body { font-family: Arial, sans-serif; background:#f6f7fb; margin:0; }
.wrap { max-width: 980px; margin: 24px auto; padding: 0 12px; }
.card { background:#fff; border-radius:12px; padding:16px; margin: 12px 0; box-shadow: 0 6px 18px rgba(0,0,0,.06); }
input { width:100%; padding:10px; border:1px solid #ddd; border-radius:8px; margin:6px 0 12px; }
button { padding:10px 12px; border:0; border-radius:8px; cursor:pointer; background:#1f6feb; color:#fff; }
button.secondary { background:#555; }
.row { display:flex; gap:10px; flex-wrap:wrap; }
pre { background:#0b1020; color:#d7e2ff; padding:12px; border-radius:10px; overflow:auto; }
h1,h2 { margin: 0 0 10px; }
label { font-size: 12px; color:#333; }