:root {
  color-scheme: dark;
  --bg-1: #09101f;
  --bg-2: #132545;
  --card: rgba(10, 18, 35, 0.78);
  --card-border: rgba(255,255,255,0.1);
  --text: #f5f8ff;
  --muted: #9fb3cf;
  --accent: #7cf4ff;
  --accent-2: #9d86ff;
  --shadow: 0 24px 80px rgba(0,0,0,.38);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, rgba(124,244,255,.18), transparent 30%), linear-gradient(180deg, var(--bg-2), var(--bg-1) 72%);
}
.app-shell { min-height: 100vh; padding: 24px; }
.player-shell { max-width: 1320px; margin: 0 auto; display: grid; grid-template-columns: 360px 1fr; gap: 18px; }
.card {
  background: var(--card); border: 1px solid var(--card-border); border-radius: 26px;
  box-shadow: var(--shadow); backdrop-filter: blur(18px);
}
.sidebar { padding: 22px; display: grid; gap: 18px; align-content: start; }
.eyebrow { margin: 0 0 8px; font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); font-weight: 800; }
h1,h2 { margin: 0; }
.muted { color: var(--muted); line-height: 1.65; }
.upload-box {
  display: grid; gap: 8px; padding: 18px; border-radius: 20px; border: 2px dashed rgba(124,244,255,.34);
  background: rgba(255,255,255,.03); cursor: pointer;
}
.upload-box input { display: none; }
.playlist-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.playlist { display: grid; gap: 10px; max-height: 520px; overflow: auto; padding-right: 4px; }
.track-item {
  display: grid; gap: 4px; padding: 14px 16px; border-radius: 18px; border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.03); cursor: pointer;
}
.track-item.active { border-color: rgba(124,244,255,.46); background: rgba(124,244,255,.1); }
.track-name { font-weight: 700; }
.track-sub { color: var(--muted); font-size: 13px; }
.main-panel { display: grid; gap: 18px; }
.hero { padding: 22px; display: grid; gap: 20px; }
.cover-wrap { display: grid; gap: 18px; }
.cover-art {
  position: relative; min-height: 240px; border-radius: 26px;
  background: linear-gradient(135deg, rgba(124,244,255,.18), rgba(157,134,255,.22));
  overflow: hidden; display: grid; place-items: center;
}
.cover-art::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at center, rgba(255,255,255,.08), transparent 56%);
}
.vinyl {
  width: 150px; height: 150px; border-radius: 50%;
  background: radial-gradient(circle, #0a1428 18%, #161f3d 19%, #0b1120 32%, #161f3d 34%, #0b1120 52%, #1c2a4d 53%, #070b16 100%);
  box-shadow: 0 12px 30px rgba(0,0,0,.35);
}
.cover-art.playing .vinyl { animation: spin 4.2s linear infinite; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
#visualizer {
  width: 100%; display: block; border-radius: 20px; border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.03);
}
.now-playing { display: grid; gap: 8px; }
#trackTitle { font-size: clamp(28px, 5vw, 42px); }
.progress-block { display: grid; gap: 10px; }
.progress-meta { display: flex; justify-content: space-between; color: var(--muted); font-size: 14px; }
input[type="range"] { width: 100%; }
.controls-row, .bottom-controls { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.play-btn, .icon-btn, .ghost-btn, select {
  border: 0; border-radius: 999px; padding: 12px 16px; font: inherit;
}
.play-btn {
  min-width: 92px; font-weight: 800; color: #04111e;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); cursor: pointer;
}
.icon-btn, .ghost-btn, select {
  color: var(--text); background: rgba(255,255,255,.08); cursor: pointer;
}
.volume-control, .speed-control { display: flex; align-items: center; gap: 10px; color: var(--muted); }
.status-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.stat-card { padding: 18px; display: grid; gap: 8px; }
.stat-card span { color: var(--muted); font-size: 14px; }
.stat-card strong { font-size: 18px; }
@media (max-width: 980px) {
  .player-shell { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .app-shell { padding: 12px; }
  .sidebar, .hero { padding: 18px; }
  .status-grid { grid-template-columns: 1fr; }
}