/* ============================================================
   视频下载平台 · 样式（无 CDN 依赖，零外部请求）
   ============================================================ */

:root {
  --bg: #f6f6fa;
  --surface: #ffffff;
  --surface-2: #f3f3f8;
  --surface-3: #ececf3;
  --text: #18181b;
  --text-2: #52525b;
  --text-3: #8b8b96;
  --border: #e5e5ec;
  --line: #e5e5ec;
  --line-strong: #c9c9d6;
  --ok: #10b981;
  --brand: #7c3aed;
  --brand-2: #6d28d9;
  --brand-soft: #f2ecff;
  --danger: #ef4444;
  --danger-soft: #fdeaea;
  --success: #10b981;
  --success-soft: #e6f8f1;
  --warn: #f59e0b;
  --warn-soft: #fdf3e2;
  --shadow: 0 1px 2px rgba(16, 16, 32, .04), 0 8px 24px rgba(16, 16, 32, .05);
  --lift: 0 4px 12px rgba(16, 16, 32, .08);
  --radius: 16px;
  --radius-sm: 10px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0c0c11;
    --surface: #15151d;
    --surface-2: #1d1d27;
    --surface-3: #262632;
    --text: #f2f2f5;
    --text-2: #a8a8b3;
    --text-3: #76768a;
    --border: #292933;
    --line: #292933;
    --line-strong: #3a3a48;
    --ok: #34d399;
    --brand: #a78bfa;
    --brand-2: #c4b5fd;
    --brand-soft: #241d3d;
    --danger: #f87171;
    --danger-soft: #3a1c1c;
    --success: #34d399;
    --success-soft: #12332a;
    --warn: #fbbf24;
    --warn-soft: #3a2c10;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
    --lift: 0 4px 14px rgba(0, 0, 0, .35);
  }
}

:root[data-theme="dark"] {
  --bg: #0c0c11;
  --surface: #15151d;
  --surface-2: #1d1d27;
  --surface-3: #262632;
  --text: #f2f2f5;
  --text-2: #a8a8b3;
  --text-3: #76768a;
  --border: #292933;
  --line: #292933;
  --line-strong: #3a3a48;
  --ok: #34d399;
  --brand: #a78bfa;
  --brand-2: #c4b5fd;
  --brand-soft: #241d3d;
  --danger: #f87171;
  --danger-soft: #3a1c1c;
  --success: #34d399;
  --success-soft: #12332a;
  --warn: #fbbf24;
  --warn-soft: #3a2c10;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  --lift: 0 4px 14px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  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(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--surface-3); border-radius: 10px; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------------- 布局 ---------------- */
.app { display: flex; min-height: 100vh; }

.sidebar {
  counter-reset: navnum;
  width: 232px;
  flex: 0 0 232px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.brand {
  display: flex; align-items: center; gap: 10px;
  padding: 6px 10px 18px;
  font-weight: 700; font-size: 17px;
}
.brand-logo {
  width: 34px; height: 34px; border-radius: 11px;
  background: linear-gradient(135deg, var(--brand), #a855f7);
  display: grid; place-items: center; color: #fff; flex: 0 0 34px;
}
.brand-logo svg { width: 19px; height: 19px; }

.nav-item {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 12px; border-radius: var(--radius-sm);
  color: var(--text-2); cursor: pointer; border: 0; background: none;
  font-size: 14.5px; text-align: left; width: 100%;
  transition: background .15s, color .15s;
}
/* 数字角标：对应快捷键 1–9。display:none 的菜单不会让计数器递增，
   所以管理员隐藏项不会占用序号 */
.nav-item { counter-increment: navnum; }
.nav-item > span:first-of-type::after {
  content: counter(navnum);
  margin-left: auto;
  padding-left: 6px;
  font-size: 10.5px;
  font-variant-numeric: tabular-nums;
  color: var(--text-3);
  opacity: .6;
}
.nav-item:hover { background: var(--surface-2); color: var(--text); }
.nav-item.active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.nav-item .ico { width: 18px; height: 18px; flex: 0 0 18px; }
.nav-item .badge {
  margin-left: auto; background: var(--brand); color: #fff;
  font-size: 11px; padding: 1px 7px; border-radius: 20px; font-weight: 600;
}

.sidebar-foot { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--border); }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  height: 60px; padding: 0 24px;
  display: flex; align-items: center; gap: 12px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 30;
}
.topbar h1 { font-size: 17px; margin: 0; font-weight: 650; }
.topbar .spacer { flex: 1; }

.content { padding: 24px; max-width: 1180px; width: 100%; }

/* ---------------- 组件 ---------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}
.card > h2 { margin: 0 0 4px; font-size: 16px; font-weight: 650; }
.card > .hint { margin: 0 0 16px; color: var(--text-3); font-size: 13px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text); font-size: 14px; font-weight: 550; cursor: pointer;
  transition: filter .15s, background .15s, transform .1s;
}
.btn:hover { background: var(--surface-2); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.primary:hover { filter: brightness(1.08); background: var(--brand); }
.btn.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 35%, transparent); }
.btn.danger:hover { background: var(--danger-soft); }
.btn.sm { padding: 5px 11px; font-size: 13px; border-radius: 8px; }
.btn.block { width: 100%; }

input[type=text], input[type=password], input[type=number], input[type=url], select, textarea {
  width: 100%; padding: 10px 13px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface-2); color: var(--text);
  font-size: 14.5px; font-family: inherit;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--brand);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 16%, transparent);
  background: var(--surface);
}
textarea { resize: vertical; min-height: 120px; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 13.5px; }
label.fld { display: block; margin-bottom: 13px; }
label.fld > span { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 5px; font-weight: 550; }
label.fld .tip { font-size: 12px; color: var(--text-3); margin-top: 5px; font-weight: 400; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.row.end { justify-content: flex-end; }

.tag {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 9px; border-radius: 20px; font-size: 12px; font-weight: 600;
  background: var(--surface-2); color: var(--text-2);
}
.tag.ok { background: var(--success-soft); color: var(--success); }
.tag.err { background: var(--danger-soft); color: var(--danger); }
.tag.warn { background: var(--warn-soft); color: var(--warn); }
.tag.brand { background: var(--brand-soft); color: var(--brand); }

.muted { color: var(--text-3); }
.small { font-size: 13px; }

/* ---------------- 输入区 ---------------- */
.url-box {
  display: flex; gap: 10px; align-items: stretch;
  background: var(--surface-2);
  border: 1.5px solid var(--border); border-radius: 14px;
  padding: 6px; transition: border-color .15s, box-shadow .15s;
}
.url-box:focus-within { border-color: var(--brand); box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand) 12%, transparent); background: var(--surface); }
.url-box input {
  flex: 1; border: 0; background: transparent; padding: 10px 12px; font-size: 15px;
}
.url-box input:focus { box-shadow: none; background: transparent; }
.url-box .btn { align-self: center; }

.detect {
  margin-top: 10px; display: flex; align-items: center; gap: 9px;
  font-size: 13.5px; color: var(--text-2); min-height: 26px;
}
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--text-3); flex: 0 0 9px; }

/* ---------------- 平台网格 ---------------- */
.plat-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px;
}
.plat-card {
  background: var(--surface-2); border: 1px solid transparent;
  border-radius: 15px; padding: 15px 8px 12px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  cursor: pointer; text-align: center;
  transition: transform .15s, background .15s, box-shadow .15s, border-color .15s;
}
.plat-card:hover { transform: translateY(-2px); background: var(--brand-soft); box-shadow: var(--lift); border-color: color-mix(in srgb, var(--brand) 25%, transparent); }
.plat-logo {
  width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center; color: #fff;
  font-weight: 700; font-size: 17px; flex: 0 0 40px;
}
.plat-name { font-size: 12.5px; color: var(--text-2); line-height: 1.35; word-break: break-all; }

/* ---------------- 任务列表 ---------------- */
.task-list { display: flex; flex-direction: column; gap: 10px; }
.task {
  display: flex; gap: 13px; align-items: center;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 12px 14px;
  transition: box-shadow .15s;
}
.task:hover { box-shadow: var(--lift); }
.task .thumb {
  width: 88px; height: 52px; border-radius: 9px; object-fit: cover;
  background: var(--surface-2); flex: 0 0 88px; display: grid; place-items: center;
  color: var(--text-3); font-size: 20px; overflow: hidden;
}
.task .meta { flex: 1; min-width: 0; }
.task .title {
  font-size: 14.5px; font-weight: 550; margin-bottom: 3px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.task .sub { font-size: 12.5px; color: var(--text-3); display: flex; gap: 10px; flex-wrap: wrap; }
.task .ops { display: flex; gap: 6px; flex-shrink: 0; }

.bar { height: 6px; border-radius: 6px; background: var(--surface-3); overflow: hidden; margin-top: 7px; }
.bar > i { display: block; height: 100%; background: var(--brand); border-radius: 6px; transition: width .4s; }
/* 状态色两种写法都支持：写在 .bar 上（.bar.ok > i）或写在 i 上（.bar > i.ok） */
.bar.ok > i,   .bar > i.ok   { background: var(--success); }
.bar.err > i,  .bar > i.err  { background: var(--danger); }
.bar.warn > i, .bar > i.warn { background: var(--warn); }

/* ---------------- 抽屉 ---------------- */
.mask {
  position: fixed; inset: 0; background: rgba(10, 10, 20, .45);
  backdrop-filter: blur(2px); opacity: 0; pointer-events: none;
  transition: opacity .2s; z-index: 60;
}
.mask.open { opacity: 1; pointer-events: auto; }

.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: 468px; max-width: 100vw;
  background: var(--surface); border-left: 1px solid var(--border);
  transform: translateX(100%); transition: transform .26s cubic-bezier(.22,.61,.36,1);
  z-index: 61; display: flex; flex-direction: column; box-shadow: -12px 0 40px rgba(0,0,0,.12);
}
.drawer.open { transform: translateX(0); }
.drawer-head {
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}
.drawer-body { flex: 1; overflow-y: auto; padding: 18px 20px; }
.drawer-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; gap: 10px; }

.fmt-list { display: flex; flex-direction: column; gap: 8px; }
.fmt {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 13px; border: 1px solid var(--border); border-radius: 11px;
  cursor: pointer; transition: background .15s, border-color .15s;
}
.fmt:hover { background: var(--surface-2); }
.fmt.sel { border-color: var(--brand); background: var(--brand-soft); }
.fmt .n { font-weight: 650; font-size: 14px; }
.fmt .d { font-size: 12.5px; color: var(--text-3); margin-left: auto; text-align: right; }

/* ---------------- 表格 ---------------- */
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
table.tbl th, table.tbl td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; }
table.tbl th { color: var(--text-3); font-weight: 550; font-size: 12.5px; text-transform: uppercase; letter-spacing: .03em; }
table.tbl tbody tr:hover { background: var(--surface-2); }
table.tbl td.num { font-variant-numeric: tabular-nums; }

/* ---------------- Toast ---------------- */
.toasts { position: fixed; right: 20px; bottom: 20px; z-index: 90; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid var(--brand);
  border-radius: 12px; padding: 11px 16px; box-shadow: var(--lift);
  font-size: 14px; max-width: 340px;
  animation: slideIn .22s ease-out;
}
.toast.ok { border-left-color: var(--success); }
.toast.err { border-left-color: var(--danger); }
@keyframes slideIn { from { transform: translateX(30px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---------------- 登录 ---------------- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card { width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 32px; box-shadow: var(--shadow); }
.login-card h2 { margin: 0 0 6px; font-size: 21px; }
.login-card p { margin: 0 0 22px; color: var(--text-3); font-size: 14px; }

/* ---------------- 空态 ---------------- */
.empty { text-align: center; padding: 46px 20px; color: var(--text-3); }
.empty .ico { font-size: 40px; opacity: .35; margin-bottom: 10px; }

/* ---------------- 终端输出 ---------------- */
.term {
  background: #0d0d14; color: #d4d4d8; border-radius: 12px; padding: 14px 16px;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12.5px;
  line-height: 1.7; max-height: 260px; overflow-y: auto; white-space: pre-wrap; word-break: break-all;
}

/* ---------------- KPI 卡片 ---------------- */
.kpi-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(132px, 1fr)); gap: 12px;
}
.kpi {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 13px; padding: 14px 15px;
}
.kpi-v {
  font-size: 23px; font-weight: 700; line-height: 1.25;
  font-variant-numeric: tabular-nums; word-break: break-all;
}
.kpi-l { font-size: 12.5px; color: var(--text-3); margin-top: 3px; }
.kpi.ok    { background: var(--success-soft); border-color: color-mix(in srgb, var(--success) 28%, transparent); }
.kpi.ok .kpi-v   { color: var(--success); }
.kpi.err   { background: var(--danger-soft);  border-color: color-mix(in srgb, var(--danger) 28%, transparent); }
.kpi.err .kpi-v  { color: var(--danger); }
.kpi.warn  { background: var(--warn-soft);    border-color: color-mix(in srgb, var(--warn) 28%, transparent); }
.kpi.warn .kpi-v { color: var(--warn); }
.kpi.brand { background: var(--brand-soft);   border-color: color-mix(in srgb, var(--brand) 28%, transparent); }
.kpi.brand .kpi-v{ color: var(--brand); }

/* ---------------- 图表（手写 SVG，零依赖） ---------------- */
.donut { flex: 0 0 auto; display: block; }
.donut circle { transition: stroke-dasharray .4s, stroke-dashoffset .4s; }
.bars { display: block; overflow: visible; }
.bars rect { rx: 2; }
.legend-dot, .dot-c {
  width: 9px; height: 9px; border-radius: 3px; flex: 0 0 9px; display: inline-block;
}
.lg-brand, .lg-mute {
  display: inline-block; width: 10px; height: 10px; border-radius: 3px; vertical-align: -1px;
}
.lg-brand { background: var(--brand); }
.lg-mute { background: var(--surface-3); }

/* ---------------- 任务页：多选 + 批量条 ---------------- */
.sel-wrap {
  display: flex; align-items: center; justify-content: center;
  width: 30px; flex: 0 0 30px; margin: 0;
}
.sel-wrap input { cursor: pointer; }

.bulk-bar {
  display: flex; align-items: center; gap: 9px; flex-wrap: wrap;
  background: var(--brand-soft); border: 1px solid color-mix(in srgb, var(--brand) 30%, transparent);
  border-radius: 13px; padding: 10px 14px; margin-bottom: 14px;
}
.bulk-bar .cnt { font-weight: 650; font-size: 14px; color: var(--brand); }
.bulk-bar .spacer { flex: 1; }

/* ---------------- 播放列表选择 ---------------- */
.pl-row {
  cursor: pointer; transition: background .12s;
}
.pl-row:hover { background: var(--surface-2); border-radius: 8px; }
.pl-row input { cursor: pointer; flex: 0 0 auto; }

/* ---------------- 日志/详情 ---------------- */
.logview {
  background: #0d0d14; color: #d4d4d8; border-radius: 11px; padding: 13px 15px;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12.5px;
  line-height: 1.7; max-height: 300px; overflow: auto;
  white-space: pre-wrap; word-break: break-all; margin: 8px 0 0;
}
.logview.err {
  background: var(--danger-soft); color: var(--danger);
}

/* 键值表（详情抽屉） */
table.tbl.kv th, table.tbl.kv td { padding: 7px 10px; }
table.tbl.kv th {
  width: 96px; color: var(--text-3); font-weight: 550;
  text-transform: none; letter-spacing: 0; vertical-align: top; white-space: nowrap;
}
table.tbl.kv td { word-break: break-all; }
table.tbl.kv tbody tr:hover { background: transparent; }

/* ---------------- 快捷键面板 ---------------- */
.mask.kbd-mask { display: grid; place-items: center; padding: 20px; }
.kbd-modal {
  width: 100%; max-width: 520px; max-height: 86vh;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--lift);
  display: flex; flex-direction: column; overflow: hidden;
}
.kbd-head {
  padding: 15px 18px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px; font-size: 15.5px;
}
.kbd-head b { flex: 1; }
.kbd-body { padding: 14px 18px 18px; overflow-y: auto; }
.kbd {
  display: inline-block; padding: 2px 8px; border-radius: 7px;
  background: var(--surface-3); border: 1px solid var(--border);
  border-bottom-width: 2px;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 12.5px; color: var(--text-2); white-space: nowrap;
}

/* ---------------- 工具类 ---------------- */
.ellip {
  max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
textarea.drag {
  border-color: var(--brand); border-style: dashed;
  background: var(--brand-soft);
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 900px) {
  .plat-grid { grid-template-columns: repeat(4, 1fr); }
  .grid3, .grid4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 680px) {
  .app { flex-direction: column; }
  .sidebar {
    width: 100%; flex: none; height: auto; position: fixed; bottom: 0; left: 0; right: 0; top: auto;
    flex-direction: row; padding: 6px; border-top: 1px solid var(--border); border-right: 0;
    z-index: 50; overflow-x: auto; gap: 2px;
  }
  .brand, .sidebar-foot { display: none; }
  .nav-item { flex-direction: column; gap: 3px; font-size: 11px; padding: 7px 6px; min-width: 60px; justify-content: center; }
  .nav-item > span:first-of-type::after { display: none; }
  .nav-item .badge { position: absolute; transform: translate(18px, -8px); }
  .content { padding: 16px 14px 84px; }
  .topbar { padding: 0 14px; }
  .plat-grid { grid-template-columns: repeat(3, 1fr); gap: 9px; }
  .grid2, .grid3, .grid4 { grid-template-columns: 1fr; }
  .task { flex-wrap: wrap; }
  .task .ops { width: 100%; justify-content: flex-end; }
  .drawer { width: 100%; }
  .toasts { left: 14px; right: 14px; }
}