:root{--text: #111827;--muted: #6b7280;--border: #e5e7eb;--background: #ffffff;--surface: #f9fafb;--accent: #111827}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,sans-serif;background:var(--background);color:var(--text);line-height:1.6}.container{width:min(1120px,90%);margin:auto}.narrow{max-width:760px}.center{text-align:center}.header{position:sticky;top:0;background:#ffffffe6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);z-index:100}.header .container{display:flex;justify-content:space-between;align-items:center;padding:1.25rem 0}.header nav{display:flex;gap:1.5rem}.header a{text-decoration:none;color:var(--text)}.hero{padding:8rem 0}.hero h2{font-size:clamp(2.5rem,6vw,5rem);max-width:900px;line-height:1.1;margin:1rem 0}.hero p{max-width:700px;color:var(--muted);margin-bottom:2rem;font-size:1.1rem}.badge{border:1px solid var(--border);padding:.5rem 1rem;border-radius:999px;font-size:.9rem}.btn{display:inline-block;background:var(--accent);color:#fff;padding:.9rem 1.5rem;border-radius:10px;text-decoration:none;transition:.2s;margin-top:1rem}.btn:hover{opacity:.9}.section{padding:6rem 0}.gray{background:var(--surface)}.section h2{font-size:2.5rem;margin-bottom:1.5rem}.section p{color:var(--muted)}.grid{margin-top:3rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.card{background:#fff;padding:2rem;border:1px solid var(--border);border-radius:16px}.card h3{margin-bottom:1rem}.footer{border-top:1px solid var(--border);padding:2rem 0;text-align:center;color:var(--muted)}