:root { --primary: #00d4ff; --bg: #1a1a2e; }
body { font-family: system-ui, sans-serif; background: var(--bg); color: #eee; }
h1, h2, h3 { color: var(--primary); }
.container { max-width: 1200px; margin: 0 auto; padding: 20px; }