:root {
  --primary-bg: #0f172a;
  --secondary-bg: #1e293b;
  --card-bg: #334155;
  --accent-color: #3b82f6;
  --accent-hover: #2563eb;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-color: #475569;
  --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--primary-bg);
  color: var(--text-primary);
  line-height: 1.6;
}

/* Typography */
h1 { font-size: 2.5rem; font-weight: 700; margin-bottom: 1rem; }
h2 { font-size: 2rem; font-weight: 600; margin-bottom: 1.5rem; color: var(--text-primary); }
h3 { font-size: 1.5rem; font-weight: 600; margin: 2rem 0 1rem; color: var(--text-secondary); }
p { color: var(--text-secondary); margin-bottom: 1rem; }
ul { color: var(--text-secondary); }
li { margin-bottom: 0.5rem; }

/* Links */
a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent-hover);
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}