:root {
  color-scheme: dark;
  --ui-bg: #081018;
  --ui-bg-raised: #0d1722;
  --ui-surface: #111e2b;
  --ui-surface-2: #162536;
  --ui-surface-hover: #1b2e42;
  --ui-text: #f4f8fb;
  --ui-text-muted: #9fb0c0;
  --ui-text-subtle: #74889b;
  --ui-border: #263b4f;
  --ui-border-strong: #38546c;
  --ui-primary: #42c4e8;
  --ui-primary-strong: #169ac1;
  --ui-on-primary: #04141b;
  --ui-success: #55d38a;
  --ui-warning: #f6bd5c;
  --ui-danger: #ff747d;
  --ui-info: #75a7ff;
  --ui-focus: #8bdcf2;
  --ui-scrim: rgba(1, 7, 12, .72);
  --ui-shadow-sm: 0 8px 22px rgba(0, 0, 0, .18);
  --ui-shadow-lg: 0 24px 64px rgba(0, 0, 0, .35);
  --ui-radius-sm: 8px;
  --ui-radius: 12px;
  --ui-radius-lg: 18px;
  --ui-space-1: 4px;
  --ui-space-2: 8px;
  --ui-space-3: 12px;
  --ui-space-4: 16px;
  --ui-space-5: 24px;
  --ui-space-6: 32px;
  --ui-space-7: 48px;
  --ui-duration: 180ms;
  --ui-font: Inter, "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
  --ui-mono: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
}

:root[data-theme="light"] {
  color-scheme: light;
  --ui-bg: #edf3f7;
  --ui-bg-raised: #f7fafc;
  --ui-surface: #ffffff;
  --ui-surface-2: #f0f5f8;
  --ui-surface-hover: #e6eff4;
  --ui-text: #102333;
  --ui-text-muted: #496274;
  --ui-text-subtle: #687f90;
  --ui-border: #c9d8e2;
  --ui-border-strong: #9fb7c7;
  --ui-primary: #087fa5;
  --ui-primary-strong: #056485;
  --ui-on-primary: #ffffff;
  --ui-success: #147a45;
  --ui-warning: #98620c;
  --ui-danger: #b52f3a;
  --ui-info: #285ea8;
  --ui-focus: #087fa5;
  --ui-scrim: rgba(10, 28, 40, .48);
  --ui-shadow-sm: 0 8px 24px rgba(21, 49, 68, .1);
  --ui-shadow-lg: 0 24px 64px rgba(21, 49, 68, .2);
}

*, *::before, *::after { box-sizing: border-box; }
html { min-width: 320px; background: var(--ui-bg); }
body {
  margin: 0;
  min-height: 100dvh;
  background:
    radial-gradient(circle at 8% -10%, color-mix(in srgb, var(--ui-primary) 12%, transparent), transparent 34rem),
    var(--ui-bg);
  color: var(--ui-text);
  font-family: var(--ui-font);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
button, input, select, textarea { font: inherit; }
button, [role="button"] { touch-action: manipulation; }
a { color: var(--ui-primary); }
:focus-visible { outline: 3px solid var(--ui-focus); outline-offset: 2px; }

.skip-link {
  position: fixed; left: 12px; top: 12px; z-index: 1000;
  transform: translateY(-150%); padding: 10px 14px;
  border-radius: var(--ui-radius-sm); background: var(--ui-primary); color: var(--ui-on-primary);
}
.skip-link:focus { transform: translateY(0); }

.ui-app-header {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between; gap: var(--ui-space-4);
  min-height: 72px; padding: 12px clamp(16px, 3vw, 36px);
  background: color-mix(in srgb, var(--ui-bg-raised) 88%, transparent);
  border-bottom: 1px solid var(--ui-border); backdrop-filter: blur(16px);
}
.ui-brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.ui-brand-mark {
  display: grid; place-items: center; width: 42px; height: 42px; flex: 0 0 auto;
  border-radius: 13px; color: var(--ui-on-primary);
  background: linear-gradient(145deg, var(--ui-primary), var(--ui-primary-strong));
  box-shadow: 0 10px 28px color-mix(in srgb, var(--ui-primary) 24%, transparent);
}
.ui-brand-mark svg, .ui-icon { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.ui-brand h1 { margin: 0; font-size: clamp(1.05rem, 2vw, 1.3rem); line-height: 1.2; letter-spacing: -.02em; }
.ui-brand p { margin: 2px 0 0; color: var(--ui-text-muted); font-size: .78rem; }
.ui-header-actions { display: flex; align-items: center; gap: 10px; }

.ui-main { width: min(1480px, 100%); margin: 0 auto; padding: clamp(16px, 3vw, 32px); }
.ui-command-bar {
  position: sticky; top: 88px; z-index: 30;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  margin-bottom: 24px; padding: 14px;
  border: 1px solid var(--ui-border); border-radius: var(--ui-radius-lg);
  background: color-mix(in srgb, var(--ui-surface) 90%, transparent); box-shadow: var(--ui-shadow-sm); backdrop-filter: blur(12px);
}
.ui-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.ui-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 20px; }
.ui-span-4 { grid-column: span 4; } .ui-span-5 { grid-column: span 5; }
.ui-span-6 { grid-column: span 6; } .ui-span-7 { grid-column: span 7; }
.ui-span-8 { grid-column: span 8; } .ui-span-12 { grid-column: 1 / -1; }

.ui-panel {
  min-width: 0; overflow: hidden; border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-lg); background: var(--ui-surface); box-shadow: var(--ui-shadow-sm);
}
.ui-panel-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 18px 20px; border-bottom: 1px solid var(--ui-border); }
.ui-panel-header h2, .ui-panel-header h3 { margin: 0; font-size: 1rem; }
.ui-panel-header p { margin: 4px 0 0; color: var(--ui-text-muted); font-size: .82rem; }
.ui-panel-body { padding: 20px; }
.ui-stack { display: grid; gap: 16px; }

.ui-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 9px 14px; border: 1px solid var(--ui-border-strong); border-radius: 10px;
  background: var(--ui-surface-2); color: var(--ui-text); font-weight: 650; cursor: pointer;
  transition: background var(--ui-duration), border-color var(--ui-duration), color var(--ui-duration), opacity var(--ui-duration), transform var(--ui-duration);
}
.ui-btn:hover:not(:disabled) { background: var(--ui-surface-hover); border-color: var(--ui-primary); }
.ui-btn:active:not(:disabled) { transform: scale(.98); }
.ui-btn:disabled { opacity: .48; cursor: not-allowed; }
.ui-btn svg { width: 18px; height: 18px; }
.ui-btn-primary { background: var(--ui-primary); border-color: var(--ui-primary); color: var(--ui-on-primary); }
.ui-btn-primary:hover:not(:disabled) { background: var(--ui-primary-strong); border-color: var(--ui-primary-strong); }
.ui-btn-danger { color: var(--ui-danger); border-color: color-mix(in srgb, var(--ui-danger) 52%, var(--ui-border)); }
.ui-btn-danger:hover:not(:disabled) { color: #fff; background: var(--ui-danger); border-color: var(--ui-danger); }
.ui-icon-btn { width: 44px; padding: 0; }

.ui-status {
  display: inline-flex; align-items: center; gap: 8px; min-height: 32px; padding: 5px 10px;
  border: 1px solid var(--ui-border); border-radius: 999px; color: var(--ui-text-muted); background: var(--ui-surface-2); font-size: .82rem; font-weight: 650;
}
.ui-status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--ui-text-subtle); }
.ui-status[data-state="running"] { color: var(--ui-success); }
.ui-status[data-state="running"]::before { background: var(--ui-success); box-shadow: 0 0 0 4px color-mix(in srgb, var(--ui-success) 18%, transparent); }
.ui-status[data-state="error"] { color: var(--ui-danger); }
.ui-status[data-state="error"]::before { background: var(--ui-danger); }

.ui-field { display: grid; gap: 7px; min-width: 0; }
.ui-field > span, .ui-field > label, .ui-label { color: var(--ui-text-muted); font-size: .8rem; font-weight: 650; }
.ui-field small { color: var(--ui-text-subtle); font-size: .75rem; }
.ui-input, .ui-select {
  width: 100%; min-height: 44px; padding: 9px 12px; border: 1px solid var(--ui-border-strong);
  border-radius: 10px; background: var(--ui-bg-raised); color: var(--ui-text); transition: border-color var(--ui-duration), box-shadow var(--ui-duration);
}
.ui-input:hover, .ui-select:hover { border-color: var(--ui-primary); }
.ui-input[aria-invalid="true"] { border-color: var(--ui-danger); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ui-danger) 16%, transparent); }
.ui-field-error { min-height: 1em; color: var(--ui-danger); font-size: .75rem; }
.ui-password { display: grid; grid-template-columns: minmax(0, 1fr) 44px; gap: 8px; }
.ui-check { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; color: var(--ui-text-muted); cursor: pointer; }
.ui-check input { width: 19px; height: 19px; accent-color: var(--ui-primary); }

.ui-table-wrap { width: 100%; overflow-x: auto; border: 1px solid var(--ui-border); border-radius: var(--ui-radius); }
.ui-table { width: 100%; border-collapse: collapse; font-size: .84rem; font-variant-numeric: tabular-nums; }
.ui-table th { padding: 11px 12px; text-align: left; color: var(--ui-text-muted); background: var(--ui-surface-2); border-bottom: 1px solid var(--ui-border); font-size: .73rem; letter-spacing: .04em; text-transform: uppercase; white-space: nowrap; }
.ui-table td { padding: 12px; border-bottom: 1px solid var(--ui-border); vertical-align: top; }
.ui-table tbody tr:last-child td { border-bottom: 0; }
.ui-table tbody tr:hover { background: color-mix(in srgb, var(--ui-primary) 5%, transparent); }

.ui-empty { display: grid; place-items: center; min-height: 150px; padding: 28px; text-align: center; color: var(--ui-text-muted); }
.ui-empty strong { color: var(--ui-text); }
.ui-log {
  height: 360px; overflow: auto; padding: 16px; border: 1px solid var(--ui-border); border-radius: var(--ui-radius);
  background: #050b10; color: #cde0ec; font-family: var(--ui-mono); font-size: .78rem; line-height: 1.65; white-space: pre-wrap;
}
:root[data-theme="light"] .ui-log { background: #10202c; color: #e9f3f8; }
.ui-meta-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.ui-meta { padding: 12px; border: 1px solid var(--ui-border); border-radius: 10px; background: var(--ui-surface-2); }
.ui-meta span { display: block; color: var(--ui-text-muted); font-size: .72rem; }
.ui-meta strong { display: block; margin-top: 4px; overflow-wrap: anywhere; font-size: .9rem; font-variant-numeric: tabular-nums; }

.ui-toast-region { position: fixed; right: 18px; bottom: 18px; z-index: 120; display: grid; gap: 10px; width: min(380px, calc(100vw - 36px)); }
.ui-toast { padding: 13px 15px; border: 1px solid var(--ui-border-strong); border-radius: 12px; background: var(--ui-surface); box-shadow: var(--ui-shadow-lg); animation: ui-toast-in var(--ui-duration) ease-out; }
.ui-toast[data-tone="success"] { border-color: var(--ui-success); }
.ui-toast[data-tone="error"] { border-color: var(--ui-danger); }
.ui-dialog { width: min(560px, calc(100vw - 32px)); border: 1px solid var(--ui-border-strong); border-radius: var(--ui-radius-lg); padding: 0; color: var(--ui-text); background: var(--ui-surface); box-shadow: var(--ui-shadow-lg); }
.ui-dialog::backdrop { background: var(--ui-scrim); backdrop-filter: blur(4px); }
.ui-dialog-body { padding: 22px; }
.ui-dialog h2 { margin: 0 0 8px; font-size: 1.1rem; }
.ui-dialog p { margin: 0; color: var(--ui-text-muted); }
.ui-dialog-actions { display: flex; justify-content: flex-end; gap: 8px; padding: 14px 22px; border-top: 1px solid var(--ui-border); }

.ui-details { border: 1px solid var(--ui-border); border-radius: var(--ui-radius); background: var(--ui-surface-2); }
.ui-details summary { min-height: 48px; padding: 12px 14px; cursor: pointer; font-weight: 700; }
.ui-details-body { padding: 4px 14px 16px; }
.ui-file-input { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.ui-unsaved { color: var(--ui-warning); font-size: .8rem; font-weight: 650; }
[hidden] { display: none !important; }

@keyframes ui-toast-in { from { opacity: 0; transform: translateY(10px); } }
@media (max-width: 980px) {
  .ui-span-4, .ui-span-5, .ui-span-6, .ui-span-7, .ui-span-8 { grid-column: 1 / -1; }
  .ui-command-bar { top: 80px; }
}
@media (max-width: 640px) {
  .ui-app-header { align-items: flex-start; min-height: 64px; padding: 10px 14px; }
  .ui-brand p { display: none; }
  .ui-main { padding: 14px; }
  .ui-command-bar { position: static; padding: 12px; }
  .ui-actions { width: 100%; }
  .ui-actions .ui-btn { flex: 1 1 132px; }
  .ui-panel-header, .ui-panel-body { padding: 16px; }
  .ui-table.responsive, .ui-table.responsive tbody, .ui-table.responsive tr, .ui-table.responsive td { display: block; width: 100%; }
  .ui-table.responsive thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .ui-table.responsive tr { padding: 12px; border-bottom: 1px solid var(--ui-border); }
  .ui-table.responsive td { display: grid; grid-template-columns: 100px 1fr; gap: 10px; padding: 7px 0; border: 0; }
  .ui-table.responsive td::before { content: attr(data-label); color: var(--ui-text-muted); font-size: .75rem; font-weight: 700; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}