:root{--fg:#0b0b0b;--bg:#fff;--muted:#666;--border:#e6e6e6}
*{box-sizing:border-box;font-family:system-ui,-apple-system,Segoe UI,Inter,Roboto,Arial,sans-serif}
body{margin:0;background:var(--bg);color:var(--fg)}
.container{max-width:860px;margin:32px auto;padding:0 16px}
h1,h2{margin:8px 0 12px}.hint{color:var(--muted);margin:-2px 0 12px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label{display:flex;flex-direction:column;gap:6px;font-weight:600}
input,select,button{padding:10px 12px;border:1px solid var(--border);border-radius:10px;font-weight:500}
input[disabled]{background:#fafafa;color:#777}
hr{margin:28px 0;border:none;border-top:1px solid var(--border)}
.checks{margin:12px 0;display:flex;flex-direction:column;gap:8px}
.small{color:var(--muted);font-size:14px}button{cursor:pointer}
@media (max-width:680px){.grid{grid-template-columns:1fr}}