:root{--primary:#2563eb;--primary-dark:#1d4ed8;--secondary:#64748b;--background:#ffffff;--foreground:#0f172a;--muted:#f8fafc;--border:#e2e8f0;--success:#22c55e;--error:#ef4444}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;line-height:1.6;color:var(--foreground);background:var(--background)}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;border-radius:.5rem;font-weight:500;transition:all .2s;border:none}.btn-primary{background:var(--primary);color:white}.btn-primary:hover{background:var(--primary-dark)}.btn-secondary{background:var(--muted);color:var(--foreground);border:1px solid var(--border)}.btn-secondary:hover{background:var(--border)}.btn-large{padding:1rem 2rem;font-size:1.125rem}section{padding:4rem 0}h1{font-size:3rem;line-height:1.2}h1,h2{font-weight:700}h2{font-size:2.25rem;line-height:1.3}h3{font-size:1.5rem;font-weight:600}