/* Sentinel design system — dark (default) + light */
:root,
[data-theme="dark"] {
  --bg: #070b14;
  --bg-elevated: #0d1321;
  --bg-panel: #111827;
  --bg-hover: #1a2234;
  --border: rgba(148, 163, 184, 0.14);
  --border-strong: #1e2a3f;
  --text: #eef2f7;
  --text-2: #94a3b8;
  --text-3: #64748b;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --purple: #8b5cf6;
  --green: #22c55e;
  --amber: #f59e0b;
  --red: #ef4444;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  --glow-a: rgba(59, 130, 246, 0.1);
  --glow-b: rgba(139, 92, 246, 0.06);
  --sidebar-bg: #0d1321;
  --topbar-bg: rgba(7, 11, 20, 0.85);
  --input-bg: #111827;
  --radius: 14px;
  --radius-sm: 8px;
  --font: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg: #f4f6fb;
  --bg-elevated: #ffffff;
  --bg-panel: #ffffff;
  --bg-hover: #eef2f8;
  --border: rgba(15, 23, 42, 0.1);
  --border-strong: #dbe3ef;
  --text: #0f172a;
  --text-2: #475569;
  --text-3: #64748b;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --purple: #7c3aed;
  --green: #16a34a;
  --amber: #d97706;
  --red: #dc2626;
  --shadow: 0 16px 48px rgba(15, 23, 42, 0.08);
  --glow-a: rgba(37, 99, 235, 0.06);
  --glow-b: rgba(124, 58, 237, 0.04);
  --sidebar-bg: #ffffff;
  --topbar-bg: rgba(255, 255, 255, 0.92);
  --input-bg: #f8fafc;
}

html { color-scheme: dark; }
[data-theme="light"] { color-scheme: light; }

* { transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), color 0.15s var(--ease); }