:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #14141f;
  --bg-tertiary: #1e1e2e;
  --text-primary: #e0e0e0;
  --text-secondary: #888;
  /* v0.36.1.0 TD2 — bumped from #555 (contrast 4.0 on #0a0a0f bg, below WCAG AA
     4.5 for body text) to #777 (contrast ~5.5, passes AA). Applies globally
     to Dashboard, Agents, RequestLog, and the new Calibration tab. */
  --text-muted: #777;
  --accent: #3b82f6;
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;
  --font-mono: 'JetBrains Mono', monospace;
  --font-sans: 'Inter', system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
}

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

.sidebar {
  width: 200px;
  background: var(--bg-secondary);
  border-right: 1px solid #1e1e2e;
  padding: 16px 0;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}

.sidebar-logo {
  font-size: 18px;
  font-weight: 600;
  padding: 0 16px 24px;
  color: var(--text-primary);
}

.sidebar-nav { display: flex; flex-direction: column; gap: 2px; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: all 0.15s;
}

.nav-item:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.nav-item.active {
  border-left-color: var(--accent);
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.main { flex: 1; padding: 24px 32px; overflow-y: auto; }

.page-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
}

/* Metrics bar */
.metrics { display: flex; gap: 16px; margin-bottom: 24px; }
.metric {
  background: var(--bg-secondary);
  padding: 16px 20px;
  border-radius: 6px;
  min-width: 140px;
}
.metric-value {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 500;
}
.metric-label { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 8px 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
}
td {
  padding: 10px 12px;
  font-size: 13px;
  border-top: 1px solid #1a1a2a;
}
tr:hover td { background: var(--bg-tertiary); }

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 500;
}
.badge-read { background: rgba(59,130,246,0.15); color: var(--accent); }
.badge-write { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-admin { background: rgba(239,68,68,0.15); color: var(--error); }
.badge-success { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-error { background: rgba(239,68,68,0.15); color: var(--error); }

/* Status dots */
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
}
.status-active { background: var(--success); }
.status-warning { background: var(--warning); }
.status-inactive { background: var(--text-muted); }

/* Buttons */
.btn {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: #2563eb; }
.btn-secondary { background: transparent; color: var(--text-secondary); border: 1px solid #333; }
.btn-secondary:hover { border-color: var(--text-secondary); color: var(--text-primary); }
.btn-danger { background: transparent; color: var(--error); border: 1px solid var(--error); }
.btn-danger:hover { background: rgba(239,68,68,0.1); }

/* Forms */
input, select {
  background: var(--bg-primary);
  border: 1px solid #333;
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 13px;
  font-family: var(--font-sans);
  width: 100%;
}
input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(59,130,246,0.2);
}
input::placeholder { color: var(--text-muted); }
label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; }

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal {
  background: var(--bg-secondary);
  border-radius: 8px;
  padding: 24px;
  min-width: 420px;
  max-width: 520px;
}
.modal-title { font-size: 18px; font-weight: 600; margin-bottom: 20px; }

/* Drawer */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 90;
}
.drawer {
  position: fixed;
  right: 0;
  top: 0;
  bottom: 0;
  width: 420px;
  background: var(--bg-secondary);
  border-left: 1px solid var(--accent);
  padding: 24px;
  z-index: 91;
  overflow-y: auto;
}
.drawer-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
}

/* Section headers */
.section-title {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  margin: 20px 0 12px;
  font-weight: 500;
}

/* Health panel */
.health-panel {
  background: var(--bg-secondary);
  border-radius: 6px;
  padding: 16px;
}
.health-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 13px;
}

/* Code block */
.code-block {
  background: var(--bg-primary);
  border-radius: 6px;
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  overflow-x: auto;
  position: relative;
}
.code-block .copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--accent);
  color: white;
  border: none;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
}

/* Activity feed */
.feed { max-height: 400px; overflow-y: auto; }
.feed-empty {
  color: var(--text-muted);
  text-align: center;
  padding: 32px;
  font-size: 13px;
}

/* Sparkline */
.sparkline { display: inline-block; vertical-align: middle; }

/* Filter bar */
.filter-bar { display: flex; gap: 12px; margin-bottom: 16px; align-items: center; }
.filter-bar select { width: auto; min-width: 140px; }

/* Pagination */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  font-size: 13px;
  color: var(--text-secondary);
}
.pagination button {
  background: var(--bg-secondary);
  border: 1px solid #333;
  color: var(--text-primary);
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
}
.pagination button:disabled { opacity: 0.3; cursor: default; }

/* Warning bar */
.warning-bar {
  background: rgba(245,158,11,0.15);
  border: 1px solid var(--warning);
  color: var(--warning);
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 13px;
  margin: 12px 0;
}

/* Checkbox */
.checkbox-group { display: flex; gap: 16px; flex-wrap: wrap; }
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  cursor: pointer;
}

/* Tabs */
.tabs { display: flex; gap: 0; margin-bottom: 12px; }
.tab {
  padding: 6px 12px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* Login page */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg-primary);
}
.login-box { text-align: left; width: 340px; }
.login-logo { font-size: 32px; font-weight: 600; margin-bottom: 32px; }
.login-hint { color: var(--text-muted); font-size: 12px; margin-top: 12px; }
.login-error { color: var(--error); font-size: 13px; margin-top: 8px; }

/* Monospace data */
.mono { font-family: var(--font-mono); font-size: 12px; }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { padding: 16px; }
  .metrics { flex-wrap: wrap; }
  .drawer { width: 100%; }
}
