:root{--border:#e5e7eb;--primary:#0B76FF;--muted:#64748b}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;margin:0}
.wrap{max-width:980px;margin:0 auto;padding:24px}
.card{border:1px solid var(--border);border-radius:14px;padding:18px;background:#fff;margin:12px 0}
label{display:block;margin:10px 0 6px;font-weight:600}
input,textarea,select{width:100%;padding:10px;border:1px solid #d1d5db;border-radius:10px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.btn{display:inline-block;padding:10px 14px;border-radius:10px;border:1px solid var(--border);background:#fff;color:inherit;text-decoration:none;cursor:pointer}
.btn.primary{background:var(--primary);color:#fff;border:none}
.small{color:var(--muted)}
.sigframe{width:100%;height:260px;border:1px dashed var(--border);border-radius:10px}
.error{background:#fee2e2;border:1px solid #fecaca;color:#7f1d1d;border-radius:10px;padding:12px;margin:12px 0;white-space:pre-wrap}