:root{color-scheme:light;--ink:#1d1d1f;--muted:#6e6e73;--blue:#0071e3;--soft:#f5f5f7;--line:#d2d2d7;--header:48px;--width:1080px;--pad:32px}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei",sans-serif;line-height:1.5;-webkit-text-size-adjust:100%;text-size-adjust:100%;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{border:0}button:disabled{cursor:default}svg{display:block}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,[tabindex="0"]:focus-visible{outline:3px solid #0071e3;outline-offset:4px}h1,h2,h3,p{margin:0}ul{list-style:none;margin:0;padding:0}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip{position:fixed;z-index:900;top:8px;left:16px;transform:translateY(-180%);padding:12px 20px;border-radius:8px;background:#fff;color:var(--ink)}.skip:focus{transform:none}.wrap{width:min(var(--width),calc(100% - var(--pad)*2));margin-inline:auto}.icon{width:22px;height:22px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.icon-large{width:44px;height:44px;stroke-width:1.25}.icon-button{display:grid;place-items:center;width:44px;min-height:44px;background:transparent;color:inherit;border-radius:8px}.icon-button:hover{background:rgba(0,0,0,.04)}
.global-header{height:var(--header);position:sticky;top:0;z-index:100;background:rgba(250,250,252,.86);backdrop-filter:blur(20px) saturate(1.3);-webkit-backdrop-filter:blur(20px) saturate(1.3);border-bottom:1px solid rgba(0,0,0,.06)}.global-bar{height:100%;display:flex;align-items:center;justify-content:space-between;max-width:1000px;margin:auto;padding-inline:20px;gap:24px}.brand{display:grid;place-items:center;min-width:44px;min-height:44px;font-size:19px;font-weight:750;letter-spacing:-1px}.global-links{display:flex;align-items:center;justify-content:center;gap:64px;height:100%;flex:1}.global-item{height:100%;display:flex;align-items:center;position:relative}.global-link{font-size:12px;line-height:44px;white-space:nowrap;color:#363638}.global-link[aria-current=page]{color:#000;font-weight:650}.disclosure{width:24px;min-height:44px;background:transparent;color:var(--muted);display:grid;place-items:center}.disclosure .icon{width:12px;height:12px}.header-actions{display:flex;align-items:center;gap:4px}.mobile-trigger{display:none}.js-only{display:none}.js .js-only{display:grid}.menu-shade{position:fixed;inset:var(--header) 0 0;background:rgba(0,0,0,.18);backdrop-filter:blur(6px);z-index:98}.mega-panel{position:absolute;top:100%;left:0;right:0;background:#fafafc;box-shadow:0 12px 18px rgba(0,0,0,.035);padding:44px 0 56px;z-index:101;animation:panel-in .2s ease}.mega-body{max-width:1000px;margin:auto;padding:0 64px;display:grid;grid-template-columns:2fr 1fr 1fr;gap:64px}.menu-caption{font-size:12px;color:var(--muted);margin-bottom:14px;font-weight:400}.mega-primary a{display:inline-block;font-size:26px;line-height:1.5;font-weight:600;letter-spacing:-.5px;margin-block:3px}.mega-secondary a{display:inline-block;font-size:13px;font-weight:550;margin-block:8px}.mega-panel a:hover{color:#000}.mega-close{position:absolute;right:max(24px,calc((100% - 1000px)/2));top:24px}
.local-header{background:rgba(255,255,255,.9);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line);position:sticky;top:var(--header);z-index:70}.local-bar{min-height:54px;display:flex;justify-content:space-between;align-items:center;gap:16px}.local-title{font-size:20px;font-weight:600;letter-spacing:-.5px}.local-links{display:flex;align-items:center;gap:24px;font-size:12px}.local-links a{min-height:44px;display:flex;align-items:center;color:var(--muted)}.local-links a[aria-current=page]{color:var(--ink)}.local-links a:hover{color:var(--blue)}
.home-hero{position:relative;overflow:hidden;background:#07080b;color:#f5f5f7;text-align:center;min-height:740px;padding:70px 24px 0}.home-hero h1{position:relative;z-index:2;font-size:clamp(52px,6.7vw,90px);font-weight:600;line-height:1.08;letter-spacing:-4px}.hero-name{display:block}.hero-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:16px;margin-top:28px;position:relative;z-index:2}.pill{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:11px 23px;border-radius:999px;background:var(--blue);color:white;font-size:16px;line-height:1.35}.pill:hover{background:#0077ed}.pill-outline{background:transparent;border:1px solid #2997ff;color:#2997ff}.pill-outline:hover{background:#0071e3;color:#fff}.link-blue{display:inline-flex;align-items:center;gap:3px;min-height:44px;color:var(--blue);font-size:17px}.link-blue:hover{text-decoration:underline}.link-blue .icon{width:16px;height:16px}.brand-sculpture{position:relative;width:min(740px,100%);height:370px;margin:26px auto 0;perspective:800px}.brand-sculpture::after{content:"";position:absolute;left:15%;right:15%;bottom:16px;height:70px;background:#224475;filter:blur(62px);opacity:.7}.orbit{position:absolute;left:9%;top:30%;width:82%;height:56%;border:18px solid #555862;border-top-color:#e1e5f0;border-left-color:#a0a4af;border-bottom-color:#171920;border-radius:50%;transform:rotate(-24deg) rotateX(18deg);box-shadow:inset 2px 4px 12px #04060c,0 3px 2px rgba(216,226,255,.3),0 25px 40px rgba(0,0,0,.8)}.orbit-two{left:25%;top:11%;width:50%;height:80%;transform:rotate(25deg) rotateY(60deg);border-width:15px;opacity:.6}.brand-letter{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:clamp(76px,10vw,134px);font-weight:750;letter-spacing:-11px;color:#d3d9e6;text-shadow:1px 2px 1px #fff,2px 7px 1px #404653,0 18px 24px #000;transform:rotate(-12deg);z-index:1}.home-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:12px}.feature-link{min-height:540px;display:flex;flex-direction:column;align-items:center;text-align:center;overflow:hidden;padding:54px 28px 24px;position:relative;background:var(--soft)}.feature-link h2{font-size:44px;font-weight:600;letter-spacing:-1.5px}.feature-link .link-blue{margin-top:8px}.feature-link .category-symbol{margin-top:44px}.category-symbol{display:grid;place-items:center;width:200px;height:220px;border-radius:36px;background:linear-gradient(155deg,#fff,#e4e6eb);box-shadow:15px 20px 28px rgba(63,70,85,.08),inset 0 2px 2px #fff;transform:rotate(-8deg);color:#1d1d1f}.category-symbol .icon{width:92px;height:92px;stroke-width:1.1}.feature-journal{background:#e9f1fa}.feature-journal .category-symbol{transform:rotate(8deg);background:#f9fbff;color:#316695}.home-directory{padding:98px 0}.section-label{font-size:40px;font-weight:600;letter-spacing:-1.5px;margin-bottom:34px}.directory-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.directory-card{display:flex;flex-direction:column;align-items:flex-start;gap:24px;min-height:246px;background:var(--soft);border-radius:28px;padding:34px;transition:transform .3s ease,box-shadow .3s ease}.directory-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(0,0,0,.06)}.directory-card h3{font-size:25px;letter-spacing:-.5px}.directory-card .card-action{display:flex;align-items:center;justify-content:space-between;width:100%;margin-top:auto;color:var(--blue);font-size:14px}
.page-heading{padding:76px 0 54px;display:flex;align-items:flex-end;justify-content:space-between;gap:24px}.page-heading h1{font-size:clamp(48px,6vw,80px);font-weight:600;line-height:1.1;letter-spacing:-3px}.page-heading .page-note{color:var(--muted);font-size:17px}.category-strip{display:flex;justify-content:center;gap:74px;background:var(--soft);padding:30px var(--pad);overflow-x:auto}.category-link{display:flex;flex-direction:column;align-items:center;gap:12px;min-width:90px;font-size:12px}.category-link .icon{width:40px;height:40px;stroke-width:1.15}.category-link:hover{color:var(--blue)}.catalogue{padding:40px 0 96px}.filter-wrap{display:flex;justify-content:center;margin-bottom:44px;max-width:100%;overflow-x:auto;padding:4px}.filters{display:flex;align-items:center;gap:0;padding:5px;background:#e8e8ed;border-radius:999px;width:max-content;max-width:100%}.filter-option{display:flex;align-items:center;justify-content:center;min-height:44px;padding:10px 24px;font-size:14px;white-space:nowrap;border-radius:999px;background:transparent;color:#545458}.filter-option[aria-selected=true],.filter-option.is-active{background:var(--ink);color:white;box-shadow:0 2px 5px rgba(0,0,0,.08)}.filter-option:not(.is-active):hover{color:#000}.catalogue-panel{min-height:320px}.catalogue-panel:focus-visible{outline-offset:6px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:340px;padding:48px 24px;color:var(--muted)}.empty-state > .icon{width:54px;height:54px;stroke-width:1.15;margin-bottom:24px;color:#929296}.empty-state h2{font-size:23px;font-weight:600;color:var(--ink);letter-spacing:-.5px}.empty-state p{font-size:15px;line-height:1.7;margin-top:12px}.empty-state .link-blue{margin-top:18px;font-size:15px}.category-directory{padding:80px 0 100px;background:var(--soft)}.category-directory .directory-card{background:#fff}.about-page{min-height:640px}.about-space{min-height:210px}.content-empty{border-top:1px solid var(--line);min-height:160px;display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:16px;gap:32px}.site-directory{padding:76px 0}.site-directory h2{font-size:36px;font-weight:600;letter-spacing:-1px;margin-bottom:30px}.directory-accordion{border-top:1px solid var(--line)}.directory-accordion details{border-bottom:1px solid var(--line)}.directory-accordion summary{display:flex;justify-content:space-between;align-items:center;cursor:pointer;padding:24px 0;list-style:none;font-size:23px;font-weight:600}.directory-accordion summary::-webkit-details-marker{display:none}.directory-accordion summary::after{content:"+";font-size:26px;font-weight:400;color:var(--muted);transition:transform .2s}.directory-accordion details[open] summary::after{transform:rotate(45deg)}.accordion-links{display:flex;flex-wrap:wrap;gap:12px 32px;padding:0 0 24px;color:var(--blue);font-size:15px}.accordion-links a{min-height:44px;display:flex;align-items:center}.accordion-links a:hover{text-decoration:underline}
.site-footer{background:var(--soft);color:var(--muted);font-size:12px;padding:28px 0}.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:14px;border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:26px}.breadcrumb .icon{width:12px;height:12px}.breadcrumb .brand{font-size:16px;min-height:24px;min-width:24px}.footer-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;padding-bottom:28px}.footer-columns h2{font-size:12px;color:var(--ink);font-weight:600;margin-bottom:10px}.footer-columns a{display:inline-flex;align-items:center;min-height:36px}.footer-columns a:hover{text-decoration:underline}.footer-base{border-top:1px solid var(--line);padding:18px 0 0;display:flex;justify-content:space-between;gap:20px}.footer-base a:hover{text-decoration:underline}
dialog{color:var(--ink);border:0;padding:0;background:#fafafc;max-height:calc(100dvh - 40px);overscroll-behavior:contain}dialog::backdrop{background:rgba(0,0,0,.3);backdrop-filter:blur(8px)}.search-dialog{width:min(760px,calc(100% - var(--header)));border-radius:22px;margin:80px auto auto;box-shadow:0 24px 70px rgba(0,0,0,.16)}.search-header{display:flex;align-items:center;gap:14px;padding:24px 26px 8px}.search-input{background:transparent;border:0;min-width:0;width:100%;min-height:48px;font-size:27px;font-weight:600;outline-offset:2px}.search-body{padding:24px 32px 38px}.search-caption{font-size:12px;color:var(--muted);margin-bottom:14px}.search-results a{display:flex;align-items:center;gap:12px;min-height:48px;font-size:16px;border-radius:8px;padding:8px 10px}.search-results a:hover{background:#ededf1}.search-results .icon{width:16px;height:16px}.search-empty{font-size:15px;color:var(--muted);padding:20px 0}.mobile-dialog{width:100%;height:100dvh;max-width:none;max-height:none;margin:0;border-radius:0}.mobile-toolbar{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;height:60px;padding:8px 18px;background:#fafafc;z-index:2}.mobile-back{display:flex;align-items:center;gap:4px;min-height:44px;background:transparent;font-size:14px;color:var(--muted)}.mobile-content{max-width:700px;margin:auto;padding:44px 44px 80px}.mobile-category{display:flex;justify-content:space-between;align-items:center;gap:12px}.mobile-category>a{font-size:31px;font-weight:600;line-height:1.6;letter-spacing:-.75px;padding-block:8px;flex:1}.mobile-category .icon-button{color:var(--muted)}.mobile-subtitle{font-size:32px;font-weight:600;margin-bottom:32px}.mobile-subgroup+.mobile-subgroup{margin-top:32px}.mobile-subgroup a{display:inline-block;min-height:44px;line-height:1.4;padding:9px 0;font-size:23px;font-weight:600;letter-spacing:-.5px}.mobile-subgroup.secondary a{font-size:16px;font-weight:500}.mobile-subgroup .menu-caption{font-size:13px}.mobile-dialog::backdrop{background:#fafafc}.modal-open{overflow:hidden}.js .enter{animation:content-in .55s ease both}.js .reveal.visible{animation:content-in .55s ease both}
#directory{scroll-margin-top:calc(var(--header) + 24px)}
@keyframes panel-in{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}@keyframes content-in{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@media(max-width:900px){.global-links{gap:36px}.mega-body{padding-inline:40px;gap:36px}.global-bar{gap:14px}.local-links{gap:16px}.home-hero{min-height:680px}.home-hero h1{font-size:70px}.directory-card{padding:28px}.feature-link{min-height:480px}.feature-link h2{font-size:36px}.category-symbol{width:170px;height:190px}}
@media(max-width:833px){:root{--pad:24px;--header:48px}.global-bar{padding-inline:14px;gap:12px}.global-links{display:none}.js .mobile-trigger{display:grid}.global-header{backdrop-filter:blur(16px)}.local-bar{min-height:54px}.local-title{font-size:19px}.local-links{font-size:11px;gap:14px}.home-hero{padding-top:56px;min-height:630px}.home-hero h1{font-size:54px;letter-spacing:-2px}.hero-actions{gap:12px;margin-top:24px}.pill{font-size:15px;padding-inline:21px}.brand-sculpture{height:310px;margin-top:30px}.orbit{left:2%;width:96%;height:52%;border-width:12px}.orbit-two{left:22%;width:56%;height:78%;border-width:10px}.brand-letter{font-size:95px;letter-spacing:-7px}.home-pair{grid-template-columns:1fr;padding:12px;gap:12px}.feature-link{min-height:460px;padding:42px 24px 20px}.feature-link h2{font-size:36px;letter-spacing:-1px}.category-symbol{width:180px;height:190px}.home-directory{padding:64px 0}.section-label{font-size:30px;margin-bottom:26px}.directory-grid{grid-template-columns:1fr;gap:18px}.directory-card{min-height:210px;border-radius:24px;padding:30px}.page-heading{padding:54px 0 36px;align-items:flex-start;flex-direction:column;gap:18px}.page-heading h1{font-size:52px;letter-spacing:-2px}.page-heading .page-note{font-size:15px}.category-strip{justify-content:flex-start;gap:36px;padding:26px 24px;scrollbar-width:thin}.category-link{min-width:70px}.catalogue{padding:28px 0 64px}.filter-wrap{justify-content:flex-start;margin-bottom:24px}.filters{min-width:max-content;max-width:none}.filter-option{padding-inline:20px;font-size:13px}.catalogue-panel{min-height:290px}.empty-state{min-height:320px;padding-inline:12px}.empty-state h2{font-size:22px}.category-directory{padding:60px 0}.about-page{min-height:580px}.about-space{min-height:160px}.content-empty{min-height:140px;align-items:flex-start;justify-content:center;flex-direction:column;gap:12px}.site-directory{padding:60px 0}.site-directory h2{font-size:30px}.directory-accordion summary{font-size:22px}.footer-columns{gap:16px}.footer-columns a{min-height:38px}.footer-base{flex-direction:column;gap:12px}.search-dialog{width:100%;max-height:100dvh;min-height:400px;border-radius:0;margin:0}.search-header{padding:14px 16px 0;gap:10px}.search-input{font-size:22px}.search-body{padding:28px 24px 40px}html:not(.js) .global-links{display:flex;gap:18px;justify-content:flex-end}html:not(.js) .global-link{font-size:12px}html:not(.js) .header-actions{display:none}html:not(.js) .global-bar{gap:8px}}
@media(max-width:360px){.home-hero h1{font-size:46px}.global-bar{padding-inline:10px}.hero-actions{gap:10px}.pill{padding-inline:17px;font-size:14px}.filter-option{padding-inline:17px}.mobile-content{padding-inline:28px}.local-links{gap:12px}.footer-columns{grid-template-columns:1fr 1fr}html:not(.js) .global-links{gap:12px}}
@media(max-height:500px) and (orientation:landscape){.mobile-content{padding-top:24px}.mobile-category>a{font-size:27px;padding-block:3px}.home-hero{padding-top:38px;min-height:600px}.search-dialog{margin-top:0}}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.global-header{background:#fafafc}.local-header{background:#fff}.menu-shade{background:rgba(0,0,0,.3)}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after,*::backdrop{animation:none!important;transition:none!important;scroll-behavior:auto!important}.directory-card:hover{transform:none}}


/* Typography and directory details, shared by all five pages. */
.global-link{font-size:13px}
.disclosure{width:32px;border-radius:8px}
.disclosure:hover{background:rgba(0,0,0,.04)}
.disclosure[aria-expanded=true] .icon{transform:rotate(180deg)}
.disclosure .icon{transition:transform .18s ease}
.mega-panel{max-height:calc(100dvh - var(--header));overflow-y:auto;padding-block:36px 44px}
.mega-body{gap:48px}
.menu-caption{line-height:1.5;margin-bottom:10px;font-size:13px}
.mega-primary a,.mega-secondary a{display:flex;align-items:center;min-height:44px;margin:0;line-height:1.4;letter-spacing:0;border-radius:8px;padding:6px 10px;margin-inline:-10px}
.mega-primary a{font-size:24px}
.mega-secondary a{font-size:14px;font-weight:500}
.mega-panel a:hover,.mobile-subgroup a:active{background:transparent}
.mega-panel a[aria-current],.mobile-subgroup a[aria-current]{color:var(--ink);background:transparent}
.mobile-category>a[aria-current]{color:var(--ink)}
.mega-panel a:focus-visible,.mobile-subgroup a:focus-visible{outline-offset:1px}
.page-heading h1{letter-spacing:-.01em;line-height:1.2}
.section-label,.site-directory h2,.feature-link h2{letter-spacing:-.01em;line-height:1.25}
.directory-card h3,.local-title{letter-spacing:0;line-height:1.35}
.empty-state h2{letter-spacing:0;line-height:1.45;text-wrap:balance;max-width:100%}
.link-blue{line-height:1.4;gap:4px}
.accordion-links{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px 16px}
.accordion-links a{padding:10px 14px;border-radius:10px;background:var(--soft);line-height:1.5}
.accordion-links a:hover{background:#e8e8ed;text-decoration:none}
.mobile-toolbar{height:calc(60px + env(safe-area-inset-top));padding:calc(8px + env(safe-area-inset-top)) max(18px,env(safe-area-inset-right)) 8px max(18px,env(safe-area-inset-left))}
.mobile-content{padding:32px max(28px,env(safe-area-inset-right)) max(48px,env(safe-area-inset-bottom)) max(28px,env(safe-area-inset-left))}
.mobile-category>a{font-size:28px;line-height:1.45;letter-spacing:0;padding-block:10px}
.mobile-subtitle{font-size:30px;line-height:1.3;letter-spacing:0;margin-bottom:24px}
.mobile-subgroup a{display:flex;align-items:center;width:100%;font-size:22px;line-height:1.4;letter-spacing:0;min-height:48px;padding:8px 12px;border-radius:10px;margin-inline:0}
.mobile-subgroup .menu-caption{margin-bottom:8px;padding-inline:12px}
.mobile-subgroup+.mobile-subgroup{margin-top:28px}
.mobile-subgroup.secondary a{min-height:44px;font-size:16px}
.search-input{line-height:1.4}
@media(pointer:coarse){.disclosure{width:44px}}
@media(max-width:900px){.mega-body{gap:28px}}
@media(max-width:833px){
  .local-links{font-size:12px;gap:12px}
  .filters{width:100%;min-width:0;max-width:100%}
  .filter-option{flex:1;min-width:max-content;padding-inline:12px;font-size:13px}
  .filter-wrap{scrollbar-width:none}
  .filter-wrap::-webkit-scrollbar{display:none}
  .accordion-links{grid-template-columns:1fr;gap:8px}
  .search-dialog{min-height:min(400px,100dvh)}
  .search-header{padding-top:calc(14px + env(safe-area-inset-top));padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right))}
  .search-body{padding-bottom:max(40px,env(safe-area-inset-bottom))}
}
@media(max-height:500px) and (orientation:landscape){.mobile-content{padding-top:20px}.mobile-category>a{font-size:25px;padding-block:6px}}
@media(prefers-reduced-motion:reduce){.disclosure .icon{transition:none}}


/* Compact mobile menu typography; visible selection follows the label. */
.mobile-content{padding-top:24px}
.mobile-category>a{display:flex;align-items:center;font-size:26px;line-height:1.35;min-height:52px;padding:0}
.mobile-link-label{display:inline-flex;align-items:center;max-width:100%;padding:6px 12px;border-radius:10px;line-height:inherit}
.mobile-category .icon{width:18px;height:18px}
.mobile-subtitle{font-size:28px;line-height:1.3;margin-bottom:20px;padding-inline:12px}
.mobile-subgroup+.mobile-subgroup{margin-top:24px}
.mobile-subgroup a{font-size:20px;min-height:44px;padding:2px 0;border-radius:0;background:transparent}
.mobile-subgroup.secondary a{font-size:16px;min-height:44px}
.mobile-category>a[aria-current],.mobile-subgroup a[aria-current],.mobile-subgroup a:active{background:transparent}
.mobile-category>a[aria-current] .mobile-link-label,.mobile-subgroup a[aria-current] .mobile-link-label{background:transparent;color:inherit}
.mobile-category>a:active .mobile-link-label,.mobile-subgroup a:active .mobile-link-label{background:transparent}
.mobile-category>a:focus-visible,.mobile-subgroup a:focus-visible{outline:none}
.mobile-category>a:focus-visible .mobile-link-label,.mobile-subgroup a:focus-visible .mobile-link-label{outline:3px solid var(--blue);outline-offset:2px}
@media(max-height:500px) and (orientation:landscape){
  .mobile-content{padding-top:16px}
  .mobile-category>a{font-size:24px;min-height:48px;padding:0}
}


/* Plain directory text, with a focus ring reserved for keyboard navigation. */
.mobile-dialog:focus{outline:none}
.mobile-link-label{border-radius:0}
.mobile-dialog .icon-button:hover,.mobile-dialog .icon-button:active{background:transparent}
.home-hero h1{color:#f5f5f7}
.js .home-hero .enter{animation:none;opacity:1;transform:none}

/* Pointer focus restoration must not paint a keyboard ring, even when the
   browser treats focus returned from a dialog as focus-visible. */
html[data-input-mode="pointer"] :is(a,button,summary,[tabindex="0"]):focus,
html[data-input-mode="pointer"] .mobile-content a:focus-visible .mobile-link-label{outline:none}
.global-header .icon-button:hover,.global-header .icon-button:active{background:transparent}

/* Native skip links clear both sticky bars before focusing the main content. */
main{scroll-margin-top:calc(var(--header) + 16px)}
.local-header + main{scroll-margin-top:calc(var(--header) + 54px + 16px)}
/* Keep the close control visible while a short desktop menu scrolls. */
.mega-toolbar{position:sticky;top:12px;height:0;z-index:2;pointer-events:none}
.mega-toolbar .mega-close{top:-12px;pointer-events:auto;background:#fafafc}
@media(max-width:833px){
  .global-bar{padding-left:max(14px,env(safe-area-inset-left));padding-right:max(14px,env(safe-area-inset-right))}
}

/* Technical blog: restrained type, product-family hierarchy and original vector illustrations. */
:root{--width:1180px;--pad:48px;--header:44px}
.global-bar{max-width:1100px;gap:16px}
.global-links{gap:25px;justify-content:space-between}
.global-link{font-size:12px}
.disclosure{width:24px}
.mega-body{max-width:1100px;grid-template-columns:2fr 1fr 1fr;padding-inline:44px;gap:64px}
.mega-primary a{font-size:23px}
.mega-primary a,.mega-secondary a{overflow-wrap:anywhere}
.eyebrow{font-size:13px;font-weight:500;line-height:1.5;color:var(--muted);letter-spacing:.015em}
.technical-hero{background:radial-gradient(ellipse at 50% 92%,#192e48 0,#0c1018 36%,#050608 75%);color:#f5f5f7;text-align:center;overflow:hidden;padding-top:62px;min-height:850px}
.hero-copy h1{font-size:clamp(54px,6.2vw,86px);line-height:1.15;font-weight:600;letter-spacing:-.035em;margin-top:18px}
.hero-copy h1 span{display:block}
.technical-hero .eyebrow{color:#a9adb7;font-size:16px}
.hero-description{font-size:21px;line-height:1.5;color:#b8bfcb;margin-top:22px}
.technical-hero .hero-actions{margin-top:28px}
.hero-art{width:min(860px,100%);height:390px;object-fit:contain;display:block;margin:22px auto 0}
.chapter-nav{padding-block:26px 32px}
.chapter-items{display:flex;justify-content:center;gap:38px;overflow-x:auto;padding:8px 4px 12px;scrollbar-width:none}
.chapter-items::-webkit-scrollbar{display:none}
.chapter-item{display:flex;flex-direction:column;align-items:center;gap:8px;flex:0 0 120px;font-size:13px;min-height:98px;text-align:center}
.chapter-item img{width:100px;height:65px;object-fit:contain}
.chapter-item:hover{color:var(--blue)}
.section-block{padding-block:96px}
.section-block:has(.series-carousel){background:var(--soft)}
.section-top{display:flex;align-items:baseline;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-top .section-label{margin-bottom:0;font-size:46px}
.section-top .link-blue{font-size:16px;flex-shrink:0}
.series-track{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding:4px 4px 20px}
.series-track::-webkit-scrollbar{display:none}
.series-card{background:#fff;border-radius:28px;overflow:hidden;flex:0 0 350px;scroll-snap-align:start;display:block;min-width:0;transition:transform .25s ease}
.series-card:hover{transform:translateY(-3px)}
.series-art{height:240px;background:linear-gradient(145deg,#fff,#f1f3f8);padding:20px 16px 0}
.series-art img{width:100%;height:100%;object-fit:contain}
.series-copy{padding:28px}
.series-copy h3{font-size:28px;font-weight:600;line-height:1.35;letter-spacing:-.02em;margin-top:8px}
.series-copy p:not(.eyebrow){font-size:14px;color:var(--muted);line-height:1.6;margin-top:12px;min-height:44px}
.series-copy .link-blue{font-size:14px;margin-top:12px}
.carousel-controls{justify-content:flex-end;gap:12px;margin-top:12px}
.js .carousel-controls{display:flex}
.carousel-controls button{width:44px;min-height:44px;border-radius:50%;background:#e8e8ed;color:#424245}
.carousel-controls button:disabled{opacity:.35}
.carousel-controls .icon{width:18px;height:18px}
.drive-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:12px}
.drive-feature{text-align:center;overflow:hidden;min-height:570px;padding:48px 24px 0;background:var(--soft)}
.drive-feature h2{font-size:44px;line-height:1.2;letter-spacing:-.02em;margin-top:8px}
.drive-feature>p:not(.eyebrow){font-size:17px;line-height:1.5;margin-top:16px;color:var(--muted)}
.drive-feature>.link-blue{font-size:17px;margin-top:16px}
.drive-feature>img{width:100%;height:320px;object-fit:contain;display:block;margin-top:16px}
.drive-feature.servo{background:linear-gradient(145deg,#0d111b,#172334);color:#f5f5f7}
.drive-feature.servo .eyebrow,.drive-feature.servo>p:not(.eyebrow){color:#b8bfcb}
.drive-feature.servo .link-blue{color:#2997ff}
.path-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.path-grid a{border-top:1px solid var(--line);padding-top:24px;min-width:0}
.path-number{color:var(--muted);font-size:13px}
.path-grid h3{font-size:23px;line-height:1.4;margin-top:18px}
.path-grid .icon{margin-top:22px;width:18px;height:18px;color:var(--blue)}
.page-heading{padding-top:80px;padding-bottom:36px}
.page-heading h1{font-size:clamp(48px,6vw,76px);line-height:1.2;font-weight:600}
.page-note{font-size:17px;max-width:520px;text-wrap:balance}
.catalogue{padding-top:44px;padding-bottom:72px}
.filter-wrap{justify-content:flex-start;overflow-x:auto;padding:5px 2px;scrollbar-width:none}
.filters{width:max-content;min-width:max-content;max-width:none;padding:5px;flex-shrink:0}
.filter-option{flex:none;padding:12px 22px;min-height:44px;white-space:nowrap;line-height:1.4}
.catalogue-panel{min-height:200px}
.family-section{padding-block:30px 42px}
.family-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:28px}
.family-heading h2{font-size:34px;line-height:1.3;margin-top:5px;font-weight:600;letter-spacing:-.01em}
.family-heading img{width:180px;height:110px;object-fit:contain}
.knowledge-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.knowledge-card{background:var(--soft);border-radius:24px;min-width:0;scroll-margin-top:calc(var(--header) + 54px + 24px)}
.knowledge-card>summary{list-style:none;display:block;position:relative;cursor:pointer;min-height:234px;padding:30px 28px 60px;overflow-wrap:anywhere}
.knowledge-card>summary::-webkit-details-marker{display:none}
.topic-family{font-size:12px;color:var(--muted);line-height:1.5}
.knowledge-card h3{font-size:25px;line-height:1.35;letter-spacing:-.01em;font-weight:600;margin-top:12px}
.topic-preview{display:block;font-size:14px;line-height:1.6;color:var(--muted);margin-top:15px}
.topic-more{display:grid;place-items:center;position:absolute;bottom:18px;right:20px;width:32px;height:32px;border-radius:50%;background:#dedee3;color:#424245}
.topic-more .icon{width:18px;height:18px}
.knowledge-card[open] .topic-more{transform:rotate(45deg)}
.knowledge-body{padding:0 28px 28px}
.knowledge-items{display:grid;gap:0}
.knowledge-items li{padding:15px 0;border-bottom:1px solid var(--line);font-size:17px;line-height:1.55;overflow-wrap:anywhere}
.knowledge-body .link-blue{font-size:14px;margin-top:16px}
.topic-subheading{font-size:13px;color:var(--muted);margin-top:26px}
.platform-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.platform-tags li{font-size:12px;line-height:1.5;padding:5px 10px;background:#e8e8ed;border-radius:8px}
.systems-visual{display:grid;grid-template-columns:1fr 1fr;align-items:center;height:280px;border-radius:28px;background:linear-gradient(130deg,#f5f5f7,#edf1f8);overflow:hidden}
.systems-visual img{width:100%;height:280px;object-fit:contain}
.site-directory{padding-block:72px;scroll-margin-top:calc(var(--header) + 54px + 20px)}
.site-directory h2{font-size:44px;line-height:1.3}
.directory-accordion summary{font-size:24px;line-height:1.4;min-height:64px;padding-block:20px}
.accordion-links{grid-template-columns:repeat(3,minmax(0,1fr));padding-bottom:24px}
.accordion-links a{display:flex;align-items:center;min-height:44px;font-size:14px}
.empty-state{min-height:330px}
.empty-state h2{font-size:24px;line-height:1.45}
.empty-state .icon{color:#a1a1a6}
.about-intro{padding-block:44px 72px;text-align:left}
.about-intro h2{font-size:clamp(32px,4.6vw,56px);line-height:1.3;letter-spacing:-.02em;margin-top:16px}
.about-intro>p:not(.eyebrow){font-size:23px;color:var(--muted);margin-top:20px}
.about-intro>.link-blue{margin-top:22px}
.about-intro img{display:block;width:min(750px,100%);height:360px;object-fit:contain;margin:28px auto 0}
.technical-footer{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:24px;padding-bottom:32px}
.footer-section summary{list-style:none;font-size:12px;font-weight:600;line-height:1.5}
.footer-section summary::-webkit-details-marker{display:none}
.footer-section summary .icon{display:none}
.footer-section ul{padding-top:10px}
.footer-section a{display:flex;align-items:center;min-height:36px;font-size:12px;line-height:1.5;color:var(--muted)}
.footer-section a:hover{text-decoration:underline}
.topic-dialog{width:min(900px,calc(100% - 64px));max-height:calc(100dvh - 64px);border-radius:28px;margin:auto;background:#fff;box-shadow:0 24px 80px rgba(0,0,0,.15)}
.topic-dialog:focus{outline:none}
.topic-toolbar{position:sticky;top:0;z-index:2;display:flex;justify-content:flex-end;padding:16px 16px 0;background:#fff}
.topic-toolbar button{background:#f5f5f7;border-radius:50%;width:44px;min-height:44px}
.topic-dialog-content{padding:18px 64px 60px}
.topic-dialog h2{font-size:44px;line-height:1.25;letter-spacing:-.02em;margin:14px 0 30px;text-wrap:balance;overflow-wrap:anywhere}
.topic-dialog .knowledge-items li{font-size:20px;padding-block:18px}
.topic-dialog .link-blue{margin-top:30px}
.mobile-category-button{display:flex;align-items:center;justify-content:space-between;width:100%;text-align:left;background:transparent;min-height:52px;font-size:26px;font-weight:600;color:var(--ink);padding:0;line-height:1.35}
.mobile-category-button>.icon{width:16px;height:16px;color:#86868b}
.mobile-category-button:focus-visible{outline:none}
.mobile-category-button:focus-visible .mobile-link-label{outline:3px solid var(--blue);outline-offset:2px}
html[data-input-mode="pointer"] .mobile-category-button:focus-visible .mobile-link-label{outline:none}
.mobile-home{display:flex;align-items:center;min-height:52px;font-size:26px;font-weight:600;line-height:1.35}
.icon-button{flex-shrink:0}
.search-dialog{min-height:0;max-width:none;max-height:calc(100dvh - 48px);overflow-y:auto}
.search-header{position:sticky;top:0;z-index:2;background:#fafafc}
.search-results a{overflow-wrap:anywhere}
.search-input{font-size:24px}
@media(min-width:834px){.footer-section summary{pointer-events:none}.footer-section summary:focus-visible{outline:none}}
@media(max-width:1100px){.global-links{gap:10px}.global-bar{padding-inline:16px}.disclosure{width:20px}.series-card{flex-basis:320px}.path-grid{gap:20px}.technical-footer{gap:18px}}
@media(max-width:833px){
 :root{--pad:40px;--header:48px}
 .global-bar{padding-inline:max(14px,env(safe-area-inset-left)) max(14px,env(safe-area-inset-right))}
 .technical-hero{padding-top:56px;min-height:760px}
 .hero-copy h1{font-size:64px;letter-spacing:-.025em}
 .hero-art{height:350px}
 .chapter-items{justify-content:flex-start;gap:24px}
 .chapter-item{flex-basis:100px}
 .section-block{padding-block:72px}
 .section-top .section-label{font-size:38px}
 .series-card{flex-basis:310px}
 .series-art{height:210px}
 .drive-feature{min-height:510px;padding-top:38px}
 .drive-feature h2{font-size:36px}
 .drive-feature>img{height:270px}
 .path-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
 .knowledge-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
 .page-heading{padding-top:56px}
 .page-heading h1{font-size:58px}
 .filter-option{padding-inline:18px;font-size:14px}
 .technical-footer{display:block;padding-bottom:20px}
 .footer-section{border-bottom:1px solid var(--line)}
 .footer-section summary{display:flex;align-items:center;justify-content:space-between;cursor:pointer;min-height:48px;font-size:13px}
 .footer-section summary .icon{display:block;width:14px;height:14px}
 .footer-section[open] summary .icon{transform:rotate(45deg)}
 .footer-section ul{padding:0 14px 16px}
 .footer-section a{font-size:13px;min-height:38px}
 html:not(.js) .global-header{height:auto;min-height:48px}
 html:not(.js) .global-bar{flex-wrap:wrap;justify-content:center;gap:0 16px;padding-block:6px}
 html:not(.js) .global-links{flex:1 1 100%;height:auto;justify-content:center;flex-wrap:wrap;gap:0 20px}
 html:not(.js) .global-item{height:auto}
 html:not(.js) .global-link{min-height:40px;line-height:40px}
}
@media(max-width:600px){
 :root{--pad:24px}
 .technical-hero{padding-top:44px;min-height:670px}
 .hero-copy h1{font-size:48px;line-height:1.2;margin-top:14px}
 .technical-hero .eyebrow{font-size:14px}
 .hero-description{font-size:18px;margin-top:18px}
 .technical-hero .hero-actions{gap:12px;margin-top:24px}
 .pill{font-size:14px;padding:11px 18px}
 .hero-art{height:310px;width:125%;max-width:none;margin-left:-12.5%;margin-top:14px}
 .chapter-nav{padding-block:18px 20px}
 .chapter-items{gap:24px}
 .chapter-item{flex-basis:84px;font-size:12px}
 .chapter-item img{width:84px;height:58px}
 .section-block{padding-block:56px}
 .section-top{align-items:flex-start;gap:14px;margin-bottom:28px}
 .section-top .section-label{font-size:32px}
 .section-top .link-blue{font-size:14px}
 .series-card{flex-basis:min(300px,calc(100vw - 62px));border-radius:24px}
 .series-track{gap:16px}
 .series-copy{padding:24px}
 .series-copy h3{font-size:25px}
 .drive-pair{grid-template-columns:1fr}
 .drive-feature{min-height:490px;padding:36px 20px 0}
 .drive-feature h2{font-size:36px}
 .drive-feature>p:not(.eyebrow){font-size:16px}
 .drive-feature>img{height:280px}
 .path-grid h3{font-size:20px}
 .page-heading{padding-block:44px 26px;gap:14px}
 .page-heading h1{font-size:48px}
 .page-note{font-size:15px}
 .catalogue{padding-top:26px;padding-bottom:36px}
 .filter-option{font-size:13px;padding-inline:16px}
 .family-section{padding-block:24px 28px}
 .family-heading{gap:12px;margin-bottom:22px}
 .family-heading h2{font-size:28px}
 .family-heading img{width:120px;height:84px}
 .knowledge-grid{grid-template-columns:1fr;gap:16px}
 .knowledge-card>summary{min-height:220px;padding:26px 24px 58px}
 .knowledge-card h3{font-size:24px}
 .knowledge-body{padding-inline:24px}
 .systems-visual{height:190px;border-radius:24px}
 .systems-visual img{height:190px}
 .site-directory{padding-block:46px}
 .site-directory h2{font-size:32px}
 .accordion-links{grid-template-columns:1fr}
 .directory-accordion summary{font-size:21px}
 .about-intro{padding-block:24px 48px}
 .about-intro h2{font-size:34px}
 .about-intro>p:not(.eyebrow){font-size:19px}
 .about-intro img{height:250px}
 .topic-dialog{width:calc(100% - 24px);max-height:calc(100dvh - 32px);border-radius:24px}
 .topic-dialog-content{padding:12px 26px 34px}
 .topic-dialog h2{font-size:32px;line-height:1.3;margin-bottom:22px}
 .topic-dialog .knowledge-items li{font-size:17px;padding-block:16px}
 .search-dialog{max-height:100dvh}
 .search-input{font-size:21px}
 .local-title{font-size:18px}
 .local-links{gap:12px;font-size:11px}
}
@media(max-width:360px){.hero-copy h1{font-size:42px}.technical-hero .hero-actions{gap:8px}.technical-hero .pill{font-size:13px;padding-inline:14px}.hero-description{font-size:17px}.section-top{flex-wrap:wrap}.local-links{gap:9px}.mobile-category-button,.mobile-home{font-size:25px}}
@media(max-height:500px) and (orientation:landscape){.mobile-category-button,.mobile-home{min-height:46px;font-size:24px}.topic-dialog{max-height:calc(100dvh - 20px)}.topic-dialog-content{padding-bottom:28px}.topic-dialog h2{font-size:30px}}
@media(prefers-reduced-motion:reduce){.series-card:hover{transform:none}}


/* Static editorial photographs. Image pixels do not animate. */
.technical-hero{position:relative;isolation:isolate;min-height:780px;padding:70px 24px 370px;background:#07080b}
.technical-hero .hero-copy{position:relative;z-index:2}
.technical-hero::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(180deg,rgba(4,6,9,.22),rgba(4,6,9,.08) 54%,rgba(4,6,9,.04) 75%,rgba(4,6,9,.32))}
.technical-hero .hero-art{position:absolute;inset:0;z-index:0;width:100%;height:100%;max-width:none;margin:0;object-fit:cover;object-position:50% 60%;animation:none;transform:none}
.chapter-item img{object-fit:cover;border-radius:10px}
.series-art{padding:0;background:#f5f5f7}
.series-art img{object-fit:cover;animation:none;transform:none}
.drive-feature{padding-bottom:24px}
.drive-feature>img{width:min(100%,760px);height:auto;aspect-ratio:3/2;object-fit:cover;margin:24px auto 0;border-radius:18px;animation:none;transform:none}
.family-heading img{object-fit:cover;border-radius:14px}
.systems-visual{height:auto;gap:12px;background:transparent;overflow:visible;border-radius:0}
.systems-visual img{height:auto;aspect-ratio:3/2;object-fit:cover;border-radius:22px;animation:none;transform:none}
.about-intro img{height:auto;aspect-ratio:3/2;object-fit:cover;border-radius:24px;animation:none;transform:none}
@media(max-width:833px){.technical-hero{min-height:730px;padding:58px 24px 330px}.family-heading img{width:150px;height:100px}}
@media(max-width:600px){.technical-hero{min-height:660px;padding:46px 20px 300px}.technical-hero .hero-art{width:100%;height:100%;margin:0;object-position:53% 65%}.chapter-item img{border-radius:8px}.family-heading img{width:108px;height:72px;border-radius:10px}.drive-feature{padding-bottom:20px}.drive-feature>img{border-radius:14px}.systems-visual{grid-template-columns:1fr;gap:14px}.systems-visual img{border-radius:18px}.about-intro img{border-radius:18px}}

/* Global navigation: dark material separates the directory from page content.
   The surface opens first; independent text motion never scales the glyphs. */
:root{--nav-surface:#161617;--nav-text:#e8e8ed;--nav-caption:#86868b;--nav-ease:cubic-bezier(.4,0,.6,1)}
.global-header{background:rgba(29,29,31,.92);color:var(--nav-text);border-bottom-color:rgba(255,255,255,.08);transition:background-color .32s var(--nav-ease)}
.global-header[data-menu-open]{background:var(--nav-surface);border-bottom-color:transparent}
.global-header::after{content:"";position:absolute;left:0;right:0;top:100%;height:var(--nav-height,0px);background:var(--nav-surface);pointer-events:none;transition:height .32s var(--nav-ease)}
.global-bar{position:relative;z-index:1}
.global-header .brand{color:#f5f5f7}
.global-header .global-link,.global-header .disclosure,.global-header .icon-button{color:var(--nav-text)}
.global-header .global-link[aria-current=page]{color:#fff}
.global-header .disclosure{width:auto;padding:0 8px;font-size:12px;font-weight:400;white-space:nowrap;border-radius:0;transition:color .24s}
.global-header .disclosure:hover,.global-header .disclosure[aria-expanded=true]{color:#fff;background:transparent}
@media(min-width:834px){.js .global-item>.global-link{display:none}.js .global-item>.disclosure{display:flex;align-items:center;justify-content:center}}
.mega-panel{background:transparent;color:var(--nav-text);box-shadow:none;animation:nav-surface-in .32s var(--nav-ease) both;padding-block:36px 48px}
.mega-panel.nav-switching{animation:none}
.mega-panel .menu-caption{color:var(--nav-caption);font-size:12px}
.mega-panel a,.mega-panel a[aria-current]{color:var(--nav-text)}
.mega-panel a:hover{color:#fff}
.mega-toolbar .mega-close{background:var(--nav-surface);color:var(--nav-text)}
.mega-body>div :is(.menu-caption,li){animation:nav-text-in .32s var(--nav-ease) both;animation-delay:calc(60ms + var(--nav-order,0)*20ms)}
.mega-body>div:nth-child(2) :is(.menu-caption,li){animation-delay:calc(100ms + var(--nav-order,0)*20ms)}
.mega-body>div:nth-child(3) :is(.menu-caption,li){animation-delay:calc(140ms + var(--nav-order,0)*20ms)}
.mega-panel.nav-closing{animation:nav-surface-out .24s var(--nav-ease) both;pointer-events:none}
.mega-panel.nav-closing .mega-body{animation:nav-text-out .16s ease both}
.menu-shade{background:rgba(0,0,0,.22);animation:nav-shade-in .32s ease both}
.menu-shade.nav-closing{animation:nav-shade-out .24s ease both;pointer-events:none}
.mobile-dialog,.mobile-toolbar{background:var(--nav-surface);color:var(--nav-text)}
.mobile-dialog::backdrop{background:rgba(0,0,0,.18);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);animation:nav-shade-in .4s ease both}
.mobile-dialog.nav-closing::backdrop{animation:nav-shade-out .28s ease both}
.mobile-dialog[open]{animation:nav-mobile-in .4s var(--nav-ease) both}
.mobile-dialog.nav-closing{animation:nav-mobile-out .28s var(--nav-ease) both}
.mobile-dialog .mobile-back,.mobile-dialog .icon-button{color:var(--nav-text)}
.mobile-toolbar{height:calc(48px + env(safe-area-inset-top));padding-top:env(safe-area-inset-top);padding-bottom:0}
.mobile-dialog .mobile-content{padding-top:32px;overflow-x:clip}
.mobile-dialog .mobile-category-button,.mobile-dialog .mobile-home,.mobile-dialog .mobile-category>a{color:var(--nav-text);font-size:28px;font-weight:600;line-height:1.35;min-height:50px}
.mobile-dialog .mobile-category-button:hover{color:#fff;background:transparent}
.mobile-dialog .mobile-subtitle{color:var(--nav-text);font-size:28px;line-height:1.3}
.mobile-dialog .mobile-subgroup a,.mobile-dialog .mobile-subgroup a[aria-current]{color:var(--nav-text);font-size:25px;font-weight:600;line-height:1.25;min-height:44px}
.mobile-dialog .mobile-subgroup.secondary a{font-size:17px;font-weight:500}
.mobile-dialog .menu-caption{color:var(--nav-caption);font-size:12px}
.mobile-dialog [data-mobile-root]:not([hidden])>*{animation:nav-text-in .32s var(--nav-ease) both;animation-delay:calc(80ms + var(--nav-order,0)*24ms)}
.mobile-dialog [data-mobile-sub]:not([hidden]){animation:nav-sub-in .32s var(--nav-ease) both}
.mobile-dialog [data-mobile-sub]:not([hidden]) :is(.menu-caption,li){animation:nav-text-in .32s var(--nav-ease) both;animation-delay:calc(60ms + var(--nav-order,0)*20ms)}
.mobile-dialog[data-menu-direction=back] [data-mobile-root]:not([hidden]){animation:nav-root-back .32s var(--nav-ease) both}
.mobile-dialog[data-menu-direction=back] [data-mobile-root]:not([hidden])>*{animation-delay:calc(var(--nav-order,0)*18ms)}
.mobile-dialog.nav-closing .mobile-content{animation:nav-text-out .16s ease both;pointer-events:none}
.search-dialog{background:var(--nav-surface);color:var(--nav-text)}
.search-dialog .search-header{background:var(--nav-surface)}
.search-dialog[open]{animation:nav-search-in .32s var(--nav-ease) both}
.search-dialog.nav-closing{animation:nav-text-out .24s ease both;pointer-events:none}
.search-dialog::backdrop{animation:nav-shade-in .32s ease both}
.search-dialog.nav-closing::backdrop{animation:nav-shade-out .24s ease both}
.search-dialog .search-input{color:var(--nav-text)}
.search-dialog .search-input::placeholder,.search-dialog .search-caption,.search-dialog .search-empty{color:var(--nav-caption)}
.search-dialog .search-results a:hover{background:#252527}
.search-dialog .search-results a{color:var(--nav-text)}
.search-dialog .icon-button{color:var(--nav-text)}
.mega-panel :focus-visible,.mobile-dialog :focus-visible,.search-dialog :focus-visible{outline-color:#2997ff}
@keyframes nav-surface-in{from{clip-path:inset(0 0 100% 0)}to{clip-path:inset(0)}}
@keyframes nav-surface-out{from{clip-path:inset(0)}to{clip-path:inset(0 0 100% 0)}}
@keyframes nav-mobile-in{from{clip-path:inset(0 0 calc(100% - var(--header)) 0)}to{clip-path:inset(0)}}
@keyframes nav-mobile-out{from{clip-path:inset(0)}to{clip-path:inset(0 0 calc(100% - var(--header)) 0)}}
@keyframes nav-text-in{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
@keyframes nav-text-out{from{opacity:1;transform:none}to{opacity:0;transform:translateY(-4px)}}
@keyframes nav-sub-in{from{opacity:0;transform:translateX(16px)}to{opacity:1;transform:none}}
@keyframes nav-root-back{from{opacity:0;transform:translateX(-16px)}to{opacity:1;transform:none}}
@keyframes nav-search-in{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
@keyframes nav-shade-in{from{opacity:0}to{opacity:1}}
@keyframes nav-shade-out{from{opacity:1}to{opacity:0}}
@media(max-height:500px) and (orientation:landscape){.mobile-dialog .mobile-content{padding-top:20px}.mobile-dialog .mobile-category-button{font-size:25px;min-height:46px}}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.global-header{background:#1d1d1f}}
@media(prefers-reduced-motion:reduce){.global-header,.mega-panel,.mobile-dialog,.mobile-dialog::backdrop,.search-dialog,.search-dialog::backdrop,.menu-shade{animation:none!important;transition:none!important}}


/* Search shares the global directory surface, with an independent text reveal.
   Desktop geometry follows the official 1024px search container; mobile is a full-height sheet. */
html.modal-open{scrollbar-gutter:stable}
.global-header[data-search-open]{background:var(--nav-surface);border-bottom-color:transparent}
.search-dialog{position:fixed;inset:var(--header) 0 auto;width:100%;max-width:none;height:auto;min-height:0;max-height:calc(100dvh - var(--header));margin:0;border:0;border-radius:0;box-shadow:none;overflow-y:auto;overflow-x:clip;overscroll-behavior:contain;background:transparent;color:var(--nav-text);z-index:101;outline:none}
.search-dialog[open]{animation:nav-surface-in .32s var(--nav-ease) both}
.search-dialog.nav-closing{animation:nav-surface-out .24s var(--nav-ease) both;pointer-events:none}
.search-form{max-width:1024px;margin-inline:auto;padding:32px 22px 80px}
.search-toolbar{display:none}
.search-dialog .search-header{position:relative;top:auto;display:block;padding:0;height:40px;background:transparent;animation:nav-text-in .32s var(--nav-ease) both;animation-delay:40ms}
.search-dialog .search-input{display:block;width:calc(100% + 14px);height:40px;min-height:40px;margin-left:-8px;padding:0 40px 0 42px;background:transparent;color:var(--nav-text);border:0;border-radius:0;font-size:24px;font-weight:600;line-height:1.2;letter-spacing:0;box-shadow:none;appearance:none;-webkit-appearance:none}
.search-dialog .search-input:focus,.search-dialog .search-input:focus-visible{outline:none;box-shadow:none;border:0}
.search-input::-webkit-search-cancel-button,.search-input::-webkit-search-decoration{appearance:none;-webkit-appearance:none}
.search-dialog .search-input::placeholder{color:var(--nav-caption);opacity:1}
.search-header .icon-button{position:absolute;top:-2px;width:44px;height:44px;min-height:44px;border-radius:0;background:transparent;color:var(--nav-caption)}
.search-header .search-submit{left:-8px}
.search-header .search-clear{right:-14px}
.search-header .icon{width:20px;height:20px;stroke-width:1.8}
.search-header .search-submit:hover,.search-header .search-clear:hover{color:var(--nav-text);background:transparent}
.search-clear:disabled{visibility:hidden}
.search-dialog .search-body{padding:0;margin-top:32px}
.search-dialog .search-caption{font-size:12px;line-height:16px;font-weight:400;margin:0 0 8px;color:var(--nav-caption);animation:nav-text-in .32s var(--nav-ease) both;animation-delay:80ms}
.search-dialog .search-results{display:grid;gap:0;margin-inline:-12px}
.search-dialog .search-results a{display:flex;align-items:center;gap:10px;min-height:27.2px;padding:5px 12px;font-size:12px;font-weight:600;line-height:17.2px;border-radius:4px;color:var(--nav-text);animation:nav-text-in .32s var(--nav-ease) both;animation-delay:calc(80ms + var(--nav-order,0)*20ms)}
.search-results a>span:first-child{color:var(--nav-caption);font-size:17px;font-weight:400;line-height:1;flex-shrink:0;width:14px}
.search-dialog .search-results a:hover{background:#252527;color:#fff}
.search-dialog .search-empty{padding:8px 0 0;font-size:12px;line-height:1.5;color:var(--nav-caption)}
.search-dialog.nav-closing :is(.search-header,.search-body){animation:nav-text-out .16s ease both}
.search-dialog::backdrop{background:rgba(0,0,0,.22);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
@media(max-width:833px){
 .search-dialog{inset:0;width:100%;height:100dvh;min-height:100dvh;max-height:100dvh;padding-top:env(safe-area-inset-top);background:var(--nav-surface)}
 .search-dialog[open]{animation:nav-mobile-in .4s var(--nav-ease) both}
 .search-dialog.nav-closing{animation:nav-mobile-out .24s var(--nav-ease) both}
 .search-dialog .search-toolbar{position:sticky;top:0;height:48px;display:flex;align-items:center;justify-content:flex-end;padding-right:env(safe-area-inset-right);background:var(--nav-surface);z-index:2}
 .search-toolbar .icon-button{width:48px;height:48px;border-radius:0;color:var(--nav-text);background:transparent}
 .search-toolbar .icon{width:20px;height:20px}
 .search-dialog .search-form{max-width:1024px;padding:6px max(48px,env(safe-area-inset-right)) max(48px,env(safe-area-inset-bottom)) max(48px,env(safe-area-inset-left))}
 .search-dialog .search-input{font-size:28px;line-height:28px}
 .search-dialog .search-body{margin-top:49px}
 .search-dialog .search-caption{font-size:17px;line-height:21px;margin-bottom:9px}
 .search-dialog .search-results{gap:6px}
 .search-dialog .search-results a{font-size:17px;line-height:26px;min-height:33px;padding:4px 12px 3px;gap:12px}
 .search-results a>span:first-child{font-size:19px;width:17px}
 .search-dialog .search-empty{font-size:17px}
}
@media(prefers-reduced-motion:reduce){.search-dialog,.search-dialog::backdrop,.search-dialog *{animation:none!important;transition:none!important}}

/* One grid for global categories and search. Mobile directories start below the toolbar. */
@media(min-width:834px){
 .global-bar,.mega-body{max-width:1024px;padding-inline:22px}
 .mega-body{gap:60px}
 .mega-primary a{font-size:24px;line-height:1.25}
}
.menu-shade{backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.mobile-dialog .mobile-toolbar{padding-inline:env(safe-area-inset-left) env(safe-area-inset-right)}
.mobile-dialog .mobile-toolbar>.icon-button{width:48px;height:48px}
.mobile-dialog .mobile-content{max-width:1024px;padding:0 max(48px,env(safe-area-inset-right)) max(80px,env(safe-area-inset-bottom)) max(48px,env(safe-area-inset-left))}
.mobile-dialog .mobile-category-button,.mobile-dialog .mobile-home{min-height:46px;font-size:28px;line-height:28px;padding-block:7.5px}
.mobile-dialog .mobile-link-label{padding:0;border-radius:0}
.mobile-dialog .mobile-subtitle,.mobile-dialog .mobile-subgroup:not(.secondary)>.menu-caption{position:absolute;width:1px;height:1px;margin:0;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.mobile-dialog .mobile-subgroup:not(.secondary) a{font-size:28px;line-height:28px;min-height:46px;padding:7.5px 0}
.mobile-dialog .mobile-subgroup+.mobile-subgroup{margin-top:44px}
.mobile-dialog .mobile-subgroup.secondary .menu-caption{font-size:17px;line-height:21px;margin-bottom:14px}
.mobile-dialog .mobile-subgroup.secondary a{font-size:17px;line-height:26px;min-height:44px;padding:9px 0}

/* Whole-site photo uniqueness: navigation/directory lists use text. */
.chapter-items.photo-free{gap:24px;align-items:center;padding-block:4px}
.chapter-items.photo-free .chapter-item{flex:0 0 auto;justify-content:center;min-height:44px;padding:8px 12px;font-size:14px;line-height:1.5}
.series-art [data-photo="motion"]{object-position:53% 48%}
.series-art [data-photo="debug"]{object-position:58% 52%}
.series-art [data-photo="engineering"]{object-position:48% 58%}
.drive-feature.inverter>[data-photo="inverter"]{object-fit:contain;aspect-ratio:3/2;background:#fff}
.drive-feature.photo-pending{display:flex;flex-direction:column;justify-content:center;padding-bottom:48px}
@media(max-width:600px){.chapter-items.photo-free{gap:8px}.chapter-items.photo-free .chapter-item{padding-inline:10px;font-size:13px}.series-art [data-photo="debug"]{object-position:58% 50%}.drive-feature.photo-pending{min-height:300px;padding-block:48px}}

/* Shared toggle geometry and animation across native modal top-layer boundaries.
   A single inherited progress prevents separate icons from restarting or jumping. */
@property --nav-toggle-progress{syntax:"<number>";inherits:true;initial-value:0}
html{--nav-toggle-progress:0;transition:--nav-toggle-progress .24s ease-in-out}
html.nav-toggle-open{--nav-toggle-progress:1}
.menu-lines{display:block;position:relative;width:18px;height:18px;flex-shrink:0;--toggle-fold:clamp(0,calc(2 * var(--nav-toggle-progress)),1);--toggle-turn:clamp(0,calc(2 * var(--nav-toggle-progress) - 1),1)}
.menu-lines>span,.menu-lines>span+span{position:absolute;left:50%;top:50%;height:1.2px;margin-top:-.6px;width:calc(14px + 2.263px * var(--toggle-turn));border-radius:1px;background:currentColor;transform-origin:center;transition:none}
.menu-lines>span:first-child{transform:translateX(-50%) translateY(calc(-3.5px + 3.5px * var(--toggle-fold))) rotate(calc(45deg * var(--toggle-turn)))}
.menu-lines>span+span{transform:translateX(-50%) translateY(calc(3.5px - 3.5px * var(--toggle-fold))) rotate(calc(-45deg * var(--toggle-turn)))}
@media(max-width:833px){
 :root{--nav-row:48px;--nav-control:48px;--nav-edge-left:max(14px,env(safe-area-inset-left));--nav-edge-right:max(14px,env(safe-area-inset-right));--header:calc(var(--nav-row) + env(safe-area-inset-top))}
 .global-header{padding-top:env(safe-area-inset-top);border-bottom:0}
 .global-bar{height:var(--nav-row);max-width:none;padding-inline:var(--nav-edge-left) var(--nav-edge-right)}
 .header-actions{gap:0;flex-shrink:0}
 .header-actions .icon-button,.mobile-dialog .mobile-toolbar>.icon-button,.search-toolbar .icon-button{width:var(--nav-control);height:var(--nav-control);min-height:var(--nav-control);padding:0;flex-shrink:0;border-radius:0}
 .mobile-dialog .mobile-toolbar,.search-dialog .search-toolbar{height:var(--header);padding-top:env(safe-area-inset-top);padding-bottom:0;padding-inline:var(--nav-edge-left) var(--nav-edge-right)}
 .search-dialog{padding-top:0}
 html:not(.js) .global-bar{height:auto;min-height:var(--nav-row)}
}
@media(prefers-reduced-motion:reduce){html{transition:none!important}}

/* Approved peers share typography. Utility links remain outside the taxonomy. */
.technical-hero .hero-description{max-width:740px;text-wrap:balance}
.technical-hero .hero-context{color:#d2d2d7;font-size:16px;line-height:1.6;margin-top:12px;text-wrap:balance}
.taxonomy-mega{grid-template-columns:repeat(3,minmax(0,1fr));gap:42px}
.taxonomy-mega:has(>.mega-peer:nth-child(2):last-child){grid-template-columns:repeat(2,minmax(0,1fr))}
.mega-peer{min-width:0}
.mega-peer a{display:flex;align-items:center;min-height:44px;padding:7px 0;color:var(--nav-text);font-size:20px;font-weight:600;line-height:1.4;overflow-wrap:anywhere;letter-spacing:-.01em}
.mega-peer .menu-caption{color:var(--nav-caption);font-size:13px;line-height:1.5;margin-bottom:12px}
.mega-peer a:hover{color:#fff}
.mega-utility{max-width:1024px;margin:28px auto 0;padding-inline:22px}
.mega-utility a{display:inline-flex;align-items:center;min-height:44px;color:var(--nav-caption);font-size:14px}
.mega-utility a:hover{color:#fff}
.mega-body>.mega-peer :is(.menu-caption,li){animation:nav-text-in .32s var(--nav-ease) both;animation-delay:calc(60ms + var(--nav-order,0)*20ms)}
.mobile-dialog[data-menu-direction=back] [data-mobile-sub]:not([hidden]){animation:nav-root-back .32s var(--nav-ease) both}
.protocol-heading{font-size:25px;font-weight:600;line-height:1.4;margin:26px 0 20px}
.protocol-heading:not(:first-child){margin-top:46px}
.topic-related{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:14px}
.topic-related a{display:flex;align-items:center;min-height:44px;color:var(--blue);font-size:15px;line-height:1.5}
.directory-section-label{font-size:15px;font-weight:600;color:var(--muted);margin:36px 0 16px}
.section-intro{font-size:18px;line-height:1.7;max-width:740px;color:var(--muted);margin:16px 0 28px;overflow-wrap:anywhere}
.reading-guide{padding-block:36px 90px;scroll-margin-top:calc(var(--header) + 80px)}
.reading-guide h2{font-size:34px;line-height:1.35;font-weight:600}
.reading-guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin-top:32px}
.reading-guide-grid h3{font-size:23px;line-height:1.4;font-weight:600;margin-bottom:12px}
.reading-guide-grid p{font-size:17px;color:var(--muted);line-height:1.8}
.about-intro>p:not(.eyebrow){max-width:820px;line-height:1.65}
.article-type-filter{display:none;align-items:center;flex-wrap:wrap;gap:8px;margin:-16px 0 30px}
.js .article-type-filter{display:flex}
.article-type-filter>span{font-size:13px;color:var(--muted);margin-right:10px}
.article-type-filter button{display:inline-flex;align-items:center;min-height:44px;background:transparent;border-radius:22px;padding:10px 16px;font-size:14px;line-height:1.5;color:var(--muted)}
.article-type-filter button[aria-pressed=true]{background:#e8e8ed;color:var(--ink)}
.article-type-filter button:hover{color:var(--ink)}
.article-index{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.article-index-card{display:flex;flex-direction:column;background:var(--soft);border-radius:24px;padding:30px;min-width:0;min-height:260px;color:var(--ink)}
.article-meta{display:block;font-size:12px;color:var(--muted);line-height:1.6;overflow-wrap:anywhere}
.article-index-card h3{font-size:26px;font-weight:600;line-height:1.35;letter-spacing:-.02em;margin-top:14px;overflow-wrap:anywhere}
.article-index-card p{font-size:15px;color:var(--muted);line-height:1.8;margin-top:16px}
.article-index-card .link-blue{margin-top:auto;padding-top:20px;min-height:44px;font-size:15px}
.article-index-card:hover h3{color:var(--blue)}
.article-corpus{margin-top:72px}
.article-entry{border-top:1px solid var(--line);scroll-margin-top:calc(var(--header) + 84px)}
.article-entry:last-child{border-bottom:1px solid var(--line)}
.article-entry>summary{display:block;list-style:none;cursor:pointer;position:relative;padding:28px 0 30px;min-height:100px}
.article-entry>summary::-webkit-details-marker{display:none}
.article-entry h2{font-size:clamp(23px,3vw,34px);font-weight:600;line-height:1.4;letter-spacing:-.02em;overflow-wrap:anywhere;margin:8px 0 12px;max-width:850px}
.article-expand{display:inline-flex;align-items:center;gap:7px;min-height:44px;font-size:14px;color:var(--blue)}
.article-expand .icon{width:16px;height:16px}
.article-entry[open] .article-expand .icon{transform:rotate(45deg)}
.article-body{max-width:780px;margin:0 auto;padding:8px 0 54px;overflow-wrap:anywhere}
.article-body p,.article-body li{font-size:17px;line-height:1.85;letter-spacing:0}
.article-body p+p{margin-top:16px}
.article-body .article-lead{font-size:21px;font-weight:500;line-height:1.65}
.article-body .article-scope{font-size:12px;line-height:1.7;color:var(--muted);margin:16px 0 26px}
.article-body h3{font-size:25px;line-height:1.4;font-weight:600;margin:34px 0 18px}
.article-body ul{list-style:disc;padding-left:24px;margin-top:16px}
.article-body li+li{margin-top:10px}
.article-body a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.article-table{overflow-x:auto;max-width:100%;margin-top:20px;overscroll-behavior-inline:contain}
.article-table table{border-collapse:collapse;min-width:520px;width:100%;font-size:14px;line-height:1.65}
.article-table th,.article-table td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.article-table th{background:var(--soft);font-weight:600}
.article-body pre{max-width:100%;overflow-x:auto;overscroll-behavior-inline:contain;background:var(--soft);padding:22px;border-radius:14px;font-size:13px;line-height:1.8;margin-top:20px}
.article-body code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
.article-body .article-sources{margin-top:38px;padding-top:8px;border-top:1px solid var(--line)}
.article-sources li{font-size:14px;line-height:1.8}
/* Display rules must never override the hidden state of filters or article entries. */
.article-index-card[hidden],.article-entry[hidden],.article-corpus[hidden],.article-filter-empty[hidden]{display:none!important}
html:not(.js) .article-corpus{margin-top:48px}
@media(max-width:1000px) and (min-width:834px){.taxonomy-mega{gap:26px}.mega-peer a{font-size:18px}}
@media(max-width:833px){.article-index{grid-template-columns:1fr;gap:18px}.article-index-card{padding:26px;min-height:230px}.article-index-card h3{font-size:24px}.article-type-filter{margin-top:-8px;gap:4px}.article-type-filter button{padding-inline:12px}.article-body{padding-bottom:36px}.article-body .article-lead{font-size:19px}.article-body p,.article-body li{font-size:16px;line-height:1.85}.article-body h3{font-size:23px}.article-corpus{margin-top:48px}.reading-guide-grid{grid-template-columns:1fr;gap:26px}.reading-guide{padding-bottom:64px}.reading-guide h2{font-size:28px}.section-intro{font-size:16px}.mobile-back{max-width:calc(100% - 70px);min-width:0}.mobile-back span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mobile-back .icon{flex-shrink:0}.mobile-dialog .mobile-subgroup.secondary .mobile-category-button{font-size:17px;line-height:26px;min-height:44px}.mobile-dialog .mobile-subgroup.secondary .mobile-category-button .icon{width:14px;height:14px}}
@media(prefers-reduced-motion:reduce){.mega-body>.mega-peer :is(.menu-caption,li),.mobile-dialog[data-menu-direction=back] [data-mobile-sub]:not([hidden]){animation:none!important}}

/* Servo concept image: preserve the complete device silhouettes. */
.drive-feature.servo>[data-photo="servo"]{object-fit:contain;aspect-ratio:3/2;background:transparent;border-radius:0}

/* Homepage fit: center bounded copy and avoid forced desktop heading breaks. */
.technical-hero{min-height:clamp(600px,calc(100svh - var(--header)),780px);padding:clamp(48px,6vw,72px) 24px 300px}
.technical-hero .hero-copy h1{font-size:clamp(48px,5.5vw,80px);line-height:1.2;margin-top:0;letter-spacing:-.025em}
.technical-hero .hero-copy h1 span{display:inline}
.technical-hero .hero-description,.technical-hero .hero-context{margin-inline:auto;max-width:740px;text-align:center;text-wrap:balance}
.technical-hero .hero-actions{flex-wrap:wrap;justify-content:center}
.drive-pair{width:100%;max-width:1680px;margin-inline:auto;grid-template-columns:repeat(2,minmax(0,1fr))}
.drive-feature{min-width:0}
.drive-feature.inverter>[data-photo="inverter"]{background:transparent;border-radius:0;object-fit:contain}
.footer-base{justify-content:center;text-align:center}
@media(min-width:834px){.reading-path .path-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:600px){
 .technical-hero{min-height:660px;padding:44px 20px 260px}
 .technical-hero .hero-copy h1{font-size:clamp(38px,8.8vw,52px);line-height:1.2}
 .technical-hero .hero-copy h1 span{display:block}
 .technical-hero .hero-description{font-size:17px;line-height:1.65;margin-top:20px}
 .technical-hero .hero-context{font-size:14px;line-height:1.65}
 .drive-pair{grid-template-columns:minmax(0,1fr)}
}

/* Shared approved logo; the home link keeps its desktop/mobile touch target. */
.global-header .brand{flex:0 0 44px;min-width:44px;min-height:44px;padding:0;letter-spacing:0}
.global-header .brand-mark{display:block;width:32px;height:32px;flex-shrink:0;background:transparent;border-radius:0;pointer-events:none}

/* Six peer sections and comfortable long-form knowledge reading. */
@media(min-width:834px){.technical-footer{grid-template-columns:repeat(6,minmax(0,1fr))}.global-links{gap:clamp(12px,2.5vw,34px)}}
.reflections-empty{min-height:42vh;padding-top:32px;padding-bottom:88px;color:var(--muted);font-size:17px;line-height:1.8}
.knowledge-content{margin-top:26px;min-width:0;overflow-wrap:anywhere}
.knowledge-entry{padding-block:24px;border-top:1px solid var(--line);scroll-margin-top:92px}
.knowledge-entry h4{font-size:22px;line-height:1.5;margin-bottom:18px;color:var(--ink)}
.knowledge-entry p,.knowledge-entry li{font-size:16px;line-height:1.85;text-align:left}
.knowledge-entry p+p{margin-top:14px}.knowledge-entry h5{font-size:16px;line-height:1.6;margin:22px 0 10px}
.knowledge-entry ul{list-style:disc;padding-left:22px}.knowledge-entry li+li{margin-top:8px}
.knowledge-entry pre{max-width:100%;overflow-x:auto;overscroll-behavior-inline:contain;padding:18px;background:var(--soft);border-radius:12px;font-size:13px;line-height:1.8;white-space:pre;margin-top:18px}
.knowledge-entry a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.knowledge-entry .knowledge-sources{font-size:13px;line-height:1.8;color:var(--muted);margin-top:22px}
.knowledge-sources a{display:inline-block;min-height:44px;padding-block:10px;max-width:100%;overflow-wrap:anywhere}
@media(max-width:833px){.knowledge-entry h4{font-size:20px}.knowledge-entry p,.knowledge-entry li{font-size:16px}.reflections-empty{padding-bottom:60px}}

/* Approved domain entries and a single-line hero on every device. */
@media(min-width:834px){.global-links{gap:clamp(10px,1.4vw,18px)}.technical-footer{grid-template-columns:repeat(4,minmax(0,1fr))}.domain-mega{grid-template-columns:minmax(0,1fr)}}
@media(min-width:1200px){.technical-footer{grid-template-columns:repeat(8,minmax(0,1fr))}}
.technical-hero .hero-copy h1{font-size:clamp(40px,8.4vw,116px);line-height:1.12;letter-spacing:-.025em;white-space:nowrap;text-wrap:nowrap}
@media(max-width:600px){.technical-hero .hero-copy h1{font-size:clamp(34px,9.9vw,58px);line-height:1.2}}

/* Seven footer categories. */
@media(min-width:1200px){.technical-footer{grid-template-columns:repeat(7,minmax(0,1fr))}}





/* One concise subtitle below the homepage title on every device. */
.technical-hero .hero-copy{width:min(var(--width),100%)}
.technical-hero .hero-subtitle{color:#d2d2d7;font-size:clamp(12px,3.6vw,20px);font-weight:400;line-height:1.6;letter-spacing:0;white-space:nowrap;text-wrap:nowrap;margin:16px 0 0}
@media(max-width:600px){.technical-hero .hero-subtitle{margin-top:14px}}

/* Lower the homepage title, subtitle and actions together into the photo's clear area. */
.technical-hero .hero-copy{margin-top:clamp(48px,5vw,80px)}
@media(max-width:600px){.technical-hero .hero-copy{margin-top:52px}}
@media(max-height:500px) and (orientation:landscape){.technical-hero .hero-copy{margin-top:28px}}

/* Dark editorial photography, shared across desktop, tablet and phone. */
.series-art{background:#101214}
.series-art img[data-photo]{display:block;object-position:50% 50%}
.drive-pair .drive-feature{background:#101214;color:#f5f5f7}
.drive-pair .drive-feature .eyebrow,.drive-pair .drive-feature>p:not(.eyebrow){color:#b8bfcb}
.drive-pair .drive-feature>.link-blue{color:#2997ff}