:root{--bg:#fff;--text:#0f172a;--muted:#475569;--primary:#000;--radius:14px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}main{width:100%;overflow-x:hidden}.container{max-width:1120px;margin:0 auto;padding:96px 24px}.hero{padding:140px 0 120px}.hero h1{font-size:clamp(2.5rem,5vw,4rem);font-weight:800;max-width:900px;margin-bottom:24px}.hero p{font-size:1.125rem;color:var(--muted);max-width:640px;margin-bottom:40px}.hero button{background:var(--primary);color:#fff;border:none;padding:16px 28px;font-size:1rem;border-radius:var(--radius);cursor:pointer;transition:transform .15s ease,opacity .15s ease}.hero button:hover{transform:translateY(-1px);opacity:.9}.features{background:#f8fafc}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));grid-gap:32px;gap:32px}.feature-card{background:#fff;padding:32px;border-radius:var(--radius);box-shadow:0 20px 40px rgba(0,0,0,.04)}.feature-card h3{margin-top:0;margin-bottom:12px}.feature-card p{color:var(--muted);margin:0}