:root{--max:1100px;--pad:18px}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;line-height:1.5}
a{color:inherit;text-decoration:none}
.container{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.topbar{position:sticky;top:0;background:#fff;border-bottom:1px solid #eee;z-index:10}
.topbar .container{display:flex;align-items:center;justify-content:space-between;padding:14px var(--pad)}
.logo{font-weight:700;letter-spacing:.3px}
.menu a{margin-left:14px;color:#444}
.menu a:hover{color:#000}
.hero{padding:70px 0;background:linear-gradient(180deg,#f7f7f7,transparent)}
.hero h1{font-size:clamp(28px,4vw,44px);margin:0 0 10px}
.subtitle{max-width:70ch;color:#555;margin:0 0 18px}
.section{padding:56px 0}
.section.alt{background:#fafafa}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card{background:#fff;border:1px solid #eee;border-radius:14px;padding:18px;box-shadow:0 6px 18px rgba(0,0,0,.03)}
.btn{display:inline-block;padding:11px 16px;border-radius:12px;background:#111;color:#fff;font-weight:600}
.btn.outline{background:transparent;border:1px solid #111;color:#111}
.lead{max-width:80ch}
.muted{color:#666}
.small{font-size:12px}
.split{display:grid;grid-template-columns:1.2fr 1fr;gap:18px;align-items:start}
label{display:block;margin:10px 0;color:#333;font-size:14px}
input,textarea{width:100%;padding:10px;border-radius:10px;border:1px solid #ddd;margin-top:6px;font:inherit}
.footer{padding:26px 0;border-top:1px solid #eee;background:#fff}
@media (max-width:900px){
  .grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .menu{display:none}
}