/* =====================================================================
 * gt7-kit.css — canonical design tokens + component classes
 *
 * Single source of truth shared between gt7-ui-kit.html and the live app
 * pages. Mirror any addition/change in BOTH places — the kit file inlines
 * an identical copy of these blocks for its standalone preview, and the
 * app pages link this file directly so they always pick up the latest
 * token values without a duplication step.
 *
 * Sections:
 *   1. Tokens (:root)
 *   2. Buttons (.btn, .btn-*, .icon-btn-*)
 *   3. Inputs (.input, .select, .textarea, .check, .radio, .switch, .slider)
 *   4. Pills + badges + tags + delta pills + severity badges
 *   5. Toggle group (.toggle-group .tog)
 *   6. Cards + glass cards + stat cards
 *   7. Tabs (.tabs .tab)
 *   8. Table (.table)
 *   9. Modal (.modal-mock)
 *  10. Toasts (.toast)
 *  11. Empty state (.empty)
 *  12. Progress + spinner + skeleton (loaders)
 *  13. Live-stat-row + lap-chip helpers
 *  14. Pagination buttons (.page-btn for Sessions list)
 * ===================================================================== */

/* ─── 1. Tokens ─────────────────────────────────────────────────── */
/* Source of truth: the admin Design panel (admin.html #panel-design).
 * Any colour added there must be mirrored here, in gt7-ui-kit.html's
 * inline :root block, and in gt7-redesign-mockup.html's :root block.
 * Surfaces (background / card / card-2) follow the digit-edge brand
 * "Elevation" scale; channel accents are the official telemetry
 * palette; tire bands are the six anchor colours that the live
 * gt7-tire-bands.js gradient interpolates between.
 */
:root {
  /* Surfaces — brand Elevation scale */
  --background: #09162d;   /* Navy        — page bg */
  --elev-1:    #0d1c38;    /* Elevation 1 — popovers, table strips */
  --elev-2:    #112344;    /* Elevation 2 — card bg */
  --card:      #0d1c38;    /* alias of --elev-1 (primary card surface) */
  --card-2:    #112344;    /* alias of --elev-2 (raised card surface) */
  --popover:   #112344;
  --muted:     #0d1c38;
  --foreground:  #e2e8f0;
  --muted-fg:    #64748b;
  --slate-300:   #cbd5e1;
  --slate-400:   #94a3b8;

  /* Brand colours (digit-edge) */
  --brand-blue:  #409ed7;
  --brand-red:   #cd202d;
  --brand-amber: #ffb432;
  --brand-green: #2fc980;
  --brand-purple:#6052c8;

  /* Primary + state aliases */
  --primary:      var(--brand-blue);
  --primary-fg:   #ffffff;
  --destructive:  var(--brand-red);
  --border:        rgba(64,158,215,0.15);
  --border-strong: rgba(64,158,215,0.30);
  --ring:          rgba(64,158,215,0.4);

  /* Telemetry channel colours — canonical from Design panel */
  --c-throttle: #2fc980;   /* same as brand-green */
  --c-brake:    #cd202d;   /* same as brand-red */
  --c-steer:    #409ed7;   /* same as brand-blue (was a378bfa, now standardised) */
  --c-speed:    #ffb432;   /* same as brand-amber */
  --c-gear:     #6052c8;   /* same as brand-purple */
  --c-yellow:   #e1ca17;   /* secondary speed/rpm yellow accent */
  --c-delta:    #a855f7;   /* purple delta line (chart-only) */
  /* Legacy aliases — keep so existing class rules don't break */
  --c-green: var(--c-throttle);
  --c-red:   var(--c-brake);
  --c-blue:  var(--c-steer);

  /* Severity badges */
  --sev-high: #ef4444;
  --sev-mid:  var(--brand-amber);
  --sev-low:  #94a3b8;

  /* Tire-temp bands — 6 anchors; gt7-tire-bands.js interpolates between */
  --tire-cold:        #1d85f6;  /* < 60 °C */
  --tire-sub-optimal: #06b6d4;  /* 60–75 */
  --tire-optimal:     #21c45d;  /* 75–85 */
  --tire-warm:        #e1ca17;  /* 85–95 */
  --tire-hot:         #f97316;  /* 95–110 */
  --tire-overheating: #ef4343;  /* 110+ */

  /* Radii — sharp & geometric */
  --r-sm: 2px;
  --r-md: 6px;
  --r-lg: 10px;
  --r-xl: 14px;

  /* Spacing scale (4 px grid) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
}

/* Tire-band utility classes — drop one of these on any element and it
 * inherits the matching anchor colour via `currentColor`. The tire card,
 * gauge ring, and tag chip in the mockup all reference these. */
.is-cold        { --tire-band: var(--tire-cold);        color: var(--tire-cold); }
.is-sub-optimal { --tire-band: var(--tire-sub-optimal); color: var(--tire-sub-optimal); }
.is-optimal     { --tire-band: var(--tire-optimal);     color: var(--tire-optimal); }
.is-warm        { --tire-band: var(--tire-warm);        color: var(--tire-warm); }
.is-hot         { --tire-band: var(--tire-hot);         color: var(--tire-hot); }
.is-overheating { --tire-band: var(--tire-overheating); color: var(--tire-overheating); }

/* Numeric / "mono" text — Inter + tabular-nums.
 * The app deliberately uses Inter for both prose and numbers (its Tailwind
 * config maps font-mono to Inter), and `font-variant-numeric: tabular-nums`
 * gives every digit the same advance width so lap-time columns align
 * cleanly without switching to a true monospace face. JetBrains Mono /
 * Consolas were tried earlier in the kit + mockup but mismatched the live
 * app's typography. Anchor the canonical look here so the kit, mockup,
 * and the live pages all render identical numbers.
 *
 * Use `.mono` on any element whose digits should align column-by-column
 * (table cells, lap-time chips, ID strings). It inherits font-family from
 * the page so prose stays Inter; only the digit metrics change.
 */
.mono,
code,
kbd,
samp {
  font-family: 'Inter', system-ui, sans-serif;
  font-variant-numeric: tabular-nums;
  font-feature-settings: 'tnum' 1;
}

/* ─── 2. Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--r-md);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid transparent;
  background: transparent;
  color: var(--foreground);
  white-space: nowrap;
}
.btn .material-icons { font-size: 14px; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: var(--primary-fg); }
.btn-primary:hover:not(:disabled) { background: #4eb0ec; }
.btn-primary:active:not(:disabled) { background: #2d8cc3; }
.btn-secondary { background: var(--card-2); border-color: var(--border); color: var(--foreground); }
.btn-secondary:hover:not(:disabled) { background: #143052; border-color: var(--border-strong); }
.btn-outline { border-color: var(--border-strong); color: var(--foreground); }
.btn-outline:hover:not(:disabled) { background: rgba(64,158,215,0.08); border-color: var(--primary); }
.btn-ghost { color: var(--slate-400); }
.btn-ghost:hover:not(:disabled) { background: rgba(255,255,255,0.05); color: var(--foreground); }
.btn-danger { background: var(--destructive); color: white; }
.btn-danger:hover:not(:disabled) { background: #ff5b5b; }
.btn-success { background: var(--c-green); color: white; }
.btn-success:hover:not(:disabled) { background: #2dd66e; }
.btn-sm { padding: 4px 10px; font-size: 11px; }
.btn-sm .material-icons { font-size: 12px; }
.btn-lg { padding: 12px 20px; font-size: 14px; }
.btn-lg .material-icons { font-size: 16px; }

/* Icon buttons */
.icon-btn-sq {
  width: 28px; height: 28px;
  border-radius: var(--r-md);
  background: transparent;
  border: 1px solid var(--border);
  color: var(--slate-400);
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: all 0.15s;
}
.icon-btn-sq:hover { background: rgba(255,255,255,0.05); color: var(--foreground); border-color: var(--border-strong); }
.icon-btn-sq:disabled { opacity: 0.4; cursor: not-allowed; }
.icon-btn-sq .material-icons { font-size: 14px; }
.icon-btn-sq.is-active { background: rgba(64,158,215,0.18); border-color: var(--primary); color: var(--primary); }

.icon-btn-bare {
  width: 24px; height: 24px;
  border-radius: 4px;
  background: transparent;
  border: none;
  color: var(--muted-fg);
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: all 0.15s;
}
.icon-btn-bare:hover { background: rgba(255,255,255,0.05); color: var(--foreground); }
.icon-btn-bare .material-icons { font-size: 14px; }

/* ─── 3. Inputs ───────────────────────────────────────────────────
 * The selector lists below intentionally pair the TAG with the CLASS
 * (e.g. `input.input`, `select.select`) instead of using just `.input`
 * etc. The pages load Tailwind's `forms` plugin from the CDN, which
 * ships a preflight stylesheet that targets every `<input>` with
 * `[type='text']:not([type='button']):not(...)` etc. and paints them
 * white. That preflight beats a bare `.input` rule on specificity, so
 * the inputs in Settings (and anywhere else using `.input` on a text
 * field) rendered as white boxes against the dark page. Adding the
 * tag part bumps the specificity above the preflight without needing
 * `!important`, so the dark card-2 background sticks. */
input.input, select.select, textarea.textarea,
.input, .select, .textarea {
  width: 100%;
  padding: 8px 12px;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  color: var(--foreground);
  font-family: inherit;
  font-size: 12px;
  outline: none;
  transition: all 0.15s;
}
input.input:focus, select.select:focus, textarea.textarea:focus,
.input:focus, .select:focus, .textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--ring);
}
input.input::placeholder, textarea.textarea::placeholder,
.input::placeholder, .textarea::placeholder { color: var(--muted-fg); }
.textarea { min-height: 80px; resize: vertical; font-family: inherit; }
/* `<input type="date">` honours OS-level form-control theming via the
 * `color-scheme` property. Without this Chrome paints the day/month/year
 * spinners + the dropdown calendar with light-mode native styling, which
 * shows as a white box-within-the-box on top of our dark .input
 * background. `color-scheme: dark` flips those native pieces to a
 * dark palette so the whole control reads as one cohesive dark field. */
input[type="date"].input,
input[type="time"].input,
input[type="datetime-local"].input,
input[type="month"].input,
input[type="week"].input {
  color-scheme: dark;
}
/* The calendar picker icon ships as a black SVG which disappears on
 * a dark background. Invert it so it reads as a light grey chevron
 * that matches the placeholder colour. */
input[type="date"].input::-webkit-calendar-picker-indicator,
input[type="time"].input::-webkit-calendar-picker-indicator,
input[type="datetime-local"].input::-webkit-calendar-picker-indicator {
  filter: invert(0.7) brightness(0.9);
  cursor: pointer;
  opacity: 0.7;
}
input[type="date"].input::-webkit-calendar-picker-indicator:hover,
input[type="time"].input::-webkit-calendar-picker-indicator:hover,
input[type="datetime-local"].input::-webkit-calendar-picker-indicator:hover {
  opacity: 1;
}
.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
}
.input-with-icon { position: relative; }
.input-with-icon .input { padding-left: 32px; }
.input-with-icon .input-icon {
  position: absolute;
  left: 10px; top: 50%;
  transform: translateY(-50%);
  color: var(--muted-fg);
  pointer-events: none;
}
.input-with-icon .input-icon .material-icons { font-size: 14px; }
.label { display: block; font-size: 10px; font-weight: 600; color: var(--muted-fg); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 6px; }
.help { font-size: 11px; color: var(--muted-fg); margin-top: 4px; }

.check { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 12px; }
.check input { appearance: none; width: 16px; height: 16px; border: 1px solid var(--border-strong); border-radius: 4px; background: var(--card-2); position: relative; cursor: pointer; flex-shrink: 0; }
.check input:checked { background: var(--primary); border-color: var(--primary); }
.check input:checked::after { content: ''; position: absolute; top: 2px; left: 5px; width: 4px; height: 8px; border: solid white; border-width: 0 2px 2px 0; transform: rotate(45deg); }

.radio { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 12px; }
.radio input { appearance: none; width: 16px; height: 16px; border: 1px solid var(--border-strong); border-radius: 50%; background: var(--card-2); position: relative; cursor: pointer; flex-shrink: 0; }
.radio input:checked { border-color: var(--primary); }
.radio input:checked::after { content: ''; position: absolute; top: 3px; left: 3px; width: 8px; height: 8px; border-radius: 50%; background: var(--primary); }

.switch {
  position: relative;
  width: 36px; height: 20px;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}
.switch::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 14px; height: 14px;
  background: var(--slate-400);
  border-radius: 50%;
  transition: all 0.2s;
}
.switch.on { background: var(--primary); border-color: var(--primary); }
.switch.on::after { left: 18px; background: white; }

.slider {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 4px;
  background: var(--muted);
  border-radius: 2px;
  outline: none;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--background);
}

/* ─── 4. Pills / badges / tags ──────────────────────────────────── */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted-fg);
  font-size: 11px; font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.pill .pill-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.pill:hover { color: var(--foreground); }
.pill.pill-delta.active    { color: var(--c-delta);  border-color: rgba(168,85,247,0.4); background: rgba(168,85,247,0.1); }
.pill.pill-speed.active    { color: var(--c-speed);    border-color: rgba(255,180,50,0.4); background: rgba(255,180,50,0.1); }
.pill.pill-throttle.active { color: var(--c-throttle); border-color: rgba(47,201,128,0.4); background: rgba(47,201,128,0.1); }
.pill.pill-brake.active    { color: var(--c-brake);    border-color: rgba(205,32,45,0.4);  background: rgba(205,32,45,0.1); }
.pill.pill-steer.active    { color: var(--c-steer);    border-color: rgba(64,158,215,0.4); background: rgba(64,158,215,0.1); }
.pill.pill-gear.active     { color: var(--c-gear);     border-color: rgba(96,82,200,0.4);  background: rgba(96,82,200,0.1); }

.delta-pill {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px;
  border-radius: var(--r-md);
  border: 1px solid;
  font-size: 11px; font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.delta-pill .label { color: var(--muted-fg); font-size: 10px; }
.delta-pill.loss    { border-color: rgba(239,67,67,0.3); background: rgba(239,67,67,0.1); color: var(--destructive); }
.delta-pill.gain    { border-color: rgba(33,196,93,0.3); background: rgba(33,196,93,0.1); color: var(--c-green); }
.delta-pill.neutral { border-color: var(--border);       background: transparent;        color: var(--muted-fg); }

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 10px; font-weight: 600;
  letter-spacing: 0.04em;
  border: 1px solid;
}
.badge .dot-pulse { width: 6px; height: 6px; border-radius: 50%; animation: kit-pulse 1.6s ease-in-out infinite; }
@keyframes kit-pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
.badge-connected    { color: var(--c-green);    background: rgba(33,196,93,0.1); border-color: rgba(33,196,93,0.3); }
.badge-recording    { color: var(--destructive);background: rgba(239,67,67,0.1); border-color: rgba(239,67,67,0.3); }
.badge-disconnected { color: var(--muted-fg);   background: var(--muted);        border-color: var(--border); }
.badge-warning      { color: var(--sev-mid);    background: rgba(245,158,11,0.1); border-color: rgba(245,158,11,0.3); }
/* Purple variant — paired with `.badge` for the screenshot CTA and
 * any other small action that should read as a pill rather than a
 * square icon button. Matches the brand purple from --c-gear /
 * --brand-purple so it tonally fits next to the green "Connected"
 * badge. */
.badge-purple       { color: var(--brand-purple); background: rgba(96,82,200,0.1); border-color: rgba(96,82,200,0.3); }
/* Clickable badges (buttons / anchors that adopt `.badge` styling)
 * pick up a subtle hover lift — backgrounds intensify by a small
 * factor without changing colour. Lets the screenshot pill feel
 * interactive without losing its "this is a status chip" look. */
button.badge, a.badge { cursor: pointer; transition: background 0.15s ease, border-color 0.15s ease; }
button.badge-purple:hover, a.badge-purple:hover { background: rgba(96,82,200,0.18); border-color: rgba(96,82,200,0.5); }
button.badge-connected:hover, a.badge-connected:hover { background: rgba(33,196,93,0.18); border-color: rgba(33,196,93,0.5); }

.sev-badge {
  display: inline-flex; align-items: center;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 9px; font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.sev-badge.high   { color: var(--sev-high); background: rgba(239,68,68,0.18); }
.sev-badge.medium { color: var(--sev-mid);  background: rgba(245,158,11,0.18); }
.sev-badge.low    { color: var(--sev-low);  background: rgba(148,163,184,0.18); }

.tag {
  display: inline-flex;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 9px; font-weight: 700;
  letter-spacing: 0.06em;
}
.tag-best    { background: rgba(64,158,215,0.2); color: var(--primary); }
.tag-invalid { background: var(--muted);         color: var(--muted-fg); }

/* ─── 5. Toggle group ───────────────────────────────────────────── */
.toggle-group {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
}
.toggle-group .tog {
  padding: 4px 12px;
  font-size: 10px; font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted-fg);
  background: transparent;
  border: none;
  border-right: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.15s;
  text-transform: capitalize;
  font-family: inherit;
}
.toggle-group .tog:last-child { border-right: none; }
.toggle-group .tog:hover { color: var(--foreground); }
.toggle-group .tog.active { background: rgba(64,158,215,0.15); color: var(--primary); }

/* ─── 6. Cards ──────────────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.card-glass {
  background: rgba(64,158,215,0.04);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(64,158,215,0.18);
  border-radius: var(--r-lg);
  padding: 16px;
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
}
.card-header-title {
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate-400);
}
.card-body { padding: 16px; }

.stat-card { padding: 16px; }
.stat-label { font-size: 10px; color: var(--muted-fg); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 6px; }
.stat-value { font-size: 28px; font-weight: 700; line-height: 1; font-variant-numeric: tabular-nums; }
.stat-unit  { font-size: 12px; color: var(--muted-fg); margin-left: 4px; }
.stat-delta { font-size: 11px; margin-top: 4px; font-weight: 600; }

/* Apex card — the elevated, lightly-glassy panel used on the Home modules +
 * hero and the Overlays catalogue. A clearly DEFINED surface (visibly lighter
 * than the page bg) with a hairline border, a top-edge highlight (::before),
 * and a real drop shadow so it reads as a card, not a faint outline. Anchors
 * with this class (clickable tiles) brighten + deepen on hover. */
.apex-glass {
  background: linear-gradient(135deg, rgba(20, 41, 74, 0.9) 0%, rgba(13, 28, 54, 0.94) 100%);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 10px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.30);
}
.apex-glass::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
  pointer-events: none;
}
a.apex-glass { transition: border-color 0.15s ease, box-shadow 0.15s ease; }
a.apex-glass:hover { border-color: rgba(93, 189, 240, 0.40); box-shadow: 0 8px 22px rgba(0, 0, 0, 0.42); }

/* ─── 7. Tabs ───────────────────────────────────────────────────── */
.tabs {
  display: flex; gap: 0;
  border-bottom: 1px solid var(--border);
}
.tab {
  padding: 10px 16px;
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--muted-fg);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}
.tab:hover { color: var(--foreground); border-bottom-color: var(--border); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* ─── 8. Tables ─────────────────────────────────────────────────── */
.table { width: 100%; border-collapse: collapse; }
.table thead tr { background: rgba(13,30,56,0.4); border-bottom: 1px solid var(--border); }
.table th {
  text-align: left;
  padding: 10px 14px;
  font-size: 10px; font-weight: 600;
  color: var(--muted-fg);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.table td {
  padding: 10px 14px;
  font-size: 12px;
  border-bottom: 1px solid rgba(64,158,215,0.06);
}
.table tbody tr:hover { background: rgba(255,255,255,0.02); cursor: pointer; }
.table tbody tr.selected { background: rgba(64,158,215,0.06); }
.row-indicator { display: inline-block; width: 3px; height: 16px; background: var(--primary); border-radius: 0 2px 2px 0; vertical-align: middle; }

.page-btn {
  min-width: 28px; height: 28px;
  padding: 0 6px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--foreground);
  font-family: inherit;
  font-size: 11px; font-weight: 600;
  cursor: pointer;
  transition: background 120ms, border-color 120ms;
}
.page-btn:hover { background: rgba(255,255,255,0.04); border-color: rgba(64,158,215,0.35); }
.page-btn-active { background: var(--primary); border-color: var(--primary); color: white; }
.page-btn-active:hover { background: var(--primary); }

/* ─── 9. Modal ──────────────────────────────────────────────────── */
.modal-mock {
  max-width: 480px;
  background: var(--card);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-xl);
  box-shadow: 0 16px 48px rgba(0,0,0,0.5);
  overflow: hidden;
}
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.modal-title { font-size: 14px; font-weight: 600; }
.modal-body { padding: 20px; color: var(--muted-fg); font-size: 13px; line-height: 1.6; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 20px; border-top: 1px solid var(--border); }

/* ─── 10. Toasts ────────────────────────────────────────────────── */
.toast {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-left-width: 3px;
  border-radius: var(--r-md);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
  min-width: 320px;
}
.toast .material-icons { font-size: 18px; flex-shrink: 0; margin-top: 1px; }
.toast-title { font-size: 12px; font-weight: 600; margin: 0 0 2px; }
.toast-msg   { font-size: 11px; color: var(--muted-fg); margin: 0; }
.toast.success { border-left-color: var(--c-green); }
.toast.success .material-icons { color: var(--c-green); }
.toast.error   { border-left-color: var(--destructive); }
.toast.error   .material-icons { color: var(--destructive); }
.toast.warning { border-left-color: var(--sev-mid); }
.toast.warning .material-icons { color: var(--sev-mid); }
.toast.info    { border-left-color: var(--primary); }
.toast.info    .material-icons { color: var(--primary); }

/* ─── 11. Empty state ───────────────────────────────────────────── */
.empty {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: 40px 24px;
  color: var(--muted-fg);
  border: 1px dashed rgba(100,116,139,0.4);
  border-radius: var(--r-lg);
}
.empty .material-icons { font-size: 36px; margin-bottom: 8px; color: var(--slate-400); }
.empty p { font-size: 12px; margin: 0; max-width: 280px; line-height: 1.6; }

/* ─── 12. Loaders ───────────────────────────────────────────────── */
.progress { width: 100%; height: 4px; background: var(--muted); border-radius: 2px; overflow: hidden; }
.progress-bar { height: 100%; background: var(--primary); border-radius: 2px; }

.spinner {
  width: 18px; height: 18px;
  border: 2px solid var(--muted);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: kit-spin 0.8s linear infinite;
  display: inline-block;
}
@keyframes kit-spin { to { transform: rotate(360deg); } }

.skeleton {
  background: linear-gradient(90deg, var(--muted) 0%, rgba(64,158,215,0.08) 50%, var(--muted) 100%);
  background-size: 200% 100%;
  animation: kit-shimmer 1.6s linear infinite;
  border-radius: 4px;
}
@keyframes kit-shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ─── 13. Helpers ───────────────────────────────────────────────── */
.live-stat-row {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 10px;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-size: 11px;
}
.live-stat-row .label { color: var(--muted-fg); }
.live-stat-row .value { font-weight: 600; }

.lap-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--card-2);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}
.lap-chip .label { color: var(--muted-fg); }

/* =====================================================================
 * 15. Container colour unification layer
 *
 * The app's pages were written with scattered Tailwind utility-class
 * backgrounds (bg-slate-800/50, bg-slate-900/80, bg-black/30, etc.)
 * that produce subtly different shades on different pages. This
 * section overrides those common Tailwind utilities with the kit's
 * canonical surface tokens (--card / --card-2) and border token
 * (--border) so every panel across the app reads as the same Navy
 * Elevation scale defined in the admin Design panel.
 *
 * Naming note: Tailwind generates classes like `.bg-slate-800\/50`
 * — the forward slash is escaped in CSS. The Play CDN injects
 * these styles at runtime, sometimes AFTER this stylesheet loads,
 * so the overrides below use `!important` to win the cascade. The
 * Tailwind utilities aren't marked important, so a regular
 * `!important` is enough — no need to escalate further.
 *
 * What we DON'T override:
 *   • Channel + chart colours (text-chart-green, text-chart-red,
 *     etc.) — those carry telemetry semantics.
 *   • Brand-tinted accents kept deliberately for affordance:
 *     bg-primary/5  (very-faint hint cards), bg-primary/10
 *     (active sidebar item), bg-primary/15-20 (active tab/toggle).
 *   • Status badges and severity badges — kit classes (.badge-*,
 *     .sev-badge-*) own those colours.
 * ===================================================================== */

/* Neutral card surfaces — slate-800-family (most common) → --card-2
 * (the raised Elevation 2 surface). Catches `bg-slate-800/40`,
 * `bg-slate-800/50`, `bg-slate-800/60` which all collapse to the
 * same intent: "raised content card on the page bg." */
.bg-slate-800\/40,
.bg-slate-800\/50,
.bg-slate-800\/60,
.bg-slate-800\/80,
.bg-slate-800\/95 { background-color: var(--card-2) !important; }

/* Deeper slate-900 family → --card (Elevation 1). These are the
 * tones used for inputs, info-bar wells, lap-list rows, and any
 * other "container sitting against the bg" surface. */
.bg-slate-900\/30,
.bg-slate-900\/40,
.bg-slate-900\/50,
.bg-slate-900\/60,
.bg-slate-900\/80,
.bg-slate-900\/95 { background-color: var(--card) !important; }

/* Black-tinted overlays (bg-black/30/40/50) were used for inset
 * canvas wraps and panel wells. They lived BETWEEN the page bg and
 * --card visually, so we ramp them to --card — slightly above the
 * page surface, matching the Elevation scale. */
.bg-black\/20,
.bg-black\/30,
.bg-black\/40,
.bg-black\/50 { background-color: var(--card) !important; }

/* Background-dark already resolves to #09162d in the Tailwind config,
 * which equals --background. Just here for completeness in case the
 * config drifts. */
.bg-background-dark,
.dark\:bg-background-dark { background-color: var(--background) !important; }

/* Border tokens — every "primary tint, low alpha" border collapses
 * to --border (rgba(64,158,215,0.15)) so the divider treatment is
 * uniform. */
.border-primary\/5,
.border-primary\/10,
.border-primary\/15,
.border-primary\/20 { border-color: var(--border) !important; }

/* Slate borders → kit border too. Catches the outline-button border
 * (border-slate-600/60), filter dividers (border-slate-500/40),
 * and friends. Hover states already have their own brand-tinted
 * border in the kit classes, so the static state can safely
 * unify here. */
.border-slate-500\/40,
.border-slate-600\/40,
.border-slate-600\/60,
.border-slate-700\/50 { border-color: var(--border) !important; }

/* Slate-700 icon-button backgrounds (the "w-6 h-6 rounded bg-slate-
 * 700/60" icon-square style used as inline action buttons in the
 * Coach and Driving toolbars) → --card-2 so they sit on the same
 * surface scale as the .icon-btn-sq kit class. */
.bg-slate-700\/40,
.bg-slate-700\/60,
.bg-slate-700\/80 { background-color: var(--card-2) !important; }