:root{color-scheme:dark;--brand:#00a99d;--brand-2:#4dd7cf;--bg:#0d0f16;--panel:#161927;--border:#262a3b;--text:#e8eaf2;--muted:#8b91a8;--danger:#e5484d}body{margin:0;background:radial-gradient(1200px 600px at 70% -10%,rgba(0,169,157,.14),transparent 60%),var(--bg);color:var(--text);font-family:-apple-system,Segoe UI,Roboto,sans-serif}.brandbar{display:flex;align-items:center;gap:10px;padding:14px 18px}.brandbar .logo{width:26px;height:26px}button{background:var(--brand);border:none;color:#fff;font-weight:600;border-radius:9px;padding:11px;cursor:pointer}button.ghost{background:var(--panel);border:1px solid var(--border)}