:root {
  --sky: #2fbaff;
  --sky-deep: #1d8fe6;
  --ink: #2a1f5c;
  --ink-soft: #6a5f9a;
  --card: #ffffff;
  --card-edge: #d9d2f3;
  --purple: #8b5cf6;
  --purple-edge: #5f37c9;
  --field: #f1eefb;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 16px;
  background: linear-gradient(var(--sky), var(--sky-deep));
  color: var(--ink);
  font-family: "Fredoka", ui-rounded, "Arial Rounded MT Bold", system-ui, sans-serif;
  font-weight: 600;
  text-align: center;
}
main { width: 100%; max-width: 440px; }
h1 {
  margin: 0 0 20px;
  color: #fff;
  font-size: 44px;
  line-height: 1;
  text-shadow: 0 4px 0 rgba(42, 31, 92, 0.25);
}
.card {
  background: var(--card);
  border-radius: 32px;
  padding: 28px 24px;
  box-shadow: 0 8px 0 var(--card-edge);
}
.card p { margin: 0 0 14px; color: var(--ink-soft); text-wrap: balance; }
.code {
  margin: 4px 0 18px;
  color: var(--purple);
  font-size: 44px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 1px;
  overflow-wrap: anywhere;
}
button, .button {
  display: block;
  width: 100%;
  padding: 16px;
  border: 0;
  border-radius: 24px;
  background: var(--purple);
  box-shadow: 0 6px 0 var(--purple-edge);
  color: #fff;
  font: inherit;
  font-size: 20px;
  text-decoration: none;
  cursor: pointer;
}
button:active, .button:active { transform: translateY(4px); box-shadow: 0 2px 0 var(--purple-edge); }
button:focus-visible, .button:focus-visible { outline: 4px solid #fff; outline-offset: 3px; }
ol { margin: 22px 0 0; padding: 0 0 0 22px; color: var(--ink-soft); text-align: left; }
ol li { margin: 6px 0; }
.note { margin-top: 20px; color: #fff; font-size: 15px; opacity: 0.9; }