:root{--bg:#0f1115;--surface:#181b22;--surface-2:#21252e;--border:#2a2f3a;--text:#e5e7eb;--text-muted:#9ca3af;--primary:#4f46e5;--primary-hover:#6366f1;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--info:#3b82f6;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{min-height:100vh;margin:0}#root{min-height:100vh}a{color:var(--primary-hover);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{color:#fff;margin:0 0 12px;font-weight:600}h1{font-size:28px}h2{font-size:22px}h3{font-size:18px}p{margin:0 0 8px;line-height:1.5}.container{max-width:880px;margin:0 auto;padding:32px 20px}.header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.header .brand{color:#fff;font-size:18px;font-weight:700}.card{background:var(--surface);border:1px solid var(--border);border-radius:10px;margin-bottom:20px;padding:24px}.card h2{font-size:20px}.subtle{color:var(--text-muted);font-size:14px}.row{border-bottom:1px dashed var(--border);justify-content:space-between;align-items:center;padding:8px 0;display:flex}.row:last-child{border-bottom:none}.row .label{color:var(--text-muted)}.row .value{color:#fff;font-variant-numeric:tabular-nums}.row.total .label{color:#fff;font-weight:600}.row.total .value{font-size:18px;font-weight:700}label{color:var(--text-muted);margin-bottom:6px;font-size:13px;display:block}input,select,textarea{background:var(--surface-2);border:1px solid var(--border);width:100%;color:var(--text);border-radius:8px;outline:none;padding:10px 12px;font-family:inherit;font-size:15px;transition:border-color .15s}input:focus,select:focus{border-color:var(--primary)}.field{margin-bottom:14px}.fields-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.btn{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:12px 18px;font-family:inherit;font-size:15px;font-weight:600;transition:background .15s,opacity .15s;display:inline-flex}.btn:hover:not(:disabled){background:var(--primary-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.btn-secondary{background:var(--surface-2);border:1px solid var(--border)}.btn.btn-secondary:hover:not(:disabled){background:var(--border)}.btn.btn-full{width:100%}.btn.btn-success{background:var(--success)}.btn.btn-link{color:var(--primary-hover);background:0 0;padding:4px 8px;font-weight:500}.tabs{border-bottom:1px solid var(--border);gap:0;margin-bottom:20px;display:flex}.tab{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;flex:1;padding:12px;font-family:inherit;font-size:15px;font-weight:500}.tab.active{color:#fff;border-bottom-color:var(--primary)}.tab:hover:not(.active){color:var(--text)}.badge{text-transform:uppercase;letter-spacing:.4px;border-radius:999px;padding:4px 10px;font-size:12px;font-weight:600;display:inline-block}.badge.success{color:var(--success);background:#10b98126}.badge.warning{color:var(--warning);background:#f59e0b26}.badge.danger{color:var(--danger);background:#ef444426}.badge.info{color:var(--info);background:#3b82f626}.alert{border:1px solid;border-radius:8px;margin-bottom:14px;padding:12px 14px}.alert.error{color:#fca5a5;background:#ef44441a;border-color:#ef444466}.alert.success{color:#6ee7b7;background:#10b9811a;border-color:#10b98166}.alert.info{color:#93c5fd;background:#3b82f61a;border-color:#3b82f666}.alert.warning{color:#fcd34d;background:#f59e0b1a;border-color:#f59e0b66}.qr-container{background:#fff;border-radius:10px;flex-direction:column;align-items:center;max-width:280px;margin:16px auto;padding:16px;display:flex}.qr-container img{width:240px;height:240px;display:block}.copy-box{gap:8px;margin-top:12px;display:flex}.copy-box input{font-family:ui-monospace,Consolas,monospace;font-size:12px}.spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:18px;height:18px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.connected{color:#6ee7b7;background:#10b9811a;border:1px solid #10b9814d;border-radius:8px;align-items:center;gap:10px;padding:12px;font-size:14px;display:flex}.button-group{gap:12px;margin-top:16px;display:flex}@media (width<=600px){.fields-grid{grid-template-columns:1fr}.container{padding:20px 14px}}