/* ============================================
   Channel 42 — LucidDreamer.AI Player
   Dawn gradient theme · Glassmorphism · Mobile-first
   ============================================ */

/* ---- Custom Properties ---- */
:root {
  /* Dawn palette */
  --night: #0a0e27;
  --deep-navy: #11173a;
  --twilight: #2a1a4a;
  --dawn-purple: #4a2a6a;
  --dawn-orange: #e87b3a;
  --dawn-gold: #f5c26b;
  --dawn-light: #fce0b8;

  /* Accent */
  --accent: #ff8c42;
  --accent-glow: rgba(255, 140, 66, 0.35);
  --accent-soft: rgba(255, 140, 66, 0.12);

  /* Glass surfaces */
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.10);
  --glass-blur: 20px;
  --glass-hover: rgba(255, 255, 255, 0.09);

  /* Text */
  --text-primary: #f5f0e8;
  --text-secondary: rgba(245, 240, 232, 0.65);
  --text-muted: rgba(245, 240, 232, 0.40);

  /* Sizing */
  --radius-lg: 24px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --gap: 1rem;
  --max-width: 640px;

  /* Animation */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --transition: 0.3s var(--ease);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-weight: 400;
  color: var(--text-primary);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
  position: relative;

  /* Dawn gradient background */
  background: linear-gradient(
    170deg,
    var(--night) 0%,
    var(--deep-navy) 25%,
    var(--twilight) 50%,
    var(--dawn-purple) 70%,
    var(--dawn-orange) 90%,
    var(--dawn-gold) 100%
  );
  background-attachment: fixed;
}

/* ---- Dawn animated overlay ---- */
.dawn-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(
    ellipse 80% 50% at 50% 100%,
    rgba(255, 140, 66, 0.18),
    transparent 60%
  );
  animation: dawnPulse 8s ease-in-out infinite alternate;
}

@keyframes dawnPulse {
  0% { opacity: 0.6; }
  100% { opacity: 1; }
}

/* ---- Stars ---- */
.stars {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.star {
  position: absolute;
  background: white;
  border-radius: 50%;
  opacity: 0;
  animation: twinkle var(--twinkle-duration, 3s) ease-in-out infinite;
}

@keyframes twinkle {
  0%, 100% { opacity: 0; }
  50% { opacity: var(--twinkle-brightness, 0.7); }
}

/* ---- Header ---- */
.header {
  width: 100%;
  max-width: var(--max-width);
  padding: 1.5rem 1.25rem 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1;
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-42 {
  font-size: 2.5rem;
  font-weight: 700;
  font-family: 'Inter', sans-serif;
  background: linear-gradient(135deg, var(--dawn-gold), var(--dawn-orange));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 30px var(--accent-glow);
  filter: drop-shadow(0 0 12px var(--accent-glow));
  animation: glow42 3s ease-in-out infinite alternate;
  line-height: 1;
}

@keyframes glow42 {
  0% { filter: drop-shadow(0 0 8px var(--accent-glow)); }
  100% { filter: drop-shadow(0 0 20px var(--accent-glow)); }
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--text-primary);
}

.brand-sub {
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* ---- Live indicator ---- */
.live-indicator {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding: 0.3rem 0.7rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  backdrop-filter: blur(10px);
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #f56565;
  box-shadow: 0 0 8px #f56565;
  animation: livePulse 1.5s ease-in-out infinite;
}

.live-indicator.live .live-dot {
  background: #48bb78;
  box-shadow: 0 0 8px #48bb78;
}

.live-indicator.live .live-text {
  color: #48bb78;
}

@keyframes livePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ---- Main container ---- */
.player-container {
  width: 100%;
  max-width: var(--max-width);
  padding: 1rem 1.25rem 2rem;
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  z-index: 1;
  position: relative;
  flex: 1;
}

/* ---- Glass panels ---- */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: background var(--transition), border-color var(--transition);
}

/* ---- Now Playing ---- */
.now-playing {
  text-align: center;
}

.np-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.track-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  transition: opacity var(--transition);
}

.track-title.fade {
  opacity: 0;
}

.track-meta {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.track-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
  max-width: 420px;
  margin: 0 auto;
}

/* ---- Visualizer ---- */
.visualizer-wrap {
  margin: 1.5rem 0;
  height: 120px;
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.visualizer {
  width: 100%;
  height: 100%;
  display: block;
}

/* Idle animation when not playing */
.visualizer-wrap.idle .visualizer {
  opacity: 0.3;
}

.visualizer-wrap.idle::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg,
    transparent,
    rgba(255, 140, 66, 0.06),
    transparent
  );
  animation: idleScan 3s linear infinite;
}

@keyframes idleScan {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ---- Progress bar ---- */
.progress-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.time-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 36px;
  font-variant-numeric: tabular-nums;
}

.time-label:last-child {
  text-align: right;
}

.progress-bar {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  position: relative;
  cursor: pointer;
  outline: none;
}

.progress-bar:focus-visible {
  box-shadow: 0 0 0 3px var(--accent-soft);
  border-radius: 3px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--dawn-orange), var(--dawn-gold));
  border-radius: 3px;
  width: 0%;
  transition: width 0.5s linear;
  box-shadow: 0 0 8px var(--accent-glow);
}

.progress-handle {
  position: absolute;
  top: 50%;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: white;
  transform: translate(-50%, -50%);
  left: 0%;
  transition: left 0.5s linear, transform 0.15s var(--ease);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  opacity: 0;
}

.progress-bar:hover .progress-handle,
.progress-bar:focus-visible .progress-handle {
  opacity: 1;
}

/* ---- Controls ---- */
.controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

.ctrl-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  transition: color var(--transition), transform 0.15s var(--ease);
  padding: 0.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ctrl-btn:hover {
  color: var(--text-primary);
  transform: scale(1.1);
}

.ctrl-btn:active {
  transform: scale(0.95);
}

.ctrl-secondary {
  width: 44px;
  height: 44px;
  opacity: 0.6;
}

.ctrl-play {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--dawn-orange), var(--accent));
  color: white;
  box-shadow: 0 4px 24px var(--accent-glow);
  border-radius: 50%;
}

.ctrl-play:hover {
  color: white;
  box-shadow: 0 6px 32px var(--accent-glow);
  transform: scale(1.08);
}

.ctrl-play.playing {
  animation: playGlow 2s ease-in-out infinite alternate;
}

@keyframes playGlow {
  0% { box-shadow: 0 4px 24px var(--accent-glow); }
  100% { box-shadow: 0 4px 36px var(--accent-glow); }
}

/* ---- Volume ---- */
.volume-section {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding-top: 0.25rem;
}

.vol-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 120px;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--dawn-gold);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  transition: transform 0.15s var(--ease);
}

.volume-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.volume-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--dawn-gold);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

/* ---- Section title ---- */
.section-title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

/* ---- Up Next ---- */
.up-next-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.up-next-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  transition: background var(--transition);
}

.up-next-item:hover {
  background: rgba(255, 255, 255, 0.06);
}

.up-next-item.placeholder {
  opacity: 0.4;
}

.un-time {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  min-width: 42px;
  font-variant-numeric: tabular-nums;
}

.un-info {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  overflow: hidden;
}

.un-title {
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.un-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ---- Feedback ---- */
.feedback-row {
  display: flex;
  gap: 0.5rem;
}

.feedback-input {
  flex: 1;
  padding: 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition), background var(--transition);
}

.feedback-input::placeholder {
  color: var(--text-muted);
}

.feedback-input:focus {
  border-color: var(--accent);
  background: rgba(0, 0, 0, 0.3);
}

.feedback-submit {
  padding: 0.75rem 1.25rem;
  background: linear-gradient(135deg, var(--dawn-orange), var(--accent));
  border: none;
  border-radius: var(--radius-md);
  color: white;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.15s var(--ease), box-shadow var(--transition);
  box-shadow: 0 2px 12px var(--accent-glow);
}

.feedback-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.feedback-submit:active {
  transform: translateY(0);
}

.feedback-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.feedback-status {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  min-height: 1.2em;
}

.feedback-status.success {
  color: #68d391;
}

.feedback-status.error {
  color: #fc8181;
}

/* ---- Footer ---- */
.footer {
  width: 100%;
  max-width: var(--max-width);
  padding: 1rem 1.25rem 2rem;
  text-align: center;
  z-index: 1;
  position: relative;
}

.footer p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ---- Responsive: tablet+ ---- */
@media (min-width: 600px) {
  :root {
    --max-width: 580px;
  }

  .brand-42 {
    font-size: 3rem;
  }

  .track-title {
    font-size: 1.75rem;
  }

  .visualizer-wrap {
    height: 140px;
  }

  .ctrl-play {
    width: 72px;
    height: 72px;
  }
}

/* ---- Responsive: desktop ---- */
@media (min-width: 900px) {
  :root {
    --max-width: 640px;
  }

  body {
    padding-top: 1rem;
  }

  .visualizer-wrap {
    height: 160px;
  }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .dawn-overlay,
  .stars {
    display: none;
  }
}

/* ---- High contrast ---- */
@media (prefers-contrast: high) {
  :root {
    --text-secondary: rgba(245, 240, 232, 0.85);
    --text-muted: rgba(245, 240, 232, 0.7);
    --glass-bg: rgba(255, 255, 255, 0.12);
    --glass-border: rgba(255, 255, 255, 0.25);
  }
}

/* ---- Touch device tweaks ---- */
@media (hover: none) {
  .progress-handle {
    opacity: 1;
    width: 16px;
    height: 16px;
  }

  .ctrl-secondary {
    width: 48px;
    height: 48px;
  }

  .feedback-submit {
    padding: 0.75rem 1rem;
  }
}