:root{
  --bg:#0b1020;
  --panel:#121a33;
  --text:#e8ecff;
  --muted:#aab3e6;
  --border:rgba(255,255,255,.12);
}

*{ box-sizing:border-box; }

body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, "Noto Sans Thai", sans-serif;
  background: radial-gradient(1200px 700px at 50% 0%, #18224a 0%, var(--bg) 60%);
  color:var(--text);
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:20px;
}

.wrap{
  width:min(980px, 100%);
  display:flex;
  flex-direction:column;
  gap:14px;
}

.topbar{
  background:rgba(18,26,51,.75);
  border:1px solid var(--border);
  border-radius:14px;
  padding:12px 14px;
  backdrop-filter: blur(8px);
}

.title{
  font-weight:800;
  letter-spacing:.2px;
  font-size:18px;
}

.hint{
  margin-top:6px;
  color:var(--muted);
  font-size:13px;
}

canvas{
  width:100%;
  height:auto;
  image-rendering: pixelated;
  background: #0a0f1f;
  border:1px solid var(--border);
  border-radius:14px;
  display:block;
}

.footer{
  color:var(--muted);
  font-size:13px;
  background:rgba(18,26,51,.55);
  border:1px solid var(--border);
  border-radius:14px;
  padding:10px 14px;
}

code{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  color:#d7dcff;
}