:root {
  --accent: #6a5ae0;
  --accent-2: #5243c6;
  --bg: #f4f2ff;
  --card: #ffffff;
  --text: #1c1a2e;
  --muted: #6b6880;
  --code-bg: #efedfb;
}
@media (prefers-color-scheme: dark) {
  :root {
    --accent: #8576f2;
    --accent-2: #6a5ae0;
    --bg: #12111c;
    --card: #1d1b2b;
    --text: #f2f0ff;
    --muted: #a19dbb;
    --code-bg: #2a2740;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", "Rubik", "Assistant", Arial, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}
main {
  width: 100%;
  max-width: 420px;
  background: var(--card);
  border-radius: 24px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 12px 40px rgba(82, 67, 198, 0.15);
}
.icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  box-shadow: 0 8px 20px rgba(82, 67, 198, 0.35);
}
h1 { font-size: 26px; margin: 18px 0 6px; }
p { margin: 0 0 16px; color: var(--muted); }
.code {
  font: 600 20px/1.4 ui-monospace, "SF Mono", Menlo, monospace;
  direction: ltr;
  background: var(--code-bg);
  border-radius: 12px;
  padding: 14px;
  margin: 8px 0 20px;
  word-break: break-all;
  user-select: all;
}
.button {
  display: block;
  width: 100%;
  border: 0;
  border-radius: 14px;
  padding: 15px;
  margin-bottom: 10px;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  background: linear-gradient(var(--accent), var(--accent-2));
  color: #fff;
}
.button.secondary { background: var(--code-bg); color: var(--accent); }
ol { text-align: start; color: var(--muted); padding-inline-start: 20px; margin: 20px 0 0; }
li { margin-bottom: 6px; }
.hidden { display: none; }