/* Sam Radio — sticky listen-while-reading mini-player */
#sam-radio {
  --sr-bg: rgba(17, 17, 17, 0.94);
  --sr-border: #333;
  --sr-accent: #00b4d8;
  --sr-accent-soft: #7fdbff;
  --sr-text: #fff;
  --sr-muted: #aaa;
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  z-index: 99990;
  width: min(360px, calc(100vw - 1.5rem));
  font-family: Inter, system-ui, -apple-system, sans-serif;
  color: var(--sr-text);
  pointer-events: none;
}
#sam-radio * { box-sizing: border-box; }
#sam-radio .sr-panel {
  pointer-events: auto;
  background: var(--sr-bg);
  border: 1px solid var(--sr-border);
  border-radius: 14px;
  box-shadow: 0 8px 32px rgba(0, 180, 216, 0.18), 0 4px 16px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
#sam-radio.sr-collapsed .sr-body { display: none; }
#sam-radio.sr-collapsed .sr-panel { width: auto; }
#sam-radio .sr-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--sr-border);
  background: rgba(0, 180, 216, 0.08);
}
#sam-radio.sr-collapsed .sr-header { border-bottom: none; }
#sam-radio .sr-brand {
  flex: 1;
  min-width: 0;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--sr-accent);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-decoration: none;
}
#sam-radio .sr-brand:hover { color: var(--sr-accent-soft); }
#sam-radio .sr-brand span {
  display: block;
  font-size: 0.68rem;
  font-weight: 400;
  color: var(--sr-muted);
  margin-top: 0.1rem;
}
#sam-radio .sr-collapse {
  background: transparent;
  border: 1px solid var(--sr-border);
  color: var(--sr-muted);
  width: 28px;
  height: 28px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  line-height: 1;
  flex-shrink: 0;
}
#sam-radio .sr-collapse:hover {
  color: var(--sr-accent);
  border-color: var(--sr-accent);
}
#sam-radio .sr-body { padding: 0.65rem 0.75rem 0.75rem; }
#sam-radio .sr-track {
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.15rem;
}
#sam-radio .sr-artist {
  font-size: 0.72rem;
  color: var(--sr-muted);
  margin-bottom: 0.55rem;
}
#sam-radio .sr-controls {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
#sam-radio .sr-btn {
  background: #1a1a1a;
  border: 1px solid var(--sr-border);
  color: var(--sr-text);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  flex-shrink: 0;
}
#sam-radio .sr-btn:hover {
  border-color: var(--sr-accent);
  color: var(--sr-accent);
}
#sam-radio .sr-btn.sr-play {
  width: 42px;
  height: 42px;
  background: var(--sr-accent);
  border-color: var(--sr-accent);
  color: #000;
  font-weight: 700;
}
#sam-radio .sr-btn.sr-play:hover {
  background: var(--sr-accent-soft);
  border-color: var(--sr-accent-soft);
  color: #000;
}
#sam-radio .sr-vol {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
  min-width: 0;
}
#sam-radio .sr-vol input[type="range"] {
  width: 72px;
  accent-color: var(--sr-accent);
  cursor: pointer;
}
#sam-radio .sr-progress {
  margin-top: 0.55rem;
  height: 4px;
  background: #222;
  border-radius: 2px;
  overflow: hidden;
  cursor: pointer;
}
#sam-radio .sr-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--sr-accent), var(--sr-accent-soft));
  border-radius: 2px;
  transition: width 0.1s linear;
}
#sam-radio .sr-time {
  display: flex;
  justify-content: space-between;
  font-size: 0.65rem;
  color: var(--sr-muted);
  margin-top: 0.25rem;
}
#sam-radio .sr-link {
  display: inline-block;
  margin-top: 0.45rem;
  font-size: 0.7rem;
  color: var(--sr-accent-soft);
  text-decoration: none;
}
#sam-radio .sr-link:hover { text-decoration: underline; }

@media (max-width: 520px) {
  #sam-radio {
    bottom: 0.5rem;
    right: 0.5rem;
    left: 0.5rem;
    width: auto;
  }
  #sam-radio .sr-vol input[type="range"] { width: 56px; }
  #sam-radio .sr-brand span { display: none; }
}