*{box-sizing:border-box}body{font-family:Arial,Helvetica,sans-serif;background:#f3f4f6;margin:0;color:#111827}header{background:#111827;color:white;padding:14px 24px;display:flex;justify-content:space-between;align-items:center}header a{color:white;text-decoration:none;margin-left:16px}main{padding:24px}.grid{display:grid;grid-template-columns:420px 1fr;gap:24px}.card{background:white;border:1px solid #e5e7eb;border-radius:12px;padding:22px;box-shadow:0 6px 18px rgba(0,0,0,.04)}.small{max-width:420px;margin:80px auto}.login{background:#111827}h1{margin-top:0}label{display:block;font-weight:bold;margin-top:12px;margin-bottom:5px}input,select,textarea{width:100%;padding:10px;border:1px solid #d1d5db;border-radius:8px;font:inherit}button{background:#111827;color:white;border:0;border-radius:8px;padding:10px 14px;margin-top:14px;cursor:pointer}button:hover{background:#374151}.muted{color:#6b7280;font-size:13px}.error{background:#fee2e2;color:#991b1b;padding:10px;border-radius:8px}.signature-box{background:#fff;border:1px dashed #cbd5e1;border-radius:8px;padding:18px;margin-bottom:14px;overflow:auto}textarea#htmlOutput{font-family:Consolas,monospace;font-size:12px}table{width:100%;border-collapse:collapse}th,td{text-align:left;border-bottom:1px solid #e5e7eb;padding:8px}th{color:#4b5563;font-size:12px;text-transform:uppercase}.check{font-weight:normal;display:flex;gap:8px;align-items:center}.check input{width:auto}@media(max-width:900px){.grid{grid-template-columns:1fr}header{display:block}header nav{margin-top:10px}header a{margin:0 10px 0 0}}

.success{background:#dcfce7;color:#166534;padding:10px;border-radius:8px}
hr{border:0;border-top:1px solid #e5e7eb;margin:22px 0}