:root {
  --bg: #17111f;
  --surface: #221a2d;
  --text: #f4eef7;
  --muted: #b9adc4;
  --accent: #ff3d6e;
  --accent-text: #ffffff;
  --line: #3a2f47;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #fbf8fc;
    --surface: #ffffff;
    --text: #1d1524;
    --muted: #5e5268;
    --line: #e6dfea;
    color-scheme: light;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "Rubik", Arial, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
a { color: var(--accent); }
header.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
header.brand img { width: 48px; height: 48px; border-radius: 12px; }
header.brand a { color: var(--text); text-decoration: none; font-weight: 700; font-size: 20px; }
h1 { font-size: 30px; line-height: 1.25; margin: 0 0 8px; }
h2 { font-size: 21px; margin: 32px 0 8px; }
.muted { color: var(--muted); }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  margin: 20px 0;
}
.button {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-text);
  text-decoration: none;
  font-weight: 600;
  border: 0;
  border-radius: 999px;
  padding: 12px 22px;
  margin: 6px 0;
  font-size: 17px;
  cursor: pointer;
}
.button.secondary { background: transparent; color: var(--text); border: 1px solid var(--line); }
.code {
  font: 600 28px/1.2 ui-monospace, Menlo, monospace;
  letter-spacing: 2px;
  direction: ltr;
  unicode-bidi: isolate;
}
article + article { border-top: 1px solid var(--line); margin-top: 48px; padding-top: 16px; }
footer { margin-top: 48px; font-size: 14px; }
footer a { color: var(--muted); margin-inline-end: 16px; }