:root{--bg:#fff;--text:#0f172a;--muted:#475569;--primary:#2563eb;--border:#e5e7eb}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
.container{max-width:980px;margin:0 auto;padding:24px}
.nav{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--border)}
.nav .inner{display:flex;justify-content:space-between;align-items:center;padding:14px 24px}
.nav a{text-decoration:none;color:inherit} .brand{font-weight:800}
.links a{margin-left:16px;color:var(--primary)}
h1,h2{margin:8px 0 16px}
.section{padding:24px}
.card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.label{display:block;font-weight:600;margin:10px 0 6px}
.input,select,textarea{width:100%;padding:10px;border:1px solid var(--border);border-radius:10px}
.small{color:var(--muted);font-size:12px}
.btn{display:inline-block;margin-top:14px;background:var(--primary);color:#fff;border:none;padding:12px 18px;border-radius:10px;text-decoration:none}
.btn.secondary{background:#fff;color:var(--primary);border:1px solid var(--primary)}
.hero{text-align:center;padding:48px 24px}
footer{padding:20px;border-top:1px solid var(--border);color:var(--muted);text-align:center}
@media(max-width:860px){.row{grid-template-columns:1fr}}