:root{color-scheme:dark;--bg:#101214;--surface:#191c20;--ink:#f0f1ee;--muted:#a5abb1;--accent:#c6f36c;--border:#30343a}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.6}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}header{height:96px;padding:0 5.5%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);gap:24px}.brand{display:flex;align-items:center;gap:16px;font-weight:600;line-height:1.3}.brand small{display:block;font-size:12px;letter-spacing:2px;color:var(--muted);margin-top:5px}.mark{font-size:27px;letter-spacing:-3px;border:1px solid #51585f;padding:9px 12px}.mark span{color:var(--accent);font-size:20px;letter-spacing:0}nav{display:flex;gap:36px;font-size:14px}nav a:hover,.text-link:hover{color:var(--accent)}#language{background:none;border:1px solid var(--border);color:var(--ink);padding:8px 12px;font-size:14px}#language span{color:var(--muted)}main{max-width:1600px;margin:auto}section{padding:85px 5.5%;border-bottom:1px solid var(--border)}.hero{padding-top:56px;padding-bottom:24px}.eyebrow{font-size:12px;font-weight:600;letter-spacing:2px;display:flex;gap:10px;align-items:center;color:var(--muted)}.line{height:1px;width:34px;background:var(--accent)}.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:70px;align-items:center;padding:24px 0 68px}h1{font-size:clamp(50px,6.3vw,94px);line-height:1.03;letter-spacing:-5px;font-weight:500;margin:23px 0 30px}h1 em{font-style:normal;color:var(--accent)}.intro{color:var(--muted);max-width:475px;font-size:18px;line-height:1.7;margin-bottom:32px}.button{background:var(--accent);color:#182010;padding:15px 23px;display:inline-block;font-weight:600;font-size:14px}.button:hover{background:#d9ff98}.text-link{display:inline-block;margin:12px 0 12px 22px;font-size:14px;border-bottom:1px solid #727a7d}.architecture{border:1px solid #3f454c;background:linear-gradient(145deg,#1c2225,#131618);padding:24px;position:relative}.diagram-top,.diagram-bottom{display:flex;justify-content:space-between;gap:15px;color:var(--muted);font-size:12px;letter-spacing:1px}.layers{padding:35px 10px}.layer{display:grid;grid-template-columns:35px 1fr;border:1px solid #3c454b;padding:23px 18px;background:#22282b}.layer>span{grid-row:span 2;color:var(--muted);font-size:12px}.layer strong{font-size:18px;font-weight:500}.layer small{font-size:13px;color:var(--muted);margin-top:5px}.l1{border-color:#a3c362;background:#293323}.l1 strong{color:var(--accent)}.l2{margin:0 14px}.l3{margin:0 28px}.connector{height:20px;width:1px;background:#73824e;margin:auto}.diagram-bottom{font-size:10px;letter-spacing:.5px;padding-top:18px;border-top:1px solid var(--border)}.hero-foot{display:flex;justify-content:space-between;padding-top:23px;border-top:1px solid var(--border);font-size:11px;letter-spacing:1.5px;color:var(--muted)}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:42px}h2{font-size:clamp(35px,4vw,57px);font-weight:500;line-height:1.12;letter-spacing:-2px;margin:22px 0 0}.section-heading>p{max-width:370px;color:var(--muted);margin:0}.principles{display:grid;grid-template-columns:repeat(3,1fr)}.principles article{border-top:1px solid #737970;padding:25px 30px 0 0}.principles article+article{padding-left:30px;border-left:1px solid var(--border)}.num{color:var(--accent);font-size:13px}h3{font-size:22px;font-weight:500;line-height:1.35;margin:22px 0 12px}.principles 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.2s}.card:hover{transform:translateY(-4px);border-color:#8da25d}.card-meta{font-size:12px;color:var(--accent);display:flex;justify-content:space-between;width:100%;gap:12px}.card-meta span+span{color:var(--muted)}.card h3{margin-top:27px}.card p{font-size:15px;color:var(--muted);margin:0 0 25px}.card button{margin-top:auto;padding:0 0 3px;background:none;color:var(--ink);border:0;border-bottom:1px solid #757d76;font-size:14px}.resource-note{font-size:13px;color:var(--muted);max-width:780px;margin-top:26px}.about{display:grid;grid-template-columns:1fr 1.2fr;gap:80px}.about h2{font-size:64px}.accent{color:var(--accent)}.about p{color:var(--muted)}.about .large{color:var(--ink);font-size:28px;line-height:1.4;margin-top:0;letter-spacing:-.5px}.tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}.tags span{border:1px solid var(--border);padding:7px 12px;font-size:13px;color:var(--muted)}footer{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:35px 5.5%;color:var(--muted);font-size:12px}footer .brand{font-size:26px;color:var(--ink)}dialog{background:#191d20;color:var(--ink);border:1px solid #59634d;width:min(760px,92vw);max-height:88vh;padding:45px;overflow-y:auto}dialog::backdrop{background:#000b;backdrop-filter:blur(5px)}#close{position:absolute;right:14px;top:10px;color:var(--ink);background:none;border:none;font-size:30px}dialog h2{font-size:36px;letter-spacing:-1px;margin-bottom:22px}dialog h3{font-size:20px;color:var(--accent)}dialog p,dialog li{color:#c2c6c7}dialog a{color:var(--accent);text-decoration:underline}dialog ul{padding-left:20px}:focus-visible{outline:2px solid var(--accent);outline-offset:5px}@media(max-width:950px){.hero-grid{gap:30px}h1{letter-spacing:-3px}.architecture{padding:17px}.layer{padding:17px 12px}.layer strong{font-size:16px}.diagram-bottom{flex-direction:column}.toolbar{align-items:start;flex-direction:column}.cards{grid-template-columns:repeat(2,1fr)}.about{gap:35px}nav{gap:18px}}@media(max-width:650px){header{height:auto;min-height:86px;padding:18px 6%;flex-wrap:wrap;gap:15px}header .brand{font-size:14px}.brand small{font-size:10px}.mark{font-size:23px}nav{order:3;width:100%;justify-content:space-between}section{padding:55px 6%}.hero{padding-top:35px}.hero-grid{grid-template-columns:1fr;padding-bottom:38px;gap:30px}h1{font-size:58px}.intro{font-size:17px}.architecture{max-width:500px;width:100%}.hero-foot{gap:20px;flex-direction:column;font-size:10px}.section-heading{display:block}.section-heading>p{margin-top:24px}.principles,.cards,.about{grid-template-columns:1fr}.principles article+article{padding:24px 0 0;border-left:0;margin-top:30px}.card{min-height:255px}.about{gap:30px}.about h2{font-size:52px}.about .large{font-size:25px}footer{flex-wrap:wrap}footer>span{width:100%}dialog{padding:35px 25px}.text-link{margin-left:15px}.eyebrow{font-size:10px;letter-spacing:1.4px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.card{transition:none}}
.card[hidden]{display:none}.card .read-link{margin-top:auto;font-size:14px;border-bottom:1px solid #757d76;padding-bottom:3px}.card h3 a:hover,.read-link:hover{color:var(--accent)}#language{display:inline-block;white-space:nowrap}.article-page{border-bottom:1px solid var(--border);padding:45px 6% 65px}.article-wrap{max-width:810px;margin:auto}.breadcrumb{display:flex;justify-content:flex-start;flex-wrap:wrap;gap:13px;font-size:13px;color:var(--muted);margin-bottom:45px}.breadcrumb a:hover{color:var(--accent)}.article-page h1{font-size:clamp(38px,5vw,64px);line-height:1.12;letter-spacing:-2.5px;margin:22px 0}.article-deck{font-size:22px;line-height:1.5;color:var(--muted);max-width:750px}.byline{font-size:13px;color:var(--muted);padding:20px 0 30px;border-bottom:1px solid var(--border);display:flex;gap:10px;flex-wrap:wrap}.article-body{padding-top:25px;font-size:18px;line-height:1.85}.article-body .lead{font-size:21px;color:var(--ink)}.article-body p{color:#bcc2c5}.article-body h2{font-size:28px;line-height:1.3;letter-spacing:-.6px;margin:42px 0 14px}.takeaways{border:1px solid #51623b;background:#1c2517;padding:24px 30px;margin-top:35px}.takeaways h2{margin:0;font-size:23px;color:var(--accent)}.takeaways ul{padding-left:23px;margin-bottom:0}.reference,.back-link{color:var(--accent);border-bottom:1px solid #758e4e}.article-body .editor-note{font-size:14px;color:var(--muted);margin:30px 0}.back-link{display:inline-block;margin-top:30px;font-size:15px}.related .cards{grid-template-columns:repeat(2,1fr);margin-top:24px}@media(max-width:650px){.article-page h1{letter-spacing:-1.5px;font-size:40px}.article-deck{font-size:19px}.article-body{font-size:17px}.article-body .lead{font-size:19px}.article-body h2{font-size:25px}.takeaways{padding:22px}.related .cards{grid-template-columns:1fr}.breadcrumb{font-size:13px}.byline{font-size:13px}}
.specialty-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 45px}.specialty-grid article{border-top:1px solid #737970;padding:22px 0}.specialty-grid p{color:var(--muted);max-width:520px;margin-bottom:0}.approach-example{border-left:2px solid var(--accent);padding:4px 0 4px 24px;max-width:900px;margin-top:40px}.approach-example h3{margin-top:0;font-size:20px}.approach-example p{color:var(--muted);margin-bottom:0}.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:start}.case-card{border:1px solid var(--border);background:var(--surface);padding:27px;min-width:0}.case-metric{font-size:48px;line-height:1.15;letter-spacing:-1.8px;color:var(--accent);margin-top:30px}.metric-caption{font-size:13px;color:var(--muted);min-height:44px;line-height:1.5;margin:12px 0 25px}.case-card h3{font-size:22px;min-height:60px}.case-summary{font-size:15px;color:var(--muted);margin-bottom:25px;min-height:96px}.case-card details{border-top:1px solid var(--border);padding-top:16px}.case-card summary{cursor:pointer;font-size:14px;line-height:1.5}.case-card summary:hover{color:var(--accent)}.case-card summary::marker{color:var(--accent)}.case-detail h4{font-size:15px;color:var(--accent);margin:25px 0 8px;font-weight:500}.case-detail p{font-size:15px;color:#bfc5c7;margin-top:0}.profile-about .about{padding:0;border:0}.profile-about .large{color:var(--ink);font-size:27px;line-height:1.5;letter-spacing:-.5px}.career{border-top:1px solid var(--border);margin-top:45px;padding-top:10px}.career-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.career h4{font-size:18px;font-weight:500;margin:15px 0 10px}.career p{color:var(--muted);font-size:15px;margin-top:0}.sector-experience{border-top:1px solid var(--border);padding-top:12px;margin-top:24px}.technology-table table{border-collapse:collapse;width:100%;font-size:15px;table-layout:fixed}.technology-table thead{background:var(--surface)}.technology-table th,.technology-table td{padding:19px 16px;border-bottom:1px solid var(--border);text-align:center}.technology-table th{font-weight:500}.technology-table th:first-child{text-align:left;width:30%}.technology-table tbody th{font-size:17px}.covered{font-size:23px;color:var(--accent)}.not-listed{color:#737b81}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:950px){.case-grid{grid-template-columns:1fr}.case-card{padding:30px}.case-metric{margin-top:18px}.metric-caption,.case-summary,.case-card h3{min-height:0}.case-summary{max-width:760px}.case-detail{max-width:800px}.career-grid{gap:20px}}@media(max-width:650px){.specialty-grid,.career-grid{grid-template-columns:1fr;gap:15px}.case-card{padding:24px}.case-metric{font-size:44px}.profile-about .large{font-size:24px}.technology-table th,.technology-table td{padding:14px 5px;font-size:13px;overflow-wrap:anywhere}.technology-table tbody th{font-size:14px}.technology-table th:first-child{width:29%}.approach-example{padding-left:18px}.career-grid article+article{border-top:1px solid var(--border);padding-top:8px}.section-heading{overflow-wrap:break-word}}
#contact-form{max-width:900px}.contact-fields{display:grid;grid-template-columns:1fr 1fr;gap:25px}.contact-fields label{display:flex;flex-direction:column;gap:10px;font-size:15px}.contact-fields input,.contact-fields textarea{width:100%;border:1px solid #4b535a;background:var(--surface);color:var(--ink);padding:13px 15px;font:inherit;border-radius:0}.contact-fields textarea{resize:vertical;min-height:180px}.message-field{grid-column:1/-1}.contact-privacy{font-size:14px;color:var(--muted);margin:22px 0}.contact-actions{display:flex;gap:25px;align-items:center;margin-top:22px}.contact-actions .button{border:0;min-width:160px}.contact-actions .button:disabled{background:#3e4734;color:#b7c1aa;cursor:not-allowed}.contact-actions p{font-size:14px;max-width:570px;color:var(--muted)}.form-trap{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}@media(max-width:650px){.contact-fields{grid-template-columns:1fr}.contact-actions{align-items:start;flex-direction:column;gap:10px}}

/* Article topics and accessible access design diagram. */
.article-tags{display:flex;flex-wrap:wrap;gap:.5rem;list-style:none;padding:0;margin:0 0 2rem}
.article-tags li{font-size:.875rem;padding:.3rem .65rem;border:1px solid #425062;border-radius:4px;color:#ced6df}
.access-diagram{margin:2.5rem 0;padding:1.5rem;border:1px solid #425062;border-radius:8px;background:#101820}
.access-diagram ol{list-style:none;padding:0;margin:0;display:grid;gap:1.6rem}
.access-diagram li{position:relative;text-align:center;padding:1rem .75rem;border:1px solid #53697d;border-radius:4px;color:#eef3f6;font-size:1rem;line-height:1.5;background:#17232f}
.access-diagram li:not(:last-child)::after{content:"↓";position:absolute;left:0;right:0;bottom:-1.55rem;font-size:1.3rem;color:#91cbbb}
.access-diagram .diagram-return{font-size:1rem;margin:1.5rem 0 1rem;border-left:3px solid #91cbbb;padding-left:1rem}
.access-diagram figcaption{font-size:.875rem;line-height:1.6;color:#b5c1cd}
.article-references li{margin-bottom:.75rem}

/* Diagrams keep native HTML text and reflow instead of shrinking an image. */
.article-visual{margin:2.5rem 0;padding:1.5rem;max-width:100%;min-width:0;background:var(--surface);border:1px solid #52613d;border-radius:6px;overflow-wrap:anywhere}
.article-visual .visual-title{font-size:1.25rem;line-height:1.45;font-weight:500;color:var(--ink);margin:0 0 1.5rem;letter-spacing:0}
.article-visual .visual-nodes{list-style:none;padding:0;margin:0;display:grid;gap:1rem;min-width:0}
.article-visual .visual-node{position:relative;display:flex;flex-direction:column;gap:.5rem;min-width:0;padding:1rem;border:1px solid #535b62;background:var(--bg);border-radius:4px}
.article-visual .visual-node strong{font-size:1rem;line-height:1.5;font-weight:600;color:var(--accent)}
.article-visual .visual-description{font-size:1rem;line-height:1.6;color:#d0d5d8}
.article-visual .visual-step{font-size:.875rem;line-height:1.5;color:var(--muted)}
.article-visual.visual-flow .visual-nodes{gap:2rem}
.article-visual.visual-flow .visual-node:not(:last-child)::after{content:"↓";position:absolute;bottom:-1.9rem;left:0;right:0;text-align:center;line-height:1.9rem;color:var(--accent);font-size:1.25rem}
.article-visual.visual-decision .visual-nodes{grid-template-columns:repeat(2,minmax(0,1fr))}
.article-visual.visual-parallel .visual-nodes{grid-template-columns:repeat(3,minmax(0,1fr))}
.article-visual .visual-outcome{border-top:1px solid #52613d;margin-top:1.5rem;padding-top:1.25rem;color:var(--accent);font-size:1rem;line-height:1.6}
.article-visual .visual-note{border-left:2px solid var(--accent);padding-left:1rem;margin:1.5rem 0 0;font-size:1rem;line-height:1.6;color:#d0d5d8}
.article-visual figcaption{font-size:.875rem;line-height:1.6;color:var(--muted);margin-top:1.5rem}
@media(max-width:650px){.article-visual{padding:1rem;margin:2rem 0}.article-visual.visual-decision .visual-nodes,.article-visual.visual-parallel .visual-nodes{grid-template-columns:minmax(0,1fr)}.article-visual .visual-title{font-size:1.125rem}.article-visual .visual-node{padding:.875rem}}

.cookie-link{text-decoration:underline;text-underline-offset:4px;font-size:.875rem}.contact-security{font-size:.875rem;color:var(--muted);line-height:1.7;max-width:850px}.security-button{background:var(--surface);border:1px solid #60666a;color:var(--ink);padding:.75rem 1rem;font-size:1rem;margin:0 0 1rem;max-width:100%;white-space:normal}.security-button:disabled{opacity:.6}.article-body code{overflow-wrap:anywhere}.article-body ul{padding-left:1.5rem}

.cookie-notice[hidden]{display:none}.cookie-notice{position:fixed;right:1.25rem;bottom:1.25rem;z-index:50;width:min(34rem,calc(100% - 2.5rem));max-height:calc(100dvh - 2.5rem);overflow:auto;display:flex;align-items:flex-start;gap:1.25rem;padding:1.25rem;border:1px solid #60666a;background:var(--surface);color:var(--ink);box-shadow:0 8px 32px #0008;font-size:1rem;line-height:1.6}.cookie-notice strong{font-size:1rem}.cookie-notice p{margin:.5rem 0;color:#bcc2c5}.cookie-notice a{text-decoration:underline;text-underline-offset:3px;color:var(--accent)}.cookie-notice button{flex-shrink:0;border:1px solid var(--accent);background:transparent;color:var(--accent);padding:.6rem .8rem;font-size:1rem}.cookie-notice button:hover{background:#293323}@media(max-width:650px){.cookie-notice{right:.75rem;bottom:.75rem;width:calc(100% - 1.5rem);max-height:calc(100dvh - 1.5rem);flex-direction:column;gap:.75rem;padding:1rem}.cookie-notice button{align-self:flex-end}}