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

:root {
  --bg: #0f172a;
  --bg-secondary: #1e293b;
  --card: #1e293b;
  --card-hover: #263548;
  --border: #334155;
  --text: #e2e8f0;
  --text-secondary: #94a3b8;
  --muted: #64748b;
  --input-bg: #0f172a;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent2: #8b5cf6;
  --green: #22c55e;
  --green-bg: rgba(34,197,94,0.15);
  --red: #ef4444;
  --red-bg: rgba(239,68,68,0.15);
  --orange: #f59e0b;
  --orange-bg: rgba(245,158,11,0.15);
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.4);
  --transition: 0.2s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

[data-theme="light"] {
  --bg: #f8fafc;
  --bg-secondary: #f1f5f9;
  --card: #ffffff;
  --card-hover: #f8fafc;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-secondary: #475569;
  --muted: #94a3b8;
  --input-bg: #ffffff;
  --shadow: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
}

html { font-size: 14px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  outline: none;
  transition: border-color var(--transition);
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
}

::selection { background: var(--accent); color: #fff; }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--muted); border-radius: 3px; }