:root {
  color-scheme: dark;
  --theme-accent-rgb: 102, 166, 255;
  --theme-glow-rgb: 102, 166, 255;
  --theme-surface-rgb: 18, 24, 38;
  --theme-bg-top: #12151f;
  --theme-bg-mid: #0b1020;
  --theme-bg-bottom: #05070d;
  --text: #f9fafb;
  --muted: #c8d0df;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(var(--theme-accent-rgb), 0.2);
  --primary: rgb(var(--theme-accent-rgb));
  --primary-2: rgb(var(--theme-glow-rgb));
  --ok: #34d399;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  color: var(--text);
  min-height: 100vh;
  background: radial-gradient(circle at top left, var(--theme-bg-top), var(--theme-bg-mid) 45%, var(--theme-bg-bottom) 100%);
  transition: background 360ms ease;
}

body.is-loading {
  overflow: hidden;
}

.bg-gradient {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(40% 30% at 20% 15%, rgba(var(--theme-glow-rgb), 0.22), transparent 70%),
    radial-gradient(35% 25% at 80% 20%, rgba(var(--theme-accent-rgb), 0.18), transparent 70%),
    radial-gradient(45% 35% at 50% 95%, rgba(var(--theme-accent-rgb), 0.12), transparent 70%);
  filter: blur(12px);
  animation: pulse 8s ease-in-out infinite alternate;
  pointer-events: none;
}

.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-items: center;
  background: rgba(2, 6, 23, 0.72);
  backdrop-filter: blur(10px) saturate(120%);
}

.loading-card {
  width: min(92vw, 420px);
  padding: 28px;
  text-align: center;
  display: grid;
  justify-items: center;
  gap: 14px;
}

.loading-progress-wrap {
  width: 100%;
  display: grid;
  gap: 8px;
  margin-top: 4px;
}

.loading-step {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  text-transform: lowercase;
  letter-spacing: 0.02em;
}

.genre-autocomplete {
  position: relative;
}

.custom-genre-row {
  display: flex;
  gap: 8px;
}

.genre-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  z-index: 12;
  display: grid;
  gap: 6px;
  padding: 10px;
  border-radius: 16px;
  background: rgba(8, 12, 22, 0.92);
  border: 1px solid rgba(var(--theme-accent-rgb), 0.22);
  backdrop-filter: blur(18px) saturate(140%);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  max-height: 240px;
  overflow: auto;
}

.genre-option {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  cursor: pointer;
  transition: transform 140ms ease, background 140ms ease, border-color 140ms ease;
}

.genre-option:hover {
  transform: translateY(-1px);
  background: rgba(var(--theme-accent-rgb), 0.14);
  border-color: rgba(var(--theme-accent-rgb), 0.28);
}

.genre-option strong {
  font-weight: 600;
}

.genre-option small {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.loading-card h2,
.loading-card p {
  margin: 0;
}

.loading-card p {
  color: var(--muted);
}

.loader-ring {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 4px solid rgba(255, 255, 255, 0.12);
  border-top-color: rgb(var(--theme-accent-rgb));
  border-right-color: rgba(var(--theme-accent-rgb), 0.45);
  animation: spin 900ms linear infinite;
  box-shadow: 0 0 30px rgba(var(--theme-accent-rgb), 0.18);
}

.app-shell {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  gap: 16px;
}

.glass {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px) saturate(130%);
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.topbar {
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

h1 {
  margin: 0;
  font-size: 1.7rem;
}

.subtitle {
  margin: 6px 0 0;
  color: var(--muted);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 14px;
}

.stats > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
}

.stats span {
  color: var(--muted);
  font-size: 0.9rem;
}

.stats strong {
  margin-top: 4px;
  font-size: 1.25rem;
}

.album-card {
  padding: 18px;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 20px;
  animation: slideIn 260ms ease-out;
}

.cover-wrap {
  aspect-ratio: 1 / 1;
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.06);
}

.cover-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.album-info {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 16px;
}

.meta h2,
.meta h3 {
  margin: 0;
}

.meta h2 {
  font-size: 1.6rem;
}

.meta h3 {
  margin-top: 4px;
  color: var(--muted);
  font-weight: 500;
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  margin-bottom: 10px;
}

.badge.done {
  background: rgba(52, 211, 153, 0.2);
  color: #a7f3d0;
}

.player-wrap {
  display: grid;
  gap: 8px;
}

audio {
  width: 100%;
}

.timecode {
  font-variant-numeric: tabular-nums;
  color: var(--muted);
}

.chips,
.selected {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border-radius: 999px;
  padding: 7px 12px;
  cursor: pointer;
  transition: transform 140ms ease, background 140ms ease;
}

.chip:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.18);
}

.chip.active {
  background: linear-gradient(145deg, var(--primary), var(--primary-2));
  border-color: transparent;
  box-shadow: 0 10px 24px rgba(var(--theme-accent-rgb), 0.22);
}

.custom-genre {
  display: flex;
  gap: 8px;
  margin: 14px 0;
}

input {
  flex: 1;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(0, 0, 0, 0.2);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
}

.btn-primary,
.btn-secondary,
.nav-btn {
  border: none;
  border-radius: 12px;
  padding: 10px 14px;
  color: white;
  cursor: pointer;
  transition: transform 140ms ease, opacity 140ms ease;
}

.btn-primary {
  background: linear-gradient(145deg, var(--primary), var(--primary-2));
  box-shadow: 0 10px 24px rgba(var(--theme-accent-rgb), 0.18);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.14);
}

.nav-btn {
  width: 44px;
  height: 44px;
  font-size: 1.25rem;
  background: rgba(255, 255, 255, 0.12);
}

.btn-primary:hover,
.btn-secondary:hover,
.nav-btn:hover {
  transform: translateY(-1px);
}

.actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.empty {
  padding: 26px;
}

.hidden {
  display: none;
}

@keyframes pulse {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.03);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 920px) {
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .album-card {
    grid-template-columns: 1fr;
  }

  .cover-wrap {
    max-width: 360px;
  }
}