:root{font-family:Inter,system-ui,Arial,sans-serif}body{margin:0;background:#0b1020;color:#e6ebff}.container{max-width:1100px;margin:0 auto;padding:24px}.card{background:#141c35;border:1px solid #243055;border-radius:12px;padding:16px;margin-top:16px}a{color:#8cb3ff}.topbar{margin-top:0;display:flex;justify-content:space-between;align-items:center}.topbar h1{margin:0}.layout{display:grid;grid-template-columns:240px 1fr;gap:16px;margin-top:16px}.sidebar{margin-top:0;height:fit-content;display:flex;flex-direction:column;gap:8px}.menuBtn{width:100%;text-align:left;background:#1d2850}.menuBtn.active{background:#3f6ef0}.content .card{margin-top:0}.row{display:flex;gap:10px}.col{display:flex;flex-direction:column;gap:10px}input,select{flex:1;padding:10px;border-radius:8px;border:1px solid #334;background:#0e1530;color:#fff}button{padding:10px 14px;border:0;border-radius:8px;background:#3f6ef0;color:#fff;cursor:pointer}button:disabled{opacity:.6;cursor:not-allowed}.warn{color:#ffd27d}.err{color:#ff9a9a}.muted{color:#a5b1d8}.balance{font-size:22px}.loginWrap{min-height:44px;margin-bottom:8px}.preview{margin-top:8px;max-width:100%;border-radius:10px;border:1px solid #2c3b66}@media (max-width: 900px){.layout{grid-template-columns:1fr}}