/* Responsive compositions for supporting pages. The homepage is isolated. */
.reader-navigation > summary { list-style:none; font:600 12px/1.5 Manrope,sans-serif; color:var(--muted); text-transform:uppercase; letter-spacing:.04em; margin-bottom:16px; }
.reader-navigation > summary::-webkit-details-marker { display:none; }
.bv-mobile,.tv-mobile-bars { display:none; }
.mobile-table-scroll { max-width:100%; min-width:0; overflow-x:auto; overscroll-behavior-x:contain; scrollbar-width:thin; scrollbar-color:var(--muted) transparent; }
.mobile-table-scroll > table { display:table!important; width:100%; }
.mobile-table-hint { display:none; }

@media (max-width:820px) {
  .site-extension { --site-gutter:20px; }
  .site-extension :is(input:not([type=checkbox]):not([type=radio]),select,textarea) { font-size:16px!important; min-height:48px; max-width:100%; }
  .site-extension :is(button,.button,.text-link,.bv-download,summary,.filter,.resource-filters button) { min-height:44px; }
  .site-extension .header-inner { gap:12px; }
  .site-extension .menu-toggle { min-width:44px; min-height:44px; display:grid; place-items:center; padding:10px; border-radius:5px; }
  .site-extension .site-nav { top:100%; display:none; padding:12px 20px 20px; grid-template-columns:repeat(2,minmax(0,1fr)); gap:4px 12px; text-align:left; }
  .site-extension .site-nav.open { display:grid; }
  .site-extension .site-nav a { display:flex; align-items:center; min-height:48px; padding:10px 12px; border-radius:4px; font-size:15px; }
  .site-extension .site-nav a[aria-current=page]:after { inset:auto 12px 4px; }
  .site-extension .section-footer>.wrap { flex-direction:column; gap:18px; }
  .site-extension .section-footer-links nav { justify-content:flex-start; gap:4px 18px; }
  .site-extension .section-footer-links a { display:inline-flex; align-items:center; min-height:44px; }
}

@media (max-width:1000px) {
  .section-guides .article-body .article-layout { grid-template-columns:minmax(0,1fr); gap:0; }
  .section-guides .article-sidebar { position:static; order:-1; padding:0; border:0; margin-bottom:24px; }
  .reader-navigation { border-block:1px solid var(--line); }
  .reader-navigation > summary { display:flex; align-items:center; justify-content:space-between; min-height:50px; margin:0; padding:12px 0; cursor:pointer; font-size:14px; letter-spacing:0; text-transform:none; color:var(--ink); }
  .reader-navigation > summary:after { content:'+'; font-size:22px; font-weight:400; }
  .reader-navigation[open] > summary:after { content:'−'; }
  .section-guides .reader-navigation .toc { display:grid; gap:0; padding:0 0 10px; max-height:none; overflow:visible; }
  .section-guides .reader-navigation .toc a { min-height:44px; display:flex; align-items:center; padding:10px 0; font-size:15px; }
  .section-guides .reader-navigation .reader-back { min-height:44px; margin:10px 0; }
  .section-guides .reader-navigation .reader-action { margin:8px 0; min-height:44px; }
}

@media (max-width:820px) {
  .site-extension .contact-layout { grid-template-columns:minmax(0,1fr); gap:30px; }
  .site-extension .contact-layout > * { min-width:0; }
}

@media (max-width:600px) {
  .site-extension { --site-gutter:18px; }
  .site-extension .site-header { height:76px; }
  .site-extension .header-inner { gap:9px; }
  .site-extension .brand img { width:28px; height:28px; }
  .site-extension .wordmark { font-size:29px; }
  .site-extension .header-contact { min-height:44px; font-size:12px; padding:10px 12px; margin-left:auto; }
  .site-extension .breadcrumb { display:flex; flex-wrap:wrap; gap:6px 8px; font-size:12px; line-height:1.5; margin-bottom:20px; overflow-wrap:anywhere; }
  .site-extension .breadcrumb > * { min-width:0; }
  .site-extension .page-intro { padding-block:30px 32px; }
  .site-extension .page-intro h1 { font-size:clamp(32px,8.8vw,40px); overflow-wrap:anywhere; }
  .site-extension .page-intro .lead { font-size:16px; line-height:1.65; margin-top:18px; }
  .site-extension .page-body { padding-block:30px 48px; }
  .site-extension .actions { gap:10px; margin-top:22px; }
  .site-extension .bv-export { flex-wrap:wrap; gap:8px 12px; min-width:0; }
  .site-extension .bv-export > span { flex:1 1 190px; overflow-wrap:anywhere; font-size:13px; }
  .site-extension .bv-download { font-size:14px; white-space:normal; text-align:left; }

  /* Typography keeps its reading size; navigation moves out of the way. */
  .section-guides .article-intro { padding-block:28px 26px; }
  .section-guides .article-intro h1 { font-size:clamp(32px,9.2vw,38px); line-height:1.13; overflow-wrap:anywhere; }
  .section-guides .article-deck { font-size:18px; line-height:1.6; margin-top:18px; }
  .section-guides .article-meta { flex-wrap:wrap; gap:7px 18px; font-size:13px; margin-top:22px; }
  .section-guides .article-meta a { min-height:44px; display:inline-flex; align-items:center; }
  .section-guides .article-body { padding-top:20px; }
  .site-extension.section-guides .article-body .article-prose { font-size:18px; line-height:1.7; }
  .site-extension.section-guides .article-body .article-prose > p { font-size:18px; line-height:1.7; }
  .site-extension.section-guides .article-body .article-prose .article-answer { font-size:20px; line-height:1.65; margin-top:4px; }
  .site-extension.section-guides .article-body .article-prose > h2 { font-size:28px; margin-top:34px; }
  .site-extension.section-guides .article-body .article-prose > :is(ul,ol) { font-size:18px; padding-left:1.2em; }
  .site-extension.section-guides .article-body .article-prose > blockquote { padding:18px 20px; }
  .site-extension.section-guides .article-body .article-prose .related-reading-list a { grid-template-columns:1fr; gap:3px; padding-inline:0; }
  .site-extension.section-guides .article-body .article-prose .article-source-list a { min-height:44px; }
  .site-extension.section-guides .article-body .article-prose .article-end-note nav a { min-height:44px; display:inline-flex; align-items:center; }
  .section-guides .library-intro h1 { font-size:38px; }
  .section-guides .library-row > a { grid-template-columns:1fr; gap:8px; }
  .section-guides .library-row h2 { font-size:26px; }
  .section-guides .library-row-time { text-align:left; }
  .section-guides .library-topics { gap:8px 18px; }
  .section-guides .library-topics a { min-height:44px; }
  .section-guides .reading-tabs { gap:24px; }

  /* Mobile figures are HTML charts and evidence, never a shrunken text image. */
  .site-extension .bv-figure > img { display:none; }
  .site-extension .bv-mobile { display:block; background:oklch(97% .016 222); font:400 15px/1.6 Manrope,sans-serif; }
  .bv-mobile-brand { background:oklch(20% .02 231); padding:2px 16px; }
  .bv-mobile-brand img { width:102px; height:44px; object-fit:contain; }
  .bv-mobile-content { padding:20px 16px; }
  .site-extension .bv-mobile h3,.site-extension.section-guides .article-body .article-prose .bv-mobile h3 { font:700 20px/1.35 Manrope,sans-serif; letter-spacing:-.025em; margin:0 0 20px; }
  .bv-mobile-evidence { margin:0; display:grid; gap:18px; }
  .bv-mobile-evidence > div { border-left:3px solid oklch(66% .08 231); padding-left:12px; }
  .bv-mobile-evidence dt { font-weight:650; margin:0 0 4px; }
  .bv-mobile-evidence dd { margin:0; font-size:14px; line-height:1.65; color:var(--muted); overflow-wrap:anywhere; }
  .bv-mobile-evidence dd + dd { margin-top:8px; }
  .bv-mobile-evidence dd > span { display:block; font-size:12px; font-weight:600; color:var(--ink); }
  .bv-mobile-bars { display:grid; gap:20px; }
  .bv-mobile-bar { display:grid; grid-template-columns:minmax(0,1fr) auto; gap:8px 12px; }
  .bv-mobile-bar strong { font-size:16px; font-variant-numeric:tabular-nums; }
  .bv-mobile-track { grid-column:1/-1; position:relative; height:16px; background:oklch(87% .025 228); overflow:hidden; border-radius:2px; }
  .bv-mobile-track i { position:absolute; left:var(--start); display:block; width:var(--bar); height:100%; background:oklch(48% .09 231); transform-origin:left; }
  .bv-mobile-track i.negative,.bv-mobile-track i.attention { background:oklch(52% .1 65); }
  .bv-mobile-track i.success { background:oklch(43% .08 167); }
  .bv-mobile-track.has-negative:after { content:''; position:absolute; top:0; bottom:0; left:var(--zero); width:1px; background:var(--ink); }
  .bv-mobile-axis { display:flex; justify-content:space-between; font-size:13px; color:var(--muted); }
  .bv-mobile-flow { list-style:none!important; padding:0!important; margin:0!important; display:grid; gap:14px; }
  .bv-mobile-flow li { display:grid; grid-template-columns:28px minmax(0,1fr); gap:12px; margin:0!important; padding:0!important; }
  .bv-mobile-flow li > span { display:grid; place-items:center; width:28px; height:28px; border-radius:50%; background:var(--brand); color:white; font-size:13px; }
  .site-extension .bv-mobile-flow p { font:400 14px/1.6 Manrope,sans-serif!important; margin:4px 0 0; }
  .bv-mobile-equation { display:grid; gap:12px; padding:0!important; list-style:none!important; margin:0!important; }
  .bv-mobile-equation li { margin:0!important; padding:0!important; font-weight:600; }
  .site-extension .bv-data summary { min-height:44px; font-size:14px; }
  .site-extension .bv-data { overflow:visible; }
  .site-extension .bv-data table { min-width:460px; }

  /* Keep units, denominators and signed values readable on live calculators. */
  .section-tools .ftb-layout { width:calc(100% - 36px); }
  .section-tools .ftb-controls { align-items:start; flex-wrap:wrap; }
  .section-tools .ftb-search { flex:1 1 100%; }
  .section-tools .bt-tool-intro { margin-bottom:20px; }
  .section-tools .bt-metrics > div { grid-template-columns:minmax(0,1fr); gap:3px; }
  .section-tools .bt-metrics dd { font-size:22px; text-align:left; }
  .section-tools .bt-field small { font-size:13px; }
  .section-tools .bt-actions { align-items:stretch; }
  .section-tools .bt-actions > * { flex:1 1 auto; }
  .section-tools :is(.bt-workspace > *,.qt-result > div,.tv-figure,.tv-chart-data) { width:100%; max-width:100%; min-width:0; }
  .section-tools .tv-chart { display:none; }
  .tv-mobile-bars { display:grid; gap:20px; }
  .tv-mobile-row { display:grid; grid-template-columns:minmax(0,1fr); gap:5px; }
  .tv-mobile-row > span { font-size:14px; }
  .tv-mobile-row > strong { font-size:20px; line-height:1.35; font-variant-numeric:tabular-nums; }
  .tv-mobile-track { height:14px; position:relative; background:oklch(87% .015 82); border-radius:2px; overflow:hidden; margin-top:4px; }
  .tv-mobile-track i { position:absolute; left:var(--start); width:var(--bar); height:100%; background:oklch(48% .08 225); transform-origin:left; }
  .tv-mobile-track i.selected { background:oklch(43% .08 167); }
  .tv-mobile-track i.attention,.tv-mobile-track i.negative { background:oklch(52% .1 65); }
  .tv-mobile-track i.threshold { background:oklch(43% .024 239); }
  .tv-mobile-track i.tv-segment-0 { background:oklch(53% .082 225); }
  .tv-mobile-track i.tv-segment-1 { background:oklch(49% .09 67); }
  .tv-mobile-track i.tv-segment-2 { background:oklch(75% .06 73); }
  .tv-mobile-track.has-negative:after { content:''; position:absolute; top:0; bottom:0; width:1px; left:var(--zero); background:var(--ink); }
  .tv-mobile-axis { display:flex; justify-content:space-between; font-size:13px; margin-top:-8px; color:var(--muted); }
  .section-tools .tv-chart-key { font-size:13px; }
  .section-tools .tv-equation { flex-wrap:wrap; gap:10px; }
  .section-tools .tv-note { font-size:13px; }
  .section-tools .qt-table :is(input,select) { min-height:48px; }
  .section-tools .qt-table thead th:first-child,.section-tools .qt-table tbody th { width:112px; padding:12px 10px; }
  .section-tools .qt-remove { min-height:44px; }
  .section-tools .qt-supplier-top { align-items:center; }
  .section-tools .qt-review-row li,.section-tools .qt-complete-note { font-size:13px; }

  /* Wide evidence stays within a scrollable region, never the whole screen. */
  .site-extension .mobile-table-scroll :is(th,td) { font-size:14px; line-height:1.6; }
  .site-extension .mobile-table-scroll > table { min-width:460px; }
  .site-extension .mobile-table-scroll > .tv-value-table { min-width:0; }
  .mobile-table-hint:not([hidden]) { display:block; font:500 12px/1.5 Manrope,sans-serif!important; color:var(--muted); margin:10px 0 8px!important; }
  .site-extension :is(.mobile-table-scroll,.cs-ledger-scroll,.comparison-table-scroll,.dt-score-table-scroll) { overscroll-behavior-x:contain; }
  .site-extension .cs-chart-axis { margin:0 0 12px; font-size:12px; }
  .site-extension .cs-chart-row { grid-template-columns:minmax(0,1fr) auto; gap:8px 12px; margin-top:22px; }
  .site-extension .cs-chart-label { font-size:14px; }
  .site-extension .cs-chart-label > span { font-size:12px; }
  .site-extension .cs-chart-value { font-size:24px; }
  .site-extension .cs-chart-track { grid-column:1/-1; grid-row:2; height:22px; }
  .site-extension .cs-figure-data { overflow:visible; }
  .site-extension .cs-savings-matrix table { min-width:480px; }
  .site-extension .cs-savings-matrix table td { font-size:16px; padding:16px 10px; border-width:3px; }
  .site-extension .cs-savings-matrix table th,.site-extension .cs-savings-matrix table th[scope=row] { font-size:13px; padding:13px 10px; letter-spacing:0; }
  .site-extension .cs-mechanism-steps { grid-template-columns:1fr; gap:10px; font-size:13px!important; }
  .site-extension .cs-mechanism-steps li + li { border:0; padding-left:0!important; }
  .site-extension.section-guides .article-body .article-prose .cs-executive-quote p { font-size:23px; }

  /* Text-free 3D scenes fit the working column rather than clipping at its edge. */
  .site-extension .inline-experiment .ie-art { height:230px; border-radius:12px; }
  .site-extension .inline-experiment .ie-boundary-stage { --boundary-scale:.68; }
  .ie-desk { transform:scale(.59); top:45px; }
  .ie-paper-stack { --scene-scale:.75; top:78px; }
  .ie-orbit-token { right:calc(50% - 143px); top:44px; transform:scale(.85) rotate(-13deg); }
  .ie-crates { transform:rotate(-7deg) scale(.75); top:50px; }
  .ie-receipt-check { left:calc(50% + 95px); top:160px; width:42px; height:42px; }
  .ie-compare-row,.ie-capacity-row { grid-template-columns:minmax(0,1fr) auto; gap:8px 12px; font-size:14px; }
  .ie-compare-row .ie-bar-track,.ie-capacity-row .ie-bar-track { grid-column:1/-1; grid-row:2; }
  .ie-compare-row strong,.ie-capacity-row strong { font-size:18px; }

  .ai-news-page .news-article-header h1 { font-size:clamp(32px,9.2vw,38px)!important; overflow-wrap:anywhere; }
  .ai-news-page .news-article-context dl { gap:12px 24px; }
  .ai-news-page .news-story-bottom a,.ai-news-page .news-method-links a { display:inline-flex; align-items:center; min-height:44px; }
  .ai-news-page .news-explainer-columns > div { grid-template-columns:1fr; gap:8px; }
  .ai-news-page .news-explainer-columns span { grid-row:auto; }
  .site-extension .comparison-picker :is(input,select) { font-size:16px; }
  .section-resources .resource-file { grid-template-columns:minmax(0,1fr); gap:10px; }
  .section-resources .resource-download { grid-column:1; grid-row:auto; justify-self:start; min-height:44px; }
  .section-resources .resource-format { display:flex; grid-column:1; gap:10px; font-size:13px; }
  .section-resources .resource-list-head { display:none; }
  .section-services .solution-map ol { grid-template-columns:1fr; gap:16px; }
  .section-services .solution-map li { display:grid; grid-template-columns:28px minmax(0,1fr); gap:12px; }
  .site-extension .sv-process li { min-width:0; }
  .site-extension .form-success { padding:22px 18px; }
  .site-extension .brief-summary { overflow-wrap:anywhere; }
  .site-extension .dm-nav button { font-size:14px; }
  .site-extension .dm-stage-header p,.site-extension .dm-email p,.site-extension .dm-status { font-size:14px; }
  .site-extension .dm-stage-content { min-height:0; }
  .site-extension .dm-source pre { overflow:auto; font-size:13px; }
}

@media (max-width:360px) {
  .site-extension .wordmark { font-size:26px; }
  .site-extension .brand img { width:26px; height:26px; }
  .site-extension .header-contact { padding-inline:10px; }
  .ie-desk { transform:scale(.49); }
  .site-extension .inline-experiment .ie-boundary-stage { --boundary-scale:.56; }
  .ie-orbit-token { right:calc(50% - 118px); }
  .site-extension .inline-experiment .ie-art { height:210px; }
  .ie-paper-stack { --scene-scale:.64; }
}
@media (prefers-reduced-motion:no-preference) {
  .site-extension .site-nav.open { animation:mobile-menu-in 180ms ease-out both; }
  .tv-result-updated .tv-mobile-track i { animation:tv-data-in 220ms cubic-bezier(.16,1,.3,1) both; }
}
@keyframes mobile-menu-in { from { opacity:0; transform:translateY(-5px); } to { opacity:1; transform:translateY(0); } }
@media print { .bv-mobile,.tv-mobile-bars,.mobile-table-hint { display:none!important; } .mobile-table-scroll { overflow:visible; } }