/* ============================================================================
   Web App Blueprint · Design System
   ----------------------------------------------------------------------------
   Single-file CSS framework for the shell and content pages. Organized as:
     1. THEME         → user-overridable brand tokens (edit these to re-skin)
     2. TOKENS        → derived design tokens (colours, spacing, radii, type)
     3. BASE          → reset, typography, html/body, icons, scrollbars
     4. PRIMITIVES    → buttons, chips, inputs, avatars, icon-btn
     5. SHELL         → topbar, workspace, left/right/bottom panels, footer
     6. PAGE: CANVAS  → main app canvas wireframe styles
     7. PAGE: CHANGELOG → vercel-style release notes
     8. MOBILE NAV    → bottom nav bar (mobile only)
     9. RESPONSIVE    → tablet & mobile breakpoints
   ============================================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* Cross-browser form-control reset so buttons styled by class don't inherit
   the browser's default gray pill appearance. Native behaviour (focus, click)
   stays intact; visuals come entirely from the class-based styles below. */
button, [type="button"], [type="submit"], [type="reset"] {
  appearance: none;
  background: transparent;
  border: none;
  color: inherit;
  font: inherit;
  line-height: inherit;
  -webkit-tap-highlight-color: transparent;
}
input, select, textarea {
  font: inherit;
  color: inherit;
}
:root { color-scheme: light dark; accent-color: hsl(var(--primary)); }

/* Screen-reader-only skip link, visible when focused */
.skip-link {
  position: fixed;
  top: var(--sp-3); left: var(--sp-3);
  padding: var(--sp-2) var(--sp-4);
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border-radius: var(--r-md);
  font-size: var(--fs-sm);
  font-weight: 600;
  z-index: var(--z-modal);
  text-decoration: none;
  transform: translateY(-200%);
  transition: transform var(--t-fast);
}
.skip-link:focus { transform: translateY(0); outline: 2px solid hsl(var(--primary-foreground)); outline-offset: 2px; }

/* Focus-visible rings for every interactive primitive so keyboard users can
   always locate focus. Built once, applied everywhere via :focus-visible. */
.chip:focus-visible,
.nav-item:focus-visible,
.map-toggle:focus-visible,
.m-nav-btn:focus-visible,
.section-summary-clear:focus-visible,
.version-pill:focus-visible,
.panel-hd:focus-visible,
.left-collapse-tab:focus-visible,
.right-collapse-tab:focus-visible,
.footer-link-btn:focus-visible,
.topbar-logo:focus-visible {
  outline: 2px solid hsl(var(--ring));
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

/* ============================================================================
   1. THEME — override any of these on :root to re-skin the entire app.
   ---------------------------------------------------------------------------
   Example (drop in your page to customise):

       <style>
         :root {
           --primary:   221 83% 53%;
           --accent:    221 83% 53%;
           --radius:    0.75rem;
           --font-sans: 'Inter', sans-serif;
         }
       </style>

   Colours are stored as HSL triplets (no hsl() wrapper) so opacity works:
     background: hsl(var(--primary) / 0.15);
   ============================================================================ */
:root {
  /* ── Brand (edit me) ─────────────────────── */
  --primary:              240 5.9% 10%;     /* dark near-black        */
  --primary-foreground:   0 0% 98%;         /* text on --primary      */
  --accent:               240 4.8% 95.9%;   /* muted accent surface   */
  --accent-foreground:    240 5.9% 10%;
  --info:                 217 91% 50%;      /* links / focus highlight */

  /* ── Typography (edit me) ────────────────── */
  --font-sans: 'Geist', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* ── Radius scale (edit --radius to rescale) */
  --radius: 0.5rem;

  /* ============================================================================
     2. DERIVED TOKENS — built from theme above. Generally no need to edit.
     ============================================================================ */

  /* Surfaces & text (shadcn neutral palette) */
  --background:           0 0% 100%;
  --foreground:           240 10% 3.9%;
  --card:                 0 0% 100%;
  --card-foreground:      240 10% 3.9%;
  --popover:              0 0% 100%;
  --popover-foreground:   240 10% 3.9%;
  --secondary:            240 4.8% 95.9%;
  --secondary-foreground: 240 5.9% 10%;
  --muted:                240 4.8% 95.9%;
  --muted-foreground:     240 3.8% 46.1%;
  --destructive:          0 72% 51%;
  --destructive-foreground: 0 0% 98%;
  --border:               240 5.9% 90%;
  --input:                240 5.9% 90%;
  --ring:                 240 5% 64.9%;

  /* Status */
  --success:              142 65% 30%;
  --success-bg:           142 60% 94%;
  --warning:              32 85% 32%;
  --warning-bg:           38 88% 93%;
  --info-bg:              214 95% 95%;

  /* Backwards-compatible aliases used throughout */
  --bg:        hsl(var(--background));
  --surface:   hsl(var(--card));
  --muted-bg:  hsl(var(--muted));
  --border-c:  hsl(var(--border));
  --border-2:  hsl(240 5.9% 84%);
  --text-1:    hsl(var(--foreground));
  --text-2:    hsl(var(--muted-foreground));
  --text-3:    hsl(240 4% 64%);
  --accent-c:    hsl(var(--primary));
  --accent-lt: hsl(var(--accent));
  --brand:     hsl(var(--primary));
  --brand-lt:  hsl(var(--accent));
  --overlay:   hsl(240 10% 3.9% / 0.45);

  /* Status semantic */
  --green-bg:  hsl(var(--success-bg)); --green-bd: hsl(142 55% 78%); --green-tx: hsl(var(--success));
  --amber-bg:  hsl(var(--warning-bg)); --amber-bd: hsl(35 85% 72%);  --amber-tx: hsl(var(--warning));
  --red-bg:    hsl(0 88% 95%);         --red-bd:   hsl(0 78% 82%);   --red-tx:   hsl(0 72% 42%);
  --blue-bg:   hsl(var(--info-bg));    --blue-bd:  hsl(214 90% 80%); --blue-tx:  hsl(217 91% 45%);
  --violet-bg: hsl(262 85% 96%);       --violet-bd:hsl(262 75% 82%); --violet-tx:hsl(262 70% 46%);

  /* ── Layout ──────────────────────────────── */
  --panel-w:       240px;
  --panel-w-rail:   52px;
  --right-w:       300px;
  --topbar-h:       52px;
  --mobile-nav-h:   68px;

  /* ── Stacking order ─────────────────────────
     Documented in one place so the whole app stack is legible. Leaflet uses
     z-index up to 1000 for its controls, so any UI that must overlay the
     map reads from --z-above-map and above. */
  --z-behind:            -1;
  --z-base:               1;
  --z-leaflet-pane:     400;   /* approximate — Leaflet panes range 200–700 */
  --z-map-hud:          500;   /* in-map HUD (status toast) */
  --z-desktop-panel:     50;
  --z-desktop-panel-tab: 51;   /* reopen-tab on collapsed panel */
  --z-topbar:            99;
  --z-overlay:           49;   /* desktop overlay — below panels */
  --z-dropdown:        1000;   /* autocomplete list */
  --z-above-map:       1050;   /* mobile drawer overlay */
  --z-drawer:          1100;   /* mobile drawer panels */
  --z-mobile-nav:      1200;   /* fixed bottom nav */
  --z-modal:           1500;   /* About / other full-screen dialogs */

  /* ── Spacing ─────────────────────────────── */
  --sp-1:  4px;  --sp-2:  6px;  --sp-3:  8px;
  --sp-4: 10px;  --sp-5: 12px;  --sp-6: 16px; --sp-7: 20px;

  /* ── Radius (shadcn: --radius 0.5rem) ────── */
  --radius:    0.5rem;
  --r-xs: calc(var(--radius) - 6px); /* 2px */
  --r-sm: calc(var(--radius) - 4px); /* 4px */
  --r-md: calc(var(--radius) - 2px); /* 6px */
  --r-lg: var(--radius);             /* 8px */
  --r-xl: calc(var(--radius) + 4px); /* 12px */
  --r-pill: 999px;

  /* ── Component heights ───────────────────── */
  --h-btn:      32px;
  --h-btn-sm:   28px;
  --h-input:    32px;
  --h-chip:     20px;
  --h-nav:      32px;
  --h-row:      36px;
  --h-thead:    36px;
  --h-tab:      36px;
  --h-panel-hd: 44px;

  /* ── Typography ──────────────────────────── */
  --fs-xs: 11px; --fs-sm: 12px; --fs-md: 13px; --fs-lg: 14px; --fs-xl: 15px;
  --lh: 1.5;

  /* ── Shadows (shadcn-ish) ────────────────── */
  --shadow-sm: 0 1px 2px 0 hsl(240 10% 3.9% / 0.05);
  --shadow:    0 1px 3px 0 hsl(240 10% 3.9% / 0.08), 0 1px 2px -1px hsl(240 10% 3.9% / 0.06);
  --shadow-md: 0 4px 6px -1px hsl(240 10% 3.9% / 0.08), 0 2px 4px -2px hsl(240 10% 3.9% / 0.05);
  --shadow-lg: 0 10px 15px -3px hsl(240 10% 3.9% / 0.08), 0 4px 6px -4px hsl(240 10% 3.9% / 0.05);

  /* ── Transitions ─────────────────────────── */
  --t-panel: 220ms cubic-bezier(.4,0,.2,1);
  --t-fast:  150ms cubic-bezier(.4,0,.2,1);
}

/* ============================================================================
   DARK THEME — official shadcn dark mode tokens.
   Activated by setting data-theme="dark" on <html>. All downstream aliases
   pick up the new values automatically because they use var() references.
   ============================================================================ */
[data-theme="dark"] {
  --background:           240 10% 3.9%;
  --foreground:           0 0% 98%;
  --card:                 240 10% 3.9%;
  --card-foreground:      0 0% 98%;
  --popover:              240 10% 3.9%;
  --popover-foreground:   0 0% 98%;
  --primary:              0 0% 98%;
  --primary-foreground:   240 5.9% 10%;
  --secondary:            240 3.7% 15.9%;
  --secondary-foreground: 0 0% 98%;
  --muted:                240 3.7% 15.9%;
  --muted-foreground:     240 5% 64.9%;
  --accent:               240 3.7% 15.9%;
  --accent-foreground:    0 0% 98%;
  --destructive:          0 62.8% 30.6%;
  --destructive-foreground: 0 0% 98%;
  --border:               240 3.7% 15.9%;
  --input:                240 3.7% 15.9%;
  --ring:                 240 4.9% 83.9%;

  /* Status (dimmed for dark background) */
  --success:              142 65% 58%;
  --success-bg:           142 55% 13%;
  --warning:              38 95% 62%;
  --warning-bg:           35 70% 13%;
  --info:                 217 92% 62%;
  --info-bg:              217 70% 14%;

  /* Aliases that were hard-coded in light mode */
  --border-2:  hsl(240 3.7% 25%);
  --text-3:    hsl(240 5% 55%);
  --overlay:   hsl(0 0% 0% / 0.6);

  /* Status chip border/bg overrides */
  --green-bd: hsl(142 40% 26%);
  --amber-bd: hsl(35 55% 26%);
  --red-bd:   hsl(0 55% 30%);
  --blue-bd:  hsl(217 55% 30%);
  --red-bg:   hsl(0 60% 13%);
  --violet-bg: hsl(262 55% 15%);
  --violet-bd: hsl(262 50% 30%);
  --violet-tx: hsl(262 85% 72%);
}

/* Canvas area dot-grid inverts in dark mode */
[data-theme="dark"] .canvas-area {
  background-color: hsl(240 6% 7%);
  background-image: radial-gradient(circle, hsl(240 5% 18%) 1px, transparent 1px);
}
[data-theme="dark"] .c-thead   { background: hsl(240 6% 8%); }
[data-theme="dark"] .cl-hero {
  background: hsl(240 6% 7%);
  background-image: radial-gradient(circle, hsl(240 5% 18%) 1px, transparent 1px);
}
[data-theme="dark"] .cl-footer-alt,
[data-theme="dark"] .changelog-area { background: hsl(var(--background)); }

/* Theme toggle icon visibility */
.theme-toggle .theme-icon-light { display: none; }
.theme-toggle .theme-icon-dark  { display: block; }
[data-theme="dark"] .theme-toggle .theme-icon-light { display: block; }
[data-theme="dark"] .theme-toggle .theme-icon-dark  { display: none; }

html, body { height: 100%; }
body {
  font-family: var(--font-sans);
  font-size: var(--fs-md);
  line-height: var(--lh);
  background: var(--bg);
  color: var(--text-1);
  height: 100vh;           /* fallback */
  height: 100svh;          /* small — never overflows mobile chrome */
  height: 100dvh;          /* dynamic — expands/shrinks with address bar */
  display: flex;
  flex-direction: column;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.005em;
  /* iOS rubber-band and touch tweaks */
  overscroll-behavior: none;
  -webkit-text-size-adjust: 100%;
}
/* Lock background scroll while a mobile drawer is open */
body.drawer-open { overflow: hidden; touch-action: none; }

/* Lucide-style icons */
.icon {
  width: 16px; height: 16px;
  stroke: currentColor; fill: none;
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
  flex-shrink: 0;
}
.icon-sm { width: 14px; height: 14px; }
.icon-xs { width: 12px; height: 12px; }

button { font-family: inherit; }

/* ══════════════════════════════════════════════
   TOPBAR
══════════════════════════════════════════════ */
.topbar {
  height: var(--topbar-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border-c);
  display: flex;
  align-items: center;
  padding: 0 var(--sp-6);
  padding-left: calc(var(--sp-6) + env(safe-area-inset-left, 0px));
  padding-right: calc(var(--sp-6) + env(safe-area-inset-right, 0px));
  gap: var(--sp-3);
  flex-shrink: 0;
  z-index: var(--z-topbar);
}
.topbar-logo {
  font-size: var(--fs-lg); font-weight: 600; letter-spacing: -.02em;
  color: var(--text-1);
  display: flex; align-items: center; gap: var(--sp-3);
  margin-right: var(--sp-2);
}
.logo-mark {
  width: 26px; height: 26px;
  background: hsl(var(--primary)); border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  color: hsl(var(--primary-foreground));
}
.logo-mark svg { width: 14px; height: 14px; }
.topbar-divider { width: 1px; height: 20px; background: var(--border-c); margin: 0 var(--sp-1); flex-shrink: 0; }
.breadcrumb {
  display: flex; align-items: center; gap: var(--sp-2);
  font-size: var(--fs-md); color: var(--text-3); line-height: 1;
}
.breadcrumb span { color: var(--text-2); font-weight: 400; }
.breadcrumb span:last-child { color: var(--text-1); font-weight: 500; }
.topbar-spacer { flex: 1; }
.topbar-search {
  height: var(--h-btn); width: 220px;
  background: var(--surface); border: 1px solid var(--border-c); border-radius: var(--r-md);
  display: flex; align-items: center; gap: var(--sp-3);
  padding: 0 var(--sp-4);
  font-size: var(--fs-md); color: var(--text-3); cursor: text;
  transition: border-color var(--t-fast), box-shadow var(--t-fast); flex-shrink: 0;
}
.topbar-search:hover { border-color: var(--border-2); }
.topbar-search:focus-within { border-color: hsl(var(--ring)); box-shadow: 0 0 0 3px hsl(var(--ring) / 0.15); }
.topbar-search .kbd {
  margin-left: auto;
  font-family: var(--font-mono); font-size: 10px;
  color: var(--text-3);
  border: 1px solid var(--border-c); border-radius: var(--r-sm);
  padding: 1px 5px; background: var(--muted-bg);
  line-height: 1;
}

/* Buttons (shadcn) */
.btn {
  height: var(--h-btn); padding: 0 var(--sp-5);
  border: 1px solid transparent; background: transparent;
  border-radius: var(--r-md);
  font-family: inherit; font-size: var(--fs-md); font-weight: 500; line-height: 1;
  color: var(--text-1); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2);
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast), opacity var(--t-fast);
  white-space: nowrap; flex-shrink: 0;
  user-select: none;
  text-decoration: none;
}
a.btn, a.btn:hover, a.btn:visited { text-decoration: none; color: var(--text-1); }
a.btn-primary, a.btn-primary:hover, a.btn-primary:visited { color: hsl(var(--primary-foreground)); }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px hsl(var(--ring) / 0.5); }
.btn-outline {
  background: var(--surface); border-color: var(--border-c); color: var(--text-1);
  box-shadow: var(--shadow-sm);
}
.btn-outline:hover { background: var(--muted-bg); }
.btn-ghost { color: var(--text-2); }
.btn-ghost:hover { background: var(--muted-bg); color: var(--text-1); }
.btn-primary {
  background: hsl(var(--primary)); color: hsl(var(--primary-foreground));
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: hsl(var(--primary) / 0.9); }
.btn-sm { height: var(--h-btn-sm); padding: 0 var(--sp-4); font-size: var(--fs-sm); }
.btn-icon { width: var(--h-btn); padding: 0; }
.btn-icon.btn-sm { width: var(--h-btn-sm); }

/* Mobile visibility utility — apply to non-essential topbar items */
.hide-mobile { /* visible by default; hidden at ≤640px (see responsive block) */ }

.avatars { display: flex; align-items: center; }
.avatar {
  width: 28px; height: 28px; border-radius: var(--r-pill);
  border: 2px solid var(--surface); margin-left: -8px;
  font-size: var(--fs-xs); font-weight: 600; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  color: #fff; flex-shrink: 0;
}
.avatars .avatar:first-child { margin-left: 0; }

/* ══════════════════════════════════════════════
   WORKSPACE SHELL
══════════════════════════════════════════════ */
.workspace { flex: 1; display: flex; overflow: hidden; position: relative; }

/* OVERLAY */
.overlay {
  display: none;
  position: fixed; inset: 0; z-index: var(--z-overlay);
  height: 100dvh;
  background: var(--overlay); opacity: 0;
  transition: opacity var(--t-panel);
  backdrop-filter: blur(2px);
  pointer-events: none;  /* do NOT intercept taps while hidden */
}
.overlay.visible { opacity: 1; pointer-events: auto; }

/* ══════════════════════════════════════════════
   SHARED PANEL PRIMITIVES
══════════════════════════════════════════════ */
.panel-hd {
  width: 100%;
  height: var(--h-panel-hd);
  display: flex; align-items: center;
  padding: 0 var(--sp-6);
  border-bottom: 1px solid var(--border-c);
  gap: var(--sp-2); flex-shrink: 0;
  cursor: pointer;
  user-select: none;
  text-align: left;
  transition: background var(--t-fast);
}
.panel-hd:hover { background: var(--muted-bg); }
.panel-hd-title {
  font-size: var(--fs-sm); font-weight: 600;
  color: var(--text-2); letter-spacing: 0;
  flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: var(--fs-xs);
}
.panel-hd-chevron {
  width: 18px; height: 18px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-3);
  flex-shrink: 0;
  transition: transform var(--t-panel);
}

.icon-btn {
  width: 26px; height: 26px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--r-sm); cursor: pointer;
  color: var(--text-3);
  transition: background var(--t-fast), color var(--t-fast); flex-shrink: 0;
  background: transparent; border: none;
}
.icon-btn:hover { background: var(--muted-bg); color: var(--text-1); }

/* ── Badge / chip system (shadcn badge) ────────────── */
.chip {
  height: var(--h-chip); padding: 0 var(--sp-3);
  border-radius: var(--r-pill);
  font-size: 10.5px; font-weight: 600;
  font-family: inherit; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center;
  white-space: nowrap;
  border: 1px solid transparent;
  background: var(--muted-bg); color: var(--text-2);
  flex-shrink: 0;
  transition: background var(--t-fast);
}
.chip-accent { background: hsl(var(--primary)); color: hsl(var(--primary-foreground)); }
.chip-brand  { background: hsl(var(--info-bg)); color: hsl(var(--info)); border-color: hsl(214 90% 86%); }
.chip-green  { background: var(--green-bg);  border-color: var(--green-bd); color: var(--green-tx); }
.chip-amber  { background: var(--amber-bg);  border-color: var(--amber-bd); color: var(--amber-tx); }
.chip-red    { background: var(--red-bg);    border-color: var(--red-bd);   color: var(--red-tx);   }
.chip-violet { background: var(--violet-bg); border-color: var(--violet-bd);color: var(--violet-tx);}
.chip-outline{ background: transparent; border-color: var(--border-c); color: var(--text-2); }
.chip-dot { width: 6px; height: 6px; border-radius: var(--r-pill); background: currentColor; margin-right: 6px; }

.nav-badge { margin-left: auto; }

/* Clickable logo + version */
a.topbar-logo { text-decoration: none; color: var(--text-1); }
a.topbar-logo:hover .logo-mark { opacity: 0.92; }
a.version-pill { text-decoration: none; cursor: pointer; transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast); }
a.version-pill:hover { background: var(--surface); border-color: var(--border-2); color: var(--text-1); }

/* Version pill in topbar */
.version-pill {
  font-family: var(--font-mono);
  font-size: 10.5px; font-weight: 500; line-height: 1;
  color: var(--text-2);
  background: var(--muted-bg);
  border: 1px solid var(--border-c);
  border-radius: var(--r-pill);
  padding: 3px 8px;
  letter-spacing: -0.01em;
}

/* ══════════════════════════════════════════════
   FOOTER (slim, app-wide)
══════════════════════════════════════════════ */
.app-footer {
  height: 32px;
  flex-shrink: 0;
  background: var(--surface);
  border-top: 1px solid var(--border-c);
  display: flex; align-items: center;
  padding: 0 var(--sp-6);
  gap: var(--sp-5);
  font-size: var(--fs-xs); color: var(--text-3);
  z-index: var(--z-topbar);
}
.app-footer a {
  color: var(--text-2); text-decoration: none; font-weight: 500;
  transition: color var(--t-fast);
  display: inline-flex; align-items: center; gap: 5px;
}
.app-footer a:hover { color: var(--text-1); }
.app-footer .footer-sep { width: 1px; height: 12px; background: var(--border-c); }
.app-footer .footer-spacer { flex: 1; }
.app-footer .footer-meta {
  font-family: var(--font-mono);
  font-size: 10.5px; color: var(--text-3);
  display: inline-flex; align-items: center; gap: 6px;
}
.app-footer .footer-meta::before {
  content: ''; width: 6px; height: 6px; border-radius: var(--r-pill);
  background: var(--green-tx);
}

/* ══════════════════════════════════════════════
   LEFT PANEL
══════════════════════════════════════════════ */
.panel-left {
  width: var(--panel-w);
  background: var(--surface);
  border-right: 1px solid var(--border-c);
  display: flex; flex-direction: column;
  flex-shrink: 0; overflow: hidden;
  transition: width var(--t-panel);
  z-index: var(--z-desktop-panel);
}
.panel-left.collapsed { width: var(--panel-w-rail); }
.panel-left.collapsed .panel-hd-title,
.panel-left.collapsed .panel-search-wrap,
.panel-left.collapsed .nav-label,
.panel-left.collapsed .nav-item-text,
.panel-left.collapsed .nav-badge,
.panel-left.collapsed .nav-indent { display: none; }
.panel-left.collapsed .panel-hd { justify-content: center; padding: 0; }
.panel-left.collapsed .panel-hd-chevron { transform: rotate(180deg); }
.panel-left.collapsed .nav-item {
  padding: 0; justify-content: center; gap: 0;
  margin: 2px var(--sp-2);
}
.panel-left.collapsed .nav-section { margin-top: var(--sp-2); }

.panel-search-wrap { padding: var(--sp-4) var(--sp-4) var(--sp-3); }
.panel-search {
  width: 100%; height: var(--h-input);
  background: var(--surface); border: 1px solid var(--border-c); border-radius: var(--r-md);
  padding: 0 var(--sp-4);
  font-family: inherit; font-size: var(--fs-sm); color: var(--text-1);
  line-height: 1; outline: none;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.panel-search::placeholder { color: var(--text-3); }
.panel-search:focus { border-color: hsl(var(--ring)); box-shadow: 0 0 0 3px hsl(var(--ring) / 0.15); }

.panel-body { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 0 var(--sp-2) var(--sp-5); }

.nav-section { margin-top: var(--sp-4); }
.nav-section:first-child { margin-top: var(--sp-2); }
.nav-label {
  padding: var(--sp-2) var(--sp-4) var(--sp-2);
  font-size: 10.5px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text-3); line-height: var(--lh);
}
.nav-item {
  height: var(--h-nav);
  display: flex; align-items: center; gap: var(--sp-3);
  padding: 0 var(--sp-4);
  cursor: pointer; font-size: var(--fs-md); color: var(--text-2); line-height: 1;
  transition: background var(--t-fast), color var(--t-fast); position: relative;
  border-radius: var(--r-md);
  margin: 1px var(--sp-2);
  font-weight: 500;
}
.nav-item:hover { background: var(--muted-bg); color: var(--text-1); }
.nav-item.active { background: var(--accent-lt); color: var(--text-1); font-weight: 600; }
.nav-item .icon { color: var(--text-3); }
.nav-item:hover .icon, .nav-item.active .icon { color: var(--text-1); }
.nav-item-text { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav-indent { padding-left: 36px; }
.nav-item.active .chip:not(.chip-brand):not(.chip-green):not(.chip-amber):not(.chip-red) {
  background: hsl(var(--primary)); color: hsl(var(--primary-foreground));
}

/* ══════════════════════════════════════════════
   MAIN
══════════════════════════════════════════════ */
.main { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; }

/* ── Canvas ───────────────────────────────── */
.canvas-area {
  flex: 1; overflow: auto;
  display: flex; align-items: flex-start; justify-content: center;
  padding: 32px;
  background-color: hsl(240 5% 97%);
  background-image:
    radial-gradient(circle, hsl(240 5% 88%) 1px, transparent 1px);
  background-size: 24px 24px;
}
/* (Blueprint wireframe placeholder styles .canvas + .c-* + .ck-* removed —
    the London Buses canvas hosts a Leaflet #map directly, so none of the
    card / side-nav / table mock shapes are referenced any more.) */

/* ══════════════════════════════════════════════
   RIGHT PANEL
══════════════════════════════════════════════ */
.panel-right {
  width: var(--right-w);
  background: var(--surface); border-left: 1px solid var(--border-c);
  display: flex; flex-direction: column;
  flex-shrink: 0; overflow: hidden;
  transition: width var(--t-panel);
  z-index: var(--z-desktop-panel);
}
.panel-right.collapsed { width: 0; border-left-width: 0; }
.panel-right.collapsed .panel-hd-chevron { transform: rotate(180deg); }

.right-collapse-tab {
  position: absolute; right: 0; top: 50%;
  transform: translateY(-50%);
  width: 28px; height: 64px;
  background: var(--surface); border: 1px solid var(--border-c);
  border-right: none; border-radius: var(--r-md) 0 0 var(--r-md);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; z-index: var(--z-desktop-panel-tab);
  color: var(--text-3);
  transition: background var(--t-fast), color var(--t-fast), opacity var(--t-panel);
  opacity: 0; pointer-events: none;
  box-shadow: var(--shadow-sm);
}
.panel-right.collapsed + .right-collapse-tab,
.workspace:has(.panel-right.collapsed) .right-collapse-tab {
  opacity: 1; pointer-events: auto;
}
.right-collapse-tab:hover { background: var(--muted-bg); color: var(--text-1); }

.right-tabs {
  height: var(--h-tab); display: flex; align-items: center;
  border-bottom: 1px solid var(--border-c); flex-shrink: 0;
  padding: 0 var(--sp-2);
}
.right-tab {
  flex: 1; height: var(--h-tab);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--fs-sm); font-weight: 500; line-height: 1; color: var(--text-3);
  cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: color var(--t-fast), border-color var(--t-fast); white-space: nowrap;
}
.right-tab.active { color: var(--text-1); border-bottom-color: hsl(var(--primary)); font-weight: 600; }
.right-tab:hover  { color: var(--text-1); }

.right-body { flex: 1; overflow-y: auto; }
.right-section { border-bottom: 1px solid var(--border-c); padding: var(--sp-5) var(--sp-6); }
.right-section:last-child { border-bottom: none; }
.right-section-title {
  font-size: 10.5px; font-weight: 600; color: var(--text-3); letter-spacing: 0.06em; text-transform: uppercase;
  line-height: var(--lh); margin-bottom: var(--sp-4);
  display: flex; justify-content: space-between; align-items: center;
}
.right-section-title .chev { color: var(--text-3); cursor: pointer; line-height: 1; }
.field-row {
  display: flex; align-items: center; gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}
.field-row:last-child { margin-bottom: 0; }
.field-label { font-size: var(--fs-sm); color: var(--text-2); width: 72px; flex-shrink: 0; line-height: 1; font-weight: 500; }
.field-val {
  flex: 1; height: var(--h-input);
  background: var(--surface); border: 1px solid var(--border-c);
  border-radius: var(--r-md); padding: 0 var(--sp-3);
  display: flex; align-items: center;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.field-val input {
  width: 100%; background: transparent; border: none;
  font-family: inherit; font-size: var(--fs-sm); color: var(--text-1);
  line-height: 1; outline: none;
}
.field-val:focus-within { border-color: hsl(var(--ring)); box-shadow: 0 0 0 3px hsl(var(--ring) / 0.15); }
.tag-row { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.activity-list { display: flex; flex-direction: column; gap: var(--sp-5); }
.activity-row { display: flex; align-items: flex-start; gap: var(--sp-3); }
.act-dot {
  width: 8px; height: 8px; border-radius: var(--r-pill);
  background: var(--border-2); flex-shrink: 0; margin-top: 5px;
  box-shadow: 0 0 0 3px var(--surface);
}
.act-dot.ac { background: hsl(var(--info)); }
.act-dot.br { background: var(--green-tx); }
.act-body { display: flex; flex-direction: column; gap: 2px; }
.act-text { font-size: var(--fs-sm); color: var(--text-1); line-height: var(--lh); }
.act-text strong { font-weight: 600; }
.act-time { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--text-3); line-height: var(--lh); }

/* ══════════════════════════════════════════════
   SCROLLBARS
══════════════════════════════════════════════ */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: var(--r-pill); border: 2px solid var(--surface); }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* ══════════════════════════════════════════════
   MOBILE NAV BAR
══════════════════════════════════════════════ */
/* Mobile nav — v2 rebuild. Fixed to viewport bottom so it can't be pushed
   around by layout shifts. Hidden on desktop. */
.m-nav {
  display: none;
  position: fixed;
  left: 0; right: 0;
  bottom: 0;
  height: calc(var(--mobile-nav-h) + env(safe-area-inset-bottom, 0px));
  padding-bottom: env(safe-area-inset-bottom, 0px);
  background: hsl(var(--card));
  border-top: 1px solid var(--border-c);
  box-shadow: 0 -2px 12px hsl(240 10% 3.9% / 0.08);
  z-index: var(--z-mobile-nav); /* mobile nav default fallback */
}
.m-nav-btn {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 3px;
  min-height: 56px;
  padding: 6px 4px;
  border: none; background: transparent;
  color: var(--text-3);
  font-family: inherit; font-size: 10.5px; font-weight: 500;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: color var(--t-fast);
}
.m-nav-btn .icon { width: 22px; height: 22px; }
.m-nav-btn:hover,
.m-nav-btn.is-active { color: var(--text-1); }
.m-nav-btn.is-active .icon { color: hsl(var(--primary)); }

/* Centre 'Map' button: a visual anchor — filled primary pill */
.m-nav-btn.is-primary {
  color: hsl(var(--primary-foreground));
}
.m-nav-btn.is-primary .icon {
  width: 42px; height: 42px;
  padding: 10px;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border-radius: var(--r-pill);
  box-shadow: 0 2px 8px hsl(var(--primary) / 0.35);
  margin-top: -18px; /* raise so it pops above the bar */
}
.m-nav-btn.is-primary span { color: var(--text-2); margin-top: 2px; }
.m-nav-btn.is-primary.is-active .icon { filter: brightness(1.1); }

[data-theme="dark"] .m-nav { box-shadow: 0 -2px 12px hsl(240 10% 3.9% / 0.5); }

/* ══════════════════════════════════════════════
   RESPONSIVE — TABLET  ≤ 900px
══════════════════════════════════════════════ */
@media (max-width: 900px) {
  .topbar-search,
  .topbar-search + .topbar-divider { display: none; }
  .breadcrumb span:not(:last-child),
  .breadcrumb .breadcrumb-sep { display: none; }
  .canvas-area { padding: 20px; }
}

/* ══════════════════════════════════════════════
   RESPONSIVE — MOBILE  ≤ 640px
══════════════════════════════════════════════ */
@media (max-width: 640px) {
  /* Show new mobile nav */
  .m-nav { display: flex; align-items: stretch; }

  /* Leave room above the fixed nav so content isn't hidden behind it */
  .workspace { padding-bottom: calc(var(--mobile-nav-h) + env(safe-area-inset-bottom, 0px)); }

  /* Footer wraps on mobile with comfortable padding */
  .app-footer {
    display: flex; flex-wrap: wrap;
    height: auto; min-height: 40px;
    padding: var(--sp-3) var(--sp-4);
    row-gap: var(--sp-2);
    margin-bottom: calc(var(--mobile-nav-h) + env(safe-area-inset-bottom, 0px));
  }
  .nav-item { height: 40px; }

  /* Drawer panels — larger (92vw up to 380px), sit above the Leaflet map's
     stacking context (Leaflet uses z-index up to 1000), below the mobile nav
     and modals. */
  .panel-left,
  .panel-right {
    position: fixed;
    top: var(--topbar-h);
    bottom: calc(var(--mobile-nav-h) + env(safe-area-inset-bottom, 0px));
    width: min(92vw, 380px) !important;
    transition: transform var(--t-panel), box-shadow var(--t-panel);
    z-index: var(--z-drawer);
    box-shadow: none;
    overscroll-behavior: contain;
  }
  .panel-left  { left: 0;  transform: translateX(-100%); border-right: 1px solid var(--border-c); }
  .panel-right { right: 0; transform: translateX( 100%); border-left:  1px solid var(--border-c); }
  .panel-left.mobile-open,
  .panel-right.mobile-open { transform: translateX(0); box-shadow: var(--shadow-lg); }

  /* Collapse tabs belong on desktop only */
  .left-collapse-tab,
  .right-collapse-tab { display: none !important; }

  .overlay {
    display: block;
    bottom: calc(var(--mobile-nav-h) + env(safe-area-inset-bottom, 0px));
    z-index: var(--z-above-map);
  }

  /* Mobile nav sits on top of everything except full-screen modals */
  .m-nav { z-index: var(--z-mobile-nav); }

  /* Footer — hidden on small screens. The About modal carries the disclaimer
     and credits; the mobile nav handles navigation. */
  .app-footer { display: none !important; }

  /* On mobile, push the theme toggle to the far right of the topbar so it's
     balanced (logo on the left, theme on the right). The topbar-spacer flex
     grows between them. */
  .topbar #themeToggle { order: 99; margin-left: auto; }

  .topbar-divider, .avatars, .breadcrumb,
  .hide-mobile { display: none !important; }

  .canvas-area { padding: 14px; }
}

@media (max-width: 380px) {
  .topbar-logo span { display: none; }
  .canvas-area { padding: var(--sp-3); }
}

/* ============================================================================
   CHANGELOG PAGE
   ============================================================================ */
/* Clickable logo + version */
a.topbar-logo { text-decoration: none; color: var(--text-1); }
a.topbar-logo:hover .logo-mark { opacity: 0.92; }
a.version-pill { text-decoration: none; cursor: pointer; transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast); }
a.version-pill:hover { background: var(--surface); border-color: var(--border-2); color: var(--text-1); }

/* Changelog page main — no shell */
.changelog-main {
  flex: 1; display: flex; flex-direction: column;
  overflow: auto; min-height: 0;
}

/* ══════════════════════════════════════════════
   CHANGELOG PAGE — Vercel-style article list
══════════════════════════════════════════════ */
.changelog-area {
  flex: 1; overflow: auto;
  padding: 72px 32px 120px;
  background: var(--surface);
}
.changelog {
  max-width: 720px; margin: 0 auto;
  display: flex; flex-direction: column;
}

.cl-header {
  display: flex; flex-direction: column; gap: var(--sp-3);
  margin-bottom: 72px;
}
.cl-eyebrow {
  font-size: var(--fs-xs); font-weight: 500; color: var(--text-3);
  letter-spacing: 0.04em; text-transform: uppercase;
}
.cl-title {
  /* Fluid type: scales smoothly from 26px on tiny phones to 44px on desktop
     without needing the two media-query overrides below. */
  font-size: clamp(1.625rem, 1rem + 2.5vw, 2.75rem);
  font-weight: 600; color: var(--text-1);
  letter-spacing: -0.035em; line-height: 1.05;
}
.cl-sub {
  font-size: var(--fs-lg); color: var(--text-2);
  line-height: 1.6; max-width: 560px; margin-top: var(--sp-2);
}

/* Entry */
.cl-entry {
  padding-bottom: 72px;
  margin-bottom: 72px;
  border-bottom: 1px solid var(--border-c);
}
.cl-entry:last-of-type { border-bottom: none; margin-bottom: 0; padding-bottom: 8px; }

.cl-date {
  font-size: var(--fs-md); color: var(--text-3);
  margin-bottom: var(--sp-4);
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
  display: inline-flex; align-items: center; gap: var(--sp-3);
}
.cl-version {
  display: inline-flex; align-items: center;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs); font-weight: 600;
  color: var(--text-2);
  background: var(--muted-bg);
  border: 1px solid var(--border-c);
  border-radius: var(--r-pill);
  letter-spacing: 0.01em;
}
.cl-entry-title {
  font-size: clamp(1.125rem, 0.9rem + 1.5vw, 1.75rem);
  font-weight: 600;
  color: var(--text-1); letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 24px;
  text-decoration: none;
  display: block;
  transition: color var(--t-fast);
}
.cl-entry-title:hover { color: hsl(var(--info)); }

/* Inline link-styled button inside changelog prose. Used for modal triggers
   (e.g. the Roadmap dialog) so we keep native button semantics without the
   browser's default button chrome. */
.cl-inline-link {
  padding: 0;
  color: hsl(var(--info));
  border-bottom: 1px dashed hsl(var(--info) / 0.4);
  font: inherit;
}
.cl-inline-link:hover { border-bottom-style: solid; }

/* Changelog closing support card — sits after the last entry as a gentle
   "thanks, here's a tip jar" note. Not a banner; matches entry rhythm. */
.cl-support {
  margin-block-start: 72px;
  padding: var(--sp-7);
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border: 1px solid hsl(var(--primary));
  border-radius: var(--r-lg);
  text-align: center;
}
.cl-support__title {
  margin: 0 0 var(--sp-2);
  font-size: clamp(1.125rem, 0.9rem + 0.8vw, 1.375rem);
  font-weight: 600;
  color: hsl(var(--primary-foreground));
  letter-spacing: -0.02em;
}
.cl-support__copy {
  margin: 0 0 var(--sp-5);
  color: hsl(var(--primary-foreground) / 0.75);
  font-size: var(--fs-sm);
  line-height: 1.55;
}
/* Invert the support button inside the dark card so it stays readable:
   a crisp light pill on the dark surface. */
.cl-support .modal-support__link {
  background: hsl(var(--primary-foreground));
  color: hsl(var(--primary));
  border-color: hsl(var(--primary-foreground));
}
.cl-support .modal-support__link:hover { filter: brightness(0.95); }

/* Hero preview — on-theme visual */
.cl-hero {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--border-c);
  border-radius: var(--r-lg);
  background: hsl(240 5% 98%);
  background-image: radial-gradient(circle, hsl(240 5% 88%) 1px, transparent 1px);
  background-size: 18px 18px;
  display: flex; align-items: center; justify-content: center;
  padding: 28px;
  margin-bottom: 28px;
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.cl-hero.dark {
  background: hsl(240 10% 10%);
  background-image: radial-gradient(circle, hsl(240 5% 22%) 1px, transparent 1px);
  border-color: hsl(240 8% 18%);
}

/* Miniature app mock inside hero */
.hero-mock {
  width: 100%; max-width: 520px;
  background: var(--surface);
  border: 1px solid var(--border-c);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  display: flex; flex-direction: column;
}
.cl-hero.dark .hero-mock { background: hsl(240 6% 14%); border-color: hsl(240 8% 22%); }

.hm-bar {
  height: 22px; display: flex; align-items: center;
  gap: 5px; padding: 0 10px;
  border-bottom: 1px solid var(--border-c);
}
.cl-hero.dark .hm-bar { border-color: hsl(240 8% 22%); }
.hm-dot { width: 7px; height: 7px; border-radius: var(--r-pill); background: var(--border-2); }
.cl-hero.dark .hm-dot { background: hsl(240 5% 28%); }
.hm-body { display: flex; min-height: 120px; }
.hm-side {
  width: 90px; border-right: 1px solid var(--border-c);
  padding: 8px 6px; display: flex; flex-direction: column; gap: 4px;
  background: hsl(240 5% 99%);
}
.cl-hero.dark .hm-side { background: hsl(240 8% 12%); border-color: hsl(240 8% 22%); }
.hm-si {
  height: 14px; border-radius: 3px;
  padding: 0 6px; display: flex; align-items: center; gap: 5px;
}
.hm-si.sel { background: var(--accent-lt); }
.cl-hero.dark .hm-si.sel { background: hsl(240 8% 22%); }
.hm-si .d { width: 5px; height: 5px; border-radius: 1.5px; background: var(--border-2); }
.cl-hero.dark .hm-si .d { background: hsl(240 5% 40%); }
.hm-si .l { flex: 1; height: 3px; border-radius: 2px; background: var(--border-c); }
.cl-hero.dark .hm-si .l { background: hsl(240 5% 30%); }
.hm-si.sel .d, .hm-si.sel .l { background: hsl(var(--primary) / 0.6); }
.cl-hero.dark .hm-si.sel .d, .cl-hero.dark .hm-si.sel .l { background: hsl(0 0% 95%); }
.hm-main {
  flex: 1; padding: 12px; display: flex; flex-direction: column; gap: 8px;
}
.hm-title { height: 6px; width: 40%; border-radius: 2px; background: var(--border-2); }
.cl-hero.dark .hm-title { background: hsl(240 5% 40%); }
.hm-cards { display: flex; gap: 6px; }
.hm-card {
  flex: 1; height: 30px; border: 1px solid var(--border-c);
  border-radius: 4px; padding: 5px 6px;
  display: flex; flex-direction: column; gap: 3px; justify-content: space-between;
  background: var(--surface);
}
.cl-hero.dark .hm-card { background: hsl(240 8% 16%); border-color: hsl(240 8% 24%); }
.hm-card.hl { background: hsl(var(--primary)); border-color: hsl(var(--primary)); }
.hm-card .t { height: 3px; width: 50%; border-radius: 2px; background: var(--border-2); }
.hm-card .b { height: 5px; width: 35%; border-radius: 2px; background: var(--border-c); }
.cl-hero.dark .hm-card .t { background: hsl(240 5% 35%); }
.cl-hero.dark .hm-card .b { background: hsl(240 5% 45%); }
.hm-card.hl .t, .hm-card.hl .b { background: hsl(var(--primary-foreground) / 0.6); }
.hm-table { display: flex; flex-direction: column; gap: 3px; margin-top: 2px; }
.hm-row {
  height: 11px; border: 1px solid var(--border-c); border-radius: 3px;
  background: var(--surface);
}
.cl-hero.dark .hm-row { background: hsl(240 8% 16%); border-color: hsl(240 8% 24%); }
.hm-row.sel { background: var(--accent-lt); border-color: var(--accent-lt); }
.cl-hero.dark .hm-row.sel { background: hsl(240 8% 24%); border-color: hsl(240 8% 30%); }

/* Body text */
.cl-body-text {
  font-size: var(--fs-lg); color: var(--text-2);
  line-height: 1.7;
  margin-bottom: var(--sp-5);
}
.cl-body-text + .cl-body-text { margin-top: -4px; }
.cl-body-text strong { color: var(--text-1); font-weight: 600; }
.cl-body-text a {
  color: hsl(var(--info)); text-decoration: none; font-weight: 500;
  border-bottom: 1px solid hsl(var(--info) / 0.3);
  transition: border-color var(--t-fast);
}
.cl-body-text a:hover { border-bottom-color: hsl(var(--info)); }
.cl-body-text code {
  font-family: var(--font-mono); font-size: 0.88em;
  background: var(--muted-bg); border: 1px solid var(--border-c);
  border-radius: var(--r-sm); padding: 1px 6px;
  color: var(--text-1);
}

/* Authors */
.cl-authors {
  display: flex; align-items: center; gap: var(--sp-4);
  margin-top: 28px;
  flex-wrap: wrap;
}
.cl-author {
  display: inline-flex; align-items: center; gap: var(--sp-3);
  font-size: var(--fs-md); color: var(--text-2); font-weight: 500;
  text-decoration: none;
  transition: color var(--t-fast);
}
.cl-author:hover { color: var(--text-1); }
.cl-author-avatar {
  width: 28px; height: 28px; border-radius: var(--r-pill);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 10.5px; font-weight: 600;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .changelog-area { padding: 32px 18px 56px; }
  /* .cl-title and .cl-entry-title scale fluidly via clamp() — no overrides needed */
  .cl-entry { padding-bottom: 44px; margin-bottom: 44px; }
  .cl-header { margin-bottom: 44px; }
  .cl-sub { font-size: var(--fs-md); }
  .cl-body-text { font-size: var(--fs-md); line-height: 1.65; }
  .cl-hero { padding: 16px; border-radius: var(--r-md); }
  .hm-side { display: none; }
  .hm-bar { height: 18px; }
  .hm-main { padding: 8px; gap: 6px; }
  .cl-authors { gap: var(--sp-3); }

  /* Topbar shrink applies to every page */
  .topbar { padding: 0 var(--sp-4); gap: var(--sp-2); }
  .version-pill { display: none; }
}

@media (max-width: 380px) {
  /* .cl-title + .cl-entry-title both scale via clamp() already */
  .cl-date { font-size: var(--fs-sm); }
  .changelog-area { padding: 24px 14px 48px; }
}

/* ============================================================================
   PAGE: LONDON BUSES — project-specific styles layered on top of the blueprint
   ============================================================================ */

/* Map fills the canvas area (override blueprint padding/background) */
.canvas-area#map-wrap { padding: 0; background: none; display: block; position: relative; }
#map { position: absolute; inset: 0; background: hsl(var(--muted)); }
.leaflet-container {
  font-family: var(--font-sans);
  background: hsl(var(--muted));
  /* Let the map handle pan/zoom gestures; prevents iOS double-tap zoom
     from hijacking Leaflet's own zoom control. */
  touch-action: pan-x pan-y;
}
[data-theme="dark"] #map { background: hsl(240 6% 10%); }

/* Left panel lays out as: search (top) → scrolling body → sticky filter bar */
.panel-left { display: flex; flex-direction: column; }
.panel-left .panel-body { flex: 1; overflow-y: auto; padding: 0; }

/* ── Unified panel collapse: both panels collapse fully to width 0 and
      expose a matching reopen tab on their respective edge. ─────────────── */
.panel-left.collapsed  { width: 0 !important; border-right-width: 0 !important; }
.panel-right.collapsed { width: 0 !important; border-left-width: 0 !important; }

/* Common tab styling (left + right). Fixed-positioned + viewport-anchored so
   the tabs sit above the Leaflet stacking context regardless of panel width. */
.left-collapse-tab,
.right-collapse-tab {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 80px;
  display: flex; align-items: center; justify-content: center;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border: 1px solid hsl(var(--primary));
  cursor: pointer;
  z-index: var(--z-above-map);
  opacity: 0; pointer-events: none;
  transition: opacity var(--t-panel);
}
.left-collapse-tab:hover,
.right-collapse-tab:hover { filter: brightness(1.15); }

.right-collapse-tab {
  right: 0;
  border-right: none;
  border-radius: var(--r-md) 0 0 var(--r-md);
  box-shadow: -3px 0 10px hsl(240 10% 3.9% / 0.22);
}
.left-collapse-tab {
  left: 0;
  border-left: none;
  border-radius: 0 var(--r-md) var(--r-md) 0;
  box-shadow:  3px 0 10px hsl(240 10% 3.9% / 0.22);
}

/* Visibility — driven by a JS-set .visible class on the tab (belt-and-braces
   fallback for any browser where the CSS :has() / sibling selectors flake). */
.left-collapse-tab.visible,
.right-collapse-tab.visible { opacity: 1; pointer-events: auto; }

/* Search section */
#search-section {
  padding: var(--sp-4);
  border-bottom: 1px solid var(--border-c);
  display: flex; flex-direction: column; gap: var(--sp-2);
}
#search-field {
  position: relative;
  display: flex; align-items: center;
  height: 32px;
  background: hsl(var(--background));
  border: 1px solid var(--border-c);
  border-radius: var(--r-md);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
#search-field:focus-within {
  border-color: hsl(var(--ring));
  box-shadow: 0 0 0 3px hsl(var(--ring) / 0.18);
}
#search-field .search-icon { position: absolute; left: 8px; color: var(--text-2); pointer-events: none; }
#search-input {
  flex: 1; height: 100%;
  padding: 0 28px 0 30px;
  border: none; outline: none; background: transparent;
  font: inherit; font-size: var(--fs-sm); color: var(--text-1);
}
#search-input::placeholder { color: var(--text-3); }
#search-clear {
  position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  width: 22px; height: 22px; display: inline-flex; align-items: center; justify-content: center;
  border: none; background: transparent; color: var(--text-2);
  border-radius: var(--r-sm); cursor: pointer;
}
#search-clear:hover { background: var(--muted-bg); color: var(--text-1); }

/* Autocomplete */
#autocomplete-list {
  list-style: none; margin: 0; padding: var(--sp-1);
  border: 1px solid var(--border-c); border-radius: var(--r-md);
  background: hsl(var(--popover));
  box-shadow: var(--shadow-md);
  max-height: 240px; overflow-y: auto;
}
#autocomplete-list li {
  display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-sm);
  cursor: pointer;
  font-size: var(--fs-sm);
}
#autocomplete-list li:hover,
#autocomplete-list li[aria-selected="true"] { background: var(--muted-bg); }
#autocomplete-list .ac-id { font-weight: 600; color: var(--text-1); }
#autocomplete-list .ac-id mark { background: hsl(var(--info) / 0.2); color: inherit; border-radius: 2px; padding: 0 2px; }
#autocomplete-list .ac-dest { font-size: var(--fs-xs); color: var(--text-2); text-align: right; }

/* Search pills */
#search-pills { display: flex; flex-wrap: wrap; gap: var(--sp-1); }
.search-pill {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 4px 2px 8px;
  background: hsl(var(--primary) / 0.08);
  border: 1px solid hsl(var(--primary) / 0.2);
  color: hsl(var(--primary));
  border-radius: var(--r-pill);
  font-size: var(--fs-xs); font-weight: 600;
}
.search-pill-remove {
  width: 16px; height: 16px; display: inline-flex; align-items: center; justify-content: center;
  border: none; background: transparent; color: inherit; cursor: pointer;
  border-radius: var(--r-pill); opacity: 0.65;
}
.search-pill-remove:hover { opacity: 1; background: hsl(var(--destructive) / 0.15); }
[data-theme="dark"] .search-pill { background: hsl(var(--primary) / 0.25); color: hsl(var(--primary-foreground)); border-color: hsl(var(--primary) / 0.4); }

/* Filters */
#filters-section {
  padding: var(--sp-4);
  display: flex; flex-direction: column; gap: var(--sp-5);
}

/* Paint-mode segmented control ("Colour routes by: Type | Operator").
   Sits at the top of the filter panel so it reads as a view switch rather
   than another filter to toggle. */
.paint-mode {
  display: flex; flex-direction: column; gap: var(--sp-2);
}
.paint-mode__label {
  font-size: 10.5px; font-weight: 600;
  color: var(--text-3);
  letter-spacing: 0.06em; text-transform: uppercase;
  line-height: var(--lh);
}
.paint-mode__buttons {
  display: inline-flex;
  padding: 2px;
  background: var(--muted-bg);
  border: 1px solid var(--border-c);
  border-radius: var(--r-md);
}
.paint-mode__btn {
  flex: 1;
  padding: 4px 10px;
  font-size: var(--fs-xs); font-weight: 500;
  color: var(--text-2);
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
}
.paint-mode__btn:hover { color: var(--text-1); }
.paint-mode__btn.is-active {
  background: hsl(var(--card));
  color: var(--text-1);
  box-shadow: 0 1px 2px hsl(240 10% 3.9% / 0.08);
}
.filter-group { display: flex; flex-direction: column; gap: var(--sp-2); }
.filter-chips { display: flex; flex-wrap: wrap; gap: 4px; }
.filter-chips .chip {
  cursor: pointer;
  font-size: 11px;
  padding: 2px 8px;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}
.filter-chips .chip[aria-pressed="true"],
.filter-chips .chip.active {
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border-color: hsl(var(--primary));
}
.filter-chips .filter-chip--unknown { opacity: 0.85; font-style: italic; }

/* Garage filter group — visually separated so users can see it's an independent
   overlay control, not another route filter. */
.filter-group-garages {
  margin-top: var(--sp-2);
  padding-top: var(--sp-5);
  border-top: 1px dashed var(--border-c);
}
.filter-group-garages .filter-group-label {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--text-2);
}
.filter-group-garages .filter-group-label .icon-xs { color: var(--text-3); }

/* Per-section summary strip: count on the left, visibility toggle on the right */
.section-summary {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-3);
  margin-top: var(--sp-3);
  padding: var(--sp-2) var(--sp-3);
  background: var(--muted-bg);
  border: 1px solid var(--border-c);
  border-radius: var(--r-md);
  font-size: var(--fs-xs);
}
.section-summary-count { color: var(--text-2); }
.section-summary-count > span { color: var(--text-1); font-weight: 600; }

.section-summary-clear {
  border: none;
  background: transparent;
  color: var(--text-2);
  font: inherit;
  font-size: var(--fs-xs);
  font-weight: 500;
  padding: 2px 8px;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
}
.section-summary-clear:hover { background: hsl(var(--background)); color: var(--text-1); }
.section-summary-clear[hidden] { display: none !important; }

/* Filter bar now only holds the Clear-all button, so right-align it */
#filter-bar { justify-content: flex-end; }

/* Sticky filter bar */
#filter-bar {
  padding: var(--sp-3) var(--sp-4);
  border-top: 1px solid var(--border-c);
  display: flex; align-items: center; justify-content: space-between;
  font-size: var(--fs-xs); color: var(--text-2);
  background: hsl(var(--card));
}
#filter-stat-count,
#filter-stat-garages { color: var(--text-1); font-weight: 600; }
.filter-stat-sep { margin: 0 4px; color: var(--text-3); }
#filter-actions { display: flex; gap: 4px; }

/* Status toast */
#status-toast {
  position: absolute; top: var(--sp-5); left: 50%; transform: translateX(-50%);
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-4);
  background: hsl(var(--popover));
  border: 1px solid var(--border-c);
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-md);
  font-size: var(--fs-xs); color: var(--text-1);
  z-index: var(--z-map-hud);
}
#status-dot { width: 8px; height: 8px; border-radius: 50%; background: hsl(var(--info)); }
#status-toast.loading #status-dot { animation: lb-blink 1s ease-in-out infinite; }
#status-toast.error { color: hsl(var(--destructive)); }
#status-toast.error #status-dot { background: hsl(var(--destructive)); }
@keyframes lb-blink { 50% { opacity: 0.35; } }

/* Route detail */
#route-detail-header { display: flex; align-items: center; gap: var(--sp-4); margin-bottom: var(--sp-4); }
#route-badge-wrap {
  flex: none;
  /* Fluid badge — 40px on phones, 48px on desktop */
  --badge-size: clamp(2.5rem, 2.2rem + 1vw, 3rem);
  inline-size: var(--badge-size); block-size: var(--badge-size);
  display: inline-flex; align-items: center; justify-content: center;
  background: hsl(var(--destructive));
  color: hsl(var(--destructive-foreground));
  border-radius: var(--r-md);
  font-weight: 700; font-size: clamp(1rem, 0.9rem + 0.4vw, 1.125rem);
  letter-spacing: -0.02em;
}
#route-badge-number { line-height: 1; }
#route-detail-meta { display: flex; flex-direction: column; gap: 4px; align-items: flex-start; }
.route-detail__service-tag {
  display: inline-block; padding: 2px 8px;
  font-size: var(--fs-xs); font-weight: 600;
  border-radius: var(--r-pill);
  border: 1px solid var(--border-c);
  background: var(--muted-bg);
  color: var(--text-2);
}
.route-detail__service-tag.night      { background: var(--blue-bg);   color: var(--blue-tx);   border-color: var(--blue-bd); }
.route-detail__service-tag.twentyfour { background: var(--green-bg);  color: var(--green-tx);  border-color: var(--green-bd); }
.route-detail__service-tag.school     { background: var(--amber-bg);  color: var(--amber-tx);  border-color: var(--amber-bd); }
.route-detail__service-tag.prefix     { background: var(--violet-bg); color: var(--violet-tx); border-color: var(--violet-bd); }

/* Endpoints */
#route-endpoints { display: flex; flex-direction: column; gap: 4px; }
.route-endpoint__row { display: flex; align-items: center; gap: var(--sp-3); padding: var(--sp-1) 0; }
.route-endpoint__dot { width: 10px; height: 10px; border-radius: 50%; background: var(--text-3); flex: none; }
.route-endpoint__dot.outbound { background: hsl(var(--destructive)); box-shadow: 0 0 6px hsl(var(--destructive) / 0.4); }
.route-endpoint__dot.inbound  { background: hsl(var(--info)); box-shadow: 0 0 6px hsl(var(--info) / 0.4); }
.route-endpoint__info { display: flex; flex-direction: column; min-width: 0; }
.route-endpoint__direction{ font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-3); }
.route-endpoint__name { font-size: var(--fs-sm); color: var(--text-1); font-weight: 500; }
#ep-connector { position: relative; margin-left: 4px; height: 12px; display: flex; align-items: center; }
.ep-connector-line { width: 2px; height: 100%; background: var(--border-c); margin-left: 4px; }
#dir-toggle-btn {
  position: absolute; left: 22px; top: 50%; transform: translateY(-50%);
  width: 22px; height: 22px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border-c); background: hsl(var(--card));
  color: var(--text-2);
  border-radius: var(--r-pill); cursor: pointer;
  transition: transform var(--t-fast);
}
#dir-toggle-btn:hover { color: var(--text-1); border-color: var(--border-2); }
#dir-toggle-btn.spinning { transform: translateY(-50%) rotate(180deg); }

.route-detail__actions { display: flex; gap: var(--sp-2); flex-wrap: wrap; }
#stops-toggle-btn.active { background: var(--muted-bg); color: var(--text-1); border-color: var(--border-2); }

/* Stats table */
.operator-stats__table { width: 100%; border-collapse: collapse; font-size: var(--fs-xs); }
.operator-stats__table thead th {
  text-align: right; padding: var(--sp-2);
  font-weight: 500; color: var(--text-3);
  border-bottom: 1px solid var(--border-c);
  text-transform: uppercase; letter-spacing: 0.04em; font-size: 10px;
}
.operator-stats__table thead th:first-child { text-align: left; }
.operator-stats__table tbody tr { border-bottom: 1px solid var(--border-c); }
.operator-stats__table tbody tr:last-child { border-bottom: none; }
.operator-stats__table tbody tr:hover { background: var(--muted-bg); }
.operator-stats__table td { padding: var(--sp-2); text-align: right; color: var(--text-1); }
.operator-stats__table td.operator-stats__op { text-align: left; font-weight: 500; }
.operator-stats__empty { color: var(--text-3); font-size: var(--fs-xs); font-style: italic; padding: var(--sp-3) 0; }

/* About modal */
.modal { position: fixed; inset: 0; z-index: var(--z-modal); display: flex; align-items: center; justify-content: center; padding: var(--sp-5); }
.modal[hidden] { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: var(--overlay); backdrop-filter: blur(4px); }
.modal-panel {
  position: relative;
  inline-size: 100%; max-inline-size: 480px;
  max-block-size: min(85dvh, 720px);
  overflow-y: auto;
  background: hsl(var(--card));
  border: 1px solid var(--border-c);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-lg);
  /* Fluid padding — comfy on desktop, tighter on small phones */
  padding: clamp(1rem, 0.6rem + 2vw, 1.25rem);
}
/* Wider variant for dialogs that need a data table (e.g. Roadmap) */
.modal-panel--wide { max-inline-size: 640px; }
.modal-close {
  position: absolute; top: var(--sp-4); right: var(--sp-4);
  width: 26px; height: 26px;
  display: inline-flex; align-items: center; justify-content: center;
  border: none; background: transparent; color: var(--text-2);
  border-radius: var(--r-sm); cursor: pointer;
}
.modal-close:hover { background: var(--muted-bg); color: var(--text-1); }
.modal-header { display: flex; align-items: center; gap: var(--sp-4); margin-bottom: var(--sp-5); }
.modal-brand {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  background: hsl(var(--primary)); color: hsl(var(--primary-foreground));
  border-radius: var(--r-md);
  flex: none;
}
.modal-title { font-size: var(--fs-xl); font-weight: 700; color: var(--text-1); margin: 0; }
.modal-subtitle { font-size: var(--fs-xs); color: var(--text-3); }
.modal-lede { color: var(--text-2); font-size: var(--fs-sm); line-height: 1.55; margin-bottom: var(--sp-5); }
.modal-disclaimer {
  margin: 0 0 var(--sp-6);
  padding: var(--sp-4);
  border: 1px solid var(--amber-bd);
  background: var(--amber-bg);
  color: var(--amber-tx);
  border-radius: var(--r-md);
  font-size: var(--fs-xs);
  line-height: 1.55;
}
.modal-disclaimer strong { color: var(--amber-tx); }

/* Support block inside the About / Roadmap modals — a friendly call-to-action
   in its own soft-card frame so it visually separates from surrounding text. */
.modal-support {
  margin-block-start: var(--sp-5);
  padding: var(--sp-5) var(--sp-6);
  background: var(--muted-bg);
  border: 1px solid var(--border-c);
  border-radius: var(--r-md);
}
.modal-support .modal-section-tag {
  margin-block-end: var(--sp-3);
  color: var(--text-2); /* slightly brighter than the default --text-3 so the
                           label stays legible against the muted-bg frame */
}
.modal-support__copy {
  color: var(--text-1); /* body copy inside the card: full contrast, not muted,
                           because muted-bg already softens the whole block */
  font-size: var(--fs-sm);
  line-height: 1.55;
  margin-block: 0 var(--sp-4);
}
/* Filled blue pill — high contrast against both light muted-bg card and
   dark-mode card. White text / icon is the clearest CTA treatment. */
.modal-support__link {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-5);
  background: hsl(var(--info));
  color: #fff;
  border: 1px solid hsl(var(--info));
  border-radius: var(--r-md);
  font-size: var(--fs-sm); font-weight: 600;
  text-decoration: none;
  transition: transform var(--t-fast), box-shadow var(--t-fast), filter var(--t-fast);
}
.modal-support__link:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); filter: brightness(1.05); }
.modal-support__link .icon-sm { opacity: 0.8; }

.footer-disclaimer { color: var(--text-3); font-style: italic; }
.modal-section { margin-top: var(--sp-6); }
.modal-section-tag {
  display: inline-block; margin-bottom: var(--sp-3);
  font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-3);
}
.credits-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 2px; }
.credits-list li {
  display: flex; justify-content: space-between; align-items: baseline; gap: var(--sp-4);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-sm);
  font-size: var(--fs-sm);
}
.credits-list li:hover { background: var(--muted-bg); }
.credits-list a { color: var(--text-1); text-decoration: none; border-bottom: 1px dashed var(--border-2); }
.credits-list a:hover { color: hsl(var(--info)); border-bottom-color: hsl(var(--info)); }
.credits-plain { color: var(--text-1); font-family: var(--font-mono); font-size: var(--fs-xs); }
.credits-note { color: var(--text-3); font-size: var(--fs-xs); text-align: right; }
.modal-note { margin-top: var(--sp-3); font-size: var(--fs-xs); color: var(--text-2); padding: 0 var(--sp-3); }

/* Footer tweaks */
.footer-link-btn {
  background: none; border: none; padding: 0;
  color: inherit; cursor: pointer;
  font: inherit;
}
.footer-link-btn:hover { color: var(--text-1); }

/* Responsive */
@media (max-width: 640px) {
  .modal-panel { max-block-size: 90dvh; /* padding handled by clamp() */ }
  /* #route-badge-wrap fluid via clamp() — no size override needed */
}

/* ============================================================================
   LONDON BUSES — Leaflet popup overrides (modern shadcn-aligned)
   ============================================================================ */

/* Leaflet popup shell */
.leaflet-popup-content-wrapper {
  background: hsl(var(--popover)) !important;
  color: var(--text-1) !important;
  border: 1px solid var(--border-c) !important;
  border-radius: var(--r-lg) !important;
  box-shadow: var(--shadow-lg) !important;
  padding: 2px !important;
}
.leaflet-popup-tip { background: hsl(var(--popover)) !important; border: 1px solid var(--border-c) !important; }
.leaflet-popup-content {
  margin: var(--sp-4) var(--sp-5) !important;
  font-family: var(--font-sans) !important;
  font-size: var(--fs-sm) !important;
  line-height: 1.4 !important;
  color: var(--text-1) !important;
}
.leaflet-popup-close-button {
  color: var(--text-3) !important;
  top: 6px !important; right: 8px !important;
  font-size: 18px !important; font-weight: 400 !important;
  width: 20px !important; height: 20px !important;
  transition: color var(--t-fast) !important;
}
.leaflet-popup-close-button:hover { color: var(--text-1) !important; background: transparent !important; }

/* Popup meta list — consistent key/value rows (used by garages, stops) */
.map-popup__meta { margin: var(--sp-2) 0 0; display: flex; flex-direction: column; gap: 2px; }
.map-popup__meta > div {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--sp-3);
  align-items: baseline;
  padding: 3px 0;
  border-bottom: 1px solid hsl(var(--border) / 0.6);
}
.map-popup__meta > div:last-child { border-bottom: none; }
.map-popup__meta dt { font-size: var(--fs-xs); color: var(--text-2); font-weight: 500; }
.map-popup__meta dd { margin: 0; font-size: var(--fs-xs); color: var(--text-1); font-weight: 500; text-align: right; }

/* Stop popup (route highlighted) */
.map-popup__name { display: block; font-weight: 600; font-size: var(--fs-sm); color: var(--text-1); margin-bottom: 2px; }
.map-popup__id   { font-size: var(--fs-xs); color: var(--text-3); font-family: var(--font-mono); letter-spacing: 0.04em; }

.map-popup__routes {
  display: flex; flex-wrap: wrap; gap: 4px;
  margin-top: var(--sp-3);
  padding-top: var(--sp-3);
  border-top: 1px solid var(--border-c);
}
.map-popup__route-chip {
  display: inline-flex; align-items: center;
  padding: 2px 8px;
  background: hsl(var(--muted));
  border: 1px solid var(--border-c);
  color: var(--text-1);
  border-radius: var(--r-sm);
  font-size: var(--fs-xs);
  font-weight: 600;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
}
.map-popup__route-chip:hover {
  background: hsl(var(--destructive));
  color: hsl(var(--destructive-foreground));
  border-color: hsl(var(--destructive));
  transform: translateY(-1px);
}

/* Identify popup (map-click: routes here) — uses the standard popup shell
   so it matches the garage popup in padding, radius, and tip. */
.map-id-popup{ min-width: 180px; }
.map-id-popup__label {
  display: block;
  margin-bottom: var(--sp-3);
  padding-bottom: var(--sp-2);
  border-bottom: 1px solid hsl(var(--border) / 0.6);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
}
.map-id-popup__chips {
  display: flex; flex-wrap: wrap; gap: 4px;
}
.map-id-popup__chip {
  display: inline-flex; align-items: center;
  padding: 3px 9px;
  border-radius: var(--r-sm);
  font-size: var(--fs-xs);
  font-weight: 600;
  font-family: var(--font-mono);
  color: #fff;
  background: var(--chip-col, hsl(var(--destructive)));
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--t-fast), box-shadow var(--t-fast), filter var(--t-fast);
}
.map-id-popup__chip:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 6px hsl(240 10% 3.9% / 0.18);
  filter: brightness(1.08);
}

/* Multi-route endpoint label (floating over map) */
.route-end-label {
  display: inline-block;
  padding: 2px 6px;
  background: var(--label-col, hsl(var(--destructive)));
  color: #fff;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: var(--r-sm);
  white-space: nowrap;
  box-shadow: 0 1px 4px hsl(240 10% 3.9% / 0.35);
  transform: translate(-50%, -50%);
  pointer-events: none;
  user-select: none;
}

/* Leaflet zoom control — align with blueprint buttons */
.leaflet-bar {
  border: 1px solid var(--border-c) !important;
  border-radius: var(--r-md) !important;
  box-shadow: var(--shadow-sm) !important;
  overflow: hidden;
}
.leaflet-bar a, .leaflet-bar a:hover {
  background: hsl(var(--card)) !important;
  color: var(--text-1) !important;
  border-bottom-color: var(--border-c) !important;
  width: 28px !important; height: 28px !important;
  line-height: 28px !important;
  font-size: 16px !important;
}
.leaflet-bar a:hover { background: hsl(var(--muted)) !important; }

/* Dark mode: keep popups on dark card */
[data-theme="dark"] .map-popup__route-chip { background: hsl(var(--muted)); }

/* ============================================================================
   LONDON BUSES — post-v2 refinements
   ============================================================================ */

/* (1) Status toast honours the [hidden] attribute */
#status-toast[hidden] { display: none !important; }
.btn[hidden] { display: none !important; }

/* Hide Leaflet attribution — we credit the sources in the About modal instead */
.leaflet-control-attribution { display: none !important; }

/* Pointer cursor on any interactive map element (route lines, stop markers,
   garage pins) so the user knows they're clickable. */
.leaflet-interactive { cursor: pointer !important; }
.leaflet-pane .leaflet-marker-icon { cursor: pointer; }

/* (3) Typography: match filter-group label to right-section-title exactly */
.filter-group-label {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: var(--lh);
}

/* (2) Read-only meta rows in route detail — clean aligned baselines, no pill
       container (the blueprint's .field-val expects an editable input). */
.meta-list { display: flex; flex-direction: column; gap: var(--sp-2); margin: 0; }
.meta-row {
  display: grid;
  grid-template-columns: 88px 1fr;
  align-items: baseline;
  gap: var(--sp-3);
  padding: var(--sp-2) 0;
  border-bottom: 1px solid hsl(var(--border) / 0.6);
}
.meta-row:last-child { border-bottom: none; }
.meta-row dt {
  font-size: var(--fs-sm);
  color: var(--text-2);
  font-weight: 500;
}
.meta-row dd {
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--text-1);
  font-weight: 500;
  text-align: right;
  word-break: break-word;
}

/* (5) Nicer last/next update presentation in the footer */
.footer-data {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 2px 8px;
  border: 1px solid var(--border-c);
  border-radius: var(--r-pill);
  background: hsl(var(--muted) / 0.5);
}
.footer-data-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: hsl(var(--success));
  box-shadow: 0 0 0 3px hsl(var(--success) / 0.15);
}
.footer-data .footer-meta { color: var(--text-2); }
.footer-data .footer-meta::before { display: none; }
.footer-data .footer-meta #footer-date,
.footer-data .footer-meta #footer-next-date { color: var(--text-1); font-weight: 500; }
.footer-data-next { color: var(--text-3) !important; }

@media (max-width: 640px) {
  .footer-data { flex-wrap: wrap; }
  .footer-data-next { display: none; }
}

/* ============================================================================
   LONDON BUSES — map layer toggles + garage markers
   ============================================================================ */

/* Map layer toggles — live in the topbar */
#map-layer-toggles { display: inline-flex; gap: 4px; }
.map-toggle {
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border-c);
}
.map-toggle:hover { background: var(--muted-bg); color: var(--text-1); }
.map-toggle.active {
  background: var(--muted-bg);
  color: var(--text-1);
  border-color: var(--border-2);
}

/* Garage markers — colour-coded by operator, shows operator short code */
.garage-marker { background: none; border: none; }
.garage-marker-pin {
  position: relative;
  width: 32px; height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--garage-col, hsl(240 10% 12%));
  color: #fff;
  border: 2px solid #fff;
  border-radius: var(--r-md);
  box-shadow: 0 2px 6px hsl(240 10% 3.9% / 0.35);
  cursor: pointer;
  transition: transform var(--t-fast), box-shadow var(--t-fast);
}
.garage-marker-pin:hover { transform: scale(1.12); box-shadow: 0 3px 10px hsl(240 10% 3.9% / 0.45); }
.garage-marker-op {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
}
.garage-marker-count {
  position: absolute;
  top: -5px; right: -7px;
  min-width: 17px; height: 17px;
  padding: 0 4px;
  display: inline-flex; align-items: center; justify-content: center;
  background: hsl(var(--card));
  color: var(--text-1);
  border: 1px solid var(--border-c);
  border-radius: var(--r-pill);
  font-size: 9.5px; font-weight: 700;
  line-height: 1;
  box-shadow: 0 1px 2px hsl(240 10% 3.9% / 0.25);
}

[data-theme="dark"] .garage-marker-pin { border-color: hsl(240 6% 20%); }

@media (max-width: 640px) {
  .garage-marker-pin { width: 28px; height: 28px; }
  .garage-marker-op { font-size: 10px; }
}

/* ============================================================================
   ROADMAP MODAL — table of ideas and their delivery stage
   ============================================================================ */

.roadmap {
  inline-size: 100%;
  margin-block-start: var(--sp-5);
  border-collapse: collapse;
  font-size: var(--fs-sm);
}
.roadmap thead th {
  text-align: start;
  padding: var(--sp-2) var(--sp-3);
  border-bottom: 1px solid var(--border-c);
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.roadmap thead th:last-child { text-align: end; }
.roadmap tbody tr {
  border-bottom: 1px solid hsl(var(--border) / 0.6);
}
.roadmap tbody tr:last-child { border-bottom: none; }
.roadmap td {
  padding: var(--sp-3);
  vertical-align: top;
}
.roadmap__title {
  font-weight: 600;
  color: var(--text-1);
  white-space: nowrap;
}
.roadmap__desc {
  color: var(--text-2);
  line-height: 1.5;
}
.roadmap__stage-cell {
  text-align: end;
  white-space: nowrap;
}

/* Stage pill — a compact badge echoing our chip primitive but scoped so the
   palette doesn't drift if .chip evolves. */
.roadmap__stage {
  display: inline-flex; align-items: center;
  padding: 2px 8px;
  font-size: var(--fs-xs);
  font-weight: 600;
  border-radius: var(--r-pill);
  border: 1px solid var(--border-c);
  background: var(--muted-bg);
  color: var(--text-2);
  letter-spacing: 0.01em;
}
.roadmap__stage--idea     { background: var(--muted-bg);  color: var(--text-2);   border-color: var(--border-c); }
.roadmap__stage--planned  { background: var(--blue-bg);   color: var(--blue-tx);  border-color: var(--blue-bd); }
.roadmap__stage--building { background: var(--amber-bg);  color: var(--amber-tx); border-color: var(--amber-bd); }
.roadmap__stage--shipped  { background: var(--green-bg);  color: var(--green-tx); border-color: var(--green-bd); }

.roadmap__link {
  display: inline-block;
  margin-inline-start: 2px;
  color: hsl(var(--info));
  text-decoration: none;
  border-bottom: 1px dashed hsl(var(--info) / 0.4);
  font-size: var(--fs-xs);
}
.roadmap__link:hover { border-bottom-style: solid; }

/* Stack the table on narrow screens so nothing gets squeezed. */
@media (max-width: 560px) {
  .roadmap, .roadmap thead, .roadmap tbody, .roadmap tr, .roadmap td, .roadmap th { display: block; }
  .roadmap thead { display: none; }
  .roadmap tbody tr {
    padding-block: var(--sp-3);
  }
  .roadmap td { padding: 2px 0; }
  .roadmap__title { font-size: var(--fs-md); }
  .roadmap__stage-cell { text-align: start; margin-block-start: 4px; }
}