.mdbk-wrap{max-width:720px;padding:16px;border:1px solid #e6e6e6;border-radius:14px}
.mdbk-form label{display:block;margin:10px 0 6px;font-weight:600}
.mdbk-form input,.mdbk-form select,.mdbk-form textarea{width:100%;padding:10px;border:1px solid #ddd;border-radius:10px}
.mdbk-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.mdbk-btn{margin-top:12px;padding:12px 14px;border:0;border-radius:12px;cursor:pointer}
.mdbk-result{margin-top:12px;padding:10px;border-radius:12px}
.mdbk-result.ok{background:#e9fff0;border:1px solid #b9f2c7}
.mdbk-result.err{background:#ffecec;border:1px solid #f3b6b6}
@media(max-width:640px){.mdbk-grid{grid-template-columns:1fr}}