:root {
  --bg: #ECF0EE; --surface: #F8FAF9; --ink: #16201D; --muted: #5B6A65; --line: #CAD4D0;
  --accent: #2F4BDB; --accent-soft: #DCE2FB;
  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111513; --surface: #181E1B; --ink: #E3EAE6; --muted: #93A29C; --line: #2C3632; --accent: #8197FF; --accent-soft: #252D57; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--display); font-size: 17px; line-height: 1.65; }
a { color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.top { border-bottom: 1px solid var(--line); background: var(--surface); }
.top-in { max-width: 860px; margin: 0 auto; padding-inline: 20px; padding-block: 12px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 20px; }
.brand { font-weight: 800; font-stretch: 75%; font-size: 24px; text-decoration: none; color: var(--ink); letter-spacing: -0.01em; }
.brand span { color: var(--accent); }
.top nav { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 15px; font-weight: 600; }
.top nav a { color: var(--ink); text-decoration: none; }
.top nav a:hover { color: var(--accent); }
main { max-width: 720px; margin: 0 auto; padding-inline: 20px; padding-block: 36px 56px; }
main h1 { font-size: clamp(30px, 5.5vw, 42px); font-weight: 800; font-stretch: 80%; line-height: 1.1; margin: 0 0 12px; text-wrap: balance; }
main .lead { font-size: 19px; color: var(--muted); margin: 0 0 28px; }
main h2 { font-size: 23px; font-weight: 700; font-stretch: 85%; margin: 36px 0 8px; text-wrap: balance; }
main h3 { font-size: 18px; margin: 24px 0 6px; }
main p, main li { max-width: 65ch; }
main ul, main ol { padding-left: 22px; }
main li + li { margin-top: 4px; }
kbd, code { font-family: var(--mono); font-size: .85em; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 4px; padding: 0 5px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
.tbl { overflow-x: auto; margin: 16px 0; }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--line); }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); }
td.n { font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
.cta { display: inline-block; margin-top: 28px; background: var(--accent); color: var(--surface); text-decoration: none; font-weight: 700; padding: 10px 18px; border-radius: 8px; }
.box { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 16px 20px; margin: 20px 0; }
.meta { color: var(--muted); font-size: 14px; }
.cards { list-style: none; padding: 0; display: grid; gap: 12px; }
.cards li { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 16px 20px; margin: 0; }
.cards a { font-weight: 700; font-size: 19px; text-decoration: none; }
.cards p { margin: 4px 0 0; color: var(--muted); font-size: 15px; }
footer.site { border-top: 1px solid var(--line); }
.foot-in { max-width: 860px; margin: 0 auto; padding-inline: 20px; padding-block: 20px 28px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px; font-size: 14px; color: var(--muted); }
.foot-in nav { display: flex; flex-wrap: wrap; gap: 6px 16px; }
.foot-in a { color: var(--muted); }