:root {
  --gold: #f0c35a;
}
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(circle at 50% 15%, #2b3543, #151b24 45%, #0b0f14);
  font-family: Arial, sans-serif;
  color: #fff;
}
body {
  display: grid;
  place-items: center;
  padding: 18px;
}
.shell {
  width: min(1180px, 100%);
}
.frame {
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid #ffffff2e;
  box-shadow: 0 30px 80px #0009;
  background: #111;
}
canvas {
  display: block;
  width: 100%;
  aspect-ratio: 16/9;
  touch-action: none;
  cursor: crosshair;
}
.bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 4px 0;
  color: #ccc;
  font-size: 13px;
}
.brand {
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--gold);
}
button {
  border: 0;
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 900;
  background: linear-gradient(#f5d577, #c9972d);
  cursor: pointer;
}
@media (max-width: 700px) {
  body {
    padding: 8px;
  }
  .hint {
    display: none;
  }
}