/* 音乐播控 · 深色专业主题 */
:root {
  --bg: #0e1116;
  --panel: #161b24;
  --panel-2: #1c2230;
  --border: #2a3142;
  --text: #e7eaf0;
  --muted: #8a93a6;
  --accent: #4f86ff;
  --accent-2: #7aa6ff;
  --accent-soft: rgba(79, 134, 255, .16);
  --danger: #ef5a5a;
  --ok: #34d399;
  --warn: #f5b942;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, .35);
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(79, 134, 255, .10), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(52, 211, 153, .06), transparent 60%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { margin: 0; font-weight: 600; }

/* 顶栏 */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo {
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; font-size: 22px; color: #fff;
  box-shadow: 0 6px 16px rgba(79, 134, 255, .45);
}
.topbar h1 { font-size: 18px; letter-spacing: .5px; }
.topbar .sub { margin: 2px 0 0; color: var(--muted); font-size: 12px; }
.top-actions { display: flex; gap: 8px; }

/* 卡片通用 */
.card {
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* 正在播放 */
.nowplaying {
  margin: 16px 22px 0; padding: 16px 18px;
  display: flex; flex-direction: column; gap: 12px;
}
.np-row1 { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.np-row3 { display: flex; align-items: center; justify-content: space-between; gap: 14px 24px; flex-wrap: wrap; }
.np-title { font-size: 17px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 60vw; }
.np-time { color: var(--muted); font-family: var(--mono); font-size: 13px; margin-top: 4px; }
.np-seek { width: 100%; }
.transport, .aux { display: flex; align-items: center; gap: 8px; }
.aux { gap: 14px; }
.vol-wrap { display: flex; align-items: center; gap: 6px; }
.vol-val { font-family: var(--mono); font-size: 12px; color: var(--muted); min-width: 36px; display: inline-block; }

/* pro 控件：渐变 + 广播 */
.pro { display: flex; align-items: center; gap: 10px 14px; flex-wrap: wrap; color: var(--muted); font-size: 13px; }
.pro .vsep { width: 1px; height: 22px; background: var(--border); margin: 0 4px; }
.chk { display: inline-flex; align-items: center; gap: 5px; cursor: pointer; color: var(--text); user-select: none; }
.chk input { width: 15px; height: 15px; accent-color: var(--accent); cursor: pointer; }
.bc {
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  border-radius: 10px; padding: 7px 12px; font-size: 13px; display: inline-flex; align-items: center; gap: 5px;
  transition: background .15s, border-color .15s, color .15s;
}
.bc:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent-2); }
.bc.on { background: var(--warn); border-color: var(--warn); color: #1a1206; font-weight: 600; }
.duck { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); }
.duck input[type="range"] { width: 90px; }
#duckVal { font-family: var(--mono); color: var(--text); min-width: 34px; display: inline-block; }

/* 按钮 */
button {
  font-family: inherit; cursor: pointer; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--text);
  border-radius: 10px; padding: 8px 12px; font-size: 14px;
  transition: background .15s, border-color .15s, transform .05s, color .15s;
}
button:hover { background: #232a3a; }
button:active { transform: translateY(1px); }
button:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 2px; }
button.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent; color: #fff; font-weight: 600;
}
button.primary:hover { filter: brightness(1.07); }
button.primary:disabled { opacity: .45; cursor: not-allowed; filter: none; }
button.ghost { background: transparent; }
button.ghost:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent-2); }
button.danger-ghost { background: transparent; color: var(--danger); border-color: rgba(239,90,90,.4); }
button.danger-ghost:hover { background: rgba(239,90,90,.14); }
button.small { padding: 5px 8px; font-size: 13px; }
.ctrl { width: 42px; height: 42px; padding: 0; font-size: 16px; display: grid; place-items: center; }
.ctrl.small { width: 34px; height: 34px; font-size: 15px; }
.ctrl.primary { width: 48px; height: 48px; font-size: 18px; }

/* range 美化 */
input[type="range"] {
  -webkit-appearance: none; appearance: none; height: 6px; border-radius: 6px;
  background: var(--border); outline: none; cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent-2); border: 2px solid #fff; box-shadow: 0 2px 6px rgba(0,0,0,.4);
}
input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%; background: var(--accent-2);
  border: 2px solid #fff; box-shadow: 0 2px 6px rgba(0,0,0,.4);
}
.seek { width: 100%; height: 8px;
  background: linear-gradient(to right, #ffffff var(--seek-fill, 0%), var(--border) var(--seek-fill, 0%));
}
.vol { width: 96px; }
select.rate {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 7px 8px; font-size: 13px; cursor: pointer;
}

/* 模式按钮 */
.mode {
  width: 38px; height: 34px; padding: 0; font-size: 15px; border-radius: 8px;
  color: var(--muted);
}
.mode:hover { color: var(--accent-2); border-color: var(--accent); }
.mode.active { background: var(--accent-soft); color: var(--accent-2); border-color: var(--accent); }

/* 布局 */
.layout {
  display: grid; grid-template-columns: minmax(280px, 360px) 1fr;
  gap: 16px; margin: 16px 22px; align-items: start;
}
@media (max-width: 860px) { .layout { grid-template-columns: 1fr; } }

/* 上传区 */
.upload { padding: 14px; }
.dropzone {
  border: 2px dashed var(--border); border-radius: 12px; padding: 26px 12px;
  text-align: center; transition: border-color .15s, background .15s;
  background: rgba(255,255,255,.01);
}
.dropzone.drag { border-color: var(--accent); background: var(--accent-soft); }
.dz-icon { font-size: 30px; color: var(--accent-2); }
.dz-title { margin: 8px 0 2px; font-weight: 600; }
.dz-sub { margin: 0; color: var(--muted); font-size: 12px; }
.upload-btns { display: flex; align-items: center; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.upload-btns .spacer { flex: 1; }

/* 曲单 */
.playlist { padding: 14px 16px; }
.pl-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.pl-head h2 { font-size: 16px; }
.count { color: var(--muted); font-size: 13px; }
.pl-scroll { max-height: 60vh; overflow: auto; }

/* 表格 */
.tracks { width: 100%; border-collapse: collapse; font-size: 14px; }
.tracks th, .tracks td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); }
.tracks th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .4px; position: sticky; top: 0; background: var(--panel); }
.tracks tr { transition: background .12s; }
.tracks tbody tr:hover { background: rgba(79,134,255,.06); }
.tracks tbody tr.active { background: var(--accent-soft); }
.tracks tbody tr.active td:first-child { box-shadow: inset 3px 0 0 var(--accent); }
.tracks tbody tr.played { color: var(--played-color, var(--warn)); opacity: .9; }
.tracks tbody tr.played .c-dur { color: var(--played-color, var(--warn)); opacity: .75; }
.tracks tbody tr.unplayed { color: var(--unplayed-color, var(--text)); }
.tracks tr.missing td { color: var(--danger); opacity: .85; }
.c-idx { width: 42px; color: var(--muted); font-family: var(--mono); }
.c-dur { width: 80px; color: var(--muted); font-family: var(--mono); white-space: nowrap; }
.c-act { width: 96px; white-space: nowrap; text-align: right; }
.c-name { min-width: 120px; }
.c-name .fname { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 56vw; display: inline-block; vertical-align: bottom; }
.c-name .badge { font-size: 11px; color: var(--warn); margin-left: 6px; }

.row-act { display: inline-flex; gap: 4px; }
.row-act button {
  padding: 4px 7px; font-size: 13px; border-radius: 7px; min-width: 28px;
}
.row-act .mode-btn {
  color: var(--muted); font-size: 12px; min-width: 30px;
  background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.08);
}
.row-act .mode-btn:hover { color: var(--accent-2); border-color: var(--accent); }
.row-act .mode-btn.on {
  color: var(--accent-2); border-color: var(--accent);
  background: var(--accent-soft);
}
.row-act .note-btn {
  color: var(--muted); font-size: 12px; min-width: 28px;
  background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.08);
}
.row-act .note-btn:hover { color: #69d0ff; border-color: #69d0ff; }
.row-act .note-btn.on { color: #69d0ff; border-color: #69d0ff; background: rgba(105,208,255,.1); }
.row-act .del:hover { color: var(--danger); border-color: var(--danger); }

/* 曲目备注显示 */
.c-name { display: flex; flex-direction: column; gap: 2px; }
.c-name .fname { font-weight: 500; line-height: 1.3; }
.c-name .tnote {
  font-size: 11px; color: #69d0ff; line-height: 1.3;
  opacity: .9; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  max-width: 100%;
}
.grip { cursor: grab; color: var(--muted); user-select: none; }
.grip:active { cursor: grabbing; }
.dragging { opacity: .4; }
.dragover td { box-shadow: inset 0 2px 0 var(--accent); }

/* 渠道（多曲单）标签栏 */
.ch-bar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 6px; }
.ch-tabs { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.ch-tab {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 4px 4px 10px;
  border: 1px solid var(--border); border-radius: 999px; background: var(--panel-2);
  font-size: 13px; transition: border-color .15s, background .15s;
}
.ch-tab.active { border-color: var(--accent); background: var(--accent-soft); }
.ch-sel { display: inline-flex; align-items: center; gap: 8px; background: transparent; border: none; color: var(--text); padding: 2px 0; font-size: 13px; cursor: pointer; }
.ch-tab.active .ch-sel { color: var(--accent-2); font-weight: 600; }
.ch-name { max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ch-count { color: var(--muted); font-family: var(--mono); font-size: 12px; background: rgba(255,255,255,.05); padding: 1px 7px; border-radius: 999px; }
.ch-tab.active .ch-count { background: rgba(79,134,255,.18); color: var(--accent-2); }
.ch-edit, .ch-del { background: transparent; border: none; color: var(--muted); padding: 2px 5px; font-size: 12px; border-radius: 6px; cursor: pointer; }
.ch-edit:hover { color: var(--accent-2); }
.ch-del:hover { color: var(--danger); }
.ch-note { margin: 0 0 10px; color: var(--muted); font-size: 12px; }

/* 空状态 */
.empty { text-align: center; color: var(--muted); padding: 40px 12px; }
.empty-icon { font-size: 34px; margin-bottom: 8px; }

/* 弹窗 */
.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.6); backdrop-filter: blur(4px);
  display: grid; place-items: center; z-index: 50; padding: 18px;
}
.modal[hidden] { display: none; }
.modal-card {
  width: min(640px, 96vw); max-height: 88vh; display: flex; flex-direction: column;
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid var(--border); }
.modal-body { padding: 16px; overflow: auto; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--border); }
.modal-tip { color: var(--muted); font-size: 13px; margin: 0 0 12px; }
.modal-btns { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.import-list-wrap { max-height: 46vh; overflow: auto; border: 1px solid var(--border); border-radius: 10px; }
.tracks.import th, .tracks.import td { font-size: 13px; padding: 8px 10px; }
.st-ok { color: var(--ok); }
.st-miss { color: var(--danger); }
.st-wait { color: var(--muted); }
.help ul { margin: 0; padding-left: 18px; line-height: 1.9; font-size: 14px; }
.help b { color: var(--accent-2); }

/* 设置弹窗 */
.setting-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--border); gap: 12px; flex-wrap: wrap; }
.setting-row:last-of-type { border-bottom: none; }
.setting-label { font-size: 14px; color: var(--text); }
.setting-val { display: flex; align-items: center; gap: 8px; }
.setting-val input[type="color"] {
  width: 38px; height: 30px; padding: 0; border: 1px solid var(--border);
  border-radius: 6px; background: var(--panel-2); cursor: pointer;
}
.setting-tip { color: var(--muted); font-size: 12px; margin: 12px 0 0; }

/* 开关按钮 */
.switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch span {
  position: absolute; cursor: pointer; inset: 0;
  background: var(--border); border-radius: 24px; transition: .2s;
}
.switch span::before {
  position: absolute; content: ""; height: 18px; width: 18px;
  left: 3px; top: 3px; background: #fff; border-radius: 50%; transition: .2s;
}
.switch input:checked + span { background: var(--accent); }
.switch input:checked + span::before { transform: translateX(20px); }

/* 快捷键列表 */
.shortcut-list {
  margin-top: 4px; padding: 12px 14px;
  background: rgba(255,255,255,.03); border: 1px solid var(--border);
  border-radius: 10px;
}
.shortcut-list .sc-title {
  font-size: 13px; font-weight: 600; margin-bottom: 8px; color: var(--accent-2);
}
.shortcut-list .sc-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 4px 0; font-size: 13px;
}
.shortcut-list kbd {
  display: inline-block; min-width: 28px; text-align: center;
  padding: 2px 8px; border-radius: 5px;
  background: var(--panel-2); border: 1px solid var(--border);
  font-family: monospace; font-size: 12px; color: var(--text);
}
.shortcut-list .sc-tip { color: var(--muted); font-size: 12px; margin: 8px 0 0; }

/* Toast */
.toast {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%);
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 10px 16px; border-radius: 10px; box-shadow: var(--shadow); z-index: 60;
  font-size: 14px; max-width: 80vw; opacity: 0; transition: opacity .2s, transform .2s;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(-4px); }
.toast.err { border-color: var(--danger); }
.toast.ok { border-color: var(--ok); }

/* 页脚 */
.foot { text-align: center; color: var(--muted); font-size: 12px; padding: 20px 16px 28px; }
.foot-links { margin-bottom: 4px; }
.foot-links a { color: var(--accent-2); text-decoration: none; }
.foot-links a:hover { text-decoration: underline; }
.foot-links .dot { margin: 0 8px; opacity: .6; }
.foot-copy { opacity: .85; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #2a3142; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #353d52; }
::-webkit-scrollbar-track { background: transparent; }