:root {
  --bg: #f7f8fb;
  --panel: #ffffff;
  --line: #dfe3ea;
  --text: #172033;
  --muted: #667085;
  --blue: #1d4ed8;
  --green: #15803d;
  --amber: #b45309;
  --red: #b91c1c;
  --slate: #475569;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 14px;
}

a {
  color: inherit;
  text-decoration: none;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 28px;
  background: #111827;
  color: #fff;
}

.brand {
  font-size: 20px;
  font-weight: 700;
}

.subtitle {
  margin-top: 4px;
  color: #cbd5e1;
  font-size: 12px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

nav a {
  padding: 8px 12px;
  border-radius: 6px;
  color: #dbe4f0;
}

nav a.active,
nav a:hover {
  background: #273449;
  color: #fff;
}

.page {
  width: min(1280px, calc(100% - 32px));
  margin: 24px auto 48px;
}

.page-title {
  margin: 0 0 16px;
  font-size: 24px;
}

.grid {
  display: grid;
  gap: 16px;
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.panel,
.metric-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.panel h2 {
  margin: 0 0 14px;
  font-size: 17px;
}

.metric-label {
  color: var(--muted);
  font-size: 13px;
}

.metric-value {
  margin-top: 8px;
  font-size: 26px;
  font-weight: 700;
}

.metric-hint {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
}

th,
td {
  padding: 11px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-weight: 600;
  background: #f8fafc;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.badge-ok {
  background: #dcfce7;
  color: var(--green);
}

.badge-watch {
  background: #dbeafe;
  color: var(--blue);
}

.badge-warn {
  background: #fef3c7;
  color: var(--amber);
}

.badge-stop {
  background: #fee2e2;
  color: var(--red);
}

.badge-muted {
  background: #e5e7eb;
  color: var(--slate);
}

.muted {
  color: var(--muted);
}

.risk-note {
  border-left: 4px solid var(--amber);
  background: #fffbeb;
  padding: 12px 14px;
  border-radius: 6px;
  color: #7c2d12;
}

.actions {
  display: flex;
  gap: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--blue);
  font-weight: 600;
}

.footer {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto 24px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 900px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .grid-4,
  .grid-2 {
    grid-template-columns: 1fr;
  }
}