/* ============================================================
   player.css — Main Player UI
   ============================================================ */

/* ── Layout ─────────────────────────────────────────────── */
.app-wrapper {
  display: grid;
  grid-template-columns: 280px 1fr;
  grid-template-rows: 1fr 100px;
  grid-template-areas:
    "sidebar main"
    "player  player";
  height: 100vh;
  overflow: hidden;
}

/* ── Sidebar ────────────────────────────────────────────── */
.sidebar {
  grid-area: sidebar;
  background: var(--bg-surface);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  padding: 24px 20px 16px;
  border-bottom: 1px solid var(--glass-border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--glow-accent);
}

.logo h1 {
  font-size: 1.3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-light), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-nav {
  display: flex;
  gap: 6px;
}

.nav-btn {
  flex: 1;
  padding: 8px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--t-fast);
}

.nav-btn.active, .nav-btn:hover {
  background: var(--accent-glow);
  color: var(--accent-light);
  border-color: rgba(124,77,255,0.3);
}

.playlists-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px 12px;
}

.playlist-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--t-fast);
  margin-bottom: 4px;
  border: 1px solid transparent;
}

.playlist-item:hover {
  background: var(--glass);
  border-color: var(--glass-border);
}

.playlist-item.active {
  background: var(--accent-glow);
  border-color: rgba(124,77,255,0.3);
}

.playlist-item.active .pl-name { color: var(--accent-light); }

.pl-cover {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  background: var(--bg-elevated);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  border: 1px solid var(--glass-border);
}

.pl-info { flex: 1; min-width: 0; }
.pl-name { font-size: 0.875rem; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pl-meta { font-size: 0.75rem; color: var(--text-muted); }

.pl-playing-indicator {
  width: 20px;
  height: 20px;
  display: none;
  align-items: center;
  justify-content: center;
}

.playlist-item.active .pl-playing-indicator { display: flex; }

.pl-playing-indicator span {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 14px;
}

.pl-playing-indicator span i {
  width: 3px;
  background: var(--accent-light);
  border-radius: 2px;
  animation: equalizerBar 0.8s ease-in-out infinite;
}

.pl-playing-indicator span i:nth-child(1) { height: 40%; animation-delay: 0s; }
.pl-playing-indicator span i:nth-child(2) { height: 80%; animation-delay: 0.2s; }
.pl-playing-indicator span i:nth-child(3) { height: 60%; animation-delay: 0.4s; }

@keyframes equalizerBar {
  0%, 100% { transform: scaleY(0.4); }
  50%       { transform: scaleY(1); }
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--glass-border);
}

/* ── Main Content ───────────────────────────────────────── */
.main-content {
  grid-area: main;
  overflow-y: auto;
  padding: 32px;
  background: var(--bg-base);
}

.main-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 32px;
  gap: 16px;
}

.playlist-hero {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 32px;
  padding: 28px;
  background: linear-gradient(135deg, rgba(124,77,255,0.12), rgba(0,229,255,0.06));
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
}

.hero-cover {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-md);
  object-fit: cover;
  background: var(--bg-elevated);
  flex-shrink: 0;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  border: 1px solid var(--glass-border);
}

.hero-info h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.hero-info p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── Track List ─────────────────────────────────────────── */
.track-list-header {
  display: grid;
  grid-template-columns: 40px 1fr 160px 80px 50px;
  gap: 12px;
  padding: 8px 16px;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--glass-border);
  margin-bottom: 8px;
}

.track-item {
  display: grid;
  grid-template-columns: 40px 1fr 160px 80px 50px;
  gap: 12px;
  align-items: center;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--t-fast);
  border: 1px solid transparent;
  margin-bottom: 4px;
}

.track-item:hover {
  background: var(--glass);
  border-color: var(--glass-border);
}

.track-item.playing {
  background: rgba(124,77,255,0.08);
  border-color: rgba(124,77,255,0.2);
}

.track-num {
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
}

.track-item.playing .track-num { color: var(--accent); }

.track-item:hover .track-num-text { display: none; }
.track-item:hover .track-play-icon { display: flex !important; }

.track-play-icon { display: none; color: var(--text-primary); font-size: 1rem; }
.track-item.playing .track-play-icon { display: flex; color: var(--accent); }
.track-item.playing .track-num-text { display: none; }

.track-info { display: flex; align-items: center; gap: 12px; min-width: 0; }

.track-thumb {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--bg-elevated);
}

.track-text { min-width: 0; }

.track-title {
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.track-item.playing .track-title { color: var(--accent-light); }

.track-artist { font-size: 0.75rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.track-duration { font-size: 0.8rem; color: var(--text-secondary); text-align: right; }

.track-actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
  opacity: 0;
  transition: opacity var(--t-fast);
}

.track-item:hover .track-actions { opacity: 1; }

.track-action-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  transition: all var(--t-fast);
}

.track-action-btn:hover { background: var(--bg-hover); color: var(--danger); }

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state .empty-icon { font-size: 3rem; margin-bottom: 16px; opacity: 0.5; }
.empty-state p { font-size: 0.9rem; }

/* ── Player Bar ─────────────────────────────────────────── */
.player-bar {
  grid-area: player;
  background: var(--bg-surface);
  border-top: 1px solid var(--glass-border);
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  align-items: center;
  gap: 16px;
  position: relative;
  z-index: 100;
}

/* Track Info */
.player-track-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.player-thumb {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  object-fit: cover;
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  flex-shrink: 0;
  transition: box-shadow var(--t-normal);
}

.player-thumb.playing {
  box-shadow: 0 0 20px var(--accent-glow);
  animation: thumbPulse 3s ease-in-out infinite;
}

@keyframes thumbPulse {
  0%, 100% { box-shadow: 0 0 12px var(--accent-glow); }
  50%       { box-shadow: 0 0 28px var(--accent-glow), 0 0 48px rgba(124,77,255,0.15); }
}

.player-track-text { min-width: 0; }

.player-track-title {
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
  color: var(--text-primary);
}

.player-track-artist {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Controls */
.player-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.player-buttons {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ctrl-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: transparent;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--t-fast);
}

.ctrl-btn:hover { color: var(--text-primary); background: var(--bg-hover); }
.ctrl-btn.active { color: var(--accent-light); }

.ctrl-btn-play {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  font-size: 1.2rem;
  box-shadow: 0 4px 16px var(--accent-glow);
  transition: all var(--t-normal);
}

.ctrl-btn-play:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 28px var(--accent-glow);
}

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

/* Progress */
.player-progress {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  max-width: 500px;
}

.time-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 36px;
}

.time-label.end { text-align: right; }

.progress-bar-wrap {
  flex: 1;
  height: 4px;
  background: var(--bg-hover);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
  transition: height var(--t-fast);
}

.progress-bar-wrap:hover { height: 6px; }

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 2px;
  width: 0%;
  pointer-events: none;
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  right: -5px;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-light);
  opacity: 0;
  transition: opacity var(--t-fast);
}

.progress-bar-wrap:hover .progress-fill::after { opacity: 1; }

/* Volume */
.player-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.volume-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.volume-icon { color: var(--text-secondary); font-size: 0.9rem; cursor: pointer; }
.volume-icon:hover { color: var(--text-primary); }

.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 90px;
  height: 4px;
  background: var(--bg-hover);
  border-radius: 2px;
  cursor: pointer;
  outline: none;
  border: none;
  padding: 0;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-light);
  cursor: pointer;
}

/* Hidden YouTube Player */
#yt-player { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

/* ── Add Track Modal ─────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-normal);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 90%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform var(--t-slow);
}

.modal-overlay.open .modal { transform: translateY(0); }

.modal h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 24px; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.8rem; font-weight: 500; color: var(--text-secondary); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.05em; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.modal-actions { display: flex; justify-content: flex-end; gap: 12px; margin-top: 24px; }

/* Track preview in modal */
.yt-preview {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  margin-top: 12px;
}

.yt-preview.visible { display: flex; }

.yt-preview img { width: 60px; height: 45px; border-radius: var(--radius-sm); object-fit: cover; }
.yt-preview-text .title { font-size: 0.85rem; font-weight: 500; }
.yt-preview-text .author { font-size: 0.75rem; color: var(--text-muted); }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 900px) {
  .app-wrapper {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr 88px;
    grid-template-areas:
      "sidebar"
      "main"
      "player";
  }

  .sidebar {
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--glass-border);
  }

  .playlists-list { max-height: 180px; }

  .player-bar {
    grid-template-columns: 1fr;
    padding: 8px 16px;
    gap: 6px;
  }

  .track-list-header,
  .track-item { grid-template-columns: 32px 1fr 50px; }

  .track-list-header .col-artist,
  .track-item .track-duration { display: none; }
}

@media (max-width: 600px) {
  .playlist-hero { flex-direction: column; text-align: center; }
  .hero-actions { justify-content: center; }
  .player-bar { grid-template-columns: 1fr; }
  .player-track-info { display: none; }
}