body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:#f6f7fb;color:#1f2937}a{color:#2563eb;text-decoration:none}.container{max-width:1100px;margin:0 auto;padding:24px}.card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:20px;margin-bottom:16px}.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}label{display:block;font-size:13px;margin-bottom:6px}input,select,textarea,button{width:100%;box-sizing:border-box;padding:10px 12px;border-radius:8px;border:1px solid #d1d5db;font:inherit}button{background:#2563eb;color:#fff;border:none;cursor:pointer}button.secondary{background:#6b7280}table{width:100%;border-collapse:collapse}th,td{border-bottom:1px solid #e5e7eb;padding:10px;text-align:left;vertical-align:top}.error{color:#b91c1c;white-space:pre-wrap}.success{color:#047857}.nav{display:flex;gap:16px;margin-bottom:20px}