:root {
  --canvas: #f6f5f1;
  --surface: #ffffff;
  --surface-2: #f1f0ea;
  --ink: #1c1d21;
  --ink-2: #666a73;
  --line: rgba(28, 29, 33, 0.12);
  --accent: #3d5afe;
  --accent-soft: rgba(61, 90, 254, 0.1);
  --ok: #1a7f4b;
  --ok-soft: rgba(26, 127, 75, 0.12);
  --warn: #b45309;
  --warn-soft: rgba(180, 83, 9, 0.13);
  --bad: #c0392b;
  --bad-soft: rgba(192, 57, 43, 0.12);
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --canvas: #15161a;
    --surface: #1e2026;
    --surface-2: #262832;
    --ink: #eceef2;
    --ink-2: #9aa0ab;
    --line: rgba(236, 238, 242, 0.1);
    --accent: #7b8cff;
    --accent-soft: rgba(123, 140, 255, 0.14);
    --ok: #4cc38a;
    --ok-soft: rgba(76, 195, 138, 0.14);
    --warn: #e0a04b;
    --warn-soft: rgba(224, 160, 75, 0.15);
    --bad: #ef6a5a;
    --bad-soft: rgba(239, 106, 90, 0.15);
  }
}

* { box-sizing: border-box; }
html, body, #root { margin: 0; padding: 0; }

body {
  background: var(--canvas);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app { max-width: 1080px; margin: 0 auto; padding: 18px 20px 28px; }

.app-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 14px;
}
.head-left { display: flex; gap: 10px; align-items: flex-start; }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--accent-soft); color: var(--accent); flex: none;
}
.app-head h1 { font-size: 17px; margin: 0; letter-spacing: -0.01em; }
.head-sub { margin: 2px 0 0; font-size: 12px; color: var(--ink-2); }

.demo-badge {
  font-size: 11px; color: var(--ink-2);
  border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; white-space: nowrap;
}

.overview { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 14px; }
.ov-item {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 10px 12px; display: flex; flex-direction: column; gap: 2px;
}
.ov-num { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.ov-label { font-size: 11px; color: var(--ink-2); }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 12px; flex-wrap: wrap; }
.tab {
  display: inline-flex; align-items: center; gap: 6px;
  font: inherit; font-size: 13px; font-weight: 500; color: var(--ink-2);
  background: transparent; border: none; border-bottom: 2px solid transparent;
  padding: 8px 12px; cursor: pointer; margin-bottom: -1px;
}
.tab:hover { color: var(--ink); }
.tab.is-active { color: var(--accent); border-bottom-color: var(--accent); }

.filter-row { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.chip-btn {
  font: inherit; font-size: 11.5px; color: var(--ink-2);
  background: transparent; border: 1px solid var(--line); border-radius: 999px;
  padding: 4px 10px; cursor: pointer;
}
.chip-btn:hover { color: var(--ink); }
.chip-btn.is-active { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }

.cols { display: grid; grid-template-columns: 340px 1fr; gap: 14px; align-items: start; }
.list-panel {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 6px; display: flex; flex-direction: column; gap: 2px;
}
.row {
  display: flex; flex-direction: column; gap: 5px; width: 100%; text-align: left;
  border: 1px solid transparent; border-radius: 8px; background: transparent; color: var(--ink);
  padding: 9px 10px; cursor: pointer; font: inherit;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.row:hover { background: var(--surface-2); }
.row.is-selected { background: var(--accent-soft); border-color: var(--accent); }
.row-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.row-name { font-weight: 600; font-size: 13px; }
.row-sub { font-weight: 400; font-size: 11.5px; color: var(--ink-2); }
.row-meta { display: flex; justify-content: space-between; gap: 8px; font-size: 11.5px; color: var(--ink-2); align-items: center; font-variant-numeric: tabular-nums; }
.row-meta span:first-child { display: inline-flex; align-items: center; gap: 4px; }

.num { font-variant-numeric: tabular-nums; }
.num.over { color: var(--bad); font-weight: 600; }

.chip {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 11px; font-weight: 600; border-radius: 999px; padding: 2px 8px; white-space: nowrap;
}
.chip.st-ok { color: var(--ok); background: var(--ok-soft); }
.chip.st-warn { color: var(--warn); background: var(--warn-soft); }
.chip.st-bad { color: var(--bad); background: var(--bad-soft); }
.chip.st-dim { color: var(--ink-2); background: var(--surface-2); }
.sev-chip.sev-warn { color: var(--warn); background: var(--warn-soft); }
.sev-chip.sev-critical { color: var(--bad); background: var(--bad-soft); }
.sev-chip.sev-info { color: var(--ink-2); background: var(--surface-2); }

.detail-panel {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; min-width: 0;
}
.detail-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.detail-head h2 { margin: 0; font-size: 16px; }
.detail-sub { margin: 2px 0 0; font-size: 12px; color: var(--ink-2); }

.form-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.field { display: flex; flex-direction: column; gap: 4px; min-width: 160px; flex: 1; }
.field-label { display: inline-flex; align-items: center; gap: 4px; font-size: 11.5px; color: var(--ink-2); font-weight: 600; }
.field select, .field input[type='text'], .field input:not([type]) {
  font: inherit; font-size: 12.5px; color: var(--ink);
  background: var(--surface-2); border: 1px solid var(--line); border-radius: 7px; padding: 5px 8px;
}
.quota-field { flex: 2; }
.quota-field input[type='range'] { width: 100%; accent-color: var(--accent); }
.quota-field .num { font-size: 12.5px; font-variant-numeric: tabular-nums; }
.quota-big .quota-bar { height: 8px; }

.btn-primary {
  display: inline-flex; align-items: center; gap: 6px;
  font: inherit; font-size: 13px; font-weight: 600; color: #fff;
  background: var(--accent); border: none; border-radius: 8px;
  padding: 8px 14px; cursor: pointer; transition: filter 0.15s ease; white-space: nowrap;
}
.btn-primary:hover { filter: brightness(1.08); }
.btn-primary:disabled { opacity: 0.55; cursor: default; }

.btn-ghost {
  font: inherit; font-size: 12.5px; font-weight: 600; color: var(--ink-2);
  background: transparent; border: 1px solid var(--line); border-radius: 8px;
  padding: 6px 12px; cursor: pointer; display: inline-flex; align-items: center; gap: 6px;
}
.btn-ghost:hover { color: var(--ink); }

.checks { display: flex; flex-direction: column; }
.check-row { display: flex; gap: 10px; padding: 8px 6px; border-top: 1px solid var(--line); }
.st-icon { flex: none; margin-top: 2px; }
.st-icon.st-ok { color: var(--ok); }
.st-icon.st-warn { color: var(--warn); }
.st-icon.st-bad { color: var(--bad); }
.check-body { min-width: 0; flex: 1; }
.check-label { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.check-name { font-size: 13px; font-weight: 600; }
.check-note { margin: 2px 0 0; font-size: 12px; color: var(--ink-2); }

.freshness { display: inline-flex; align-items: center; gap: 5px; font-size: 11.5px; color: var(--ink-2); font-variant-numeric: tabular-nums; }

.quota-bar { display: block; height: 5px; border-radius: 999px; background: var(--surface-2); overflow: hidden; }
.quota-fill { display: block; height: 100%; border-radius: 999px; background: var(--accent); transition: width 0.2s ease; }
.quota-bar.over .quota-fill { background: var(--bad); }

.audit-list { display: flex; flex-direction: column; }
.audit-row {
  display: grid; grid-template-columns: 8px 96px 92px 100px 110px 1fr auto;
  align-items: center; gap: 10px; padding: 8px 6px; border-top: 1px solid var(--line);
  font-size: 12.5px; font-variant-numeric: tabular-nums;
}
.sev-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ink-2); }
.sev-warn .sev-dot { background: var(--warn); }
.sev-critical .sev-dot { background: var(--bad); }
.audit-time { color: var(--ink-2); font-size: 12px; }
.audit-action { font-weight: 600; }
.audit-actor, .audit-target, .audit-detail { color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.empty { padding: 16px 6px; color: var(--ink-2); font-size: 12.5px; }
.flash {
  margin: 0 0 10px; padding: 8px 12px; border-radius: 8px;
  background: var(--ok-soft); color: var(--ok); font-size: 12.5px;
}

/* platform */
.plat-sec { margin-bottom: 18px; }
.plat-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin: 8px 0; }
.plat-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.node-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.node-card { border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; display: flex; flex-direction: column; gap: 4px; }
.node-card.is-warn { border-color: var(--warn); }
.node-name { display: flex; align-items: center; justify-content: space-between; gap: 6px; font-weight: 600; font-size: 12.5px; }
.node-sub { font-size: 11px; color: var(--ink-2); }
.mini-bar { display: flex; align-items: center; gap: 6px; font-size: 10.5px; color: var(--ink-2); }
.mini-bar > span { flex: 1; height: 4px; border-radius: 999px; background: var(--surface-2); overflow: hidden; }
.mini-fill { display: block; height: 100%; border-radius: 999px; background: var(--accent); }
.mini-fill.cpu { background: var(--accent); }
.mini-fill.mem { background: var(--ok); }
.node-card.is-warn .mini-fill { background: var(--warn); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.integrity { display: flex; flex-direction: column; gap: 10px; padding-top: 6px; font-size: 12.5px; color: var(--ink-2); }
.integrity b { color: var(--ink); }
.switch {
  display: inline-flex; align-items: center; gap: 8px;
  font: inherit; font-size: 12.5px; font-weight: 600; color: var(--ink-2);
  background: transparent; border: 1px solid var(--line); border-radius: 999px;
  padding: 5px 12px; cursor: pointer;
}
.switch .switch-knob { width: 14px; height: 14px; border-radius: 50%; background: var(--ink-2); transition: background 0.15s ease; }
.switch.on { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.switch.on .switch-knob { background: var(--accent); }

/* cost */
.err-box {
  border: 1px solid var(--warn); background: var(--warn-soft); border-radius: 8px;
  padding: 12px 14px; display: flex; align-items: center; justify-content: space-between;
  gap: 10px; flex-wrap: wrap; margin-bottom: 10px;
}
.err-text { margin: 0; font-size: 12.5px; color: var(--warn); }
.cost-row { display: grid; grid-template-columns: 1fr auto auto; gap: 4px 10px; align-items: center; padding: 7px 4px; border-top: 1px solid var(--line); font-size: 12.5px; }
.cost-row .quota-bar { grid-column: 1 / -1; }
.cost-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cost-meta { color: var(--ink-2); font-size: 11.5px; font-variant-numeric: tabular-nums; }
.cost-fill { background: var(--warn); }
.trend-chart { display: flex; align-items: flex-end; gap: 6px; height: 120px; padding: 8px 4px 0; border-top: 1px solid var(--line); }
.trend-col { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 4px; height: 100%; min-width: 0; }
.trend-bar { width: 100%; max-width: 34px; background: var(--accent); border-radius: 4px 4px 0 0; min-height: 3px; }
.trend-label { font-size: 10px; color: var(--ink-2); font-variant-numeric: tabular-nums; }

.exec-head, .exec-row {
  display: grid;
  grid-template-columns: 130px 150px 130px 70px 80px 1fr;
  gap: 10px;
  align-items: center;
  font-size: 12px;
  padding: 6px 4px;
  border-top: 1px solid var(--line);
}
.exec-head { color: var(--ink-2); font-size: 11px; font-weight: 600; border-top: none; padding-top: 2px; }
.exec-time, .exec-agent, .exec-model, .exec-num { font-variant-numeric: tabular-nums; }
.exec-agent, .exec-model { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.exec-query { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ink-2); }

@media (max-width: 860px) {
  .exec-head { display: none; }
  .exec-row { grid-template-columns: 110px 70px 80px 1fr; }
  .exec-agent, .exec-model { display: none; }
}

/* login */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.login-card {
  width: 100%; max-width: 360px; background: var(--surface); border: 1px solid var(--line);
  border-radius: 14px; padding: 26px 24px; display: flex; flex-direction: column; gap: 12px;
}
.login-card h1 { margin: 0; font-size: 18px; }
.login-card .field input { font: inherit; font-size: 13.5px; padding: 8px 10px; }
.login-hint { margin: 4px 0 0; font-size: 11px; color: var(--ink-2); line-height: 1.6; }

button:focus-visible, select:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.45);
  display: flex; align-items: center; justify-content: center; padding: 20px; z-index: 50;
}
.modal-card {
  width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--line);
  border-radius: 12px; padding: 20px; display: flex; flex-direction: column; gap: 10px;
}
.modal-card h3 { margin: 0; font-size: 15px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 4px; }
.ok-text { margin: 0; font-size: 12.5px; color: var(--ok); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

@media (max-width: 860px) {
  .overview { grid-template-columns: repeat(2, 1fr); }
  .cols { grid-template-columns: 1fr; }
  .node-grid { grid-template-columns: repeat(2, 1fr); }
  .two-col { grid-template-columns: 1fr; }
  .audit-row {
    grid-template-columns: 8px 1fr auto;
    grid-template-areas: 'dot meta chip' 'dot target chip' 'dot detail chip';
    row-gap: 2px;
  }
  .audit-row .sev-dot { grid-area: dot; }
  .audit-row .audit-time { grid-area: meta; }
  .audit-row .audit-action { grid-area: meta; }
  .audit-row .audit-actor { display: none; }
  .audit-row .audit-target { grid-area: target; }
  .audit-row .audit-detail { grid-area: detail; }
  .audit-row .sev-chip { grid-area: chip; }
}