:root {
  --ink: #1c1b1e;
  --muted: #5b5b62;
  --rule: #e6e4e9;
  --accent: #f4742a;
  --bg: #ffffff;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.65 ui-serif, Georgia, "Times New Roman", serif;
  padding: 0 20px;
}
.wrap { max-width: 720px; margin: 0 auto; }
header.site {
  display: flex; align-items: center; gap: 12px;
  padding: 28px 0 18px; border-bottom: 1px solid var(--rule);
}
header.site .mark {
  width: 34px; height: 34px; border-radius: 8px;
  background: linear-gradient(160deg, #ff913f, #dd5e14);
  flex: 0 0 auto;
}
header.site .title { font-weight: 700; letter-spacing: .2px; font-family: ui-sans-serif, -apple-system, system-ui, sans-serif; }
header.site .title small { display:block; color: var(--muted); font-weight: 400; font-size: 13px; }
main { padding: 26px 0 8px; }
h1 { font-size: 30px; line-height: 1.2; margin: .2em 0 .1em; }
h2 { font-size: 21px; margin: 1.6em 0 .4em; }
h3 { font-size: 17px; margin: 1.3em 0 .3em; }
.meta { color: var(--muted); font-size: 14px; font-family: ui-sans-serif, system-ui, sans-serif; margin: 0 0 1.2em; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { padding-left: 1.2em; }
li { margin: .3em 0; }
.lede { font-size: 19px; color: #333; }
.card { border: 1px solid var(--rule); border-radius: 12px; padding: 18px 20px; margin: 18px 0; }
nav.links { display: flex; gap: 18px; flex-wrap: wrap; font-family: ui-sans-serif, system-ui, sans-serif; font-size: 15px; margin-top: 6px; }
footer { margin: 40px 0 50px; padding-top: 18px; border-top: 1px solid var(--rule); color: var(--muted); font-size: 14px; font-family: ui-sans-serif, system-ui, sans-serif; }
code { background: #f3f2f4; padding: 1px 5px; border-radius: 5px; font-size: .9em; }
@media (max-width: 480px) { body { font-size: 16px; } h1 { font-size: 26px; } }