/* Venusleeyous — "genome browser for a notebook"
   Cool lab paper, ink text, one colour per category used like a browser track. */

:root {
  --paper: #F6F7F4;
  --paper-2: #EDEFEA;
  --ink: #18202B;
  --ink-2: #333D4A;
  --muted: #5B6573;
  --rule: #D9DDD6;
  --rule-strong: #B9BFB6;
  --link: #2357C6;
  --link-hover: #183F8F;
  --code-bg: #1C2430;
  --code-ink: #E3E8EF;
  --mark: rgba(35, 87, 198, .1);

  --sans: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, "Liberation Mono", monospace;

  --measure: 42rem;      /* ~68 CJK-and-latin characters */
  --wide: 68rem;
  --gutter: clamp(16px, 4vw, 40px);
  color-scheme: light;
}
:root[data-theme="dark"] {
  --paper: #0E1420;
  --paper-2: #151D2B;
  --ink: #DCE3EC;
  --ink-2: #C1CAD6;
  --muted: #8D98A8;
  --rule: #253042;
  --rule-strong: #3A4659;
  --link: #8CB0FF;
  --link-hover: #B8CEFF;
  --code-bg: #0A0F18;
  --code-ink: #DCE3EC;
  --mark: rgba(140, 176, 255, .14);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.75 var(--sans);
  font-feature-settings: "palt" 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body.is-locked { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); }
:focus-visible { outline: 2px solid var(--link); outline-offset: 2px; border-radius: 2px; }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.3; margin: 0; font-weight: 700; }
p { margin: 0; }
button { font: inherit; color: inherit; }
kbd {
  font: 500 11px/1 var(--mono); padding: 3px 5px; border-radius: 4px;
  border: 1px solid var(--rule-strong); color: var(--muted); background: var(--paper);
}
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: 12px; top: -48px; background: var(--ink); color: var(--paper); padding: 8px 12px; z-index: 100; border-radius: 4px; }
.skip-link:focus { top: 12px; color: var(--paper); }
.icon { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex: none; }

.wrap { width: 100%; max-width: var(--wide); margin: 0 auto; padding: 0 var(--gutter); }
.narrow { max-width: calc(var(--measure) + 2 * var(--gutter)); }

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

.site-header {
  position: sticky; top: 0; z-index: 30;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.2) blur(10px);
  -webkit-backdrop-filter: saturate(1.2) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}
.site-header.is-scrolled { border-bottom-color: var(--rule); }
.header-inner { display: flex; align-items: center; gap: 28px; height: 60px; }
.brand { display: inline-flex; align-items: baseline; gap: 8px; color: var(--ink); font-weight: 700; font-size: 17px; letter-spacing: -.01em; }
.brand:hover { color: var(--ink); }
.brand-path { font: 400 13px/1 var(--mono); color: var(--muted); }
.nav-desktop { display: flex; gap: 2px; margin-right: auto; }
.nav-link { color: var(--muted); font-size: 15px; padding: 6px 10px; border-radius: 6px; }
.nav-link:hover { color: var(--ink); background: var(--paper-2); }
.nav-link.is-active { color: var(--ink); box-shadow: inset 0 -2px 0 var(--ink); border-radius: 0; }
.header-actions { display: flex; align-items: center; gap: 6px; }
.icon-btn {
  display: inline-flex; align-items: center; gap: 8px; height: 36px; min-width: 36px; justify-content: center;
  padding: 0 8px; border: 1px solid transparent; background: none; color: var(--ink-2); border-radius: 6px; cursor: pointer;
}
.icon-btn:hover { background: var(--paper-2); color: var(--ink); }
.search-open { border-color: var(--rule); padding: 0 8px 0 10px; color: var(--muted); }
.search-open .search-btn-label { font-size: 14px; margin-right: 18px; }
.theme-toggle .icon-moon, :root[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: inline-flex; }
.menu-toggle { display: none; }

@media (max-width: 860px) {
  .nav-desktop { display: none; }
  .menu-toggle { display: inline-flex; }
  .header-inner { justify-content: space-between; gap: 12px; }
  .search-open .search-btn-label, .search-open kbd { display: none; }
  .search-open { border-color: transparent; }
}

/* ---------------------------------------------------------------- drawer */

.drawer { position: fixed; inset: 0; z-index: 50; visibility: hidden; }
.drawer.is-open { visibility: visible; }
.drawer-backdrop { position: absolute; inset: 0; background: rgba(10, 14, 20, .45); opacity: 0; transition: opacity .2s; }
.drawer.is-open .drawer-backdrop { opacity: 1; }
.drawer-panel {
  position: absolute; right: 0; top: 0; bottom: 0; width: min(320px, 86vw);
  background: var(--paper); border-left: 1px solid var(--rule);
  display: flex; flex-direction: column; padding: 14px 18px 24px;
  transform: translateX(100%); transition: transform .24s ease;
}
.drawer.is-open .drawer-panel { transform: none; }
.drawer-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.drawer-title { font: 400 13px/1 var(--mono); color: var(--muted); }
.drawer-nav { display: flex; flex-direction: column; }
.drawer-nav a { display: flex; align-items: center; gap: 12px; color: var(--ink); padding: 13px 4px; border-bottom: 1px solid var(--rule); font-size: 16px; }
.drawer-nav a .icon { color: var(--muted); }
.drawer-nav a.is-active { font-weight: 700; }
.drawer-nav a.is-active .icon { color: var(--ink); }
.drawer-foot { margin-top: auto; display: flex; gap: 10px; }

/* ---------------------------------------------------------------- buttons & bits */

.btn {
  display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 16px;
  border-radius: 6px; border: 1px solid var(--rule-strong); background: none; color: var(--ink);
  font-size: 15px; cursor: pointer; white-space: nowrap;
}
.btn:hover { border-color: var(--ink); color: var(--ink); }
.btn-primary { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--ink-2); color: var(--paper); }
.btn-sm { height: 34px; padding: 0 12px; font-size: 14px; }

.cat {
  display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); white-space: nowrap;
}
.cat::before { content: ""; width: 10px; height: 10px; border-radius: 2px; background: var(--c, var(--muted)); }
a.cat:hover { color: var(--ink); }
.date { font: 400 13px/1 var(--mono); color: var(--muted); letter-spacing: -.01em; white-space: nowrap; }

/* ---------------------------------------------------------------- page heads */

.page-head { padding: clamp(48px, 9vw, 96px) 0 clamp(28px, 4vw, 40px); }
.page-head h1 { font-size: clamp(32px, 5vw, 48px); letter-spacing: -.02em; }
.page-head p { color: var(--muted); margin-top: 12px; font-size: 17px; max-width: var(--measure); }
.section { padding: 0 0 clamp(56px, 8vw, 96px); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--ink); margin-bottom: 4px; }
.section-head h2 { font-size: 20px; }
.section-head a { font-size: 14px; }

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

.home-hero { padding: clamp(48px, 10vw, 112px) 0 clamp(28px, 4vw, 44px); }
.home-hero h1 {
  font-size: clamp(30px, 5.6vw, 60px); line-height: 1.22; letter-spacing: -.025em; font-weight: 800;
  max-width: 15em; text-wrap: balance;
}
.home-hero p { margin-top: 20px; font-size: clamp(16px, 1.8vw, 19px); color: var(--ink-2); max-width: 32em; }
.home-hero .hero-actions { margin-top: 28px; display: flex; gap: 10px; flex-wrap: wrap; }

/* the genome track — the one loud thing on the site */
.track {
  border: 1px solid var(--rule-strong); border-radius: 8px; background: var(--paper-2);
  margin-bottom: clamp(56px, 8vw, 96px);
}
.track-head {
  display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 10px 16px; border-bottom: 1px solid var(--rule); font: 400 12.5px/1.4 var(--mono); color: var(--muted);
}
.track-head strong { color: var(--ink); font-weight: 600; }
.track-body { padding: 4px 16px 14px; }
.track-ruler { position: relative; height: 30px; margin-left: 120px; border-bottom: 1px solid var(--rule-strong); }
.track-tick { position: absolute; bottom: -1px; height: 8px; border-left: 1px solid var(--rule-strong); }
.track-tick span { position: absolute; bottom: 10px; left: 0; transform: translateX(-50%); font: 400 11.5px/1 var(--mono); color: var(--muted); white-space: nowrap; }
.track-tick:first-child span { transform: none; }
.track-tick:last-child span { transform: translateX(-100%); }
.track-row { display: grid; grid-template-columns: 120px 1fr; align-items: center; height: 38px; border-bottom: 1px dashed var(--rule); }
.track-row:last-child { border-bottom: 0; }
.track-label { font-size: 13px; color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding-right: 10px; }
.track-lane { position: relative; height: 100%; }
.track-lane::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; border-top: 1px solid var(--rule); }
.feature {
  position: absolute; top: 50%; width: 12px; height: 20px; margin-left: -6px; transform: translateY(-50%);
  background: var(--c); border-radius: 2px; outline-offset: 3px;
  transition: transform .15s ease, box-shadow .15s ease;
}
.feature:hover, .feature:focus-visible { transform: translateY(-50%) scaleY(1.3); box-shadow: 0 0 0 3px color-mix(in srgb, var(--c) 25%, transparent); z-index: 2; }
.feature-tip {
  position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translateX(-50%) scaleY(.77);
  width: max-content; max-width: 260px; padding: 7px 10px; border-radius: 6px;
  background: var(--ink); color: var(--paper); font-size: 13px; line-height: 1.45;
  display: none; pointer-events: none;
}
.feature-tip .date { color: color-mix(in srgb, var(--paper) 70%, transparent); display: block; margin-bottom: 3px; font-size: 11.5px; }
.feature:hover .feature-tip, .feature:focus-visible .feature-tip { display: block; }
.track-foot { padding: 10px 16px; border-top: 1px solid var(--rule); font-size: 13px; color: var(--muted); }

.home-about { display: grid; grid-template-columns: 112px 1fr; gap: 28px; padding: 32px 0; border-top: 1px solid var(--rule); align-items: start; }
.home-about img { width: 112px; height: 112px; border-radius: 50%; }
.home-about h2 { font-size: 20px; margin-bottom: 8px; }
.home-about p { color: var(--ink-2); max-width: var(--measure); }
.home-about .links { margin-top: 12px; display: flex; gap: 20px; font-size: 15px; }
@media (max-width: 600px) { .home-about { grid-template-columns: 1fr; gap: 16px; } .home-about img { width: 80px; height: 80px; } }

/* ---------------------------------------------------------------- post list rows */

.post-list { list-style: none; margin: 0; padding: 0; }
.post-row { border-bottom: 1px solid var(--rule); }
.post-row > a {
  display: grid; grid-template-columns: 92px 1fr auto; gap: 6px 20px; align-items: baseline;
  padding: 18px 0; color: var(--ink);
}
.post-row > a:hover .post-row-title { color: var(--link); }
.post-row .date { padding-top: 3px; }
.post-row-title { font-size: 17px; font-weight: 600; line-height: 1.5; transition: color .12s; }
.post-row-desc { grid-column: 2 / 3; color: var(--muted); font-size: 14.5px; line-height: 1.65; }
.post-row-meta { grid-column: 3; grid-row: 1; display: flex; align-items: baseline; gap: 14px; }
.post-row-meta .mins { font-size: 12.5px; color: var(--muted); }
@media (max-width: 640px) {
  .post-row > a { grid-template-columns: 1fr; gap: 6px; }
  .post-row .date, .post-row-desc, .post-row-meta { grid-column: 1; grid-row: auto; }
}
.list-more { padding-top: 22px; }

/* filter bar on the articles page */
.list-toolbar { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; justify-content: space-between; padding-bottom: 14px; border-bottom: 1px solid var(--ink); }
.filter-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip-btn {
  display: inline-flex; align-items: center; gap: 7px; height: 32px; padding: 0 12px;
  border: 1px solid var(--rule); background: none; border-radius: 16px; cursor: pointer; color: var(--ink-2); font-size: 14px;
}
.chip-btn::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--c, var(--ink)); }
.chip-btn span { color: var(--muted); font-size: 12.5px; }
.chip-btn:hover { border-color: var(--rule-strong); }
.chip-btn.is-active { border-color: var(--ink); color: var(--ink); background: var(--paper-2); }
.list-search { display: flex; align-items: center; gap: 8px; height: 36px; padding: 0 10px; border: 1px solid var(--rule); border-radius: 6px; color: var(--muted); }
.list-search:focus-within { border-color: var(--ink); }
.list-search input { border: 0; outline: 0; background: none; color: var(--ink); font: inherit; font-size: 14px; width: 160px; }
.list-status { padding: 12px 0 0; font-size: 14px; color: var(--muted); }
.list-status strong { color: var(--ink); }
.list-status button { background: none; border: 0; color: var(--link); cursor: pointer; padding: 0 0 0 8px; font-size: 14px; }
.empty-state { padding: 48px 0; color: var(--muted); }

/* ---------------------------------------------------------------- archive */

.archive-year { display: grid; grid-template-columns: 120px 1fr; gap: 20px; padding: 28px 0; border-top: 1px solid var(--ink); }
.archive-year h2 { font: 600 28px/1 var(--mono); letter-spacing: -.03em; }
.archive-year h2 small { display: block; font: 400 13px/1.6 var(--sans); color: var(--muted); margin-top: 8px; letter-spacing: 0; }
.archive-month + .archive-month { margin-top: 18px; }
.archive-month h3 { font-size: 14px; color: var(--muted); font-weight: 500; margin-bottom: 4px; }
.archive-list { list-style: none; margin: 0; padding: 0; }
.archive-list a { display: grid; grid-template-columns: 54px 1fr auto; gap: 16px; align-items: baseline; padding: 10px 0; border-bottom: 1px solid var(--rule); color: var(--ink); }
.archive-list a:hover .t { color: var(--link); }
.archive-list .t { font-size: 16px; }
@media (max-width: 640px) {
  .archive-year { grid-template-columns: 1fr; gap: 8px; }
  .archive-list a { grid-template-columns: 46px 1fr; }
  .archive-list .cat { display: none; }
}

/* ---------------------------------------------------------------- categories & tags */

.cat-block { display: grid; grid-template-columns: minmax(180px, 260px) 1fr; gap: 12px 40px; padding: 28px 0; border-top: 1px solid var(--rule); }
.cat-block:first-child { border-top-color: var(--ink); }
.cat-block h2 { font-size: 22px; display: flex; align-items: center; gap: 10px; }
.cat-block h2::before { content: ""; width: 14px; height: 22px; border-radius: 2px; background: var(--c); }
.cat-block .desc { color: var(--muted); margin-top: 8px; font-size: 15px; }
.cat-block .count { margin-top: 10px; font-size: 13px; color: var(--muted); }
.mini-list { list-style: none; margin: 0; padding: 0; }
.mini-list a { display: flex; gap: 16px; align-items: baseline; padding: 8px 0; color: var(--ink); border-bottom: 1px dashed var(--rule); }
.mini-list li:last-child a { border-bottom: 0; }
.mini-list a:hover span:last-child { color: var(--link); }
@media (max-width: 720px) { .cat-block { grid-template-columns: 1fr; } }

.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; padding-bottom: 28px; }
.tag-pill { display: inline-flex; gap: 8px; align-items: baseline; padding: 6px 14px; border: 1px solid var(--rule-strong); border-radius: 18px; color: var(--ink); font-size: 15px; }
.tag-pill span { font-size: 12.5px; color: var(--muted); }
.tag-pill:hover { border-color: var(--ink); color: var(--ink); }

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

.reading-progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 40; pointer-events: none; }
.reading-progress span { display: block; height: 100%; width: 0; background: var(--c, var(--link)); }

.post-head { padding: clamp(40px, 8vw, 88px) 0 28px; }
.post-head .crumbs { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; margin-bottom: 18px; }
.post-head h1 { font-size: clamp(28px, 4.4vw, 42px); line-height: 1.3; letter-spacing: -.02em; font-weight: 800; text-wrap: balance; }
.post-head .lede { margin-top: 16px; font-size: 17.5px; color: var(--ink-2); }
.post-head .meta { margin-top: 22px; padding-top: 14px; border-top: 1px solid var(--rule); display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: 14px; color: var(--muted); }

.post-shell { display: grid; grid-template-columns: minmax(0, var(--measure)) 1fr; gap: 56px; align-items: start; }
.post-side { position: sticky; top: 84px; font-size: 13.5px; }
.side-title { font: 400 12px/1 var(--mono); color: var(--muted); margin-bottom: 10px; }
.toc-nav { display: flex; flex-direction: column; border-left: 1px solid var(--rule); }
.toc-nav a { color: var(--muted); padding: 4px 0 4px 14px; margin-left: -1px; border-left: 2px solid transparent; line-height: 1.5; }
.toc-nav a.level-3 { padding-left: 26px; }
.toc-nav a:hover { color: var(--ink); }
.toc-nav a.is-active { color: var(--ink); border-left-color: var(--c, var(--ink)); }
.toc-mobile { display: none; margin-bottom: 24px; border: 1px solid var(--rule); border-radius: 6px; }
.toc-mobile summary { padding: 10px 14px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-size: 14px; color: var(--ink-2); list-style: none; }
.toc-mobile summary::-webkit-details-marker { display: none; }
.toc-mobile .toc-nav { border-left: 0; padding: 0 14px 12px; }
.toc-mobile .toc-nav a { padding-left: 0; border-left: 0; }
.toc-mobile .toc-nav a.level-3 { padding-left: 14px; }
@media (max-width: 1000px) {
  .post-shell { grid-template-columns: minmax(0, 1fr); }
  .post-side { display: none; }
  .toc-mobile { display: block; }
}

/* article typography */
.prose { font-size: 16.5px; line-height: 1.85; color: var(--ink-2); overflow-wrap: anywhere; }
.prose > * + * { margin-top: 1.1em; }
.prose h2 { font-size: 23px; margin-top: 2.1em; color: var(--ink); padding-top: .2em; }
.prose h3 { font-size: 19px; margin-top: 1.8em; color: var(--ink); }
.prose h4, .prose h5 { font-size: 16.5px; margin-top: 1.6em; color: var(--ink); }
.prose h2 + *, .prose h3 + *, .prose h4 + * { margin-top: .6em; }
.prose a { text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--link) 40%, transparent); text-underline-offset: 3px; }
.prose a:hover { text-decoration-color: currentColor; }
.prose strong { color: var(--ink); }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li + li { margin-top: .35em; }
.prose li::marker { color: var(--muted); }
.prose blockquote { margin-left: 0; margin-right: 0; padding: 2px 0 2px 18px; border-left: 3px solid var(--rule-strong); color: var(--muted); }
.prose blockquote > * + * { margin-top: .8em; }
.prose hr { border: 0; border-top: 1px dashed var(--rule-strong); margin: 2.4em 0; }
.prose table { border-collapse: collapse; width: 100%; font-size: 15px; display: block; overflow-x: auto; }
.prose th, .prose td { border-bottom: 1px solid var(--rule); padding: 8px 12px 8px 0; text-align: left; }
.prose :not(pre) > code {
  font: 400 .88em/1 var(--mono); background: var(--paper-2); color: var(--ink);
  border: 1px solid var(--rule); padding: .14em .38em; border-radius: 4px; overflow-wrap: anywhere;
}
.prose del { color: var(--muted); }

/* code blocks */
.code-block { position: relative; background: var(--code-bg); color: var(--code-ink); border-radius: 6px; overflow: hidden; }
.prose .code-block { margin-left: calc(-1 * min(20px, var(--gutter) / 2)); margin-right: calc(-1 * min(20px, var(--gutter) / 2)); }
.code-meta { display: flex; justify-content: space-between; align-items: center; padding: 6px 8px 0 16px; }
.code-lang { font: 400 11.5px/1 var(--mono); color: #8C97A7; }
.code-copy { background: none; border: 1px solid #364254; color: #AEB8C6; font-size: 12px; padding: 3px 9px; border-radius: 4px; cursor: pointer; }
.code-copy:hover { color: #fff; border-color: #5A6880; }
.code-copy.is-copied { color: #8FD3A7; border-color: #3C6E50; }
.code-block pre { margin: 0; padding: 10px 16px 16px; overflow-x: auto; font: 400 13.5px/1.7 var(--mono); tab-size: 4; }
.code-block code { font: inherit; white-space: pre; }
.hljs-comment, .hljs-quote { color: #7F8B9C; font-style: italic; }
.hljs-keyword, .hljs-selector-tag, .hljs-literal { color: #F29E74; }
.hljs-string, .hljs-regexp, .hljs-addition, .hljs-attribute { color: #A8D08D; }
.hljs-number, .hljs-symbol, .hljs-bullet { color: #E5C07B; }
.hljs-built_in, .hljs-type { color: #7FB6E8; }
.hljs-title, .hljs-section { color: #E6CB86; }
.hljs-variable, .hljs-template-variable { color: #C8A6FF; }
.hljs-meta { color: #93A4B8; }
.hljs-tag, .hljs-name { color: #F29E74; }
.hljs-attr { color: #E5C07B; }
.hljs-deletion { color: #E07A7A; }

/* tab groups inside posts */
.tabs { border: 1px solid var(--rule); border-radius: 6px; overflow: hidden; }
.nav-tabs { display: flex; gap: 0; margin: 0; padding: 0 6px; list-style: none; border-bottom: 1px solid var(--rule); background: var(--paper-2); overflow-x: auto; }
.nav-tabs .tab button { background: none; border: 0; padding: 10px 12px; font-size: 14px; color: var(--muted); cursor: pointer; white-space: nowrap; box-shadow: inset 0 -2px 0 transparent; }
.nav-tabs .tab button:hover { color: var(--ink); }
.nav-tabs .tab.active button { color: var(--ink); font-weight: 600; box-shadow: inset 0 -2px 0 var(--ink); }
.tab-item-content { display: none; padding: 14px 16px; }
.tab-item-content.active { display: block; }
.tab-item-content > * + * { margin-top: 1em; }
.tabs .code-block { margin: 0 !important; }

/* post footer */
.post-end { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--ink); display: flex; flex-wrap: wrap; gap: 12px 18px; justify-content: space-between; align-items: center; }
.post-end .tags { display: flex; gap: 14px; flex-wrap: wrap; font-size: 14px; }
.post-license { margin-top: 18px; font-size: 13.5px; color: var(--muted); line-height: 1.7; }
.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 40px; }
.post-nav a { display: block; padding: 14px 0; border-top: 1px solid var(--rule); color: var(--ink); }
.post-nav a.next { text-align: right; grid-column: 2; }
.post-nav small { display: block; color: var(--muted); font-size: 13px; margin-bottom: 4px; }
.post-nav span { font-weight: 600; line-height: 1.5; }
.post-nav a:hover span { color: var(--link); }
@media (max-width: 600px) { .post-nav { grid-template-columns: 1fr; } .post-nav a.next { grid-column: 1; text-align: left; } }
.related { margin-top: clamp(56px, 8vw, 88px); }

/* ---------------------------------------------------------------- about / links / message / 404 */

.about-grid { display: grid; grid-template-columns: minmax(0, var(--measure)) 1fr; gap: 56px; align-items: start; }
.profile { position: sticky; top: 84px; font-size: 14.5px; color: var(--muted); }
.profile img { width: 96px; height: 96px; border-radius: 50%; margin-bottom: 14px; }
.profile h2 { font-size: 20px; }
.profile .role { font-family: var(--mono); font-size: 12.5px; margin-top: 4px; }
.profile dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 18px 0; padding: 14px 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.profile dt { color: var(--muted); }
.profile dd { margin: 0; color: var(--ink); }
.profile .links { display: flex; gap: 16px; }
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; } .profile { position: static; order: -1; } }

.link-group + .link-group { margin-top: 48px; }
.link-group h2 { font-size: 18px; padding-bottom: 10px; border-bottom: 1px solid var(--ink); }
.link-list { list-style: none; margin: 0; padding: 0; }
.link-list a { display: grid; grid-template-columns: 40px 1fr auto; gap: 14px; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--rule); color: var(--ink); }
.link-list a:hover .name { color: var(--link); }
.link-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--paper-2); border: 1px solid var(--rule); display: grid; place-items: center; overflow: hidden; position: relative; font-weight: 700; color: var(--muted); }
.link-avatar img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.link-list .name { font-weight: 600; }
.link-list .desc { display: block; font-size: 14px; color: var(--muted); }
.link-list .url { font: 400 12.5px/1 var(--mono); color: var(--muted); }
@media (max-width: 560px) { .link-list .url { display: none; } .link-list a { grid-template-columns: 40px 1fr; } }
.apply { margin-top: 48px; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; padding: 24px; border: 1px solid var(--rule-strong); border-radius: 8px; }
.apply h2 { font-size: 18px; margin-bottom: 8px; }
.apply p { color: var(--ink-2); margin-bottom: 18px; }
@media (max-width: 720px) { .apply { grid-template-columns: 1fr; } }

.message { max-width: var(--measure); }
.message p { color: var(--ink-2); font-size: 17px; }
.message .mail { font: 500 clamp(20px, 4vw, 28px)/1.3 var(--mono); color: var(--ink); margin: 26px 0; display: inline-block; border-bottom: 2px solid var(--ink); overflow-wrap: anywhere; }
.message .actions { display: flex; gap: 10px; flex-wrap: wrap; }
.message .note { margin-top: 36px; font-size: 14.5px; color: var(--muted); }

.notfound { min-height: 62vh; display: flex; align-items: center; }
.notfound .code { font: 600 clamp(56px, 12vw, 120px)/1 var(--mono); letter-spacing: -.04em; color: var(--rule-strong); }
.notfound h1 { font-size: clamp(26px, 4vw, 36px); margin-top: 12px; }
.notfound p { color: var(--muted); margin-top: 10px; max-width: 30em; }
.notfound .hero-actions { margin-top: 24px; display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------------------------------------------------------------- search */

.search-modal { position: fixed; inset: 0; z-index: 60; display: flex; justify-content: center; align-items: flex-start; padding: 12vh 16px 16px; }
.search-modal[hidden] { display: none; }
.search-backdrop { position: absolute; inset: 0; background: rgba(10, 14, 20, .5); }
.search-panel { position: relative; width: min(620px, 100%); background: var(--paper); border: 1px solid var(--rule-strong); border-radius: 10px; overflow: hidden; box-shadow: 0 24px 60px -20px rgba(0, 0, 0, .45); }
.search-bar { display: flex; align-items: center; gap: 10px; padding: 0 14px; border-bottom: 1px solid var(--rule); color: var(--muted); }
.search-bar input { flex: 1; height: 54px; border: 0; outline: 0; background: none; color: var(--ink); font: inherit; font-size: 16px; }
.search-esc { background: none; border: 1px solid var(--rule); border-radius: 4px; font: 400 12px/1 var(--mono); padding: 4px 6px; color: var(--muted); cursor: pointer; }
.search-results { max-height: 56vh; overflow-y: auto; padding: 6px; }
.search-hint, .search-empty { padding: 22px 12px; color: var(--muted); font-size: 14.5px; }
.search-result { display: grid; grid-template-columns: 4px 1fr; gap: 14px; padding: 10px 12px; border-radius: 6px; color: var(--ink); }
.search-result::before { content: ""; border-radius: 2px; background: var(--c, var(--muted)); }
.search-result.is-selected { background: var(--paper-2); }
.search-result-title { display: block; font-weight: 600; line-height: 1.5; }
.search-result-meta { display: flex; gap: 12px; font-size: 12.5px; color: var(--muted); margin-top: 2px; }
.search-footnote { display: flex; gap: 16px; padding: 10px 12px 6px; border-top: 1px solid var(--rule); margin-top: 6px; font-size: 12px; color: var(--muted); }
.search-footnote kbd { margin-right: 4px; }

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

.site-footer { margin-top: clamp(56px, 8vw, 96px); border-top: 1px solid var(--rule); padding: 36px 0 28px; font-size: 14px; color: var(--muted); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
.footer-quote { color: var(--ink-2); font-size: 15px; }
.footer-quote cite { display: block; font-style: normal; color: var(--muted); font-size: 13px; margin-top: 4px; }
.footer-nav, .footer-contact { display: flex; flex-direction: column; gap: 6px; }
.footer-nav a, .footer-contact a { color: var(--muted); display: inline-flex; align-items: center; gap: 8px; }
.footer-nav a:hover, .footer-contact a:hover { color: var(--ink); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px; margin-top: 32px; padding-top: 16px; border-top: 1px dashed var(--rule); font-size: 12.5px; }
.footer-bottom a { color: var(--muted); }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-brand { grid-column: 1 / -1; } }

.to-top { position: fixed; right: 18px; bottom: 18px; z-index: 20; opacity: 0; visibility: hidden; transition: opacity .2s; }
.to-top.is-visible { opacity: 1; visibility: visible; }
.to-top .icon-btn { background: var(--paper); border-color: var(--rule-strong); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

.post-side { margin-top: clamp(40px, 8vw, 88px); }
.notfound .search-open { color: var(--ink); }
.prose > :first-child { margin-top: 0; padding-top: 0; }
.post-head { padding-bottom: 36px; }
@media (max-width: 640px) {
  .track-body { padding: 4px 12px 12px; }
  .feature { width: 8px; margin-left: -4px; }
  .track-ruler { margin-left: 76px; }
  .track-row { grid-template-columns: 76px 1fr; }
  .track-label { font-size: 12px; }
}

/* ---------------------------------------------------------------- badges, grouped tags, projects */

.badge { display: inline-flex; align-items: center; height: 20px; padding: 0 7px; border-radius: 4px; border: 1px solid var(--rule-strong); font-size: 12px; color: var(--muted); line-height: 1; vertical-align: middle; }

.tag-group { display: grid; grid-template-columns: minmax(140px, 200px) 1fr; gap: 12px 32px; padding: 22px 0; border-top: 1px solid var(--rule); align-items: baseline; }
.tag-group:first-of-type { border-top-color: var(--ink); }
.tag-group h2 { font-size: 18px; display: flex; align-items: center; gap: 10px; }
.tag-group h2::before { content: ""; width: 12px; height: 18px; border-radius: 2px; background: var(--c); }
.tag-group .tag-cloud { padding: 0; }
.tag-pill { scroll-margin-top: 90px; }
.tag-index { margin-top: 40px; border-top: 1px solid var(--ink); display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 0 40px; }
.tag-entry { padding: 18px 0 8px; border-bottom: 1px solid var(--rule); scroll-margin-top: 80px; }
.tag-entry:target h3 { color: var(--link); }
.tag-entry h3 { font-size: 16px; }
.tag-entry h3 small { font-weight: 400; color: var(--muted); font-size: 13px; margin-left: 6px; }
@media (max-width: 640px) { .tag-group { grid-template-columns: 1fr; } }

.track-row--stack { height: auto; min-height: 38px; }
.track-row--stack .track-lane { height: calc(var(--n, 1) * 9px + 14px); }
.track-row--stack .track-lane::before { display: none; }
.feature--span { top: calc(7px + var(--i, 0) * 9px); transform: none; height: 6px; margin-left: 0; min-width: 6px; border-radius: 3px; }
.feature--span:hover, .feature--span:focus-visible { transform: scaleY(1.6); }
.feature--span .feature-tip { transform: translateX(-50%) scaleY(.625); bottom: calc(100% + 6px); }
.project-track .track-label { font-size: 12.5px; white-space: normal; line-height: 1.35; }
.project-track .track-row { grid-template-columns: 150px 1fr; padding: 4px 0; }
.project-track .track-ruler { margin-left: 150px; }
@media (max-width: 640px) {
  .project-track .track-row { grid-template-columns: 76px 1fr; }
  .project-track .track-ruler { margin-left: 76px; }
  .project-track .track-tick:nth-child(even) span { display: none; }
}

.proj-group { display: grid; grid-template-columns: minmax(180px, 260px) 1fr; gap: 12px 40px; padding: 28px 0; border-top: 1px solid var(--rule); scroll-margin-top: 70px; }
.proj-group:first-child { border-top-color: var(--ink); }
.proj-group-head h2 { font-size: 20px; display: flex; align-items: center; gap: 10px; }
.proj-group-head h2::before { content: ""; width: 14px; height: 22px; border-radius: 2px; background: var(--c); flex: none; }
.proj-group-head p { color: var(--muted); margin-top: 8px; font-size: 14.5px; }
.proj-list { list-style: none; margin: 0; padding: 0; }
.proj-list li { scroll-margin-top: 80px; }
.proj-list a { display: grid; grid-template-columns: 1fr auto; gap: 2px 20px; padding: 12px 0; border-bottom: 1px dashed var(--rule); color: var(--ink); }
.proj-list li:last-child a { border-bottom: 0; }
.proj-list li:target a { background: var(--mark); }
.proj-name { font: 600 15px/1.5 var(--mono); letter-spacing: -.01em; overflow-wrap: anywhere; }
.proj-list a:hover .proj-name { color: var(--link); }
.proj-desc { grid-column: 1; color: var(--muted); font-size: 14.5px; line-height: 1.65; }
.proj-meta { grid-column: 2; grid-row: 1; display: flex; gap: 14px; align-items: baseline; font-size: 12.5px; color: var(--muted); white-space: nowrap; }
.proj-early { margin-top: 28px; font-size: 14px; color: var(--muted); }
.proj-early a { color: var(--muted); text-decoration: underline; text-decoration-color: var(--rule-strong); text-underline-offset: 3px; }
.proj-list--home a { grid-template-columns: 4px 1fr auto; column-gap: 16px; }
.proj-list--home a::before { content: ""; grid-row: 1 / 3; border-radius: 2px; background: var(--c); }
.proj-list--home .proj-desc { grid-column: 2; }
.proj-list--home .proj-meta { grid-column: 3; }
.proj-list--home li a { border-bottom: 1px solid var(--rule); }
@media (max-width: 720px) {
  .proj-group { grid-template-columns: 1fr; }
  .proj-list a { grid-template-columns: 1fr; }
  .proj-meta { grid-column: 1; grid-row: auto; }
  .proj-list--home a { grid-template-columns: 4px 1fr; }
  .proj-list--home .proj-meta { grid-column: 2; }
  .proj-list--home a::before { grid-row: 1 / 4; }
}

.footer-quote { margin: 0; }
.footer-quote blockquote { margin: 0; color: var(--ink-2); font-size: 16px; line-height: 1.7; }
.footer-quote figcaption { display: flex; align-items: baseline; gap: 14px; margin-top: 6px; }
.footer-quote cite { font-style: normal; color: var(--muted); font-size: 13px; }
.quote-next { background: none; border: 0; padding: 0; color: var(--link); font-size: 13px; cursor: pointer; }
.quote-next:hover { color: var(--link-hover); }

/* ---------------------------------------------------------------- resume */

.resume-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px 48px; align-items: end; border-bottom: 1px solid var(--ink); }
.resume-role { font: 400 14px/1.4 var(--mono); color: var(--muted); margin-top: 10px !important; }
.resume-summary { color: var(--ink-2) !important; margin-top: 16px !important; max-width: var(--measure); font-size: 16.5px !important; }
.resume-contact { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; font-size: 14.5px; }
.resume-contact a { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-2); }
.resume-contact a:hover { color: var(--link); }
.resume-contact .btn { margin-top: 6px; }
@media (max-width: 760px) { .resume-head { grid-template-columns: 1fr; } }

.resume-section { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 12px 40px; padding: 32px 0; border-bottom: 1px solid var(--rule); }
.resume-section h2 { font-size: 20px; }
@media (max-width: 760px) { .resume-section { grid-template-columns: 1fr; } }

.paper-list { list-style: none; margin: 0; padding: 0; }
.paper-list li { display: grid; grid-template-columns: 56px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px dashed var(--rule); }
.paper-list li:first-child { padding-top: 0; }
.paper-list .date { padding-top: 4px; }
.paper-title { color: var(--ink); font-weight: 600; line-height: 1.5; font-size: 16px; }
.paper-title:hover { color: var(--link); }
.paper-authors { color: var(--muted); font-size: 14px; margin-top: 4px; line-height: 1.6; }
.paper-authors strong { color: var(--ink); }
.paper-venue { font-size: 14px; color: var(--ink-2); margin-top: 4px; display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; }
.badge-strong { border-color: var(--ink); color: var(--ink); }
.paper-pending { margin: 18px 0 0; padding-left: 1.2em; color: var(--ink-2); font-size: 15px; }
.paper-pending li + li { margin-top: 4px; }
.paper-note { margin-top: 14px; font-size: 12.5px; color: var(--muted); }
@media (max-width: 560px) { .paper-list li { grid-template-columns: 1fr; gap: 4px; } }

.skill-list { margin: 0; display: grid; gap: 18px; }
.skill-list div { display: grid; grid-template-columns: 140px 1fr; gap: 6px 20px; }
.skill-list dt { font-weight: 600; color: var(--ink); }
.skill-list dd { margin: 0; color: var(--ink-2); line-height: 1.75; }
.skill-list a { text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--link) 40%, transparent); text-underline-offset: 3px; }
@media (max-width: 560px) { .skill-list div { grid-template-columns: 1fr; } }
.award-list { margin: 0; padding-left: 1.2em; color: var(--ink-2); }

@media print {
  :root, :root[data-theme="dark"] { --paper: #fff; --paper-2: #fff; --ink: #18202B; --ink-2: #333D4A; --muted: #5B6573; --rule: #D9DDD6; --rule-strong: #B9BFB6; color-scheme: light; }
  .site-header, .site-footer, .drawer, .search-modal, .to-top, .skip-link, .reading-progress, .no-print { display: none !important; }
  body { font-size: 12.5px; }
  .page-head { padding-top: 0; }
  .resume-section { padding: 16px 0; break-inside: avoid-page; }
  .paper-list li { break-inside: avoid; }
  a { color: inherit !important; }
}