:root { color-scheme: dark; }
html,body{height:100%}
body.qmt-bg{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial;
  background: radial-gradient(120% 120% at 30% 20%, #2a1b6a 0%, #0b1020 60%) fixed;
  color:#e5e7eb;
}
.card{background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.12); border-radius:18px; box-shadow:0 20px 60px rgba(0,0,0,.35)}
.btn-primary{background:linear-gradient(135deg,#6c5ce7,#ff3cac);border:0;color:#fff;font-weight:800;border-radius:12px;padding:10px 16px}