/* Terminal theme for alasdairgreen.co.uk
   --accent is set per directory on <body> (see DIRECTORIES in pelicanconf.py).
   --c is set per item where something belongs to another directory. */

:root {
  --bg: #0E1311;
  --surface: #111816;
  --hover: #151D1A;
  --line: #1F2A25;
  --line-soft: #1A2420;
  --border: #24302B;
  --text: #D6E2DA;
  --text-2: #B9C8BF;
  --prose: #C7D4CC;
  --muted: #8FA59A;
  --dim: #56665E;
  --accent: #7BD88F;

  --mono: 'JetBrains Mono', 'Noto Sans JP', ui-monospace, Menlo, monospace;
  --sans: 'IBM Plex Sans', 'Noto Sans JP', system-ui, sans-serif;

  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.5;
}

a { color: var(--accent); }
a:hover { color: var(--text); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.muted { color: var(--muted); }

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 16px;
  top: 16px;
  padding: 8px 12px;
  background: var(--surface);
  z-index: 10;
}

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.site-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.prompt {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
}
.prompt .ps { color: var(--accent); }

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  font-size: 14px;
}
.site-nav a {
  color: var(--c, var(--text));
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}
.site-nav a:hover,
.site-nav a[aria-current] { border-bottom-color: currentColor; }
.site-nav a.plain { color: var(--text); }
.site-nav a.muted { color: var(--muted); }

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  margin-top: 96px;
  padding: 24px 0 40px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
}
.site-footer .links { display: flex; flex-wrap: wrap; gap: 16px; }
.site-footer a { color: var(--muted); }

/* ---------- shared bits ---------- */

.cmd {
  margin: 0 0 16px;
  font-size: 14px;
  font-weight: 400;
  color: var(--muted);
}
.cmd .ps { color: var(--accent); }

.lede {
  margin: 0;
  max-width: 660px;
  font-family: var(--sans);
  font-size: 20px;
  line-height: 1.6;
  color: var(--text-2);
  text-wrap: pretty;
}

.block { margin-top: 72px; }

.more {
  display: inline-block;
  margin-top: 20px;
  font-size: 14px;
  text-decoration: none;
}
.more:hover { text-decoration: underline; }

.hint {
  margin: 16px 0 0;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--muted);
}

/* ---------- home ---------- */

.hero { padding: 96px 0 0; }

.name {
  margin: 0 0 24px;
  font-size: clamp(40px, 7vw, 84px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.cursor {
  display: inline-block;
  width: 0.55em;
  height: 0.9em;
  margin-left: 0.12em;
  vertical-align: -0.06em;
  background: var(--accent);
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .cursor { animation: none; } }

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 32px 0 0;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  color: var(--muted);
}
.status .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* ---------- cards (directories, series) ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: 20px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
}
a.card:hover { border-color: var(--c, var(--accent)); color: var(--text); }

.dir-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}
.dir-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--c, var(--accent));
}
.count { font-size: 12px; color: var(--muted); }

.blurb {
  margin: 0;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
  color: var(--text-2);
}

.tree-root {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--c, var(--accent));
}

.tree {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  line-height: 1.5;
}
.tree li { display: flex; gap: 8px; }
.tree .branch { flex: none; color: var(--dim); }
.tree a { color: var(--text); text-decoration: none; }
.tree a:hover { color: var(--c, var(--accent)); text-decoration: underline; }
.tree .here { color: var(--c, var(--accent)); }

.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  display: inline-flex;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  color: var(--c, var(--text));
  text-decoration: none;
}
.chip:hover { border-color: currentColor; color: var(--c, var(--text)); }

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

.ls {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 24px;
  align-items: baseline;
  padding: 14px 12px;
  margin: 0 -12px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text);
  text-decoration: none;
}
.row:hover { background: var(--hover); color: var(--text); }
.row time { flex: none; width: 96px; font-size: 13px; color: var(--muted); }
.row .dir { flex: none; width: 96px; font-size: 13px; color: var(--c, var(--muted)); }
.row .title { flex: 1 1 320px; font-family: var(--sans); font-size: 17px; font-weight: 500; }

.listing { padding-top: 72px; }

.list-title {
  margin: 0 0 16px;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--accent);
}
.listing .lede { margin-bottom: 40px; }
.listing .list-title + .ls,
.listing .list-title + .chips,
.listing .list-title + .cards { margin-top: 32px; }

.year {
  margin: 40px 0 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
}

/* ---------- article ---------- */

.post { padding-top: 72px; max-width: 760px; }

.post-title {
  margin: 0 0 20px;
  font-size: clamp(30px, 4.6vw, 48px);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  margin: 0 0 40px;
  font-size: 13px;
  color: var(--muted);
}
.post-meta a { text-decoration: none; }
.post-meta a:hover { text-decoration: underline; }
.post-meta .tags { display: flex; flex-wrap: wrap; gap: 4px 12px; }
.post-meta .tags a { color: var(--muted); }
.post-meta .tags a::before { content: '#'; }

.series-box { margin: 0 0 40px; }

.post-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  gap: 16px;
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.post-nav a {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
}
.post-nav a .muted { font-family: var(--mono); font-size: 13px; font-weight: 400; }
.post-nav a:hover { color: var(--accent); }
.post-nav .next { text-align: right; align-items: flex-end; }

/* ---------- prose (rendered Markdown) ---------- */

.prose {
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.7;
  color: var(--prose);
  overflow-wrap: break-word;
}
.prose > :first-child { margin-top: 0; }

.prose p,
.prose ul,
.prose ol,
.prose blockquote,
.prose table,
.prose .highlight,
.prose pre,
.prose figure,
.prose .example { margin: 0 0 24px; }

.prose h1, .prose h2, .prose h3, .prose h4 {
  margin: 48px 0 16px;
  font-family: var(--mono);
  line-height: 1.3;
  color: var(--text);
}
.prose h1 { font-size: 22px; }
.prose h2 { font-size: 19px; }
.prose h3 { font-size: 17px; }
.prose h4 { font-size: 16px; }
.prose h1::before { content: '# '; color: var(--accent); }
.prose h2::before { content: '## '; color: var(--accent); }
.prose h3::before { content: '### '; color: var(--accent); }
.prose h4::before { content: '#### '; color: var(--accent); }

.prose a { text-underline-offset: 3px; }
.prose strong { color: var(--text); font-weight: 600; }

.prose ul, .prose ol { padding-left: 1.4em; }
.prose li + li { margin-top: 6px; }
.prose li::marker { color: var(--accent); font-family: var(--mono); }

.prose hr { margin: 48px 0; border: 0; border-top: 1px solid var(--line); }

.prose img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.prose blockquote {
  padding: 16px 20px;
  background: var(--surface);
  border-radius: 6px;
  color: var(--text-2);
}
.prose blockquote > :last-child { margin-bottom: 0; }

.prose :not(pre) > code {
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  font-family: var(--mono);
  font-size: 0.85em;
  color: var(--text);
}

/* Tables scroll sideways on narrow screens rather than squashing */
.prose table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 14px;
}
.prose th, .prose td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--line-soft);
  text-align: left;
  vertical-align: middle;
}
.prose th {
  background: var(--surface);
  font-weight: 400;
  color: var(--muted);
  border-bottom-color: var(--border);
}

/* Japanese: readings above kanji */
.prose ruby, .post-title ruby { ruby-position: over; }
.prose rt, .post-title rt {
  font-size: 0.5em;
  font-weight: 400;
  color: var(--muted);
}
.prose :lang(ja), .prose td ruby { font-family: 'Noto Sans JP', var(--sans); }
.prose td ruby { font-size: 1.6em; line-height: 1.8; }

/* <div class="example" markdown="1">: the first line is the example itself */
.prose .example {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
}
.prose .example > p:first-child {
  margin-bottom: 12px;
  font-size: 1.5em;
  line-height: 1.9;
  color: var(--text);
}
.prose .example > p { margin-bottom: 4px; }
.prose .example > :last-child { margin-bottom: 0; }

/* ---------- code blocks ---------- */

.prose .highlight {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  overflow: hidden;
}
.prose .highlight pre,
.prose pre {
  margin: 0;
  padding: 20px 24px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  tab-size: 4;
}
.prose > pre {
  margin-bottom: 24px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
}

/* Added by site.js */
.code-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}
.code-head button {
  min-height: 28px;
  padding: 0 4px;
  border: 0;
  background: none;
  font: inherit;
  color: var(--muted);
  cursor: pointer;
}
.code-head button:hover { color: var(--accent); }

/* Tab and other plain-text blocks lean on the directory colour for the header line */
.prose .highlight code.language-tab { color: var(--text); }

/* Pygments tokens */
.highlight .c, .highlight .c1, .highlight .cm, .highlight .cs, .highlight .ch, .highlight .cp, .highlight .cpf { color: #7F968A; font-style: italic; }
.highlight .k, .highlight .kc, .highlight .kd, .highlight .kn, .highlight .kp, .highlight .kr, .highlight .kt, .highlight .ow { color: #9DB8FF; }
.highlight .s, .highlight .s1, .highlight .s2, .highlight .sa, .highlight .sb, .highlight .sc, .highlight .sd, .highlight .se, .highlight .sh, .highlight .si, .highlight .sx, .highlight .sr, .highlight .ss, .highlight .dl { color: #E5C07B; }
.highlight .m, .highlight .mi, .highlight .mf, .highlight .mh, .highlight .mo, .highlight .il { color: #C9A8FF; }
.highlight .nf, .highlight .fm, .highlight .nc, .highlight .nn { color: #8FD3C8; }
.highlight .nb, .highlight .bp, .highlight .nd { color: #F2A97F; }
.highlight .nv, .highlight .vc, .highlight .vg, .highlight .vi, .highlight .na, .highlight .nt { color: #F28B82; }
.highlight .o, .highlight .p { color: var(--text-2); }
.highlight .err { color: inherit; background: none; }
.highlight .gd { color: #F28B82; }
.highlight .gi { color: #7BD88F; }

/* ---------- small screens ---------- */

@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .hero { padding-top: 56px; }
  .block { margin-top: 56px; }
  .listing, .post { padding-top: 48px; }
  .lede { font-size: 18px; }
  .prose { font-size: 17px; }
  .prose .highlight pre, .prose pre { padding: 16px; font-size: 14px; }
  .row time, .row .dir { width: auto; }
  .post-nav .next { text-align: left; align-items: flex-start; }
}