:root {
  --bg: #fbfbfa;
  --fg: #1d1f22;
  --muted: #6b7076;
  --border: #e4e4e1;
  --accent: #0a8a5c;
  --code-bg: #f2f2ef;
  --inline-code: #ecece8;
  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --fg: #d9dde2;
    --muted: #8a929b;
    --border: #262b31;
    --accent: #3ddc97;
    --code-bg: #0b0d10;
    --inline-code: #1c2127;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0 auto;
  max-width: 76ch;
  padding: 0 1.25rem;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.7 var(--sans);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
img { max-width: 100%; height: auto; border-radius: 6px; }

.skip { position: absolute; left: -999px; }
.skip:focus { left: 1rem; top: 1rem; background: var(--bg); padding: .25rem .5rem; }

/* header / footer */
.site-header {
  display: flex; flex-wrap: wrap; gap: 1rem;
  justify-content: space-between; align-items: flex-end;
  padding: 2.5rem 0 1.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
}
.wordmark { font: 700 1.4rem var(--mono); color: var(--fg); }
.wordmark:hover { text-decoration: none; }
.cursor { color: var(--accent); animation: blink 1.2s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .cursor { animation: none; } }
.tagline { margin: .2rem 0 0; color: var(--muted); font-size: .9rem; }
.site-header nav { display: flex; gap: 1rem; font: .85rem var(--mono); }
.site-header nav a { color: var(--muted); }
.site-header nav a:hover { color: var(--accent); }
.site-footer {
  display: flex; flex-wrap: wrap; gap: .5rem; justify-content: space-between;
  margin-top: 4rem; padding: 1.5rem 0 3rem;
  border-top: 1px solid var(--border);
  color: var(--muted); font: .8rem var(--mono);
}
.site-footer a { color: var(--muted); }

/* home */
.group { margin-bottom: 2.5rem; }
.group-title {
  font: 600 .8rem var(--mono); text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted); margin: 0 0 .75rem;
}
.post-list { list-style: none; margin: 0; padding: 0; }
.post-list li {
  display: grid; grid-template-columns: 7.5rem 1fr; gap: .25rem 1rem;
  padding: .6rem 0; border-bottom: 1px dashed var(--border);
}
.post-list time { font: .85rem/1.9 var(--mono); color: var(--muted); }
.post-link { color: var(--fg); font-weight: 600; border-bottom: 1px dashed transparent; }
.post-link:hover { color: var(--accent); border-bottom-color: var(--accent); text-decoration: none; }
.excerpt { margin: .15rem 0 0; color: var(--muted); font-size: .9rem; line-height: 1.5; }
.empty { color: var(--muted); font-family: var(--mono); }
@media (max-width: 560px) {
  .post-list li { grid-template-columns: 1fr; }
  .post-list time { line-height: 1.4; }
}

/* post */
.post-header h1 { font-size: 2rem; line-height: 1.25; margin: 0 0 .5rem; letter-spacing: -.01em; }
.meta { margin: 0 0 1.75rem; color: var(--muted); font: .85rem var(--mono); }
.toc {
  border: 1px solid var(--border); border-radius: 6px;
  padding: .6rem 1rem; margin-bottom: 2rem; font-size: .92rem;
}
.toc summary { cursor: pointer; font: 600 .8rem var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.toc ul { margin: .3rem 0; padding-left: 1.1rem; }
.toc > .toc > ul { padding-left: .2rem; list-style: none; }
.toc a { color: var(--fg); }
.toc a:hover { color: var(--accent); }

.prose h2, .prose h3, .prose h4 { line-height: 1.3; margin: 2.25rem 0 .75rem; scroll-margin-top: 1rem; }
.prose h2 { font-size: 1.45rem; padding-bottom: .3rem; border-bottom: 1px solid var(--border); }
.prose h3 { font-size: 1.15rem; }
.prose .anchor { margin-left: .4rem; color: var(--muted); opacity: 0; font-weight: 400; }
.prose :is(h2, h3, h4):hover .anchor { opacity: 1; }
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 2.5rem 0; }
.prose blockquote {
  margin: 1.5rem 0; padding: .5rem 1rem;
  border-left: 3px solid var(--accent); background: var(--inline-code);
  border-radius: 0 6px 6px 0;
}
.prose blockquote p { margin: .4rem 0; }
.prose li { margin: .25rem 0; }

code { font-family: var(--mono); font-size: .86em; }
:not(pre) > code { background: var(--inline-code); padding: .1em .35em; border-radius: 4px; }
pre {
  margin: 0; padding: 1rem 1.1rem; overflow-x: auto;
  font-size: .85rem; line-height: 1.55; tab-size: 4;
}
.codehilite, .prose > pre {
  position: relative; margin: 1.25rem 0;
  background: var(--code-bg) !important;
  border: 1px solid var(--border); border-radius: 6px;
}
.codehilite pre { background: transparent; }
.copy {
  position: absolute; top: .4rem; right: .4rem;
  font: .7rem var(--mono); color: var(--muted);
  background: var(--bg); border: 1px solid var(--border); border-radius: 4px;
  padding: .15rem .5rem; cursor: pointer; opacity: 0; transition: opacity .15s;
}
.codehilite:hover .copy, .copy:focus { opacity: 1; }

.table-wrap { overflow-x: auto; margin: 1.25rem 0; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; }
th, td { border: 1px solid var(--border); padding: .45rem .7rem; text-align: left; vertical-align: top; }
th { background: var(--inline-code); }
tbody tr:nth-child(even) { background: color-mix(in srgb, var(--inline-code) 45%, transparent); }

.pager {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
  margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--border);
}
.pager a { color: var(--fg); font-weight: 600; line-height: 1.4; }
.pager a:hover { color: var(--accent); text-decoration: none; }
.pager span { display: block; font: 400 .8rem var(--mono); color: var(--muted); margin-bottom: .25rem; }
.pager .next { text-align: right; grid-column: 2; }
@media (max-width: 560px) {
  body { font-size: 16px; }
  .post-header h1 { font-size: 1.6rem; }
  .pager { grid-template-columns: 1fr; }
  .pager .next { grid-column: 1; text-align: left; }
}