:root {
  --bg: #F6F8FC; --card: #FFFFFF; --ink: #14213D; --muted: #55607A; --blue: #1F5FD6; --blue-ink: #174AA8;
  --line: #E1E7F2; --soft: #EAF1FE;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
a { color: var(--blue-ink); text-underline-offset: 3px; }
a:hover { color: var(--blue); }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }
header.site { padding: 22px 0; }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 800; font-size: 21px; letter-spacing: -0.01em; }
nav a { margin-left: 20px; font-weight: 600; text-decoration: none; color: var(--muted); font-size: 15px; }
nav a:first-child { margin-left: 0; }
nav a:hover, nav a[aria-current="page"] { color: var(--blue-ink); }
main { padding: 8px 0 56px; }
h1 { font-size: clamp(32px, 6vw, 46px); line-height: 1.12; margin: 24px 0 12px; letter-spacing: -0.02em; }
h2 { font-size: 24px; line-height: 1.3; margin: 48px 0 12px; letter-spacing: -0.01em; }
h3 { font-size: 19px; margin: 0 0 6px; }
p, li { max-width: 68ch; }
.lede { font-size: 20px; color: var(--muted); margin-top: 0; max-width: 60ch; }
.hero { padding: 36px 0 8px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 22px 24px; margin: 16px 0; }
.app { display: flex; gap: 18px; align-items: flex-start; }
.app img { width: 72px; height: 72px; border-radius: 18px; flex: none; }
.app p { margin: 4px 0 10px; color: var(--muted); }
.pill { display: inline-block; background: var(--soft); color: var(--blue-ink); font-size: 13px; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.grid .card { margin: 0; }
.grid .card p { margin: 0; color: var(--muted); font-size: 16px; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 8px 20px; margin: 0; }
dt { color: var(--muted); font-weight: 600; }
dd { margin: 0; }
footer.site { border-top: 1px solid var(--line); padding: 22px 0 40px; color: var(--muted); font-size: 14px; }
footer.site a { color: var(--muted); }
@media (max-width: 520px) { body { font-size: 16px; } nav a { margin-left: 14px; } .app { flex-direction: column; } dl { grid-template-columns: 1fr; gap: 2px; } dd { margin-bottom: 10px; } }