/* A small reading-focused layout, following Gophling's Jekyll documentation. */
:root {
  color-scheme: light;
  --ink: #171717;
  --muted: #626262;
  --link: #005bbf;
  --border: #dedede;
  font: 17px/1.7 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: #fafafa;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 1.5rem; }
body { margin: 0; }
a { color: var(--link); text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--link); outline-offset: 4px; }
header { border-bottom: 1px solid var(--border); background: #fff; }
header > nav, main, footer { max-width: 980px; margin: auto; padding: 1.5rem 2rem; }
header > nav { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand img { width: auto; height: 36px; max-width: 170px; object-fit: contain; }
.links { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; font-size: .9rem; }
.links a { display: inline-flex; align-items: center; min-height: 28px; }
main { min-height: 65vh; padding-top: 2rem; padding-bottom: 4rem; }
article { padding-top: 2rem; }
h1, h2, h3, h4 { line-height: 1.25; letter-spacing: -.025em; overflow-wrap: anywhere; }
h1 { font-size: clamp(2rem, 5vw, 2.8rem); margin: 0 0 1.25rem; }
h2 { margin-top: 2.5rem; font-size: 1.45rem; }
h3 { margin-top: 2rem; font-size: 1.15rem; }
h4 { margin-top: 1.75rem; font-size: 1rem; }
p, ul, ol { max-width: 78ch; }
p, li { overflow-wrap: anywhere; }
li + li { margin-top: .35rem; }
code { font: .88em/1.5 ui-monospace, SFMono-Regular, Consolas, monospace; }
:not(pre) > code { background: #eeeeee; border-radius: 4px; padding: .12em .3em; overflow-wrap: anywhere; }
pre { max-width: 100%; overflow-x: auto; padding: 1.2rem 1.4rem; border: 1px solid var(--border); border-radius: 8px; background: #f1f1f1; }
pre code { white-space: pre; }
.highlight pre { margin: 0; }
.highlight { margin: 1.25rem 0; }
/* Syntax emphasis stays neutral: meaning does not depend on a color legend. */
.highlight .c, .highlight .c1, .highlight .cm { color: #626262; }
.highlight .k, .highlight .kd, .highlight .kn, .highlight .nt { font-weight: 650; }
blockquote { margin-left: 0; padding: .1rem 1.2rem; border-left: 3px solid var(--link); color: var(--muted); }
table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; margin: 1.5rem 0; font-size: .92rem; }
th, td { padding: .8rem 1rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--border); }
th { background: #f1f1f1; font-weight: 650; }
img { max-width: 100%; height: auto; }
hr { border: 0; border-top: 1px solid var(--border); margin: 2rem 0; }
.page-navigation { border-bottom: 1px solid var(--border); padding-bottom: 1rem; }
.page-navigation summary { cursor: pointer; width: fit-content; min-height: 28px; font-size: .9rem; color: var(--muted); }
.page-navigation nav { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .4rem 1.5rem; padding: 1rem 0 .25rem; }
.page-navigation nav a { min-height: 28px; font-size: .9rem; }
.page-navigation a[aria-current="page"] { color: var(--ink); font-weight: 650; text-decoration-thickness: 2px; }
.contents { margin: 1.5rem 0; }
.contents summary { cursor: pointer; width: fit-content; color: var(--muted); min-height: 28px; font-size: .9rem; }
.contents ul { font-size: .9rem; }
footer { display: flex; justify-content: space-between; gap: 1rem; border-top: 1px solid var(--border); color: var(--muted); font-size: .85rem; }
.skip { position: absolute; left: 1rem; top: -5rem; z-index: 1; background: #fff; padding: .5rem 1rem; }
.skip:focus { top: 1rem; }
@media (max-width: 600px) {
  header > nav, main, footer { padding-left: 1.15rem; padding-right: 1.15rem; }
  header > nav { align-items: flex-start; flex-direction: column; gap: .75rem; }
  .links { gap: .25rem 1.2rem; }
  article { padding-top: 1.5rem; }
  th, td { padding: .6rem; }
  .page-navigation nav { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .5rem 1rem; }
  footer { flex-direction: column; }
}
@media (max-width: 600px), (pointer: coarse) {
  .links a, .page-navigation nav a { min-height: 44px; display: inline-flex; align-items: center; }
  .page-navigation summary, .contents summary { min-height: 44px; padding: .4rem 0; }
}
@media print {
  header, footer, .skip, .page-navigation { display: none; }
  :root { background: #fff; font-size: 11pt; }
  main, article { max-width: none; padding: 0; }
  pre, table { overflow: visible; }
  pre { white-space: pre-wrap; }
}