:root {
  --bg: #0e0f12;
  --bg-elev: #1a1c22;
  --bg-elev-2: #23262e;
  --fg: #e6e8ee;
  --fg-muted: #8d94a3;
  --accent: #c10d3a;
  --accent-2: #ff3b5c;
  --border: #2a2e38;
  --error: #ff5a5a;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: radial-gradient(1200px 600px at 50% -10%, #2a0d1a 0%, var(--bg) 50%);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB',
               'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  min-height: 100vh;
}

a { color: inherit; }

/* ---------- topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 16px;
  padding: 12px 20px;
  background: rgba(14,15,18,0.85); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand {
  font-size: 16px; font-weight: 600; text-decoration: none;
  background: linear-gradient(120deg, #fff, #ff6b85);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  flex-shrink: 0;
}
.player-bar {
  flex: 1; display: flex; gap: 8px;
  background: var(--bg-elev);
  padding: 6px;
  border-radius: 10px;
  border: 1px solid var(--border);
}
.player-bar input {
  flex: 1; min-width: 0;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 8px 12px; font-size: 13px;
  border-radius: 6px; outline: none;
}
.player-bar input:focus { border-color: var(--accent-2); }
.player-bar select {
  background: var(--bg-elev-2); color: var(--fg);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 0 10px; font-size: 12px;
}
.player-bar button {
  background: var(--accent); color: #fff; border: 0;
  padding: 0 18px; border-radius: 6px;
  font-size: 13px; font-weight: 600; cursor: pointer;
}
.player-bar button:hover { background: var(--accent-2); }
.player-bar button:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------- layout ---------- */
.layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 16px;
  padding: 16px 20px;
  min-height: calc(100vh - 64px - 70px);
}

/* ---------- tracklist panel ---------- */
.tracklist-panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  display: flex; flex-direction: column;
  max-height: calc(100vh - 140px);
}
.playlist-header {
  display: flex; gap: 12px; padding: 14px;
  border-bottom: 1px solid var(--border);
}
.pl-cover {
  width: 64px; height: 64px;
  border-radius: 8px; object-fit: cover;
  background: var(--bg-elev-2); flex-shrink: 0;
}
.pl-meta { min-width: 0; }
.pl-meta h2 { margin: 0 0 4px; font-size: 15px; }
.muted { color: var(--fg-muted); font-size: 12px; }
.track-list {
  list-style: none; margin: 0; padding: 4px;
  overflow-y: auto; flex: 1;
}
.track-list::-webkit-scrollbar { width: 6px; }
.track-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
.track-row {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: 6px;
  cursor: pointer; user-select: none;
}
.track-row:hover { background: var(--bg-elev-2); }
.track-row.active { background: rgba(193, 13, 58, 0.25); }
.track-row.playing { background: rgba(255, 59, 92, 0.18); }
.track-row .ti { width: 22px; color: var(--fg-muted); font-size: 11px; text-align: right; flex-shrink: 0; }
.track-row.playing .ti, .track-row.playing .tn { color: var(--accent-2); }
.track-row .tn {
  font-size: 13px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  flex: 1; min-width: 0;
}

/* ---------- player panel ---------- */
.player-panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  display: flex; flex-direction: column;
  gap: 12px;
  max-height: calc(100vh - 140px);
  overflow: hidden;
}
.now-playing {
  display: flex; gap: 12px; align-items: center;
  padding: 8px 4px;
}
.np-cover {
  width: 80px; height: 80px;
  border-radius: 8px; object-fit: cover;
  background: var(--bg-elev-2); flex-shrink: 0;
  box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}
.np-info { min-width: 0; }
.np-name {
  font-size: 16px; font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.np-sub {
  font-size: 13px; color: var(--fg-muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.audio-wrap { border-top: 1px solid var(--border); padding-top: 12px; }
audio { width: 100%; display: block; height: 38px; margin-bottom: 6px; }
.audio-controls {
  display: flex; align-items: center; gap: 10px;
}
.ctrl-btn {
  background: transparent; color: var(--fg);
  border: 1px solid var(--border); border-radius: 8px;
  width: 36px; height: 36px;
  font-size: 14px; cursor: pointer;
}
.ctrl-btn:hover { border-color: var(--accent-2); }
.ctrl-primary {
  background: var(--accent); border-color: var(--accent); color: #fff;
  width: 44px; height: 44px; font-size: 16px;
}
.ctrl-primary:hover { background: var(--accent-2); border-color: var(--accent-2); }
.time { color: var(--fg-muted); font-size: 12px; min-width: 100px; text-align: center; }
.vol {
  margin-left: auto;
  display: flex; align-items: center; gap: 6px;
  color: var(--fg-muted); font-size: 12px;
}
.vol input { width: 100px; }

/* ---------- lyrics ---------- */
.lyrics-wrap {
  flex: 1; min-height: 0;
  background: var(--bg-elev-2);
  border-radius: 10px;
  padding: 24px;
  overflow: hidden;
  position: relative;
  mask-image: linear-gradient(to bottom, transparent 0, #000 12%, #000 88%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 12%, #000 88%, transparent 100%);
}
.lyrics {
  height: 100%; overflow-y: auto;
  text-align: center; line-height: 2; font-size: 14px;
  scroll-behavior: smooth;
  padding: 50% 0;
}
.lyrics::-webkit-scrollbar { display: none; }
.lyric-line {
  padding: 4px 12px;
  color: var(--fg-muted);
  transition: color .25s, font-size .25s, transform .25s, text-shadow .25s;
  white-space: pre-wrap;
}
.lyric-line.active {
  color: var(--accent-2);
  font-size: 17px;
  font-weight: 600;
  text-shadow: 0 0 12px rgba(255, 59, 92, 0.4);
  transform: scale(1.04);
}
.lyrics .hint { padding-top: 40vh; }

/* ---------- error ---------- */
.error {
  position: fixed; top: 80px; left: 50%; transform: translateX(-50%);
  z-index: 20;
  padding: 10px 16px;
  background: rgba(255,90,90,0.15); color: var(--error);
  border: 1px solid rgba(255,90,90,0.3); border-radius: 8px;
  font-size: 14px;
  max-width: 80vw;
}

/* ---------- footer ---------- */
.footer {
  margin-top: 20px; padding: 14px;
  text-align: center; color: var(--fg-muted); font-size: 12px;
  border-top: 1px solid var(--border);
}
.footer .friend-links { margin: 0 0 6px; }
.footer .friend-links a { text-decoration: none; margin: 0 4px; }
.footer .friend-links a:hover { color: var(--accent-2); text-decoration: underline; }
.footer .fl-sep { color: var(--border); }
.footer .copyright { margin: 0; }
.footer .stats { margin-top: 6px; font-size: 11px; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .tracklist-panel { max-height: 360px; }
  .player-panel { max-height: none; }
}

/* 移动端：让两栏堆叠起来后还能用 */
@media (max-width: 640px) {
  body { font-size: 14px; }

  /* topbar：标题换行，输入栏满宽 */
  .topbar {
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 12px;
  }
  .brand { width: 100%; font-size: 14px; }
  .player-bar { width: 100%; padding: 5px; gap: 6px; }
  .player-bar input { padding: 7px 10px; font-size: 13px; }
  .player-bar select { padding: 0 8px; font-size: 12px; }
  .player-bar button { padding: 0 14px; font-size: 12px; }

  /* 两栏垂直堆叠，缩小间距 */
  .layout {
    padding: 10px 12px;
    gap: 10px;
    min-height: 0;
  }

  /* 歌单面板：限制高度，避免抢屏 */
  .tracklist-panel { max-height: 38vh; border-radius: 10px; }
  .playlist-header { padding: 10px 12px; gap: 10px; }
  .pl-cover { width: 56px; height: 56px; }
  .pl-meta h2 { font-size: 14px; }
  .pl-meta p { font-size: 11px; }
  .track-row { padding: 7px 10px; gap: 8px; }
  .track-row .tn { font-size: 12px; }

  /* 播放主面板 */
  .player-panel { padding: 12px; border-radius: 10px; gap: 10px; }
  .now-playing { gap: 10px; padding: 4px 0 8px; }
  .np-cover { width: 64px; height: 64px; }
  .np-name { font-size: 14px; }
  .np-sub { font-size: 12px; }

  .audio-wrap { padding-top: 8px; }
  audio { height: 38px; }

  /* 控制栏：换行，音量自己占满第二行 */
  .audio-controls { flex-wrap: wrap; gap: 6px 8px; justify-content: center; }
  .ctrl-primary { width: 42px; height: 42px; }
  .ctrl-btn { width: 34px; height: 34px; }
  .time { font-size: 11px; min-width: 80px; }
  .vol {
    width: 100%;
    margin-left: 0;
    justify-content: center;
    padding-top: 4px;
    border-top: 1px dashed var(--border);
    font-size: 11px;
  }
  .vol input { width: 60%; max-width: 180px; }

  /* 歌词面板 */
  .lyrics-wrap { padding: 14px; border-radius: 8px; min-height: 220px; }
  .lyrics { font-size: 13px; line-height: 1.95; padding: 45% 0; }
  .lyric-line { padding: 4px 10px; }
  .lyric-line.active { font-size: 15px; }

  /* footer */
  .footer { font-size: 11px; padding: 10px; }
  .error { top: 64px; font-size: 12px; padding: 8px 12px; max-width: 90vw; }
}

@media (max-width: 380px) {
  /* 超窄屏：封面文字再小一号 */
  .np-cover { width: 56px; height: 56px; }
  .pl-cover { width: 48px; height: 48px; }
  .lyrics { font-size: 12px; }
  .lyric-line.active { font-size: 14px; }
}