:root{color-scheme:light;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#1a1f2b;background:#fff}*{box-sizing:border-box}body{margin:0}main{min-height:100vh;display:flex;flex-direction:column}header{padding:1.25rem 2rem;border-bottom:1px solid #e6e8ee}.brand{font-weight:700;font-size:1.25rem;letter-spacing:.02em}.hero{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:4rem 2rem}.hero h1{font-size:clamp(1.75rem,4vw,3rem);margin:0 0 1rem}.hero p{color:#5b6475;margin:0}footer{padding:1.25rem 2rem;border-top:1px solid #e6e8ee;color:#5b6475;font-size:.875rem}