:root {
  --accent: #ff7a45;
  --accent-soft: #ffb38a;
  --accent-deep: #f2551c;
  --bg: #fff7f2;
  --bg-elev: #ffffff;
  --bg-sunken: #fdeee5;
  --text: #3a2b22;
  --text-dim: #9b8478;
  --border: #f3d9c9;
  --shadow: 0 10px 30px rgba(255, 122, 69, 0.12);
  --shadow-strong: 0 16px 40px rgba(255, 122, 69, 0.22);
  --radius: 18px;
}

[data-theme="dark"] {
  --accent: #ff8c5a;
  --accent-soft: #7a4a35;
  --accent-deep: #ff6a30;
  --bg: #1a1411;
  --bg-elev: #251d18;
  --bg-sunken: #2f241d;
  --text: #f6ece4;
  --text-dim: #b39a8b;
  --border: #3a2c23;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  --shadow-strong: 0 16px 40px rgba(0, 0, 0, 0.55);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background 0.3s, color 0.3s;
}

.hidden { display: none !important; }

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { font-size: 26px; }
.brand-name { font-weight: 800; font-size: 20px; letter-spacing: 0.5px; }
.topbar-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.btn {
  border: 1px solid var(--border);
  background: var(--bg-sunken);
  color: var(--text);
  padding: 9px 14px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: transform 0.12s, box-shadow 0.2s, background 0.2s;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #fff;
  border: none;
}
.btn-icon { padding: 9px 11px; }

/* ---------- 布局 ---------- */
.layout {
  flex: 1;
  display: grid;
  grid-template-columns: 320px 1fr 320px;
  gap: 18px;
  padding: 22px;
  align-items: start;
}
.panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.panel-head h2 { font-size: 16px; }
.playlist-tools { display: flex; gap: 8px; }
.chip {
  border: 1px solid var(--border);
  background: var(--bg-sunken);
  color: var(--text-dim);
  width: 34px; height: 34px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 15px;
  transition: all 0.2s;
}
.chip:hover { color: var(--accent); border-color: var(--accent); }
.chip.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ---------- 播放列表 ---------- */
.playlist { list-style: none; max-height: 62vh; overflow-y: auto; display: flex; flex-direction: column; gap: 6px; }
.track {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 12px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.18s, border 0.18s;
}
.track:hover { background: var(--bg-sunken); }
.track.playing { background: var(--bg-sunken); border-color: var(--accent); }
.track.dragging { opacity: 0.4; }
.track.drop-target { border-top: 2px solid var(--accent); }
.track-badge {
  width: 30px; height: 30px;
  border-radius: 8px;
  display: grid; place-items: center;
  font-size: 14px;
  background: linear-gradient(135deg, var(--accent-soft), var(--accent));
  color: #fff;
  flex-shrink: 0;
}
.track-info { flex: 1; min-width: 0; }
.track-title { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-sub { font-size: 12px; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-del {
  border: none; background: transparent; color: var(--text-dim);
  cursor: pointer; font-size: 16px; padding: 4px; border-radius: 8px;
  opacity: 0; transition: opacity 0.2s, color 0.2s;
}
.track:hover .track-del { opacity: 1; }
.track-del:hover { color: var(--accent-deep); }
.drag-handle {
  flex-shrink: 0;
  width: 16px;
  color: var(--text-dim);
  cursor: grab;
  font-size: 16px;
  text-align: center;
  user-select: none;
  touch-action: none;
}
.drag-handle:active { cursor: grabbing; color: var(--accent); }
.drop-indicator {
  height: 0;
  border-top: 2px dashed var(--accent);
  margin: -3px 8px;
  list-style: none;
}
.playing .eq { display: inline-flex; }
.eq { display: none; gap: 2px; align-items: flex-end; height: 14px; }
.eq span { width: 3px; background: var(--accent); border-radius: 2px; animation: eq 0.9s ease-in-out infinite; }
.eq span:nth-child(2) { animation-delay: 0.25s; }
.eq span:nth-child(3) { animation-delay: 0.5s; }
@keyframes eq { 0%,100% { height: 4px; } 50% { height: 14px; } }
.empty-hint { color: var(--text-dim); font-size: 13px; text-align: center; padding: 30px 10px; line-height: 1.7; }

/* ---------- 正在播放 ---------- */
.now-panel { display: flex; flex-direction: column; align-items: center; text-align: center; }
.cover-wrap {
  position: relative;
  width: 260px; height: 260px;
  margin: 6px auto 18px;
}
.visualizer {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border-radius: 24px;
}
.cover {
  position: absolute; inset: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-soft), var(--accent-deep));
  display: grid; place-items: center;
  box-shadow: var(--shadow-strong);
  transition: transform 0.4s;
}
.cover.spin { animation: spin 8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.cover-note { font-size: 54px; filter: drop-shadow(0 2px 6px rgba(0,0,0,0.2)); }

.now-meta { margin-bottom: 14px; }
.track-title { font-size: 22px; font-weight: 800; }
.track-artist { color: var(--text-dim); font-size: 14px; margin-top: 4px; }

.progress-row { display: flex; align-items: center; gap: 10px; width: 100%; margin: 8px 0 18px; }
.time { font-size: 12px; color: var(--text-dim); width: 42px; }
.time:last-child { text-align: right; }
.seek, .vol-slider {
  -webkit-appearance: none; appearance: none;
  height: 6px; border-radius: 3px;
  background: var(--bg-sunken);
  cursor: pointer; flex: 1;
}
.seek::-webkit-slider-thumb, .vol-slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent); border: 3px solid #fff;
  box-shadow: 0 2px 6px rgba(255,122,69,0.5);
}
.seek::-moz-range-thumb, .vol-slider::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent); border: 3px solid #fff;
}

.controls { display: flex; align-items: center; gap: 14px; }
.ctrl {
  border: none; background: var(--bg-sunken); color: var(--text);
  width: 46px; height: 46px; border-radius: 50%;
  cursor: pointer; font-size: 18px;
  display: grid; place-items: center;
  transition: transform 0.12s, box-shadow 0.2s;
}
.ctrl:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.ctrl-main {
  width: 62px; height: 62px; font-size: 24px;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #fff;
}
.ctrl-side { font-size: 15px; font-weight: 700; width: 42px; height: 42px; }
.ctrl-side.active { background: var(--accent); color: #fff; }
.volume { display: flex; align-items: center; gap: 8px; }
.vol-icon { font-size: 16px; }
.vol-slider { width: 90px; flex: none; }

/* ---------- 歌词 ---------- */
.lyrics-panel { max-height: 78vh; display: flex; flex-direction: column; }
.lyrics { flex: 1; overflow-y: auto; max-height: 64vh; text-align: center; line-height: 2.4; padding: 6px; }
.lyrics p { color: var(--text-dim); font-size: 15px; transition: color 0.2s, transform 0.2s; cursor: pointer; }
.lyrics p:hover { color: var(--text); }
.lyrics p.active { color: var(--accent); font-weight: 700; font-size: 17px; transform: scale(1.04); }
.lyrics-empty { color: var(--text-dim); }

/* ---------- 弹窗 ---------- */
.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.45);
  display: grid; place-items: center;
  z-index: 50;
}
.modal-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: min(440px, 92vw);
  box-shadow: var(--shadow-strong);
  display: flex; flex-direction: column; gap: 10px;
}
.modal-card h3 { margin-bottom: 6px; }
.modal-card label { font-size: 13px; color: var(--text-dim); margin-top: 4px; }
.modal-card input, .modal-card textarea {
  border: 1px solid var(--border);
  background: var(--bg-sunken);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
  width: 100%;
}
.modal-card textarea { resize: vertical; font-family: ui-monospace, "SF Mono", Menlo, monospace; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 12px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 28px; left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg-elev);
  padding: 12px 20px;
  border-radius: 12px;
  font-size: 14px;
  box-shadow: var(--shadow-strong);
  z-index: 100;
  animation: toast-in 0.25s ease;
}
@keyframes toast-in { from { opacity: 0; transform: translateX(-50%) translateY(10px); } }

/* ---------- 歌单 tabs ---------- */
.list-bar { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.list-tabs { display: flex; gap: 6px; overflow-x: auto; flex: 1; padding-bottom: 2px; }
.list-tab {
  border: 1px solid var(--border);
  background: var(--bg-sunken);
  color: var(--text-dim);
  padding: 6px 10px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  display: inline-flex; align-items: center; gap: 5px;
  transition: all 0.2s;
}
.list-tab.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.list-tab-count { font-size: 11px; opacity: 0.85; background: rgba(0,0,0,0.08); border-radius: 8px; padding: 0 6px; }
.list-tab.active .list-tab-count { background: rgba(255,255,255,0.25); }
.tab-del { margin-left: 2px; font-size: 11px; opacity: 0.7; }
.tab-del:hover { opacity: 1; color: var(--accent-deep); }

/* ---------- 搜索 ---------- */
.search-wrap { margin-bottom: 12px; }
.search {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--bg-sunken);
  color: var(--text);
  border-radius: 12px;
  padding: 9px 12px;
  font-size: 14px;
  font-family: inherit;
}
.search:focus { outline: none; border-color: var(--accent); }

/* ---------- 曲目操作按钮 ---------- */
.track-fav {
  border: none; background: transparent; color: var(--text-dim);
  cursor: pointer; font-size: 16px; padding: 4px; border-radius: 8px;
  opacity: 0.5; transition: opacity 0.2s, color 0.2s; flex-shrink: 0;
}
.track-fav.on { opacity: 1; color: var(--accent-deep); }
.track-fav:hover { opacity: 1; }
.track-menu {
  border: none; background: transparent; color: var(--text-dim);
  cursor: pointer; font-size: 18px; padding: 4px 6px; border-radius: 8px;
  opacity: 0; transition: opacity 0.2s, color 0.2s; flex-shrink: 0;
}
.track:hover .track-menu { opacity: 1; }
.track-menu:hover { color: var(--accent); }

/* ---------- 加入歌单菜单 ---------- */
.add-menu {
  position: fixed; z-index: 200;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-strong);
  padding: 6px;
  display: flex; flex-direction: column; gap: 2px;
  min-width: 170px;
}
.add-menu-item {
  border: none; background: transparent; color: var(--text);
  text-align: left; cursor: pointer;
  padding: 9px 12px; border-radius: 8px; font-size: 14px; font-family: inherit;
}
.add-menu-item:hover { background: var(--bg-sunken); color: var(--accent-deep); }

/* ---------- 侧栏 tabs ---------- */
.side-panel { display: flex; flex-direction: column; }
.panel-tabs { display: flex; gap: 8px; margin-bottom: 12px; }
.panel-tab {
  border: 1px solid var(--border); background: var(--bg-sunken);
  color: var(--text-dim); padding: 7px 14px; border-radius: 10px;
  cursor: pointer; font-size: 14px; font-weight: 600; transition: all 0.2s;
}
.panel-tab.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.side-view { display: flex; flex-direction: column; flex: 1; min-height: 0; }
.side-panel { max-height: 78vh; }
.queue { list-style: none; overflow-y: auto; max-height: 64vh; display: flex; flex-direction: column; gap: 6px; }
.q-track {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: 12px; cursor: pointer;
  border: 1px solid transparent; transition: background 0.18s, border 0.18s;
}
.q-track:hover { background: var(--bg-sunken); }
.q-track.playing { background: var(--bg-sunken); border-color: var(--accent); }
.q-track.dragging { opacity: 0.4; }

/* ---------- 歌词 / 队列切换时隐藏 ---------- */
.side-view.hidden { display: none; }

/* ---------- EQ ---------- */
.eq-slider {
  -webkit-appearance: none; appearance: none;
  height: 6px; border-radius: 3px; background: var(--bg-sunken);
  cursor: pointer; width: 100%; margin: 4px 0 6px;
}
.eq-slider::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 16px; height: 16px; border-radius: 50%; background: var(--accent); border: 3px solid #fff; box-shadow: 0 2px 6px rgba(255,122,69,0.5); }
.eq-slider::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: var(--accent); border: 3px solid #fff; }
.eq-val { color: var(--accent-deep); font-weight: 700; }
.modal-card label { display: flex; justify-content: space-between; align-items: center; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .playlist { max-height: none; }
  .side-panel { max-height: none; }
  .lyrics { max-height: 40vh; }
  .queue { max-height: 40vh; }
  .add-menu { left: 50% !important; transform: translateX(-50%); }
}