:root {
  --bg: #f7f7f5;
  --card: #ffffff;
  --text: #1c1d21;
  --muted: #5d6170;
  --line: #e4e4e0;
  --accent: #3b5bdb;
  --accent-soft: #e8edff;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111215;
    --card: #1a1b20;
    --text: #ececef;
    --muted: #a0a3ad;
    --line: #2b2d34;
    --accent: #8fa6ff;
    --accent-soft: #232a45;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent); text-underline-offset: 2px; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header.site {
  border-bottom: 1px solid var(--line);
  background: var(--card);
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 18px; color: var(--text); text-decoration: none;
}
.brand .dot {
  width: 22px; height: 22px; border-radius: 50%;
  border: 4px solid var(--accent);
}
header.site nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 15px; }
header.site nav a:hover { color: var(--text); }
main { padding: 40px 0 64px; }
h1 { font-size: 32px; line-height: 1.2; margin: 0 0 8px; letter-spacing: -0.01em; }
h2 { font-size: 21px; margin: 36px 0 8px; }
h3 { font-size: 17px; margin: 24px 0 6px; }
p, ul, ol, table { margin: 0 0 14px; }
ul, ol { padding-left: 22px; }
li { margin-bottom: 6px; }
.lead { font-size: 18px; color: var(--muted); margin-bottom: 28px; }
.meta { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.summary {
  background: var(--accent-soft); border-radius: 14px; padding: 18px 22px; margin: 0 0 28px;
}
.summary ul { margin: 0; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  padding: 24px; margin: 0 0 18px;
}
.card h2 { margin-top: 0; }
.app { display: flex; gap: 18px; align-items: flex-start; }
.app-icon {
  flex: none; width: 64px; height: 64px; border-radius: 16px;
  background: linear-gradient(135deg, #5b7cfa, #3b5bdb);
  color: #fff; font-weight: 800; font-size: 30px;
  display: flex; align-items: center; justify-content: center;
}
.links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.links a {
  display: inline-block; padding: 7px 14px; border-radius: 999px;
  background: var(--accent-soft); text-decoration: none; font-size: 15px;
}
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 9px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
footer.site { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; padding: 22px 0 40px; }
footer.site a { color: var(--muted); }
@media (max-width: 560px) {
  h1 { font-size: 26px; }
  .app { flex-direction: column; }
  table, thead, tbody, tr, th, td { display: block; }
  thead { display: none; }
  td { border-bottom: none; padding: 4px 0; }
  tr { border-bottom: 1px solid var(--line); padding: 8px 0; }
}