:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}html{scroll-behavior:smooth}body{margin:0}.navbar{position:sticky;top:0;z-index:9999;background:#1f4ed8;padding:14px 20px;display:flex;justify-content:space-between;align-items:center}.navbar a{color:#fff;text-decoration:none;margin-left:16px;font-weight:600}.navbar a:hover{text-decoration:underline}section{scroll-margin-top:80px;padding:70px 20px}.hero{background:#1f4ed8;color:#fff;padding:90px 20px}.container{max-width:1000px;margin:0 auto}.card{border:1px solid #e6e6e6;border-radius:12px;padding:18px;margin-top:12px}.btn{background:#1f4ed8;color:#fff;border:0;padding:12px 14px;border-radius:10px;cursor:pointer}.btn:disabled{opacity:.6;cursor:not-allowed}input,textarea{width:100%;padding:10px 12px;margin-top:8px;border-radius:10px;border:1px solid #ccc;font-size:16px}