/* tranekjer.org — datasheet theme (phosphor accent) */

:root {
  --bg: #f1eee3;
  --panel: #f8f6ec;
  --ink: #1c1b14;
  --ink2: #6b6656;
  --rule: #1c1b14;
  --hair: #cdc8b2;
  --acc: #3d7a3a;
  --acc-ink: #ffffff;
  --code-bg: #e9e5d4;
  --field: #f8f6ec;
}

:root[data-theme="dark"] {
  --bg: #17160f;
  --panel: #1d1b13;
  --ink: #e7e2cf;
  --ink2: #98937e;
  --rule: #e7e2cf;
  --hair: #3c392b;
  --acc: #7cb86a;
  --acc-ink: #101408;
  --code-bg: #100f09;
  --field: #100f09;
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  margin: 0 auto;
  max-width: 1180px;
  padding: 0 48px;
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 16.5px;
  line-height: 1.7;
}

a { color: var(--ink); }

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

.site-header { padding-top: 28px; }

.masthead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.site-title {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-weight: 700;
  font-size: 34px;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

.site-title .tld { color: var(--acc); }

.masthead-right { display: flex; align-items: center; gap: 28px; }

.site-nav {
  display: flex;
  gap: 24px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  letter-spacing: 0.06em;
}

.site-nav a { color: var(--ink2); text-decoration: none; }
.site-nav a:hover { color: var(--acc); }
.site-nav a.active {
  color: var(--ink);
  border-bottom: 2px solid var(--acc);
  padding-bottom: 2px;
}

.mode-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid var(--ink);
  color: var(--ink);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 6px 10px;
  cursor: pointer;
}
.mode-toggle:hover { background: var(--ink); color: var(--bg); }
.mode-toggle .swatch { width: 10px; height: 10px; background: var(--acc); display: inline-block; }

.rule-heavy { border-top: 3px solid var(--rule); }
.rule-light { border-top: 1px solid var(--rule); margin-top: 3px; }

/* ---------- homepage ---------- */

.intro { padding: 40px 0; border-bottom: 1px solid var(--hair); }

.lede {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-weight: 600;
  font-size: 27px;
  line-height: 1.35;
  margin: 0;
  max-width: 820px;
  text-wrap: pretty;
}

.search-box {
  display: flex;
  margin-top: 28px;
  border: 1px solid var(--ink);
  max-width: 460px;
}
.search-box .prompt {
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  color: var(--ink2);
  padding: 10px 0 10px 14px;
  align-self: center;
}
.search-box input {
  flex: 1;
  min-width: 0;
  background: var(--field);
  border: none;
  outline: none;
  color: var(--ink);
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  padding: 10px 14px;
}
.search-box button {
  background: var(--ink);
  color: var(--bg);
  border: none;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 0 18px;
  cursor: pointer;
}
.search-box button:hover { background: var(--acc); color: var(--acc-ink); }

.article-index { padding: 32px 0 8px 0; }
.article-index.standalone, .tag-index.standalone, .search-page, .notfound { padding-top: 36px; }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 6px;
}

.section-head h2, .tag-index h2 {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.12em;
  margin: 0;
}

.page-title {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-weight: 700;
  font-size: 28px;
  letter-spacing: 0.1em;
  margin: 0 0 18px 0;
}

.count {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--ink2);
}

.article-table { border-top: 2px solid var(--rule); }

.article-row {
  display: grid;
  grid-template-columns: 128px 96px 1fr 220px;
  gap: 24px;
  align-items: baseline;
  padding: 18px 0;
  border-bottom: 1px solid var(--hair);
  color: var(--ink);
  text-decoration: none;
}
.article-row:hover { background: var(--panel); }
.article-row.search-hit { grid-template-columns: 1fr; }

.a-date, .a-no {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12.5px;
}
.a-date { color: var(--ink2); }
.a-no { color: var(--acc); font-weight: 600; }

.a-title {
  display: block;
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-weight: 600;
  font-size: 19px;
}
.a-summary {
  display: block;
  font-size: 14px;
  color: var(--ink2);
  margin-top: 3px;
  text-wrap: pretty;
}

.a-tags {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  flex-wrap: wrap;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11.5px;
  color: var(--ink2);
}
.a-tags .chip { border: 1px solid var(--hair); padding: 2px 7px; }

.tag-index { padding: 16px 0 44px 0; }
.tag-index h2, .tag-index .page-title { margin-bottom: 12px; }

.tag-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12.5px;
}
.tag-chip {
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--ink);
  padding: 5px 10px;
}
.tag-chip:hover { background: var(--ink); color: var(--bg); }

.backlink { font-family: "IBM Plex Mono", monospace; font-size: 12.5px; padding: 20px 0; }
.backlink a { text-decoration: none; }
.backlink a:hover { color: var(--acc); }

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

.title-block { padding-top: 36px; }

.kicker {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12.5px;
  color: var(--acc);
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.post h1 {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-weight: 700;
  font-size: 44px;
  line-height: 1.1;
  margin: 0 0 24px 0;
  max-width: 850px;
  text-wrap: pretty;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 2px solid var(--rule);
  border-bottom: 1px solid var(--hair);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12.5px;
}
.meta-grid > div { padding: 10px 0; }
.meta-grid .k { color: var(--ink2); margin-right: 8px; }
.meta-grid a { color: var(--ink); }

.post-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 56px;
  padding: 36px 0 24px 0;
}
.post-layout.no-toc { grid-template-columns: 1fr; }

.post-body { max-width: 760px; min-width: 0; }

.post-body h2 {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-weight: 700;
  font-size: 24px;
  letter-spacing: 0.06em;
  margin: 36px 0 16px 0;
}
.post-body h2:first-child { margin-top: 0; }

.post-body h3 {
  font-family: "IBM Plex Sans Condensed", sans-serif;
  font-weight: 600;
  font-size: 19px;
  letter-spacing: 0.04em;
  margin: 28px 0 12px 0;
}

.post-body p { margin: 0 0 20px 0; text-wrap: pretty; }

.post-body a { color: var(--ink); text-decoration-color: var(--acc); }
.post-body a:hover { color: var(--acc); }

.post-body code {
  font-family: "IBM Plex Mono", monospace;
  font-size: 14px;
  background: var(--code-bg);
  padding: 2px 6px;
}

.post-body pre {
  margin: 0 0 24px 0;
  background: var(--code-bg);
  border: 1px solid var(--hair);
  border-top: 2px solid var(--rule);
  padding: 20px 24px;
  font-size: 13.5px;
  line-height: 1.65;
  overflow-x: auto;
}
.post-body pre code { background: none; padding: 0; font-size: 13.5px; }

.post-body blockquote {
  border: 1px solid var(--ink);
  padding: 14px 18px;
  margin: 24px 0 28px 0;
  font-size: 14.5px;
  color: var(--ink2);
}
.post-body blockquote p { margin: 0; }

.post-body img { max-width: 100%; border: 1px solid var(--hair); }

.post-body figcaption {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--ink2);
  padding-top: 8px;
}

.post-body table {
  border-collapse: collapse;
  font-size: 14.5px;
  margin: 0 0 24px 0;
}
.post-body th {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-align: left;
  border-bottom: 2px solid var(--rule);
  padding: 8px 18px 8px 0;
}
.post-body td {
  border-bottom: 1px solid var(--hair);
  padding: 8px 18px 8px 0;
}

.post-body hr { border: none; border-top: 1px solid var(--hair); margin: 32px 0; }

/* aside */

.post-aside {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12.5px;
  align-self: start;
  position: sticky;
  top: 24px;
}

.aside-head {
  font-weight: 600;
  letter-spacing: 0.1em;
  border-bottom: 2px solid var(--rule);
  padding-bottom: 6px;
}
.series-head { margin-top: 32px; }

.toc { display: grid; }
.toc a {
  color: var(--ink2);
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid var(--hair);
}
.toc a:last-child { border-bottom: none; }
.toc a:hover { color: var(--acc); }

.series-note { color: var(--ink2); padding: 8px 0; line-height: 1.6; }

/* prev / next */

.prev-next {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-top: 2px solid var(--rule);
  padding: 16px 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12.5px;
}
.prev-next a { color: var(--ink); text-decoration: none; }
.prev-next a:hover { color: var(--acc); }

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

.site-footer { padding: 24px 0 28px 0; }
.site-footer .rule-heavy { border-top-width: 2px; }

.footer-row {
  display: flex;
  justify-content: space-between;
  padding-top: 12px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11.5px;
  color: var(--ink2);
  letter-spacing: 0.04em;
}

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  body { padding: 0 20px; }
  .article-row { grid-template-columns: 110px 1fr; }
  .a-no { display: none; }
  .a-tags { display: none; }
  .post-layout { grid-template-columns: 1fr; }
  .post-aside { position: static; }
  .meta-grid { grid-template-columns: 1fr 1fr; }
  .post h1 { font-size: 32px; }
  .site-title { font-size: 26px; }
}