/* Refinement of the graphite / copper system. */
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.site-header.scrolled{box-shadow:0 12px 30px #0003}
.header-inner{height:88px}
.primary-nav{gap:30px}
.primary-nav>a{position:relative;min-height:44px;display:flex;align-items:center}
.primary-nav>a[aria-current=page]::after{content:'';position:absolute;inset-inline:0;bottom:3px;height:2px;background:var(--accent)}
.header-cta{background:transparent;border-color:#77715f;transition:background .2s,color .2s;padding:11px 20px}
.header-cta:hover{background:var(--accent);color:var(--bg)}
.reading-progress{position:absolute;bottom:-1px;inset-inline:0;height:2px;pointer-events:none}
.reading-progress>span{display:block;background:var(--accent);height:100%;transform:scaleX(0);transform-origin:left}
[dir=rtl] .reading-progress>span{transform-origin:right}
.solutions-menu{font-size:14px;color:var(--muted)}
.solutions-menu>summary{list-style:none;display:flex;align-items:center;gap:13px;min-height:44px}
.solutions-menu>summary::after{content:'+';color:var(--accent);font-size:20px;line-height:1}
.solutions-menu[open]>summary{color:var(--fg)}
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summary::-webkit-details-marker{display:none}
.mega-menu{position:absolute;top:88px;inset-inline:5.5%;background:#19201b;border:1px solid #465142;padding:25px 28px;box-shadow:0 25px 55px #0008;max-height:calc(100dvh - 108px);overflow:auto}
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.mega-heading .eyebrow{margin:0}
.mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:3px 30px}
.mega-grid>a{display:flex;gap:18px;align-items:start;padding:17px 12px;transition:background .2s;color:var(--fg);min-width:0}
.mega-grid>a:hover,.mega-grid>a[aria-current=page]{background:#293829}
.mega-index{font-size:12px;color:var(--accent);line-height:26px}
.mega-grid strong{font:500 19px/1.4 var(--display);display:block;margin-bottom:6px}
.mega-grid small{font-size:13px;line-height:1.6;display:block;color:var(--muted);max-width:490px}
.mega-footer{margin-top:16px;padding-top:18px;border-top:1px solid var(--line);display:flex;justify-content:space-between}
.mega-footer>a{font-size:14px;color:var(--accent);padding:7px 12px}
.language>summary{min-height:44px;min-width:60px}
.language-list{top:49px;box-shadow:0 20px 40px #0007}
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.menu-toggle[aria-expanded=true] .menu-icon i:first-child{transform:translateY(3.5px) rotate(45deg)}
.menu-toggle[aria-expanded=true] .menu-icon i:last-child{transform:translateY(-3.5px) rotate(-45deg)}
.hero{padding-top:55px;padding-bottom:25px}
.hero-meta{margin-bottom:39px}
.hero h1{font-size:clamp(60px,6.5vw,106px);max-width:790px}
.hero-topic{font-size:14px;letter-spacing:.12em;margin-bottom:22px}
.hero-copy{max-width:525px;margin-bottom:30px}
.hero-actions{gap:24px}
.button{min-height:50px;letter-spacing:.01em}
.signal-board{padding:26px;background:linear-gradient(140deg,#242c26,#151c18);border:1px solid #495044;position:relative;box-shadow:0 30px 65px #0003}
.signal-board::before{content:'';position:absolute;inset-inline-start:-1px;top:-1px;height:2px;width:75px;background:var(--accent)}
.board-title{font-size:11px;letter-spacing:.06em;align-items:center}
.board-title span:last-child{padding:5px 7px;border:1px solid #424b3f;font-size:10px;letter-spacing:.025em}
.board-center{padding:24px 0 12px}
.core-symbol{width:51px;height:51px;background:#303928;border-color:#a38963}
.board-center strong{font-size:19px}
.board-center p{line-height:1.65;margin-top:7px}
.board-center p span:last-child{color:var(--accent)}
.flow-diagram{height:67px}
.account-tile{background:#242e25;border:1px solid #42513a;border-top:2px solid #ac9977;min-width:0;padding:17px 11px}
.account-tile b{font-variant-numeric:tabular-nums;font-size:36px;margin:14px 0 10px}
.account-tile small{display:block;font-size:12px;white-space:nowrap}
.board-note{max-width:100%;line-height:1.65;margin:22px 0 17px}
.board-edit{font-size:12px;color:var(--accent);border-bottom:1px solid #77664e;display:inline-block;padding:5px 0;min-height:33px}
.signal-board[data-invalid-result] .pulse{animation-play-state:paused;opacity:.2}
.chapter-strip{margin-top:46px;padding:22px 0 10px;border-top-color:#47503f}
.chapter-nav{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:0}
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.chapter-nav>a:first-child{padding-inline-start:0;border:0}
.chapter-nav>a:hover{color:var(--accent);background:#1b211c}
.chapter-nav>a>span{color:var(--accent);font-size:11px}
.section{padding-block:90px}
.paper-section{background:#e2e7db}
.allocation-lab{grid-template-columns:1fr 1.25fr;gap:45px;background:#f0f2e8;padding:14px;border:1px solid #b8c4af}
.lab-controls{background:#27392a;color:#edf2e6;padding:30px}
.lab-controls>.eyebrow{color:#d8ac83;margin-bottom:22px}
.volume-field{color:#c9d6c0;gap:8px}
.volume-field input{font:500 42px/1.25 var(--display);font-variant-numeric:tabular-nums;color:#f0f3e8;padding:6px 0 12px;background:transparent;border-bottom-color:#7a8b6d;min-width:0}
.volume-field input:focus-visible{outline-color:var(--accent)}
.volume-field input[aria-invalid=true]{border-bottom-color:#edb48d}
.volume-presets{display:flex;gap:9px;margin-top:14px;margin-bottom:27px}
.volume-presets button{min-height:40px;border:1px solid #687958;color:#d2ddc9;background:transparent;flex:1;padding:7px 10px;font-size:14px;font-variant-numeric:tabular-nums}
.volume-presets button[aria-pressed=true]{border-color:#d8ac83;background:#d8ac83;color:#172016}
.volume-presets button:hover{border-color:#d8ac83}
.mode-choice{border:0;margin:0;padding:0;min-width:0}
.mode-choice legend{color:#c9d6c0;font-size:14px;margin-bottom:10px;padding:0}
.mode-options{display:grid;grid-template-columns:1fr 1fr;border:1px solid #748361}
.mode-option{position:relative;cursor:pointer;display:flex;min-height:49px}
.mode-option input{opacity:0;position:absolute;width:1px;height:1px}
.mode-option span{display:grid;place-content:center;flex:1;padding:10px 9px;font-size:13px;text-align:center;color:#d3ddca;line-height:1.4}
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.mode-option input:focus-visible+span{outline:2px solid var(--accent);outline-offset:5px;z-index:2}
.weight-fields{margin-top:26px;gap:12px}
.weight-field{min-width:0}
.weight-field label{font-size:12px;color:#c9d6c0;display:block;margin-bottom:10px}
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.weight-control input{min-width:0;width:100%;font-size:22px;color:#f0f3e8;border:0;background:transparent;padding:10px 0;text-align:center;border-radius:0;appearance:textfield;font-variant-numeric:tabular-nums}
.weight-control input::-webkit-inner-spin-button,.weight-control input::-webkit-outer-spin-button{appearance:none;margin:0}
.weight-control button{flex-shrink:0;width:26px;height:44px;padding:0;border:0;background:transparent;font-size:18px;color:#d8ac83}
.weight-control button:disabled{opacity:.3;cursor:default}
.weight-control input[aria-invalid=true]{background:#513629}
.weight-fields.equal-mode{opacity:.48}
.weight-help{color:#c1ceba;font-size:13px;line-height:1.6;margin:17px 0 14px;min-height:62px}
.lab-reset{font-size:13px;padding:9px 0;min-height:42px;background:none;border:0;border-bottom:1px solid #738469;color:#d8ac83}
.lab-error{color:#ffd0aa;font-size:14px;margin-top:18px}
.lab-results{padding:24px 24px 18px;min-width:0}
.results-heading{display:flex;justify-content:space-between;gap:18px;padding-bottom:12px;font-size:11px;color:#54664b;letter-spacing:.04em;text-transform:uppercase}
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.lab-table td{padding-block:23px}
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.account-id{display:inline-grid;place-content:center;width:29px;height:29px;border:1px solid #91a081;color:#4a653d;font-size:11px;margin-inline-end:9px}
.lab-table td:last-child{font-size:35px;font-variant-numeric:tabular-nums}
.lab-summary{margin-top:24px;background:#d8e1cb;padding:19px 20px}
.lab-summary strong{font:500 33px/1.3 var(--display);margin-top:7px;font-variant-numeric:tabular-nums}
.rounding-note{font-size:13px;line-height:1.6;color:#526648;min-height:42px;margin-top:17px}
.rounding-note.has-warning{color:#72451f;background:#eee0c7;padding:10px 12px;border-inline-start:2px solid #9d7645}
.lab-disclaimer{padding-top:17px;border-top:1px solid #b4c1a9;font-size:13px;line-height:1.7;margin-top:15px}
.architecture{position:relative;padding-block:36px;grid-template-columns:70px 1.05fr 1.05fr;transition:background .25s}
.architecture:hover{background:#1c241c}
.layer-number{font-size:30px}
.layer-tags{display:none}
.layer-link{min-height:37px;padding-top:8px}
.principle h3{font-size:26px}
.principle .n{display:inline-block;padding:5px 9px;border:1px solid #5c5946}
.guide-card{padding:0;min-height:280px;border-color:#485041;background:#1c241e}
.guide-main-link{display:flex;flex-direction:column;height:100%;padding:35px}
.guide-main-link>p:not(.eyebrow){flex:1}
.guide-main-link .text-link{align-self:flex-start;min-height:37px}
.guide-card:hover{background:#293628;border-color:#9a8a6e}
.guide-main-link:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
.faq summary{padding-block:24px;font-size:18px}
.faq details[open]{background:#1c241d;padding-inline:18px;border-top-color:#a3906f}
.faq details[open] summary{color:var(--accent)}
.faq p{line-height:1.8}
.contact-options>a{min-height:72px}
.contact-options>a span{max-width:57%;text-align:end}
.contact-band .eyebrow{color:#d8ac83}
.footer-links>a{min-height:31px}
.detail-hero{padding-top:33px;padding-bottom:66px}
.detail-grid{grid-template-columns:1.22fr .78fr;gap:7%;align-items:center}
.detail-hero h1{font-size:clamp(46px,5vw,80px);line-height:1.18}
.solution-snapshot{display:block;padding:27px;background:linear-gradient(145deg,#303b2f,#1a251e);border-color:#6d755c;position:relative;min-width:0}
.solution-snapshot .eyebrow{margin-bottom:22px;line-height:1.6}
.snapshot-title{display:flex;justify-content:space-between;align-items:center;padding-bottom:20px;border-bottom:1px solid #52614a}
.snapshot-title>span:first-child{font:500 39px/1.2 var(--display);color:#d7ddcc;letter-spacing:-.04em}
.snapshot-code{font-size:12px;color:var(--accent);border:1px solid #73765c;padding:5px 8px}
.snapshot-row{display:grid;grid-template-columns:1fr 1.2fr;gap:15px;align-items:center;padding:19px 0;border-bottom:1px solid #46563f}
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.snapshot-row>span{font-size:14px;line-height:1.6;color:#c5ceba}
.snapshot-mam-mt5 .snapshot-row>b,.snapshot-multi-account-mt5 .snapshot-row:first-of-type>b{font-size:37px}
.toc{top:122px;gap:0;padding:20px 0;border-top:1px solid var(--line)}
.toc a{padding:13px 0 13px 17px;border-inline-start:1px solid #495140;line-height:1.6}
.toc a[aria-current=location]{color:var(--accent);border-inline-start:2px solid var(--accent);background:#1a211b}
.article-content{max-width:880px}
.article-part{scroll-margin-top:125px}
.article-part p{max-width:760px;line-height:1.9;margin-block:18px}
.article-part ul{background:#1c251d;padding:24px 28px 24px 48px;border-inline-start:2px solid #978360}
.article-part li{line-height:1.8}
.implementation{background:#1d291f;padding:28px;border:1px solid #4c5c42;margin-top:25px}
.implementation ol{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:23px 35px}
.implementation li{display:flex;gap:13px}
.implementation li>span{color:var(--accent);font-size:12px;padding-top:3px}
.implementation li>p{color:#c3ceba;font-size:14px;line-height:1.6;margin:0}
[dir=rtl] .toc a{padding-inline-start:17px;padding-inline-end:0}
[dir=rtl] .article-part ul{padding-inline:48px 28px}
[dir=rtl] .hero h1{font-size:clamp(48px,5.6vw,84px)}
[dir=rtl] .snapshot-row>b{letter-spacing:0}
@media(min-width:1700px){.hero h1{font-size:112px}.signal-board{padding:32px}.hero-grid{gap:7%}}
@media(max-width:1150px){.header-inner{gap:25px}.primary-nav{gap:24px}.hero h1{font-size:clamp(58px,6.6vw,86px)}.signal-board{padding:21px}.account-tile b{font-size:30px}.board-title span:last-child{font-size:9px}.allocation-lab{gap:10px}.lab-controls{padding:25px}.lab-results{padding:22px 18px}.account-id{display:none}.weight-control button{width:23px}.detail-grid{gap:5%}.snapshot-row{grid-template-columns:1fr 1fr}.snapshot-row>b{font-size:23px}.chapter-nav>a{font-size:11px}}
@media(max-width:860px){
 .header-inner{height:80px;gap:15px}.site-header{background:#111414}.menu-toggle{display:flex;padding-inline:8px 0}.primary-nav{position:fixed;top:80px;bottom:0;inset-inline:0;padding:15px 6% 30px;background:#172019;overflow:auto;overscroll-behavior:contain;max-height:calc(100dvh - 80px)}.primary-nav.open{display:block}.primary-nav>a{display:none}.solutions-menu>summary{display:none}.solutions-menu{display:block}.mega-menu{position:static;inset:auto;box-shadow:none;background:transparent;border:0;padding:0;max-height:none;overflow:visible}.mega-heading{padding-block:10px 20px;font-size:17px}.mega-grid{gap:0}.mega-grid>a{gap:11px;padding:17px 8px;border-bottom:1px solid #40513a;min-height:93px}.mega-grid strong{font-size:18px}.mega-grid small{font-size:13px;line-height:1.55}.mega-index{font-size:11px}.mega-footer{margin-top:18px;padding:0;gap:16px}.mega-footer>a{padding:12px 8px;font-size:15px}.menu-open{overflow:hidden}.language-list{top:43px}.hero{padding-top:33px}.hero-grid{gap:42px}.hero h1{font-size:clamp(62px,10vw,88px)}.signal-board{max-width:100%;padding:25px}.board-title span:last-child{font-size:10px}.account-tile b{font-size:39px}.board-center{padding-top:24px}.board-center strong{font-size:22px}.board-note{max-width:570px}.chapter-nav{grid-template-columns:1fr 1fr;padding-top:15px;padding-bottom:25px;gap:6px 20px}.chapter-nav>a{font-size:12px;padding-inline:0;border:0}.section{padding-block:67px}.allocation-lab{grid-template-columns:1fr;gap:0;padding:10px}.lab-controls{padding:27px}.lab-results{padding:28px 18px 16px}.weight-fields{max-width:520px;gap:20px}.weight-help{min-height:0;max-width:560px}.weight-control button{width:40px}.weight-control input{font-size:25px}.lab-controls .volume-field input{font-size:44px}.volume-presets{max-width:400px}.mode-options{max-width:600px}.mode-option span{font-size:14px}.lab-table td:last-child{font-size:37px}.share-bar{width:110px}.account-id{display:inline-grid}.results-heading{font-size:12px}.lab-summary strong{font-size:34px}.architecture{grid-template-columns:45px 1fr;gap:18px}.layer-detail{grid-column:2}.guide-main-link{padding:29px}.detail-grid{grid-template-columns:1fr;gap:30px}.solution-snapshot{display:block;padding:24px}.snapshot-row{grid-template-columns:1fr 1.5fr;padding-block:16px}.snapshot-row>b{font-size:27px}.detail-hero h1{font-size:clamp(42px,6.8vw,65px)}.toc{display:flex;gap:0;padding:0;border-top:0;position:static;margin-bottom:10px;scrollbar-width:thin;overflow:auto}.toc a{border-inline-start:0;border-bottom:1px solid #4e5e43;padding:13px 18px;font-size:13px}.toc a[aria-current=location]{border-inline-start:0;border-bottom:2px solid var(--accent)}.article-content{width:100%;min-width:0}.article-layout{gap:27px}.implementation{padding:24px}.contact-options>a span{max-width:63%}
}
@media(max-width:540px){
 .header-inner{gap:10px}.brand{gap:9px}.brand-type{font-size:10px;letter-spacing:.07em}.brand-type span{font-size:10px}.brand-mark{gap:3px;grid-template-columns:repeat(3,3px)}.language{font-size:12px}.language>summary{padding-inline:6px;min-width:53px;gap:7px}.menu-toggle{font-size:12px;gap:9px}.menu-icon{width:16px}.hero h1{font-size:clamp(50px,12vw,64px)}.hero-topic{font-size:12px;margin-bottom:18px}.hero .eyebrow{font-size:10px;letter-spacing:.075em}.hero-meta{margin-bottom:26px}.hero-copy{font-size:17px;line-height:1.7}.hero-actions{gap:18px}.button{min-height:49px;padding:13px 18px}.signal-board{padding:20px 16px}.board-center strong{font-size:18px}.board-center p{font-size:12px}.core-symbol{width:45px;height:45px;flex-shrink:0}.board-title{font-size:10px;gap:10px}.board-title span:last-child{font-size:9px;padding:4px 5px}.account-tiles{gap:7px}.account-tile{padding:14px 8px}.account-tile b{font-size:29px;letter-spacing:-.04em;margin-block:12px 7px}.account-tile .acct{font-size:11px}.account-tile small{font-size:10px}.chapter-strip{margin-top:35px;align-items:start;gap:18px}.chapter-strip>span{max-width:42%;text-align:end}.chapter-nav{gap:0 12px;padding-block:11px 22px}.chapter-nav>a{font-size:10px;letter-spacing:.04em;gap:7px;min-height:51px}.chapter-nav>a>span{font-size:10px}.section-heading>p{font-size:16px}.allocation-lab{padding:7px}.lab-controls{padding:24px 19px}.lab-results{padding:26px 10px 12px}.weight-fields{gap:10px}.weight-control button{width:28px;height:45px}.weight-control input{font-size:23px}.volume-presets{gap:8px}.volume-presets button{min-height:44px}.mode-option span{font-size:13px;padding:12px 6px}.weight-help{font-size:13px}.lab-table{font-size:13px}.lab-table th{font-size:11px}.lab-table td{padding-block:21px}.lab-table td:last-child{font-size:29px}.account-id{display:none}.share-bar{width:36px}.share-cell{gap:8px}.results-heading{font-size:10px;gap:15px}.lab-summary{gap:15px;padding:16px 15px}.lab-summary>div{font-size:11px;max-width:46%}.lab-summary strong{font-size:30px}.rounding-note{font-size:12px}.lab-disclaimer{font-size:12px}.mega-grid{grid-template-columns:1fr}.mega-grid>a{padding:17px 8px;min-height:0}.mega-grid strong{font-size:19px}.mega-grid small{font-size:13px;max-width:100%}.mega-heading .eyebrow{font-size:10px}.mega-heading{font-size:15px;gap:15px}.mega-footer>a{font-size:14px}.guide-main-link{padding:27px}.guide-card{min-height:0}.guide-card h3{font-size:27px}.guide-main-link>p:not(.eyebrow){font-size:16px}.faq summary{font-size:16px;padding-block:22px}.faq details[open]{padding-inline:13px}.faq p{font-size:15px;line-height:1.8}.contact-options>a{min-height:70px;font-size:17px}.contact-options>a span{font-size:11px;max-width:64%}.snapshot-title>span:first-child{font-size:35px}.snapshot-row>b{font-size:24px}.snapshot-row>span{font-size:13px}.detail-hero h1{font-size:42px;line-height:1.2}.detail-hero{padding-bottom:45px}.detail-intro{font-size:17px}.breadcrumbs{margin-bottom:29px}.detail-hero .eyebrow{font-size:11px}.article-part p{font-size:16px;line-height:1.85}.article-part h2{font-size:30px;line-height:1.25}.article-part ul{font-size:15px;padding:22px 20px 22px 38px}.implementation ol{grid-template-columns:1fr;gap:19px}.footer-links{font-size:13px;gap:9px}.footer-about p{font-size:14px}.footer-top{gap:35px 22px}[dir=rtl] .hero h1{font-size:46px}[dir=rtl] .article-part ul{padding-inline:38px 20px}
}
@media(prefers-reduced-motion:reduce){.reading-progress>span{transition:none}}
.chapter-nav>a{font-size:14px;letter-spacing:.02em}.mode-option span{font-size:14px}.weight-field label{font-size:14px}.results-heading{flex-wrap:wrap}.toc a{font-size:14px}.footer-links>a{font-size:14px}.snapshot-row>span{font-size:14px}
@media(max-width:540px){.menu-toggle,.language{font-size:14px}.chapter-nav>a{font-size:12px;min-height:59px;letter-spacing:.015em}.weight-fields{grid-template-columns:1fr;gap:11px}.weight-field{display:grid;grid-template-columns:1fr 150px;align-items:center;gap:12px}.weight-field label{margin:0;font-size:14px}.weight-control button{width:44px;min-height:44px}.weight-control input{font-size:23px}.mode-option span{font-size:14px}.toc a{font-size:14px}.footer-links{font-size:14px}.snapshot-row>span{font-size:14px}}

/* Compact wayfinding and complete, clickable solution rows. */
.mega-menu{padding:22px 26px}
.mega-grid>a{padding:16px 12px}
.mega-grid strong{font-size:18px;margin-bottom:4px}
.mega-grid small{font-size:14px;line-height:1.55}
.mega-footer{flex-wrap:wrap;gap:6px 18px}
.mega-footer>a{min-height:44px;display:flex;align-items:center}
.architecture{display:block;padding:0}
.architecture-link{display:grid;grid-template-columns:55px 1.05fr 1.15fr 25px;align-items:center;gap:24px;padding:29px 20px 29px 0;min-width:0;transition:background .2s}
.architecture-link>div{min-width:0}
.architecture h3{font-size:26px;margin-bottom:6px;overflow-wrap:anywhere}
.architecture p{max-width:470px;font-size:16px;line-height:1.7}
.layer-number{font-size:22px;color:#908875}
.architecture .layer-link{font-size:14px;display:inline-block;min-height:0;padding:3px 0;margin-top:6px}
.layer-plus{font-size:25px;color:var(--accent);text-align:end}
.architecture:hover .layer-number{color:var(--accent)}
.architecture-link:focus-visible{outline-offset:4px;background:#233025}
.solution-rail{display:flex;align-items:center;gap:20px;border-top:1px solid #485043;border-bottom:1px solid #485043;padding-block:12px}
.rail-label{font-size:12px;line-height:1.5;color:var(--muted);max-width:135px;flex-shrink:0}
.rail-links{display:flex;flex-wrap:wrap;gap:6px;min-width:0}
.rail-links>a{display:flex;align-items:center;min-height:44px;padding:9px 12px;font-size:14px;line-height:1.4;border:1px solid transparent;color:#cbd1c7;transition:background .2s,color .2s}
.rail-links>a:hover{background:#253026;color:var(--fg)}
.rail-links>a[aria-current=page]{color:var(--accent);border-color:#857353;background:#262b20}
.article-navigation{position:sticky;top:120px;align-self:start;min-width:0}
.toc-disclosure>summary{display:none}
.toc{position:static;max-height:calc(100dvh - 150px);overflow:auto;scrollbar-width:thin}
.toc a{white-space:normal;min-height:44px}
.breadcrumbs{font-size:14px}
.breadcrumbs a{min-height:32px;display:inline-flex;align-items:center}
.board-edit{min-height:44px;font-size:14px;padding:10px 0}
.contact-options>a span{font-size:14px;line-height:1.5;overflow-wrap:anywhere}
.comparison th[scope=row]{color:var(--accent);background:#20281f}
.error-hero{padding-block:70px 55px}
.error-hero h1{max-width:900px}
.error-hero .button{margin-top:10px}
.error-hero+.solution-rail{margin-bottom:65px}
.no-script{background:#d5dfc5;color:#21311f;padding:14px 18px;border-inline-start:2px solid #526648}

@media(max-width:1150px){
 .solution-rail{display:block}.rail-label{display:block;max-width:none;margin-bottom:8px}
 .architecture-link{grid-template-columns:40px 1.1fr 1fr 20px;gap:20px}
}
@media(max-width:860px){
 html{scroll-padding-top:155px}.article-part{scroll-margin-top:155px}
 .mega-menu{padding:0}.mega-grid>a{padding:18px 8px;min-height:0}
 .mega-grid strong{font-size:20px}.mega-grid small{font-size:14px}
 .mega-footer{justify-content:flex-start;gap:6px 20px}.mega-footer>a{padding-inline:8px}
 .architecture-link{grid-template-columns:35px 1fr 24px;gap:14px;padding:25px 12px 25px 0}
 .architecture .layer-detail{grid-column:2;grid-row:2}
 .layer-plus{grid-column:3;grid-row:1 / 3;align-self:center}
 .architecture h3{font-size:26px}.architecture .layer-link{margin-top:2px}
 .rail-links{flex-wrap:nowrap;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:thin;padding-bottom:6px}
 .rail-links>a{white-space:nowrap;flex-shrink:0;border-color:#3c4839}
 .article-navigation{top:82px;z-index:25;margin-bottom:0}
 .toc-disclosure{background:#19221b;border:1px solid #536049;box-shadow:0 10px 28px #0003;position:relative}
 .toc-disclosure>summary{display:grid;grid-template-columns:1fr 20px;gap:3px 12px;list-style:none;padding:12px 16px;min-height:64px}
 .toc-disclosure>summary>span{font-size:12px;color:#b5bea9}
 .toc-disclosure>summary>b{grid-column:1;font-size:14px;line-height:1.5;font-weight:500;color:var(--accent);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 .toc-disclosure>summary::after{content:'+';grid-column:2;grid-row:1 / 3;align-self:center;color:var(--accent);font-size:23px;text-align:end}
 .toc-disclosure[open]>summary::after{content:'−'}
 .toc{display:grid;position:absolute;inset-inline:-1px;top:100%;max-height:45dvh;overflow:auto;background:#19221b;border:1px solid #536049;padding:6px 12px;margin:0;box-shadow:0 16px 28px #0005;gap:0}
 .toc strong{display:none}.toc a{font-size:14px;padding:14px 10px;white-space:normal;border-inline-start:0}
 .toc a[aria-current=location]{border-inline-start:0;background:#293627}
 .article-layout{gap:24px}.contact-options>a span{max-width:65%}
}
@media(max-width:540px){
 .mega-grid strong{font-size:19px}.mega-heading .eyebrow{font-size:12px;letter-spacing:.04em}
 .board-title{font-size:12px;letter-spacing:0;flex-wrap:wrap}.board-title span:last-child{font-size:12px}
 .account-tile small{font-size:12px;white-space:normal}.account-tile .acct{font-size:12px}
 .board-center p{font-size:14px}.chapter-nav>a{font-size:14px;letter-spacing:0;text-transform:none}
 .hero-topic,.hero .eyebrow{font-size:12px}.hero-edition{font-size:12px}
 .architecture-link{padding-block:24px}.layer-number{font-size:18px}.architecture h3{font-size:24px}
 .architecture p{font-size:16px}.rail-links>a{padding-inline:12px}.rail-label{font-size:14px}
 .results-heading,.lab-table th,.lab-summary>div,.rounding-note,.lab-disclaimer{font-size:14px}
 .lab-table td:first-child{white-space:normal}.lab-summary>div{line-height:1.5}
 .weight-help{font-size:14px}.lab-reset{font-size:14px}
 .faq p,.article-part ul{font-size:16px}.guide-main-link{padding:24px}
 .contact-options>a{align-items:start;gap:14px}.contact-options>a span{font-size:14px;max-width:64%}
 .detail-hero h1{font-size:clamp(34px,10vw,42px)}.error-hero{padding-block:50px 38px}
 [dir=rtl] .toc a{padding-inline:10px}
}
@media(prefers-reduced-motion:reduce){.architecture-link,.rail-links>a{transition:none}}