src/theme.css

/* Minimal design tokens + component kit. Reachy-orange accent, light + dark
   driven by the `data-theme` attribute set in index.html. Everything reads CSS
   variables so it flips with the host theme for free. */

:root,
[data-theme="dark"] {
  --bg: #0e0f11;
  --surface: #17181b;
  --surface-2: #1f2125;
  --border: #2a2c31;
  --fg: #f2f3f5;
  --muted: #9aa0a8;
  --primary: #ff9f0a; /* Reachy orange (dark surfaces) */
  --primary-tint: rgba(255, 159, 10, 0.16);
  /* The dial and the knob panels. Kept below --surface so they read as recessed
     into the chassis rather than laid on top of it. */
  --inset-surface: #101114;
  --inset-fg: #f2f3f5;
  --inset-muted: #9aa0a8;
  --success: #4caf50;
  --radius: 12px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

[data-theme="light"] {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #f0f1f4;
  --border: #e2e4e9;
  --fg: #1a1c1f;
  --muted: #6b7280;
  --primary: #ff9500; /* Reachy orange */
  --primary-tint: rgba(255, 149, 0, 0.1);
  --inset-surface: #ffffff;
  --inset-fg: #1a1c1f;
  --inset-muted: #6b7280;
  --success: #2e9e46;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

.btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--fg);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.1;
  padding: 0.45rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  transition:
    background 0.12s ease,
    border-color 0.12s ease,
    color 0.12s ease,
    opacity 0.12s ease;
}
.btn:hover:not(:disabled) {
  background: var(--primary-tint);
  border-color: var(--primary);
  color: var(--primary);
}
.btn:active:not(:disabled) {
  opacity: 0.88;
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
/* Primary = outlined (kit default for interactions): transparent fill, primary
   border + text, tinted on hover. Selected/active states use the tint fill. */
.btn.primary {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}
.btn.primary:hover:not(:disabled) {
  background: var(--primary-tint);
  border-color: var(--primary);
}
.btn.toggled {
  background: var(--primary-tint);
  border-color: var(--primary);
  color: var(--primary);
}
/* Size variant: hero-level actions (e.g. the station search bar). The compact
   counterpart (.btn-compact) lives with the list styles in app.css. */
.btn-big {
  font-size: 0.92rem;
  padding: 0.62rem 1.1rem;
  border-radius: 10px;
}

.segmented {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.segmented button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.78rem;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
}
.segmented button[aria-pressed="true"] {
  background: var(--primary-tint);
  color: var(--primary);
}
.segmented button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Tooltip: single reused bubble, positioned by src/tooltip.ts. High-contrast
   (inverted) surface via --fg so it flips with the theme. */
.tooltip {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 2000;
  max-width: 220px;
  padding: 0.4rem 0.55rem;
  border-radius: 8px;
  background: var(--fg);
  color: var(--bg);
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1.25;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.24);
  pointer-events: none;
  opacity: 0;
  transform: translateY(2px);
  transition:
    opacity 0.12s ease,
    transform 0.12s ease;
}
.tooltip[data-show="true"] {
  opacity: 1;
  transform: translateY(0);
}
.tooltip::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  background: inherit;
  transform: rotate(45deg);
}
.tooltip[data-placement="top"]::after {
  bottom: -3px;
  left: var(--arrow-left, 50%);
  margin-left: -4px;
}
.tooltip[data-placement="bottom"]::after {
  top: -3px;
  left: var(--arrow-left, 50%);
  margin-left: -4px;
}
.tooltip[data-placement="left"]::after {
  right: -3px;
  top: var(--arrow-top, 50%);
  margin-top: -4px;
}
.tooltip[data-placement="right"]::after {
  left: -3px;
  top: var(--arrow-top, 50%);
  margin-top: -4px;
}
@media (prefers-reduced-motion: reduce) {
  .tooltip {
    transition: opacity 0.12s ease;
    transform: none;
  }
  .tooltip[data-show="true"] {
    transform: none;
  }
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: 2px solid var(--surface);
}
input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: 2px solid var(--surface);
}