/* Component layout; shared tokens and theme supply the approved visual design. */
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-height) + 22px)}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.65 var(--sans);-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6,p,figure{margin:0}h1,h2{font-family:var(--serif);font-weight:400;letter-spacing:-.035em;line-height:1.04}button,a,summary{-webkit-tap-highlight-color:transparent;touch-action:manipulation}button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}a{color:inherit;text-underline-offset:4px}button,a,summary{transition:background .15s,color .15s,border-color .15s}button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--rust);outline-offset:5px}::selection{background:var(--surface-2)}.wrap{max-width:1280px;padding-inline:54px;margin-inline:auto}.header{position:sticky;top:0;z-index:30;min-height:var(--nav-height);display:flex;align-items:center;gap:35px;padding:18px 36px;background:var(--surface-2);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}.brand{display:flex;align-items:center;gap:13px;text-decoration:none;white-space:nowrap;font-size:12px;font-weight:650;letter-spacing:.02em}.brand em{font:italic 15px var(--serif)}.brand small{display:block;font:11px var(--mono);letter-spacing:.12em;color:var(--muted);margin-top:4px}.brand-mark{display:grid;grid-template-columns:9px 9px;gap:3px;transform:rotate(-5deg)}.brand-mark i{width:9px;height:9px;background:var(--surface-2)}.brand-mark i:nth-child(2){background:var(--rust)}.brand-mark i:nth-child(3){background:var(--green)}.header nav{display:flex;gap:25px;margin-left:auto;font-size:12px}.header nav a,.guide-link{text-decoration:none;white-space:nowrap}.header nav a:hover,.guide-link:hover{color:var(--rust)}.guide-link{font-size:11px;border-left:1px solid var(--line);padding-left:27px}.skip{position:fixed;top:-100px;left:20px;z-index:99;padding:12px;background:var(--surface-2);color:var(--white)}.skip:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.eyebrow,.chapter,.figure-label{font:11px/1.5 var(--mono);letter-spacing:.08em}.eyebrow{display:flex;align-items:center;gap:9px}.eyebrow>span:empty{width:6px;height:6px;background:var(--rust)}.hero{display:grid;grid-template-columns:1.18fr 1fr;gap:82px;align-items:center;padding-block:55px 60px;min-height:660px}.hero h1{font-size:84px;line-height:1.01;margin:24px 0}.hero h1 em{color:var(--rust)}.hero-deck{font-size:22px;line-height:1.4;letter-spacing:-.02em}.hero-sub{color:var(--muted);font-size:14px;max-width:510px;margin-top:18px}.hero-actions{display:flex;align-items:flex-start;gap:19px;flex-direction:column;margin-top:27px}.button{display:inline-flex;align-items:center;gap:30px;justify-content:space-between;text-decoration:none;padding:14px 19px;font-size:12px;font-weight:550}.primary{background:var(--surface-2);color:var(--white)}.primary:hover{background:var(--green)}.text-link{font-size:11px;color:var(--muted)}.hero-figure{background:var(--green-pale);border:1px solid var(--line);padding:26px 28px;box-shadow:none}.figure-label{display:flex;justify-content:space-between;gap:14px;font-size:11px;color:var(--green);padding-bottom:16px;border-bottom:1px solid var(--line)}.figure-title{font:32px/1.14 var(--serif);letter-spacing:-.025em;margin:20px 0 24px}.hero-route>div{display:flex;align-items:center;gap:13px;padding:13px;background:var(--surface-1);border:1px solid var(--line)}.route-dot{border:1px solid var(--line);width:24px;height:24px;display:grid;place-items:center;font:11px var(--mono);flex-shrink:0}.hero-route p{font-size:13px;font-weight:550;line-height:1.5}.hero-route small{display:block;font-size:11px;color:var(--muted);font-weight:400;margin-top:3px}.hero-route b{margin-left:auto;font:11px var(--mono);white-space:nowrap;color:var(--green)}.hero-route>i{display:block;line-height:1.4;text-align:center;font-style:normal;color:var(--text-muted)}.hero-route .route-effect{background:var(--rust-pale);border-color:var(--line)}.route-effect .route-dot{background:var(--rust);color:var(--text);border:0}.hero-figure figcaption{font-size:13px;line-height:1.6;margin-top:22px}.hero-figure figcaption strong{font-weight:600}.figure-link{font-size:11px;border-top:1px solid var(--line);margin-top:18px;padding:14px 0 0;width:100%;display:flex;justify-content:space-between;color:var(--green)}.figure-link:hover{color:var(--rust)}.thesis{background:var(--surface-2);border-block:1px solid var(--line)}.thesis>.wrap{display:grid;grid-template-columns:210px 1fr;gap:30px;align-items:center;padding-block:23px}.thesis .eyebrow{font-size:11px;color:var(--muted)}.thesis p{font-size:14px;max-width:880px}.thesis strong{font-weight:650}.section{padding-block:78px}.section-heading{display:grid;grid-template-columns:225px 1fr;gap:30px;margin-bottom:35px}.chapter{padding-top:9px;color:var(--muted);font-size:11px}.section-heading h2{font-size:50px}.section-heading>div>p{max-width:700px;color:var(--muted);font-size:14px;line-height:1.75;margin-top:20px}.case-overview{border-top:1px solid var(--line)}.overview-row{display:grid;grid-template-columns:42px 210px 1fr 30px;gap:25px;align-items:center;text-align:left;width:100%;padding:23px 0;border-bottom:1px solid var(--line)}.overview-row:hover{background:var(--surface-2)}.case-number{font:11px var(--mono);color:var(--green)}.overview-name b{font-weight:500;font-size:21px;letter-spacing:-.02em;display:block}.overview-name small{display:block;font-size:11px;color:var(--muted);margin-top:4px}.overview-lesson strong{font-size:14px;font-weight:500;display:block;line-height:1.6}.overview-lesson small{display:block;font-size:12px;color:var(--muted);margin-top:5px}.overview-arrow{font-size:24px;color:var(--green)}.scope-note{font-size:11px;color:var(--muted);margin-top:20px;max-width:850px}.explorer{background:var(--surface-2);border-block:1px solid var(--line)}.case-tabs{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));border:1px solid var(--line);border-bottom:0;background:var(--surface-2)}.case-tabs button{text-align:left;padding:16px 14px;font-size:12px;border-right:1px solid var(--line);line-height:1.4}.case-tabs button:last-child{border-right:0}.case-tabs button>span{display:block;font:11px var(--mono);color:var(--muted);margin-bottom:7px}.case-tabs button[aria-pressed=true]{background:var(--surface-2);color:var(--white)}.case-tabs button[aria-pressed=true]>span{color:var(--text-muted)}.case-tabs button:hover:not([aria-pressed=true]){background:var(--surface-2)}.case-study{background:var(--white);border:1px solid var(--line);padding:35px}.case-heading{display:grid;grid-template-columns:1.2fr .8fr;gap:55px;padding-bottom:30px;border-bottom:1px solid var(--line)}.case-heading .eyebrow{font-size:11px;color:var(--muted);line-height:1.8}.case-heading h3{font:48px/1.1 var(--serif);letter-spacing:-.03em;margin:17px 0}.case-heading h3:focus{outline:none}.case-heading>div>p:last-child{font-size:13px;color:var(--muted);line-height:1.7}.case-heading strong{color:var(--ink);font-weight:550}.case-lesson{border-left:1px solid var(--line);padding-left:29px;align-self:center}.case-heading .case-lesson>p:last-child{font:24px/1.35 var(--serif);letter-spacing:-.015em;color:var(--green);margin-top:13px}.evolution-label{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:29px}.evolution-label h4,.incident-heading h4{font-size:13px;font-weight:550}.evolution-label>span{font:11px/1.5 var(--mono);color:var(--muted)}.evolution{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;list-style:none;margin:22px 0 32px;padding:0}.evolution li{border-top:1px solid var(--line);padding-top:18px;position:relative}.evolution li:before{content:'';position:absolute;top:-4px;left:0;width:7px;height:7px;background:var(--green);border:1px solid var(--white)}.evolution-number{font:11px var(--mono);color:var(--green);margin-right:10px}.evolution-type{font:11px/1.5 var(--mono);text-transform:uppercase;letter-spacing:.03em;color:var(--muted)}.evolution h5{font-size:14px;font-weight:500;line-height:1.45;margin:12px 0 9px}.evolution p{font-size:12px;color:var(--muted);line-height:1.75}.incident-heading{display:flex;justify-content:space-between;align-items:baseline;gap:15px;padding-top:24px;border-top:1px solid var(--line)}.incident-heading p{font:11px var(--mono);color:var(--muted)}.incident-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:15px 0 30px}.incident-tabs button{font-size:11px;border:1px solid var(--line);padding:10px 14px;background:var(--surface-1);text-align:left}.incident-tabs button[aria-pressed=true]{background:var(--rust-pale);border-color:var(--line);color:var(--text-muted)}.incident-tabs button:hover:not([aria-pressed=true]){border-color:var(--green)}.incident-intro{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;margin-bottom:29px}.incident-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font:11px/1.5 var(--mono);color:var(--muted)}.status-tag{background:var(--rust-pale);color:var(--text-muted);padding:5px 8px;display:inline-block;font-size:11px}.status-tag.good{background:var(--surface-2);color:var(--green)}.incident-intro h4{font:30px/1.17 var(--serif);letter-spacing:-.02em;margin-top:17px}.incident-intro>div>p{font-size:13px;line-height:1.75;color:var(--muted)}.incident-intro .outcome{border-left:2px solid var(--line);padding-left:14px;margin-top:14px;font-size:12px}.outcome strong{font-weight:550;color:var(--ink)}.source-links{display:flex;gap:10px 17px;flex-wrap:wrap;margin-top:15px}.source-links a{font-size:11px;color:var(--green)}.trace-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px}.trace-toolbar>.eyebrow{font-size:11px;color:var(--muted)}.view-toggle{display:flex;border:1px solid var(--line)}.view-toggle button{font-size:11px;padding:10px 14px}.view-toggle button[aria-pressed=true]{background:var(--surface-2);color:var(--white)}.flow-panel{margin-top:12px;padding:22px 25px;border:1px solid var(--line);background:var(--surface-2)}.flow-panel.design,.flow-panel.held{background:var(--surface-2);border-color:var(--line)}.flow-caption{display:flex;justify-content:space-between;gap:20px;color:var(--text-muted);font:11px/1.5 var(--mono);letter-spacing:.04em}.design .flow-caption,.held .flow-caption{color:var(--green)}.flow-steps{list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:27px;margin:21px 0;padding:0}.flow-steps li{position:relative;display:flex;gap:12px;align-items:center;min-height:68px;background:var(--surface-1);border:1px solid var(--line);padding:13px}.design .flow-steps li,.held .flow-steps li{border-color:var(--line);background:var(--surface-1)}.flow-steps li>span{font:11px var(--mono);color:var(--rust)}.design .flow-steps li>span,.held .flow-steps li>span{color:var(--green)}.flow-steps strong{font-size:12px;line-height:1.5;font-weight:500}.flow-steps i{position:absolute;right:-22px;font-style:normal;color:var(--text-muted)}.flow-explanation{display:grid;grid-template-columns:185px 1fr;gap:20px;border-top:1px solid var(--line);padding-top:18px}.design .flow-explanation,.held .flow-explanation{border-color:var(--line)}.flow-explanation h5{font-size:12px;font-weight:550;line-height:1.6}.flow-explanation p,.flow-limit{font-size:12px;line-height:1.75;color:var(--text-muted)}.design .flow-explanation p,.design .flow-limit,.held .flow-explanation p,.held .flow-limit{color:var(--text-muted)}.flow-limit{margin-top:15px}.flow-limit strong{font-weight:550;color:var(--ink)}.responsibility-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:27px 0 14px}.responsibility-heading h5{font-size:13px;font-weight:550}.responsibility-heading>span{display:flex;align-items:center;gap:7px;font-size:11px;color:var(--muted)}.key{height:7px;width:7px;display:inline-block;margin-left:10px}.primary-key{background:var(--rust)}.support-key{border:1px solid var(--green)}.responsibility-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.responsibility-grid button{text-align:left;padding:13px 14px;border:1px solid var(--line);min-height:108px;background:var(--surface-1);position:relative}.responsibility-grid button>span{font:11px var(--mono);color:var(--muted)}.responsibility-grid b{font-size:13px;font-weight:500;line-height:1.4;display:block;margin:8px 0}.responsibility-grid small{display:block;font:11px/1.4 var(--mono);letter-spacing:.04em;color:var(--text-muted)}.responsibility-grid .lead{background:var(--rust-pale);border-color:var(--line)}.responsibility-grid .lead>span,.responsibility-grid .lead small{color:var(--text-muted)}.responsibility-grid .support{background:var(--surface-2);border-color:var(--line)}.responsibility-grid .support>span,.responsibility-grid .support small{color:var(--green)}.responsibility-grid button[aria-pressed=true]:after{content:'';position:absolute;inset:-1px;border:2px solid var(--ink);pointer-events:none}.responsibility-grid button:hover{border-color:var(--ink)}.piece-explanation{display:grid;grid-template-columns:36px 1fr;gap:16px;padding:21px;background:var(--surface-2);border:1px solid var(--line);margin-top:12px}.piece-number{font:14px var(--mono);color:var(--green);padding-top:4px}.piece-explanation h6{font-size:15px;font-weight:550}.piece-explanation p{font-size:12px;color:var(--muted);margin-top:7px;line-height:1.75}.piece-explanation a{display:inline-block;color:var(--green);font-size:11px;margin-top:10px}.verification{margin-top:21px;border-block:1px solid var(--line)}summary{cursor:pointer;list-style:none}summary::-webkit-details-marker{display:none}.verification>summary{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:12px;padding:18px 0}.verification summary>span:last-child,.mechanisms summary>span:last-child,.source-catalogue summary>i{display:grid;place-items:center;flex-shrink:0;width:22px;height:22px;font-size:22px;line-height:1;font-style:normal;font-weight:400}details[open]>summary>span:last-child,details[open]>summary>i{transform:rotate(45deg)}.verification>div{padding:0 0 23px}.verification>div>.eyebrow{font-size:11px;color:var(--green);margin-bottom:10px}.verification>div>p:not(.eyebrow):not(.small){font-size:13px;color:var(--muted)}.small{font-size:11px;color:var(--muted);line-height:1.7}.verification .small{font-size:11px;margin-top:12px}.case-end{display:flex;align-items:center;justify-content:space-between;gap:35px;margin-top:25px}.case-end>p{font-size:11px;color:var(--muted);max-width:700px}.case-end>p strong{color:var(--ink);font-weight:550}.case-end>button{display:flex;align-items:center;justify-content:space-between;gap:25px;font-size:11px;white-space:nowrap;padding:12px 14px;border:1px solid var(--line)}.case-end>button:hover{background:var(--green-pale)}.table-hint{font-size:11px;color:var(--muted);margin-bottom:14px;max-width:850px}.matrix-scroll{overflow-x:auto;border:1px solid var(--line);max-width:100%}.matrix-scroll table{width:100%;min-width:1000px;border-collapse:collapse;table-layout:fixed}.matrix-scroll th,.matrix-scroll td{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:13px 7px;text-align:center}.matrix-scroll th:last-child,.matrix-scroll td:last-child{border-right:0}.matrix-scroll tbody tr:last-child th,.matrix-scroll tbody tr:last-child td{border-bottom:0}.matrix-scroll thead th{font-size:11px;font-weight:500;line-height:1.5;background:var(--surface-2);vertical-align:top}.matrix-scroll thead th>span{display:block;font:11px var(--mono);color:var(--green);margin-bottom:9px}.matrix-scroll th:first-child{width:185px;text-align:left;padding-left:17px}.matrix-scroll thead th:first-child{font:11px var(--mono);vertical-align:middle}.matrix-scroll tbody th{font-size:12px;font-weight:500;line-height:1.5;background:var(--surface-1)}.matrix-scroll tbody th>span{font:11px var(--mono);color:var(--green);margin-right:12px}.matrix-mark{height:34px;width:40px;font-size:18px;display:inline-grid;place-items:center;color:var(--green)}.matrix-mark.lead{color:var(--rust)}.matrix-mark:hover{background:var(--surface-2)}.matrix-empty{font-size:14px;color:var(--text-muted)}.map-reading{display:grid;grid-template-columns:32px 1fr;gap:17px;margin-top:24px;max-width:980px}.map-reading>span{font-size:29px;color:var(--green)}.map-reading p{font-size:13px;color:var(--muted)}.map-reading strong{font-weight:550;color:var(--ink)}.controls{background:var(--surface-2);border-block:1px solid var(--line)}.repair-types{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:35px}.repair-types article{border-top:2px solid var(--green);padding-top:20px}.repair-types article:nth-child(2){border-color:var(--rust)}.repair-types article:nth-child(3){border-color:var(--ink)}.repair-index{font:11px var(--mono);color:var(--muted)}.repair-types h3{font:34px/1.13 var(--serif);letter-spacing:-.025em;margin:20px 0 17px}.repair-types p{font-size:13px;line-height:1.75;color:var(--muted)}.repair-example{border-top:1px solid var(--line);padding-top:15px;margin-top:21px;font-size:12px;line-height:1.7}.repair-types small{display:block;font:11px/1.6 var(--mono);color:var(--green);margin-top:17px}.mechanisms{border-block:1px solid var(--line);margin-top:35px}.mechanisms>summary{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:13px;padding:21px 0}.mechanism-list{display:grid;grid-template-columns:1fr 1fr;gap:28px 35px;padding-block:12px 22px}.mechanism-list article{display:grid;grid-template-columns:54px 1fr;gap:15px}.mechanism-list article>span{font:11px var(--mono);padding-top:7px;color:var(--green)}.mechanism-list h4{font-size:17px;font-weight:500;margin-bottom:9px}.mechanism-list p{font-size:12px;color:var(--muted)}.mechanism-list a{font-size:11px;color:var(--green);display:inline-block;margin-top:12px}.mechanism-note{font-size:11px;color:var(--muted);max-width:850px;padding-bottom:23px}.evidence-principles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:35px}.evidence-principles h3{font-size:18px;line-height:1.35;font-weight:500;margin-bottom:12px}.evidence-principles p{font-size:13px;color:var(--muted);line-height:1.75}.correction-note{border-left:3px solid var(--rust);background:var(--surface-2);padding:22px 25px;font-size:12px;line-height:1.85;margin-top:29px}.correction-note strong{font-weight:550}.source-catalogue{margin:30px 0 22px;border-top:1px solid var(--line)}.source-catalogue details{border-bottom:1px solid var(--line);scroll-margin-top:20px}.source-catalogue summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:17px 0}.source-catalogue summary small{display:block;font:11px var(--mono);color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px}.source-catalogue summary b{font-size:14px;font-weight:500}.source-catalogue details>div{padding-bottom:22px;max-width:850px}.source-catalogue code{font:11px/1.8 var(--mono);color:var(--green);overflow-wrap:anywhere}.source-catalogue details>div>p{font-size:12px;color:var(--muted);margin-top:12px}.closing{padding-block:65px;background:var(--surface-2);color:var(--text)}.closing .eyebrow{font-size:11px;color:var(--text-muted)}.closing h2{font-size:57px;margin-top:24px}.closing p:not(.eyebrow){font-size:16px;color:var(--text-muted);margin-top:23px}.light{border:1px solid var(--line);margin-top:25px}.light:hover{background:var(--surface-2)}footer{display:flex;justify-content:space-between;gap:20px;padding-block:25px;font:11px var(--mono);color:var(--muted)}footer a{font:11px var(--sans)}
@media(min-width:1450px){.hero{padding-block:70px}.hero h1{font-size:88px}}
@media(max-width:1100px){.wrap{padding-inline:34px}.header{gap:25px;padding-inline:27px}.header nav{gap:18px;font-size:11px}.guide-link{display:none}.hero{gap:45px;min-height:610px}.hero h1{font-size:70px}.hero-deck{font-size:20px}.hero-figure{padding:22px}.figure-label{font-size:11px}.section-heading{grid-template-columns:175px 1fr;gap:27px}.section-heading h2{font-size:46px}.overview-row{grid-template-columns:30px 175px 1fr 25px;gap:20px}.overview-name b{font-size:19px}.case-study{padding:27px}.case-heading{gap:35px}.case-tabs button{font-size:11px;padding:14px 11px}.case-heading h3{font-size:43px}.evolution{gap:22px}.incident-intro{gap:28px}.flow-panel{padding:20px}.flow-steps{gap:22px}.flow-steps i{right:-19px}.flow-steps strong{font-size:11px}.flow-explanation{grid-template-columns:150px 1fr}.responsibility-grid button{padding:12px}.responsibility-grid b{font-size:12px}.repair-types{gap:28px}.repair-types h3{font-size:31px}}
@media(max-width:800px){.header{display:block;padding:15px 27px 0}.brand{font-size:11px}.brand small{display:inline-block;margin:0 0 0 14px;font-size:11px}.header nav{justify-content:space-between;gap:15px;margin:12px 0 0;font-size:11px}.header nav a{padding:5px 0 13px}.hero{gap:30px;padding-block:39px;min-height:0}.hero h1{font-size:54px;margin:20px 0}.hero .eyebrow{font-size:11px}.hero-deck{font-size:17px}.desktop-br{display:none}.hero-sub{font-size:12px}.hero-actions{gap:14px;margin-top:21px}.hero-actions .button{font-size:11px;padding:12px 14px;gap:20px}.hero-actions .text-link{font-size:11px}.hero-figure{padding:17px;box-shadow:none}.figure-label{font-size:11px;letter-spacing:0;gap:9px}.figure-title{font-size:27px}.hero-route>div{padding:10px;gap:9px}.hero-route p{font-size:11px}.hero-route small{font-size:11px}.hero-route b{font-size:11px}.route-dot{width:20px;height:20px;font-size:11px}.hero-figure figcaption{font-size:11px}.figure-link{font-size:11px}.thesis>.wrap{grid-template-columns:140px 1fr;gap:25px}.thesis p{font-size:12px}.section{padding-block:55px}.section-heading{grid-template-columns:1fr;gap:15px;margin-bottom:28px}.chapter{padding-top:0;font-size:11px}.section-heading h2{font-size:44px}.section-heading>div>p{font-size:13px;margin-top:16px}.overview-row{grid-template-columns:26px 145px 1fr 20px;gap:15px;padding-block:20px}.overview-name b{font-size:18px}.overview-name small{font-size:11px}.overview-lesson strong{font-size:12px}.overview-lesson small{font-size:11px}.overview-arrow{font-size:21px}.scope-note{font-size:11px}.case-tabs{grid-template-columns:repeat(3,minmax(0,1fr))}.case-tabs button{border-bottom:1px solid var(--line)}.case-tabs button:nth-child(3){border-right:0}.case-study{padding:23px}.case-heading{grid-template-columns:1.1fr 1fr;gap:26px}.case-heading .eyebrow{font-size:11px}.case-heading h3{font-size:37px;margin-block:14px}.case-heading>div>p:last-child{font-size:12px}.case-lesson{padding-left:21px}.case-heading .case-lesson>p:last-child{font-size:20px}.evolution-label>span{font-size:11px}.evolution-label h4{font-size:12px}.evolution{gap:19px;margin-top:20px}.evolution h5{font-size:12px}.evolution p{font-size:11px}.evolution-type{font-size:11px}.incident-heading h4{font-size:12px}.incident-heading p{font-size:11px}.incident-intro{grid-template-columns:1fr;gap:18px}.incident-intro h4{font-size:29px;max-width:530px;margin-top:13px}.incident-intro>div>p{font-size:13px}.incident-tabs{margin-bottom:24px;gap:7px}.incident-tabs button{font-size:11px;padding:9px 11px}.incident-tags{font-size:11px}.status-tag{font-size:11px}.trace-toolbar>.eyebrow{font-size:11px}.view-toggle button{font-size:11px;padding:9px 12px}.flow-panel{padding:18px}.flow-caption{font-size:11px}.flow-steps li{display:block;padding:11px}.flow-steps strong{display:block;margin-top:5px;font-size:11px}.flow-steps i{top:34%}.flow-explanation{display:block}.flow-explanation h5{margin-bottom:8px;font-size:11px}.flow-explanation p,.flow-limit{font-size:11px}.responsibility-heading h5{font-size:12px}.responsibility-heading>span{font-size:11px;gap:5px}.key{margin-left:6px}.responsibility-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.responsibility-grid b{font-size:13px}.responsibility-grid button{min-height:101px}.responsibility-grid small{font-size:11px}.case-end{display:block}.case-end>button{margin-top:18px}.case-end>p{font-size:11px}.repair-types{gap:23px}.repair-types h3{font-size:27px}.repair-types p{font-size:12px}.repair-index{font-size:11px}.repair-example{font-size:11px}.repair-types small{font-size:11px}.mechanism-list{gap:25px}.mechanism-list article{grid-template-columns:40px 1fr;gap:11px}.mechanism-list h4{font-size:15px}.mechanism-list p{font-size:11px}.evidence-principles{gap:23px}.evidence-principles h3{font-size:16px}.evidence-principles p{font-size:12px}.closing h2{font-size:49px}}
@media(max-width:580px){.wrap{padding-inline:22px}.header{padding:13px 22px 0}.header nav{font-size:11px;gap:12px;margin-top:11px}.header nav a{padding-bottom:13px}.brand{font-size:11px;gap:11px}.brand small{font-size:11px;margin-left:10px}.brand em{font-size:13px}.hero{grid-template-columns:1fr;gap:31px;padding-block:29px 37px}.hero h1{font-size:54px;margin-block:18px}.hero-deck{font-size:19px}.hero-sub{font-size:13px;line-height:1.75;margin-top:15px}.hero-actions{gap:16px;margin-top:23px}.hero-actions .button{font-size:11px;padding:13px 16px}.hero-actions .text-link{font-size:11px}.hero-figure{padding:20px}.figure-label{font-size:11px}.figure-title{font-size:32px;margin:19px 0}.hero-route>div{padding:12px;gap:12px}.hero-route p{font-size:13px}.hero-route small{font-size:11px}.hero-route b{font-size:11px}.route-dot{width:23px;height:23px;font-size:11px}.hero-figure figcaption{font-size:13px;margin-top:20px}.figure-link{font-size:11px;margin-top:16px}.thesis>.wrap{display:block;padding-block:22px}.thesis .eyebrow{font-size:11px;margin-bottom:10px}.thesis p{font-size:13px;line-height:1.75}.section{padding-block:45px}.section-heading{gap:15px;margin-bottom:27px}.section-heading h2{font-size:38px}.section-heading>div>p{font-size:13px;line-height:1.8}.chapter{font-size:11px}.overview-row{grid-template-columns:22px 1fr 22px;gap:11px 13px;padding:21px 0;align-items:start}.case-number{font-size:11px;padding-top:6px}.overview-name b{font-size:23px;line-height:1.3}.overview-name small{font-size:11px;margin-top:5px}.overview-lesson{grid-column:2;grid-row:2}.overview-lesson strong{font-size:13px}.overview-lesson small{font-size:11px;margin-top:7px;line-height:1.7}.overview-arrow{grid-column:3;grid-row:1;font-size:22px}.scope-note{font-size:11px;line-height:1.8}.explorer>.wrap{padding-inline:16px}.explorer .section-heading{padding-inline:6px}.case-tabs{grid-template-columns:repeat(3,minmax(0,1fr))}.case-tabs button{font-size:11px;padding:13px 10px;min-height:65px}.case-tabs button>span{font-size:11px;margin-bottom:6px}.case-study{padding:21px 16px}.case-heading{grid-template-columns:1fr;gap:20px;padding-bottom:23px}.case-heading h3{font-size:38px}.case-heading .eyebrow{font-size:11px;line-height:1.8}.case-heading>div>p:last-child{font-size:12px;line-height:1.8}.case-lesson{border-left:0;border-top:1px solid var(--line);padding:18px 0 0}.case-heading .case-lesson>p:last-child{font-size:23px;line-height:1.35;margin-top:10px}.evolution-label{display:block;margin-top:25px}.evolution-label h4{font-size:13px}.evolution-label>span{display:block;margin-top:7px;font-size:11px}.evolution{grid-template-columns:1fr;gap:0;margin:19px 0 24px}.evolution li{border-top:0;border-left:1px solid var(--line);padding:0 0 23px 20px}.evolution li:last-child{padding-bottom:0}.evolution li:before{top:5px;left:-4px}.evolution-number{font-size:11px}.evolution-type{font-size:11px}.evolution h5{font-size:14px;margin:9px 0 8px}.evolution p{font-size:12px;line-height:1.75}.incident-heading{display:block;padding-top:22px}.incident-heading h4{font-size:13px}.incident-heading p{font-size:11px;margin-top:7px}.incident-tabs{display:grid;grid-template-columns:1fr;gap:7px;margin-top:14px}.incident-tabs button{font-size:12px;padding:11px 12px;line-height:1.5}.incident-intro{gap:18px;margin-bottom:23px}.incident-intro h4{font-size:29px;line-height:1.2}.incident-intro>div>p{font-size:12px;line-height:1.85}.incident-intro .outcome{font-size:11px}.incident-tags{font-size:11px;gap:8px}.source-links{gap:9px 14px}.source-links a{font-size:11px}.trace-toolbar{display:block}.trace-toolbar>.eyebrow{font-size:11px;margin-bottom:12px}.view-toggle{display:grid;grid-template-columns:1fr 1fr}.view-toggle button{font-size:11px;padding:12px 8px}.flow-panel{padding:17px 15px;margin-top:10px}.flow-caption{display:block;font-size:11px;line-height:1.8}.flow-caption>span+span{display:block;margin-top:4px}.flow-steps{grid-template-columns:1fr;gap:23px;margin:18px 0}.flow-steps li{display:flex;align-items:center;gap:13px;min-height:57px;padding:12px}.flow-steps strong{margin-top:0;font-size:12px}.flow-steps i{inset:auto auto -24px 50%;transform:rotate(90deg);line-height:1.6}.flow-explanation{padding-top:15px}.flow-explanation h5{font-size:12px}.flow-explanation p,.flow-limit{font-size:11px;line-height:1.85}.flow-limit{margin-top:15px}.responsibility-heading{display:block;margin-top:24px}.responsibility-heading h5{font-size:13px}.responsibility-heading>span{font-size:11px;margin-top:10px;gap:6px}.key:first-child{margin-left:0}.responsibility-grid{gap:7px}.responsibility-grid button{min-height:115px;padding:12px 10px}.responsibility-grid b{font-size:12px;line-height:1.5;margin:7px 0}.responsibility-grid small{font-size:11px}.piece-explanation{grid-template-columns:24px 1fr;gap:12px;padding:17px 13px}.piece-number{font-size:11px}.piece-explanation h6{font-size:14px;line-height:1.5}.piece-explanation p{font-size:11px;line-height:1.85}.piece-explanation a{font-size:11px;line-height:1.8}.verification>summary{font-size:12px;line-height:1.7;gap:16px}.verification>div>p:not(.eyebrow):not(.small){font-size:12px}.verification .small{font-size:11px}.case-end>p{font-size:11px;line-height:1.8}.case-end>button{width:100%;padding:13px;font-size:12px}.table-hint{font-size:11px;line-height:1.8}.map-reading{grid-template-columns:22px 1fr;gap:13px}.map-reading p{font-size:12px;line-height:1.8}.map-reading>span{font-size:23px}.map-reading strong{display:block;margin-bottom:6px}.repair-types{grid-template-columns:1fr;gap:30px}.repair-index{font-size:11px}.repair-types h3{font-size:33px;margin:15px 0}.repair-types h3 br{display:none}.repair-types p{font-size:13px}.repair-example{font-size:12px;margin-top:17px}.repair-types small{font-size:11px;margin-top:14px}.mechanisms{margin-top:29px}.mechanisms>summary{font-size:12px;line-height:1.8;gap:17px}.mechanism-list{grid-template-columns:1fr;gap:27px}.mechanism-list article{grid-template-columns:42px 1fr;gap:15px}.mechanism-list article>span{font-size:11px}.mechanism-list h4{font-size:17px}.mechanism-list p{font-size:12px;line-height:1.8}.mechanism-note{font-size:11px;line-height:1.8}.evidence-principles{grid-template-columns:1fr;gap:25px}.evidence-principles h3{font-size:21px;margin-bottom:10px}.evidence-principles p{font-size:13px}.correction-note{padding:18px 19px;font-size:12px;margin-top:25px}.source-catalogue{margin-top:25px}.source-catalogue summary{padding-block:18px}.source-catalogue summary b{font-size:13px;line-height:1.6}.source-catalogue summary small{font-size:11px;line-height:1.7}.source-catalogue code{font-size:11px}.source-catalogue details>div>p{font-size:12px}.small{font-size:11px}.closing{padding-block:46px}.closing h2{font-size:41px}.closing .eyebrow{font-size:11px}.closing p:not(.eyebrow){font-size:14px;line-height:1.8}.closing p br{display:none}.light{font-size:11px;gap:20px;padding:13px 15px}footer{font-size:11px;padding-block:23px}footer a{font-size:11px}}
@media(max-width:350px){.hero h1{font-size:46px}.hero .eyebrow{font-size:11px}.brand small{margin-left:7px;font-size:5px}.header nav{font-size:11px;gap:8px}.section-heading h2{font-size:34px}.hero-route small{font-size:11px}.hero-figure{padding:17px}.case-tabs button{font-size:11px;padding:12px 8px}.case-study{padding-inline:13px}.responsibility-grid b{font-size:11px}.responsibility-grid small{font-size:5px}.flow-caption{font-size:5px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}button,a,summary{transition:none}}

/* Native disclosures retain real layout boxes at every viewport width. */
[hidden]{display:none!important}
.protocol-detail{border-block:1px solid var(--line);margin-bottom:24px}
.protocol-detail>summary{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:18px 0;font-size:12px}
.protocol-detail>summary>span:last-child{display:grid;place-items:center;flex-shrink:0;width:22px;height:22px;font-size:22px;line-height:1}
.protocol-detail>div{padding-bottom:23px}
.protocol-detail p{font-size:12px;color:var(--muted);line-height:1.8;margin-bottom:15px}
.protocol-detail a{font-size:11px;color:var(--green)}
.protocol-scroll{overflow-x:auto;max-width:100%;margin-block:20px;border:1px solid var(--line)}
.protocol-scroll table{border-collapse:collapse;width:100%;min-width:780px;font-size:11px}
.protocol-scroll caption{text-align:left;padding:13px;font:11px var(--mono);color:var(--green);background:var(--surface-2)}
.protocol-scroll th,.protocol-scroll td{text-align:left;padding:11px 13px;border-top:1px solid var(--line);vertical-align:top}
.protocol-scroll th{font-weight:550}.protocol-scroll thead{font-size:11px;background:var(--surface-2)}
.protocol-scroll tbody tr:nth-child(even){background:var(--surface-1)}