/* 汽水音乐工具站 —— 护眼浅色主题 */
:root {
  --bg: #f2f5f0;
  --bg-soft: #e9eee4;
  --card: #ffffff;
  --ink: #22312b;
  --ink-2: #52655c;
  --ink-3: #8b9a91;
  --line: #dde5dc;
  --accent: #2f7d5d;
  --accent-2: #429a74;
  --accent-soft: #e4f2ea;
  --warn: #b5731f;
  --warn-soft: #fbf0dc;
  --danger: #b4463c;
  --danger-soft: #fbeae8;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(34,49,43,.05), 0 8px 24px rgba(34,49,43,.06);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 28px 20px 64px; }

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 22px;
}
.logo {
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 18px; letter-spacing: -.5px;
  box-shadow: 0 4px 12px rgba(47,125,93,.25);
  flex: none;
}
.topbar h1 { font-size: 19px; margin: 0; font-weight: 650; letter-spacing: -.2px; }
.topbar p { margin: 0; font-size: 12.5px; color: var(--ink-3); }
.topbar .spacer { flex: 1; }

/* ---------- 卡片 ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 18px;
}
.card h2 {
  font-size: 15px; margin: 0 0 4px; font-weight: 650;
  display: flex; align-items: center; gap: 8px;
}
.card .sub { font-size: 12.5px; color: var(--ink-3); margin: 0 0 16px; }

/* ---------- 拖拽区 ---------- */
.drop {
  border: 1.5px dashed #c3d3c8;
  border-radius: 12px;
  background: #fbfdfb;
  padding: 34px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .18s, background .18s, transform .18s;
}
.drop:hover { border-color: var(--accent-2); background: #f6fbf8; }
.drop.over { border-color: var(--accent); background: var(--accent-soft); transform: scale(.995); }
.drop .big { font-size: 30px; line-height: 1; margin-bottom: 10px; }
.drop .t { font-weight: 600; margin-bottom: 4px; }
.drop .h { font-size: 12.5px; color: var(--ink-3); }
.drop code {
  font-family: var(--mono); font-size: 11.5px;
  background: var(--bg-soft); padding: 2px 6px; border-radius: 5px;
}

/* ---------- 按钮 ---------- */
.btn {
  appearance: none; border: 1px solid var(--line);
  background: #fff; color: var(--ink);
  padding: 8px 15px; border-radius: 9px;
  font-size: 13.5px; font-weight: 550; font-family: inherit;
  cursor: pointer; transition: all .15s;
  display: inline-flex; align-items: center; gap: 6px;
}
.btn:hover:not(:disabled) { border-color: #c4d2c8; background: #fafcf9; }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.primary {
  background: var(--accent); border-color: var(--accent); color: #fff;
  box-shadow: 0 2px 8px rgba(47,125,93,.22);
}
.btn.primary:hover:not(:disabled) { background: #2a7053; border-color: #2a7053; }
.btn.ghost { background: transparent; }
.btn.sm { padding: 5px 10px; font-size: 12.5px; border-radius: 7px; }

/* ---------- 表单 ---------- */
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12.5px; color: var(--ink-2); font-weight: 550; margin-bottom: 6px; }
input[type=text], input[type=search], select, textarea {
  width: 100%; font-family: inherit; font-size: 13.5px; color: var(--ink);
  background: #fff; border: 1px solid var(--line); border-radius: 9px;
  padding: 9px 12px; outline: none; transition: border-color .15s, box-shadow .15s;
}
textarea { font-family: var(--mono); font-size: 12.5px; resize: vertical; min-height: 76px; }
input:focus, select:focus, textarea:focus {
  border-color: var(--accent-2); box-shadow: 0 0 0 3px rgba(66,154,116,.13);
}
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row > * { flex: 1 1 180px; }

/* ---------- 统计 ---------- */
.stats { display: flex; gap: 22px; flex-wrap: wrap; margin: 4px 0 18px; }
.stat .n { font-size: 22px; font-weight: 680; letter-spacing: -.5px; }
.stat .k { font-size: 11.5px; color: var(--ink-3); }

/* ---------- 表格 ---------- */
.table-wrap { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
thead th {
  background: #f7faf6; text-align: left; font-size: 11.5px; font-weight: 600;
  color: var(--ink-3); text-transform: uppercase; letter-spacing: .04em;
  padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap;
}
tbody td { padding: 10px 12px; border-bottom: 1px solid #eef3ec; vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #fbfdfb; }
tbody tr.sel { background: var(--accent-soft); }
td.title { font-weight: 550; }
td.artist, td.dim { color: var(--ink-2); font-size: 12.5px; }
td.num { font-variant-numeric: tabular-nums; color: var(--ink-3); font-size: 12px; }

.badge {
  display: inline-block; padding: 1px 7px; border-radius: 5px;
  font-size: 11px; font-weight: 600; letter-spacing: .02em;
  background: var(--bg-soft); color: var(--ink-2);
  margin-right: 4px;
}
.badge.flac { background: var(--accent-soft); color: var(--accent); }
.badge.hi { background: #e8eefb; color: #3b5aa8; }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.err { background: var(--danger-soft); color: var(--danger); }
.badge.ok { background: var(--accent-soft); color: var(--accent); }

/* ---------- 进度 ---------- */
.bar { height: 5px; background: var(--bg-soft); border-radius: 3px; overflow: hidden; min-width: 70px; }
.bar > i {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
  transition: width .16s linear;
}

/* ---------- 日志 ---------- */
.log {
  font-family: var(--mono); font-size: 12px; line-height: 1.75;
  background: #f8faf7; border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px; max-height: 240px; overflow: auto;
  white-space: pre-wrap; word-break: break-all; color: var(--ink-2);
}
.log .ok { color: var(--accent); }
.log .er { color: var(--danger); }
.log .wa { color: var(--warn); }

/* ---------- 提示条 ---------- */
.note {
  font-size: 12.5px; color: var(--ink-2); background: #f7faf6;
  border: 1px solid var(--line); border-left: 3px solid var(--accent-2);
  border-radius: 8px; padding: 10px 13px; margin: 0 0 16px;
}
.note.warn { background: var(--warn-soft); border-color: #f0e0c2; border-left-color: var(--warn); color: #7d5215; }
.note b { color: inherit; }

/* ---------- 结果 ---------- */
.result {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 13px; border: 1px solid var(--line); border-radius: 10px;
  background: #fbfdfb; margin-bottom: 9px;
}
.result .name { font-weight: 550; font-size: 13.5px; }
.result .meta { font-size: 11.5px; color: var(--ink-3); }

/* ---------- 首页卡片 ---------- */
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 900px) { .grid3 { grid-template-columns: 1fr; } }
@media (max-width: 760px) { .grid2 { grid-template-columns: 1fr; } }
.entry {
  display: block; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow);
  color: inherit; transition: transform .18s, box-shadow .18s, border-color .18s;
}
.entry:hover { text-decoration: none; transform: translateY(-2px); border-color: #cfe0d4; box-shadow: 0 10px 28px rgba(34,49,43,.1); }
.entry .ico {
  width: 42px; height: 42px; border-radius: 11px; background: var(--accent-soft);
  display: flex; align-items: center; justify-content: center; font-size: 20px; margin-bottom: 14px;
}
.entry h3 { margin: 0 0 6px; font-size: 16px; font-weight: 650; }
.entry p { margin: 0; font-size: 13px; color: var(--ink-2); }
.entry .go { margin-top: 14px; font-size: 12.5px; color: var(--accent); font-weight: 600; }

/* ---------- 标签页 ---------- */
.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--line); margin-bottom: 18px; }
.tab {
  padding: 9px 14px; font-size: 13.5px; font-weight: 550; color: var(--ink-3);
  cursor: pointer; border: none; background: none; font-family: inherit;
  border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all .15s;
}
.tab:hover { color: var(--ink); }
.tab.on { color: var(--accent); border-bottom-color: var(--accent); }
.pane { display: none; }
.pane.on { display: block; animation: fade .22s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(3px); } to { opacity: 1; transform: none; } }

/* ---------- 弹窗 ---------- */
.mask {
  position: fixed; inset: 0; background: rgba(24,36,30,.42);
  display: flex; align-items: center; justify-content: center;
  padding: 20px; z-index: 50; animation: fade .16s ease;
  backdrop-filter: blur(2px);
}
.mask.hidden { display: none; }
.modal {
  background: var(--card); border-radius: 16px; width: 100%; max-width: 430px;
  box-shadow: 0 18px 50px rgba(20,35,28,.25); overflow: hidden;
  animation: pop .18s ease;
}
@keyframes pop { from { opacity: 0; transform: translateY(10px) scale(.98); } to { opacity: 1; transform: none; } }
.modal-head { padding: 18px 20px 4px; }
.modal-head h3 { margin: 0 0 4px; font-size: 16px; font-weight: 650; }
.modal-head p { margin: 0; font-size: 12.5px; color: var(--ink-3); }
.modal-body { padding: 14px 20px 4px; }
.modal-foot {
  padding: 14px 20px 18px; display: flex; gap: 8px; justify-content: flex-end;
  border-top: 1px solid var(--line); margin-top: 14px;
}

.opt {
  display: flex; gap: 11px; align-items: flex-start;
  border: 1px solid var(--line); border-radius: 11px;
  padding: 11px 13px; margin-bottom: 9px; cursor: pointer;
  transition: border-color .15s, background .15s;
}
.opt:hover { border-color: #c9dbd0; background: #fbfdfb; }
.opt.on { border-color: var(--accent-2); background: var(--accent-soft); }
.opt input { display: none; }
.opt .dot {
  width: 16px; height: 16px; border-radius: 50%; border: 1.5px solid #c4d2c8;
  margin-top: 3px; flex: none; position: relative; transition: all .15s;
}
.opt.on .dot { border-color: var(--accent); }
.opt.on .dot::after {
  content: ''; position: absolute; inset: 3px; border-radius: 50%; background: var(--accent);
}
.opt .t { font-size: 13.5px; font-weight: 550; }
.opt .d { font-size: 11.5px; color: var(--ink-3); margin-top: 2px; line-height: 1.5; }

/* ---------- 首页两个大按钮 ---------- */
.hero { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 780px) { .hero { grid-template-columns: 1fr; } }
.big-card {
  display: block; background: var(--card); border: 1px solid var(--line);
  border-radius: 16px; padding: 26px 24px; box-shadow: var(--shadow);
  color: inherit; transition: transform .18s, box-shadow .18s, border-color .18s;
}
.big-card:hover {
  text-decoration: none; transform: translateY(-3px);
  border-color: #cfe0d4; box-shadow: 0 14px 34px rgba(34,49,43,.11);
}
.big-card .ico {
  width: 46px; height: 46px; border-radius: 13px; background: var(--accent-soft);
  display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 16px;
}
.big-card h3 { margin: 0 0 8px; font-size: 17px; font-weight: 660; letter-spacing: -.2px; }
.flag {
  display: inline-block; font-size: 11px; font-weight: 600;
  padding: 2px 8px; border-radius: 6px; margin-bottom: 10px; letter-spacing: .01em;
}
.flag.no { background: var(--danger-soft); color: var(--danger); }
.flag.yes { background: var(--accent-soft); color: var(--accent); }
.big-card p { margin: 0 0 18px; font-size: 13px; color: var(--ink-2); line-height: 1.7; }
.big-card .cta {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--accent); color: #fff; font-size: 13.5px; font-weight: 600;
  padding: 9px 18px; border-radius: 9px;
}

/* ---------- 提示气泡 ---------- */
.toast {
  position: fixed; left: 50%; bottom: 32px; transform: translateX(-50%);
  background: #22312b; color: #fff; font-size: 13px;
  padding: 10px 18px; border-radius: 10px; z-index: 60;
  box-shadow: 0 8px 24px rgba(0,0,0,.2); animation: fade .18s ease;
}

/* ---------- 其他 ---------- */
.hint { font-size: 12px; color: var(--ink-3); }
.mono { font-family: var(--mono); }
.hidden { display: none !important; }
.foot { text-align: center; font-size: 12px; color: var(--ink-3); margin-top: 34px; }
.kv { font-family: var(--mono); font-size: 11.5px; color: var(--ink-2); word-break: break-all; }