.demo-topbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;background:#060a12;color:#93c5fd;padding:10px 20px;font-size:13px;border-bottom:1px solid #1e293b;font-family:'Plus Jakarta Sans',system-ui,sans-serif}
.demo-topbar a{color:#60a5fa;text-decoration:none;font-weight:500}
.demo-topbar a:hover{text-decoration:underline}
.demo-lang-switch{display:flex;gap:6px;margin-left:auto}
.demo-lang-switch button{background:#1e293b;border:1px solid #334155;color:#94a3b8;padding:5px 12px;border-radius:8px;cursor:pointer;font-size:12px;font-weight:600}
.demo-lang-switch button.active{background:#3b82f6;color:#fff;border-color:#3b82f6}