:root {
  color-scheme: dark;
  --bg: #0b0f14;
  --panel: #141a22;
  --panel-2: #1b2230;
  --text: #eef2f8;
  --muted: #8f9bb0;
  --accent: #4da3ff;
  --accent-2: #7bf0c8;
  --danger: #ff6978;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --radius: 22px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(77, 163, 255, 0.14), transparent 28%),
    radial-gradient(circle at top right, rgba(123, 240, 200, 0.10), transparent 26%),
    var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  padding: 18px;
}

.app-shell {
  max-width: 1180px;
  margin: 0 auto;
}

.hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.3rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #05111f;
  box-shadow: var(--shadow);
}

.eyebrow, .label, .subtle, .section-head p {
  margin: 0;
  color: var(--muted);
}

h1, h2, h3, p {
  margin-top: 0;
}

h1 {
  margin-bottom: 4px;
  font-size: clamp(1.7rem, 2.4vw, 2.5rem);
}

.install-button, .pill-button, .icon-button, .play-button, .tab {
  border: 0;
  cursor: pointer;
}

.install-button {
  background: var(--accent);
  color: #06111d;
  padding: 12px 16px;
  border-radius: 14px;
  font-weight: 700;
}

main {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 18px;
}

.player-card, .toolbar, .section {
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.player-card {
  padding: 18px;
  position: sticky;
  top: 18px;
  align-self: start;
}

.cover-wrap {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: 18px;
  background: var(--panel);
  margin-bottom: 16px;
}

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

.track-meta h2 {
  margin-bottom: 6px;
  font-size: 1.5rem;
}

.progress-block {
  margin: 18px 0;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.time-row, .controls, .secondary-controls, .section-head, .toolbar {
  display: flex;
  align-items: center;
}

.time-row, .section-head {
  justify-content: space-between;
}

.controls {
  justify-content: center;
  gap: 14px;
  margin-top: 10px;
}

.icon-button, .play-button {
  border-radius: 50%;
  background: var(--panel-2);
  color: var(--text);
}

.icon-button {
  width: 48px;
  height: 48px;
}

.play-button {
  width: 68px;
  height: 68px;
  font-size: 1.2rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06111d;
  font-weight: 900;
}

.secondary-controls {
  gap: 10px;
  margin-top: 14px;
  justify-content: space-between;
}

.pill-button {
  flex: 1;
  padding: 12px 14px;
  border-radius: 999px;
  background: var(--panel-2);
  color: var(--text);
}

.toolbar {
  flex-direction: column;
  gap: 14px;
  padding: 16px;
}

#searchInput {
  width: 100%;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
  color: var(--text);
  border-radius: 16px;
  padding: 14px 16px;
  font-size: 1rem;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tab {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.03);
  color: var(--text);
}

.tab.active {
  background: var(--accent);
  color: #06111d;
  font-weight: 700;
}

.section {
  padding: 16px;
  margin-top: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
}

.grid-playlists {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 18px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: rgba(77, 163, 255, 0.35);
}

.card-cover {
  aspect-ratio: 1 / 1;
  width: 100%;
  object-fit: cover;
  display: block;
}

.card-body {
  padding: 12px;
}

.card-body h4 {
  margin-bottom: 6px;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--muted);
}

audio {
  position: fixed;
  inset: auto 0 0 0;
  width: 100%;
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 920px) {
  main {
    grid-template-columns: 1fr;
  }

  .player-card {
    position: static;
  }
}