/* Quillmark Labs site. One stylesheet, no JavaScript. */
:root {
  --ink: #1d2433;
  --muted: #4b5568;
  --line: #d9dee7;
  --bg: #ffffff;
  --soft: #f4f6fa;
  --accent: #1f4fb4;
  --accent-ink: #ffffff;
  --max: 46rem;
}
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
}
.skip {
  position: absolute; left: -999px; top: 0;
  background: var(--ink); color: #fff; padding: .5rem 1rem; z-index: 10;
}
.skip:focus { left: 0; }
header.site, main, footer.site { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }
header.site { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem 1.5rem; padding-top: 1.25rem; padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; font-size: 1.15rem; color: var(--ink); text-decoration: none; }
nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; margin: 0; padding: 0; }
nav a { color: var(--muted); text-decoration: none; padding: .25rem 0; }
nav a:hover, nav a[aria-current="page"] { color: var(--ink); text-decoration: underline; }
main { padding-top: 2rem; padding-bottom: 3rem; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 .75rem; }
h2 { font-size: 1.35rem; line-height: 1.3; margin: 2.25rem 0 .5rem; }
h3 { font-size: 1.1rem; margin: 1.5rem 0 .35rem; }
p, ul, ol, dl { margin: 0 0 1rem; }
ul, ol { padding-left: 1.4rem; }
li { margin-bottom: .3rem; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 3px solid #f5a623; outline-offset: 2px; }
.lead { font-size: 1.15rem; color: var(--muted); }
.card { border: 1px solid var(--line); border-radius: 8px; padding: 1.25rem; background: var(--soft); margin: 1.5rem 0; }
.card h2, .card h3 { margin-top: 0; }
.button {
  display: inline-block; background: var(--accent); color: var(--accent-ink);
  padding: .6rem 1.1rem; border-radius: 6px; text-decoration: none; font-weight: 600;
}
.button:hover { background: #173d8c; }
table { border-collapse: collapse; width: 100%; margin: 0 0 1.25rem; }
th, td { text-align: left; vertical-align: top; padding: .5rem .6rem; border-bottom: 1px solid var(--line); }
th { background: var(--soft); }
.table-wrap { overflow-x: auto; }
dt { font-weight: 600; margin-top: 1rem; }
dd { margin: .2rem 0 0; }
code { background: var(--soft); padding: .1rem .3rem; border-radius: 4px; font-size: .92em; }
.meta { color: var(--muted); font-size: .95rem; }
footer.site { border-top: 1px solid var(--line); padding-top: 1.25rem; padding-bottom: 2rem; color: var(--muted); font-size: .95rem; }
footer.site ul { list-style: none; display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; padding: 0; margin: 0 0 .75rem; }
@media (max-width: 30rem) { h1 { font-size: 1.6rem; } }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }