:root {
  --yellow: #ffd84d;
  --orange: #ff9d1c;
  --ink: #1f2147;
  --red: #ff5a5f;
  --paper: #fdfcf7;
  --line: #ddd6f4;
  --muted: #55577a;
}
* { box-sizing: border-box; }
html { background: var(--paper); }
body {
  margin: 0;
  color: var(--ink);
  font: 17px/1.6 ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", sans-serif;
  background-color: var(--paper);
  background-image: repeating-linear-gradient(0deg, transparent 0 38.5px, var(--line) 38.5px 40px);
}
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 48px; }
header.hero { text-align: center; padding: 24px 0 8px; }
header.hero img.logo { width: min(520px, 100%); height: auto; }
.banner { width: 100%; height: auto; border-radius: 16px; border: 3px solid var(--ink); background: var(--paper); margin: 16px 0 8px; }
.card { background: var(--paper); border: 3px solid var(--ink); border-radius: 16px; padding: 20px 24px; margin: 20px 0; }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 12px; }
h2 { font-size: 21px; margin: 24px 0 8px; }
h2.title { font-size: 28px; line-height: 1.2; margin: 0 0 12px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
p, li { color: var(--ink); }
.lead { font-size: 19px; }
a { color: var(--ink); text-decoration-color: var(--orange); text-decoration-thickness: 3px; text-underline-offset: 3px; }
a.button {
  display: inline-block; background: var(--red); color: #fff; text-decoration: none; font-weight: 700;
  padding: 12px 22px; border-radius: 999px; border: 3px solid var(--ink); margin-top: 8px;
}
a.button:hover { background: var(--orange); color: var(--ink); }
ul.themes { padding-left: 20px; }
footer { max-width: 760px; margin: 0 auto; padding: 0 16px 32px; font-size: 14px; color: var(--muted); text-align: center; }
footer a { color: var(--muted); }
.back { display: inline-block; margin-bottom: 8px; font-size: 15px; }
.card > h2:first-child { margin-top: 0; }