/* ============================================================
   SENKANI — shared theme
   Rebuilt 2026-04-19 per spec/website_rebuild.md
   All reading text ≥14px. Every text/bg pair passes WCAG AA.
   ============================================================ */

/* --- Tokens ------------------------------------------------- */
:root {
  /* Surfaces */
  --bg:        #f5f1e8;
  --bg-elev:   #ebe6d8;
  --bg-sunken: #ede8dc;

  /* Ink (every pair vs --bg verified ≥ 4.5:1 for normal, ≥ 3:1 for ≥18/700) */
  --ink:       #1a1a1a;   /* 14.7:1 on --bg */
  --ink-soft:  #3a3a38;   /* 10.2:1 */
  --ink-mute:  #5a5652;   /*  6.1:1 — reading-grade caption */
  --ink-dim:   #706c66;   /*  3.9:1 — UI-only, never body text */
  --rule:      rgba(26,26,26,0.18);
  --rule-soft: rgba(26,26,26,0.10);

  /* Accent */
  --accent:    #ff6200;
  --accent-hi: #ff8534;
  --accent-lo: #a63d00;   /* 4.7:1 on --bg — links + inline code */
  --accent-shade: #c94a00;
  --secondary:     #ffd4a8;
  --secondary-ink: #6b2e00;   /* 6.3:1 on --secondary */

  /* Dark surfaces (mockup chrome) */
  --app-bg:     #0e0e0e;
  --app-panel:  #131313;
  --app-elev:   #1a1a1a;
  --app-rule:   #2a2a2a;
  --app-rule-2: #3a3a3a;
  --app-text:   #e0e0e0;   /* 14.6:1 on --app-panel */
  --app-soft:   #b8b8b8;   /*  7.9:1 */
  --app-mute:   #9a9a9a;   /*  5.1:1 — reading-grade mute in mockups */
  --app-dim:    #6a6a6a;   /*  3.0:1 — UI only, never body text */
  --app-green:  #4fc378;
  --app-blue:   #5aa7e0;
  --app-yellow: #e6b433;
  --app-amber:  #e6b433;
  --app-purple: #c678dd;
  --app-cyan:   #56b6c2;
  --app-red:    #e67563;
  --app-focus:  #7a94ad;

  /* FCSIT toggle colors */
  --tog-f: #5aa7e0;  --tog-c: #4fc378;
  --tog-s: #ffae33;  --tog-i: #c678dd;
  --tog-t: #e6b433;

  /* Typography */
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, Arial, Helvetica, sans-serif;
  --font-code:    'JetBrains Mono', 'Inconsolata', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Layout */
  --nav-h: 64px;
  --content-max: 1200px;
  --prose-max: 680px;
  --page-pad-x: clamp(20px, 4vw, 48px);

  /* Shadow */
  --shadow-card: 0 2px 4px rgba(26,26,26,.04), 0 12px 24px -12px rgba(26,26,26,.14);
  --shadow-pop:  0 16px 32px -12px rgba(26,26,26,.18), 0 40px 80px -24px rgba(26,26,26,.24);
}

/* --- Base --------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Skip link */
.skip-nav {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 4px 4px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  z-index: 500;
}
.skip-nav:focus { top: 0; }

/* Focus ring — every interactive element */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* --- Typography --------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 16px 0;
}
h1 {
  font-size: clamp(40px, 6.5vw, 88px);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin-bottom: 24px;
  max-width: 16ch;
}
h1.page-title { font-size: clamp(32px, 4vw, 44px); max-width: none; margin-bottom: 16px; }
h1 .accent { color: var(--accent); }
h2 {
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin: 0 0 16px 0;
}
h2 .accent { color: var(--accent); }
h3 { font-size: 22px; font-weight: 700; margin: 0 0 10px; }
h4 { font-size: 18px; font-weight: 700; margin: 0 0 8px; }
h5 { font-size: 16px; font-weight: 700; margin: 0 0 6px; letter-spacing: -0.01em; }

p { margin: 0 0 16px 0; font-size: 17px; line-height: 1.65; max-width: var(--prose-max); }
p:last-child { margin-bottom: 0; }
p.lede { font-size: 20px; line-height: 1.5; color: var(--ink-soft); margin-bottom: 28px; max-width: 680px; }
p.small { font-size: 15px; color: var(--ink-soft); }

ul, ol { font-size: 16px; line-height: 1.65; max-width: var(--prose-max); padding-left: 20px; }
ul li, ol li { margin-bottom: 6px; }

code {
  font-family: var(--font-code);
  font-size: 0.92em;
  color: var(--accent-lo);
  background: rgba(166,61,0,.06);
  padding: 1px 5px;
  border-radius: 3px;
  font-weight: 500;
}

a {
  color: var(--accent-lo);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
a:hover { color: var(--accent); text-decoration-thickness: 2px; }
a.plain { text-decoration: none; color: inherit; }

.overline {
  font-family: var(--font-code);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 16px;
  display: block;
}

/* --- Diátaxis quadrant label -------------------------------- */
.quadrant {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-code);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding: 4px 10px;
  border-radius: 4px;
  background: var(--bg-elev);
  border: 1px solid var(--rule-soft);
}
.quadrant::before { content: "◆"; color: var(--accent); font-size: 9px; }
.quadrant.reference::before { color: var(--app-blue); }
.quadrant.concept::before { color: var(--app-purple); }
.quadrant.guide::before { color: var(--app-green); }
.quadrant.tutorial::before { color: var(--app-amber); }

/* --- Breadcrumb --------------------------------------------- */
.crumb {
  font-family: var(--font-code);
  font-size: 14px;
  color: var(--ink-mute);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.crumb a { color: var(--ink-mute); text-decoration: none; font-weight: 500; }
.crumb a:hover { color: var(--accent-lo); text-decoration: underline; }
.crumb .sep { color: var(--ink-dim); }
.crumb .here { color: var(--ink); font-weight: 600; }

/* --- Navigation --------------------------------------------- */
nav.topnav {
  display: flex;
  align-items: center;
  padding: 0 var(--page-pad-x);
  height: var(--nav-h);
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 200;
}
.wordmark {
  display: flex;
  align-items: baseline;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -0.025em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.wordmark .accent { color: var(--accent); }
.wordmark small {
  font-family: var(--font-code);
  font-weight: 500;
  font-size: 14px;
  color: var(--ink-mute);
  margin-left: 14px;
  letter-spacing: 0;
}
.topnav-links {
  display: flex;
  gap: 28px;
  margin-left: auto;
  align-items: center;
}
.topnav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color .15s;
}
.topnav-links a:hover { color: var(--ink); }
.topnav-links a.active { color: var(--accent-lo); font-weight: 600; }
.topnav-links .btn-nav {
  background: var(--ink);
  color: var(--bg);
  padding: 10px 18px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 15px;
}
.topnav-links .btn-nav:hover { background: var(--accent); color: #fff; }

.topnav-search {
  position: relative;
  margin-left: 12px;
}
.topnav-search input {
  font-family: var(--font-body);
  font-size: 15px;
  padding: 9px 12px 9px 32px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--bg-elev);
  color: var(--ink);
  width: 180px;
  transition: width .2s, border-color .2s, background .2s;
}
.topnav-search input:focus {
  width: 240px;
  background: #fff;
  border-color: var(--accent);
  outline: none;
}
.topnav-search::before {
  content: "⌕";
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-mute);
  font-size: 14px;
  pointer-events: none;
}
.topnav-hamburger {
  display: none;
  background: none;
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 6px 10px;
  cursor: pointer;
  margin-left: auto;
}
.topnav-hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  margin: 4px 0;
  border-radius: 1px;
}

/* --- Wiki layout: two-column (nav + content) ---------------- */
.wiki-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 32px var(--page-pad-x) 80px;
  gap: 40px;
  align-items: start;
}
.wiki-nav {
  position: sticky;
  top: calc(var(--nav-h) + 16px);
  max-height: calc(100vh - var(--nav-h) - 32px);
  overflow-y: auto;
  padding-right: 8px;
}
.wiki-nav-group { margin-bottom: 24px; }
.wiki-nav-group h4 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 8px 0;
}
.wiki-nav-group ul { list-style: none; padding: 0; margin: 0; }
.wiki-nav-group li { margin: 0; padding: 0; }
.wiki-nav-group a {
  display: block;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-mute);
  text-decoration: none;
  padding: 5px 0 5px 10px;
  border-left: 2px solid transparent;
  line-height: 1.35;
}
.wiki-nav-group a code { font-size: 14px; padding: 0; background: none; color: inherit; font-weight: 500; }
.wiki-nav-group a:hover { color: var(--ink); }
.wiki-nav-group a.active {
  color: var(--accent-lo);
  border-left-color: var(--accent);
  font-weight: 600;
  background: rgba(255,98,0,.04);
}

.wiki-main { min-width: 0; }
.wiki-main > h1 { margin-top: 0; }

/* --- Buttons ------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: 5px;
  text-decoration: none;
  border: 1px solid transparent;
  transition: all .15s ease;
  cursor: pointer;
  line-height: 1.2;
}
.btn-primary   { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hi); border-color: var(--accent-hi); }
.btn-secondary { background: var(--secondary); color: var(--secondary-ink); border-color: var(--secondary); }
.btn-secondary:hover { background: #ffc38a; }
.btn-ghost     { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--bg); }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

/* --- Badges / tags ----------------------------------------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-code); font-size: 13px; font-weight: 700;
  letter-spacing: 0.4px; text-transform: uppercase;
  padding: 4px 10px; border-radius: 3px; line-height: 1.2;
}
.badge::before { content: "●"; font-size: 9px; }
.badge-live     { background: rgba(20,115,55,.12); color: #0f5a2a; border: 1px solid rgba(20,115,55,.22); }
.badge-live::before { color: #1a8a43; }
.badge-coming   { background: rgba(180,110,10,.12); color: #6b3e00; border: 1px solid rgba(180,110,10,.22); }
.badge-coming::before { content: "○"; color: #b46e0a; }
.badge-beta     { background: rgba(90,100,140,.12); color: #2d3b66; border: 1px solid rgba(90,100,140,.22); }
.badge-beta::before { content: "◐"; color: #4a5a8a; }

.tag {
  display: inline-block;
  font-family: var(--font-code);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .4px;
  padding: 4px 10px;
  border-radius: 3px;
  border: 1px solid var(--rule);
  color: var(--ink-mute);
  background: var(--bg-elev);
}
.tag-green  { background: rgba(20,115,55,.08);  border-color: rgba(20,115,55,.22);  color: #0f5a2a; }
.tag-blue   { background: rgba(28,80,138,.08);  border-color: rgba(28,80,138,.22);  color: #1a4a7a; }
.tag-orange { background: rgba(166,61,0,.08);   border-color: rgba(166,61,0,.22);   color: var(--accent-lo); }
.tag-purple { background: rgba(94,60,140,.08);  border-color: rgba(94,60,140,.22);  color: #4a2d80; }
.tag-row { display: flex; gap: 8px; flex-wrap: wrap; }

/* --- Cards + grids ----------------------------------------- */
.card {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 24px;
}
.card-elev { box-shadow: var(--shadow-card); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 24px 0;
}
.card-grid a.card {
  text-decoration: none;
  color: inherit;
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.card-grid a.card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow-card);
}
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card h4 { margin: 0 0 6px; font-size: 17px; }
.card p  { font-size: 15px; color: var(--ink-soft); margin: 0; line-height: 1.55; }
.card .tag { margin-top: 10px; font-size: 13px; }

/* --- Hero + landing layout --------------------------------- */
.landing-hero {
  padding: 88px var(--page-pad-x) 64px;
  max-width: var(--content-max);
  margin: 0 auto;
}
.landing-hero .meta {
  display: flex;
  gap: 22px;
  margin-top: 32px;
  font-size: 15px;
  color: var(--ink-mute);
  font-family: var(--font-code);
  flex-wrap: wrap;
}
.landing-hero .meta span::before { content: "→ "; color: var(--accent); }

/* --- Positioning table ------------------------------------- */
.positioning {
  padding: 56px var(--page-pad-x);
  background: var(--bg-elev);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.positioning-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 48px;
  align-items: start;
}
.positioning-inner h2 { font-size: 28px; margin-bottom: 10px; }
.positioning-inner p.lede { font-size: 17px; color: var(--ink-soft); }
.positioning-table {
  display: grid;
  grid-template-columns: 160px 1fr 1fr;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 8px;
  overflow: hidden;
  font-size: 16px;
}
.positioning-table > div {
  padding: 14px 16px;
  border-bottom: 1px solid var(--rule-soft);
}
.positioning-table > div:nth-last-child(-n+3) { border-bottom: none; }
.positioning-table .head {
  background: var(--bg-elev);
  font-family: var(--font-code);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--ink-mute);
  border-right: 1px solid var(--rule-soft);
}
.positioning-table .label {
  font-weight: 700;
  color: var(--ink);
  border-right: 1px solid var(--rule-soft);
}
.positioning-table .yes {
  color: var(--ink);
  border-right: 1px solid var(--rule-soft);
}
.positioning-table .yes::before { content: "✓  "; color: #0f5a2a; font-weight: 700; }
.positioning-table .no { color: var(--ink-soft); }
.positioning-table .no::before { content: "✕  "; color: var(--accent-lo); font-weight: 700; }

/* --- Feature teasers --------------------------------------- */
.teaser-section {
  padding: 72px var(--page-pad-x);
  max-width: var(--content-max);
  margin: 0 auto;
}
.teaser-section > .section-hd {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
  align-items: end;
}
.teaser-section > .section-hd h2 { margin: 0; }
.teaser-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.teaser {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  transition: all .2s;
}
.teaser:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-card); }
.teaser .num {
  font-family: var(--font-code);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--accent);
}
.teaser h3 { margin: 0; font-size: 24px; letter-spacing: -0.02em; }
.teaser p { margin: 0; font-size: 16px; color: var(--ink-soft); flex: 1; line-height: 1.55; }
.teaser .more {
  font-family: var(--font-code);
  font-size: 14px;
  color: var(--accent-lo);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 600;
}

/* --- Stat strip -------------------------------------------- */
.stat-strip {
  padding: 72px var(--page-pad-x);
  background: var(--ink);
  color: var(--bg);
}
.stat-strip-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 48px;
  align-items: center;
}
.stat-strip h2 { color: var(--bg); margin-bottom: 10px; }
.stat-strip .lede { color: rgba(245,241,232,.72); font-size: 16px; }
.stat-strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-strip-grid .stat {
  padding: 16px 0;
}
.stat-strip-grid .num {
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.035em;
  color: #fff;
  margin-bottom: 10px;
}
.stat-strip-grid .num em { color: var(--accent-hi); font-style: normal; }
.stat-strip-grid .label {
  font-size: 15px;
  color: rgba(245,241,232,.68);
  line-height: 1.45;
}

/* --- Deep-link gallery ------------------------------------- */
.gallery {
  padding: 72px var(--page-pad-x);
  max-width: var(--content-max);
  margin: 0 auto;
}
.gallery h2 { margin-bottom: 24px; }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}
.gallery-grid a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 6px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 500;
  font-size: 16px;
  transition: border-color .15s, background .15s;
}
.gallery-grid a:hover {
  border-color: var(--accent);
  background: var(--bg-elev);
}
.gallery-grid a::after {
  content: "→";
  color: var(--accent);
  font-weight: 700;
  margin-left: 12px;
}
.gallery-grid a code { background: none; padding: 0; color: var(--accent-lo); font-weight: 600; }

/* --- Footer ------------------------------------------------ */
footer.site-foot {
  padding: 56px var(--page-pad-x) 40px;
  border-top: 1px solid var(--rule);
  background: var(--bg-elev);
}
.foot-grid {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.foot-wordmark {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 0.9;
  margin-bottom: 12px;
}
.foot-wordmark .accent { color: var(--accent); }
.foot-tagline { font-size: 15px; color: var(--ink-soft); max-width: 320px; line-height: 1.55; margin: 0; }
.foot-col h4 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 12px;
}
.foot-col ul { list-style: none; padding: 0; margin: 0; }
.foot-col li { margin-bottom: 8px; }
.foot-col a {
  font-size: 15px;
  color: var(--ink-soft);
  text-decoration: none;
}
.foot-col a:hover { color: var(--accent-lo); text-decoration: underline; }
.foot-meta {
  max-width: var(--content-max);
  margin: 32px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  font-size: 15px;
  color: var(--ink-mute);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-code);
}
.foot-meta a { color: var(--ink-mute); }

/* --- Reference page components ----------------------------- */
.ref-signature {
  font-family: var(--font-code);
  font-size: 20px;
  font-weight: 600;
  color: var(--accent-lo);
  background: var(--bg-elev);
  border: 1px solid var(--rule);
  border-left: 4px solid var(--accent);
  border-radius: 6px;
  padding: 14px 18px;
  margin: 16px 0 24px;
  overflow-x: auto;
}

.ref-io-table {
  display: grid;
  grid-template-columns: 170px 140px 130px 1fr;
  border: 1px solid var(--rule);
  border-radius: 6px;
  overflow: hidden;
  margin: 16px 0 24px;
  font-size: 16px;
  background: var(--bg);
}
.ref-io-table > div {
  padding: 10px 14px;
  border-bottom: 1px solid var(--rule-soft);
  border-right: 1px solid var(--rule-soft);
}
.ref-io-table > div:nth-child(4n) { border-right: none; }
.ref-io-table > div:nth-last-child(-n+4) { border-bottom: none; }
.ref-io-table .head {
  background: var(--bg-elev);
  font-family: var(--font-code);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.ref-io-table .k {
  font-family: var(--font-code);
  font-weight: 600;
  color: var(--accent-lo);
  font-size: 15px;
}
.ref-io-table .t {
  font-family: var(--font-code);
  color: var(--ink-mute);
  font-size: 15px;
}
.ref-io-table .default {
  font-family: var(--font-code);
  font-size: 15px;
  color: var(--ink-mute);
}
.ref-io-table .desc { color: var(--ink-soft); font-size: 16px; line-height: 1.5; }

/* --- Code block -------------------------------------------- */
.code {
  background: var(--app-bg);
  border: 1px solid var(--app-rule);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 18px 22px;
  font-family: var(--font-code);
  font-size: 15px;
  line-height: 1.7;
  color: var(--app-text);
  max-width: 820px;
  margin: 16px 0;
  overflow-x: auto;
  white-space: pre;
}
.code .k  { color: var(--app-blue); }
.code .v  { color: var(--app-green); }
.code .c  { color: var(--app-mute); }
.code .e  { color: var(--accent); }
.code .p  { color: var(--app-soft); }
.code .ok { color: var(--app-green); }
.code .er { color: var(--app-red); }
.code .w  { color: var(--app-amber); }
.code .s  { color: var(--app-purple); }

.code-inline-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  max-width: 900px;
  margin: 16px 0;
}
.code-inline-pair .code { max-width: none; margin: 0; }
.code-label {
  font-family: var(--font-code);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 6px;
}

/* --- Callout ----------------------------------------------- */
.callout {
  display: flex;
  gap: 14px;
  padding: 18px 22px;
  border-radius: 6px;
  background: var(--bg-elev);
  border: 1px solid var(--rule);
  border-left: 4px solid var(--ink-mute);
  font-size: 16px;
  color: var(--ink-soft);
  line-height: 1.6;
  max-width: 820px;
  margin: 16px 0;
}
.callout strong { color: var(--ink); }
.callout-icon { font-size: 18px; flex-shrink: 0; line-height: 1.3; }
.callout-info  { border-left-color: var(--app-blue); }
.callout-info  .callout-icon { color: var(--app-blue); }
.callout-warn  { border-left-color: #b46e0a; }
.callout-warn  .callout-icon { color: #b46e0a; }
.callout-success { border-left-color: #0f5a2a; }
.callout-success .callout-icon { color: #0f5a2a; }
.callout-security { border-left-color: var(--accent-lo); }
.callout-security .callout-icon { color: var(--accent-lo); }

/* --- See also list ----------------------------------------- */
.seealso {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
}
.seealso h3 { font-size: 16px; margin-bottom: 10px; }
.seealso ul { list-style: none; padding: 0; columns: 2; column-gap: 32px; max-width: 820px; }
.seealso li { margin-bottom: 6px; break-inside: avoid; }
.seealso a { font-size: 15px; }
.seealso code { font-size: 14px; }

/* --- Source pointer ---------------------------------------- */
.source-pointer {
  margin-top: 32px;
  padding: 16px 20px;
  background: var(--bg-elev);
  border: 1px dashed var(--rule);
  border-radius: 6px;
  font-family: var(--font-code);
  font-size: 15px;
  color: var(--ink-mute);
  max-width: 820px;
}
.source-pointer strong { color: var(--ink); }
.source-pointer a code { color: var(--accent-lo); }

/* --- Reference tables (MCP/CLI listings) ------------------- */
.listing {
  margin: 24px 0 32px;
  border: 1px solid var(--rule);
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg);
}
.listing-row {
  display: grid;
  grid-template-columns: 200px 1fr 120px 100px;
  gap: 18px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--rule-soft);
  align-items: start;
  font-size: 16px;
  text-decoration: none;
  color: inherit;
}
.listing-row:last-child { border-bottom: none; }
.listing-row:hover { background: var(--bg-elev); }
.listing-row.head {
  background: var(--bg-elev);
  font-family: var(--font-code);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--ink-mute);
  cursor: default;
}
.listing-row.head:hover { background: var(--bg-elev); }
.listing-name {
  font-family: var(--font-code);
  font-weight: 700;
  color: var(--accent-lo);
  font-size: 16px;
  word-break: break-all;
}
.listing-desc { color: var(--ink-soft); line-height: 1.55; font-size: 16px; }
.listing-savings { font-family: var(--font-code); color: #0f5a2a; font-weight: 600; font-size: 15px; }
.listing-savings.na { color: var(--ink-mute); }
.listing-status { justify-self: end; }

/* --- FCSIT mnemonic card ----------------------------------- */
.fcsit-card {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin: 24px 0;
  max-width: 820px;
}
.fcsit-letter {
  display: block;
  padding: 20px 16px;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  transition: all .15s;
  text-align: center;
}
.fcsit-letter:hover { border-color: var(--accent); transform: translateY(-1px); }
.fcsit-letter .ltr {
  display: block;
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 4px;
}
.fcsit-letter.f .ltr { color: var(--tog-f); }
.fcsit-letter.c .ltr { color: var(--tog-c); }
.fcsit-letter.s .ltr { color: var(--tog-s); }
.fcsit-letter.i .ltr { color: var(--tog-i); }
.fcsit-letter.t .ltr { color: var(--tog-t); }
.fcsit-letter .name {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 2px;
}
.fcsit-letter .default {
  font-family: var(--font-code);
  font-size: 12px;
  color: var(--ink-mute);
}

/* --- Mockup chrome (shared) -------------------------------- */
.mockup {
  background: var(--app-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-pop);
  border: 1px solid var(--rule);
  font-family: var(--font-code);
  color: var(--app-text);
  font-size: 15px;
  line-height: 1.6;
}
.mockup-lg { max-width: 1100px; margin: 48px 0 0; }
.mockup-md { max-width: 820px; margin: 24px 0; }
.tb {
  display: flex; align-items: center;
  padding: 12px 16px;
  background: var(--app-elev);
  border-bottom: 1px solid var(--app-rule);
  user-select: none;
}
.dots { display: flex; gap: 7px; }
.dot  { width: 11px; height: 11px; border-radius: 50%; }
.dot-r { background: #ff5f56; }
.dot-y { background: #ffbd2e; }
.dot-g { background: #27c93f; }
.tb-title {
  flex: 1; text-align: center;
  font-family: var(--font-body); font-size: 14px;
  color: var(--app-soft); font-weight: 500;
}
.tb-title .accent { color: var(--accent); }
.tb-spacer { width: 50px; }

.pane {
  display: flex; flex-direction: column;
  background: var(--app-elev); border-radius: 6px; overflow: hidden;
  border: 1.5px solid var(--app-focus);
}
.pane.inactive { border: 1px solid var(--app-rule); box-shadow: none; }
.pane-accent { height: 3px; flex-shrink: 0; }
.pane.inactive .pane-accent { opacity: .5; }
.pane-header {
  display: flex; align-items: center; gap: 7px;
  padding: 0 10px; height: 28px; flex-shrink: 0;
  font-family: var(--font-body);
}
.pane-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.pane-dot.running { background: var(--app-green); }
.pane-dot.idle    { background: var(--app-dim); }
.pane-title { font-size: 14px; font-weight: 600; color: var(--app-text); white-space: nowrap; }
.pane-ctx   { font-size: 13px; font-family: var(--font-code); color: var(--app-mute); }
.pane-spacer { flex: 1; }
.fcsit { display: flex; gap: 3px; align-items: center; }
.fcsit-btn {
  width: 20px; height: 20px; border-radius: 3px;
  font-size: 12px; font-weight: 700; font-family: var(--font-code);
  display: flex; align-items: center; justify-content: center; line-height: 1;
}
.fcsit-btn.f-on  { background: rgba(90,167,224,.22);  color: var(--tog-f); }
.fcsit-btn.c-on  { background: rgba(79,195,120,.22);  color: var(--tog-c); }
.fcsit-btn.s-on  { background: rgba(255,174,51,.22);  color: var(--tog-s); }
.fcsit-btn.i-on  { background: rgba(198,120,221,.22); color: var(--tog-i); }
.fcsit-btn.t-on  { background: rgba(230,180,51,.22);  color: var(--tog-t); }
.fcsit-btn.off   { background: rgba(80,80,80,.18);    color: var(--app-dim); }

.pane-sep { height: 1px; background: var(--app-bg); flex-shrink: 0; }
.pane-body {
  flex: 1; padding: 16px 18px;
  font-family: var(--font-code); font-size: 14px; line-height: 1.65;
  background: var(--app-panel); overflow: hidden;
}

/* Terminal */
.term-line    { font-size: 14px; line-height: 1.75; white-space: pre-wrap; overflow-wrap: anywhere; }
.term-prompt  { color: var(--app-green); }
.term-at      { color: var(--app-purple); }
.term-dir     { color: var(--app-blue); }
.term-cmd     { color: var(--app-text); }
.term-arg     { color: var(--accent); }
.term-out     { color: var(--app-soft); }
.term-ok      { color: var(--app-green); }
.term-warn    { color: var(--app-amber); }
.term-err     { color: var(--app-red); }
.term-deny    { color: var(--app-amber); }
.term-cursor  { display: inline-block; width: 8px; height: 14px; background: var(--app-text); vertical-align: text-bottom; animation: blink 1.1s step-end infinite; }
@keyframes blink { 0%,50%{opacity:1} 51%,100%{opacity:0} }
@media (prefers-reduced-motion: reduce) {
  .term-cursor { animation: none; opacity: 1; }
}

/* --- Stat cards (reference stats) -------------------------- */
.stat-card {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 24px 28px;
  max-width: 280px;
}
.stat-card .num {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1;
  color: var(--ink);
}
.stat-card .num em { color: var(--accent); font-style: normal; }
.stat-card .label {
  font-size: 14px;
  color: var(--ink-mute);
  margin-top: 8px;
  line-height: 1.5;
}

/* --- Feature-list style (for hubs) ------------------------- */
.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
  margin: 20px 0 32px;
}
.feature-list a.fl-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  transition: all .15s;
}
.feature-list a.fl-item:hover {
  border-color: var(--accent);
  background: var(--bg-elev);
}
.feature-list .fl-name {
  font-family: var(--font-code);
  font-weight: 700;
  color: var(--accent-lo);
  font-size: 16px;
}
.feature-list .fl-desc {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.5;
}

/* --- Step blocks (guides) ---------------------------------- */
.step {
  margin: 24px 0 32px;
  max-width: 820px;
}
.step-num {
  display: inline-block;
  font-family: var(--font-code);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--accent-lo);
  margin-bottom: 4px;
}
.step h3 { font-size: 22px; margin-bottom: 12px; }
.step p { font-size: 17px; }
.step .code { font-size: 15px; }

/* --- Product heroes (landing page "one hero per feature") -- */
.product-band {
  padding: 96px var(--page-pad-x);
  border-bottom: 1px solid var(--rule);
}
.product-band:nth-of-type(odd) { background: var(--bg); }
.product-band:nth-of-type(even) { background: var(--bg-elev); }
.product-band.dark {
  background: var(--ink);
  color: var(--bg);
  border-color: rgba(255,255,255,.08);
}
.product-band.dark h2 { color: var(--bg); }
.product-band.dark p { color: rgba(245,241,232,.82); }
.product-band.dark .overline { color: rgba(245,241,232,.55); }
.product-band.dark .product-hero-cta { color: var(--accent-hi); }
.product-band.dark .product-hero-cta:hover { color: #fff; }
.product-band.dark .product-hero-bullets li { color: rgba(245,241,232,.85); }

.product-hero {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 72px;
  align-items: center;
}
.product-hero.reverse .product-hero-text { order: 2; }
.product-hero.reverse .product-hero-visual { order: 1; }
.product-hero .overline { margin-bottom: 18px; }
.product-hero h2 {
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  max-width: 14ch;
}
.product-hero h2 .accent { color: var(--accent); }
.product-hero p {
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: 24px;
  max-width: 52ch;
}
.product-hero-bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 32px 0;
  max-width: 52ch;
}
.product-hero-bullets li {
  padding-left: 28px;
  position: relative;
  margin-bottom: 12px;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink-soft);
}
.product-hero-bullets li::before {
  content: "◆";
  position: absolute;
  left: 0;
  top: 2px;
  color: var(--accent);
  font-size: 12px;
}
.product-hero-bullets li strong { color: var(--ink); font-weight: 600; }
.product-band.dark .product-hero-bullets li strong { color: var(--bg); }
.product-hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--accent-lo);
  text-decoration: none;
  font-size: 17px;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
  transition: color .15s, gap .15s;
}
.product-hero-cta:hover { color: var(--accent); gap: 12px; }

.product-hero-visual { min-width: 0; }
.product-hero-visual .mockup { margin: 0; }

/* Product visuals: simple illustrations for each hero */
.viz-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  background: var(--bg);
  padding: 18px;
  border-radius: 12px;
  border: 1px solid var(--rule);
  box-shadow: var(--shadow-card);
}
.viz-grid-item {
  padding: 16px 14px;
  background: var(--bg-elev);
  border: 1px solid var(--rule-soft);
  border-radius: 6px;
  font-family: var(--font-code);
  text-align: center;
  transition: all .15s;
}
.viz-grid-item:hover { border-color: var(--accent); background: #fff; }
.viz-grid-item .code-name {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-lo);
  margin-bottom: 5px;
  word-break: break-all;
}
.viz-grid-item .code-tag {
  display: block;
  font-size: 12px;
  color: var(--ink-mute);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}
.product-band.dark .viz-grid { background: var(--app-panel); border-color: var(--app-rule); }
.product-band.dark .viz-grid-item { background: var(--app-elev); border-color: var(--app-rule); }
.product-band.dark .viz-grid-item .code-name { color: var(--accent-hi); }
.product-band.dark .viz-grid-item .code-tag { color: var(--app-mute); }

.viz-flow {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
}
.viz-flow-step {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--bg-elev);
  border-radius: 6px;
  border-left: 3px solid var(--rule);
  margin-bottom: 10px;
  font-size: 15px;
}
.viz-flow-step:last-child { margin-bottom: 0; }
.viz-flow-step.accent { border-left-color: var(--accent); }
.viz-flow-step .viz-step-num {
  font-family: var(--font-code);
  font-weight: 700;
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 1px;
}
.viz-flow-step .viz-step-body { flex: 1; color: var(--ink-soft); }
.viz-flow-step strong { color: var(--ink); font-weight: 600; }
.viz-flow-arrow {
  display: flex;
  justify-content: center;
  color: var(--ink-mute);
  margin: 4px 0;
  font-size: 14px;
}
.product-band.dark .viz-flow { background: var(--app-panel); border-color: var(--app-rule); }
.product-band.dark .viz-flow-step { background: var(--app-elev); color: var(--app-soft); }
.product-band.dark .viz-flow-step strong { color: var(--app-text); }
.product-band.dark .viz-flow-step .viz-step-body { color: var(--app-soft); }

.viz-shield {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  display: grid;
  gap: 10px;
}
.viz-shield-item {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  align-items: start;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule-soft);
}
.viz-shield-item:last-child { border-bottom: none; }
.viz-shield-item .check {
  color: #0f5a2a;
  font-weight: 700;
  font-size: 18px;
  line-height: 1.2;
}
.viz-shield-item .viz-label {
  font-weight: 600;
  font-size: 15px;
  color: var(--ink);
  display: block;
  margin-bottom: 2px;
}
.viz-shield-item .viz-sub {
  font-size: 14px;
  color: var(--ink-mute);
  line-height: 1.5;
}
.product-band.dark .viz-shield { background: var(--app-panel); border-color: var(--app-rule); }
.product-band.dark .viz-shield-item { border-color: var(--app-rule); }
.product-band.dark .viz-shield-item .viz-label { color: var(--app-text); }
.product-band.dark .viz-shield-item .viz-sub { color: var(--app-mute); }
.product-band.dark .viz-shield-item .check { color: var(--app-green); }

.viz-kb {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--shadow-card);
}
.viz-kb-entity {
  padding: 14px 16px;
  background: var(--bg-elev);
  border: 1px solid var(--rule-soft);
  border-radius: 6px;
  margin-bottom: 10px;
}
.viz-kb-entity:last-child { margin-bottom: 0; }
.viz-kb-entity .name {
  font-family: var(--font-code);
  font-weight: 700;
  font-size: 15px;
  color: var(--accent-lo);
  margin-bottom: 4px;
}
.viz-kb-entity .body {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.5;
}
.viz-kb-entity .links {
  margin-top: 10px;
  font-family: var(--font-code);
  font-size: 13px;
  color: var(--ink-mute);
}

.viz-panes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  background: var(--app-bg);
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--rule);
  box-shadow: var(--shadow-pop);
}
.viz-pane-tile {
  padding: 14px 10px;
  background: var(--app-elev);
  border-radius: 6px;
  border-top: 3px solid var(--app-focus);
  font-family: var(--font-body);
}
.viz-pane-tile.green { border-top-color: var(--app-green); }
.viz-pane-tile.blue { border-top-color: var(--app-blue); }
.viz-pane-tile.amber { border-top-color: var(--app-amber); }
.viz-pane-tile.purple { border-top-color: var(--app-purple); }
.viz-pane-tile.cyan { border-top-color: var(--app-cyan); }
.viz-pane-tile .name {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--app-text);
  margin-bottom: 4px;
}
.viz-pane-tile .desc {
  display: block;
  font-size: 13px;
  color: var(--app-soft);
  line-height: 1.45;
}

.viz-before-after {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  background: var(--app-bg);
  padding: 18px;
  border-radius: 12px;
  border: 1px solid var(--rule);
  box-shadow: var(--shadow-pop);
}
.viz-col {
  background: var(--app-panel);
  border-radius: 6px;
  padding: 18px 16px;
  font-family: var(--font-code);
  font-size: 14px;
  line-height: 1.65;
  color: var(--app-text);
}
.viz-col .viz-col-head {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--app-soft);
  margin-bottom: 14px;
}
.viz-col.after .viz-col-head { color: var(--tog-c); }
.viz-col .viz-line {
  font-size: 14px;
  line-height: 1.75;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  color: var(--app-text);
}
.viz-col .viz-line.highlight { color: var(--tog-c); }
.viz-col .viz-total {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--app-rule);
  font-size: 15px;
  font-weight: 700;
  color: var(--app-amber);
}
.viz-col.after .viz-total { color: var(--tog-c); }

@media (max-width: 1040px) {
  .product-band { padding: 64px var(--page-pad-x); }
  .product-hero { grid-template-columns: 1fr; gap: 40px; }
  .product-hero.reverse .product-hero-text { order: 1; }
  .product-hero.reverse .product-hero-visual { order: 2; }
  .viz-grid { grid-template-columns: repeat(2, 1fr); }
  .viz-panes { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .viz-grid { grid-template-columns: 1fr; }
  .viz-before-after { grid-template-columns: 1fr; }
  .viz-panes { grid-template-columns: 1fr; }
}

/* --- Search results ---------------------------------------- */
.search-results {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  width: 420px;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 6px;
  box-shadow: var(--shadow-pop);
  max-height: 420px;
  overflow-y: auto;
  z-index: 300;
}
.search-results.open { display: block; }
.search-hit {
  display: block;
  padding: 12px 16px;
  border-bottom: 1px solid var(--rule-soft);
  text-decoration: none;
  color: var(--ink);
  font-size: 15px;
}
.search-hit:last-child { border-bottom: none; }
.search-hit:hover, .search-hit.active { background: var(--bg-elev); }
.hit-title { display: block; font-weight: 600; margin-bottom: 3px; }
.hit-path { display: block; font-family: var(--font-code); font-size: 13px; color: var(--ink-mute); }
.search-empty { padding: 16px; color: var(--ink-mute); font-size: 15px; }

/* --- Code copy button -------------------------------------- */
.code-copy {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 5px 12px;
  font-family: var(--font-code);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  background: rgba(255,255,255,.08);
  color: var(--app-soft);
  border: 1px solid var(--app-rule);
  border-radius: 3px;
  cursor: pointer;
  opacity: 0;
  transition: opacity .15s;
}
.code:hover .code-copy, .code-copy:focus-visible { opacity: 1; }
.code-copy:hover { background: rgba(255,255,255,.16); color: var(--app-text); }

/* --- Responsive -------------------------------------------- */
@media (max-width: 1040px) {
  .wiki-layout { grid-template-columns: 1fr; }
  .wiki-nav {
    position: static;
    max-height: none;
    border-bottom: 1px solid var(--rule);
    padding-bottom: 20px;
    margin-bottom: 12px;
  }
  .positioning-inner { grid-template-columns: 1fr; gap: 28px; }
  .teaser-section > .section-hd { grid-template-columns: 1fr; gap: 16px; }
  .stat-strip-inner { grid-template-columns: 1fr; gap: 32px; }
  .stat-strip-grid { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}

@media (max-width: 780px) {
  .topnav-hamburger { display: block; }
  .topnav-search { display: none; }
  .topnav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--rule);
    padding: 18px var(--page-pad-x) 22px;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    z-index: 199;
    box-shadow: var(--shadow-card);
  }
  .topnav-links.open { display: flex; }
  .topnav-links .btn-nav { width: 100%; text-align: center; padding: 12px 18px; }
  .positioning-table { grid-template-columns: 1fr; }
  .positioning-table > div { border-right: none !important; }
  .teaser-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .ref-io-table { grid-template-columns: 140px 1fr; }
  .ref-io-table .t, .ref-io-table .default { display: none; }
  .listing-row { grid-template-columns: 1fr; gap: 4px; }
  .listing-row.head { display: none; }
  .listing-status { justify-self: start; }
  .foot-grid { grid-template-columns: 1fr; }
  .landing-hero { padding: 48px var(--page-pad-x) 40px; }
  .fcsit-card { grid-template-columns: repeat(5, 1fr); gap: 4px; }
  .fcsit-letter { padding: 12px 4px; }
  .fcsit-letter .ltr { font-size: 26px; }
  .fcsit-letter .name { font-size: 13px; }
  .fcsit-letter .default { display: none; }
  .seealso ul { columns: 1; }
}