:root {
  --primary-color: #0066cc;
  --primary-hover: #005bb7;
  --secondary-color: #00a6ff;
  --accent-color: #ff6b35;
  --text-primary: #1a1a1a;
  --bg-primary: #ffffff;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-base: 16px;
  --border-radius: 8px;
}
.btn { border-radius: 8px; }
.card { box-shadow: 0 4px 12px rgba(0,0,0,0.1); }