/* RangerHQ Tuner popup — ~360x520, dark earthy palette echoing the
   RangerHQ family brand (forest green + warm cream). Vanilla CSS,
   no preprocessor, no build step. */

:root {
  --bg:         #0f1411;
  --bg-soft:    #1a221c;
  --bg-row:    #1f2823;
  --bg-row-hi: #2a3530;
  --fg:         #e8e4d4;
  --fg-muted:   #97a094;
  --accent:     #6dbf7a;   /* RangerHQ green */
  --accent-dim: #2a7d3e;
  --cream:      #f4e9b7;
  --danger:     #c9685b;
  --radius:     6px;

  /* First-run hint pulse colour (RGB tuple — alpha applied in keyframes). */
  --pulse-rgb:  109, 191, 122;
}

/* ──────────────────────────────────────────────────────────────────────
   Light mode (v0.5.0) — auto-follows OS theme via prefers-color-scheme.
   Flips backgrounds + foregrounds to a cream-leaning palette while
   preserving the brand green as the accent. Every existing rule that
   uses the var(--*) tokens keeps working unchanged.
   ────────────────────────────────────────────────────────────────────── */
/* Shared light palette block — used as a mixin by the @media (OS-follow)
   rule below AND by the html[data-theme="light"] manual override. */
@media (prefers-color-scheme: light) {
  :root {
    --bg:         #f6f4ed;    /* cream-leaning off-white */
    --bg-soft:    #ece5d2;    /* slightly darker for header bars */
    --bg-row:     #ddd6c0;    /* hover background */
    --bg-row-hi:  #c8c0a8;    /* active row background */
    --fg:         #2a2f28;    /* dark forest-green-leaning text */
    --fg-muted:   #6a7064;    /* muted secondary text */
    --accent:     #2a7d3e;    /* darker brand green for primary contrast */
    --accent-dim: #6dbf7a;    /* lighter brand green for fills */
    --cream:      #b8861a;    /* darker amber — readable on light bg */
    --danger:     #b53a2b;    /* darker red — readable on light bg */
  }
  .tuner-state[data-state="playing"]   { color: #fff; }
  .tuner-state[data-state="buffering"] { color: #fff; }
  .tuner-state[data-state="error"]     { color: #fff; }
  .btn-primary[aria-pressed="true"]    { color: #fff; }
}

/* Manual override — force LIGHT palette regardless of OS. The attribute
   selector beats both :root and the @media rule's :root on specificity. */
html[data-theme="light"] {
  --bg: #f6f4ed; --bg-soft: #ece5d2; --bg-row: #ddd6c0; --bg-row-hi: #c8c0a8;
  --fg: #2a2f28; --fg-muted: #6a7064; --accent: #2a7d3e; --accent-dim: #6dbf7a;
  --cream: #b8861a; --danger: #b53a2b;
}
html[data-theme="light"] .tuner-state[data-state="playing"]   { color: #fff; }
html[data-theme="light"] .tuner-state[data-state="buffering"] { color: #fff; }
html[data-theme="light"] .tuner-state[data-state="error"]     { color: #fff; }
html[data-theme="light"] .btn-primary[aria-pressed="true"]    { color: #fff; }

/* Manual override — force DARK palette regardless of OS. Overrides the
   @media block when OS is light but user explicitly wants dark. */
html[data-theme="dark"] {
  --bg: #0f1411; --bg-soft: #1a221c; --bg-row: #1f2823; --bg-row-hi: #2a3530;
  --fg: #e8e4d4; --fg-muted: #97a094; --accent: #6dbf7a; --accent-dim: #2a7d3e;
  --cream: #f4e9b7; --danger: #c9685b;
}
html[data-theme="dark"] .tuner-state[data-state="playing"]   { color: var(--bg); }
html[data-theme="dark"] .tuner-state[data-state="buffering"] { color: var(--bg); }
html[data-theme="dark"] .tuner-state[data-state="error"]     { color: var(--cream); }
html[data-theme="dark"] .btn-primary[aria-pressed="true"]    { color: var(--bg); }

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  width: 360px;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 13px;
  line-height: 1.4;
}

/* Header */
.tuner-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: var(--bg-soft);
  border-bottom: 1px solid #000;
}

.tuner-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tuner-brand h1 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.tuner-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.tuner-state {
  font-size: 11px;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--bg-row);
}

.tuner-state[data-state="playing"] {
  color: var(--bg);
  background: var(--accent);
}

.tuner-state[data-state="buffering"] {
  color: var(--bg);
  background: var(--cream);
}

.tuner-state[data-state="error"] {
  color: var(--cream);
  background: var(--danger);
}

/* Now playing */
.now-playing {
  padding: 10px 12px;
  background: var(--bg-soft);
  border-bottom: 1px solid #000;
}

.np-station {
  font-weight: 600;
  font-size: 13px;
}

.np-track {
  font-size: 12px;
  color: var(--fg-muted);
  margin-top: 2px;
  min-height: 1.4em;
}

/* Controls */
.controls {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid #000;
}

.btn {
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius);
  background: var(--bg-row);
  color: var(--fg);
  cursor: pointer;
}

.btn:hover:not(:disabled) {
  background: var(--bg-row-hi);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent-dim);
}

.btn-primary[aria-pressed="true"] {
  background: var(--accent);
  color: var(--bg);
}

.vol-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
}

.vol-label {
  font-size: 11px;
  color: var(--fg-muted);
}

#volume {
  flex: 1;
  accent-color: var(--accent);
}

/* Search */
.search-wrap {
  display: block;
  padding: 8px 12px 4px;
}

#search {
  width: 100%;
  padding: 6px 8px;
  font-size: 12px;
  background: var(--bg-row);
  color: var(--fg);
  border: 1px solid var(--bg-row-hi);
  border-radius: var(--radius);
}

#search:focus {
  outline: none;
  border-color: var(--accent);
}

/* Station list */
.station-list {
  margin: 0;
  padding: 0;
  list-style: none;
  max-height: 280px;
  overflow-y: auto;
}

.station-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--bg-soft);
  cursor: pointer;
}

.station-row:hover {
  background: var(--bg-row);
}

.station-row.is-active {
  background: var(--bg-row-hi);
  border-left: 3px solid var(--accent);
  padding-left: 9px;
}

.station-art {
  width: 28px;
  height: 28px;
  border-radius: 4px;
  background: var(--bg-soft);
  flex-shrink: 0;
  object-fit: cover;
}

.station-meta {
  flex: 1;
  min-width: 0;
}

.station-name {
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.station-genre {
  font-size: 10px;
  color: var(--fg-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.station-empty {
  padding: 16px;
  text-align: center;
  color: var(--fg-muted);
  font-size: 12px;
}

/* Nav — quick-link row above the footer */
.tuner-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--bg-soft);
  border-top: 1px solid #000;
  gap: 1px;
}

.tuner-nav-btn {
  background: var(--bg-soft);
  color: var(--fg-muted);
  border: 0;
  padding: 8px 4px;
  font: inherit;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-family: inherit;
}

.tuner-nav-btn:hover {
  background: var(--bg-row);
  color: var(--fg);
}

.tuner-nav-btn:active {
  background: var(--bg-row-hi);
}

.tuner-nav-icon {
  font-size: 14px;
  line-height: 1;
  color: var(--accent);
}

.tuner-nav-label {
  letter-spacing: 0.3px;
}

/* Footer */
.tuner-footer {
  padding: 6px 12px;
  background: var(--bg-soft);
  border-top: 1px solid var(--bg-row);
  font-size: 10px;
  color: var(--fg-muted);
  text-align: center;
}

/* Scrollbar styling — subtle, on-brand */
.station-list::-webkit-scrollbar {
  width: 6px;
}
.station-list::-webkit-scrollbar-thumb {
  background: var(--bg-row-hi);
  border-radius: 3px;
}
.station-list::-webkit-scrollbar-track {
  background: transparent;
}

/* ──────────────────────────────────────────────────────────────────────
   First-run UX hint (v0.4.0)
   When body.is-first-run is set (no station picked), the station list
   subtly pulses with an accent-green glow and the now-playing area gets
   a bouncing ↓ arrow pointing the user at the list. Both removed the
   moment a station is picked, so existing users never see them again.
   ────────────────────────────────────────────────────────────────────── */

@keyframes tuner-pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(109, 191, 122, 0); }
  50%      { box-shadow: 0 0 0 4px rgba(109, 191, 122, 0.25); }
}

@keyframes tuner-bounce {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(3px); }
}

body.is-first-run .stations {
  animation: tuner-pulse-glow 2.4s ease-in-out infinite;
  border-radius: 6px;
}

body.is-first-run .np-track {
  color: var(--accent);
  font-weight: 500;
}

body.is-first-run .np-track::after {
  content: " ↓";
  display: inline-block;
  animation: tuner-bounce 1.8s ease-in-out infinite;
  margin-left: 4px;
}
