:root {
  color-scheme: light dark;
  --text: #1c1c1e; --muted: #6e6e73; --bg: #ffffff; --card: #f5f5f7; --line: #e5e5ea;
  --accent: #0a6cff; --accent-text: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root { --text: #f2f2f7; --muted: #98989f; --bg: #000000; --card: #1c1c1e; --line: #2c2c2e; --accent: #4da3ff; --accent-text: #00122b; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.6;
}
a { color: var(--accent); }
header.site {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 24px;
  max-width: 760px; margin: 0 auto; padding: 18px 20px; border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 1.1em; }
.brand img { border-radius: 22%; display: block; }
header.site nav { display: flex; flex-wrap: wrap; gap: 4px 18px; }
header.site nav a { color: var(--muted); text-decoration: none; font-size: 0.95em; }
header.site nav a:hover, header.site nav a[aria-current] { color: var(--text); }
main { max-width: 760px; margin: 0 auto; padding: 24px 20px 56px; }
h1 { font-size: 1.8em; line-height: 1.2; margin: 0.4em 0 0.2em; }
h2 { font-size: 1.25em; margin: 2em 0 0.4em; }
h3 { font-size: 0.8em; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); margin: 1.4em 0 0.3em; }
ul { padding-left: 1.2em; margin: 0.4em 0; }
li { margin: 0.35em 0; }
.muted { color: var(--muted); }
.updated { color: var(--muted); font-size: 0.9em; margin-top: 4px; }
code { background: rgba(127,127,127,0.15); padding: 0.1em 0.35em; border-radius: 4px; }
.hero { text-align: center; padding: 28px 0 8px; }
.hero img.icon { width: 112px; height: 112px; border-radius: 22%; box-shadow: 0 8px 30px rgba(10,108,255,0.25); }
.hero h1 { font-size: 2.2em; margin-bottom: 0.1em; }
.hero .sub { color: var(--muted); font-size: 1.1em; margin: 0 auto 16px; max-width: 34em; }
.cta { display: inline-block; margin: 6px 6px 0; padding: 10px 18px; background: var(--accent); color: var(--accent-text); text-decoration: none; border-radius: 10px; font-weight: 600; }
.cta.ghost { background: transparent; color: var(--accent); border: 1px solid var(--line); }
.features { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; margin-top: 16px; }
.features li { background: var(--card); border-radius: 14px; padding: 14px 16px; margin: 0; }
.features strong { display: block; margin-bottom: 2px; }
.shots {
  display: flex; gap: 12px; margin: 20px 0; padding: 4px 2px 10px; justify-content: safe center;
  overflow-x: auto; scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.shots img {
  flex: 0 0 auto; height: 280px; width: auto; border-radius: 14px; border: 1px solid var(--line);
  display: block; scroll-snap-align: center;
}
.toc { background: var(--card); border-radius: 14px; padding: 6px 20px; margin: 18px 0; }
.toc ol { padding-left: 1.2em; }
section.topic { scroll-margin-top: 12px; }
footer.site { max-width: 760px; margin: 0 auto; padding: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9em; text-align: center; }
footer.site a { color: var(--muted); }
.toc li .muted::before { content: "· "; }