*{box-sizing:border-box;margin:0;padding:0}body{min-height:100vh;display:flex;align-items:center;justify-content:center;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:linear-gradient(135deg,#0f172a,#1e293b);color:#f8fafc;text-align:center;padding:24px}.hero{max-width:640px}.hero__title{font-size:clamp(2rem,5vw,3.5rem);font-weight:700;letter-spacing:-.02em;margin-bottom:16px}.hero__tagline{font-size:clamp(1rem,2.5vw,1.25rem);color:#94a3b8}