body{font-family:Arial,sans-serif;background:#f4f7fb;margin:0;color:#14213d}main{max-width:900px;margin:10vh auto;display:grid;grid-template-columns:1fr 420px;gap:60px;align-items:center;padding:20px}.card{background:#fff;padding:28px;border-radius:18px;box-shadow:0 20px 60px #0002}.tabs{display:flex;gap:8px;margin-bottom:20px}.tabs button,form button{padding:12px;border:0;border-radius:9px;cursor:pointer}.tabs button{background:#eef2f7}.tabs button.active{background:#1f63d4;color:#fff}[hidden]{display:none!important}form{display:grid;gap:12px}input{padding:13px;border:1px solid #ccd5e0;border-radius:9px}form button{background:#1f63d4;color:#fff;font-weight:bold}#msg{margin:12px 0;color:#a22}@media(max-width:760px){main{grid-template-columns:1fr;margin:2vh auto}}