*,:before,:after{box-sizing:border-box}body{-webkit-font-smoothing:antialiased;margin:0}*{box-sizing:border-box;margin:0;padding:0}body{color:#111;background:#f9fafb;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.hero{text-align:center;flex-direction:column;justify-content:center;align-items:center;max-width:680px;min-height:100vh;margin:0 auto;padding:2rem;display:flex}h1{margin-bottom:1rem;font-size:2.5rem;font-weight:800;line-height:1.2}.subheadline{color:#555;max-width:480px;margin-bottom:2rem;font-size:1.125rem}.cta{color:#fff;cursor:pointer;background:#2563eb;border:none;border-radius:8px;padding:.875rem 2rem;font-size:1.125rem;font-weight:600;transition:background .15s}.cta:hover{background:#1d4ed8}