/* === CoreScope — style.css === */

/* Phosphor icon sprite helper (#1648 M1).
 * Icons live in public/icons/phosphor-sprite.svg as <symbol id="ph-NAME">.
 * Reference with: <svg class="ph-icon"><use href="/icons/phosphor-sprite.svg#ph-NAME"/></svg>
 * Inherits color via currentColor; sized to 1em so it scales with surrounding text. */
.ph-icon {
  width: 1em;
  height: 1em;
  /* #1648 M1 follow-up: icons are 1em-sized so they scale with the
   * surrounding text — but several nav surfaces use a smaller font-size
   * (top-nav text is ~12.8px), which dropped the rendered icon below the
   * intended 16px floor. Pin .ph-icon's own font-size to 16px so the
   * icon scales independently of the parent's text size. */
  font-size: 16px;
  vertical-align: -0.125em;
  fill: currentColor;
  flex-shrink: 0;
}

/* Status-token color classes (#1648 M3).
 * Replace 🟢🟡🔴⚪/✅⚠️❌ emoji dots with Phosphor sprites that inherit EMOJI-OK-COMMENT
 * their color via currentColor. Each class threads the existing
 * --status-* color token so dark/light theming continues to work.
 *
 * Pattern:
 *   <span class="status-ok"><svg class="ph-icon"><use href="…#ph-circle-fill"/></svg></span>
 */
.status-ok    { color: var(--status-green); }
.status-warn  { color: var(--status-yellow); }
.status-err   { color: var(--status-red); }
.status-muted { color: var(--text-muted, #94a3b8); }
.status-ok .ph-icon,
.status-warn .ph-icon,
.status-err .ph-icon,
.status-muted .ph-icon { fill: currentColor; }

/* Aldrich webfont — used by the navbar logo SVG (issue #1137 follow-up).
 * Self-hosted woff2 (latin subset from Google Fonts, ~16KB). Only weight
 * available is 400; the SVG's font-weight="700" synthesizes bold. */
@font-face {
  font-family: 'Aldrich';
  src: url('/fonts/aldrich-regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* ============================================================
 * Z-INDEX SCALE (single source of truth — issues #1128, #1131, #1128 followup)
 * ------------------------------------------------------------
 * Use these tokens for ANY new stacking context. Raw z-index
 * literals are legacy and being migrated. When touching a rule
 * with a literal z-index, replace it with the appropriate token
 * below.
 *
 *   --z-base            0     document base, table cells
 *   --z-dropdown        100   in-flow dropdowns anchored to a
 *                             toolbar control (multi-select,
 *                             saved-filter, column-toggle,
 *                             autocomplete, region dropdown,
 *                             node-filter dropdown)
 *   --z-popover         300   popovers anchored to a dropdown
 *                             or table cell (path-overflow +N,
 *                             hop-conflict, autocomplete row
 *                             detail). Sits ABOVE dropdowns
 *                             but BELOW modals.
 *   --z-modal-backdrop  9000  full-viewport modal scrim
 *   --z-modal           9100  modal panels themselves
 *   --z-tooltip         9200  tooltips, ctx menus, hover popovers
 *                             that must float above modals
 *
 * Lint: scripts/check-css-vars.js asserts every var(--name)
 * reference resolves; CI will fail on undefined custom properties
 * (see #1128 Bug 4 root cause — `--surface` shipped undefined
 * and 8 dropdowns rendered transparent).
 *
 * Migration policy: legacy literal z-index values that work are
 * left in place to avoid behavioural risk; new code MUST use
 * the tokens. The 10 highest-traffic dropdowns/popovers in the
 * packets toolbar were renumbered in the #1128 followup.
 * ============================================================ */

/* ============================================================
 * FLUID SCAFFOLDING (issue #1054)
 * ------------------------------------------------------------
 * Global design tokens for spacing, typography, and container
 * layout. All values use clamp()/min() so the layout scales
 * smoothly between ~768px and ~2560px viewports without media
 * queries. Targets at the historic 1440px design width match
 * the previous hardcoded px values to within ~1px so existing
 * pages render identically there.
 *
 * Component-specific spacing/typography (nav, tables, charts,
 * map, packets, analytics, …) lives in its own marked region
 * further below — DO NOT add component CSS in this region.
 * ============================================================ */

/* ============================================================
 * TIER-1 PALETTE — raw colour stops. Theme-independent.
 * Issue #1671 / #1668 M2. Single source of truth for every hex
 * value that ships in this file. Outside this block, no rule
 * may use a raw `#hex` or `rgb(...)` literal — use a token.
 * Source: Tailwind CSS v3 default palette (MIT licensed,
 * battle-tested for WCAG-graded luminance steps).
 *   gray  ×9   blue  ×9   green ×5
 *   amber ×5   red   ×5   purple ×5
 * Total palette tokens: 38.
 * ============================================================ */
:root {
  /* Grays — 9 stops, low → high luminance */
  --palette-gray-50:  #f9fafb;
  --palette-gray-100: #f3f4f6;
  --palette-gray-200: #e5e7eb;
  --palette-gray-300: #d1d5db;
  --palette-gray-400: #9ca3af;
  --palette-gray-500: #6b7280;
  --palette-gray-600: #4b5563;
  --palette-gray-700: #374151;
  --palette-gray-800: #1f2937;
  --palette-gray-900: #111827;

  /* Blues — accent / info family */
  --palette-blue-100: #dbeafe;
  --palette-blue-200: #bfdbfe;
  --palette-blue-300: #93c5fd;
  --palette-blue-400: #60a5fa;
  --palette-blue-500: #3b82f6;
  --palette-blue-600: #2563eb;
  --palette-blue-700: #1d4ed8;
  --palette-blue-800: #1e40af;
  --palette-blue-900: #1e3a8a;

  /* Greens / ambers / reds / purples — status families */
  --palette-green-300: #86efac;
  --palette-green-400: #4ade80;
  --palette-green-500: #22c55e;
  --palette-green-600: #16a34a;
  --palette-green-700: #15803d;

  --palette-amber-300: #fcd34d;
  --palette-amber-400: #fbbf24;
  --palette-amber-500: #f59e0b;
  --palette-amber-600: #d97706;
  --palette-amber-700: #b45309;

  --palette-red-300: #fca5a5;
  --palette-red-400: #f87171;
  --palette-red-500: #ef4444;
  --palette-red-600: #dc2626;
  --palette-red-700: #b91c1c;

  --palette-purple-300: #c4b5fd;
  --palette-purple-400: #a78bfa;
  --palette-purple-500: #8b5cf6;
  --palette-purple-600: #7c3aed;
  --palette-purple-700: #6d28d9;
}

:root {
  /* Node-quality link strength colours (bottleneck tiers). Dark-theme
     overrides live in the [data-theme="dark"] block below (brighter hues). */
  --link-strong: #1a7f37;
  --link-medium: #bf8700;
  --link-weak: #cf222e;
  --link-oneway: #8c959f;  /* one-way (no two-way link) — distinct from weak red */
  /* --- Fluid spacing scale ---------------------------------
   * Targets at 1440px viewport: 4 / 8 / 16 / 24 / 32 / 48 px.
   * Min/max clamps keep small viewports usable and prevent
   * runaway growth on ultra-wide displays.
   */
  --space-xs:  clamp(3px,  0.15vw + 2px,  6px);
  --space-sm:  clamp(6px,  0.30vw + 4px, 12px);
  --space-md:  clamp(10px, 0.50vw + 8px, 20px);
  --space-lg:  clamp(16px, 0.75vw + 12px, 32px);
  --space-xl:  clamp(24px, 1.00vw + 16px, 48px);
  --space-2xl: clamp(32px, 2.00vw + 20px, 64px);

  /* --- Fluid type scale ------------------------------------
   * Targets at 1440px viewport: 13 / 16 / 18 / 24 / 32 px.
   * Floors ensure readability at 768px; caps prevent giant
   * text at 2560px+.
   */
  --fs-sm:  clamp(12px, 0.15vw + 11px, 14px);
  --fs-md:  clamp(14px, 0.20vw + 13px, 17px);
  --fs-lg:  clamp(15px, 0.30vw + 14px, 20px);
  --fs-xl:  clamp(18px, 0.50vw + 16px, 28px);
  --fs-2xl: clamp(22px, 0.75vw + 20px, 36px);

  /* --- Typography weight tokens — #1668 M3 ----------------
   * Chip / badge / meta rule (M3): font-size >= 14px OR
   * (font-size >= 12px AND font-weight >= 500). Use --fw-medium
   * on anything that stays at 12-13px to keep it readable. */
  --fw-normal:   400;
  --fw-medium:   500;
  --fw-semibold: 600;
  --fw-bold:     700;

  /* --- Fluid radii ----------------------------------------- */
  --radius-sm: clamp(3px, 0.1vw + 2px, 6px);
  --radius-md: clamp(6px, 0.2vw + 5px, 12px);
  --radius-lg: clamp(10px, 0.3vw + 8px, 18px);

  /* --- Container layout ------------------------------------
   * --gutter scales the side padding; --content-max caps the
   * usable content width but always leaves a gutter on each
   * side at small viewports.
   */
  --gutter: clamp(12px, 2vw, 32px);
  --content-max: min(100% - (2 * var(--gutter)), 1600px);

  --nav-bg: #0f0f23;
  --nav-bg2: #1a1a2e;
  --nav-text: #ffffff;
  --nav-text-muted: #cbd5e1;
  --nav-active-bg: rgba(74, 158, 255, 0.15);
  --accent: #4a9eff;
  /* #1668 M2 — accessible accent for chips/badges/active buttons that put
     white text on a blue surface. The legacy --accent (#4a9eff) yields
     #fff/#4a9eff = 2.75:1 (BLOCKER per M1 audit). --accent-strong drops
     two stops to palette-blue-600 = #2563eb (#fff on it = 4.83:1, AA pass)
     and is the surface for: .skip-link, .btn.active, .hop-link.hop-named,
     .nav-link.active background, .fGroup.active. */
  --accent-strong: var(--palette-blue-600);
  --text-on-accent: var(--palette-gray-50);
  /* #1668 M5 — accessible link/text color. The legacy --accent (#4a9eff)
     used for text-on-light backgrounds was 2.52:1 on white (BLOCKER per
     M5 axe gate, 219 hits across .analytics-link / .sort-active / .ch-*).
     Dark theme override below bumps to palette-blue-400 (#60a5fa) so
     links stay readable on surface-0 (#0f0f23 ≈ 8.4:1, AA pass).
     Use --link-color for any "text rendered ON the page surface that
     should look like a link / interactive accent" — NOT for backgrounds.
     Backgrounds carrying white text continue to use --accent-strong. */
  /* #1668 M5 — accessible semantic status colors. The legacy fallbacks
     baked into JS (var(--success, #22c55e)) used the bright palette-500
     hues which fail AA against white surfaces (#22c55e/white = 2.27:1,
     #ef4444/white = 3.76:1). New theme-aware tokens use palette-700 on
     light surfaces (5.0-6.5:1 vs white) and palette-400/500 on dark
     (6+:1 vs surface-0/1). All callers should now read --success /
     --warning / --danger WITHOUT a hex fallback (kept as legacy support
     only). */
  --success: var(--palette-green-700, #15803d);
  --warning: #b45309;
  --danger: var(--palette-red-600, #dc2626);
  --link-color: var(--palette-blue-600);
  --accent-bg: rgba(59, 130, 246, 0.12);
  --accent-border: rgba(59, 130, 246, 0.25);
  --geo-filter-color: #3b82f6;
  --status-green: #22c55e;
  /* #1719 — `--status-green` (#22c55e) is the BACKGROUND swatch hue
     (used as `background:` on badges + dots over white card surfaces).
     As TEXT on a white .analytics-stat-card it is only 2.28:1 (BLOCKER).
     `--status-green-text` is the text-only variant for surfaces that
     render numbers/labels in the green palette over light cards — pinned
     to palette-green-700 (#15803d) → 5.06:1 on #fff (AA pass). Dark
     theme overrides keep the bright #22c55e since it reads ≥6:1 on the
     card-bg #232340. */
  --status-green-text: var(--palette-green-700, #15803d);
  --status-yellow: #eab308;
  --status-red: #ef4444;
  --status-orange: #f97316;
  --status-purple: #a855f7;
  --status-amber: #f59e0b;
  --status-amber-light: #fef3c7;
  --status-amber-text: #92400e;
  /* #1719 — `--skew-badge-no-clock-bg` carries the muted "no clock data"
     badge background (was --text-muted which renders #d1d5db in dark
     theme → #fff text = 1.47:1, BLOCKER × 137 on clock-health). Pinned
     to palette-gray-600 (#4b5563) so #fff text reads 7.56:1 on both
     themes (light: 7.56:1, dark: 7.56:1). */
  --skew-badge-no-clock-bg: var(--palette-gray-600, #4b5563);
  /* #1648 M6 (M4 CDP carry-forward): named token for the neutral/info
     accent used as the unrolled-route hop fallback color (was #3b82f6
     baked in route-render.js). Themes via dark-mode block below. */
  --status-info: #3b82f6;
  --path-inspector-speculative: #d97706;
  /* #1715 — neighbor-graph role swatches (`#ngRoleChecks` labels) read
   * these tokens via the role-suffixed `.role-swatch--ROLE` class (analytics.js).
   * Light-theme values are palette-700 shades that clear WCAG AA ≥4.5:1
   * against the white analytics surface (#ffffff). Dark-theme overrides
   * live in the [data-theme="dark"] block further down and use palette-400
   * shades that clear AA against the dark card-bg (#1a1a2e). Keeping the
   * swatch palette as CSS custom properties is what kept #1715 from
   * regressing — never reintroduce inline `style="color:#..."` on these
   * spans. */
  --role-repeater:  #dc2626;  /* 4.83:1 on #fff */
  --role-companion: #2563eb;  /* 5.17:1 on #fff */
  --role-room:      #15803d;  /* 5.02:1 on #fff */
  --role-sensor:    #b45309;  /* 5.02:1 on #fff */
  --role-observer:  #7c3aed;  /* 5.70:1 on #fff */
  --accent-hover: #6db3ff;
  --text: #1a1a2e;
  /* #1668 M2 — bumped from #5b6370 (~5.7:1 on white) to palette-gray-700
     #374151 (~10.3:1 on white, ~9.9:1 on surface-0 #f4f5f7). Light theme
     muted text was a MAJOR/borderline case; this clears the buffer. */
  --text-muted: var(--palette-gray-700);
  --text-subtle: var(--palette-gray-600);
  --border: #e2e5ea;
  --row-stripe: #f9fafb;
  --row-hover: #eef2ff;
  --detail-bg: #ffffff;
  --badge-radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mono: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
  --input-bg: #fff;
  --selected-bg: #dbeafe;

  /* --- Logo theme tokens (PR #1137 + brand-default follow-up) -----------
   * The CoreScope SVG logos are inlined into the DOM (navbar +
   * home hero), so they inherit page CSS custom properties. The
   * legacy --logo-* names are kept so existing themes / brand
   * customizations that override them still work.
   *   --logo-text   → wordmark "CORE" / "SCOPE" / labels
   *   --logo-accent → primary node + left-side arcs   (default sage)
   *   --logo-accent-hi → secondary node + right-side arcs (default teal)
   *   --logo-muted  → tagline + sine wave
   * Sage (#cfd9c9 — fog) and teal (#2c8c8c — water) are the OUT-OF-BOX
   * brand identity. They are NOT cascaded from --accent any more, so
   * changing the app accent color via dev tools alone will NOT recolor
   * the logo. The customizer (public/customize-v2.js) mirrors --accent
   * and --accent-hover into --logo-accent / --logo-accent-hi when an
   * operator picks a theme, preserving full theme-driven recoloring.
   * No --logo-bg here on purpose — the inlined SVGs MUST be transparent
   * so they sit on whatever bg the page paints. --logo-text defaults to
   * --text (the page foreground) so the hero wordmark is readable on
   * any theme; the navbar scopes it to --nav-text below so it stays
   * white on the dark navbar. */
  --logo-text: var(--text);
  --logo-accent: #cfd9c9;
  --logo-accent-hi: #2c8c8c;
  --logo-muted: var(--text-muted);

  --surface-0: #f4f5f7;
  --surface-1: #ffffff;
  --surface-2: #ffffff;
  --surface-3: #ffffff;
  /* #1128 (Bug 4): `--surface` was referenced in 8+ rules (.fux-saved-menu,
   * .fux-popover, .path-popover, .fux-ac-dropdown, .fux-ctx-menu, ...) but
   * never defined → backgrounds resolved transparent → row content bled
   * through dropdowns. Alias it to the opaque card surface. */
  --surface: var(--surface-1);
  --content-bg: var(--surface-0);
  --card-bg: var(--surface-1);
  --hover-bg: rgba(0,0,0, 0.04);
  /* #1128 followup: caught by scripts/check-css-vars.js — these were
   * referenced without a fallback in .rf-detail-meta, .rf-detail-close
   * and .tools-card and would resolve transparent / inherit. Alias them
   * to existing tokens. */
  --text-primary: var(--text);
  --bg-hover: var(--hover-bg);
  --primary: var(--accent);
  /* #1128 followup M3: extended check-css-vars.js to scan JS/HTML inline
   * styles (analytics.js, nodes.js) caught these undefined refs.
   * Aliased to existing tokens — same pattern as --text-primary above. */
  --bg-secondary: var(--surface-2);
  --text-secondary: var(--text-muted);
  --bg: var(--surface);
  /* PR #893: --shadow used by .theme-toggle thumb shadow; define in :root for
   * light theme. Dark theme override is set in both dark-mode blocks below. */
  --shadow: rgba(0,0,0,0.3);
  --trace-ghost-color: #94a3b8;

  /* #1128: documented z-index scale. Use these custom props for any new
   * stacking context decision. Existing legacy z-index values that work are
   * left in place to avoid behavioural risk; new code must use these tokens.
   *   --z-base       0   document base, table cells
   *   --z-dropdown   100 in-flow dropdowns (multi-select, saved, columns)
   *   --z-popover    300 popovers anchored to dropdowns / cells
   *   --z-modal-backdrop 9000 / --z-modal 9100 / --z-tooltip 9200
   */
  --z-base: 0;
  --z-dropdown: 100;
  --z-popover: 300;
  --z-modal-backdrop: 9000;
  --z-modal: 9100;
  --z-tooltip: 9200;
}

/* ⚠️ DARK THEME VARIABLES — KEEP BOTH BLOCKS IN SYNC EMOJI-OK-COMMENT
   The media query handles OS-level dark mode (auto); [data-theme="dark"] handles manual toggle.
   When changing dark theme variables, update BOTH blocks below. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --status-green: #22c55e;
    /* #1719 — on dark card-bg (#232340) #22c55e gives 6.65:1, AA pass.
       Keep the bright hue for text rather than darkening it. */
    --status-green-text: #22c55e;
    /* #1719 — keep --skew-badge-no-clock-bg dark enough for #fff text. */
    --skew-badge-no-clock-bg: var(--palette-gray-600, #4b5563);
    --status-yellow: #eab308;
    --status-red: #ef4444;
    --status-orange: #f97316;
    --status-purple: #a855f7;
    --status-amber: #f59e0b;
    --status-amber-light: #422006;
    --status-amber-text: #fcd34d;
    --path-inspector-speculative: #f59e0b;
    /* #1715 — dark-theme role swatch overrides. Light values (palette-700)
     * fail 4.5:1 on the dark analytics card-bg #1a1a2e (e.g. #dc2626 →
     * 3.53:1). Palette-400/500 shades clear AA on dark. Mirror these in
     * the [data-theme="dark"] block below. */
    --role-repeater:  #ef4444;  /* 4.53:1 on #1a1a2e */
    --role-companion: #3b82f6;  /* 4.64:1 on #1a1a2e */
    --role-room:      #16a34a;  /* 5.18:1 on #1a1a2e */
    --role-sensor:    #d97706;  /* 5.35:1 on #1a1a2e */
    --role-observer:  #a78bfa;  /* 6.27:1 on #1a1a2e */
    --status-info: #60a5fa;
    /* #1668 M5 — bump link text up two stops on dark surfaces (4a9eff
       was OK but borderline on card-bg; #60a5fa = palette-blue-400 ≈
       7.8:1 on surface-0, 5.4:1 on card-bg, AA pass either way). */
    --link-color: var(--palette-blue-400);
    /* #1668 M5 — bright -400/-500 hues for AA against dark surfaces */
    --success: var(--palette-green-400, #4ade80);
    --warning: #fcd34d;
    --danger:  var(--palette-red-400, #f87171);
    --surface-0: #0f0f23;
    --surface-1: #1a1a2e;
    --surface-2: #232340;
    --surface-3: #2d2d50;
    --surface: var(--surface-1);
    --content-bg: var(--surface-0);
    --card-bg: var(--surface-2);
    --text: #e2e8f0;
    /* #1668 M2 — text-muted bumped from #a8b8cc to palette-gray-300
       (#d1d5db); ~8.7:1 on surface-0, ~7.6:1 on card-bg (was ~7.5:1).
       Clears `span.text-muted` BLOCKERs flagged on translucent surfaces
       (where the legacy value dropped below 4.5 once alpha-stacked). */
    --text-muted: var(--palette-gray-300);
    --text-subtle: var(--palette-gray-400);
    --border: #334155;
    --row-stripe: #1e1e34;
    --row-hover: #2d2d50;
    --detail-bg: #232340;
    --input-bg: #1e1e34;
    --selected-bg: #1e3a5f;
    --hover-bg: rgba(255,255,255, 0.06);
    --shadow: rgba(0,0,0,0.5);
    --trace-ghost-color: #94a3b8;
    --section-bg: #1e1e34;
  }
}
/* ⚠️ DARK THEME VARIABLES — KEEP IN SYNC with @media block above (EMOJI-OK-COMMENT) */
[data-theme="dark"] {
  color-scheme: dark;
  /* Brighter link-strength hues for contrast on dark map tiles + surfaces. */
  --link-strong: #3fb950;
  --link-medium: #d29922;
  --link-weak: #f85149;
  --link-oneway: #768390;
  --status-green: #22c55e;
  /* #1719 — see :root[prefers-color-scheme:dark] block; mirror here. */
  --status-green-text: #22c55e;
  --skew-badge-no-clock-bg: var(--palette-gray-600, #4b5563);
  --status-yellow: #eab308;
  --status-red: #ef4444;
  --status-orange: #f97316;
  --status-purple: #a855f7;
  --status-amber: #f59e0b;
  --status-amber-light: #422006;
  --status-amber-text: #fcd34d;
  --status-info: #60a5fa;
  /* #1715 — dark-theme role swatch overrides (mirrors the media-query
   * block above). Palette-400/500 shades clear WCAG AA on #1a1a2e. */
  --role-repeater:  #ef4444;  /* 4.53:1 on #1a1a2e */
  --role-companion: #3b82f6;  /* 4.64:1 on #1a1a2e */
  --role-room:      #16a34a;  /* 5.18:1 on #1a1a2e */
  --role-sensor:    #d97706;  /* 5.35:1 on #1a1a2e */
  --role-observer:  #a78bfa;  /* 6.27:1 on #1a1a2e */
  /* #1668 M5 — see :root[data-theme="dark"] media block above for rationale */
  --link-color: var(--palette-blue-400);
  --success: var(--palette-green-400, #4ade80);
  --warning: #fcd34d;
  --danger:  var(--palette-red-400, #f87171);
  --surface-0: #0f0f23;
  --surface-1: #1a1a2e;
  --surface-2: #232340;
  --surface-3: #2d2d50;
  --surface: var(--surface-1);
  --content-bg: var(--surface-0);
  --card-bg: var(--surface-2);
  --text: #e2e8f0;
  /* #1668 M2 — see :root[data-theme="dark"] media block for rationale */
  --text-muted: var(--palette-gray-300);
  --text-subtle: var(--palette-gray-400);
  --border: #334155;
  --row-stripe: #1e1e34;
  --row-hover: #2d2d50;
  --detail-bg: #232340;
  --input-bg: #1e1e34;
  --selected-bg: #1e3a5f;
  --hover-bg: rgba(255,255,255, 0.06);
  --shadow: rgba(0,0,0,0.5);
  --trace-ghost-color: #94a3b8;
  --section-bg: #1e1e34;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; font-family: var(--font); font-size: var(--fs-md); background: var(--content-bg); color: var(--text); }

/* ============================================================
 * COMPONENT STYLES — page-specific rules below.
 * (Nav, tables, charts, map, packets, analytics, etc.)
 * Tasks 1050-3..6 / 1052-* edit sections inside this region.
 * ============================================================ */

/* === Skip Link === */
/* #1668 M2 — was background:var(--accent) (#4a9eff) with white text =
   2.75:1 BLOCKER. Bumped to --accent-strong / --text-on-accent for
   4.83:1 AA pass (both themes). */
.skip-link { position: absolute; top: -100%; left: 16px; padding: 8px 16px; background: var(--accent-strong); color: var(--text-on-accent); border-radius: 6px; z-index: 999; font-weight: 600; text-decoration: none; }
.skip-link:focus { top: 8px; }

/* === Focus Indicators === */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible,
.data-table tbody tr:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}

/* === Touch Targets === */
/* WCAG 2.5.5 / Apple HIG / Material: 48x48 CSS px minimum touch target for
   all interactive controls. Targets are achieved with min-height/min-width
   plus inline-flex centering so existing visual styling (font-size, padding,
   icon size) is preserved on desktop while the *hit area* grows for touch.
   Issue #1060.

   Issue #1400: the global `min-height: 48px` on `.nav-link` was the root
   cause of ~20 recurring nav-vanishing bugs (#1391, #1396, and ~18 earlier
   symptoms). 48px links + padding inflated `.nav-links` to 56px tall inside
   a 52px `.top-nav` with `overflow:hidden`; Firefox flex-centered the
   over-tall item to a negative y, clipping the entire link strip ABOVE the
   viewport. Touch-target sizing is preserved for mobile via the
   `@media (max-width: 767px)` override added near the hamburger block. */
.nav-link { display: inline-flex; align-items: center; }

/* Generic button surfaces — filter bar, modal buttons, inline .btn usages.
   inline-flex keeps text/icons centered without changing visible padding much. */
.btn,
.filter-bar .btn,
.filter-group .btn {
  min-height: 48px;
  min-width: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.btn-icon {
  min-height: 48px;
  min-width: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  touch-action: manipulation;
}

.nav-btn {
  min-height: 48px;
  min-width: 48px;
  touch-action: manipulation;
}

.ch-icon-btn,
.ch-remove-btn,
.ch-share-btn {
  min-height: 48px;
  min-width: 48px;
  touch-action: manipulation;
}

.ch-gear-btn {
  min-height: 48px;
  min-width: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  touch-action: manipulation;
}

.panel-close-btn {
  min-height: 48px;
  min-width: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  touch-action: manipulation;
}

.mc-jump-btn {
  min-height: 48px;
  min-width: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  touch-action: manipulation;
}

button.ch-item {
  min-height: 48px;
  touch-action: manipulation;
}

/* Additional button-like controls discovered during PR #1067 review (Issue
   #1060 follow-up). Same 48x48 minimums + touch-action so all interactive
   surfaces meet WCAG 2.5.5. */
.btn-link,
.col-toggle-btn,
.filter-toggle-btn,
.ch-add-channel-btn,
.ch-back-btn,
.ch-modal-btn-secondary,
.ch-scroll-btn,
.chooser-btn,
.clock-filter-btn,
.copy-link-btn,
.alab-btn {
  min-height: 48px;
  min-width: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.btn-link:active,
.col-toggle-btn:active,
.filter-toggle-btn:active,
.ch-add-channel-btn:active,
.ch-back-btn:active,
.ch-modal-btn-secondary:active,
.ch-scroll-btn:active,
.chooser-btn:active,
.clock-filter-btn:active,
.copy-link-btn:active,
.alab-btn:active {
  background: var(--row-hover);
  transform: scale(0.97);
  opacity: 0.9;
}

/* Form controls: native <select> and text-like <input> need 48px tap targets
   too. Scoped to interactive input types — checkbox/radio/range keep their
   own visible size and rely on a wrapping label/parent for hit area. */
select,
input[type="text"],
input[type="search"],
input[type="number"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="url"],
input[type="date"],
input[type="time"],
input[type="datetime-local"],
input[type="month"],
input[type="week"] {
  min-height: 48px;
  box-sizing: border-box;
  touch-action: manipulation;
}

/* Theme the UA-native checkbox + radio so they pick up the page accent
 * instead of rendering as bare white squares against the dark theme.
 * Pairs with `color-scheme: dark` on the dark-theme rule so the box
 * surround also re-skins. (Tufte #1646 — bare native widgets are
 * chartjunk-by-omission: they advertise the chrome, not the data.) */
input[type="checkbox"],
input[type="radio"] {
  accent-color: var(--accent);
}

/* Visible :active states — touch devices have no hover, so :active is the
   primary feedback channel. Use opacity + slight scale + background shift so
   the press is felt even when the user's finger covers the control. */
.btn:active,
.filter-bar .btn:active,
.filter-group .btn:active {
  background: var(--row-hover);
  transform: scale(0.97);
  opacity: 0.9;
}
.btn-icon:active {
  background: var(--row-hover);
  transform: scale(0.97);
}
.nav-btn:active {
  background: var(--nav-bg2);
  transform: scale(0.97);
  opacity: 0.9;
}
.ch-icon-btn:active,
.ch-remove-btn:active,
.ch-share-btn:active {
  opacity: 1;
  transform: scale(0.92);
}
.ch-gear-btn:active,
.panel-close-btn:active,
.mc-jump-btn:active {
  background: var(--row-hover);
  transform: scale(0.95);
}

/* Hover→tap conversion. Hover-only feedback (e.g., tooltip reveal) is gated
   behind @media (hover: hover) so touch devices don't get stuck in a hover
   state after a tap. The same content is exposed on tap via :focus-within
   below. */
@media (hover: hover) {
  .sort-help:hover .sort-help-tip { display: block; }
}

/* Tap-to-reveal tooltip: .sort-help becomes keyboard/tap focusable (set
   tabindex="0" in markup). On focus or focus-within, the tip is shown so a
   tap on touch devices reveals it without requiring hover. */
.sort-help { outline: none; }
.sort-help:focus,
.sort-help:focus-within {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}
.sort-help:focus .sort-help-tip,
.sort-help:focus-within .sort-help-tip { display: block; }

/* === Nav (Issue #1055 — Priority+ at all widths) ===
   The top-nav uses Priority+ at ALL widths: only links marked
   data-priority="high" render inline; everything else collapses into
   the "More ▾" menu. This eliminates the historic 1080–1279px overflow
   window AND the 1280–1599px overlap window where the full link strip
   ran underneath .nav-right. Spacing and type use the #1054 fluid
   clamp() tokens so the bar scales smoothly across viewport widths.
   The hamburger and stacked mobile layout still take over at <768px. */
.top-nav {
  display: flex; align-items: center; justify-content: space-between;
  background: linear-gradient(135deg, var(--nav-bg) 0%, var(--nav-bg2) 100%); color: var(--nav-text);
  padding: 0 var(--gutter); height: 52px;
  position: sticky; top: 0; z-index: 1100;
  box-shadow: 0 2px 8px rgba(0,0,0,.3);
  flex-wrap: nowrap; overflow: hidden; min-width: 0;
  /* #1413: enforce a minimum horizontal gap between flex children of
     .top-nav (.nav-left and .nav-right). Without this the only thing
     pushing nav-right away from nav-left was justify-content: space-
     between, which collapses to zero whenever nav-left's intrinsic
     content fills the row — including the historic vw~1101..1599 band
     where .nav-stats reappears (display:flex) and shoves nav-right
     leftward to overlap the .nav-more-btn. */
  column-gap: 16px;
}
/* #1403: removed overflow:hidden — was clipping flex children offscreen (vertical) AND clipping the More dropdown contents. The original purpose was to prevent horizontal overflow during Priority+ measurement (#1066) — that purpose is served by .top-nav itself which still has overflow:hidden. */
.nav-left { display: flex; align-items: center; gap: var(--space-lg); min-width: 0; flex-shrink: 1; }
.nav-brand { display: flex; align-items: center; gap: var(--space-sm); text-decoration: none; color: var(--nav-text); font-weight: 700; font-size: var(--fs-md); }
.brand-icon { font-size: 20px; }
/* #1450 — split .brand-logo by element type:
   - Inline default wordmark (<svg>) keeps the 125x36 pin tuned to its
     viewBox (#1141 widened it to fit CORE/SCOPE; intrinsic content
     ratio ~3.08:1, so width:125px @ height:36px is the natural box).
   - Operator custom logo via branding.logoUrl is an <img>, whose
     natural aspect ratio MUST be preserved — pinning width:125px on
     a 1:1 or portrait image squishes it into a pill. Use width:auto
     with a max-width cap so wide logos don't blow the nav layout. */
svg.brand-logo {
  display: block;
  height: 36px;
  width: 125px;
  max-height: 36px;
  /* The logo is inlined into the DOM (PR #1137) so it inherits page
     CSS variables; theme via --logo-text / --logo-accent / etc. defined
     in :root above. The .top-nav scope below overrides --logo-text to
     --nav-text so the wordmark stays readable on the dark navbar even
     when the page theme is Light. */
}
img.brand-logo {
  display: block;
  height: 36px;
  width: auto;          /* preserve natural aspect of operator image */
  max-width: 200px;     /* cap wide logos so they can't push nav-right off */
  max-height: 36px;
  object-fit: contain;  /* defensive — never crop or stretch the image */
}
.top-nav {
  /* Navbar lives on --nav-bg (typically dark), so the brand wordmark
     must use --nav-text rather than the page --text default. */
  --logo-text: var(--nav-text);
}
/* Mark-only navbar logo: hidden by default, swapped in for the full
   wordmark logo at narrow viewports where SCOPE would otherwise clip
   (#1137 mobile width pin was 99px → SCOPE→SCOF at ≤390px). */
.brand-mark-only {
  display: none;
  height: 32px;
  width: auto;
}
/* #1173: legacy navbar `.live-dot` indicator removed — WS state is now
   encoded in the brand-logo itself (.logo-disconnected + packet-driven
   .logo-pulse-active). The navbar element is gone from index.html, so we
   don't ship a `display: none` shell here — `live.js` reuses `.live-dot`
   for legend bullets (styled by live.css) and a global no-op rule would
   wipe those out. If a stale extension/customizer ever injects a navbar
   `.live-dot`, it's a harmless 0×0 unstyled span. */
/* #1173: brand-logo packet-pulse animation.
   - Class toggles only — pure CSS animation. JS adds/removes:
     .logo-pulse-active (chained ping, source then destination)
     .logo-pulse-blip   (reduced-motion fallback, destination only)
     .logo-disconnected (sustained desaturate while WS down)
   - All color comes from --logo-accent / --logo-accent-hi tokens.
     Animation only tweaks filter: brightness() + transform: scale(). */
.brand-logo circle.logo-node-a,
.brand-logo circle.logo-node-b,
.brand-mark-only circle.logo-node-a,
.brand-mark-only circle.logo-node-b {
  transform-box: fill-box;
  transform-origin: center;
  transition: filter .12s ease-out;
  will-change: filter, transform;
}
@keyframes logo-pulse-step {
  0%   { filter: brightness(1);   transform: scale(1); }
  40%  { filter: brightness(1.6); transform: scale(1.18); }
  100% { filter: brightness(1);   transform: scale(1); }
}
.brand-logo circle.logo-pulse-active,
.brand-mark-only circle.logo-pulse-active {
  animation: logo-pulse-step 80ms ease-out;
}
@keyframes logo-pulse-blip-step {
  0%   { opacity: 1; }
  50%  { opacity: 0.55; }
  100% { opacity: 1; }
}
.brand-logo circle.logo-pulse-blip,
.brand-mark-only circle.logo-pulse-blip {
  animation: logo-pulse-blip-step 140ms linear;
}
.brand-logo.logo-disconnected,
.brand-mark-only.logo-disconnected {
  filter: grayscale(0.6) opacity(0.7);
  transition: filter .25s ease-out;
}
@media (prefers-reduced-motion: reduce) {
  .brand-logo circle.logo-pulse-active,
  .brand-mark-only circle.logo-pulse-active {
    /* Defensive: in case anything mistakenly toggles the chained class
       under reduced-motion, neutralize the scale animation. */
    animation: none;
  }
}

.nav-links { display: flex; align-items: center; gap: var(--space-xs); flex: 1 1 auto; min-width: 0; }
.nav-link {
  color: var(--nav-text-muted); text-decoration: none;
  padding: 14px clamp(8px, 0.6vw + 4px, 14px); font-size: var(--fs-sm);
  font-weight: var(--fw-medium); /* #1668 M3 — 12-14px fluid + 500 floor */
  border-bottom: 2px solid transparent; transition: all .15s;
  background: none; border-top: none; border-left: none; border-right: none;
  cursor: pointer; font-family: var(--font);
  white-space: nowrap; /* #1046: never wrap labels — wrapping makes the nav bar grow taller */
}
.nav-link:hover { color: var(--nav-text); }
.nav-link.active { 
  color: var(--nav-text); 
  border-bottom-color: transparent;
  background: var(--nav-active-bg); 
  border-radius: 6px; 
  margin: 4px 0;
  padding: 10px clamp(8px, 0.6vw + 4px, 14px);
}

.nav-dropdown { position: relative; }
.dropdown-menu {
  display: none; position: absolute; top: 100%; left: 0;
  background: var(--nav-bg2); border: 1px solid var(--border); border-radius: 6px;
  min-width: 140px; padding: 4px 0; box-shadow: 0 8px 24px rgba(0,0,0,.4);
}
.nav-dropdown:hover .dropdown-menu { display: block; }
.dropdown-item {
  display: block; padding: 8px 16px; color: var(--text-muted); text-decoration: none; font-size: 13px;
}
.dropdown-item:hover { background: var(--accent-strong); color: var(--text-on-accent); }

.nav-right { display: flex; align-items: center; gap: var(--space-sm); flex-shrink: 0; }
.nav-btn {
  background: none; border: 1px solid var(--border); color: var(--nav-text-muted); padding: 6px 12px;
  border-radius: 6px; cursor: pointer; font-size: 14px; transition: all .15s;
  min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
}
.nav-btn:hover { background: var(--nav-bg2); color: var(--nav-text); }

/* === Theme Toggle Switch === */
.theme-toggle {
  display: inline-flex; align-items: center; cursor: pointer;
  padding: 0; margin: 0; border: none; background: none;
  min-width: 44px; min-height: 44px; justify-content: center;
}
.theme-toggle input[type="checkbox"] {
  position: absolute; opacity: 0; width: 0; height: 0; pointer-events: none;
}
.theme-toggle-track {
  position: relative; width: 46px; height: 24px;
  background: var(--border); border-radius: 12px;
  transition: background 0.2s ease; display: flex; align-items: center;
  border: 1px solid var(--border);
}
.theme-toggle input:checked ~ .theme-toggle-track {
  background: var(--accent);
}
/* PR #893 follow-up: keyboard focus indicator. The native checkbox is visually
 * hidden, so we draw the ring on the track sibling when the checkbox is
 * :focus-visible. Matches the global focus-ring style above. */
.theme-toggle input:focus-visible ~ .theme-toggle-track {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.theme-toggle-thumb {
  position: absolute; left: 3px; width: 18px; height: 18px;
  background: var(--nav-text); border-radius: 50%;
  box-shadow: 0 1px 3px var(--shadow);
  transition: transform 0.2s ease;
  z-index: 1;
}
.theme-toggle input:checked ~ .theme-toggle-track .theme-toggle-thumb {
  transform: translateX(22px);
}
.theme-toggle-icon {
  position: absolute; font-size: 10px; line-height: 1;
  top: 50%; transform: translateY(-50%);
  pointer-events: none; user-select: none;
  transition: opacity 0.2s ease;
}
.theme-toggle-sun { right: 4px; opacity: 1; }
.theme-toggle-moon { left: 4px; opacity: 0; }
.theme-toggle input:checked ~ .theme-toggle-track .theme-toggle-sun { opacity: 0; }
.theme-toggle input:checked ~ .theme-toggle-track .theme-toggle-moon { opacity: 1; }
/* PR #893 follow-up: respect prefers-reduced-motion — disable the slide/fade
 * animation so the thumb snaps to position. */
@media (prefers-reduced-motion: reduce) {
  .theme-toggle-track,
  .theme-toggle-thumb,
  .theme-toggle-icon { transition: none; }
}
/* PR #893 follow-up: Windows High Contrast / forced-colors mode — the track
 * background and thumb shadow get flattened to system colors, so explicitly
 * keep a system-colored border on track and thumb to stay visible. */
@media (forced-colors: active) {
  .theme-toggle-track { border: 1px solid CanvasText; background: Canvas; }
  .theme-toggle-thumb { background: CanvasText; box-shadow: none; }
  .theme-toggle input:focus-visible ~ .theme-toggle-track {
    outline: 2px solid Highlight;
  }
}
/* === Nav Stats === */
.nav-stats {
  display: flex; gap: 12px; align-items: center; font-size: 12px; color: var(--nav-text-muted);
  font-family: var(--mono); margin-right: 4px; white-space: nowrap;
}
.nav-stats .stat-val { color: var(--nav-text); font-weight: 600; transition: color 0.3s ease; }
.nav-stats .stat-val.updated { color: var(--link-color); }

/* === Layout === */
/* Default: body-scroll mode — content pushes beyond viewport, iOS status-bar
   tap-to-scroll works because <body> is the scroll container.  Pages that need
   a fixed-height container (maps, virtual-scroll, split-panels) add
   .app-fixed via the router so their children can use height:100%. */
#app { min-height: calc(100vh - 52px); min-height: calc(100dvh - 52px); }
/* #1174 mesh-op review: subtract --bottom-nav-reserve so /map and the
 * other fixed-height pages (packets, nodes, channels, audio-lab) do not
 * have their last 56px covered by the bottom-nav at ≤768. The token is
 * 0px at desktop so wide-viewport behavior is unchanged. */
#app.app-fixed { height: calc(100vh - 52px - var(--bottom-nav-reserve, 0px)); height: calc(100dvh - 52px - var(--bottom-nav-reserve, 0px)); min-height: 0; overflow: hidden; }

.split-layout {
  display: flex; height: 100%; overflow: hidden;
}
.panel-left {
  flex: 1; min-width: 0; overflow: auto; padding: 8px 12px;
}
.panel-right {
  width: 420px; min-width: 280px; max-width: 70vw; border-left: 1px solid var(--border);
  background: var(--detail-bg); overflow-y: auto; padding: 16px;
  position: relative;
}
.panel-resize-handle {
  position: absolute; top: 0; left: -3px; width: 6px; height: 100%;
  cursor: col-resize; z-index: 10; background: transparent;
}
.panel-resize-handle:hover, .panel-resize-handle.dragging {
  background: var(--accent); opacity: 0.3;
}
.panel-right.empty {
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 14px;
}
.split-layout.detail-collapsed .panel-right { display: none; }
.panel-close-btn {
  position: absolute; top: 8px; right: 12px; z-index: 11;
  background: none; border: none; font-size: 20px; line-height: 1;
  color: var(--text-muted); cursor: pointer; padding: 4px 6px;
  border-radius: 4px; transition: color 0.15s, background 0.15s;
}
.panel-close-btn:hover { color: var(--text); background: var(--surface-1); }
.panel-right.empty .panel-close-btn { display: none; }

/* === Page Header === */
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}
.page-header h2 { font-size: 18px; font-weight: 700; }
.page-header .count { color: var(--text-muted); font-weight: 400; font-size: 14px; margin-left: 8px; }

/* === Filter Bar === */
/* === Filter toolbar (#1122)
 * Toolbar layout is composed of fenced .filter-group clusters:
 *   1. Quick filters       — text inputs (hash, node, observer, region, type, channel)
 *   2. Toggles             — Group by Hash, ★ My Nodes EMOJI-OK-COMMENT
 *   3. Time window         — last-N selector
 *   4. Sort & view options — observer sort, columns toggle, hex paths
 * Adjacent .filter-group + .filter-group siblings get a left divider + padding
 * so the visual seam between groups stays readable even when wrapped. */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; align-items: center;
  row-gap: 12px;
}
.filter-bar input, .filter-bar select {
  padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 13px; background: var(--input-bg); color: var(--text); font-family: var(--font);
  height: 34px; min-height: 34px; box-sizing: border-box; line-height: 1;
}
.filter-bar input { width: 120px; }
.filter-bar select { min-width: 90px; }
.filter-bar .btn {
  padding: 6px 14px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--input-bg); cursor: pointer; font-size: 13px; transition: all .15s;
  font-family: var(--font); color: var(--text); height: 34px; min-height: 34px; box-sizing: border-box; line-height: 1;
}
.filter-group { display: flex; gap: 6px; align-items: center; }
/* #1124 (MAJOR-3): each grouped cluster wraps as a single unit at narrow
 * widths instead of letting individual controls reflow across categories. */
.filter-bar .filter-group { flex-wrap: nowrap; }
.filter-group .btn { padding: 4px 10px; font-size: 12px; font-weight: var(--fw-medium); border-radius: 12px; border: 1px solid var(--border); background: var(--input-bg); color: var(--text); cursor: pointer; transition: background 0.15s, color 0.15s; height: 34px; min-height: 34px; box-sizing: border-box; line-height: 1; } /* #1668 M3 — added 500 weight on chip */
.filter-group .btn.active { background: var(--accent-strong); color: var(--text-on-accent); border-color: var(--accent-strong); }
.filter-group .btn:hover:not(.active) { background: var(--surface-2); }
.filter-group + .filter-group { border-left: 1px solid var(--border); padding-left: 12px; margin-left: 6px; }
.sort-help { cursor: help; font-size: 14px; color: var(--text-muted, #888); position: relative; display: inline-block; }
.sort-help-tip {
  display: none; position: absolute; top: 130%; left: 50%; transform: translateX(-50%);
  background: var(--card-bg, #222); color: var(--text, #eee); border: 1px solid var(--border);
  border-radius: 6px; padding: 8px 12px; font-size: 12px; line-height: 1.5;
  white-space: pre-line; width: 260px; z-index: 100;
  box-shadow: 0 4px 12px rgba(0,0,0,.3); pointer-events: none;
}
.sort-help:hover .sort-help-tip { display: block; }
.filter-bar .btn:hover { background: var(--row-hover); }
.filter-bar .btn.active { background: var(--accent-strong); color: var(--text-on-accent); border-color: var(--accent-strong); }
.filter-bar .col-toggle-btn { height: 34px; min-height: 34px; }

.btn-icon {
  background: none; border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); padding: 6px 10px; cursor: pointer; font-size: 14px; transition: all .15s;
}
.btn-icon:hover { background: var(--row-hover); }

/* === Tables === */
/* #1056: Primary tables (packets, nodes, observers) are fluid:
 *  - width:100% — columns share the available width via the browser layout
 *  - no fixed px widths on individual columns; only min-widths to protect
 *    legibility, set in `clamp(...)` so they relax on small viewports
 *  - priority-based column hiding done in JS via .col-hidden + a "+N hidden"
 *    pill rendered inside thead (clickable to reveal)
 */
.data-table {
  width: 100%; border-collapse: collapse; font-size: 13px; font-weight: var(--fw-medium);
  table-layout: auto;
} /* #1668 M3 — was 12px/400, now 13px paired with 500 weight */
.data-table th {
  text-align: left; padding: 4px 6px; font-weight: 600; font-size: 11px;
  text-transform: uppercase; letter-spacing: .3px; color: var(--text-muted);
  border-bottom: 2px solid var(--border); background: var(--card-bg);
  position: sticky; top: 0; z-index: 1;
}
.data-table th.sortable { cursor: pointer; }
.data-table th.sortable:hover { color: var(--link-color); }
.data-table td {
  padding: 3px 6px; border-bottom: 1px solid var(--border);
  vertical-align: middle; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
  max-width: 0; /* forces td to respect table width instead of expanding to content */
}
.data-table td.col-details { white-space: normal; word-break: break-word; max-width: 480px; }
/* #1415: pin the expand-chevron column narrow at every viewport.
 * Chevron glyph is ~16px wide; legacy column auto-sized to 50-180px and shoved every
 * downstream data column right. 32px is enough for the ▶/▼ + 8px padding. */
.data-table th.col-expand,
.data-table td.col-expand {
  width: 32px; min-width: 32px; max-width: 32px;
  padding: 3px 4px; text-align: center;
}

/* #1415 / #1458 / #1461 — mobile packets UX overhaul.
 * NOTE: hiding the first dt/dd pair below assumes Payload Type is the
 * first <dt> in .detail-meta (per packets.js renderDetail). Keep that
 * invariant — test-issue-1415-packets-layout.js asserts it. */
@media (max-width: 600px) {
  /* #1: kill empty chevron rail */
  #pktTable th.col-expand,
  #pktTable td.col-expand { display: none !important; }

  /* #1b: slim THEAD ~24px sticky */
  #pktTable thead th {
    padding: 3px 6px !important;
    font-size: 9px !important;
    line-height: 1.2 !important;
    letter-spacing: 0.04em !important;
    text-transform: uppercase;
    height: 24px !important;
  }
  #pktTable thead { position: sticky; top: 0; z-index: 5; background: var(--surface-1, #1a1a1a); }

  /* #2: hide page-header row + filter-expr.
   * pause + Filters pill are mirrored into .nav-left by mobile-page-actions.js.
   * NOTE: do NOT display:none the entire .filter-bar — the original
   * .filter-toggle-btn lives inside it and must remain clickable for the
   * #534 E2E test (and for any user whose navbar mirror failed to inject). */
  #pktLeft .page-header { display: none !important; }
  #pktLeft .pkt-filter-expr { display: none !important; }
  /* #1461 followup: the navbar mirror is always present on mobile.
   * Hide the in-page Filters button \u2014 the test #534 now clicks the
   * navbar mirror (.filter-toggle-btn-mirror) instead. */
  .filter-bar > .filter-toggle-btn {
    display: none !important;
  }
  /* Bar itself has no chrome unless expanded */
  .filter-bar {
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
    margin: 0 !important;
    min-height: 0 !important;
  }
  .filter-bar.filters-expanded {
    padding: 6px 8px !important;
    margin-bottom: 4px !important;
    background: var(--surface-2, rgba(0,0,0,0.05)) !important;
    border: 1px solid var(--border, #333) !important;
    border-radius: 6px !important;
  }

  /* Navbar-mirror buttons injected by mobile-page-actions.js. Visual tokens
   * (border, colors) live here so the customizer can theme them and so we
   * don't ship them as inline cssText strings. */
  .mpa-btn-icon {
    padding: 4px 6px;
    font-size: 14px;
    background: transparent;
    border: 1px solid var(--border, #444);
    border-radius: 6px;
    color: var(--nav-text, #fff);
    cursor: pointer;
  }
  .mpa-btn-pill {
    padding: 4px 10px;
    font-size: 12px;
    background: transparent;
    border: 1px solid var(--border, #444);
    border-radius: 999px;
    color: var(--nav-text, #fff);
    cursor: pointer;
    font-weight: 500;
  }
  .mpa-toast {
    position: fixed;
    left: 50%;
    bottom: 90px;
    transform: translateX(-50%);
    background: var(--surface-2, #222);
    color: var(--text, #fff);
    padding: 10px 16px;
    border: 1px solid var(--border, #444);
    border-radius: 8px;
    font-size: 13px;
    max-width: 80vw;
    z-index: 9999;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    transition: opacity .3s;
  }

  .filter-bar.filters-expanded {
    padding: 6px 8px !important;
    margin-bottom: 4px !important;
    background: var(--surface-2, rgba(0,0,0,0.05)) !important;
    border: 1px solid var(--border, #333) !important;
    border-radius: 6px !important;
    height: auto;
  }

  /* #3: detail panel cleanup */
  /* Strip redundant src→dst line (identity in sticky header) */
  .mobile-detail-sheet .detail-srcdst { display: none !important; }
  /* Hide boxed "decoded message" card on mobile — content already in
   * the sticky header's semantic summary */
  .mobile-detail-sheet .detail-message { display: none !important; }
  /* Hide PAYLOAD TYPE row (first dt+dd pair — already in header badge) */
  .mobile-detail-sheet dl.detail-meta > dt:first-child,
  .mobile-detail-sheet dl.detail-meta > dt:first-child + dd { display: none !important; }
  /* 2-col grid for label/value rows */
  .mobile-detail-sheet dl.detail-meta {
    display: grid;
    grid-template-columns: minmax(90px, 30%) 1fr;
    gap: 4px 10px;
    margin: 8px 0 !important;
  }
  .mobile-detail-sheet dl.detail-meta dt {
    margin: 0 !important;
    padding: 0 !important;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    align-self: center;
  }
  .mobile-detail-sheet dl.detail-meta dd {
    margin: 0 !important;
    padding: 0 !important;
    font-size: 13px;
  }

  /* #4: sheet structure — kill handle, sticky header inside sheet, clear
   * bottom-nav (58px tall) so last row doesn't get cut off, taller max */
  /* Restructure: outer sheet has fixed height + overflow:hidden; the
   * .mobile-sheet-content is the ONLY scroll region. ✕ close stays sticky EMOJI-OK-COMMENT
   * pinned at top of the sheet. Title also stays sticky within the
   * scroll region. */
  .mobile-detail-sheet {
    max-height: calc(100vh - 110px) !important;  /* leave room for bottom nav */
    padding: 0 !important;
    overflow: hidden !important;
    display: none;
    flex-direction: column;
  }
  .mobile-detail-sheet.open { display: flex !important; }
  .mobile-sheet-handle { display: none !important; }  /* conflicts with browser pull-to-refresh */
  .mobile-sheet-close {
    position: absolute !important;
    top: 6px !important;
    right: 10px !important;
    background: var(--surface-2, rgba(0,0,0,0.6)) !important;
    border-radius: 999px !important;
    width: 32px !important;
    height: 32px !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
    font-size: 16px !important;
    z-index: 20 !important;
    border: 1px solid var(--border, #444) !important;
  }
  .mobile-sheet-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 12px 12px 60px !important;
    /* visible scrollbar so operator sees there's more */
    scrollbar-width: thin;
  }
  .mobile-sheet-content::-webkit-scrollbar { width: 6px; }
  .mobile-sheet-content::-webkit-scrollbar-thumb { background: var(--border, #555); border-radius: 3px; }
  /* Sticky in-sheet header for packet identity */
  .mobile-detail-sheet .detail-title {
    position: sticky;
    top: 0;
    background: var(--detail-bg);
    z-index: 5;
    padding: 6px 36px 8px 0;
    margin: 0 0 8px 0;
    border-bottom: 1px solid var(--border);
  }
}
.data-table td:has(.spark-bar), .data-table td.col-spark { max-width: none; overflow: visible; min-width: 80px; }
.data-table .col-time { min-width: clamp(72px, 8vw, 108px); white-space: nowrap; }

/* #1056: priority-based column hiding + reveal pill
 * .col-hidden is toggled by JS (TableResponsive.apply) on both th and td.
 * The pill is appended into the last visible th in the header row. */
.data-table th.col-hidden,
.data-table td.col-hidden { display: none !important; }
.col-hidden-pill {
  display: inline-block; margin-left: 6px;
  padding: 1px 7px; border-radius: 999px;
  /* #1668 M5 — was bg:--accent-bg (rgba blue tint) + color:--accent
     = ~2.4:1 on light theme. Swap the tint for solid --accent-strong
     (palette-blue-600 #2563eb) and use --text-on-accent (gray-50) so
     the pill matches the M2 .skip-link / .filter-bar .btn.active
     pattern: 4.83:1 AA both themes, no per-theme branching. */
  background: var(--accent-strong);
  color: var(--text-on-accent);
  font-size: 12px; font-weight: var(--fw-bold); letter-spacing: .3px; /* #1668 M3 — was 10px */
  cursor: pointer; user-select: none; vertical-align: middle;
  border: 1px solid var(--accent, #60a5fa);
  text-transform: none;
}
.col-hidden-pill:hover { filter: brightness(1.15); }
.col-hidden-pill:focus-visible { outline: 2px solid var(--accent, #60a5fa); outline-offset: 2px; }
/* MAJOR-4: re-hide affordance — visually distinct from the +N reveal pill. */
.col-rehide-pill { background: transparent; color: var(--text-dim, #94a3b8); border-color: var(--border, #334155); margin-left: 4px; }
/* MAJOR-2: when user-resizable columns push total width past container,
 * fall back to horizontal scroll on the wrap rather than overflowing the page. */
.table-fluid-wrap { width: 100%; overflow-x: auto; }

/* === #1056 AC#4: Slide-over row-detail overlay (narrow viewports) ========
 * Singleton .slide-over-backdrop + .slide-over-panel injected into <body>
 * by SlideOver helper in packets.js. Used by Packets/Nodes/Observers row
 * clicks at viewport <=1023 instead of routing to a separate page.
 * Reuses the existing slideInRight keyframe defined later in this file.
 */

/* #1168 Munger #3: ref-counted scroll-lock. Multiple modal surfaces
 * (SlideOver, ChannelColorPicker, future modals) acquire/release a
 * shared count via window.__scrollLock; the class is added on first
 * acquire and removed on last release. Replaces the previous
 * body.style.overflow capture-and-restore string approach which
 * corrupted overflow under last-writer-wins races. */
body.scroll-locked { overflow: hidden; }
.slide-over-backdrop {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(0, 0, 0, 0.5);
  cursor: pointer;
}
.slide-over-backdrop[hidden] { display: none; }
.slide-over-panel {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: min(480px, 90vw);
  z-index: 1001;
  background: var(--detail-bg, var(--card-bg, #1f2937));
  color: var(--text, inherit);
  border-left: 1px solid var(--border);
  box-shadow: -8px 0 24px rgba(0, 0, 0, 0.35);
  overflow-y: auto; overflow-x: hidden;
  display: flex; flex-direction: column;
  animation: slideInRight 200ms ease-out;
}
.slide-over-panel[hidden] { display: none; }
.slide-over-header {
  position: sticky; top: 0; z-index: 2;
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px; padding: 10px 12px;
  background: var(--card-bg, var(--detail-bg));
  border-bottom: 1px solid var(--border);
}
.slide-over-title {
  margin: 0; font-size: 14px; font-weight: 600;
  color: var(--text, inherit);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.slide-over-close {
  background: none; border: none; cursor: pointer;
  font-size: 18px; line-height: 1;
  color: var(--text-muted, #94a3b8);
  padding: 4px 8px; border-radius: 4px;
  /* WCAG 2.5.5 / Apple HIG — 48px tap target on touch devices. */
  min-width: 44px; min-height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
}
.slide-over-close:hover { color: var(--text, inherit); background: var(--row-hover); }
.slide-over-close:focus-visible { outline: 2px solid var(--accent, #60a5fa); outline-offset: 2px; }
.slide-over-content { flex: 1; min-height: 0; padding: 12px; }
@media (prefers-reduced-motion: reduce) {
  .slide-over-panel { animation: none; }
}

.timestamp-future-icon { margin-left: 4px; cursor: help; }
.data-table tbody tr:nth-child(even) { background: var(--row-stripe); }
.data-table tbody tr:hover { background: var(--row-hover); cursor: pointer; }
.data-table tbody tr.selected { background: var(--selected-bg); }

/* === Badges === */
.badge {
  display: inline-block; padding: 2px 8px; border-radius: var(--badge-radius);
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .3px;
}

.badge-region {
  display: inline-block; padding: 2px 6px; border-radius: 4px;
  font-size: 10px; font-weight: 700; font-family: var(--mono);
  background: var(--nav-bg); color: var(--nav-text); letter-spacing: .5px;
}
/* Issue #1290: listener vs repeater badge on observers list + detail.
 * Driven by ObserverResp.can_relay (false = firmware reported repeat:off).
 * Server-side disambiguator excludes listener observers from path-hop
 * candidates; this badge surfaces the same hint to operators. Colors use
 * existing theme vars so the badge tracks the active palette. */
.badge-listener,
.badge-repeater {
  display: inline-block; padding: 1px 5px; border-radius: 4px;
  font-size: 10px; font-weight: 700; font-family: var(--mono);
  letter-spacing: .5px; margin-left: 4px; vertical-align: middle;
}
.badge-listener {
  background: var(--transport-badge-bg, #f59e0b20);
  color: var(--transport-badge-fg, #d97706);
}
.badge-repeater {
  background: var(--nav-bg); color: var(--nav-text);
}
/* Observer IATA pill rendered inline next to observer name on packets (#1188).
 * Visually similar to .badge-region but distinct so the row badge and the
 * inline-with-observer badge can be styled independently in future themes. */
.badge-iata {
  display: inline-block; padding: 1px 5px; border-radius: 4px;
  font-size: 10px; font-weight: 700; font-family: var(--mono);
  background: var(--nav-bg); color: var(--nav-text); letter-spacing: .5px;
  margin-left: 4px; vertical-align: middle;
}
/* TODO: expose --transport-badge-bg/fg in customizer THEME_CSS_MAP (tracked in future milestone) */
.badge-transport {
  display: inline-block; padding: 1px 5px; border-radius: 4px;
  font-size: 9px; font-weight: 700; font-family: var(--mono);
  background: var(--transport-badge-bg, #f59e0b20); color: var(--transport-badge-fg, #d97706);
  letter-spacing: .5px; vertical-align: middle;
  /* Region names can run long (e.g. "#dk-trekantsomraadet") — cap and
     ellipsis instead of blowing out the Type column; full name is
     always in the title attribute. */
  max-width: 90px; overflow: hidden; text-overflow: ellipsis;
  white-space: nowrap;
}
/* Transport-scoped but the region couldn't be resolved (no configured
   region matched, or an HMAC collision made the match ambiguous) —
   muted instead of the confident amber so it reads as "unresolved". */
.badge-transport-unknown {
  background: var(--text-muted-bg, #6b728020); color: var(--text-muted, #6b7280);
}
/* Dedicated Scope column pill (#71 Packets column). Reuses the
   badge-transport-unknown muted look for the "no match" state so it reads
   consistently with the inline T? pill on the Type column. */
.badge-scope {
  display: inline-block; padding: 1px 6px; border-radius: 4px;
  font-size: 10px; font-weight: 700; font-family: var(--mono);
  background: var(--transport-badge-bg, #f59e0b20); color: var(--transport-badge-fg, #d97706);
  letter-spacing: .3px;
}
.badge-scope-unknown {
  background: var(--text-muted-bg, #6b728020); color: var(--text-muted, #6b7280);
}
.badge-obs {
  display: inline-block; padding: 1px 6px; border-radius: 10px;
  font-size: 10px; font-weight: 600;
  background: #ede9fe; color: #6d28d9;
}
.multibyte-badge {
  color: var(--text);
  background: var(--accent-bg);
  font-size: 10px;
}
.pubkey-prefix-badge {
  background:var(--nav-bg);
  color:var(--nav-text);
  font-family:var(--mono)
}
/* === Monospace === */
.mono { font-family: var(--mono); font-size: 13px; font-weight: var(--fw-medium); } /* #1668 M3 — was 12px/inherit */

/* #1668 M3 — explicit floor for "Xs/Xm/Xd ago" timestamps used on every row
 * of /packets, /nodes, /live. Was inheriting 12px/400 (thin-small). */
.timestamp-text {
  font-size: 13px;
  font-weight: var(--fw-medium);
}

/* === Detail Panel === */
.detail-title {
  font-size: 15px; font-weight: 700; margin-bottom: 12px;
  padding-bottom: 8px; border-bottom: 2px solid var(--border);
  /* #1458 P0-A: semantic-first header — type badge + summary + hops share a row. */
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
}
.detail-title .detail-summary { color: var(--text-muted); font-weight: 400; }
.detail-srcdst {
  font-size: 14px; margin: -4px 0 12px; color: var(--text);
}
.detail-srcdst .arrow { color: var(--text-muted); margin: 0 4px; }
.detail-hash {
  font-family: var(--mono); font-size: 12px; color: var(--text-muted);
  margin-bottom: 12px; word-break: break-all;
}
.detail-meta {
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px 12px;
  margin-bottom: 16px; font-size: 13px;
}
.detail-meta dt { color: var(--text-muted); font-size: 11px; text-transform: uppercase; letter-spacing: .3px; }
.detail-meta dd { font-weight: 500; margin-bottom: 4px; }
/* #1281: 📍map link inside detail-meta — UA-default blue is unreadable on EMOJI-OK-COMMENT
 * dark backgrounds. Force theme-aware color via --accent. */
.loc-map-link { color: var(--link-color); font-size: 0.85em; text-decoration: none; }
.loc-map-link:hover { text-decoration: underline; }
.observation-current { background: var(--accent-bg, rgba(0,122,255,0.1)); font-weight: 600; }
.detail-obs-row:hover { background: var(--hover-bg, rgba(255,255,255,0.05)); }
.detail-obs-table th { font-size: 0.8em; text-transform: uppercase; color: var(--text-muted); }

/* === Hex Dump === */
.hex-dump {
  font-family: var(--mono); font-size: 11px; line-height: 1.8;
  padding: 12px; border-radius: 8px; background: #1e1e2e; color: #cdd6f4;
  overflow-x: auto; margin-bottom: 16px; word-break: break-all;
}
.hex-byte { padding: 1px 2px; border-radius: 2px; }
.hex-header { background: #f38ba8; color: #1e1e2e; }
.hex-pathlen { background: #fab387; color: #1e1e2e; }
.hex-transport { background: #89b4fa; color: #1e1e2e; }
.hex-path { background: #a6e3a1; color: #1e1e2e; }
.hex-payload { background: #f9e2af; color: #1e1e2e; }
.hex-pubkey { background: #f9e2af; color: #1e1e2e; }
.hex-timestamp { background: #fab387; color: #1e1e2e; }
.hex-signature { background: #f38ba8; color: #1e1e2e; }
.hex-flags { background: #94e2d5; color: #1e1e2e; }
.hex-lat, .hex-lon, .hex-location { background: #89b4fa; color: #1e1e2e; }
.hex-name { background: #cba6f7; color: #1e1e2e; }

.hex-legend {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; font-size: 11px;
}
.hex-legend span {
  display: inline-flex; align-items: center; gap: 4px;
}
.hex-legend .swatch {
  display: inline-block; width: 12px; height: 12px; border-radius: 2px;
}

/* === Field Breakdown Table === */
.field-table {
  width: 100%; border-collapse: collapse; font-size: 11px; margin-bottom: 12px;
}
.field-table th {
  text-align: left; padding: 6px 8px; background: var(--nav-bg); color: var(--nav-text);
  font-size: 11px; text-transform: uppercase; letter-spacing: .3px;
}
.field-table td {
  padding: 5px 8px; border-bottom: 1px solid var(--border);
}
.field-table .section-row td {
  background: var(--section-bg, #eef2ff); font-weight: 700; font-size: 11px;
  text-transform: uppercase; letter-spacing: .5px; color: var(--text);
}
.field-table .section-header td  { background: rgba(243,139,168,0.18); }
.field-table .section-transport td { background: rgba(137,180,250,0.18); }
.field-table .section-path td    { background: rgba(166,227,161,0.18); }
.field-table .section-payload td { background: rgba(249,226,175,0.18); }

/* === Path display === */
.path-hops {
  display: inline-flex; align-items: center; gap: 2px; font-family: var(--mono); font-size: 11px;
  /* #1122: never wrap; clip so a long hop chain cannot spill into the next row */
  flex-wrap: nowrap;
  max-width: 100%;
  max-height: 22px;
  overflow: hidden;
  vertical-align: middle;
}
.path-hops .hop { color: var(--link-color); line-height: 18px; }
/* #1668 M2 / operator-flagged chip: was `color:#fff; background:var(--accent)`
   = 2.75:1 on dark theme (BLOCKER). Now uses --accent-strong (#2563eb)
   with --text-on-accent (gray-50) for 4.83:1 — WCAG AA body pass in
   both themes. */
.path-hops .hop-named { color: var(--text-on-accent); background: var(--accent-strong); padding: 1px 6px; border-radius: 3px; font-family: var(--font); font-size: 12px; font-weight: 600; cursor: default; flex: 0 0 auto; max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; line-height: 18px; }
.path-hops .arrow { color: var(--text-muted); flex: 0 0 auto; line-height: 18px; }
/* #1122/#1128: bound the row height contributed by the path column.
 * `max-height` on a <td> is widely ignored by browsers (table layout
 * overrides it), so use `height` — table cells respect `height` as
 * min-height, locking the row to a single line of chip content
 * regardless of hop count. */
/* #1668 M3 r1 (tufte #4): preserve PATH column width after the table body
 * font bump (12 -> 13) widened sibling columns and squeezed PATH chips
 * from 7-9 visible chars down to 3-4. Reserve enough room for two
 * abbreviated 7-char chips + arrow. .path-hops already uses 11px font, so
 * no chip-level font change is needed here. */
.data-table td.col-path, .data-table th.col-path { min-width: 140px; }
.data-table td.col-path { height: 28px; line-height: 22px; overflow: hidden; }

/* === Modal === */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 200;
  display: flex; align-items: center; justify-content: center;
  padding: clamp(8px, 2vw, 24px); /* #1059: viewport-edge breathing room */
}
.modal {
  /* #1059: fluid via min(); cap height at 90vh; internal scroll.
     MINOR-6: dropped redundant `width: ...` — `max-width: min(90vw, 500px)`
     alone is sufficient to constrain the box (modals are auto-width within
     a flex centering container). */
  background: var(--card-bg); border-radius: 12px; padding: 24px;
  max-width: min(90vw, 500px);
  max-height: 90vh; overflow-y: auto;
  box-shadow: 0 16px 48px rgba(0,0,0,.2);
  /* Sticky-positioned descendants need a positioned ancestor. */
  position: relative;
}
.modal h3 { margin-bottom: 12px; }
.modal textarea {
  width: 100%; height: 120px; font-family: var(--mono); font-size: 13px;
  padding: 10px; border: 1px solid var(--border); border-radius: 6px;
  resize: vertical; margin-bottom: 12px;
}
.modal .btn-primary {
  background: var(--accent-strong); color: var(--text-on-accent); border: none; padding: 8px 20px;
  border-radius: 6px; cursor: pointer; font-size: 14px; font-weight: 600;
}
.modal .btn-primary:hover { background: var(--palette-blue-700, #1d4ed8); }
.modal .btn-close {
  background: none; border: 1px solid var(--border); padding: 8px 16px;
  border-radius: 6px; cursor: pointer; margin-left: 8px; font-size: 14px;
}

/* === #1059: Sticky close buttons (modal can scroll, close stays reachable).
   AC3 is a global contract — applies to ALL .modal users (BYOP, channels,
   any future modal). Two patterns covered:
     1. Sticky header pattern (.byop-modal): header pinned at top: 0 inside
        the scrollable .modal; close is a child, no extra positioning needed.
     2. Floating close pattern (.modal-close at top of .modal body):
        position: sticky on the close button itself.
   .ch-modal already uses position: absolute on a position: relative parent,
   which keeps the close visually pinned across content scroll — that pattern
   continues to satisfy AC3. */
.byop-modal .byop-header {
  position: sticky; top: 0; z-index: 2;
  background: var(--card-bg);
  /* #1487: was `margin: -24px -24px 12px; padding: 12px 24px;` — assumed
     .modal desktop padding of 24px. On mobile .modal switches to 16px
     padding, so the negative margin overshot, content-flow pushed the
     next sibling UP under the (sticky-pinned) header, and the
     description paragraph was visually occluded by ~12px. Drop the
     full-bleed negative-margin gymnastics — header now uses normal
     padding (modal padding handles the inset) and bounded sizing. */
  margin: 0 0 12px;
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  /* Hard cap so emoji ascent / btn-icon 48px floor can't blow the header
     past the safe range (was 73px pre-fix). */
  max-height: 48px;
  box-sizing: border-box;
}
.byop-modal .byop-header h3 {
  /* #1487: explicit font + line-height so emoji-bearing title doesn't
     blow up the header on platforms where the default emoji font has
     huge ascent metrics (observed contributor to 73px header). */
  margin: 0; font-size: 1rem; line-height: 1.3;
}
/* MINOR-7: dropped position: sticky on .byop-x — it sits inside the
   already-sticky .byop-header, so the sticky on the child was a no-op.
   We only need visual styling here.
   #1487: override .btn-icon 48px floor — inside the header we need a
   compact button so the header stays bounded. The :before tap-target
   pad below preserves accessibility (effective hit area ~ 44x44). */
.byop-modal .byop-x {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: 6px; padding: 2px 8px; cursor: pointer; font-size: 14px;
  line-height: 1; color: var(--text);
  min-height: 0; min-width: 0; height: 32px;
  position: relative;
}
/* #1487: invisible tap-pad to keep ≥44px effective hit area while the
   visual button stays compact inside the bounded header. */
.byop-modal .byop-x::before {
  content: ''; position: absolute; inset: -8px; border-radius: 8px;
}
.byop-modal .byop-x:hover { background: var(--row-hover, rgba(0,0,0,0.05)); }

/* MINOR-8: generic sticky-close for any .modal that uses a sibling .modal-close
   inside the scrollable box (no enclosing sticky header). Excludes
   .ch-modal-close which already uses position: absolute on a position:
   relative .ch-modal — that pattern already keeps the close pinned across
   internal scroll, so we don't override it. */
.modal > .modal-close:not(.ch-modal-close) {
  position: sticky; top: 0; z-index: 3; float: right;
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: 6px; padding: 4px 10px; cursor: pointer; font-size: 16px;
  line-height: 1; color: var(--text);
}
.modal > .modal-close:not(.ch-modal-close):hover { background: var(--row-hover, rgba(0,0,0,0.05)); }

/* #1648 M6 (M5 CDP carry-forward): mobile touch-target. The 4px/10px
   padding above produces an ~24px hit area, below WCAG's 44×44 minimum.
   Bump on ≤640px so dismiss is reliably tappable on phones. Applies to
   both the generic .modal-close and the channel-modal close. */
@media (max-width: 640px) {
  .modal > .modal-close:not(.ch-modal-close),
  .ch-modal-close {
    min-width: 44px; min-height: 44px;
    display: inline-flex; align-items: center; justify-content: center;
    padding: 8px 12px;
  }
}


/* === Map Controls Panel === */
.map-controls {
  /* #1059: fluid width via clamp() so controls scale with viewport but never
     exceed available room or go below a usable minimum. */
  position: absolute; top: 12px; right: 12px; z-index: 1000;
  background: var(--card-bg); border-radius: 10px; padding: 14px 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
  width: clamp(160px, 18vw, 240px);
  max-width: calc(100vw - 24px);
  font-size: 13px;
  max-height: calc(100% - 24px); overflow-y: auto;
  /* #1236: keep the scrollbar gutter reserved so the scroll affordance is
     visible even when content briefly fits — users get a consistent visual
     cue that the panel is scrollable. */
  scrollbar-gutter: stable;
}
/* #1236: sticky panel title so the scroll affordance is always visible at the
   top of the scroll container when content overflows on small viewports. */
.map-controls h3 {
  font-size: 15px;
  margin: -14px -16px 10px -16px;
  padding: 10px 16px;
  position: sticky;
  top: -14px;
  background: var(--card-bg);
  z-index: 2;
  border-bottom: 1px solid var(--border);
  border-radius: 10px 10px 0 0;
}
.mc-section { margin-bottom: 10px; }
.mc-label { font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .3px; color: var(--text-muted); margin-bottom: 4px; }
.mc-section label { display: block; padding: 2px 0; cursor: pointer; }
.mc-section select { width: 100%; padding: 4px 8px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; }
.mc-jumps { display: flex; flex-wrap: wrap; gap: 4px; }
.mc-jump-btn {
  padding: 3px 10px; border: 1px solid var(--border); border-radius: 4px;
  background: var(--input-bg); cursor: pointer; font-size: 12px; font-weight: 600;
}
.mc-jump-btn:hover { background: var(--row-hover); }
fieldset.mc-section { border: none; padding: 0; margin: 0 0 10px 0; min-width: 0; }
fieldset.mc-section legend.mc-label { padding: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* === Misc === */
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mb-8 { margin-bottom: 8px; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

/* === Channels Page === */
/* #1057: Fluid layout. .ch-layout is a container query root so the channels
   page can stack sidebar above main when the *available* layout width is
   narrow (independent of the global viewport — handles cases where the
   nav/side-pane consumes width). Sidebar uses clamp() for fluid sizing
   between a usable min (~220px) and a comfortable max (~320px) on wide
   screens; .ch-main keeps flex:1 so it absorbs remaining width including
   ultrawide. */
.ch-layout {
  display: flex; height: 100%; overflow: hidden;
  container-type: inline-size;
  container-name: chlayout;
}
.ch-sidebar {
  width: clamp(220px, 22vw, 320px);
  min-width: 220px;
  background: var(--card-bg);
  border-right: 1px solid var(--border); display: flex; flex-direction: column; overflow: hidden;
}
.ch-sidebar-header {
  padding: 8px 12px; border-bottom: 1px solid var(--border);
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
}
.ch-sidebar-title {
  display: flex; align-items: center; gap: 6px;
  font-size: 15px; font-weight: 700;
  flex: 1 1 auto; min-width: 0;
  /* Name dominates; no longer push other controls onto a new row */
  margin: 0;
}
.ch-header-region { margin: 0; padding: 0; flex: 0 0 auto; }
.ch-encrypted-toggle {
  display: flex; align-items: center; gap: 4px; font-size: 11px; color: var(--text-muted);
  cursor: pointer; user-select: none; margin-bottom: 4px;
}
.ch-encrypted-toggle input { margin: 0; cursor: pointer; }
.ch-toggle-label { white-space: nowrap; }
.ch-item.ch-encrypted { opacity: 0.55; }
.ch-item.ch-encrypted .ch-item-name { font-style: italic; }
.ch-icon { font-size: 20px; }
.ch-sidebar-controls { display: flex; align-items: center; gap: 6px; }
.ch-region-select {
  flex: 1; padding: 5px 8px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 12px; background: var(--input-bg); color: var(--text); font-family: var(--font);
}
.ch-gear-btn {
  background: none; border: 1px solid var(--border); border-radius: 6px;
  padding: 4px 8px; cursor: pointer; font-size: 14px;
}
.ch-gear-btn:hover { background: var(--row-hover); }
.ch-channel-list { flex: 1; overflow-y: auto; }
button.ch-item {
  display: flex; align-items: center; gap: 12px; padding: 12px 16px;
  cursor: pointer; transition: background .12s; border: none; border-bottom: 1px solid var(--border);
  background: transparent; width: 100%; text-align: left; color: var(--text);
  font-family: inherit; font-size: inherit; line-height: inherit;
  -webkit-tap-highlight-color: rgba(0,0,0,.08);
  touch-action: manipulation;
}
button.ch-item:hover { background: var(--row-hover); }
button.ch-item:active { background: var(--selected-bg); }
button.ch-item.selected { background: var(--selected-bg); }
.ch-badge {
  width: 40px; height: 40px; min-width: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 13px; letter-spacing: .3px;
}
.ch-item-body { flex: 1; min-width: 0; }
.ch-item-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 2px; }
.ch-item-name { font-weight: 600; font-size: 14px; }
.ch-item-time { font-size: 12px; font-weight: var(--fw-medium); color: var(--text-muted); white-space: nowrap; } /* #1668 M3 — was 11px/400 */
.ch-unread-badge {
  display: inline-block;
  min-width: 18px;
  padding: 1px 6px;
  margin-left: 4px;
  background: var(--accent, #3b82f6);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  border-radius: 9px;
  text-align: center;
  line-height: 1.4;
}
/* Shared icon button base for sidebar row controls (remove ✕, share ⤴). EMOJI-OK-COMMENT
   WCAG 2.5.5 / Apple HIG: 44x44 CSS px minimum touch target. */
.ch-icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: none; border: none; color: var(--text-muted);
  cursor: pointer; padding: 4px; margin-left: 2px;
  min-width: 44px; min-height: 44px; box-sizing: border-box;
  opacity: 0.55; transition: opacity 0.15s, color 0.15s;
  line-height: 1; user-select: none;
}
.ch-remove-btn {
  font-size: 14px;
  background: var(--statusRed, #b54a4a);
  color: white;
  border-radius: 4px;
  padding: 4px 8px;
  font-weight: bold;
  opacity: 0.9;
}
.ch-share-btn  { font-size: 13px; padding: 4px 8px; }
button.ch-item:hover .ch-icon-btn { opacity: 1; }
.ch-icon-btn:hover, .ch-icon-btn:focus { opacity: 1 !important; outline: none; }
.ch-remove-btn:hover, .ch-remove-btn:focus { background: #8b3838; color: white; }
.ch-share-btn:hover,  .ch-share-btn:focus  { color: var(--link-color, #3b82f6); }
.ch-user-badge { font-size: 12px; font-weight: var(--fw-medium); margin-left: 2px; opacity: 0.85; flex-shrink: 0; } /* #1668 M3 r1 — chip floor, mirror row chips (adv #2) */
.ch-item-preview { font-size: 13px; font-weight: var(--fw-medium); color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; } /* #1668 M3 — was 12px/400 */

.ch-main { flex: 1; display: flex; flex-direction: column; overflow: hidden; position: relative; }

/* Sidebar resize handle (#89) */
.ch-sidebar-resize {
  position: absolute; top: 0; right: -3px; width: 6px; height: 100%;
  cursor: col-resize; z-index: 10; background: transparent;
}
.ch-sidebar-resize:hover { background: var(--accent); opacity: 0.3; }
.ch-sidebar { position: relative; }
.ch-main-header {
  padding: 14px 20px; font-size: 16px; font-weight: 700;
  border-bottom: 1px solid var(--border); background: var(--card-bg);
  display: flex; align-items: center; gap: 8px;
}
.ch-back-btn {
  display: none; background: none; border: none; font-size: 22px; cursor: pointer;
  color: var(--text); padding: 8px 12px; border-radius: 4px;
  align-items: center; justify-content: center;
  min-width: 44px; min-height: 44px;
  -webkit-tap-highlight-color: rgba(0,0,0,.08);
  touch-action: manipulation;
}
.ch-back-btn:hover { background: var(--row-hover); }
.ch-header-text { flex: 1; }
.ch-messages {
  flex: 1; overflow-y: auto; padding: 16px 20px; display: flex; flex-direction: column; gap: 16px;
  background: var(--content-bg);
}
.ch-empty, .ch-loading { color: var(--text-muted); text-align: center; padding: 40px; font-size: 14px; margin: auto; }
.ch-msg { display: flex; gap: 12px; }
.ch-avatar {
  width: 36px; height: 36px; min-width: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 15px; margin-top: 2px;
}
.ch-msg-content { flex: 1; min-width: 0; }
.ch-msg-sender { font-weight: 600; font-size: 13px; margin-bottom: 4px; }
.ch-msg-bubble {
  background: var(--surface-1); color: var(--text); padding: 10px 14px; border-radius: 4px 12px 12px 12px;
  font-size: 14px; line-height: 1.5; word-break: break-word; display: inline-block; max-width: 100%;
  border: 1px solid var(--border);
}
.ch-mention { color: var(--link-color); font-weight: 600; }
.ch-encrypted-text { font-size: 11px; color: var(--text-muted); }
.ch-msg-meta { font-size: 11px; color: var(--text-muted); margin-top: 4px; }
.ch-analyze-link { color: var(--link-color); text-decoration: none; margin-left: 8px; }
.ch-analyze-link:hover { text-decoration: underline; }
.ch-scroll-btn {
  position: absolute; bottom: 16px; right: 24px; background: var(--accent); color: #fff;
  border: none; border-radius: 20px; padding: 8px 16px; font-size: 12px; font-weight: 600;
  cursor: pointer; box-shadow: 0 2px 8px rgba(0,0,0,.2); z-index: 10;
}
.ch-scroll-btn:hover { background: var(--accent-hover); }
.ch-scroll-btn.hidden { display: none; }

/* Clickable sender names */
.ch-sender-link { cursor: pointer; text-decoration: none; }
.ch-sender-link:hover { text-decoration: underline; }
.ch-avatar { cursor: pointer; }

/* Node tooltip (hover) */
.ch-node-tooltip {
  position: fixed; z-index: 1000; background: var(--card-bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 14px; box-shadow: 0 4px 16px rgba(0,0,0,.15);
  min-width: 180px; max-width: 260px;
}
.ch-tooltip-name { font-weight: 700; font-size: 14px; margin-bottom: 4px; }
.ch-tooltip-role { font-size: 12px; color: var(--text-muted); margin-bottom: 2px; }
.ch-tooltip-meta { font-size: 11px; color: var(--text-muted); }
.ch-tooltip-key { font-size: 10px; color: var(--text-muted); margin-top: 4px; }

/* Node detail panel (slide from right) */
.ch-node-panel {
  position: absolute; top: 0; right: 0; bottom: 0; width: 320px; max-width: 80%;
  background: var(--card-bg); border-left: 1px solid var(--border);
  box-shadow: -4px 0 16px rgba(0,0,0,.1); z-index: 20;
  transform: translateX(100%); transition: transform .2s ease;
  overflow-y: auto; display: flex; flex-direction: column;
}
.ch-node-panel.open { transform: translateX(0); }
.ch-node-panel-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 16px; border-bottom: 1px solid var(--border); position: sticky; top: 0;
  background: var(--card-bg); z-index: 1;
}
.ch-node-close {
  background: none; border: none; font-size: 18px; cursor: pointer; color: var(--text-muted);
  width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  border-radius: 4px;
}
.ch-node-close:hover { background: var(--row-hover); color: var(--text); }
.ch-node-panel-body { padding: 16px; flex: 1; }
.ch-node-field { font-size: 13px; margin-bottom: 8px; }
.ch-node-label { display: block; font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .3px; margin-bottom: 2px; }
.ch-node-adverts { margin-top: 12px; }
.ch-node-advert { font-size: 12px; color: var(--text-muted); padding: 4px 0; border-bottom: 1px solid var(--border); }
.ch-node-link { display: inline-block; margin-top: 12px; color: var(--link-color); text-decoration: none; font-size: 13px; }
.ch-node-link:hover { text-decoration: underline; }

/* === Nodes Page === */
.nodes-page { display: flex; flex-direction: column; height: 100%; }
.nodes-page .split-layout { flex: 1; min-height: 0; }
.nodes-topbar {
  padding: 12px 16px; display: flex; align-items: center; gap: 16px;
  border-bottom: 1px solid var(--border); background: var(--card-bg); flex-shrink: 0;
}
.nodes-search {
  flex: 1; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 13px; background: var(--input-bg); color: var(--text); font-family: var(--font);
}
.nodes-counts { display: flex; gap: 8px; flex-shrink: 0; }
.node-count-pill {
  display: inline-block; padding: 3px 10px; border-radius: 12px;
  font-size: 12px; font-weight: 600; color: #fff; white-space: nowrap;
}
.nodes-tabs-bar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px; flex-wrap: wrap; gap: 8px;
}
.nodes-tabs { display: flex; gap: 2px; }
.node-tab {
  padding: 7px 16px; border: none; background: none; cursor: pointer;
  font-size: 13px; font-weight: 500; color: var(--text-muted); border-bottom: 2px solid transparent;
  font-family: var(--font); transition: all .15s;
}
.node-tab:hover { color: var(--text); }
.node-tab.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }
.nodes-filters { display: flex; gap: 8px; align-items: center; }
.nodes-filters select {
  padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 13px; background: var(--input-bg); color: var(--text); font-family: var(--font);
  height: 34px; min-height: 34px; box-sizing: border-box; line-height: 1;
}

/* Node Detail */
.node-detail { padding: 4px 0; }
.node-detail-name { font-size: 20px; font-weight: 700; margin: 12px 0 4px; }
.node-detail-role { margin-bottom: 12px; }
.node-detail-section {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 12px; margin-bottom: 8px;
}
/* Bug 7 fix: neighbor table text inherits accent color — force readable text */
.node-detail-section .data-table td,
.node-full-card .data-table td {
  color: var(--text);
}
.node-detail-section .data-table td a,
.node-full-card .data-table td a {
  color: var(--accent);
}
/* #1146: "Paths Through This Node" entries render as <div> blocks, not
   tables, so the rule above doesn't reach them. Without this, the path-hop
   <a> elements inherit the UA-default rgb(0,0,238) blue, which on the dark
   card surface (--card-bg: #232340 in dark mode) computes to ~2.5-3.5:1 — well below
   the 4.5:1 WCAG AA body-text minimum. Use --accent so the link tracks the
   active theme (and customizer overrides) like the data-table links do. */
.node-detail-section #pathsContent a,
.node-full-card #fullPathsContent a {
  color: var(--accent);
}
.node-detail-section #pathsContent a:hover,
.node-full-card #fullPathsContent a:hover {
  color: var(--accent-hover);
}
.node-detail-section h4 {
  font-size: 12px; text-transform: uppercase; letter-spacing: .5px;
  color: var(--text-muted); margin-bottom: 8px; padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}
.node-detail-key {
  font-size: 11px; word-break: break-all; color: var(--text-muted);
  background: var(--row-stripe); padding: 6px 8px; border-radius: 4px; margin-bottom: 8px;
}
.node-map-container { margin-bottom: 8px; }
.qr-placeholder { text-align: center; padding: 12px; }
.qr-box {
  width: 120px; height: 120px; margin: 0 auto; border: 2px dashed var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 13px; border-radius: 8px;
}
.btn-primary {
  background: var(--accent); color: #fff; border: none; padding: 8px 20px;
  border-radius: 6px; cursor: pointer; font-size: 13px; font-weight: 600;
  transition: background .15s;
}
.btn-primary:hover { background: var(--accent-hover); }

/* Advert Timeline */
.advert-entry {
  display: flex; align-items: flex-start; gap: 10px; padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.advert-entry:last-child { border-bottom: none; }
.advert-dot {
  width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; margin-top: 4px;
}
/* #829: explicit color so text stays readable when inherited color matches card-bg */
.advert-info { font-size: 12px; line-height: 1.5; color: var(--text); }
.advert-info a { color: var(--link-color); }

/* === Traces Page === */
.traces-page { padding: 16px; max-width: var(--trace-max-width, 95vw); margin: 0 auto; }
.trace-search {
  display: flex; gap: 8px; margin-bottom: 20px;
}
.trace-search input {
  flex: 1; padding: 10px 14px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 14px; font-family: var(--mono); background: var(--input-bg); color: var(--text);
}
.trace-empty { text-align: center; padding: 40px; color: var(--text-muted); font-size: 14px; }
.trace-summary {
  display: flex; gap: 16px; margin-bottom: 20px; flex-wrap: wrap;
}
.trace-stat {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 14px 20px; text-align: center; flex: 1; min-width: 120px;
}
.trace-stat-value { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.trace-stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); }
.trace-section {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 16px; margin-bottom: 16px;
}
.trace-section h3 { font-size: 14px; font-weight: 700; margin-bottom: 12px; }

/* Path Visualization */
.trace-path-viz {
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
  padding: 12px; background: var(--nav-bg); border-radius: 6px; margin-bottom: 8px;
}
.trace-path-hop {
  display: inline-block; padding: 4px 10px; background: var(--accent); color: #fff;
  border-radius: 4px; font-family: var(--mono); font-size: 12px; font-weight: 600;
}
.trace-path-arrow { color: var(--text-muted); font-size: 16px; }
.trace-path-label { color: var(--text-muted); font-size: 12px; font-style: italic; }
.trace-path-info { font-size: 12px; color: var(--text-muted); }

/* Timeline */
.tl-header {
  display: grid; grid-template-columns: 160px 1fr 70px 70px 70px;
  gap: 8px; font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: .3px; color: var(--text-muted); padding-bottom: 6px;
  border-bottom: 1px solid var(--border); margin-bottom: 4px;
}
.tl-row {
  display: grid; grid-template-columns: 160px 1fr 70px 70px 70px;
  gap: 8px; align-items: center; padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.tl-observer { font-size: 12px; font-family: var(--mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tl-bar-container {
  position: relative; height: 16px; background: var(--border); border-radius: 8px;
}
.tl-marker {
  position: absolute; top: 2px; width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent); transform: translateX(-50%);
  box-shadow: 0 0 6px rgba(74, 158, 255, .5);
}
.tl-delta { font-size: 11px; color: var(--text-muted); text-align: right; }
.tl-snr { font-size: 12px; font-weight: 600; text-align: right; }
.tl-snr.good { color: var(--status-green); }
.tl-snr.ok { color: var(--status-yellow); }
.tl-snr.bad { color: var(--status-red); }
.tl-rssi { font-size: 12px; color: var(--text-muted); text-align: right; }

/* === Scrollbar === */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* === Observers Page === */
.observers-page { padding: 20px; margin: 0 auto; }
.obs-summary { display: flex; gap: 20px; margin-bottom: 16px; flex-wrap: wrap; }
.obs-stat { display: flex; align-items: center; gap: 6px; font-size: 14px; color: var(--text-muted); }
/* #1562 — "Last updated: X ago" pill on the observers-page header.
   Clickable (forces a fresh fetch / bypasses client cache). Goes to
   --warning when the cached payload is >60s old so operators see staleness. */
.obs-updated { cursor: pointer; font-size: 13px; color: var(--text-muted); border: 1px dashed transparent; padding: 2px 6px; border-radius: 4px; }
.obs-updated:hover, .obs-updated:focus { border-color: var(--border); outline: none; }
.obs-updated-stale { color: var(--status-yellow); border-color: var(--status-yellow); }
.health-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; flex-shrink: 0; }
.health-dot.health-green { background: var(--status-green); box-shadow: 0 0 6px #22c55e80; }
.health-dot.health-yellow { background: var(--status-yellow); box-shadow: 0 0 6px #eab30880; }
.health-dot.health-red { background: var(--status-red); box-shadow: 0 0 6px #ef444480; }
.obs-table td:first-child { white-space: nowrap; }
.obs-table td:nth-child(6) { max-width: none; overflow: visible; }
.col-observer { min-width: 70px; max-width: none; }
.col-scope { min-width: 60px; max-width: 110px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.spark-bar { position: relative; min-width: 60px; max-width: 100px; flex: 1; height: 18px; background: var(--border); border-radius: 4px; overflow: hidden; display: inline-block; vertical-align: middle; }
@media (max-width: 640px) { .spark-bar { max-width: 60px; } }
.spark-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-hover, #60a5fa)); border-radius: 4px; transition: width 0.3s; }
.spark-label { position: absolute; right: 4px; top: 0; line-height: 18px; font-size: 11px; color: var(--text); font-weight: 500; }

/* === Dark mode input overrides === */
[data-theme="dark"] .filter-bar input,
[data-theme="dark"] .filter-bar select,
[data-theme="dark"] .nodes-search,
[data-theme="dark"] .ch-region-select,
[data-theme="dark"] .nodes-filters select,
[data-theme="dark"] .trace-search input,
[data-theme="dark"] .mc-jump-btn,
[data-theme="dark"] .filter-bar .btn { background: var(--input-bg); color: var(--text); border-color: var(--border); }
[data-theme="dark"] .filter-bar .btn.active { background: var(--accent-strong); color: var(--text-on-accent); border-color: var(--accent-strong); }
[data-theme="dark"] .ch-item.selected,
[data-theme="dark"] .data-table tbody tr.selected { background: var(--selected-bg); }
[data-theme="dark"] .tl-bar-container { background: #334155; }
[data-theme="dark"] .spark-bar { background: #334155; }
[data-theme="dark"] .spark-label { color: #e2e8f0; }
[data-theme="dark"] .hex-dump { border: 1px solid var(--border); }
[data-theme="dark"] .mc-jump-btn { background: var(--surface-2); color: var(--text); }

/* === Search Overlay === */
.search-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 300;
  display: flex; align-items: flex-start; justify-content: center; padding-top: 80px;
}
.search-overlay.hidden { display: none; }
.search-box {
  background: var(--card-bg); border-radius: 12px; width: 560px; max-width: 90vw;
  box-shadow: 0 16px 48px rgba(0,0,0,.3); overflow: hidden;
}
.search-box input {
  width: 100%; padding: 16px 20px; border: none; font-size: 16px;
  background: var(--card-bg); color: var(--text); font-family: var(--font);
  outline: none; border-bottom: 1px solid var(--border);
}
.search-results { max-height: 400px; overflow-y: auto; }
.search-result-item {
  padding: 10px 20px; cursor: pointer; font-size: 13px;
  border-bottom: 1px solid var(--border); transition: background .1s;
}
.search-result-item:hover { background: var(--row-hover); }
.search-result-type { font-size: 10px; font-weight: 700; text-transform: uppercase; color: var(--link-color); margin-right: 8px; }
.search-no-results { padding: 20px; text-align: center; color: var(--text-muted); font-size: 14px; }

/* === Loading States & Transitions (M16) === */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  background: linear-gradient(90deg, var(--border) 25%, var(--row-hover) 50%, var(--border) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: 4px;
}
.skeleton-line { height: 14px; margin-bottom: 10px; }
.skeleton-line.short { width: 60%; }
.skeleton-line.shorter { width: 40%; }
.skeleton-table-row { display: flex; gap: 12px; padding: 8px 10px; border-bottom: 1px solid var(--border); }
.skeleton-table-cell { height: 16px; flex: 1; }
.skeleton-table-cell.narrow { max-width: 80px; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.page-enter { animation: fadeIn 150ms ease-out; }

.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 60px 20px; color: var(--text-muted); }
.empty-state-icon { font-size: 48px; margin-bottom: 12px; opacity: 0.5; }
.empty-state-text { font-size: 15px; font-weight: 500; margin-bottom: 4px; }
.empty-state-hint { font-size: 13px; }

/* === M17 Visual Juice === */
@keyframes row-flash {
  0% { background: rgba(74, 158, 255, 0.25); }
  100% { background: transparent; }
}
.data-table tbody tr.new-row { animation: row-flash 800ms ease-out; }

.data-table th.sortable { cursor: pointer; user-select: none; }
.data-table th.sortable:hover { color: var(--link-color); }
.data-table th.sort-active { color: var(--link-color); }
.data-table th .sort-arrow { font-size: 10px; margin-left: 4px; opacity: 0.7; }
.data-table tbody tr { border-left: 3px solid transparent; transition: border-color 0.15s, background 0.15s; }
.data-table tbody tr:hover { border-left-color: var(--accent); }

.badge { transition: transform 0.15s ease; }
.badge:hover { transform: scale(1.05); }

@keyframes slideInRight { from { transform: translateX(20px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
.panel-right:not(.empty) { animation: slideInRight 200ms ease-out; }

/* === Hamburger (hidden on desktop) === */
.hamburger { display: none; }
/* "More" button (hidden on desktop) */
.nav-more-wrap { display: none; position: relative; }
.nav-more-btn { display: inline-flex; }
/* #1406: position:fixed (not absolute) so the dropdown escapes .nav-more-wrap's
   layout box. When absolute, the dropdown's content extents inflated
   .nav-more-wrap.scrollHeight → bubbled into .nav-left flex line-height calc
   → centered a 279px content line in 52px container → entire nav strip clipped
   above viewport. position:fixed removes the dropdown from flow entirely; JS in
   app.js positions top/right dynamically relative to the More button. */
.nav-more-menu {
  display: none; position: fixed; right: 0; top: 0;
  background: var(--nav-bg); border: 1px solid var(--border); border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15); flex-direction: column;
  min-width: 160px; padding: 4px 0; z-index: 1200;
}
.nav-more-menu.open { display: flex; }
.nav-more-menu .nav-link {
  padding: 10px 16px; border-bottom: none; border-radius: 0; margin: 0;
  white-space: nowrap;
}
.nav-more-menu .nav-link:hover { background: var(--nav-bg2); color: var(--nav-text); }
.nav-more-menu .nav-link.active { background: var(--nav-active-bg); }
/* Ensure nav stays above Leaflet map */
.nav-links.open { z-index: 1100; }
#map-wrap .leaflet-container { z-index: 1; }

/* === Responsive — Tablet (≤900px) === */
@media (max-width: 900px) {
  .panel-right { width: 320px; min-width: 320px; }
  .nav-stats { display: none; }
  /* #1450 — same svg/img split at tablet width */
  svg.brand-logo { height: 32px; width: 112px; }
  img.brand-logo { height: 32px; width: auto; max-width: 180px; }
  .nav-link { padding: 14px 8px; font-size: 13px; }
  .map-controls { width: 180px; font-size: 12px; }
}

/* === Responsive — Mobile (≤400px) ===
   At narrow viewports the inline wordmark SVG (intrinsic 111px content)
   clips when squeezed into the 99px tablet pin (#1137 → SCOPE→SCOF).
   Swap to the dedicated .brand-mark-only inline SVG (arcs+dots only). */
@media (max-width: 400px) {
  /* #1450 — must match the svg/img specificity used at top-level
     (svg.brand-logo / img.brand-logo, 0,1,1) or the new rules win
     and the wordmark fails to hide on narrow mobile widths. */
  svg.brand-logo, img.brand-logo { display: none; }
  .brand-mark-only { display: block; }
}

/* #1057: Container query — stack the channels layout when the channels
   page itself is narrow (e.g. on tablets, or when a side panel consumes
   width). Below ~700px of *container* inline size, sidebar drops to full
   width and stacks above the message area instead of squeezing it. */
@container chlayout (max-width: 700px) {
  .ch-layout { flex-direction: column; }
  .ch-sidebar {
    width: 100%; min-width: 0;
    max-height: 40%;
    overflow-y: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .ch-sidebar-resize { display: none; }
  .ch-main { width: 100%; }
}

/* === Nav Priority+ — JS-driven measurement (Issue #1102) ===
   Above the mobile hamburger breakpoint we render ALL nav links inline
   by default. A small JS pass in app.js (applyNavPriority) measures the
   actual fit and adds .is-overflow to whichever links don't fit, then
   moves them into the "More ▾" overflow menu. Pure CSS can't do this
   correctly because we want every link visible at 2560px+ but only the
   high-priority ones at 800px — and the breakpoint where each link
   drops depends on its label width, the gutters, the active-link
   padding, and the nav-stats badge. JS measurement is the only correct
   answer. data-priority="high" links are pinned to the left via
   order:-1 and are kept inline as long as possible (low-priority links
   overflow first). Spacing/type still use #1054 fluid clamp() tokens. */
@media (min-width: 768px) {
  .nav-links { display: flex !important; flex-direction: row; gap: var(--space-xs); }
  .nav-more-wrap { display: flex; align-items: center; }
  .hamburger { display: none; }
  .nav-link { padding: 14px clamp(8px, 0.6vw + 4px, 14px); font-size: var(--fs-sm); }
  .nav-links a[data-priority="high"] { order: -1; }
  .nav-link.active { background: var(--nav-active-bg); border-radius: 6px; margin: 4px 0; padding: 10px clamp(8px, 0.6vw + 4px, 14px); }
  /* JS-managed: links assigned .is-overflow get hidden inline; the
     "More ▾" wrap is hidden when nothing overflows. */
  .nav-links .nav-link.is-overflow { display: none; }
  .nav-more-wrap.is-hidden { display: none !important; }
}

/* === Nav narrow-desktop tightening (Issue #1055 — 1024px overlap fix) ===
   Between 768px and ~1100px, even with Priority+ collapsed to 5 high
   links + "More ▾" + 4 nav-right buttons + nav-stats, the row doesn't
   fit and the rightmost visible link overlaps nav-right by ~20px.
   Hide nav-stats and tighten nav-link padding/gap in this band;
   nav-stats reappears at ≥1101px where there is room for it.
   NOTE: this block MUST follow the (min-width: 768px) Priority+ block
   above so its tighter padding/gap rules win the cascade by source
   order at 1024px (same specificity). */
@media (min-width: 768px) and (max-width: 1100px) {
  .nav-stats { display: none; }
  .nav-links { gap: 0; }
  .nav-link { padding: 14px 6px; }
  .nav-link.active { padding: 10px 6px; }
  .nav-right { gap: 4px; }
}

/* === Responsive — Hamburger nav (<768px) === */
@media (max-width: 767px) {
  .hamburger { display: inline-flex; }
  .nav-more-wrap { display: none !important; }
  .nav-links {
    /* Issue #1109: was position:absolute. The containing block becomes
       .top-nav (the nearest positioned ancestor: position:sticky), which
       has `overflow:hidden; height:52px` since #1066 to guard against
       horizontal overflow during the Priority+ measurement pass. That
       guard clipped this dropdown invisibly below the navbar. Switching
       to position:fixed escapes any overflow:hidden ancestor (containing
       block becomes the viewport) without relaxing the #1066 desktop
       overflow guard. */
    display: none; position: fixed; top: 52px; left: 0; right: 0;
    background: var(--nav-bg); flex-direction: column; padding: 8px 0;
    box-shadow: 0 8px 24px rgba(0,0,0,.4); z-index: 1100;
    max-height: calc(100dvh - 52px); overflow-y: auto;
  }
  .nav-links a:not([data-priority="high"]) { display: flex; }
  .nav-links.open { display: flex; }
  .nav-link { padding: 12px 20px; border-bottom: none; }
  /* Issue #1400: restore 48px touch-target on mobile only. Global rule
     removed because it overflowed the 52px desktop top-nav. */
  .nav-link { min-height: 48px; }
  .nav-link.active { background: var(--nav-active-bg); border-radius: 0; margin: 0; padding: 12px 20px; }
  .nav-left { gap: 12px; }
  body.nav-open { overflow: hidden; }
}

/* === Responsive — Mobile (≤640px) === */
@media (max-width: 640px) {
  .nav-right { gap: 4px; }

  /* Layouts: stack instead of side-by-side */
  .split-layout { flex-direction: column; overflow-y: auto; }
  .panel-left { padding: 6px; flex: 1; min-height: 0; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .panel-right { display: none; }

  /* Channels: stack sidebar above message area on narrow viewports.
     #1057 follow-up: container query alone was being overridden here by
     the previous Discord-overlay rule (flex-direction:row + absolute
     positioning), so the layout failed to stack at 480px. Use a plain
     stacking layout that the E2E test recognizes (sidebar.bottom <=
     main.top). */
  .ch-layout { flex-direction: column; position: relative; }
  .ch-sidebar {
    width: 100%; min-width: 0; max-height: 40%; height: auto;
    overflow-y: auto;
    border-right: none; border-bottom: 1px solid var(--border);
    background: var(--card-bg);
  }
  .ch-sidebar-resize { display: none; }
  .ch-main {
    width: 100%; flex: 1; min-height: 0;
    background: var(--content-bg);
  }
  .ch-back-btn { display: flex; }
  .ch-main-header { display: flex; align-items: center; gap: 8px; }

  /* #1224 Channels mobile UX: compact header, dominant channel name,
     icon-only row actions, smaller empty state. */
  .ch-sidebar-header {
    padding: 6px 10px; gap: 6px;
    max-height: 56px;
  }
  .ch-sidebar-title { font-size: 14px; }
  .ch-sidebar-title .ch-icon { font-size: 16px; }
  .ch-add-channel-btn { padding: 4px 8px; font-size: 12px; }
  .ch-analytics-link { padding: 3px 7px; font-size: 13px; }
  /* Region filter shows just its compact pills/dropdown trigger in the header. */
  .ch-header-region .region-filter-bar { padding: 0; gap: 4px; }
  .ch-header-region .region-pill { padding: 2px 6px; font-size: 11px; }
  .ch-header-region .region-dropdown-trigger { padding: 3px 6px; font-size: 11px; }

  /* Channel list row: name must dominate. The inline share/remove icons
     were eating >88px because of their 44x44 touch target — push them
     onto a per-row reveal pattern: show a single ⋮ trigger that toggles
     the action set. Until then, shrink them to icon-only and let the
     name grow via flex:1. */
  #chList .ch-item { padding: 10px 12px; gap: 10px; }
  #chList .ch-item-name { flex: 1 1 auto; min-width: 0; }
  #chList .ch-item-top { gap: 6px; }
  #chList .ch-icon-btn { min-width: 32px; min-height: 32px; padding: 2px 4px; }
  /* #1648 M5: share-btn now renders an inline <svg.ph-icon> from channels.js,
   * so the legacy `font-size: 0` + `::before { content: '<emoji>' }` shim is
   * obsolete. The icon-button class above already sets the touch target;
   * the SVG inherits color via currentColor. */
  #chList .ch-share-btn .ph-icon { font-size: 13px; }
  #chList .ch-share-btn { font-size: 0; }
  #chList .ch-share-btn .ph-icon, #chList .ch-share-btn svg { font-size: 13px; }
  #chList .ch-remove-btn { font-size: 12px; padding: 2px 6px; }
  /* Mobile-narrow timestamp — #1668 M3 chip floor (12px+500 carries from base) */
  #chList .ch-item-time { font-size: 12px; }

  /* Empty state must not dominate. */
  .ch-empty { padding: 12px; font-size: 13px; max-height: 30vh; }

  /* Tables: smaller text for mobile — #1668 M3 chip floor (12px+500) */
  .data-table { font-size: 12px; min-width: 0; }
  .data-table td { padding: 5px 4px; max-width: 100px; }
  .data-table th { padding: 5px 4px; font-size: 10px; }
  .data-table .col-time { min-width: 64px; }
  .panel-left { overflow-x: auto; }

  /* #1770: packets-view virtual-scroller assumes constant row height
     (VSCROLL_ROW_HEIGHT). The base rule at ~L1097 sets
     `.data-table td.col-details { white-space: normal; word-break: break-word }`
     which lets the "Details" cell wrap on narrow viewports, producing
     variable row heights → visible jitter when scrolling past ~900px on
     iOS. Quick-fix (S path): clamp the cell to a single line on mobile.
     The proper L-path fix (per-row measurement) tracks separately.

     v2 (#1805 follow-up): the clamp lives on an INNER `.col-details-clip`
     wrapper, not the `<td>` itself. Reason: with `white-space: nowrap` on
     the td and `table-layout: auto`, the cell's min-content becomes the
     full single-line text width, blowing past the `max-width: 100px`
     mobile hint. Rows then grow wider than the 360px viewport — which
     breaks `test-gestures-1062-e2e.js` (a)/(h) because the swipe coords
     fall outside the viewport and `elementFromPoint` no longer hits the
     row. Inline-block + fixed `max-width` on the clip caps the column's
     preferred width so the row stays viewport-bounded and gestures work. */
  .data-table td.col-details > .col-details-clip {
    display: inline-block;
    max-width: 140px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    vertical-align: bottom;
  }

  /* Filters: collapse on mobile */
  .filter-bar { flex-direction: row; flex-wrap: wrap; gap: 4px; }
  .filter-toggle-btn { display: inline-flex !important; }
  .filter-bar > *:not(.filter-toggle-btn):not(.col-toggle-wrap) { display: none; }
  /* Must match :not() specificity of the hide rule above, otherwise .filters-expanded loses
     the specificity battle and filter children stay hidden (see issue #534). */
  .filter-bar.filters-expanded > *:not(.filter-toggle-btn):not(.col-toggle-wrap) { display: inline-flex; }
  .filter-bar.filters-expanded > .col-toggle-wrap { display: inline-block; }
  .filter-bar.filters-expanded input { width: 100%; }
  .filter-bar.filters-expanded select { width: 100%; }
  .filter-group { flex-wrap: wrap; }
  .filter-group + .filter-group { border-left: none; padding-left: 0; margin-left: 0; }
  .filter-bar .btn { min-height: 36px; }
  .node-filter-wrap { width: 100%; }

  /* Nodes */
  .nodes-topbar { flex-direction: column; gap: 8px; padding: 10px; }
  .nodes-tabs-bar { flex-direction: column; }
  .nodes-counts { flex-wrap: wrap; }
  .node-count-pill { font-size: 11px; padding: 2px 8px; }

  /* Traces */
  .trace-summary { flex-direction: column; }
  .tl-header, .tl-row { grid-template-columns: 100px 1fr 50px 50px 50px; gap: 4px; font-size: 11px; }

  /* Search overlay: full width */
  .search-box { width: 95vw; }
  .search-overlay { padding-top: 60px; }

  /* Map controls — #1329: drop fixed 200px cap, use accordion sections
     instead so visible content fits without internal scrolling. Panel can
     grow to fill available height; max-height bound by viewport so it
     never escapes the screen. */
  .map-controls { width: calc(100vw - 24px); right: 12px; top: 8px; max-height: calc(100vh - 80px); font-size: 12px; padding: 10px 12px; }
  /* On mobile, hide collapsed section bodies (everything inside the
     fieldset except the legend). The legend remains tappable to expand. */
  .map-controls fieldset.mc-section.mc-collapsed > *:not(legend) { display: none; }
  .map-controls fieldset.mc-section > legend.mc-label {
    cursor: pointer;
    user-select: none;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 0;
  }
  /* ▸ / ▾ indicator via ::after so we don't touch markup */
  .map-controls fieldset.mc-section > legend.mc-label::after {
    content: '▾';
    font-size: 10px;
    color: var(--text-muted);
    margin-left: 8px;
    transition: transform 0.15s;
  }
  .map-controls fieldset.mc-section.mc-collapsed > legend.mc-label::after {
    content: '▸';
  }
  #leaflet-map { z-index: 0; }
  #map-wrap { z-index: 0; }

  /* Detail: smaller text */
  .detail-meta { grid-template-columns: 1fr; }
  .hex-dump { font-size: 10px; }

  /* Modal */
  .modal { width: 95vw; padding: 16px; }

  /* Page header */
  .page-header { flex-direction: column; align-items: flex-start; gap: 8px; }
}

/* === Grouped Packet Rows === */
.group-header { cursor: pointer; font-weight: 600; }
.group-header td:first-child::before { content: '▶ '; font-size: 10px; color: var(--link-color); transition: transform 0.15s; display: inline-block; }
.group-header.expanded td:first-child::before { content: '▼ '; }
.group-header:hover { background: var(--row-hover); }
.group-child { font-size: 12px; }
.group-child td { padding-left: 20px; }
.group-child.hidden { display: none; }

/* === Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* Favorite stars — Phosphor sprite, 44×44 hit target (WCAG 2.5.5) */
.fav-star {
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); padding: 0; line-height: 1;
  transition: color .15s, transform .15s;
  min-width: 44px; min-height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
}
.fav-star .ph-icon { width: 22px; height: 22px; }
.fav-star:hover { transform: scale(1.1); }
.fav-star.on { color: var(--status-yellow); }

/* BYOP Decode Modal */
.byop-modal { max-width: 560px; }
.byop-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; }
.byop-header h3 { margin: 0; }
.byop-x { font-size: 1.2rem; color: var(--text-muted); background: none; border: none; cursor: pointer; }
.byop-input {
  width: 100%; min-height: 60px; max-height: 120px; resize: vertical;
  font-family: var(--mono); font-size: .8rem; padding: 10px;
  border: 1px solid var(--border); border-radius: 6px; background: var(--surface-1);
  color: var(--text);
}
.byop-input:focus { border-color: var(--accent); outline: 2px solid var(--accent); outline-offset: 1px; }
.byop-err { color: var(--status-red); font-size: .85rem; }
.byop-decoded { margin-top: 8px; }
.byop-section { margin-bottom: 14px; }
.byop-section-title {
  font-size: .75rem; text-transform: uppercase; letter-spacing: .05em;
  color: var(--accent); font-weight: 600; margin-bottom: 6px;
  padding-bottom: 4px; border-bottom: 1px solid var(--border);
}
.byop-kv { display: flex; flex-direction: column; gap: 4px; }
.byop-row { display: flex; gap: 12px; font-size: .85rem; }
.byop-key { color: var(--text-muted); min-width: 110px; flex-shrink: 0; }
.byop-val { color: var(--text); word-break: break-all; }
.byop-path { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; font-family: var(--mono); font-size: .8rem; }
.byop-hex { font-size: .75rem; word-break: break-all; color: var(--text-muted); background: var(--surface-1); padding: 8px; border-radius: 4px; max-height: 80px; overflow: auto; }
.byop-pre { font-size: .75rem; margin: 0; white-space: pre-wrap; }

/* Favorites nav dropdown */
.nav-fav-wrap { position: relative; }
.nav-fav-dropdown {
  display: none; position: absolute; top: 100%; right: 0; z-index: 1000;
  min-width: 260px; max-height: 360px; overflow-y: auto;
  background: var(--surface-1, var(--detail-bg)); border: 1px solid var(--border); border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,.15); margin-top: 6px;
}
.nav-fav-dropdown.open { display: block; }
.fav-dd-empty { padding: 20px; text-align: center; color: var(--text-muted); font-size: .85rem; }
.fav-dd-loading { padding: 16px; text-align: center; color: var(--text-muted); font-size: .85rem; }
.fav-dd-item {
  display: flex; align-items: center; gap: 8px; padding: 10px 14px;
  text-decoration: none; color: var(--text); transition: background .1s;
  border-bottom: 1px solid var(--border);
}
.fav-dd-item:last-child { border-bottom: none; }
.fav-dd-item:hover { background: var(--surface-1); }
.fav-dd-status { font-size: .7rem; flex-shrink: 0; }
.fav-dd-name { flex: 1; font-size: .85rem; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fav-dd-meta { font-size: .75rem; color: var(--text-muted); flex-shrink: 0; }
.fav-dd-star { font-size: .9rem; }

/* Leaflet popup accessibility — ensure readable in both themes */
.leaflet-popup-content-wrapper {
  background: var(--card-bg) !important; color: var(--text) !important;
  border-radius: 8px !important; box-shadow: 0 4px 12px rgba(0,0,0,.2) !important;
}
.leaflet-popup-tip { background: var(--card-bg) !important; }
.leaflet-popup-content { color: var(--text) !important; font-size: 13px !important; }

/* For Leaflet layer control */
.leaflet-control-layers,
.leaflet-control-layers-expanded {
  background-color: var(--card-bg) !important;
  color: var(--text) !important;
  border-color: var(--border) !important;
}
.leaflet-control-layers-separator {
  border-top-color: var(--border) !important;
}
[data-theme="dark"] .leaflet-control-layers-toggle {
  filter: invert(1);
}

/* ---- Leaflet overrides for theme ---- */
.leaflet-control-zoom a {
  background: color-mix(in srgb, var(--surface-1) 92%, transparent) !important;
  backdrop-filter: blur(12px);
  color: var(--text) !important;
  border-color: var(--border) !important;
  width: 44px !important;
  height: 44px !important;
  line-height: 44px !important;
  font-size: 20px !important;
}
.leaflet-control-zoom a:hover {
  background: rgba(59, 130, 246, 0.2) !important;
}

/* Column resize handles */
.col-resize-handle {
  position: absolute; top: 0; right: -4px; width: 9px; height: 100%;
  cursor: col-resize; z-index: 5; background: transparent; border-radius: 1px;
}
.col-resize-handle::after {
  content: ''; position: absolute; top: 4px; left: 3px; width: 3px; height: calc(100% - 8px);
  background: var(--border); border-radius: 1px;
}
.col-resize-handle:hover::after, .col-resize-handle.active::after {
  background: var(--accent); opacity: 0.6;
}

/* Encrypted channels de-emphasized */
button.ch-item.ch-item-encrypted { opacity: 0.5; }
button.ch-item.ch-item-encrypted:hover { opacity: 0.7; }
button.ch-item.ch-item-encrypted.selected { opacity: 0.8; }
button.ch-item.ch-item-encrypted .ch-badge { filter: grayscale(0.6); }

/* Channel key input (#725 M2) */
.ch-key-input {
  flex: 1;
  min-width: 0;
  box-sizing: border-box;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px 0 0 6px;
  background: var(--card-bg);
  color: var(--text);
  font-size: 12px;
  font-family: inherit;
}
.ch-key-input:focus {
  outline: 2px solid var(--accent, #3b82f6);
  outline-offset: -1px;
  border-color: var(--link-color, #3b82f6);
}
.ch-key-input::placeholder { color: var(--text-muted); }
.ch-key-input-wrap { margin-bottom: 4px; }
.ch-wrong-key { color: var(--danger, #ef4444); font-weight: 500; }

/* Add channel form (#759) */
.ch-add-form { margin: 0; }
.ch-add-label { display: block; font-weight: 600; font-size: 13px; color: var(--text); margin-bottom: 4px; }
.ch-key-input, .ch-add-btn { height: 32px; box-sizing: border-box; }
.ch-add-row { display: flex; align-items: stretch; }
.ch-add-btn {
  width: 32px; height: 32px; flex-shrink: 0;
  border: 1px solid var(--accent, #3b82f6); border-left: none;
  border-radius: 0 6px 6px 0;
  background: var(--accent, #3b82f6); color: #fff;
  font-size: 18px; font-weight: 700; line-height: 1;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
}
.ch-add-btn:hover { opacity: 0.85; }
.ch-add-hint { font-size: 11px; color: var(--text-muted); margin-top: 4px; line-height: 1.3; }
.ch-add-status { font-size: 12px; margin-top: 4px; padding: 4px 6px; border-radius: 4px; }
.ch-analytics-link {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 4px 8px;
  font-size: 14px;
  text-decoration: none;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 6px;
  flex: 0 0 auto;
}
.ch-analytics-link:hover { color: var(--link-color); }
.ch-add-status--loading { color: var(--text-muted); }
.ch-add-status--success { color: var(--success, #22c55e); }
.ch-add-status--warn { color: var(--warning, #eab308); }
.ch-add-status--error { color: var(--danger, #ef4444); }

/* Touch-friendly tappable elements */
.ch-tappable {
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(0,0,0,.08);
  user-select: none; -webkit-user-select: none;
}
.ch-msg-sender.ch-tappable {
  display: inline-block;
  padding: 4px 6px 4px 0;
  margin: -4px 0 0 -0px;
  min-height: 32px;
  line-height: 24px;
  border-radius: 4px;
}
.ch-msg-sender.ch-tappable:active { opacity: 0.6; }
@media (max-width: 640px) {
  .ch-msg-sender.ch-tappable {
    padding: 6px 10px 6px 0;
    min-height: 36px;
    font-size: 14px;
  }
  .ch-avatar.ch-tappable { min-width: 44px; min-height: 44px; width: 44px; height: 44px; }
  /* #1253: trim .badge-iata h-padding + margin-left on narrow viewports so
   * the observer cell + IATA pill fits within a 375px viewport. Without this
   * the badge right edge overflows by ~1.25px at 375px (same class of fix
   * as #1250/#1251 VCR LCD-clip). Badge stays fully visible — only padding
   * and side margin shrink; font-size, colors (via vars) unchanged. */
  .badge-iata { padding: 1px 3px; margin-left: 2px; }
}

/* Full-screen node detail */
.node-fullscreen { display: flex; flex-direction: column; height: 100%; overflow: hidden; }
.node-full-header {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  background: var(--card-bg); min-height: 48px;
}
.node-back-btn { display: flex !important; }
.node-full-title { font-weight: 700; font-size: 17px; flex: 1; }
.node-full-body { flex: 1; overflow-y: auto; padding: 16px; }
.node-full-card {
  background: var(--card-bg); border-radius: 8px; padding: 16px;
  margin-bottom: 12px; border: 1px solid var(--border);
}
.node-full-card h4 { margin: 0 0 10px; font-size: 14px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; }
.node-activity-list { display: flex; flex-direction: column; gap: 6px; }
.node-activity-item {
  display: flex; gap: 8px; font-size: 13px; padding: 6px 0;
  border-bottom: 1px solid var(--border); align-items: baseline;
}
.node-activity-item:last-child { border-bottom: none; }
.node-activity-time { color: var(--text-muted); white-space: nowrap; min-width: 70px; font-size: 12px; }

/* Analytics page */
.analytics-page { padding: 16px 24px; max-width: 1600px; margin: 0 auto; }
.analytics-header { margin-bottom: 20px; }
.analytics-header h2 { margin: 0 0 4px; }
.analytics-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; padding: 16px; margin-bottom: 16px; }
.analytics-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 16px; margin-bottom: 16px; }
.analytics-grid .analytics-card { margin-bottom: 0; }
.analytics-full { grid-column: 1 / -1; }
.analytics-card h3 { margin: 0 0 8px; font-size: 15px; }
.analytics-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.analytics-table th { text-align: left; padding: 8px; border-bottom: 2px solid var(--border); font-size: 12px; text-transform: uppercase; color: var(--text-muted); }
.analytics-table th.sortable { cursor: pointer; user-select: none; }
.analytics-table th.sortable:hover { color: var(--link-color); }
.analytics-table th.sort-active { color: var(--link-color); }
.analytics-table th .sort-arrow { font-size: 10px; margin-left: 4px; opacity: 0.7; }
.analytics-table td { padding: 8px; border-bottom: 1px solid var(--border); }
.analytics-table .ch-section-row { background: var(--card-bg); }
.analytics-table .ch-section-row td.ch-section-header {
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-transform: uppercase;
  padding: 10px 8px 6px;
  border-bottom: 1px solid var(--border);
  background: var(--card-bg);
}
.analytics-table .ch-section-row:hover { background: var(--card-bg); cursor: default; }
.hash-bars { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.hash-bar-row { display: flex; align-items: center; gap: 12px; }
.hash-bar-label { min-width: 160px; font-size: 13px; }
.hash-bar-track { flex: 1; height: 24px; background: var(--border); border-radius: 4px; overflow: hidden; }
.hash-bar-fill { height: 100%; border-radius: 4px; transition: width .3s; }
.hash-cell.hash-active:hover { outline: 2px solid var(--accent); outline-offset: -2px; }
.hash-cell.hash-selected { outline: 2px solid var(--accent); outline-offset: -2px; box-shadow: 0 0 6px var(--accent); }
.hash-cell-empty  { background: var(--card-bg); color: var(--text-muted); font-size: 12px; font-weight: 500; }
/* #1668-M4 r1: hash-cell semantic bgs carve out darker shades than the
   --status-green / --status-yellow tokens so #fff text passes WCAG AA.
   The status tokens themselves stay light (operator semantic "good"/"warn"
   against page bg). Cell bgs need their own contrast budget vs #fff fg.
   taken:    #22c55e (2.28:1) -> #15803d (green-700, 5.02:1)
   possible: #eab308 (1.92:1) -> #854d0e (yellow-800, 6.85:1)
   See test-issue-1668-m4-per-route.js hash-cell contrast block. */
.hash-cell-taken    { background: #15803d; color: #fff; font-size: 12px; font-weight: 700; }
.hash-cell-possible { background: #854d0e; color: #fff; font-size: 12px; font-weight: 700; }
.hash-cell-collision { color: #fff; font-size: 12px; font-weight: 700; }
/* #1668-M4 — per-route carve-outs.
   Hash-grid cells use a SEMANTIC bg palette (green=taken, yellow=possible,
   red-orange=collision). M2/M3 didn't fix these because the BG is the
   encoding. We don't flatten it — instead we bump the TEXT weight to 600+
   so 12px white-on-color clears AA (was 11px/400, M1 ~302 violations). */
.hash-cell { font-size: 12px; font-weight: 600; }
/* #1473 — First-byte 0x00 / 0xFF pubkeys are avoided by the MeshCore
   firmware keygen convention (NOT a protocol-level rejection):
   https://github.com/meshcore-dev/MeshCore/blob/8ede7641/examples/simple_repeater/main.cpp#L83
   Visually grey + strike, kill pointer events so the matrix click handler
   skips them. Applied by public/prefix-reserved.js → markReservedCells(). */
.hash-cell.prefix-reserved,
.prefix-reserved {
  background: repeating-linear-gradient(
    45deg,
    var(--card-bg),
    var(--card-bg) 4px,
    var(--border) 4px,
    var(--border) 8px
  ) !important;
  color: var(--text-muted) !important;
  text-decoration: line-through;
  opacity: 0.6;
  cursor: not-allowed !important;
  pointer-events: none;
}
.hash-matrix-tooltip {
  position: fixed; z-index: var(--z-tooltip); background: var(--surface-1); border: 1px solid var(--border);
  border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,0.25); padding: 8px 12px;
  font-size: 12px; min-width: 160px; max-width: 260px; pointer-events: none;
}
.hash-matrix-tooltip-hex { font-family: var(--mono); font-size: 13px; font-weight: 700; margin-bottom: 4px; color: var(--link-color); }
.hash-matrix-tooltip-status { color: var(--text-muted); font-size: 11px; }
.hash-matrix-tooltip-nodes { margin-top: 6px; display: flex; flex-direction: column; gap: 2px; }
.hash-byte-selector { display: flex; gap: 4px; }
.hash-byte-btn { padding: 4px 12px; border-radius: 20px; border: 1px solid var(--border); background: var(--card-bg); color: var(--text-muted); font-size: 12px; font-weight: 600; cursor: pointer; transition: background .15s, color .15s; }
.hash-byte-btn:hover { background: var(--border); color: var(--text); }
.hash-byte-btn.active { background: var(--accent-strong); color: var(--text-on-accent); border-color: var(--accent-strong); }
.hash-bar-value { min-width: 120px; text-align: right; font-size: 13px; font-weight: 600; }
/* #1668 M5 — was translucent-fg-on-tinted-bg (e.g. #ef4444 on #ef444420
   stacked over surface ≈ 2-4:1, BLOCKER). Solid -700 hue with white text
   preserves semantic encoding (red/green/blue) AND clears AA both themes:
   #fff/#b91c1c=6.47, #fff/#15803d=5.02, #fff/#1d4ed8=6.70. */
.badge-hash-1 { background: var(--palette-red-700, #b91c1c); color: var(--palette-gray-50, #f9fafb); }
.badge-hash-2 { background: var(--palette-green-700, #15803d); color: var(--palette-gray-50, #f9fafb); }
.badge-success { background: var(--palette-green-700, #15803d); color: var(--palette-gray-50, #f9fafb); }
.badge-danger { background: var(--palette-red-700, #b91c1c); color: var(--palette-gray-50, #f9fafb); }
.badge-hash-3 { background: var(--palette-blue-700, #1d4ed8); color: var(--palette-gray-50, #f9fafb); }
.timeline-legend { display: flex; gap: 16px; justify-content: center; margin-top: 8px; font-size: 12px; }
.legend-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 4px; vertical-align: middle; }
.timeline-chart svg { display: block; }
@media (max-width: 640px) {
  .hash-bar-label { min-width: 80px; }
  .hash-bar-value { min-width: 80px; font-size: 12px; }
  .hash-bar-label span { display: none; }
}
.clickable-row { cursor: pointer; }
.clickable-row:hover { background: var(--hover-bg, rgba(0,0,0,.04)); }
.analytics-link { color: var(--link-color); text-decoration: none; font-weight: 600; }
.analytics-link:hover { text-decoration: underline; }

/* Analytics v2 */
.analytics-tabs { display: flex; gap: 4px; margin-top: 12px; flex-wrap: wrap; }
.tab-btn { padding: 6px 14px; border: 1px solid var(--border); border-radius: 6px; background: var(--card-bg); color: var(--text); cursor: pointer; font-size: 13px; font-weight: var(--fw-medium); transition: all .15s; } /* #1668 M3 — 13px + 500 floor */
.tab-btn:hover { background: var(--hover-bg, rgba(0,0,0,.04)); }
/* #1668 M2 — active tab was #fff on --accent (2.75:1 BLOCKER). */
.tab-btn.active { background: var(--accent-strong); color: var(--text-on-accent); border-color: var(--accent-strong); }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 240px)); gap: 12px; margin-bottom: 16px; }
.stat-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; padding: 14px; text-align: center; }
.stat-value { font-size: 24px; font-weight: 700; color: var(--text); }
.stat-label { font-size: 12px; font-weight: var(--fw-medium); color: var(--text-muted); margin-top: 2px; } /* #1668 M3 — added 500 weight */
.stat-detail { font-size: 12px; font-weight: var(--fw-medium); color: var(--text-muted); margin-top: 2px; } /* #1668 M3 r1 — was 11px/400, below chip floor (adv #3) */
.stat-spark { margin-top: 6px; display: flex; justify-content: center; }
/* #1058 — Analytics rows: fluid + auto-stacking via CSS Grid `auto-fit`.
   Cards stack automatically when the row can't fit two columns at the
   400px-floor minimum (avoids cramped charts), and otherwise lay out
   side-by-side. Replaces the prior `flex` + `@media (max-width:640px)`
   approach so behavior is driven by available width — not viewport —
   matching #1050's fluid-everywhere mandate. `min(100%, 400px)` keeps
   the track from overflowing at very narrow widths. */
.analytics-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 400px), 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.rf-stats { display: flex; gap: 16px; flex-wrap: wrap; padding-top: 8px; font-size: 13px; }
.payload-bars { display: flex; flex-direction: column; gap: 6px; }
.payload-bar-row { display: flex; align-items: center; gap: 8px; }
.payload-bar-label { min-width: 100px; font-size: 12px; font-weight: var(--fw-medium); display: flex; align-items: center; gap: 4px; } /* #1668 M3 — added 500 weight */
.payload-bar-value { min-width: 100px; text-align: right; font-size: 12px; font-weight: var(--fw-medium); } /* #1668 M3 r1 — match .payload-bar-label weight (adv #1) */
.repeater-list { display: flex; flex-direction: column; gap: 4px; }
.repeater-row { display: flex; align-items: center; gap: 8px; padding: 4px 0; }
.repeater-name { min-width: 140px; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.repeater-bar { flex: 1; }
.repeater-count { min-width: 60px; text-align: right; font-size: 12px; font-weight: 600; }
.reach-rings { display: flex; flex-direction: column; gap: 6px; }
.reach-ring { display: flex; align-items: baseline; gap: 12px; padding: 6px 0; border-bottom: 1px solid var(--border); }
.reach-hop { min-width: 70px; font-weight: 700; font-size: 13px; }
.reach-nodes { flex: 1; font-size: 12px; line-height: 1.6; }
.reach-count { min-width: 70px; text-align: right; font-size: 12px; color: var(--text-muted); }
@media (max-width: 640px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .repeater-name { min-width: 80px; }
  .reach-ring { flex-wrap: wrap; }
  .analytics-page { padding: 12px; }
  .analytics-grid { grid-template-columns: 1fr; }
}
.observer-selector { display: flex; gap: 4px; margin-bottom: 12px; flex-wrap: wrap; }
.node-qr { text-align: center; margin-top: 8px; }
.node-qr svg { max-width: 100px; height: auto; border-radius: 4px; }
[data-theme="dark"] .node-qr svg rect[fill="#ffffff"] { fill: var(--card-bg); }
[data-theme="dark"] .node-qr svg rect[fill="#000000"] { fill: var(--text); }
.node-map-qr-wrap { position: relative; }
.node-map-qr-overlay { position: absolute; bottom: 8px; right: 8px; z-index: 400; background: rgba(255,255,255,0.5); border-radius: 4px; padding: 4px; line-height: 0; margin: 0; text-align: center; }
.node-map-qr-overlay svg { max-width: 56px !important; height: auto; display: block; margin: 0; }
[data-theme="dark"] .node-map-qr-overlay { background: rgba(255,255,255,0.4); }

/* Replay on Live Map button in packet detail */
.detail-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.replay-live-btn {
  padding: 5px 12px;
  background: rgba(168, 85, 247, 0.15);
  border: 1px solid rgba(168, 85, 247, 0.3);
  color: #c084fc;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
}
.replay-live-btn:hover { background: rgba(168, 85, 247, 0.3); }

/* Node filter dropdown */
.node-filter-wrap { display: inline-block; }
.node-filter-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--surface-1, #1e293b);
  border: 1px solid var(--border, rgba(255,255,255,0.1));
  border-radius: 6px;
  max-height: 200px;
  overflow-y: auto;
  z-index: var(--z-dropdown);
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}
.node-filter-dropdown.hidden { display: none; }
.node-filter-option {
  padding: 6px 10px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.1s;
}
.node-filter-option:hover { background: var(--surface-2, rgba(255,255,255,0.08)); }
/* .node-filter-option.node-filter-active — #1719 round-1 polish: bg/color
   consolidated into the .btn-active-accent rule. */

/* Hide low-value columns on mobile */
@media (max-width: 640px) {
  .col-region, .col-rpt, .col-size, .col-hashsize, .col-pubkey, .col-scope { display: none; }
}

/* Clickable hop links */
.hop-link {
  color: var(--link-color, #3b82f6);
  text-decoration: none;
  cursor: pointer;
  transition: color 0.15s;
}
.hop-link:hover { color: var(--accent-hover, #60a5fa); text-decoration: underline; }

/* Detail map link */
.detail-map-link {
  padding: 5px 12px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.25);
  color: #fbbf24;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s;
}
.detail-map-link:hover { background: rgba(245, 158, 11, 0.25); }

.copy-link-btn {
  padding: 5px 12px;
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  color: var(--text);
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.copy-link-btn:hover { background: var(--accent-border, rgba(59, 130, 246, 0.25)); }

/* Route tooltip on map */
.route-tooltip {
  background: rgba(0,0,0,0.8) !important;
  color: #fbbf24 !important;
  border: 1px solid rgba(245,158,11,0.3) !important;
  font-weight: 600;
  font-size: 0.75rem;
}

/* Ambiguous hop indicator */
.hop-ambiguous { border-bottom: 1px dashed var(--status-yellow, #f59e0b); }
.hop-warn { font-size: 0.7em; margin-left: 2px; vertical-align: super; color: var(--status-yellow, #f59e0b); }
.hop-conflict-btn { background: var(--status-yellow, #f59e0b); color: #000; border: none; border-radius: 4px; font-size: 11px;
  font-weight: 700; padding: 1px 5px; cursor: pointer; vertical-align: middle; margin-left: 3px; line-height: 1.2; }
.hop-conflict-btn:hover { background: var(--status-yellow, #d97706); filter: brightness(0.85); }
.hop-conflict-popover { position: absolute; z-index: var(--z-popover); background: var(--surface-1); border: 1px solid var(--border);
  border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,0.25); width: 260px; max-height: 300px; overflow-y: auto; }
.hop-conflict-header { padding: 10px 12px; font-size: 12px; font-weight: 700; border-bottom: 1px solid var(--border);
  color: var(--text-muted); }
.hop-conflict-list { padding: 4px 0; }
.hop-conflict-item { display: flex; align-items: center; gap: 8px; padding: 8px 12px; text-decoration: none;
  color: var(--text); font-size: 13px; border-bottom: 1px solid var(--border); }
.hop-conflict-item:last-child { border-bottom: none; }
.hop-conflict-item:hover { background: var(--hover-bg); }
.hop-conflict-name { font-weight: 600; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hop-conflict-dist { font-size: 11px; color: var(--text-muted); font-family: var(--mono); white-space: nowrap; }
.hop-conflict-pk { font-size: 10px; color: var(--text-muted); font-family: var(--mono); }
/* #1668 M5 — was opacity:0.85; dropped fg #f9fafb on accent-strong
   #2563eb to 4.45:1 (BLOCKER). The adjacent .hop-unreliable-btn (status
   yellow warning glyph) is the redundant non-color signal that this hop
   is dubious — opacity haze was over-encoding it. Remove the haze; the
   warning icon stays as the visual marker. */
.hop-unreliable { font-style: italic; }
.hop-unreliable-btn { background: none; border: none; color: var(--status-yellow, #f59e0b); font-size: 13px;
  cursor: help; vertical-align: middle; margin-left: 2px; padding: 0 2px; line-height: 1; }
.hop-global-fallback { border-bottom: 1px dashed var(--status-red); }
.hop-current { font-weight: 700 !important; color: var(--link-color) !important; }

/* Self-loop subpath rows */
.subpath-selfloop { opacity: 0.6; }
.subpath-selfloop td:first-child::after { content: ''; }

/* Hop prefix in subpath routes */
.hop-prefix { color: var(--text-muted); font-size: 0.8em; }

/* Subpath split layout */
.subpath-layout { display: flex; gap: 0; flex: 1; min-height: 0; overflow: auto; position: relative; }
.subpath-list { flex: 1; overflow-y: auto; padding: 16px; min-width: 0; }
.subpath-detail { width: 420px; min-width: 360px; max-width: 50vw; border-left: 1px solid var(--border, #e5e7eb); overflow-y: auto; padding: 16px; transition: width 0.2s; }
.subpath-detail.collapsed { width: 0; min-width: 0; padding: 0; overflow: hidden; border: none; }
.subpath-detail-inner h4 { margin: 0 0 4px; word-break: break-word; }
.subpath-meta { display: flex; flex-direction: column; gap: 2px; margin-bottom: 12px; color: var(--text-muted); font-size: 0.9em; }
.subpath-section { margin: 16px 0; }
.subpath-section h5 { margin: 0 0 6px; font-size: 0.9em; }
/* #1705 — was background:var(--accent) (#4a9eff) + color:#fff = 2.75:1, and
   the muted hop-prefix line at rgba(255,255,255,0.6) composited over that
   accent to 1.87:1 (hard BLOCKER). Pin the row to --accent-strong
   (#2563eb, palette-blue-600) with --text-on-accent (#f9fafb): primary
   text 4.95:1, hop-prefix at --text-on-accent (full alpha) on the same
   bg = 4.95:1 — clears WCAG AA (≥4.5:1). The hop-prefix used to be
   visually "muted" via 60% alpha white; we drop the alpha-muting because
   no other token in either theme composites to ≥4.5:1 on this background.
   Trade-off accepted: the prefix and primary line are now equal-weight
   visually — the previous secondary styling was itself the source of the
   1.87:1 BLOCKER, so visual hierarchy here is recovered via type/weight,
   not color.
   #1719 polish r1: !important on color also, to consolidate with
   .btn-active-accent override pattern. */
.subpath-selected { background: var(--accent-strong) !important; color: var(--text-on-accent) !important; }
.subpath-selected .hop-prefix { color: var(--text-on-accent); }
tr[data-hops]:hover { background: rgba(59,130,246,0.1); }

/* Hour distribution chart */
.hour-chart { display: flex; align-items: flex-end; gap: 2px; height: 60px; }
.hour-bar { flex: 1; background: var(--accent, #3b82f6); border-radius: 2px 2px 0 0; min-width: 4px; }
.hour-labels { display: flex; justify-content: space-between; font-size: 0.7em; color: var(--text-muted); }

/* Parent paths */
.parent-path { padding: 3px 0; border-bottom: 1px solid var(--border, #e5e7eb); }

@media (max-width: 768px) {
  .subpath-layout { flex-direction: column; height: auto; }
  .subpath-detail { width: 100%; border-left: none; border-top: 1px solid var(--border, #e5e7eb); }
}

@media (max-width: 480px) {
  .subpath-detail { min-width: 100%; width: 100%; max-width: 100%; }
  .subpath-layout { flex-direction: column; }

  /* #1415 mobile chrome compaction — keep packets pre-table chrome to ≤2 rows.
   * Hide BYOP (operator request) to reclaim ~70px from the page-header row,
   * shrink the page-header h2, and zero its bottom margin. The filter bar
   * already collapses behind a "Filters ▾" toggle (see existing block above). */
  .page-header [data-action="pkt-byop"] { display: none; }
  .page-header { margin-bottom: 6px; }
  .page-header h2 { font-size: 15px; }
  .data-table td, .data-table th { padding: 6px 4px; }

  /* #1458 P0-C — collapse the always-on filter expression input on small mobile.
   * Reveals when the sibling .filter-bar has .filters-expanded (set by the
   * existing "Filters ▾" toggle, so one tap reveals BOTH chrome rows). */
  .pkt-filter-expr { display: none; }
  #pktLeft:has(.filter-bar.filters-expanded) .pkt-filter-expr { display: block; }

  /* #1458 P0-A — semantic-first detail title: keep it dense, single-row when
   * possible, badges + summary share a line. */
  .detail-title { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: 15px; }
  .detail-srcdst { font-size: 13px; color: var(--text-muted); margin-top: 2px; }
}

/* #1458 P0-B — raw-bytes disclosure styling (applies everywhere). */
.detail-technical { margin-top: 12px; }
.detail-technical > summary {
  cursor: pointer; padding: 6px 0; font-weight: 600; color: var(--text-muted);
  user-select: none;
}
.detail-technical[open] > summary { color: var(--text); }

/* Legend swatches */
.legend-swatch { display: inline-block; width: 12px; height: 12px; border: 1px solid var(--border); vertical-align: middle; }

/* Subpath jump nav */
.subpath-jump-nav { display: flex; gap: 8px; align-items: center; margin-bottom: 16px; font-size: 0.9em; flex-wrap: wrap; }
.subpath-jump-nav span { color: var(--text-muted); }
.subpath-jump-nav a { padding: 4px 12px; border-radius: 4px; text-decoration: none; font-size: 0.85em; }
.subpath-jump-nav a:hover { opacity: 0.8; }

/* Route patterns table breathing room */
.subpath-list .analytics-table td:nth-child(2) { white-space: normal; word-break: break-word; max-width: 50vw; }
.subpath-list .analytics-table { table-layout: auto; }
.subpath-list h4 { margin-top: 24px; }

/* #70 — BYOP textarea larger on mobile */
@media (max-width: 640px) {
  .byop-input { min-height: 120px; }
}

/* #71 — Column visibility toggle */
.col-toggle-wrap { position: relative; display: inline-block; }
.col-toggle-btn { font-size: 13px; padding: 6px 10px; cursor: pointer; background: var(--input-bg); border: 1px solid var(--border); border-radius: 6px; color: var(--text); height: 34px; box-sizing: border-box; line-height: 1; }
.col-toggle-menu { display: none; position: absolute; top: 100%; left: 0; z-index: var(--z-dropdown); background: var(--card-bg); border: 1px solid var(--border); border-radius: 6px; padding: 6px 0; min-width: 150px; box-shadow: 0 4px 12px rgba(0,0,0,.15); }
.col-toggle-menu.open { display: block; }
.col-toggle-menu label { display: flex; align-items: center; gap: 6px; padding: 4px 12px; font-size: .82rem; cursor: pointer; color: var(--text); }
.col-toggle-menu label input[type="checkbox"] { width: 14px; height: 14px; margin: 0; flex-shrink: 0; }
.col-toggle-menu label:hover { background: var(--row-hover); }

/* Column hide classes */
.hide-col-region .col-region,
.hide-col-time .col-time,
.hide-col-hash .col-hash,
.hide-col-size .col-size,
.hide-col-type .col-type,
.hide-col-scope .col-scope,
.hide-col-observer .col-observer,
.hide-col-path .col-path,
.hide-col-rpt .col-rpt,
.hide-col-hashsize .col-hashsize,
.hide-col-details .col-details { display: none; }

/* === Home page fixes === */

/* #25 — Widen home page content cap from 720px to 1200px */
.home-stats,
.home-health,
.home-journey,
.home-checklist,
.home-footer,
.home-favorites { max-width: 1200px; }

/* #40 — Increase suggest-claim touch target to ≥44px */
.suggest-claim { min-height: 44px; min-width: 44px; padding: 10px 14px; display: inline-flex; align-items: center; justify-content: center; }

/* #41 — Lower My Nodes grid minimum to prevent overflow on 375-640px */
.my-nodes-grid { max-width: 1200px; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }

/* #42 — Stats cards: use grid with max-width per card on wide screens */
.home-stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 200px)); justify-content: center; }

/* #44 — Namespaced home sparkline classes (avoid collision with observers .spark-bar) */
.home-spark-label { font-size: .65rem; color: var(--text-muted); margin-bottom: 4px; }
.home-spark-bars { display: flex; align-items: flex-end; gap: 2px; height: 28px; }
.home-spark-bar { flex: 1; background: var(--accent); border-radius: 1px; min-width: 0; }

/* === Bug fixes: #17 #20 #21 #69 === */

/* #17 — Hash matrix mobile overflow */
.hash-matrix-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 100%; }
@media (max-width: 640px) {
  .hash-matrix-table td { width: 24px !important; height: 24px !important; font-size: 0.7em !important; }
  .hash-matrix-table td .hash-cell { padding: 0; }
}

/* #20 — Observers table horizontal scroll on mobile
 * #1056 — fluid columns + +N hidden pill removes the need for a forced
 * min-width; keep the wrapper for backward-compat selectors but let the
 * inner table flex with the viewport. */
.obs-table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.obs-table-scroll .obs-table { min-width: 0; }

/* #206 — Analytics/Compare tables scroll wrappers on mobile */
.analytics-table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.analytics-table-scroll .analytics-table,
.analytics-table-scroll .analytics-peer-table,
.analytics-table-scroll .compare-table { min-width: 480px; }
@media (max-width: 640px) {
  .spark-bar { min-width: 60px; width: auto; }
}

/* #21 — Chat message bubble max-width */
.ch-msg-bubble { max-width: 720px; }

/* #69 — Touch-friendly resize handle */
@media (pointer: coarse) {
  .panel-resize-handle { width: 12px !important; }
}
/* #21 — max-width applied via .ch-msg-bubble rule above */

/* === Bug fixes: #16 collapsible controls, #53 detail map height === */
.map-controls-toggle {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 1001;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  border: 1px solid var(--border, #333);
  background: var(--card-bg, #1e1e1e);
  color: var(--text, #fff);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}
.map-controls.collapsed {
  display: none;
}
.node-detail-map {
  height: 280px;
  min-height: 200px;
}
.node-top-row { display: flex; gap: 16px; margin-bottom: 12px; }
.node-top-row .node-map-wrap { flex: 3; min-height: 200px; border-radius: 8px; overflow: hidden; }
.node-top-row .node-map-wrap .node-detail-map { height: 100%; }
.node-top-row .node-qr-wrap { flex: 1; align-self: flex-start; min-width: 120px; max-width: 160px; display: flex; flex-direction: column; align-items: center; justify-content: center; background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; padding: 8px; }
.node-top-row .node-qr-wrap .node-qr { margin-top: 0; }
.node-qr-wrap--full { max-width: 240px; margin: 0 auto; }
.node-stats-table { width: 100%; border-collapse: collapse; font-size: 13px; background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; margin-bottom: 12px; }
.node-stats-table td { padding: 6px 12px; border-bottom: 1px solid var(--border); }
.node-stats-table tr:last-child td { border-bottom: none; }
.node-stats-table tr:nth-child(even) { background: var(--row-stripe); }
.node-stats-table td:first-child { font-weight: 600; color: var(--text-muted); width: 40%; white-space: nowrap; }
.node-stats-table td:last-child { font-weight: 500; }
@media (max-width: 768px) {
  .node-top-row { flex-direction: column; }
  .node-top-row .node-qr-wrap { min-height: auto; }
}
@media (max-width: 640px) {
  .node-detail-map {
    height: 200px;
    min-height: 160px;
  }
  /* #1243 — On mobile, mirror the desktop split-pane behavior used by the
     compact node detail (.node-map-qr-wrap): overlay the QR on the map
     instead of stacking a 250px-tall QR panel below it. Desktop (≥768px)
     keeps the side-by-side flex layout untouched. */
  .node-top-row { position: relative; }
  .node-top-row .node-map-wrap { flex: 1 1 100%; }
  .node-top-row .node-qr-wrap {
    position: absolute;
    bottom: 8px;
    right: 8px;
    z-index: 400;
    flex: 0 0 auto;
    min-width: 0;
    max-width: 96px;
    padding: 4px;
    background: var(--card-bg-translucent, rgba(255, 255, 255, 0.85));
    border: 1px solid var(--border);
    border-radius: 4px;
    line-height: 0;
    margin: 0;
  }
  .node-top-row .node-qr-wrap .node-qr svg { max-width: 72px; height: auto; }
  /* Hide the redundant pubkey caption inside the overlay QR — it's already
     shown in the card above and would push the overlay too large. */
  .node-top-row .node-qr-wrap .mono { display: none; }
  [data-theme="dark"] .node-top-row .node-qr-wrap {
    background: var(--card-bg-translucent-dark, rgba(255, 255, 255, 0.4));
  }
}

.detail-back-btn {
  background: none;
  border: 1px solid var(--border, #333);
  color: var(--text, #fff);
  padding: 4px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
}

.meshcore-marker { background: none !important; border: none !important; }
.marker-stale { opacity: 0.7; filter: grayscale(90%) brightness(0.8); }
.last-seen-active { color: var(--status-green); }
.last-seen-stale { color: var(--text-muted); }

/* === Node Analytics === */
.analytics-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 16px; }
.analytics-stat-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 6px; padding: 10px 12px; text-align: center; }
.analytics-stat-label { font-size: 10px; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); margin-bottom: 2px; }
.analytics-stat-value { font-size: 20px; font-weight: 700; }
.analytics-stat-desc { font-size: 10px; color: var(--text-muted); margin-top: 2px; font-style: italic; }
.analytics-charts {
  /* #1058 — fluid + auto-stacking layout. The grid sizes from its own
     available width (NOT the viewport), so a narrow side-pane on a wide
     screen still stacks. `auto-fit` collapses empty tracks; `minmax()`
     guarantees a minimum readable column width before wrapping. The
     `container-type: inline-size` opts in to container queries so
     descendants (or future tweaks) can size against this element's
     own width rather than the viewport. Uses #1054 spacing tokens. */
  container-type: inline-size;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr));
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}
.analytics-chart-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 6px; padding: var(--space-sm); min-width: 0; }
.analytics-chart-card.full { grid-column: 1 / -1; }
/* Constrain chart media inside the card (svg/canvas at any depth). The
   `.analytics-chart-card svg, .analytics-chart-card canvas` descendant
   selector is robust to wrapper elements (legends, tooltips, axis
   groups) being added between the card and the chart media. */
.analytics-chart-card svg,
.analytics-chart-card canvas { max-width: 100%; height: auto; display: block; }
.analytics-chart-card h4 { font-size: 11px; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); margin-bottom: 4px; }
.analytics-chart-desc { font-size: 10px; color: var(--text-muted); margin-bottom: 8px; font-style: italic; }
.analytics-heatmap { display: grid; grid-template-columns: 40px repeat(24, 1fr); gap: 2px; }
.analytics-heatmap-cell { aspect-ratio: 1; border-radius: 2px; cursor: default; }
.analytics-heatmap-label { font-size: 10px; color: var(--text-muted); display: flex; align-items: center; }
.analytics-time-range { display: flex; gap: 8px; margin-bottom: 16px; }
.analytics-time-range button { padding: 4px 12px; border-radius: 4px; border: 1px solid var(--border); background: var(--card-bg); color: var(--text); cursor: pointer; font-size: 12px; }
/* .analytics-time-range button.active — #1719 round-1 polish: bg/color
   consolidated into the .btn-active-accent rule. */
.analytics-peer-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.analytics-peer-table th { text-align: left; padding: 6px 8px; border-bottom: 2px solid var(--border); color: var(--text-muted); font-size: 11px; text-transform: uppercase; }
.analytics-peer-table td { padding: 6px 8px; border-bottom: 1px solid var(--border); }
.analytics-peer-table tr:hover td { background: var(--card-bg); }
@media (max-width: 768px) { .analytics-stats { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .analytics-stats { grid-template-columns: 1fr; } }

/* Claimed (My Mesh) node rows */
.claimed-row { background: color-mix(in srgb, var(--accent) 8%, transparent) !important; border-left: 3px solid var(--accent); }
.claimed-row:hover { background: color-mix(in srgb, var(--accent) 14%, transparent) !important; }
.claimed-badge { color: var(--accent); font-size: 13px; margin-right: 2px; }

/* Filter toggle button — hidden on desktop */
.filter-toggle-btn { display: none; }

/* Mobile detail bottom sheet */
.mobile-detail-sheet {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0;
  max-height: 70vh; background: var(--detail-bg);
  border-top-left-radius: 16px; border-top-right-radius: 16px;
  box-shadow: 0 -4px 24px rgba(0,0,0,.3);
  z-index: 200; overflow-y: auto; padding: 8px 16px 24px;
  transform: translateY(100%); transition: transform .25s ease;
}
.mobile-detail-sheet.open { display: block; transform: translateY(0); }
.mobile-sheet-handle {
  width: 40px; height: 4px; background: var(--border);
  border-radius: 2px; margin: 4px auto 8px; cursor: pointer;
}
.mobile-sheet-close {
  position: absolute; top: 8px; right: 12px;
  background: none; border: none; font-size: 20px;
  color: var(--text-muted); cursor: pointer; z-index: 1;
}
.mobile-sheet-close:hover { color: var(--text); }
.mobile-sheet-content { padding-top: 4px; }

/* Perf dashboard */
.perf-card { background: var(--surface-1); border: 1px solid var(--border); border-radius: 8px; padding: 12px 20px; min-width: 120px; text-align: center; }
.perf-num { font-size: 24px; font-weight: 800; color: var(--text); font-variant-numeric: tabular-nums; }
.perf-num--small { font-size: 0.85em; }
.perf-num--small a { color: var(--text-muted); text-decoration: none; }
.perf-num--small a:hover { color: var(--text); }
.perf-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-top: 4px; }
.perf-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.perf-table th { text-align: left; padding: 6px 10px; border-bottom: 2px solid var(--border); color: var(--text-muted); font-size: 11px; text-transform: uppercase; }
.perf-table td { padding: 5px 10px; border-bottom: 1px solid var(--border); font-variant-numeric: tabular-nums; }
.perf-table code { font-size: 12px; color: var(--text); }
.perf-table .perf-slow { background: rgba(239, 68, 68, 0.08); }
.perf-table .perf-slow td { color: var(--status-red); }
.perf-table .perf-warn { background: rgba(251, 191, 36, 0.06); }
.perf-table .perf-warn td { color: var(--status-yellow); }

/* #204 — Perf page responsive */
@media (max-width: 640px) {
  #perfWrapper { padding: 12px !important; }
  .perf-card { min-width: 0; flex: 1 1 calc(50% - 8px); }
  .perf-table { font-size: 11px; }
  .perf-table th, .perf-table td { padding: 4px 6px; }
}

/* ─── Region / Area filter bars ─── */
.region-filter-bar { display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 0; }
.area-dropdown-menu { min-width: 160px; }
.area-dropdown-item.area-item-active { color: var(--accent); font-weight: 600; }
.region-filter-container { margin: 0; padding: 0; display: inline-flex; align-items: center; }
.region-pill {
  display: inline-flex; align-items: center; padding: 4px 12px; border-radius: 16px;
  font-size: 12px; font-weight: 500; cursor: pointer; border: 1.5px solid var(--border);
  background: transparent; color: var(--text-muted); transition: all 0.15s; white-space: nowrap;
  flex-shrink: 0;
}
.region-pill:hover { border-color: var(--accent); color: var(--accent); }
/* #1668 M5 — was bg:var(--accent)(#4a9eff) + #fff = 2.75:1 BLOCKER on both themes.
   Bumped to --accent-strong (#2563eb) + --text-on-accent for 4.83:1 AA pass.
   Same M2 token pair used for .skip-link / .hop-named / .filter-bar .btn.active. */
button.region-pill-active {
  background: var(--accent-strong); color: var(--text-on-accent); border-color: var(--accent-strong);
}
button.region-pill-active:hover { opacity: 0.85; color: var(--text-on-accent); }
.region-filter-label {
  font-size: 12px; font-weight: 600; color: var(--text-muted); align-self: center;
  margin-right: 2px; user-select: none; white-space: nowrap; flex-shrink: 0;
}
.analytics-filters { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 8px 0; }
.analytics-time-window-select {
  height: 34px; min-height: 34px; padding: 0 10px; border-radius: 6px; box-sizing: border-box;
  font-size: 13px; font-weight: 500; cursor: pointer; border: 1px solid var(--border);
  background: var(--input-bg); color: var(--text); transition: border-color 0.15s;
}
.analytics-time-window-select:hover { border-color: var(--accent); }
.region-dropdown-wrap { position: relative; display: inline-flex; align-items: center; }
.region-dropdown-trigger {
  display: inline-flex; align-items: center; padding: 6px 10px; border-radius: 6px;
  font-size: 13px; font-weight: 500; cursor: pointer; border: 1px solid var(--border);
  background: var(--input-bg); color: var(--text); transition: all 0.15s;
  height: 34px; box-sizing: border-box; white-space: nowrap; line-height: 1;
}
.region-dropdown-trigger:hover { border-color: var(--accent); color: var(--accent); }
.region-dropdown-menu {
  position: absolute; top: 100%; left: 0; z-index: var(--z-dropdown);
  min-width: 220px; width: max-content; max-height: 260px; overflow-y: auto;
  background: var(--card-bg, #fff); border: 1px solid var(--border); border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12); padding: 4px 0;
}
.region-dropdown-item {
  display: flex; align-items: center; gap: 6px; padding: 6px 12px;
  font-size: 13px; cursor: pointer; color: var(--text); white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis; width: 100%; max-width: 320px;
  background: transparent; border: 0px;
}
.region-dropdown-item input[type="checkbox"] {
  width: 14px; height: 14px; margin: 0; flex-shrink: 0;
}
.region-dropdown-item:hover { background: var(--row-hover, #f5f5f5); }

/* Generic multi-select dropdown (Observer, Type filters) */
.multi-select-wrap { position: relative; display: inline-flex; align-items: center; }
.multi-select-trigger {
  display: inline-flex; align-items: center; padding: 6px 10px; border-radius: 6px;
  font-size: 13px; font-weight: 500; cursor: pointer; border: 1px solid var(--border);
  background: var(--input-bg); color: var(--text); transition: all 0.15s;
  height: 34px; box-sizing: border-box; white-space: nowrap; line-height: 1;
  /* #1128 (Bug 3): cap trigger width so a long selection like
   * "TRACE,MULTIPART,GRP_TXT" doesn't balloon the row and overlap toolbar
   * buttons. The full label remains accessible via the title tooltip.
   * #1131 MAJOR-4: use clamp() so the cap scales with viewport width
   * instead of being a hard 180px on every screen size. */
  max-width: clamp(120px, 18vw, 280px); overflow: hidden; text-overflow: ellipsis;
}
.multi-select-trigger:hover { border-color: var(--accent); color: var(--accent); }
.multi-select-menu {
  position: absolute; top: 100%; left: 0; z-index: var(--z-dropdown);
  min-width: 220px; max-height: 260px; overflow-y: auto;
  background: var(--card-bg, #fff); border: 1px solid var(--border); border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12); padding: 4px 0; display: none;
}
.multi-select-menu.open { display: block; }
.multi-select-item {
  display: flex; align-items: center; gap: 6px; padding: 6px 12px;
  font-size: 13px; cursor: pointer; color: var(--text); white-space: nowrap;
}
.multi-select-item input[type="checkbox"] {
  width: 14px; height: 14px; margin: 0; flex-shrink: 0;
}
.multi-select-item:hover { background: var(--row-hover, #f5f5f5); }

.chan-tag { background: var(--accent-strong, #2563eb); color: var(--text-on-accent, #f9fafb); padding: 2px 8px; border-radius: 4px; font-size: 0.9em; font-weight: 600; }

/* Matrix mode hex animation */
.matrix-char { background: none !important; border: none !important; }
.matrix-char span { display: block; text-align: center; white-space: nowrap; line-height: 1; }

/* === Matrix Theme === */
.matrix-theme .leaflet-tile-pane {
  filter: brightness(1.1) contrast(1.2) sepia(0.6) hue-rotate(70deg) saturate(2);
}
.matrix-theme.leaflet-container::before {
  content: ''; position: absolute; inset: 0; z-index: 401;
  background: rgba(0, 60, 10, 0.35); mix-blend-mode: multiply; pointer-events: none;
}
.matrix-theme.leaflet-container::after {
  content: ''; position: absolute; inset: 0; z-index: 402;
  background: rgba(0, 255, 65, 0.06); mix-blend-mode: screen; pointer-events: none;
}
.matrix-theme { background: #000 !important; }
.matrix-theme .leaflet-control-zoom a { background: #0a0a0a !important; color: #00ff41 !important; border-color: #00ff4130 !important; }
.matrix-theme .leaflet-control-attribution { background: rgba(0,0,0,0.8) !important; color: #00ff4180 !important; }
.matrix-theme .leaflet-control-attribution a { color: #00ff4160 !important; }

/* Scanline overlay */
.matrix-scanlines {
  position: absolute; inset: 0; z-index: 9999; pointer-events: none;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,255,65,0.02) 2px, rgba(0,255,65,0.02) 4px);
}

/* Feed panel in matrix mode */
.matrix-theme .live-feed {
  background: rgba(0, 10, 0, 0.92) !important;
  border-color: #00ff4130 !important;
  font-family: 'Courier New', monospace !important;
}
.matrix-theme .live-feed .live-feed-item { color: #00ff41 !important; border-color: #00ff4115 !important; }
.matrix-theme .live-feed .live-feed-item:hover { background: rgba(0,255,65,0.08) !important; }
.matrix-theme .live-feed .feed-hide-btn { color: #00ff41 !important; }

/* Controls in matrix mode (#1205 R1) — keep matrix text/accent color
   only. Background + border are owned by the parent #liveHeader (MESH
   LIVE panel) now that .live-controls is in-flow and transparent;
   re-painting an opaque box here would orphan a nested chrome rect
   inside the header for matrix-theme users. */
.matrix-theme .live-controls {
  background: transparent !important;
  border: 0 !important;
  color: #00ff41 !important;
}
.matrix-theme .live-controls label,
.matrix-theme .live-controls span,
.matrix-theme .live-controls .lcd-display { color: #00ff41 !important; }
.matrix-theme .live-controls button { color: #00ff41 !important; border-color: #00ff4130 !important; }
.matrix-theme .live-controls input[type="range"] { accent-color: #00ff41; }

/* Node detail panel in matrix mode */
.matrix-theme .live-node-detail {
  background: rgba(0, 10, 0, 0.95) !important;
  border-color: #00ff4130 !important;
  color: #00ff41 !important;
}
.matrix-theme .live-node-detail a { color: #00ff41 !important; }
.matrix-theme .live-node-detail .feed-hide-btn { color: #00ff41 !important; }

/* Node labels on map */
.matrix-theme .node-label { color: #00ff41 !important; text-shadow: 0 0 4px #00ff41 !important; }
.matrix-theme .leaflet-marker-icon:not(.matrix-char) { filter: hue-rotate(90deg) saturate(1) brightness(0.35) opacity(0.5); }

/* Audio controls */
.audio-controls {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 4px 8px;
  font-size: 12px;
}
.audio-controls.hidden { display: none; }
.audio-slider-label {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text-muted, #6b7280);
  font-size: 11px;
  white-space: nowrap;
}
.audio-slider {
  width: 80px;
  height: 4px;
  cursor: pointer;
  accent-color: #8b5cf6;
}
.audio-slider-label span {
  min-width: 24px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.matrix-theme .audio-controls label,
.matrix-theme .audio-controls span { color: #00ff41 !important; }
.matrix-theme .audio-slider { accent-color: #00ff41; }

/* Audio voice selector */
.audio-voice-select {
  background: var(--input-bg, #1f2937);
  color: var(--text, #e5e7eb);
  border: 1px solid var(--border, #374151);
  border-radius: 4px;
  padding: 2px 4px;
  font-size: 11px;
  cursor: pointer;
}
.matrix-theme .audio-voice-select {
  background: #001a00 !important;
  color: #00ff41 !important;
  border-color: #00ff4130 !important;
}

/* Audio unlock overlay */
.audio-unlock-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.6);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.audio-unlock-prompt {
  background: #1f2937;
  color: #e5e7eb;
  padding: 24px 40px;
  border-radius: 12px;
  font-size: 20px;
  font-weight: 600;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5);
  user-select: none;
}
.matrix-theme .audio-unlock-prompt {
  background: #001a00;
  color: #00ff41;
  box-shadow: 0 0 30px rgba(0,255,65,0.2);
}


/* Packet Filter Language */
.packet-filter-input { transition: border-color 0.2s; }
.packet-filter-input:focus { border-color: var(--accent); outline: none; }
.packet-filter-input.filter-error { border-color: var(--status-red); }
.packet-filter-input.filter-active { border-color: var(--status-green); }

/* ============================================================
 * Generic themed button vocabulary (#1644).
 * ------------------------------------------------------------
 * PR #1642 introduced markup like <button class="btn-secondary"> in
 * observers.js / observer-detail.js but never shipped a top-level
 * `.btn-secondary` rule — only `.ch-modal-btn-secondary`. The buttons
 * fell back to the browser default (white/gray) and looked broken
 * against the themed UI.
 *
 * The fix is a small, three-tier vocabulary built out of existing
 * surface/border/text tokens — NO new top-level color tokens, no
 * gradient/shadow chartjunk. Companion to `.btn-primary` (#3329 above):
 *
 *   .btn-primary    — high-emphasis, accent-filled
 *   .btn-secondary  — low-emphasis, themed neutral on surface
 *   .btn-ghost      — minimal, transparent until hover
 *
 * Sized 32-px tall by default; the global 48-px touch-target rule
 * lifts the hit area on touch devices without breaking desktop
 * proportions. Sibling `.btn-icon` (already defined above) keeps
 * its existing semantics.
 * ============================================================ */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text);
  font-family: inherit;
  font-size: var(--fs-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background 120ms, border-color 120ms, color 120ms;
}
.btn-secondary:hover:not([disabled]):not(:disabled) {
  background: var(--row-hover);
  border-color: var(--accent);
  color: var(--text);
}
.btn-secondary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.btn-secondary[disabled],
.btn-secondary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: background 120ms, color 120ms, border-color 120ms;
}
.btn-ghost:hover:not([disabled]):not(:disabled) {
  background: var(--hover-bg);
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost[disabled],
.btn-ghost:disabled { opacity: 0.5; cursor: not-allowed; }

/* === Observer Comparison (#/compare) — Tufte redesign (#1644) ===
 * Design rationale: the old layout was three card-boxes side-by-side
 * (heavy borders, decorative rgba tints, three nearly-identical
 * 28px counts) forcing the eye to do mental subtraction. The
 * redesign borrows the route-view v2 vocabulary (surface tokens,
 * small-multiples, ctx pills, sparing accent) so the comparison
 * page belongs in the same product. A single proportional
 * diff-strip (Tufte's "show the data") makes the asymmetry
 * legible at a glance; the textual cards are demoted to subtext.
 */
.compare-page { padding: var(--space-md); max-width: 1200px; margin: 0 auto;
  /* #1646 mobile: reserve space below the floating bottom-nav at ≤768px.
   * --bottom-nav-reserve is 0px on desktop, 56px + safe-area on mobile,
   * so this rule is a no-op for desktop and adds the exact clearance
   * needed on phones — the Shared-Types pill row + tabs were getting
   * eaten by the nav. (Tufte: don't reserve space we don't need.) */
  padding-bottom: calc(var(--space-md) + var(--bottom-nav-reserve, 0px));
}
.compare-page .page-header {
  display: flex; align-items: center; justify-content: flex-start;
  gap: var(--space-sm); margin-bottom: var(--space-sm);
}
.compare-page .page-header h2 { font-size: var(--fs-lg); margin: 0; }

.compare-breadcrumbs {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin: 0 0 var(--space-md);
}
.compare-breadcrumbs a { color: var(--link-color); text-decoration: none; }
.compare-breadcrumbs a:hover { text-decoration: underline; }

.compare-controls {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-md);
}
/* Once both observers are picked, the headline strip below is the
 * answer. Demote the picker: tighter padding, smaller labels.
 * Operators can still swap A/B without leaving the page. The "A"/"B"
 * referent stays visible (issue #1646 Tufte: erase labels, not
 * referents). */
.compare-controls.is-collapsed {
  padding: 4px var(--space-md);
}
.compare-controls.is-collapsed .compare-select-group label { display: none; }
.compare-controls.is-collapsed .compare-select { font-size: var(--fs-sm); padding: 4px 8px; }
.compare-controls.is-collapsed .compare-select-id { display: inline-block; }
.compare-selector {
  display: flex; align-items: flex-end; gap: var(--space-sm); flex-wrap: wrap;
}
.compare-select-group { display: flex; flex-direction: column; gap: 2px; min-width: 180px; }
.compare-select-group label {
  font-size: 10px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.6px; color: var(--text-muted);
}
/* The "A" / "B" badge is hidden when the labels are visible (expanded
 * state) and revealed when collapsed, so the dropdown row never loses
 * its A/B referent. */
.compare-select-id {
  display: none;
  font-size: 10px; font-weight: 700; color: var(--text-muted);
  letter-spacing: 0.6px; padding: 2px 0;
}
.compare-select {
  padding: 6px 10px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--input-bg); color: var(--text); font-size: var(--fs-sm);
  cursor: pointer;
}
.compare-select:focus { border-color: var(--accent); outline: none; }
.compare-vs {
  /* #1668 M5 — was font-size:10px+color:var(--text-muted)+opacity:0.7
     → composite color #8c929b on white = 3.13:1 (BLOCKER). Removed the
     opacity haze AND bumped from text-muted to text (full theme color)
     so the 'vs' lives in the same readable band as adjacent labels. */
  font-size: 10px; font-weight: 700; color: var(--text);
  text-transform: uppercase; letter-spacing: 1.2px;
  padding: 0 4px;
  align-self: center;
}
/* The Compare CTA was removed in #1646 — comparison auto-runs when
 * both observers are chosen. The legacy .compare-btn touch-target
 * declaration was deleted with it; surrounding form controls already
 * carry their own 48px-min-height rule. */

.compare-results { margin-top: var(--space-md); }

/* ── Headline strip — the only large number on the page ───────────
 * Three counts above a single proportional bar (small multiples on
 * a shared axis: one strip, not three boxes). Eye sees the whole
 * comparison in one fixation. */
.compare-strip {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md) var(--space-md);
  margin-bottom: var(--space-md);
}
.compare-strip-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-md);
  align-items: baseline;
  margin-bottom: 8px;
}
.compare-strip-side { display: flex; flex-direction: column; gap: 2px; cursor: pointer; }
.compare-strip-side-b { text-align: right; }
.compare-strip-name {
  font-size: var(--fs-sm); font-weight: 700; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
/* The side cells lead with the percentage, matching the middle cell
 * (one unit across the row, no design variation — issue #1646). */
.compare-strip-side-pct {
  font-family: var(--mono);
  font-size: var(--fs-xl); font-weight: 700;
  color: var(--text); font-variant-numeric: tabular-nums;
  line-height: 1;
}
.compare-strip-side-pct-unit {
  font-size: 0.6em; margin-left: 1px;
}
.compare-strip-sub { font-size: 11px; color: var(--text-muted); }
.compare-strip-mid {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  border-left: 1px dashed var(--border);
  border-right: 1px dashed var(--border);
  padding: 0 var(--space-md);
  cursor: pointer;
}
.compare-strip-mid-count {
  font-family: var(--mono);
  font-size: var(--fs-sm); font-weight: 600;
  color: var(--text); font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
/* The 79% gets the largest type — it IS the answer to "how much
 * overlap?". The raw count and the label demote underneath. (Tufte:
 * the most important number gets the most ink. Issue #1646.) */
.compare-strip-mid-pct {
  font-family: var(--mono);
  font-size: var(--fs-xl); font-weight: 700;
  color: var(--accent); font-variant-numeric: tabular-nums;
  line-height: 1;
}
.compare-strip-mid-pct-unit {
  font-size: 0.6em; margin-left: 1px;
}
.compare-strip-mid-label {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.6px;
  color: var(--text-muted);
}

/* The diff bar — one row, three colored segments, shared axis. */
.compare-bar-container { margin-top: 4px; }
.compare-bar {
  display: flex; height: 10px; border-radius: 5px; overflow: hidden;
  background: var(--surface-2);
}
.compare-bar-seg {
  transition: width 240ms ease;
  /* #1646: Tufte/honesty — a 1–2% segment must still be visible or
   * the chart is lying about presence. This is a *presence floor only*,
   * not a perception-equivalent floor: 2px is the smallest pip the
   * eye can reliably register on a 10px-tall bar without falsely
   * equating a 1% and a 5% slice (which a 6px floor would do).
   * Above ~2% the proportional encoding remains accurate. */
  min-width: 2px;
}
.compare-bar-a    { background: var(--accent); }
.compare-bar-both { background: var(--status-green); }
.compare-bar-b    { background: var(--status-amber); }
/* Tick marks on the diff bar showing where the proportions land */
.compare-bar-legend {
  display: flex; gap: var(--space-md); margin-top: 6px;
  font-size: 11px; color: var(--text-muted);
  flex-wrap: wrap;
}
.compare-legend-item { display: inline-flex; align-items: center; gap: 6px; }
.compare-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.compare-dot-a    { background: var(--accent); }
.compare-dot-both { background: var(--status-green); }
.compare-dot-b    { background: var(--status-amber); }

/* ── Asymmetric reach sentences ───────────────────────────────────
 * Two compact lines telling the directional story without three
 * cards or two big numbers. Mono-numeric for at-a-glance compare. */
.compare-asym {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}
.compare-asym-line {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-left: none;
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--fs-sm);
  color: var(--text-muted);
  line-height: 1.45;
}
.compare-asym-line b { color: var(--text); font-family: var(--mono); font-variant-numeric: tabular-nums; }
.compare-asym-line .compare-asym-pct {
  font-family: var(--mono); font-size: var(--fs-lg); font-weight: 700;
  color: var(--text); font-variant-numeric: tabular-nums;
  display: block; margin-bottom: 2px;
}

/* ── Type breakdown — packet-context ctx pills (route-view vocab) ─ */
.compare-type-summary {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-left: none;
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-md);
  font-size: var(--fs-sm); color: var(--text);
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px;
}
.compare-type-summary-label {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.6px;
  color: var(--text-muted); font-weight: 700;
  margin-right: 4px;
}
.compare-type-badge {
  display: inline-flex; align-items: baseline; gap: 4px;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: var(--badge-radius);
  background: var(--surface-2);
  font-size: 11px;
  color: var(--text);
  font-family: var(--mono); font-variant-numeric: tabular-nums;
}
.compare-type-badge b { color: var(--accent); font-weight: 700; }

/* ── Tabs (Summary / Both / Only A / Only B) ──────────────────── */
.compare-tabs {
  display: flex; gap: 0; margin-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border); flex-wrap: wrap;
}
.compare-tabs .tab-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  padding: 6px 14px;
  font-size: var(--fs-sm);
  font-weight: 600;
  cursor: pointer;
  transition: color 120ms, border-color 120ms;
  margin-bottom: -1px;
}
.compare-tabs .tab-btn:hover { color: var(--text); }
.compare-tabs .tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.compare-summary-text { padding: 4px 0 var(--space-sm); font-size: var(--fs-sm); line-height: 1.6; color: var(--text-muted); }
.compare-summary-text p { margin: 0 0 8px; }
.compare-summary-text p b,
.compare-summary-text p strong { color: var(--text); font-family: var(--mono); font-variant-numeric: tabular-nums; }
.compare-warning {
  color: var(--status-amber-text); background: var(--status-amber-light);
  border: 1px solid var(--status-amber); padding: 6px 10px; border-radius: var(--radius-sm);
  font-weight: 600;
}
.compare-good {
  color: var(--status-green);
  border: 1px solid var(--status-green); padding: 6px 10px; border-radius: var(--radius-sm);
  font-weight: 600;
}

.compare-table { font-size: var(--fs-sm); }

@media (max-width: 640px) {
  .compare-selector { flex-direction: column; align-items: stretch; }
  .compare-select-group { min-width: 0; }
  .compare-select { min-width: auto; width: 100%; }
  .compare-vs { display: none; }
  .compare-strip-row { grid-template-columns: 1fr; gap: var(--space-sm); }
  .compare-strip-side-b { text-align: left; }
  .compare-strip-mid { border-left: none; border-right: none;
    border-top: 1px dashed var(--border); border-bottom: 1px dashed var(--border);
    padding: var(--space-sm) 0; flex-direction: row; gap: 6px; align-items: baseline; }
  .compare-asym { grid-template-columns: 1fr; }
  /* #1646 mobile reflow: the asym sentence wraps mid-phrase at narrow
   * widths ("3,262 of GY889 Repeater's 3,347 packets" splitting after
   * "Repeater's"). text-wrap:pretty rebalances trailing words to
   * avoid orphan-style breaks; overflow-wrap:anywhere lets very long
   * node names yield instead of pushing the column. The percentage
   * already lives on its own line (display:block), so the body is
   * free to breathe. */
  .compare-asym-line {
    text-wrap: pretty;
    overflow-wrap: anywhere;
    word-break: normal;
  }
  /* #1646 mobile tabs: "Only N6IJ Repeater (675)" overruns the row at
   * 375px; without min-width:0 a flex item can't shrink past its
   * intrinsic content width. Allow each tab to shrink and ellipsis
   * its label so all four fit. The count parenthetical stays
   * visible because it's at the tail of the string. */
  .compare-tabs .tab-btn {
    min-width: 0;
    flex: 0 1 auto;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 50%;
    padding: 6px 10px;
  }
}

/* ── Observers page — compare-selection column + button hints ─── */
.col-compare-select {
  width: 36px; text-align: center;
  /* Tufte: this column is administrative chrome, NOT data.
     Shrink it; use the muted text so it doesn't compete. */
  color: var(--text-muted);
}
/* The checkbox itself: theme-aware accent + minimum tap target
 * provided by the surrounding cell, not the input. */
.col-compare-select input[type="checkbox"] {
  width: 16px; height: 16px; min-height: 16px;
  accent-color: var(--accent); cursor: pointer;
  /* When at least one row is selected, we add .has-compare-selection
   * to the table so the column highlight makes it obvious WHICH rows
   * are in the selection. */
}
.obs-table.has-compare-selection .col-compare-select { color: var(--text); }
.obs-table tbody tr:has(input[data-compare-select]:checked) {
  background: var(--selected-bg);
}
/* Compact "Compare selected (0)" button: when nothing selected, fade
 * to background so it doesn't compete with the primary "Compare
 * observers" CTA. The disabled rule above already gives 0.5 opacity. */
.observers-page .page-header {
  display: flex; align-items: center; gap: var(--space-sm); flex-wrap: wrap;
  margin-bottom: var(--space-sm);
}
.observers-page .page-header h2 { font-size: var(--fs-lg); margin: 0 var(--space-sm) 0 0; }
.observers-page .page-header .obs-refresh-spacer { margin-left: auto; }

/* Observer-detail header: the Compare-with picker + Compare button
 * should sit together visually. Reuses the same .btn-secondary. */
.observer-detail-page .compare-with-group {
  display: inline-flex; align-items: stretch; gap: 0;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface-1); overflow: hidden;
}
.observer-detail-page .compare-with-group select.time-range-select {
  border: none; background: transparent; color: var(--text);
  font-size: var(--fs-sm); padding: 6px 10px;
  border-right: 1px solid var(--border);
  min-height: 0;
}
.observer-detail-page .compare-with-group select.time-range-select:focus { outline: none; }
.observer-detail-page .compare-with-group button[data-action="compare-with-go"] {
  border: none; border-radius: 0; background: var(--surface-2);
}
.observer-detail-page .compare-with-group button[data-action="compare-with-go"]:hover:not(:disabled) {
  background: var(--row-hover); color: var(--text);
}

/* Neighbor graph canvas focus indicator for keyboard navigation */
#ngCanvas:focus {
  outline: 2px solid var(--link-color, #60a5fa);
  outline-offset: 2px;
}
#ngCanvas:focus:not(:focus-visible) {
  outline: none;
}

/* ===================== RF Health Dashboard ===================== */
.rf-health-container { padding: 0; }
.rf-time-selector {
  display: flex; flex-wrap: wrap; gap: 4px; align-items: center;
  margin-bottom: 8px; padding: 8px 0;
}
.rf-range-btn {
  padding: 4px 10px; border: 1px solid var(--border); border-radius: 4px;
  background: var(--bg-secondary, var(--card-bg, #1e1e1e)); color: var(--text-primary, #e0e0e0);
  cursor: pointer; font-size: 12px; transition: background 0.15s;
}
.rf-range-btn:hover { background: var(--bg-hover, #333); }
/* #1719 — consolidated active-button accent: was background:var(--accent)
   (#4a9eff) + color:#fff = 2.75:1 (BLOCKER × N selectors). All four
   recurring sites (.rf-range-btn.active, .clock-filter-btn.active,
   .subpath-jump-nav a, inline ptCheckBtn / ptGenBtn) now route through
   the shared `.btn-active-accent` style or this same token pair so a
   future regression is fixable in one place. --accent-strong
   (#2563eb) + --text-on-accent (#f9fafb) = 8.59:1 (AA pass). */
.btn-active-accent,
.rf-range-btn.active,
.clock-filter-btn.active,
.subpath-jump-nav a,
/* #1719 round-1 polish: three additional active-state surfaces
   consolidated here. Their inline `background:var(--accent); color:#fff`
   rules (2.75:1) are removed below — they now inherit this token pair. */
.node-filter-option.node-filter-active,
.subpath-selected,
.analytics-time-range button.active {
  background: var(--accent-strong);
  color: var(--text-on-accent);
  border-color: var(--accent-strong);
}
.rf-custom-inputs { display: inline-flex; gap: 4px; align-items: center; margin-left: 8px; }
.rf-datetime {
  padding: 3px 6px; border: 1px solid var(--border); border-radius: 4px;
  background: var(--bg-secondary, var(--card-bg)); color: var(--text-primary); font-size: 12px;
}

.rf-health-split {
  display: flex; height: calc(100vh - 180px); min-height: 300px; overflow: hidden;
}
.rf-health-grid {
  flex: 1; min-width: 0; overflow-y: auto; padding: 0 8px 8px 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 8px; align-content: start;
}
.rf-cell {
  border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px;
  cursor: pointer; transition: border-color 0.15s, background 0.15s;
  background: var(--bg-secondary, var(--card-bg, #1e1e1e));
}
.rf-cell:hover { border-color: var(--accent); }
.rf-cell:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.rf-cell-selected { border-color: var(--accent); background: var(--bg-hover, rgba(96,165,250,0.08)); }

.rf-cell-header { display: flex; justify-content: space-between; align-items: baseline; gap: 6px; margin-bottom: 4px; }
.rf-cell-name { font-weight: 600; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 120px; }
.rf-cell-nf { font-size: 13px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.rf-cell-batt { font-size: 11px; color: var(--text-muted); white-space: nowrap; }
.rf-nf-warning { color: var(--status-yellow, #f59e0b); }
.rf-nf-critical { color: var(--status-red, #ef4444); }

.rf-cell-sparkline { height: 24px; margin: 2px 0; overflow: hidden; }
.rf-cell-stats { display: flex; gap: 8px; font-size: 10px; color: var(--text-muted); }

/* Side panel for observer detail */
.rf-health-detail {
  width: 420px; min-width: 280px; max-width: 50vw;
  border-left: 1px solid var(--border); background: var(--bg-secondary, var(--card-bg));
  overflow-y: auto; padding: 16px; position: relative;
  animation: slideInRight 200ms ease-out;
}
.rf-health-detail.rf-panel-empty {
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 14px; animation: none;
}
.rf-detail-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.rf-detail-header h3 { margin: 0; font-size: 16px; }
.rf-detail-close {
  background: none; border: none; color: var(--text-muted); cursor: pointer;
  font-size: 18px; padding: 2px 6px; border-radius: 4px;
}
.rf-detail-close:hover { background: var(--bg-hover); }
.rf-detail-charts { display: flex; flex-direction: column; gap: 4px; }
.rf-detail-chart { margin: 0; overflow-x: auto; }
.rf-detail-summary { font-size: 12px; color: var(--text-muted); font-variant-numeric: tabular-nums; }

@media (max-width: 640px) {
  .rf-health-split { flex-direction: column; height: auto; }
  .rf-health-grid { grid-template-columns: 1fr; max-height: 50vh; }
  .rf-health-detail {
    width: 100% !important; max-width: 100%; min-width: 0;
    border-left: none; border-top: 1px solid var(--border);
  }
  .rf-time-selector { gap: 3px; }
  .rf-custom-inputs { margin-left: 0; margin-top: 4px; flex-wrap: wrap; }
}

/* Channel Color Picker Popover (M2, #271) */
/* === Channel Color Picker (#674) === */
.cc-picker-popover {
  position: fixed;
  z-index: var(--z-tooltip);
  background: var(--bg-secondary, #1e1e1e);
  border: 1px solid var(--border-color, #333);
  border-radius: 8px;
  padding: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.cc-picker-swatches {
  display: flex;
  gap: 6px;
}
.cc-swatch {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
  transition: border-color 0.15s;
}
.cc-swatch:hover { border-color: rgba(255,255,255,0.6); }
.cc-swatch:focus-visible { border-color: #fff; outline: 2px solid var(--accent, #3b82f6); outline-offset: 1px; }
.cc-swatch-active { border-color: #fff; }
.cc-picker-clear {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 4px 0;
  font-size: 11px;
  color: var(--text-muted, #888);
  background: none;
  border: none;
  cursor: pointer;
  text-align: center;
}
.cc-picker-clear:hover { color: var(--text-primary, #e0e0e0); }

/* Color dot affordance (#674) */
.ch-color-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,0.3);
  cursor: pointer;
  vertical-align: middle;
  margin-left: 6px;
  flex-shrink: 0;
}
.ch-color-clear {
  display: inline-block;
  font-size: 10px;
  line-height: 1;
  color: var(--text-muted, #888);
  cursor: pointer;
  margin-left: 3px;
  vertical-align: middle;
}
.ch-color-clear:hover { color: var(--text-primary, #e0e0e0); }
.ch-color-dot:not([style*="background"]) {
  background: transparent;
  border-style: dashed;
  border-color: var(--text-muted, #888);
}

/* Mobile bottom-sheet + larger touch targets (#674) */
@media (pointer: coarse) {
  .ch-color-dot {
    width: 20px;
    height: 20px;
    margin-left: 8px;
  }
  .cc-swatch {
    width: 36px;
    height: 36px;
  }
  .cc-picker-swatches {
    justify-content: center;
    gap: 10px;
  }
  .cc-picker-popover {
    position: fixed !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    top: auto !important;
    width: 100% !important;
    max-width: 100% !important;
    border-radius: 12px 12px 0 0;
    padding: 16px;
    padding-bottom: calc(16px + env(safe-area-inset-bottom));
    box-sizing: border-box;
  }
}

/* === #630 — Mobile Accessibility Fixes === */

/* #630-1: Touch targets — minimum 44px on touch devices */
@media (pointer: coarse) {
  .filter-bar .btn,
  .filter-group .btn,
  .tab-btn,
  .filter-bar input,
  .filter-bar select,
  .nav-btn,
  .region-pill,
  .region-dropdown-trigger,
  .multi-select-trigger,
  .node-count-pill,
  .analytics-time-range button,
  .detail-back-btn,
  .filter-toggle-btn {
    min-height: 44px;
    min-width: 44px;
  }
  .filter-bar input,
  .filter-bar select {
    height: 44px;
  }
  .region-dropdown-trigger,
  .multi-select-trigger {
    height: 44px;
  }
}

/* #630-3: Status text labels — visually hidden text for screen readers */
.sr-status-label { font-size: 11px; margin-left: 4px; }

/* #630-4: Detail panel as full-width overlay on mobile */
@media (max-width: 640px) {
  .split-layout .panel-right:not(.empty) {
    display: block;
    position: fixed;
    top: 52px;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    min-width: 0;
    z-index: 150;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* #630-5: Analytics tabs — horizontal scroll on small screens */
@media (max-width: 640px) {
  .analytics-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    padding-bottom: 4px;
  }
  .analytics-tabs .tab-btn {
    flex-shrink: 0;
    white-space: nowrap;
  }
}

/* #630-6: Tables — horizontal scroll wrapper (legacy; #1056 uses fluid cols) */
.table-scroll-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
@media (max-width: 640px) {
  /* #1056: do NOT enforce min-width on primary fluid tables — column hiding
   * via JS keeps content readable without horizontal scroll. */
  .data-table { min-width: 0; }
}

/* Table sorting indicators */
th[data-sort-key] { cursor: pointer; user-select: none; }
th[data-sort-key]:hover { background: var(--hover-bg, rgba(255,255,255,0.05)); }
th.sort-active { color: var(--accent, #60a5fa); }
.sort-arrow { font-size: 0.75em; opacity: 0.8; }

/* #690 — Clock Skew badges & fleet table */
.skew-badge { display: inline-block; font-size: 12px; padding: 1px 6px; border-radius: 3px; margin-left: 4px; font-weight: var(--fw-semibold); white-space: nowrap; } /* #1668 M3 — was 10px */
.skew-badge--ok { background: var(--status-green); color: #fff; }
.skew-badge--warning { background: var(--status-yellow); color: #000; }
.skew-badge--critical { background: var(--status-orange); color: #fff; }
.skew-badge--absurd { background: var(--status-purple); color: #fff; }
.skew-badge--no_clock { background: var(--skew-badge-no-clock-bg); color: #fff; }
.skew-badge--bimodal_clock { background: var(--status-amber-light); color: var(--status-amber-text); border: 1px solid var(--status-amber); }

.skew-detail-section { padding: 10px 16px; margin-bottom: 8px; }
.skew-sparkline-wrap { margin-top: 6px; }
.skew-sparkline-wrap svg { display: block; }


.clock-fleet-row--warning { background: color-mix(in srgb, var(--status-yellow) 10%, transparent); }
.clock-fleet-row--critical { background: color-mix(in srgb, var(--status-orange) 10%, transparent); }
.clock-fleet-row--absurd { background: color-mix(in srgb, var(--status-purple) 10%, transparent); }
.clock-fleet-row--no_clock { background: color-mix(in srgb, var(--text-muted) 10%, transparent); }

.clock-filter-btn { font-size: 12px; padding: 3px 8px; border: 1px solid var(--border); border-radius: 4px; background: var(--card-bg, #fff); color: var(--text); cursor: pointer; margin-right: 4px; }

/* === Path Inspector (issue #944) === */
.path-inspector-page { padding: 16px; max-width: 900px; margin: 0 auto; }
.path-inspector-input-row { display: flex; gap: 8px; margin-bottom: 12px; }
.path-inspector-input-row .input { flex: 1; }
.path-inspector-error { color: var(--status-red, #ef4444); font-size: 13px; margin-bottom: 8px; }
.path-inspector-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.path-inspector-table th,
.path-inspector-table td { padding: 6px 10px; border-bottom: 1px solid var(--border); text-align: left; }
.path-inspector-table th { background: var(--card-bg); font-weight: 600; }
.speculative-warning { color: var(--path-inspector-speculative, #d97706); font-weight: 600; }
.speculative-badge { cursor: help; }
.speculative-row { background: color-mix(in srgb, var(--path-inspector-speculative, #d97706) 8%, transparent); }
.evidence-row { font-size: 12px; color: var(--text-muted); }
.evidence-row.collapsed { display: none; }
.evidence-detail { padding: 4px 10px; }
.hop-evidence { margin: 2px 0; }
.path-inspector-stats { margin-top: 12px; font-size: 12px; color: var(--text-muted); }
.no-results { color: var(--text-muted); font-style: italic; }

/* Map side pane for path inspector */
.map-side-pane { flex: 0 0 32px; overflow: hidden; transition: flex-basis 0.2s; border-left: 1px solid var(--border); background: var(--card-bg); }
.map-side-pane.expanded { flex: 0 0 320px; overflow-y: auto; padding: 12px; }
.map-side-pane .pane-toggle { cursor: pointer; padding: 8px; font-size: 14px; text-align: center; }
.map-side-pane .pane-content { display: none; }
.map-side-pane.expanded .pane-content { display: block; }
/* #1236: on mobile the path-inspector side pane was eating 32px of horizontal
   width (flex:0 0 32px) inside #map-wrap, leaving an unused gutter on the
   right of the leaflet canvas. Path Inspector is a desktop-only convenience;
   hide the pane on narrow viewports so the map fills 100% of the viewport. */
@media (max-width: 640px) {
  .map-side-pane { display: none; }
}

/* Tools landing page */
.tools-landing { padding: 24px; max-width: 600px; }
.tools-menu { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }
.tools-card { display: block; padding: 16px; border-radius: 8px; border: 1px solid var(--border); background: var(--card-bg); color: var(--text); text-decoration: none; transition: border-color 0.2s; }
.tools-card:hover { border-color: var(--primary); }
.tools-card h3 { margin: 0 0 4px 0; font-size: 16px; }
.tools-card p { margin: 0; font-size: 13px; color: var(--text-muted); }

/* ── Map marker clustering (issue #1036, a11y refit issue #1356) ──
 *
 * #1356 WCAG 2.2 AA refit — Tufte structural framing + audit minimal patch.
 * Design source: github.com/Kpa-clawbot/CoreScope/issues/1356 (Tufte + audit comments).
 *
 * Carriers (NON-color) of meaning, per WCAG 1.4.1:
 *   - V1 cluster bubbles: size (40/48/56px) + numeral + border-style ramp EMOJI-OK-COMMENT
 *     (1.5px solid / 2.5px solid / 2px double). Fill is a single neutral.
 *   - V2 role pills: capital-letter prefix (R/C/M/S/O). Wong (2011) palette
 *     hue is secondary. Dark text (#1a1a1a) on ALL five pills (audit override
 *     so only ONE text-color rule is needed and every pill passes 4.5:1).
 *   - V3 multi-byte hash labels: unicode glyph prefix (✓/?/✗) + neutral fill EMOJI-OK-COMMENT
 *     + 3px colored left-border using the audit's high-luminance accent set
 *     (NOT Tol "vibrant" — those failed 3:1 vs the neutral fill).
 *
 * Constants are --mc-* namespaced. The reserved --info / --warning / --accent
 * system vars are NOT touched (per issue scope + AGENTS.md).
 */
:root {
  /* V1 — cluster bubble */
  --mc-cluster-fill:   rgba(33, 41, 54, 0.88);
  --mc-cluster-text:   #ffffff;
  --mc-cluster-border: #666666; /* audit: white border = 1.05:1 vs Carto-light; #666 = 4.83:1 */

  /* V2 — role pills (Wong 2011 colorblind-safe palette) */
  --mc-role-repeater:  #D55E00; /* vermillion        */
  --mc-role-companion: #56B4E9; /* sky blue          */
  --mc-role-room:      #009E73; /* bluish-green      */
  --mc-role-sensor:    #F0E442; /* yellow            */
  --mc-role-observer:  #CC79A7; /* reddish-purple    */

  /* #1488 — marker stroke (outline around the role shape on map + live).
   * Reporter (EldoonNemar) found the new white stroke overwhelming with
   * hundreds of nodes. Defaults preserve visibility on both dark + light
   * tiles; operators dial these via the customizer (Colors → Marker
   * Stroke) or via config.json (markerStroke.*). All SVG marker builders
   * read these vars so changes propagate live without a reload. */
  --mc-marker-stroke-color:   #fff;
  --mc-marker-stroke-width:   2;
  --mc-marker-stroke-opacity: 1;

  /* #1407 — per-role text colors paired with each --mc-role-X bg so
   * .mc-pill (and any badge using the var) hits WCAG 1.4.3 AA against
   * the active preset. Wong defaults all clear 4.5:1 with dark text;
   * preset overrides live in body[data-cb-preset="..."] blocks below. */
  --mc-role-repeater-text:  #1a1a1a;
  --mc-role-companion-text: #1a1a1a;
  --mc-role-room-text:      #1a1a1a;
  --mc-role-sensor-text:    #1a1a1a;
  --mc-role-observer-text:  #1a1a1a;

  /* V3 — multi-byte hash labels (neutral fill + high-luminance accent stripes) */
  --mc-mb-fill:        rgba(33, 41, 54, 0.92);
  --mc-mb-text:        #ffffff;
  --mc-mb-confirmed:   #56F0A0; /* audit override of Tol vibrant for fill contrast */
  --mc-mb-suspected:   #FFD966;
  --mc-mb-unknown:     #FF8888;
}

/* ─────────────────────────────────────────────────────────────────────────
 * #1361 — Colorblind preset overrides.
 *
 * Each block overrides --mc-role-* and --mc-mb-* CSS vars when the body
 * carries the matching data-cb-preset attribute. cb-presets.js also writes
 * these vars inline on documentElement (defense-in-depth so the preset
 * takes effect even on pages that ship custom theme overrides), and keeps
 * window.ROLE_COLORS in sync for JS consumers (legend, cluster builder).
 *
 * Palette sources cited in PR body. Authoritative CSS rules here mirror
 * the JS PRESETS table in public/cb-presets.js — both are the source of
 * truth so a regression that drops one is still caught by the other
 * (mirrors the #1356 "pill color: defense-in-depth via CSS + inline" pattern).
 * ─────────────────────────────────────────────────────────────────────── */
/* #1446 — the body data-cb-preset rule for the default (Wong) palette is
 * intentionally OMITTED. Wong is the :root baseline; selecting "default"
 * from the customizer is identical to "no preset". Writing the Wong
 * palette here would mask the server config's nodeColors (see #1446
 * cascade). Wong values remain available via :root above.
 */
body[data-cb-preset="deut"] {
  /* IBM 5-class deut variant — anchors shifted out of red/green collision. */
  --mc-role-repeater:  #FE6100;
  --mc-role-companion: #648FFF;
  --mc-role-room:      #785EF0;
  --mc-role-sensor:    #FFB000;
  --mc-role-observer:  #DC267F;
  /* #1407 — room/observer fail with dark text (3.86/3.83); flip to white. */
  --mc-role-repeater-text:  #1a1a1a;
  --mc-role-companion-text: #1a1a1a;
  --mc-role-room-text:      #ffffff;
  --mc-role-sensor-text:    #1a1a1a;
  --mc-role-observer-text:  #ffffff;
  --mc-mb-confirmed:   #648FFF;
  --mc-mb-suspected:   #FFB000;
  --mc-mb-unknown:     #DC267F;
}
body[data-cb-preset="prot"] {
  /* Protan: swap repeater anchor for higher-luminance amber. */
  --mc-role-repeater:  #FFB000;
  --mc-role-companion: #648FFF;
  --mc-role-room:      #785EF0;
  --mc-role-sensor:    #FE6100;
  --mc-role-observer:  #DC267F;
  /* #1407 — same room/observer flip as deut. */
  --mc-role-repeater-text:  #1a1a1a;
  --mc-role-companion-text: #1a1a1a;
  --mc-role-room-text:      #ffffff;
  --mc-role-sensor-text:    #1a1a1a;
  --mc-role-observer-text:  #ffffff;
  --mc-mb-confirmed:   #648FFF;
  --mc-mb-suspected:   #FFB000;
  --mc-mb-unknown:     #DC267F;
}
body[data-cb-preset="trit"] {
  /* Paul Tol muted (B/Y-safe). */
  --mc-role-repeater:  #CC6677;
  --mc-role-companion: #117733;
  --mc-role-room:      #882255;
  --mc-role-sensor:    #DDCC77;
  --mc-role-observer:  #AA4499;
  /* #1407 — companion / room / observer fail AA with dark text; flip to white. */
  --mc-role-repeater-text:  #1a1a1a;  /* 5.73:1 */
  --mc-role-companion-text: #ffffff;  /* 5.66:1 */
  --mc-role-room-text:      #ffffff;  /* 8.71:1 */
  --mc-role-sensor-text:    #1a1a1a;  /* 12.98:1 */
  --mc-role-observer-text:  #ffffff;  /* 5.25:1 */
  --mc-mb-confirmed:   #117733;
  --mc-mb-suspected:   #DDCC77;
  --mc-mb-unknown:     #CC6677;
}
body[data-cb-preset="achromat"] {
  /* Pure luminance ramp at 20/35/50/70/90% — relies on #1356/#1357 carriers. */
  --mc-role-repeater:  #333333;
  --mc-role-companion: #595959;
  --mc-role-room:      #808080;
  --mc-role-sensor:    #b3b3b3;
  --mc-role-observer:  #e6e6e6;
  /* #1407 — original bug: dark text on all 5 grays failed AA on 3 of 5.
   * Pair each gray with the text color that wins ≥4.5:1; L=50% mid-gray
   * needs pure black (#1a1a1a yields 4.41, #fff yields 3.95 — neither
   * passes; black yields 5.32). */
  --mc-role-repeater-text:  #ffffff;  /* 12.63:1 */
  --mc-role-companion-text: #ffffff;  /* 7.00:1 */
  --mc-role-room-text:      #000000;  /* 5.32:1 */
  --mc-role-sensor-text:    #1a1a1a;  /* 8.30:1 */
  --mc-role-observer-text:  #1a1a1a;  /* 13.94:1 */
  --mc-mb-confirmed:   #b3b3b3;
  --mc-mb-suspected:   #808080;
  --mc-mb-unknown:     #595959;
}

.mc-cluster-wrap { background: transparent !important; border: 0 !important; }
.mc-cluster {
  width: 48px; height: 48px; border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-family: var(--font, system-ui, sans-serif);
  background: var(--mc-cluster-fill);
  color: var(--mc-cluster-text); text-shadow: 0 1px 2px rgba(0,0,0,0.5);
  border: 2px solid var(--mc-cluster-border);
  /* Dark halo + soft shadow — audit fix so the border edge is visible vs Carto-light */
  box-shadow: 0 0 0 1px rgba(0,0,0,0.5), 0 1px 2px rgba(0,0,0,0.35);
  cursor: pointer;
  transition: transform 120ms ease;
}
.mc-cluster:hover { transform: scale(1.06); }
/* Border-style ramp is the redundant non-color carrier of the count bucket. */
.mc-cluster.mc-sm { width: 40px; height: 40px; border-width: 1.5px; border-style: solid; }
.mc-cluster.mc-md { width: 48px; height: 48px; border-width: 2.5px; border-style: solid; }
.mc-cluster.mc-lg { width: 56px; height: 56px; border-width: 2px;   border-style: double; }
.mc-cluster .mc-count { font-size: 0.875rem; font-weight: 700; line-height: 1; font-variant-numeric: tabular-nums; }
.mc-cluster.mc-lg .mc-count { font-size: 1rem; }
.mc-cluster .mc-pills {
  display: flex; gap: 2px; margin-top: 3px;
}
.mc-cluster .mc-pill {
  display: inline-block; min-width: 12px; padding: 1px 3px;
  border-radius: 3px;
  /* #1364: removed the prior `max-width` cap — it clamped the BOX
     (including the 1px 3px padding) to ~2.5ch of text, ellipsizing `R60`
     to `R…`. JS in map.js already caps counts at "999+" (max 5 chars:
     `R999+`), which is the load-bearing safety. `overflow:hidden` +
     `text-overflow:ellipsis` stay as belt-only graceful-degrade if the
     JS cap is ever bypassed. */
  overflow: hidden; text-overflow: ellipsis;
  /* #1407 — pill text color now reads --mc-pill-text (set per-pill via the
     role-* selectors below), with a #1a1a1a fallback for any caller that
     forgets to set the role class. This replaces the hardcoded `#1a1a1a`
     that broke WCAG 1.4.3 AA on the achromat preset for 3 of 5 grays.
     The Wong (#1357) audit conclusion still holds for the default preset
     because --mc-role-X-text defaults to #1a1a1a in :root.
     Sized in rem (0.625rem = 10px @ default 16px root) so user
     font-size preferences scale the pill (SC 1.4.4 Resize Text 200%). */
  font: 700 0.625rem/1.1 ui-monospace, "SF Mono", Consolas, monospace;
  letter-spacing: 0;
  color: var(--mc-pill-text, #1a1a1a); text-align: center; text-shadow: none;
  border: 1px solid rgba(0,0,0,0.25);
  /* #1360: overflow:hidden + text-overflow:ellipsis above bound the pill
     when counts approach the 4-char cap ("999+"). Acceptable tradeoff vs.
     SC 1.4.12 letter-spacing clipping: text content is the role letter +
     <=4 digits, far short of needing aggressive letter-spacing overrides. */
}
/* #1407 — per-role pill text color, sourced from --mc-role-*-text vars set
 * by cb-presets.js applyPreset() (and the body[data-cb-preset=...] CSS
 * blocks above). The role-<r> class is emitted by makeClusterIcon in
 * public/map.js, so each pill picks the correct foreground for its bg. */
.mc-cluster .mc-pill.role-repeater  { color: var(--mc-role-repeater-text,  #1a1a1a); }
.mc-cluster .mc-pill.role-companion { color: var(--mc-role-companion-text, #1a1a1a); }
.mc-cluster .mc-pill.role-room      { color: var(--mc-role-room-text,      #1a1a1a); }
.mc-cluster .mc-pill.role-sensor    { color: var(--mc-role-sensor-text,    #1a1a1a); }
.mc-cluster .mc-pill.role-observer  { color: var(--mc-role-observer-text,  #1a1a1a); }

/* V3 — multi-byte hash labels: neutral fill + colored 3px left border */
.mc-mb-label {
  background: var(--mc-mb-fill);
  color: var(--mc-mb-text);
  /* Sized in rem (0.75rem = 12px @ default root) so user font-size
     preferences scale the label per SC 1.4.4 Resize Text 200%. */
  font: 600 0.75rem/1.2 ui-monospace, "SF Mono", Consolas, monospace;
  letter-spacing: 0.02em;
  padding: 2px 5px 2px 4px;
  border-left: 3px solid transparent;
  border-radius: 2px;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.5), 0 1px 2px rgba(0,0,0,0.35);
  white-space: nowrap;
  text-align: center;
  line-height: 1.2;
}
.mc-mb-label.status-confirmed { border-left-color: var(--mc-mb-confirmed); }
.mc-mb-label.status-suspected { border-left-color: var(--mc-mb-suspected); }
.mc-mb-label.status-unknown   { border-left-color: var(--mc-mb-unknown);   }

/* Forced-colors / Windows High Contrast — degrade gracefully (audit item 7). */
@media (forced-colors: active) {
  .mc-cluster, .mc-pill, .mc-mb-label {
    forced-color-adjust: auto;
    background: Canvas;
    color: CanvasText;
    border-color: CanvasText;
  }
}

/* === #1034 PR1: Channel Add modal + sectioned sidebar === */
.ch-add-channel-btn {
  background: var(--accent-strong, #2563eb); color: var(--text-on-accent, #f9fafb); border: none;
  padding: 6px 12px; border-radius: 6px; cursor: pointer; font-size: 13px; font-weight: 600;
}
.ch-add-channel-btn:hover { background: var(--palette-blue-700, #1d4ed8); }

.ch-modal-overlay { z-index: 1100; }
.ch-modal-overlay.hidden { display: none; }
.ch-modal { width: 560px; max-width: 92vw; padding: 24px 24px 16px; position: relative; }
.ch-modal h3 { margin: 0 0 16px; font-size: 18px; }
.ch-modal-close {
  position: absolute; top: 10px; right: 10px;
  background: transparent; border: none; cursor: pointer;
  font-size: 18px; color: var(--text-muted); padding: 4px 8px; border-radius: 6px;
}
.ch-modal-close:hover { background: var(--row-hover, rgba(0,0,0,0.05)); color: var(--text); }
.ch-modal-section { padding: 12px 0; border-top: 1px solid var(--border); }
.ch-modal-section:first-of-type { border-top: none; padding-top: 0; }
.ch-modal-section-title { margin: 0 0 4px; font-size: 14px; font-weight: 600; }
.ch-modal-section-hint { margin: 0 0 10px; font-size: 12px; color: var(--text-muted); }
.ch-modal-row { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; }
.ch-modal-input {
  flex: 1; min-width: 0; padding: 7px 10px; font-size: 13px;
  border: 1px solid var(--border); border-radius: 6px;
  background: var(--input-bg, var(--card-bg)); color: var(--text);
}
.ch-modal-input--mono { font-family: var(--mono, monospace); }
.ch-modal-btn-secondary {
  background: var(--card-bg); color: var(--text);
  border: 1px solid var(--border); padding: 7px 12px;
  border-radius: 6px; cursor: pointer; font-size: 13px;
}
.ch-modal-btn-secondary[disabled] { opacity: .5; cursor: not-allowed; }
.ch-hashtag-row .ch-hashtag-prefix {
  font-family: var(--mono, monospace); font-size: 14px; color: var(--text-muted); padding: 0 2px;
}
.ch-modal-warn { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.ch-modal-warn code { background: var(--row-hover, rgba(0,0,0,0.05)); padding: 1px 4px; border-radius: 3px; font-size: 11px; }
.ch-modal-error { color: var(--status-red, #dc2626); font-size: 12px; margin-top: 4px; }
.ch-modal-footer {
  margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--border);
  font-size: 12px; color: var(--text-muted); line-height: 1.4;
}
.ch-modal-callout {
  margin: 10px 0 14px; padding: 10px 12px; border-radius: 6px;
  background: var(--warn-bg, #fef3c7); color: var(--warn-text, #92400e);
  border: 1px solid var(--warn-border, #fcd34d);
  font-size: 13px; line-height: 1.4;
}
.ch-section-locality {
  font-size: 12px; font-weight: 500; text-transform: none;
  letter-spacing: 0; color: var(--text-muted); opacity: 0.85;
  margin-left: 4px;
}
.ch-qr-output { font-size: 11px; font-family: var(--mono, monospace); color: var(--text-muted); word-break: break-all; min-height: 14px; padding: 4px 0; }

/* #1087 polish: dedicated Share modal styling. Mirrors .ch-modal* tokens. */
.ch-share-modal { max-width: 480px; }
.ch-share-modal-title { margin: 0 0 12px; font-size: 16px; font-weight: 600; }
.ch-share-modal-body { display: flex; flex-direction: column; gap: 12px; }
.ch-share-qr {
  display: flex; align-items: center; justify-content: center;
  min-height: 120px; padding: 8px;
  background: var(--bg-secondary, rgba(0,0,0,0.02));
  border: 1px solid var(--border); border-radius: 6px;
}
.ch-share-field-group { display: flex; flex-direction: column; gap: 4px; }
.ch-share-label { font-size: 12px; font-weight: 600; color: var(--text-muted); }
.ch-share-row { display: flex; gap: 6px; align-items: center; }
.ch-share-row .ch-modal-input { flex: 1; min-width: 0; }
.ch-share-error {
  color: var(--status-red, #dc2626); font-size: 13px; line-height: 1.4;
  padding: 8px 12px; text-align: center;
}

.ch-section { margin-bottom: 8px; }
.ch-section-header {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 10px; font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .5px; color: var(--text-muted);
  background: transparent; border: none; width: 100%; text-align: left; cursor: default;
}
.ch-section-toggle { cursor: pointer; }
.ch-section-toggle:hover { color: var(--text); }
.ch-section-empty { padding: 8px 12px; font-size: 12px; color: var(--text-muted); font-style: italic; }
.ch-section-caret { display: inline-block; width: 10px; }

/* ── Filter UX (issue #966) ────────────────────────────────────────────── */
.fux-bar { display: flex; gap: 6px; margin-top: 4px; align-items: center; flex-wrap: wrap; position: relative; }
.fux-help-btn,
.fux-saved-trigger { background: var(--input-bg); color: var(--text); border: 1px solid var(--border); border-radius: 4px; padding: 2px 8px; font-size: 12px; cursor: pointer; }
.fux-help-btn:hover,
.fux-saved-trigger:hover { background: var(--bg-hover, var(--surface)); }

.fux-popover { position: fixed; top: 60px; right: 24px; width: min(720px, 92vw); max-height: 80vh; overflow: auto; background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 10px 40px rgba(0,0,0,0.35); z-index: var(--z-modal); padding: 0; }
/* #1122: when help is opened inside .modal-overlay (real modal/backdrop),
   reset the absolute positioning so the flex-centered overlay places it.
   Also neutralise .modal default padding so the sticky header sits flush. */
.modal-overlay > .fux-popover { position: relative; top: auto; right: auto; left: auto; bottom: auto; padding: 0; max-width: min(720px, 92vw); width: min(720px, 92vw); }
.modal.fux-popover { padding: 0; }
.fux-help-overlay { z-index: var(--z-modal); }
/* #1124: keep the help modal inside the viewport. The backdrop alone is
 * enough visual separation; rows underneath stay rendered. */
.modal-overlay > .fux-popover { max-height: 80vh; overflow-y: auto; }

/* #1124 (MAJOR-1): overflow pill rendered when path chips exceed the
 * row's height cap. Visual style mirrors the #1056 TableResponsive pill. */
.path-overflow-pill {
  display: inline-flex; align-items: center;
  flex: 0 0 auto;
  margin-left: 4px;
  padding: 1px 6px;
  font-family: var(--mono); font-size: 10px; font-weight: 600;
  color: var(--text-muted);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
}
.path-overflow-pill:hover { color: var(--text); background: var(--bg-hover, var(--surface)); }
.path-popover {
  position: absolute; z-index: var(--z-popover);
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  padding: 8px 10px; max-width: min(360px, calc(100vw - 32px)); max-height: 240px; overflow: auto;
  font-family: var(--mono); font-size: 12px;
}
.path-popover .path-popover-title { font-family: var(--font); font-size: 11px; color: var(--text-muted); margin-bottom: 4px; }
.path-popover .hop, .path-popover .hop-named { white-space: nowrap; }
.fux-popover-header { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--surface); }
.fux-popover-close { background: transparent; border: none; color: var(--text-muted); font-size: 16px; cursor: pointer; padding: 0 4px; }
.fux-popover-close:hover { color: var(--text); }
.fux-popover-body { padding: 12px 16px; font-size: 13px; }
.fux-popover-body h3,
.fux-popover-body h4 { margin: 12px 0 6px; }
.fux-table { width: 100%; border-collapse: collapse; font-size: 12px; margin: 4px 0 12px; }
.fux-table th,
.fux-table td { text-align: left; padding: 4px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.fux-table th { color: var(--text-muted); font-weight: 600; }
.fux-mono { font-family: var(--mono); font-size: 12px; }
.fux-examples { margin: 4px 0; padding-left: 20px; }
.fux-examples li { margin: 2px 0; }

.fux-ac-dropdown { position: absolute; left: 0; right: 0; top: 100%; background: var(--surface); border: 1px solid var(--border); border-radius: 4px; max-height: 280px; overflow-y: auto; z-index: var(--z-dropdown); box-shadow: 0 4px 12px rgba(0,0,0,0.25); margin-top: 2px; }
.fux-ac-item { padding: 4px 10px; display: flex; justify-content: space-between; gap: 12px; cursor: pointer; font-size: 12px; }
.fux-ac-item:hover,
.fux-ac-item.active { background: var(--bg-hover, rgba(120,160,255,0.12)); }
.fux-ac-val { font-family: var(--mono); color: var(--text); }
.fux-ac-desc { color: var(--text-muted); font-size: 11px; max-width: 60%; text-align: right; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.fux-ctx-menu { position: absolute; background: var(--surface); border: 1px solid var(--border); border-radius: 4px; box-shadow: 0 4px 14px rgba(0,0,0,0.35); z-index: var(--z-tooltip); min-width: 200px; padding: 4px 0; }
.fux-ctx-item { display: block; width: 100%; text-align: left; background: transparent; border: none; color: var(--text); padding: 5px 12px; font-size: 12px; cursor: pointer; font-family: var(--mono); }
.fux-ctx-item:hover { background: var(--bg-hover, rgba(120,160,255,0.12)); }

.fux-saved-menu { position: absolute; top: 100%; left: 0; min-width: 320px; background: var(--surface); border: 1px solid var(--border); border-radius: 6px; z-index: var(--z-dropdown); box-shadow: 0 4px 14px rgba(0,0,0,0.3); margin-top: 4px; padding: 4px 0; }
.fux-saved-menu.hidden { display: none; }
.fux-saved-header { padding: 6px 10px; font-size: 11px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; border-bottom: 1px solid var(--border); }
.fux-saved-item { display: flex; align-items: center; gap: 8px; padding: 5px 10px; cursor: pointer; font-size: 12px; }
.fux-saved-item:hover { background: var(--bg-hover, rgba(120,160,255,0.12)); }
.fux-saved-name { font-weight: 600; min-width: 120px; }
.fux-saved-expr { color: var(--text-muted); font-size: 11px; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fux-saved-del { background: transparent; border: none; color: var(--text-muted); font-size: 12px; cursor: pointer; padding: 0 4px; }
.fux-saved-del:hover { color: var(--status-red, #ef4444); }
.fux-saved-footer { border-top: 1px solid var(--border); padding: 4px 0; }
.fux-saved-save { display: block; width: 100%; text-align: left; background: transparent; border: none; color: var(--text); padding: 6px 10px; font-size: 12px; cursor: pointer; }
.fux-saved-save:hover { background: var(--bg-hover, rgba(120,160,255,0.12)); }

td[data-filter-field] { cursor: context-menu; }

/* === Issue #1064 — Edge-swipe nav drawer ============================
 * Slide-over from the LEFT edge. Z-index sits ABOVE bottom-nav (1200)
 * but BELOW modal (var(--z-modal) = 9100). Fenced for parallel-PR
 * coordination with #1062 (gesture handlers / swipe-affordance section).
 * --------------------------------------------------------------------- */

/* `pan-y` lets vertical scroll work everywhere; the drawer claims
 * horizontal swipes inside our viewport. iOS browser back-swipe (system
 * left-edge gesture) still works — it's at the OS layer, above the page.
 *
 * Mesh-Op review (PR #1184): scope this to wide viewports only. At
 * ≤768px the drawer is `display:none` (Option A), so this rule does
 * nothing useful and would block horizontal panning gestures the future
 * gesture system (#1185) might want to claim. */
@media (min-width: 769px) {
  body { touch-action: pan-y; }
}

.nav-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1250; /* above bottom-nav (1200), below modal-backdrop (9000) */
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease;
}
.nav-drawer-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

.nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: min(320px, 86vw);
  max-width: 360px;
  background: var(--surface);
  color: var(--text);
  border-right: 1px solid var(--border);
  box-shadow: 4px 0 18px rgba(0, 0, 0, 0.35);
  z-index: 1260; /* above its backdrop, still below modal */
  transform: translateX(-100%);
  transition: transform 220ms cubic-bezier(0.2, 0.7, 0.2, 1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  outline: none;
}
.nav-drawer.is-open { transform: translateX(0); }

.nav-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2, var(--surface));
}
.nav-drawer-title {
  font-weight: 700;
  font-size: var(--fs-md);
  color: var(--text);
  letter-spacing: 0.02em;
}
.nav-drawer-close {
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 22px;
  line-height: 1;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  cursor: pointer;
  touch-action: manipulation;
}
.nav-drawer-close:hover,
.nav-drawer-close:focus-visible {
  background: var(--bg-hover, rgba(120, 160, 255, 0.12));
  outline: none;
}

.nav-drawer-list {
  display: flex;
  flex-direction: column;
  padding: 6px 0;
  overflow-y: auto;
  flex: 1;
}
.nav-drawer-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 18px;
  color: var(--text);
  text-decoration: none;
  font-size: var(--fs-md);
  min-height: 48px;
  touch-action: manipulation;
}
.nav-drawer-item:hover,
.nav-drawer-item:focus-visible {
  background: var(--bg-hover, rgba(120, 160, 255, 0.12));
  outline: none;
}
.nav-drawer-icon {
  font-size: 18px;
  line-height: 1;
  width: 24px;
  text-align: center;
  flex: none;
}
.nav-drawer-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Option A: drawer is wide-only (>768px). At ≤768px the bottom-nav has
 * the More tab (PR #1174) — drawer is hidden + script bails on open(). */
@media (max-width: 768px) {
  .nav-drawer,
  .nav-drawer-backdrop { display: none !important; }
}

/* Reduced motion: instant snap, no transition. */
@media (prefers-reduced-motion: reduce) {
  .nav-drawer { transition: none; }
  .nav-drawer-backdrop { transition: none; }
}
/* === end #1064 ====================================================== */

/* === #1062 Touch Gestures ============================================
 * Visual affordances for touch-gestures.js. CSS variables only — no
 * hardcoded colors. body owns vertical scroll natively (touch-action: pan-y);
 * the bottom-nav opts out so we manage horizontal swipes on it.
 * ==================================================================== */
body { touch-action: pan-y; }
[data-bottom-nav] { touch-action: none; }

.row-swiping { transition: transform 180ms ease-out; }
.row-action-overlay {
  position: fixed;
  z-index: 1500;
  display: flex;
  align-items: stretch;
  gap: 0;
  background: var(--card-bg, #1a1a1a);
  border: 1px solid var(--border, #333);
  border-radius: 6px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 180ms ease-out, transform 180ms ease-out;
  pointer-events: auto;
}
.row-action-overlay.row-action-overlay-open {
  opacity: 1;
  transform: translateX(0);
}
.row-action-overlay[hidden] { display: none; }
.row-action-btn {
  flex: 1 1 auto;
  background: transparent;
  border: none;
  color: var(--text, #e7e7e7);
  padding: 0 12px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  min-height: 48px;
  border-right: 1px solid var(--border, #333);
}
.row-action-btn:last-child { border-right: none; }
.row-action-btn:hover { background: var(--bg-hover, rgba(120, 160, 255, 0.12)); }
.row-action-btn:active { background: var(--accent-bg, rgba(0, 122, 255, 0.18)); }

@media (prefers-reduced-motion: reduce) {
  .row-swiping,
  .row-action-overlay { transition: none !important; }
}
/* === end #1062 ====================================================== */

/* === Issue #1065 — Gesture discoverability hints =================== */
/* width:fit-content makes the pill shrink to its content; without it
 * the wrap defaults to block (100% of body width). Combined with
 * .gesture-hint-bottom { left:50%; transform:translateX(-50%) } that
 * pushed the wrap off-screen-left on narrow viewports (#1065 follow-up).
 * Comments live ABOVE the rule body, not interleaved, because a stray
 * em-dash or sequence inside the body has historically caused some CSS
 * parsers to drop the entire rule from the CSSOM. */
.gesture-hint {
  position: fixed;
  z-index: 9999;
  width: -moz-fit-content;
  width: fit-content;
  max-width: 360px;
  pointer-events: none !important;
  opacity: 1;
  animation-name: gesture-hint-slide-in;
  animation-duration: 240ms;
  animation-timing-function: ease-out;
  animation-fill-mode: both;
  transition: opacity 320ms ease-out;
}
.gesture-hint-bottom {
  left: 50%;
  bottom: 80px;
  transform: translateX(-50%);
}
.gesture-hint-top {
  left: 50%;
  top: 16px;
  transform: translateX(-50%);
}
.gesture-hint-top-left {
  left: 16px;
  top: 80px;
}
.gesture-hint-inner {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface-2, #1a1a1a);
  color: var(--text, #e7e7e7);
  border: 1px solid var(--border, #333);
  border-radius: 999px;
  padding: 8px 8px 8px 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  font-size: 13px;
  line-height: 1.3;
}
.gesture-hint-text {
  white-space: normal;
}
.gesture-hint-dismiss {
  pointer-events: auto;
  background: var(--accent, #4a9eff);
  color: var(--accent-fg, #fff);
  border: none;
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  flex: 0 0 auto;
}
.gesture-hint-dismiss:hover { filter: brightness(1.1); }
.gesture-hint-fading { opacity: 0; }

@keyframes gesture-hint-slide-in {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}
.gesture-hint-top-left { animation-name: gesture-hint-fade-in; }
@keyframes gesture-hint-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .gesture-hint {
    animation-name: none !important;
    animation-duration: 0s !important;
  }
}
/* === end #1065 ====================================================== */

/* === #1367 Channels chat-app redesign (mobile) ====================== */
/* Mobile (<768px): flat chat-app row list. Full-width 80px rows with
   a hash-colored avatar, bold name, ellipsized last-message preview,
   and right-aligned relative timestamp. No inline action chips. */
.ch-row {
  display: flex; align-items: center; gap: 12px;
  width: 100%; min-height: 80px; height: 80px; padding: 8px 12px;
  background: transparent; border: 0; border-bottom: 1px solid var(--border);
  text-align: left; cursor: pointer; color: var(--text);
  -webkit-tap-highlight-color: rgba(0,0,0,.08);
  touch-action: manipulation;
}
.ch-row:hover { background: var(--row-hover); }
.ch-row.selected { background: var(--selected-bg); }
.ch-row-avatar {
  width: 64px; height: 64px; flex: 0 0 64px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 14px; letter-spacing: 0.5px;
}
.ch-row-body { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.ch-row-line1 {
  display: flex; align-items: baseline; gap: 8px;
  min-width: 0;
}
.ch-row-name {
  flex: 1 1 auto; min-width: 0;
  font-weight: 700; font-size: 15px; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ch-row-time {
  flex: 0 0 auto;
  font-size: 12px; color: var(--text-muted); white-space: nowrap;
  margin-left: auto;
}
.ch-row-preview {
  font-size: 13px; color: var(--text-muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* Detail view chrome (mobile): back chevron + title. */
.ch-back {
  display: none; background: none; border: 0; cursor: pointer;
  color: var(--text); font-size: 24px; line-height: 1;
  min-width: 40px; min-height: 40px; padding: 0 8px;
  border-radius: 6px;
  align-items: center; justify-content: center;
  -webkit-tap-highlight-color: rgba(0,0,0,.08);
  touch-action: manipulation;
}
.ch-back:hover, .ch-back:focus { background: var(--row-hover); outline: none; }

/* Per-message structure additions (mobile + desktop): a colored
   reply-target prefix at the start of the bubble body. */
.ch-reply-target { font-weight: 700; }

/* Mobile-only layout swap: sidebar IS the full screen until a channel
   is opened, then the main pane slides over it. */
@media (max-width: 767px) {
  .ch-layout { position: relative; }
  /* Override the older #1224/#1057 stacking — go full-screen list view. */
  .ch-sidebar {
    width: 100%; max-height: none; height: 100%;
    border-right: none; border-bottom: none;
  }
  .ch-main {
    position: absolute; inset: 0;
    /* Default: hidden behind the sidebar (visibility lets the rect
       still report inset:0 so existing fluid-layout tests see an
       "overlay" — same x/w as the sidebar — instead of an
       off-screen pane). */
    visibility: hidden;
    transform: translateX(0);
    transition: visibility 0s linear 220ms, transform 220ms ease;
    background: var(--content-bg);
    z-index: 2;
  }
  .ch-layout.ch-detail-open .ch-main {
    visibility: visible;
    transition: visibility 0s, transform 220ms ease;
  }
  .ch-back { display: inline-flex; }
  /* When the layout is in list mode, hide the back button (no channel). */
  .ch-layout:not(.ch-detail-open) .ch-back { display: none; }
  /* The channel list now scrolls inside the sidebar at full height. */
  .ch-channel-list { padding-bottom: 24px; }
}
/* === end #1367 ====================================================== */
/* ─── #1374 packet-route map view ───────────────────────────────────
   Role-aware shape markers + sequence-number badges + directional
   arrows + collapsible legend. WCAG SC 1.3.1 / 1.4.3 / 1.4.11 AA.
   - Marker badge background uses --mc-route-badge-bg / -fg with measured
     contrast ≥ 7:1 against #1a1a1a text on Carto Positron AND Dark
     Matter (we burn-in #f8fafc fill + #0f172a text — both tiles).
   - Edges use a per-hop HSL gradient as REDUNDANT carrier; the sequence
     number badge is the primary order signal so colorblind users and
     forced-colors users still read the route.
   - `prefers-reduced-motion: reduce` disables marker focus pulse.
   - `forced-colors: active` strips role colors → uses CanvasText/Canvas.
   ----------------------------------------------------------------- */
:root {
  --mc-route-badge-bg: #f8fafc;
  --mc-route-badge-fg: #0f172a;
  --mc-route-badge-border: #1a1a1a;
  --mc-route-label-bg: #f8fafc;
  --mc-route-label-fg: #0f172a;
  --mc-route-label-border: #475569;
  --mc-route-legend-bg: rgba(248, 250, 252, 0.96);
  --mc-route-legend-fg: #0f172a;
  --mc-route-legend-border: #475569;
}
[data-theme="dark"] {
  --mc-route-legend-bg: rgba(15, 23, 42, 0.94);
  --mc-route-legend-fg: #f1f5f9;
  --mc-route-legend-border: #94a3b8;
}

.mc-route-marker-icon { background: transparent !important; border: none !important; }
.mc-route-marker {
  position: relative;
  display: inline-block;
  line-height: 0;
}
.mc-route-marker:focus {
  outline: 3px solid #06b6d4;
  outline-offset: 2px;
  border-radius: 50%;
}
.mc-route-marker.ch-unresolved {
  opacity: 0.65;
  filter: grayscale(0.8);
}
.mc-route-seq-badge {
  position: absolute;
  bottom: -4px;
  right: -4px;
  min-width: 16px;
  height: 16px;
  padding: 0 3px;
  background: var(--mc-route-badge-bg);
  color: var(--mc-route-badge-fg);
  border: 1.5px solid var(--mc-route-badge-border);
  border-radius: 8px;
  font: 700 10px/14px system-ui, sans-serif;
  text-align: center;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
  pointer-events: none;
}
.mc-route-label-icon { background: transparent !important; border: none !important; }
.mc-route-label {
  display: inline-block;
  padding: 1px 6px;
  background: var(--mc-route-label-bg);
  color: var(--mc-route-label-fg);
  border: 1px solid var(--mc-route-label-border);
  border-radius: 3px;
  font: 600 11px/14px system-ui, sans-serif;
  white-space: nowrap;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}
.mc-route-edge {
  fill: none;
}
.mc-route-legend {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 700;
  max-width: 240px;
  background: var(--mc-route-legend-bg);
  color: var(--mc-route-legend-fg);
  border: 1px solid var(--mc-route-legend-border);
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  font: 12px/1.4 system-ui, sans-serif;
}
.mc-route-legend-toggle {
  display: block;
  width: 100%;
  padding: 6px 10px;
  background: transparent;
  color: inherit;
  border: 0;
  border-bottom: 1px solid var(--mc-route-legend-border);
  font: 700 12px/1.2 system-ui, sans-serif;
  text-align: left;
  cursor: pointer;
}
.mc-route-legend-toggle:focus { outline: 2px solid #06b6d4; outline-offset: 1px; }
.mc-route-legend-toggle[aria-expanded="false"] + .mc-route-legend-body { display: none; }
.mc-route-legend-body { padding: 8px 10px; }
.mc-route-legend-list { list-style: none; padding: 0; margin: 4px 0; }
.mc-route-legend-entry {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 2px 0;
}
.mc-route-legend-swatch svg { display: block; }
.mc-route-legend-glyph {
  display: inline-block;
  width: 14px;
  text-align: center;
  font-weight: 700;
  color: var(--mc-route-legend-fg);
}
.mc-route-legend-gradient {
  display: inline-block;
  width: 32px;
  height: 8px;
  border-radius: 2px;
  background: linear-gradient(90deg, hsl(152,70%,50%), hsl(18,70%,58%));
  border: 1px solid var(--mc-route-legend-border);
}
.mc-route-legend-section {
  margin-top: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--mc-route-legend-fg);
  opacity: 0.75;
}
.mc-route-resolved-badge {
  display: inline-block;
  padding: 2px 6px;
  margin-bottom: 4px;
  background: #fef3c7;
  color: #78350f;
  border: 1px solid #92400e;
  border-radius: 3px;
  font: 700 11px/14px system-ui, sans-serif;
}
.mc-route-context-label {
  position: absolute;
  top: 12px;
  left: 60px;
  z-index: 700;
  padding: 4px 8px;
  background: var(--mc-route-legend-bg);
  color: var(--mc-route-legend-fg);
  border: 1px solid var(--mc-route-legend-border);
  border-radius: 4px;
  font: 600 11px/1.3 system-ui, sans-serif;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}
.mc-route-popup .mc-route-popup-title {
  font: 700 13px/1.3 system-ui, sans-serif;
  margin-bottom: 4px;
  color: var(--text, #0f172a);
}
.mc-route-popup .mc-route-popup-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font: 11px/1.4 system-ui, sans-serif;
  color: var(--text-muted, #475569);
}
.mc-route-popup .mc-route-popup-row b,
.mc-route-popup .mc-route-popup-row code {
  color: var(--text, #0f172a);
}
.mc-route-popup-link {
  color: var(--accent, #0ea5e9);
  font-size: 11px;
  text-decoration: underline;
}

@media (prefers-reduced-motion: reduce) {
  .mc-route-marker,
  .mc-route-edge { transition: none !important; animation: none !important; }
}
@media (forced-colors: active) {
  .mc-route-marker svg circle,
  .mc-route-marker svg rect,
  .mc-route-marker svg polygon { stroke: CanvasText !important; }
  .mc-route-seq-badge,
  .mc-route-label,
  .mc-route-legend,
  .mc-route-context-label {
    background: Canvas !important;
    color: CanvasText !important;
    border-color: CanvasText !important;
  }
  .mc-route-edge { stroke: CanvasText !important; }
}

/* ===========================================================================
   Issue #1369 — embed mode (?embed=1 on /#/map and /#/channels)
   Hide all chrome for full-bleed cross-domain iframe embeds. body.embed is
   toggled in app.js navigate() based on shouldEmbedRoute().
   =========================================================================== */
body.embed .top-nav,
body.embed [data-bottom-nav],
body.embed .nav-drawer,
body.embed .nav-drawer-backdrop { display: none !important; }
body.embed { padding: 0 !important; margin: 0 !important; }
/* App container occupies full viewport in embed mode — top-nav (52px) and
   bottom-nav reserve are gone, so reclaim the full dvh. */
body.embed #app.app-fixed {
  height: 100vh !important;
  height: 100dvh !important;
}

/* #1504 — Path symbols legend disclosure (subtle inline key, shared by Packets + Nodes). */
.path-symbols-legend-wrapper {
  margin: 4px 0 6px;
  text-align: right;
}
.path-symbols-legend {
  position: relative; /* anchor for absolutely-positioned .path-legend-list */
  display: inline-block;
  margin-left: 6px;
  font-weight: normal;
  font-size: 11px;
  vertical-align: middle;
}
.path-symbols-legend > summary {
  display: inline-block;
  cursor: pointer;
  color: var(--text-muted, #888);
  list-style: none;
  border-bottom: 1px dotted currentColor;
  user-select: none;
}
.path-symbols-legend > summary::-webkit-details-marker { display: none; }
.path-symbols-legend > summary::marker { content: ''; }
.path-symbols-legend > summary::before { content: 'ⓘ '; opacity: 0.7; }
.path-symbols-legend[open] > summary { color: var(--text, inherit); }
.path-symbols-legend .path-legend-list {
  position: absolute;
  z-index: 50;
  margin: 4px 0 0;
  padding: 8px 12px;
  list-style: none;
  background: var(--bg-card, var(--bg, #fff));
  border: 1px solid var(--border, #ddd);
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  font-size: 11px;
  line-height: 1.5;
  max-width: 360px;
  color: var(--text, inherit);
}
.path-symbols-legend .path-legend-list li { padding: 2px 0; }
.path-symbols-legend .path-legend-glyph {
  display: inline-block;
  min-width: 1.6em;
  font-weight: 600;
}

/* ============================================================
 * warmup-banner.js (#1660) — global server warm-up status pill.
 * a11y: role="status" live region in JS; CSS makes it visible.
 * All colors via CSS variables — customizer-safe.
 * ============================================================ */
.warmup-banner {
  position: sticky;
  top: 0;
  z-index: 9000;
  background: var(--warn-bg, #fef3c7);
  color: var(--warn-text, #92400e);
  border-bottom: 1px solid var(--warning, #eab308);
  font-size: 0.9rem;
  line-height: 1.4;
  transition: opacity 0.4s ease, max-height 0.4s ease;
  opacity: 1;
  max-height: 240px;
  overflow: hidden;
}
.warmup-banner--hidden {
  opacity: 0;
  max-height: 0;
  border-bottom-width: 0;
  pointer-events: none;
}
.warmup-banner__inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.4rem 1rem;
}
.warmup-banner__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.warmup-banner__item {
  margin: 0;
  padding: 0.1rem 0;
}

/* ============================================================
 * #1715 — Neighbor-graph role swatches (`#ngRoleChecks` labels).
 *
 * Replaces inline `style="color:#..."` spans (which bypassed the
 * theme tokens entirely and produced different contrast results
 * on light vs dark) with class-based DOM. The `--role-*` tokens
 * are defined per-theme in :root + [data-theme="dark"] above and
 * clear WCAG AA ≥4.5:1 against #ffffff (light) and #1a1a2e (dark).
 * Never reintroduce inline color hex on these swatches.
 * ============================================================ */
.role-swatch        { color: var(--text, inherit); }
.role-swatch--repeater  { color: var(--role-repeater); }
.role-swatch--companion { color: var(--role-companion); }
.role-swatch--room      { color: var(--role-room); }
.role-swatch--sensor    { color: var(--role-sensor); }
.role-swatch--observer  { color: var(--role-observer); }