/* Chancy's blog — typography first, no framework. */

:root {
  --bg: #fbfaf7;
  --fg: #1c1b19;
  --muted: #6d6a64;
  --line: #e4e1da;
  --accent: #b4451f;
  --code-bg: #f1efe9;
  --max: 42rem;
  --serif: Georgia, "Iowan Old Style", "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", serif;
  --sans: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14150f;
    --fg: #e6e4dc;
    --muted: #9a978d;
    --line: #2b2d26;
    --accent: #e2793f;
    --code-bg: #1d1f18;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
  max-width: calc(var(--max) + 6rem);
  background: var(--bg);
  color: var(--fg);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.78;
  text-rendering: optimizeLegibility;
}

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--fg); color: var(--bg); padding: .5rem .75rem; z-index: 9;
}
.skip:focus { left: .5rem; }

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent); }
a.ext::after { content: " ↗"; font-size: .8em; color: var(--muted); }

/* header ------------------------------------------------------------ */

.site-head {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: .5rem 1.5rem;
  padding: 2rem 0 1rem; border-bottom: 1px solid var(--line); margin-bottom: 2.5rem;
}
.brand { text-decoration: none; margin-right: auto; }
.brand-name { font-weight: 700; font-size: 1.15rem; letter-spacing: .01em; }
.brand-sub { display: block; font-family: var(--sans); font-size: .75rem; color: var(--muted); letter-spacing: .04em; }
.site-head nav {
  display: flex; flex-wrap: wrap; gap: .35rem 1rem; align-items: baseline;
  font-family: var(--sans); font-size: .82rem;
}
.site-head nav a { text-decoration: none; color: var(--muted); }
.site-head nav a:hover, .site-head nav a.on { color: var(--accent); }
.nav-tags { display: flex; gap: .6rem; }
.nav-tags::before { content: "·"; color: var(--line); }
.rss { border: 1px solid var(--line); padding: .1rem .4rem; border-radius: 3px; }

/* listing ---------------------------------------------------------- */

.page-title { font-size: 1.5rem; margin: 0 0 .4rem; }
.lede { color: var(--muted); font-family: var(--sans); font-size: .95rem; margin: 0 0 2.5rem; }
.lede code { background: var(--code-bg); padding: .05rem .3rem; border-radius: 3px; font-family: var(--mono); font-size: .85em; }
.year-group { margin-bottom: 2.5rem; }
.year {
  font-family: var(--mono); font-size: .78rem; font-weight: 400; letter-spacing: .12em;
  color: var(--muted); text-transform: uppercase; margin: 0 0 .75rem;
  padding-bottom: .35rem; border-bottom: 1px solid var(--line);
}
.card { margin: 0 0 1.6rem; }
.card h2 { font-size: 1.2rem; margin: 0 0 .2rem; line-height: 1.4; }
.card h2 a { text-decoration: none; }
.card h2 a:hover { text-decoration: underline; }
.meta { font-family: var(--sans); font-size: .78rem; color: var(--muted); margin: 0 0 .3rem; }
.meta a { text-decoration: none; color: var(--muted); }
.meta a:hover { color: var(--accent); }
.desc { margin: .2rem 0 0; font-size: .98rem; color: var(--muted); }
.empty { color: var(--muted); font-family: var(--sans); }

/* post -------------------------------------------------------------- */

.post header h1 { font-size: 1.85rem; line-height: 1.28; margin: 0 0 .5rem; }
.post > header { margin-bottom: 2.25rem; padding-bottom: 1.25rem; border-bottom: 1px solid var(--line); }
.post > header .lede { margin: .5rem 0 .8rem; font-size: 1rem; }
.tagline { font-family: var(--sans); font-size: .78rem; margin: .35rem 0 0; display: flex; gap: .7rem; }
.tagline a { color: var(--accent); text-decoration: none; }

.prose { max-width: var(--max); }
.prose h2 { font-size: 1.35rem; margin: 2.75rem 0 .6rem; line-height: 1.35; }
.prose h3 { font-size: 1.1rem; margin: 2rem 0 .4rem; }
.prose h4 { font-family: var(--sans); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin: 1.75rem 0 .35rem; }
.prose p, .prose ul, .prose ol { margin: 0 0 1.1rem; }
.prose li { margin: .3rem 0; }
.prose li > ul, .prose li > ol { margin: .3rem 0 .3rem; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }
.prose strong { font-weight: 700; }
.prose a { color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--line); }
.prose a:hover { border-bottom-color: var(--accent); }
.anchor { float: left; margin-left: -1.1em; opacity: 0; font-weight: 400; text-decoration: none; }
:is(h2, h3, h4):hover .anchor { opacity: .45; }

.prose code {
  font-family: var(--mono); font-size: .87em;
  background: var(--code-bg); padding: .1rem .32rem; border-radius: 3px;
}
.prose pre.code {
  font-family: var(--mono); font-size: .8rem; line-height: 1.6;
  background: var(--code-bg); border: 1px solid var(--line); border-left: 3px solid var(--accent);
  border-radius: 4px; padding: .9rem 1rem; overflow-x: auto; margin: 0 0 1.4rem;
}
.prose pre.code code { background: none; padding: 0; font-size: inherit; }
.prose pre.code[data-lang] { position: relative; }
.prose pre.code[data-lang]::before {
  content: attr(data-lang); position: absolute; top: .3rem; right: .6rem;
  font-family: var(--sans); font-size: .62rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
}

.prose blockquote {
  margin: 0 0 1.4rem; padding: .2rem 0 .2rem 1.1rem;
  border-left: 2px solid var(--line); color: var(--muted); font-style: italic;
}
.prose blockquote p:last-child { margin-bottom: 0; }

.prose .table-wrap { overflow-x: auto; margin: 0 0 1.5rem; }
.prose table { border-collapse: collapse; width: 100%; font-size: .86rem; font-family: var(--sans); }
.prose th, .prose td { border-bottom: 1px solid var(--line); padding: .45rem .6rem; text-align: left; vertical-align: top; }
.prose th { font-weight: 700; border-bottom-color: var(--fg); white-space: nowrap; }
.prose img { max-width: 100%; height: auto; border: 1px solid var(--line); border-radius: 4px; }

.pager { display: flex; gap: 1rem; flex-wrap: wrap; margin: 3rem 0 0; padding-top: 1.25rem; border-top: 1px solid var(--line); font-family: var(--sans); font-size: .84rem; }
.pager a { text-decoration: none; color: var(--muted); max-width: 48%; }
.pager a:hover { color: var(--accent); }
.pager .next { margin-left: auto; text-align: right; }

/* toc --------------------------------------------------------------- */

.toc {
  position: fixed; left: 50%; transform: translateX(calc(var(--max) / 2 + 3rem));
  top: 7rem; width: 13rem; max-height: 70vh; overflow: auto;
  font-family: var(--sans); font-size: .74rem; line-height: 1.5; color: var(--muted);
  border-left: 1px solid var(--line); padding-left: .9rem;
}
.toc p { margin: 0 0 .5rem; letter-spacing: .12em; text-transform: uppercase; font-size: .62rem; }
.toc ol { list-style: none; margin: 0; padding: 0; }
.toc a { text-decoration: none; color: var(--muted); display: block; }
.toc a:hover { color: var(--accent); }
.toc .l3 { padding-left: .7rem; }
@media (max-width: 1100px) { .toc { display: none; } }

.site-foot { margin-top: 4rem; padding-top: 1.25rem; border-top: 1px solid var(--line); font-family: var(--sans); font-size: .76rem; color: var(--muted); }
.site-foot p { margin: .25rem 0; }
.site-foot .built { opacity: .7; }
.site-foot a { color: inherit; }

::selection { background: var(--accent); color: var(--bg); }