:root{--bg:#f9fafb;--card:#fff;--text:#111827;--muted:#6b7280;--border:#e5e7eb;--accent:#2563eb;--danger:#dc2626}*{box-sizing:border-box}body{background:#f9fafb;background:var(--bg);color:#111827;color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;margin:0}.container-sign{background:#fff;background:var(--card);border:1px solid #e5e7eb;border:1px solid var(--border);border-radius:10px;box-shadow:0 6px 24px #0000000f;margin:24px auto;max-width:900px;padding:28px}h1{font-size:24px;margin:0 0 6px}.sub,h1{text-align:center}.sub{color:#6b7280;color:var(--muted);margin:0 0 20px}.doc{background:#f3f4f6;border:1px solid #e5e7eb;border:1px solid var(--border);border-radius:8px;max-height:660px;overflow:auto;padding:18px}.row{align-items:center;display:flex;flex-wrap:wrap;gap:12px;margin:8px 0 14px}.tag{background:#fff;border:1px solid #e5e7eb;border:1px solid var(--border);border-radius:6px;padding:6px 10px}.label{font-weight:600}.hr{background:#e5e7eb;background:var(--border);border:0;height:1px;margin:20px 0}.sigbox{background:#fff;border:1px solid #e5e7eb;border:1px solid var(--border);border-radius:8px;padding:14px}.sig-title{font-weight:600;margin:0 0 8px}.container-sign .btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}.container-sign button{background:#2563eb;background:var(--accent);border:0;border-radius:8px;color:#fff;cursor:pointer;font-weight:600;padding:10px 14px}.container-sign .btn-clear{background:#dc2626;background:var(--danger)}.hint{color:#6b7280;color:var(--muted);font-size:13px;margin-top:6px}.lines{grid-gap:10px;display:grid;gap:10px;margin-top:12px}.line{align-items:center;display:flex;gap:8px}.line .label{min-width:120px}.blank{border-bottom:1px solid #9ca3af;flex:1 1;height:20px}.sig-preview{display:none;max-height:120px}.foot{color:#6b7280;color:var(--muted);font-size:12px;margin-top:10px}.container-sign .success{padding:40px;text-align:center}.container-sign .success h2{color:#059669}@media print{body{background:#fff}.container-sign{border:0;box-shadow:none;margin:0;max-width:100%;padding:0}.controls,.sig-canvas{display:none}.sig-preview{display:block}}