:root {
  --accent-indigo: #8B5CF6;
  --accent-indigo-light: #A78BFA;
  --accent-indigo-dark: #6D28D9;

  --bg-deep: #0A0A0F;
  --bg-panel: #1A1A2E;
  --bg-card: #16162A;

  --genre-techno: #EF4444;
  --genre-house: #3B82F6;
  --genre-trance: #06B6D4;
  --genre-dnb: #F59E0B;
  --genre-deep-house: #8B5CF6;
  --genre-minimal: #6B7280;
  --genre-progressive: #10B981;

  --text-primary: #FFFFFF;
  --text-secondary: rgba(255,255,255,0.7);
  --text-tertiary: rgba(255,255,255,0.4);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: -apple-system, "SF Pro Rounded", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  overscroll-behavior: none;
  width: 100%;
  height: 100%;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: linear-gradient(to bottom, var(--bg-deep), var(--bg-panel));
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

/* ---------- Top Nav ---------- */

.topnav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  backdrop-filter: blur(20px);
  background: rgba(10,10,15,0.6);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.brand {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.tabs {
  display: flex;
  gap: 8px;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 999px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background .2s, color .2s;
}

.tab-btn:hover { background: rgba(255,255,255,0.06); color: var(--text-primary); }
.tab-btn.active { background: rgba(139,92,246,0.2); color: var(--accent-indigo-light); }

main {
  flex: 1;
  padding-bottom: 80px;
}

/* ---------- Hero ---------- */

.hero-wrap {
  padding: 24px 40px 0;
}

.hero-slide {
  position: relative;
  height: 500px;
  border-radius: 30px;
  overflow: hidden;
  background: var(--bg-deep);
  display: flex;
  align-items: flex-end;
}

.hero-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--glow-color, var(--accent-indigo)) 0%, transparent 60%), var(--bg-deep);
  opacity: 0.9;
}

.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 0%, rgba(10,10,15,0.8) 70%, var(--bg-deep) 100%);
}

.hero-content {
  position: relative;
  padding: 40px;
  max-width: 720px;
}

.badge-row { display: flex; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }

.badge {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 4px 10px;
  border-radius: 999px;
  backdrop-filter: blur(10px);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
}

.badge-format {
  display: inline-flex; align-items: center; gap: 4px;
  background: rgba(0,0,0,0.6);
  border: 1px solid rgba(255,255,255,0.3);
}

.badge-genre {
  border-width: 1px;
}

.hero-title {
  font-size: 56px;
  font-weight: 800;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}

.hero-tagline {
  font-size: 22px;
  color: var(--text-secondary);
  margin: 0 0 16px;
  font-weight: 500;
}

.btn-row { display: flex; gap: 16px; margin-top: 16px; }

.btn {
  border: none;
  border-radius: 14px;
  padding: 14px 28px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: transform .15s, box-shadow .15s;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--accent-indigo);
  color: white;
  box-shadow: 0 8px 24px rgba(139,92,246,0.35);
}

.btn-secondary {
  background: rgba(255,255,255,0.08);
  color: white;
  border: 1px solid rgba(255,255,255,0.2);
}

.hero-dots {
  position: absolute;
  bottom: 20px; right: 30px;
  display: flex; gap: 8px;
}
.hero-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.3); cursor: pointer; }
.hero-dot.active { background: var(--accent-indigo-light); }

/* ---------- Swimlane ---------- */

.swimlane { margin-top: 40px; }

.swimlane-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 40px 16px;
}

.swimlane-title { font-size: 24px; font-weight: 700; margin: 0; }

.see-all { color: var(--accent-indigo-light); font-size: 13px; font-weight: 600; cursor: pointer; background: none; border: none; }

.swimlane-scroll {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding: 4px 40px 12px;
  scroll-snap-type: x proximity;
}
.swimlane-scroll::-webkit-scrollbar { height: 6px; }
.swimlane-scroll::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }

/* ---------- Poster Card ---------- */

.poster-card {
  flex: 0 0 auto;
  width: 220px;
  height: 330px;
  border-radius: 20px;
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
  cursor: pointer;
  scroll-snap-align: start;
  transition: transform .25s ease, box-shadow .25s ease;
}

.poster-card:hover {
  transform: scale(1.05);
  box-shadow: 0 20px 40px rgba(139,92,246,0.25);
}

.poster-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--glow-color, var(--accent-indigo)) 0%, transparent 60%), var(--bg-card);
  opacity: 0.5;
}

.poster-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(0,0,0,0.75) 100%);
}

.poster-content {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 16px;
}

.poster-badges { position: absolute; top: 16px; left: 16px; display: flex; gap: 6px; }

.poster-duration { font-size: 10px; font-weight: 700; letter-spacing: .04em; color: var(--text-secondary); margin-bottom: 2px; }
.poster-name { font-size: 18px; font-weight: 700; margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.poster-venue { font-size: 13px; color: var(--text-tertiary); margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---------- Grid (search / library) ---------- */

.grid-wrap { padding: 16px 40px 60px; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 32px 24px;
}

/* ---------- Filter chips ---------- */

.chip-row {
  display: flex; gap: 12px; padding: 16px 40px; overflow-x: auto;
}

.chip {
  padding: 8px 16px; border-radius: 999px; font-size: 14px; font-weight: 700;
  background: rgba(255,255,255,0.1); border: 1px solid transparent;
  cursor: pointer; white-space: nowrap; color: var(--text-primary);
}
.chip.active { background: color-mix(in srgb, var(--chip-color, var(--accent-indigo)) 30%, transparent); border-color: var(--chip-color, var(--accent-indigo)); }

.search-box {
  margin: 16px 40px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px;
  padding: 12px 16px;
}
.search-box input {
  flex: 1;
  background: none;
  border: none;
  color: white;
  font-size: 15px;
  outline: none;
}
.search-box input::placeholder { color: var(--text-tertiary); }

/* ---------- Empty state ---------- */

.empty-state {
  text-align: center;
  padding: 100px 20px;
  color: var(--text-secondary);
}
.empty-state h3 { font-size: 22px; color: var(--text-secondary); margin: 12px 0 6px; }
.empty-state p { color: var(--text-tertiary); margin: 0; }
.empty-state .icon { font-size: 48px; opacity: .5; }

/* ---------- Detail view ---------- */

.detail-hero {
  position: relative;
  height: 380px;
  display: flex; align-items: flex-end; justify-content: center;
  text-align: center;
  background: var(--bg-card);
}

.detail-hero-content { position: relative; padding-bottom: 32px; max-width: 800px; }
.detail-title { font-size: 44px; font-weight: 800; margin: 12px 0 8px; }
.detail-sub { font-size: 18px; color: var(--text-secondary); margin: 0; }

.detail-body { max-width: 1200px; margin: 0 auto; padding: 32px 40px 80px; }

.action-bar { display: flex; gap: 16px; align-items: center; margin-bottom: 32px; }

.icon-btn {
  width: 48px; height: 48px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
  cursor: pointer; font-size: 18px; color: white;
}
.icon-btn.active { color: #ef4444; border-color: #ef4444; }

hr.sep { border: none; border-top: 1px solid rgba(255,255,255,0.08); margin: 24px 0; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

.section-label { font-size: 12px; font-weight: 700; letter-spacing: .05em; color: var(--text-tertiary); margin-bottom: 12px; }

.dj-row { display: flex; gap: 16px; align-items: center; margin-bottom: 12px; }
.avatar { width: 80px; height: 80px; border-radius: 50%; background: rgba(255,255,255,0.15); flex-shrink: 0; }

.tracklist { background: var(--bg-card); border-radius: 16px; padding: 24px; }
.track-row { display: flex; align-items: center; gap: 16px; padding: 8px 0; }
.track-idx { width: 20px; color: var(--text-tertiary); font-size: 13px; }
.track-title { font-weight: 600; margin: 0; }
.track-artist { font-size: 13px; color: var(--text-secondary); margin: 0; }
.track-bpm { font-size: 11px; font-weight: 700; color: var(--text-tertiary); background: rgba(255,255,255,0.1); padding: 2px 8px; border-radius: 999px; }
.track-time { font-size: 12px; color: var(--text-tertiary); font-variant-numeric: tabular-nums; }
.track-spacer { flex: 1; }
.track-divider { border-top: 1px solid rgba(255,255,255,0.05); }

/* ---------- Profile / Forms ---------- */

.form-section { max-width: 640px; margin: 0 auto; padding: 32px 24px; }
.form-card { background: var(--bg-card); border-radius: 16px; padding: 8px 0; margin-bottom: 24px; }
.form-card h4 { padding: 16px 20px 4px; font-size: 12px; letter-spacing: .05em; color: var(--text-tertiary); margin: 0; }
.form-row { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; border-top: 1px solid rgba(255,255,255,0.05); }
.form-row:first-of-type { border-top: none; }
.form-hint { font-size: 12px; color: var(--text-tertiary); padding: 0 20px 14px; margin: 0; }

.switch { position: relative; width: 46px; height: 26px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute; cursor: pointer; inset: 0; background: rgba(255,255,255,0.15);
  border-radius: 999px; transition: .2s;
}
.slider::before {
  content: ""; position: absolute; width: 20px; height: 20px; left: 3px; bottom: 3px;
  background: white; border-radius: 50%; transition: .2s;
}
input:checked + .slider { background: var(--accent-indigo); }
input:checked + .slider::before { transform: translateX(20px); }

select.pill-select {
  background: rgba(255,255,255,0.08); color: white; border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px; padding: 6px 10px; font-size: 14px;
}

/* ---------- Loading ---------- */

.loading-wrap { display: flex; align-items: center; justify-content: center; height: 60vh; }
.spinner {
  width: 40px; height: 40px; border-radius: 50%;
  border: 3px solid rgba(255,255,255,0.15); border-top-color: var(--accent-indigo);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Immersive Player Overlay ---------- */

#player-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: black;
  display: none;
}
#player-overlay.open { display: block; }

#player-canvas-wrap { position: absolute; inset: 0; }
#player-canvas { width: 100%; height: 100%; display: block; }

#flat-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; background: black; }

.player-hud {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 24px 32px 28px;
  background: linear-gradient(to top, rgba(0,0,0,0.85), transparent);
  transition: opacity .3s ease;
}
.player-hud.hidden { opacity: 0; pointer-events: none; }

.player-top-row { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 16px; }
.player-now-playing { font-size: 10px; letter-spacing: .05em; color: var(--accent-indigo-light); font-weight: 700; margin: 0 0 4px; }
.player-track-title { font-size: 20px; font-weight: 700; margin: 0 0 2px; }
.player-track-sub { font-size: 14px; color: var(--text-secondary); margin: 0; }

.player-close {
  width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,0.1);
  border: none; color: white; font-size: 20px; cursor: pointer;
}

.progress-bar { height: 4px; background: rgba(255,255,255,0.2); border-radius: 999px; overflow: hidden; margin-bottom: 6px; cursor: pointer; }
.progress-fill { height: 100%; background: var(--accent-indigo); width: 0%; }
.time-row { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-secondary); font-variant-numeric: tabular-nums; margin-bottom: 16px; }

.player-controls-row { display: flex; align-items: center; gap: 32px; }
.camera-switch { display: flex; gap: 8px; padding: 6px; background: rgba(255,255,255,0.08); border-radius: 999px; }
.camera-btn { background: none; border: none; color: var(--text-secondary); font-size: 13px; font-weight: 600; padding: 8px 14px; border-radius: 999px; cursor: pointer; }
.camera-btn.active { background: var(--accent-indigo); color: white; }

.playback-controls { display: flex; align-items: center; gap: 20px; margin: 0 auto; }
.playback-controls button { background: none; border: none; color: white; cursor: pointer; }
.play-btn { font-size: 48px; line-height: 1; }
.skip-btn { font-size: 22px; }

.vr-enter-btn {
  position: absolute; top: 24px; right: 24px;
  background: var(--accent-indigo); color: white; border: none;
  padding: 12px 22px; border-radius: 999px; font-weight: 700; font-size: 14px; cursor: pointer;
  box-shadow: 0 8px 20px rgba(139,92,246,0.4);
  z-index: 5;
}

.player-hint {
  position: absolute; top: 24px; left: 24px; z-index: 5;
  font-size: 13px; color: var(--text-secondary); background: rgba(0,0,0,0.5);
  padding: 8px 14px; border-radius: 999px;
}

/* ---------- Responsive ---------- */

@media (max-width: 720px) {
  .topnav { padding: 12px 16px; }
  .tabs { gap: 2px; }
  .tab-btn { padding: 8px 10px; font-size: 12px; }
  .hero-wrap, .swimlane-header, .swimlane-scroll, .grid-wrap, .chip-row, .search-box { padding-left: 16px; padding-right: 16px; }
  .hero-slide { height: 400px; }
  .hero-title { font-size: 34px; }
  .detail-body { padding: 24px 16px 60px; }
  .two-col { gap: 32px; }
}