:root{--text-secondary:#666;--title-color:#333;--accent:#00aeef}#hero{min-height:100vh;display:flex;align-items:center;justify-content:center}.site-header{text-align:center;max-width:800px;margin:0 auto}.site-intro{font-size:1.1rem;color:var(--text-secondary);line-height:1.7;margin-bottom:2.5rem;min-height:4em}.site-title{font-size:clamp(2.5rem,8vw,4rem);font-weight:800;color:var(--title-color);margin-bottom:1rem}.site-tagline{font-size:clamp(1rem,3vw,1.2rem);color:var(--text-secondary);margin-bottom:2rem}