/* ============================================================
   player.css — Main Player UI  (Light Theme)
   ============================================================ */

/* ── Desktop Layout ──────────────────────────────────────── */
.app-wrapper {
  display: grid;
  grid-template-columns: 280px 1fr;
  grid-template-rows: 1fr 90px;
  grid-template-areas:
    "sidebar main"
    "player  player";
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}

/* Mobile topbar — hidden on desktop */
.mobile-topbar { display: none; }

/* ── Sidebar ────────────────────────────────────────────── */
.sidebar {
  grid-area: sidebar;
  background: var(--bg-surface);
  border-right: 1.5px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 2px 0 12px rgba(0,0,0,0.04);
}

.sidebar-header {
  padding: 24px 20px 16px;
  border-bottom: 1.5px 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(--accent-light));
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 12px rgba(108,60,225,0.3);
  flex-shrink: 0;
}

.logo h1 {
  font-size: 1.3rem; font-weight: 700;
  background: linear-gradient(135deg, var(--accent), 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: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--t-fast);
}
.nav-btn.active, .nav-btn:hover {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: rgba(108,60,225,0.2);
}

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

.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: 1.5px solid transparent;
}
.playlist-item:hover {
  background: var(--bg-elevated);
  border-color: var(--glass-border);
}
.playlist-item.active {
  background: var(--accent-glow);
  border-color: rgba(108,60,225,0.2);
}
.playlist-item.active .pl-name { color: var(--accent); font-weight: 600; }

.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: 1.5px 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; color: var(--text-primary); }
.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); 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: 1.5px solid var(--glass-border);
  background: var(--bg-surface);
}

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

.playlist-hero {
  display: flex; align-items: center; gap: 24px;
  margin-bottom: 32px; padding: 28px;
  background: linear-gradient(135deg, rgba(108,60,225,0.06), rgba(6,182,212,0.04));
  border-radius: var(--radius-lg);
  border: 1.5px solid rgba(108,60,225,0.1);
  box-shadow: var(--shadow-sm);
}
.hero-cover {
  width: 120px; height: 120px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  flex-shrink: 0;
  box-shadow: var(--shadow-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem;
  border: 1.5px solid var(--glass-border);
}
.hero-info h2  { font-size: 1.8rem; font-weight: 700; margin-bottom: 6px; color: var(--text-primary); }
.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: 0.72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  border-bottom: 1.5px 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: 1.5px solid transparent;
  margin-bottom: 3px;
}
.track-item:hover {
  background: #fff;
  border-color: var(--glass-border);
  box-shadow: var(--shadow-sm);
}
.track-item.playing {
  background: var(--accent-glow);
  border-color: rgba(108,60,225,0.15);
}

.track-num {
  color: var(--text-muted); font-size: 0.85rem; 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); border: 1px solid var(--glass-border); }
.track-text  { min-width: 0; }
.track-title  { font-size: 0.875rem; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text-primary); }
.track-artist { font-size: 0.75rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-item.playing .track-title { color: var(--accent); font-weight: 600; }
.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: rgba(220,38,38,0.08); 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: 0.4; }
.empty-state p { font-size: 0.9rem; }

/* ── Player Bar ─────────────────────────────────────────── */
.player-bar {
  grid-area: player;
  background: #fff;
  border-top: 1.5px solid var(--glass-border);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  align-items: center;
  gap: 16px;
  position: relative; z-index: 100;
}

/* Row1 hidden on desktop */
.player-bar-row1     { display: none; }
.mobile-progress-row { display: none; }
/* Desktop: show track-info directly */
.player-bar > .player-track-info { display: flex; }
.desktop-controls { display: flex; }

.player-track-info { display: flex; align-items: center; gap: 14px; min-width: 0; }
.player-thumb {
  width: 56px; height: 56px;
  border-radius: var(--radius-md); object-fit: cover;
  background: var(--bg-elevated);
  border: 1.5px solid var(--glass-border);
  flex-shrink: 0; transition: box-shadow var(--t-normal);
}
.player-thumb.playing {
  box-shadow: 0 0 0 3px var(--accent-glow), 0 4px 16px rgba(108,60,225,0.2);
  animation: thumbPulse 3s ease-in-out infinite;
}
@keyframes thumbPulse {
  0%,100% { box-shadow: 0 0 0 3px var(--accent-glow); }
  50%      { box-shadow: 0 0 0 5px var(--accent-glow), 0 4px 20px rgba(108,60,225,0.25); }
}
.player-track-text  { min-width: 0; }
.player-track-title  { font-size: 0.875rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text-primary); }
.player-track-artist { font-size: 0.75rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.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); border: none;
}
.ctrl-btn:hover  { color: var(--accent); background: var(--accent-glow); }
.ctrl-btn.active { color: var(--accent); background: var(--accent-glow); }

.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 rgba(108,60,225,0.35);
  transition: all var(--t-normal); border: none;
}
.ctrl-btn-play:hover  { transform: scale(1.08); box-shadow: 0 8px 24px rgba(108,60,225,0.45); }
.ctrl-btn-play:active { transform: scale(0.95); }

.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);
  opacity: 0; transition: opacity var(--t-fast);
  box-shadow: 0 0 6px rgba(108,60,225,0.4);
}
.progress-bar-wrap:hover .progress-fill::after { opacity: 1; }

.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-muted); font-size: 0.9rem; cursor: pointer; transition: color var(--t-fast); }
.volume-icon:hover { color: var(--accent); }
.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); cursor: pointer;
  box-shadow: 0 1px 4px rgba(108,60,225,0.4);
}

#yt-player { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

/* ── Mobile Drawer Backdrop ─────────────────────────────── */
.sidebar-backdrop {
  display: none;
  position: fixed; inset: 0;
  background: rgba(30,20,60,0.35);
  backdrop-filter: blur(4px);
  z-index: 200;
  opacity: 0; pointer-events: none;
  transition: opacity var(--t-normal);
}
.sidebar-backdrop.open { opacity: 1; pointer-events: all; }

/* Drawer — hidden on desktop */
.sidebar-drawer { display: none; }
.drawer-header, .drawer-playlists, .drawer-footer { display: none; }

/* ── Add Track Modal ─────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(30,20,60,0.3); backdrop-filter: blur(6px);
  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: #fff;
  border: 1.5px 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);
  max-height: 90vh; overflow-y: auto;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 24px; color: var(--text-primary); }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.78rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.06em; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 12px; margin-top: 24px; }
.yt-preview {
  display: none; align-items: center; gap: 12px; padding: 12px;
  background: var(--bg-elevated); border-radius: var(--radius-md);
  border: 1.5px 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; color: var(--text-primary); }
.yt-preview-text .author { font-size: 0.75rem; color: var(--text-muted); }

/* ══════════════════════════════════════════════════════════
   MOBILE ≤ 768px
   ══════════════════════════════════════════════════════════ */
@media (max-width: 768px) {

  .app-wrapper {
    display: flex; flex-direction: column;
    height: 100vh; height: 100dvh; overflow: hidden;
  }

  .sidebar { display: none; }

  /* Mobile topbar */
  .mobile-topbar {
    display: flex; flex-shrink: 0;
    align-items: center; justify-content: space-between;
    padding: 0 16px; height: 58px;
    background: #fff;
    border-bottom: 1.5px solid var(--glass-border);
    box-shadow: 0 1px 8px rgba(0,0,0,0.05);
    z-index: 100;
  }
  .mobile-topbar .logo   { margin: 0; gap: 10px; }
  .mobile-topbar .logo-icon { width: 34px; height: 34px; font-size: 1rem; }
  .mobile-topbar .logo h1   { font-size: 1.1rem; }
  .mobile-topbar-right { display: flex; align-items: center; gap: 8px; }

  .mobile-menu-btn {
    width: 40px; height: 40px;
    border-radius: var(--radius-md);
    background: var(--bg-elevated);
    border: 1.5px solid var(--glass-border);
    color: var(--text-primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem; cursor: pointer;
  }

  /* Main */
  .main-content {
    flex: 1; overflow-y: auto; padding: 14px; min-height: 0;
    background: var(--bg-base);
  }

  .playlist-hero {
    flex-direction: column; text-align: center;
    padding: 20px 16px; gap: 14px; margin-bottom: 16px;
  }
  .hero-cover   { width: 90px; height: 90px; font-size: 2.2rem; }
  .hero-info h2 { font-size: 1.2rem; margin-bottom: 4px; }
  .hero-info p  { font-size: 0.82rem; margin-bottom: 12px; }
  .hero-actions { justify-content: center; gap: 8px; }
  .hero-actions .btn { padding: 9px 16px; font-size: 0.82rem; }

  /* Track list */
  .track-list-header {
    display: flex; padding: 6px 12px;
    font-size: 0.68rem; margin-bottom: 4px;
  }
  .track-list-header > div:not(:nth-child(2)) { display: none; }
  .track-list-header > div:nth-child(2) { flex: 1; }

  .track-item {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 12px; margin-bottom: 2px;
  }
  .track-num     { flex-shrink: 0; width: 24px; font-size: 0.8rem; }
  .track-info    { flex: 1; min-width: 0; }
  .track-thumb   { width: 38px; height: 38px; }
  .track-title   { font-size: 0.82rem; }
  .track-artist  { font-size: 0.72rem; }
  .track-item > .track-artist,
  .track-item > .track-duration,
  .track-item > .track-actions { display: none; }

  /* Player bar */
  .player-bar {
    display: flex; flex-direction: column; flex-shrink: 0;
    padding: 10px 16px 14px; gap: 8px;
    height: auto; min-height: 110px;
    border-top: 1.5px solid var(--glass-border);
    background: #fff;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
  }

  .desktop-controls { display: none !important; }
  .player-bar > .player-track-info { display: none; }
  .player-right { display: none; }

  .player-bar-row1 {
    display: flex; align-items: center; gap: 12px; width: 100%;
  }
  .player-bar-row1 .player-track-info {
    display: flex; flex: 1; min-width: 0;
  }
  .player-thumb  { width: 44px; height: 44px; }
  .player-track-title  { font-size: 0.85rem; }
  .player-track-artist { font-size: 0.72rem; }

  .player-buttons { display: flex; align-items: center; gap: 6px; }
  .ctrl-btn       { width: 38px; height: 38px; font-size: 0.95rem; }
  .ctrl-btn-play  { width: 46px; height: 46px; font-size: 1.1rem; }

  /* Mobile progress row */
  .mobile-progress-row {
    display: flex; width: 100%;
  }
  .mobile-progress-row .player-progress {
    max-width: 100%; width: 100%; gap: 8px;
  }
  .progress-bar-wrap { height: 5px; }

  /* Drawer */
  .sidebar-backdrop { display: block; }
  .sidebar-drawer {
    display: flex; flex-direction: column;
    position: fixed; top: 0; left: 0;
    width: 82%; max-width: 300px; height: 100%;
    background: #fff;
    border-right: 1.5px solid var(--glass-border);
    z-index: 300;
    transform: translateX(-100%);
    transition: transform 0.32s cubic-bezier(0.4,0,0.2,1);
    box-shadow: 8px 0 32px rgba(0,0,0,0.1);
    overflow: hidden;
  }
  .sidebar-drawer.open { transform: translateX(0); }

  .drawer-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 16px 14px;
    border-bottom: 1.5px solid var(--glass-border);
    flex-shrink: 0;
    background: #fff;
  }
  .drawer-close {
    width: 34px; height: 34px; border-radius: var(--radius-sm);
    background: var(--bg-elevated); border: 1.5px solid var(--glass-border);
    color: var(--text-muted);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; font-size: 1rem;
  }
  .drawer-playlists {
    display: block; flex: 1; overflow-y: auto; padding: 12px;
    -webkit-overflow-scrolling: touch;
    background: var(--bg-surface);
  }
  .drawer-footer {
    display: block; padding: 14px 16px;
    border-top: 1.5px solid var(--glass-border); flex-shrink: 0;
    background: #fff;
  }

  /* Modal — bottom sheet */
  .modal-overlay { align-items: flex-end; }
  .modal {
    width: 100%; max-width: 100%;
    border-bottom-left-radius: 0; border-bottom-right-radius: 0;
    padding: 24px 20px; transform: translateY(100%);
  }
  .modal-overlay.open .modal { transform: translateY(0); }
  .form-row { grid-template-columns: 1fr; }

  #toast-container { bottom: 130px; right: 12px; left: 12px; }
  .toast { min-width: unset; width: 100%; }
}