/* UX upgrade: Winamp audio, sticky reader sidebar */

.winamp-shell { display:grid; grid-template-columns:340px 1fr; gap:22px; }
.winamp-cover, .winamp-player { border-radius:28px; padding:24px; }
.winamp-cover img { width:100%; border-radius:22px; box-shadow:0 20px 50px rgba(0,0,0,.18); }
.winamp-display { background:#121826; color:#b6ff9a; border-radius:18px; padding:18px; font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace; box-shadow:inset 0 0 24px rgba(182,255,154,.08); }
.lcd-label { color:#6ee7b7; font-size:12px; letter-spacing:.18em; }
.lcd-title { font-size:24px; margin-top:8px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.lcd-time { margin-top:8px; color:#fef08a; }
.main-audio { width:100%; margin:18px 0; }
.winamp-controls { display:flex; gap:10px; margin-bottom:18px; }
.winamp-controls button { border:0; background:#111827; color:white; border-radius:12px; padding:10px 14px; cursor:pointer; }
.playlist-header { display:grid; grid-template-columns:50px 1fr 90px; padding:10px 12px; color:#6b7280; font-size:12px; text-transform:uppercase; letter-spacing:.14em; }
.winamp-playlist { list-style:none; padding:0; margin:0; max-height:58vh; overflow:auto; border-radius:18px; background:rgba(255,255,255,.72); border:1px solid rgba(17,24,39,.08); }
.winamp-track { width:100%; display:grid; grid-template-columns:50px 1fr 90px; gap:10px; align-items:center; text-align:left; border:0; background:transparent; padding:12px; cursor:pointer; border-bottom:1px solid rgba(17,24,39,.07); }
.winamp-track:hover, .winamp-track.active { background:#111827; color:#b6ff9a; }
.track-title { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.empty-playlist { padding:18px; color:#6b7280; }

.immersive-reader { display:grid; grid-template-columns:280px 1fr; gap:18px; }
.reader-sidebar { position:sticky; top:16px; height:calc(100vh - 32px); border-radius:24px; padding:20px; overflow:auto; }
.reader-sidebar h2 { font-size:20px; line-height:1.25; }
.reader-progress-box { margin:18px 0; }
.progress-bar { height:10px; background:rgba(17,24,39,.12); border-radius:999px; overflow:hidden; margin:8px 0; }
.progress-bar span { display:block; height:100%; width:0; background:#111827; }
.reader-main iframe { width:100%; height:calc(100vh - 32px); border:0; border-radius:22px; background:white; }

@media (max-width:900px) {
  .winamp-shell, .immersive-reader { grid-template-columns:1fr; }
  .reader-sidebar { position:relative; height:auto; }
}