:root{color-scheme:light}*{box-sizing:border-box}body{margin:0;font-family:IBM Plex Sans,Segoe UI,sans-serif;background:linear-gradient(160deg,#f4f6f8,#ffffff 60%);color:#1c2430}a{color:#0c58cc}main{max-width:980px;margin:0 auto;padding:40px 20px}.card{background:#ffffff;border:1px solid #d9e0e8;border-radius:12px;padding:20px;box-shadow:0 6px 24px rgba(17,34,68,.05)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));grid-gap:12px;gap:12px}label{display:block;font-size:14px;margin-bottom:6px}input{width:100%;padding:10px;border:1px solid #b9c6d6;border-radius:8px}button{padding:10px 14px;border:none;border-radius:8px;background:#0f62fe;color:#fff;font-weight:600;cursor:pointer}button.secondary{background:#294057}.row{display:flex;gap:10px;align-items:center}.status{margin-top:12px;padding:10px;border-radius:8px;font-size:14px}.status.ok{background:#e8f7ee;color:#1f6c3f}.status.error{background:#fdecec;color:#8a2331}