/* Kubexa site: one motif, brand palette, JetBrains Mono.
   The device is the hexagon: cropped plate behind the first screen, the mask on
   every screenshot, the bullet at text size, and the band that splits the page. */

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/jetbrains-mono-400.woff2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/assets/jetbrains-mono-500.woff2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/assets/jetbrains-mono-700.woff2") format("woff2");
}

:root {
  color-scheme: light;
  --ink: #0b3d2e;
  --ink-soft: #17603f;
  --accent: #159a68;
  --bg: #f7faf8;
  --panel: #ffffff;
  --paper: #f0fdf4;
  --rule: #cfdcd4;
  --rule-soft: #e3ece7;
  --muted: #5c6b64;
  --body: #12211a;
  --code-bg: #0d2018;
  --code-fg: #dcefe4;
  --shadow: 0 18px 40px rgba(11, 61, 46, 0.12);
  /* timeline markers: fire marks an outage, the win marker reuses the accent */
  --fire: #c2410c;
  --fire-soft: #fdece4;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  /* brand mark: one SVG, these four decide how it paints per theme */
  --logo-hex-fill: #0b3d2e;
  --logo-hex-stroke: #34d399;
  --logo-hex-width: 14;
  --logo-glyph: #f0fdf4;
  --logo-word: #0b3d2e;
  --hex: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
  --wall: 1200px;
  --gutter: 32px;
  --step-1: 12.5px;
  --step-2: 16px;
  --step-3: 21px;
  --step-4: clamp(30px, 3.4vw, 44px);
  --step-5: clamp(44px, 7.2vw, 92px);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --ink: #e9f5ee;
  --ink-soft: #7fdcae;
  --accent: #34d399;
  --bg: #080d0a;
  --panel: #0f1712;
  --paper: #10241c;
  --rule: #22322a;
  --rule-soft: #1a2620;
  --muted: #8ea79a;
  --body: #deeae2;
  --code-bg: #050a07;
  --code-fg: #d6e8dd;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.5);
  --fire: #fb923c;
  --fire-soft: #2a1409;
  --logo-hex-fill: transparent;
  --logo-hex-stroke: #34d399;
  --logo-hex-width: 20;
  --logo-glyph: #f0fdf4;
  --logo-word: #f0fdf4;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --ink: #e9f5ee;
    --ink-soft: #7fdcae;
    --accent: #34d399;
    --bg: #080d0a;
    --panel: #0f1712;
    --paper: #10241c;
    --rule: #22322a;
    --rule-soft: #1a2620;
    --muted: #8ea79a;
    --body: #deeae2;
    --code-bg: #050a07;
    --code-fg: #d6e8dd;
    --shadow: 0 18px 40px rgba(0, 0, 0, 0.5);
    --fire: #fb923c;
    --fire-soft: #2a1409;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font: var(--step-2)/1.7 var(--mono);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--ink); text-decoration-color: var(--rule); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--accent); }
h1, h2, h3 { letter-spacing: -0.035em; text-wrap: balance; }

/* ---------- masthead ---------- */

.masthead {
  max-width: var(--wall);
  margin: 0 auto;
  padding: 20px var(--gutter) 0;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand { display: inline-flex; align-items: center; text-decoration: none; flex: none; }
.brandlockup { display: inline-flex; align-items: center; }
.brandlockup svg.lockup { display: block; height: 34px; width: auto; }

/* One lockup, two themes: every fill is a variable, so nothing is duplicated in
   the DOM and no second SVG is downloaded for the variant that is not in use. */
.lk-hex { fill: var(--logo-hex-fill); stroke: var(--logo-hex-stroke); stroke-width: var(--logo-hex-width); stroke-linejoin: miter; }
.lk-glyph { fill: var(--logo-glyph); }
.lk-word { fill: var(--logo-word); font-family: var(--mono); font-size: 172px; font-weight: 700; letter-spacing: -3px; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --logo-hex-fill: transparent;
    --logo-hex-width: 20;
    --logo-word: #f0fdf4;
  }
}

.topnav { display: flex; align-items: center; gap: 22px; font: 500 var(--step-1)/1 var(--mono); }
.topnav a { color: var(--muted); text-decoration: none; padding-bottom: 4px; }
.topnav a:hover, .topnav a.on { color: var(--ink); }
.topnav a.on { box-shadow: inset 0 -2px 0 var(--accent); }

.actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.search-trigger, .theme-toggle {
  display: inline-flex; align-items: center; gap: 8px;
  height: 34px; padding: 0 12px;
  font: 500 var(--step-1)/1 var(--mono);
  color: var(--muted); background: var(--panel);
  border: 1px solid var(--rule); border-radius: 0;
  cursor: pointer;
}
.search-trigger { padding: 0 12px; gap: 8px; }
.search-trigger__key {
  display: inline-grid; place-items: center;
  width: 16px; height: 16px;
  border: 1px solid var(--rule); border-radius: 2px;
  font-size: 10px; color: var(--muted);
}
.search-trigger__label { color: var(--muted); letter-spacing: 0.04em; }
.theme-toggle { width: 36px; padding: 0; justify-content: center; }
.search-trigger:hover, .theme-toggle:hover { color: var(--ink); border-color: var(--ink); }
.search-trigger svg, .theme-toggle svg { display: block; }

.wip-notice {
  max-width: var(--wall);
  margin: 16px auto 0;
  padding: 10px var(--gutter);
  font: 400 var(--step-1)/1.6 var(--mono);
  color: var(--muted);
  border-top: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px;
}
.wip-notice__tag {
  font: 500 10.5px/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink); background: var(--paper); padding: 4px 6px;
  border: 1px solid var(--rule);
}

.badge {
  display: inline-block; margin-left: 10px; vertical-align: middle;
  font: 500 10.5px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase;
  padding: 4px 7px; border: 1px solid var(--rule); color: var(--muted);
}
.badge--wip { color: #8a5a00; border-color: #d9b96a; background: #fdf5e4; }
:root[data-theme="dark"] .badge--wip { color: #f3c46b; border-color: #6b5323; background: #221a0b; }

/* ---------- first screen ---------- */

.hero {
  position: relative;
  max-width: var(--wall);
  margin: 0 auto;
  padding: clamp(36px, 5vh, 64px) var(--gutter) clamp(8px, 1.5vh, 20px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.66fr);
  gap: clamp(24px, 4vw, 64px);
  align-items: center;
  overflow: hidden;
}
.hero__mark {
  width: 100%;
  aspect-ratio: 1 / 1;
  place-self: center;
}
.hero__mark svg { display: block; width: 100%; height: auto; }
.hero__eyebrow {
  position: relative; z-index: 1;
  font: 500 var(--step-1)/1.5 var(--mono); letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--muted); margin: 0 0 22px;
}
.hero h1 {
  position: relative; z-index: 1;
  font-size: clamp(36px, 4.9vw, 66px);
  line-height: 1.0;
  margin: 0;
  max-width: 20ch;
  font-weight: 700;
  color: var(--ink);
}
.hero__support {
  position: relative; z-index: 1;
  margin: 34px 0 0;
  max-width: 46ch;
  font-size: var(--step-2);
  color: var(--body);
}
.hero__actions {
  position: relative; z-index: 1;
  margin-top: 28px;
  display: flex; align-items: center; gap: 18px;
}

.button {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px;
  font: 500 var(--step-1)/1 var(--mono);
  letter-spacing: 0.08em; text-transform: uppercase; text-decoration: none;
  color: var(--bg); background: var(--ink);
  border: 1px solid var(--ink);
}
.button:hover { background: var(--accent); border-color: var(--accent); color: var(--ink); }
.button--quiet { color: var(--ink); background: transparent; border-color: var(--rule); }
.button--quiet:hover { color: var(--ink); background: var(--paper); border-color: var(--ink); }

/* ---------- section frame ---------- */

.section { max-width: var(--wall); margin: 0 auto; padding: clamp(48px, 7vh, 96px) var(--gutter) 0; }
.section__head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 24px;
  padding-bottom: 14px; border-bottom: 1px solid var(--rule);
  margin-bottom: 32px;
}
.section__head h2 { font-size: var(--step-3); margin: 0; font-weight: 700; }
.section__head p { margin: 0; font-size: var(--step-1); color: var(--muted); max-width: 46ch; }

/* band: the motif at full width, twice */
.band {
  margin: clamp(24px, 4vh, 48px) 0 0;
  height: 64px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 0 10px;
  overflow: hidden;
}
.band span { background: var(--rule); clip-path: var(--hex); }
.band span:nth-child(3n+2) { background: var(--accent); }
.band span:nth-child(3n) { background: var(--ink); }

/* ---------- layer atlas ---------- */

.layers { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.layer { display: grid; grid-template-rows: auto auto 1fr auto; gap: 10px; padding: 22px 20px; background: var(--panel); text-decoration: none; color: inherit; }
.layer:hover, .layer:focus-visible { background: var(--ink); color: var(--bg); outline: none; }
.layer:hover .layer__index, .layer:hover .layer__meta, .layer:hover .layer__blurb,
.layer:focus-visible .layer__index, .layer:focus-visible .layer__meta, .layer:focus-visible .layer__blurb { color: var(--bg); opacity: 0.85; }
.layer:hover .ticon, .layer:focus-visible .ticon { color: var(--bg); }
.layer__head { display: flex; align-items: center; gap: 8px; }
.layer__index { font: 500 11px/1 var(--mono); letter-spacing: 0.12em; color: var(--muted); }
.layer__head .badge { margin-left: auto; }
.layer__title { font-size: 18px; font-weight: 700; letter-spacing: -0.02em; }
.layer__blurb { font-size: 13.5px; line-height: 1.65; color: var(--muted); }
.layer__foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 4px; }
.layer__meta { font: 500 10.5px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }

.layer--index { grid-column: 1 / -1; }

.showcase__thumbs { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 22px; }
.showcase__thumbs img { width: 100%; height: auto; display: block; border: 1px solid var(--rule); }

@media (max-width: 980px) {
  .layer--index { grid-column: 1 / -1; }
  .showcase__thumbs { grid-template-columns: 1fr; }
}

.ticons { display: inline-flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.ticon { display: inline-flex; }
.ticon__img { display: block; width: 19px; height: 19px; object-fit: contain; }
.wide .ticons, .prose > .ticons { margin: 8px 0 24px; gap: 14px; }
.wide .ticon__img, .prose > .ticons .ticon__img { width: 23px; height: 23px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* ---------- timeline: one rail, a hexagon per entry, fire on the outages ---------- */

.timeline { list-style: none; margin: 6px 0 0; padding: 0; }
.titem { position: relative; display: grid; grid-template-columns: 20px minmax(0, 1fr); column-gap: 16px; padding-bottom: 30px; }
.titem::before { content: ""; position: absolute; left: 9px; top: 26px; bottom: 0; width: 2px; background: var(--rule-soft); }
.titem:last-child::before { display: none; }
.tnode { grid-column: 1; grid-row: 1; position: relative; z-index: 1; width: 20px; height: 20px; margin-top: 3px; display: grid; place-items: center; background: var(--rule); color: var(--panel); clip-path: var(--hex); }
.tnode--win { background: var(--accent); }
.tnode--break { background: var(--fire); }
.tnode__glyph { width: 12px; height: 12px; display: block; }
.tnode--break .tnode__glyph { width: 13px; height: 13px; }
.titem__date { grid-column: 2; font-size: 11.5px; letter-spacing: 0.06em; color: var(--muted); }
.titem__content { grid-column: 2; }
.titem__title { margin: 2px 0 7px; font-size: var(--step-3); line-height: 1.25; color: var(--ink); }
.titem__body { margin: 0; max-width: 60ch; }
.titem__meta { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; margin-top: 12px; }
.titem__meta .ticons { gap: 8px; }
.titem__meta .ticon__img { width: 18px; height: 18px; }
.tref, .thash { font-size: 11.5px; padding: 2px 7px; border: 1px solid var(--rule-soft); background: var(--panel); color: var(--muted); }
.thash { color: var(--ink-soft); }
.timeline__why { margin: 30px 0 0; padding-top: 20px; border-top: 1px solid var(--rule-soft); color: var(--muted); max-width: 62ch; }

/* ---------- status: an externally shared Grafana dashboard in an iframe ---------- */

.status-bar { display: flex; align-items: center; gap: 10px; margin: 18px 0 14px; font-size: var(--step-1); color: var(--muted); }
.status-bar__dot { width: 8px; height: 8px; background: var(--accent); clip-path: var(--hex); animation: pulse 2.4s ease-in-out infinite; }
.status-bar__link { margin-left: auto; color: var(--ink); }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
@media (prefers-reduced-motion: reduce) { .status-bar__dot { animation: none; } }
.status-embed { border: 1px solid var(--rule); background: var(--panel); padding: 8px; }
.status-embed__frame { display: block; width: 100%; height: clamp(420px, 62vh, 680px); border: 0; }
.status-note { color: var(--muted); font-size: var(--step-1); margin: 14px 0 0; max-width: 78ch; }
.status-note code { font-size: inherit; }
.titem--break .tnode { box-shadow: 0 0 0 3px var(--fire-soft); }

@media (min-width: 900px) {
  .titem { grid-template-columns: 20px 104px minmax(0, 1fr); column-gap: 0; }
  .titem__date { grid-column: 2; text-align: right; padding: 4px 22px 0 0; }
  .titem__content { grid-column: 3; padding-left: 22px; border-left: 1px solid transparent; }
}

/* ---------- showcase: a real crop of the product ---------- */

.showcase { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(24px, 4vw, 56px); align-items: center; }
.showcase__shot { background: var(--panel); border: 1px solid var(--rule); padding: 10px; }
.showcase__shot img { display: block; width: 100%; height: auto; }
.showcase__note { font-size: var(--step-2); margin: 0 0 18px; }
.showcase__list { list-style: none; margin: 0; padding: 0; font-size: var(--step-2); }
.showcase__list li { position: relative; padding-left: 26px; margin: 10px 0; }
.showcase__list li::before {
  content: ""; position: absolute; left: 0; top: 0.55em;
  width: 12px; height: 12px; background: var(--accent); clip-path: var(--hex);
}

/* ---------- stats ---------- */

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.stats div { background: var(--panel); padding: 22px 20px; }
.stats dt { font: 500 10.5px/1.5 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.stats dd { margin: 8px 0 0; font-size: clamp(26px, 3vw, 38px); font-weight: 700; letter-spacing: -0.03em; color: var(--ink); }
.stats small { display: block; margin-top: 6px; font-size: 12.5px; color: var(--muted); }

/* ---------- faq ---------- */

.faq { display: grid; gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.faq details { background: var(--panel); padding: 0; }
.faq summary {
  cursor: pointer; padding: 18px 20px; font-size: var(--step-2); font-weight: 500;
  list-style: none; display: flex; justify-content: space-between; gap: 16px; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 20px; }
.faq details[open] summary::after { content: "–"; }
.faq p { margin: 0; padding: 0 20px 20px; color: var(--muted); font-size: 14.5px; max-width: 80ch; }

/* ---------- closing ---------- */

.closing { max-width: var(--wall); margin: 0 auto; padding: clamp(56px, 8vh, 110px) var(--gutter); }
.closing p { font-size: var(--step-4); line-height: 1.1; margin: 0 0 28px; max-width: 26ch; letter-spacing: -0.035em; font-weight: 700; }
.closing p em { font-style: normal; color: var(--accent); }

/* ---------- lists / docs ---------- */

.recent { max-width: var(--wall); margin: 0 auto; padding: 0 var(--gutter) clamp(48px, 7vh, 90px); }
.plain { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.plain li { display: flex; align-items: baseline; justify-content: space-between; gap: 18px; padding: 14px 0; border-bottom: 1px solid var(--rule-soft); }
.plain a { text-decoration: none; font-weight: 500; font-size: var(--step-2); }
.when { font: 500 var(--step-1)/1 var(--mono); color: var(--muted); }

.wide { max-width: var(--wall); margin: 0 auto; padding: clamp(40px, 6vh, 72px) var(--gutter) 96px; }
.page-title { font-size: var(--step-4); line-height: 1.06; margin: 0 0 16px; }
.eyebrow { font: 500 var(--step-1)/1.5 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin: 0 0 20px; }
.eyebrow a { color: var(--muted); }
.lede { font-size: var(--step-3); line-height: 1.45; max-width: 62ch; margin: 0 0 26px; letter-spacing: -0.015em; }

.index-block { margin: 48px 0 0; }
.index-block h2 { font-size: var(--step-3); margin: 0 0 8px; }
.index-block h2 a { text-decoration: none; }
.blurb { display: block; color: var(--muted); font-size: 13.5px; line-height: 1.65; max-width: 76ch; margin: 0 0 16px; }

.doclist { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.doclist li { padding: 14px 0; border-bottom: 1px solid var(--rule-soft); }
.doclist a { font-weight: 500; text-decoration: none; display: block; font-size: var(--step-2); }
.doclist a:hover { color: var(--ink-soft); }
.doclist .blurb { margin: 4px 0 0; }

.postlist { list-style: none; margin: 36px 0 0; padding: 0; border-top: 1px solid var(--rule); }
.postlist li { padding: 20px 0; border-bottom: 1px solid var(--rule-soft); display: grid; gap: 4px; }
.postlist a { font-size: var(--step-3); font-weight: 700; text-decoration: none; }

.reader {
  max-width: 1200px; margin: 0 auto;
  padding: clamp(36px, 5vh, 64px) var(--gutter) 96px;
  display: grid; grid-template-columns: 236px minmax(0, 1fr); gap: 56px; align-items: start;
}
/* A grid item defaults to min-width:auto, so one long line of quoted YAML used to
   stretch the article and push the whole page past the viewport on a phone. */
.reader > * { min-width: 0; }
.sidebar { position: sticky; top: 24px; font-size: 13px; }
.sidebar .back { display: block; font: 500 var(--step-1)/1.4 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); text-decoration: none; margin-bottom: 14px; }
.toc { list-style: none; margin: 0 0 18px; padding: 0; border-left: 1px solid var(--rule); }
.toc a { display: block; padding: 6px 0 6px 12px; color: var(--muted); text-decoration: none; border-left: 2px solid transparent; margin-left: -1px; }
.toc a:hover { color: var(--ink); border-left-color: var(--accent); }
.toc__h3 a { padding-left: 24px; font-size: 12.5px; }
.raw { font: 500 var(--step-1)/1 var(--mono); letter-spacing: 0.06em; color: var(--muted); text-decoration: none; }
.raw:hover { color: var(--ink); }

.prose { max-width: 74ch; min-width: 0; }
/* Long-form pages carry no sidebar, so they get a centred measure. The reader grid
   dropped the article into its right cell, which left the column narrow and off-centre. */
.prose-solo { max-width: calc(74ch + 2 * var(--gutter)); margin: 0 auto; padding: clamp(36px, 5vh, 64px) var(--gutter) 96px; }
.prose-solo .prose { margin: 0 auto; }
.prose > h1 { font-size: var(--step-4); line-height: 1.08; margin: 0 0 14px; }
.prose h2 { font-size: var(--step-3); line-height: 1.25; margin: 44px 0 12px; scroll-margin-top: 24px; }
.prose h3 { font-size: 16.5px; margin: 30px 0 8px; scroll-margin-top: 24px; }
.prose h2 + p, .prose h3 + p { margin-top: 0; }
.prose p { margin: 0 0 18px; }
.prose > .lede { color: var(--muted); font-size: 16px; line-height: 1.6; margin-bottom: 28px; }
.prose ul, .prose ol { margin: 0 0 18px; padding-left: 22px; }
.prose li { margin: 6px 0; }
.prose li::marker { color: var(--accent); }
.prose blockquote { margin: 22px 0; padding: 4px 0 4px 18px; border-left: 3px solid var(--accent); color: var(--muted); }
.prose hr { border: 0; border-top: 1px solid var(--rule); margin: 36px 0; }
.prose table { display: block; overflow-x: auto; max-width: 100%; width: 100%; border-collapse: collapse; font-size: 13.5px; margin: 0 0 22px; }
.prose th, .prose td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--rule-soft); vertical-align: top; }
.prose th { font: 500 10.5px/1.4 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.prose img { max-width: 100%; height: auto; }
.prose code { font: 0.92em/1.5 var(--mono); background: color-mix(in srgb, var(--ink) 8%, transparent); padding: 0.12em 0.36em; }
.prose pre { margin: 0 0 22px; padding: 18px; overflow-x: auto; max-width: 100%; font: 12.5px/1.7 var(--mono); background: var(--code-bg); color: var(--code-fg); border: 1px solid var(--rule); position: relative; }
.prose pre code { background: none; padding: 0; font-size: inherit; color: inherit; }
.codebar {
  position: absolute; top: 8px; right: 8px;
  font: 500 10px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--code-fg); background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 4px 8px; cursor: pointer; opacity: 0; transition: opacity 120ms ease;
}
pre:hover .codebar, .codebar:focus-visible { opacity: 1; }

.hl-k { color: #ffb4a2; }
.hl-s { color: #a7e0a0; }
.hl-c { color: #7f9689; font-style: italic; }
.hl-n { color: #f6c177; }
.hl-f { color: #8fd3f4; }
.hl-t { color: #c3a6ff; }

.pager { display: flex; gap: 16px; margin: 48px 0 0; padding-top: 20px; border-top: 1px solid var(--rule); }
.pager a { flex: 1; text-decoration: none; font-weight: 500; font-size: 14px; }
.pager a span { display: block; font: 500 10px/1.4 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.pager .next { text-align: right; }

.colophon {
  max-width: var(--wall); margin: 0 auto;
  padding: 26px var(--gutter) 48px;
  border-top: 1px solid var(--rule);
  display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  font: 500 var(--step-1)/1.6 var(--mono); color: var(--muted);
}
.colophon nav { display: flex; gap: 18px; }
.colophon a { color: var(--muted); text-decoration: none; }
.colophon a:hover { color: var(--ink); }

.search-overlay { position: fixed; inset: 0; background: color-mix(in srgb, var(--bg) 92%, transparent); display: none; z-index: 40; padding: 12vh 20px 20px; }
.search-overlay[data-open="true"] { display: block; }
.search-panel { max-width: 660px; margin: 0 auto; background: var(--panel); border: 1px solid var(--rule); box-shadow: var(--shadow); }
.search-panel input { width: 100%; border: 0; border-bottom: 1px solid var(--rule); padding: 16px 18px; font: 15px/1.4 var(--mono); background: transparent; color: var(--body); outline: none; }
.search-results { list-style: none; margin: 0; padding: 6px; max-height: 46vh; overflow: auto; }
.search-results li a { display: block; padding: 9px 10px; text-decoration: none; font-size: 13.5px; }
.search-results li a:hover, .search-results li a[aria-selected="true"] { background: var(--paper); }
.search-results .sec { font: 500 10px/1.4 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.search-empty { padding: 16px 18px; color: var(--muted); font-size: 13.5px; }

@media (max-width: 980px) {
  .hero { min-height: 0; grid-template-columns: 1fr; }
  .hero__mark { display: none; }
  .showcase { grid-template-columns: 1fr; }
  .masthead { flex-wrap: wrap; row-gap: 12px; }
  .reader { grid-template-columns: 1fr; gap: 26px; }
  .sidebar { position: static; }
  .toc { border-left: 0; display: flex; flex-wrap: wrap; gap: 4px 16px; }
  .toc a { padding-left: 0; border-left: 0; }
}

@media (max-width: 620px) {
  :root { --gutter: 20px; --step-5: clamp(38px, 12vw, 56px); }
  .search-trigger__label { display: none; }
  .search-trigger { padding: 0 8px; }
  .masthead { gap: 16px; }
  .topnav { order: 3; flex-basis: 100%; gap: 18px; }
  .band { height: 56px; grid-auto-columns: 44px; justify-content: center; }
  .section__head { flex-direction: column; align-items: flex-start; row-gap: 6px; }
  .section__head p { max-width: 100%; }
}

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