/**
 * Purpose: Visual presentation for Carson McRae's public product portfolio.
 * Scope: Light/dark tokens, responsive layout, navigation, measurement evidence, and keyboard focus.
 * Does NOT belong: Product runtime styles, private data, or JavaScript behavior.
 */
:root{color-scheme:light;--paper:#f8f8f5;--ink:#172427;--muted:#526164;--line:#d8dfdc;--accent:#166258;--blue:#244fc2;--white:#fff;--media:#eaf0f4;--tint:#eaf0ec;--on-solid:#fff;--control:#7b8d87}
:root[data-theme=dark]{color-scheme:dark;--paper:#111b1b;--ink:#edf2ef;--muted:#b4c3bf;--line:#354a46;--accent:#92d9c6;--blue:#abc2ff;--white:#1a2827;--media:#172423;--tint:#213630;--on-solid:#111b1b;--control:#829a93}
@media(prefers-color-scheme:dark){:root:not([data-theme]){color-scheme:dark;--paper:#111b1b;--ink:#edf2ef;--muted:#b4c3bf;--line:#354a46;--accent:#92d9c6;--blue:#abc2ff;--white:#1a2827;--media:#172423;--tint:#213630;--on-solid:#111b1b;--control:#829a93}}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:18px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:5px}
a:hover{color:var(--accent)}
a:focus-visible,button:focus-visible,summary:focus-visible,video:focus-visible{outline:3px solid var(--blue);outline-offset:5px;border-radius:2px}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,p,figure,dl{margin:0}
h1,h2,h3{line-height:1.13}
h1,h2{font-family:Georgia,"Times New Roman",serif;font-weight:400;letter-spacing:-.045em}
h3{letter-spacing:-.025em;font-weight:650}
p+p{margin-top:20px}
.site-header,.site-footer,main{width:min(1152px,calc(100% - 64px));margin-inline:auto}
.site-header{min-height:112px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}
.wordmark{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:650;font-size:17px;white-space:nowrap}
.monogram{display:grid;place-items:center;width:38px;height:38px;border:1px solid var(--ink);font:17px Georgia,serif}
.site-header nav{display:flex;gap:25px;align-items:center;font-size:14px;font-weight:550;margin-left:auto}
.site-header nav a{display:flex;align-items:center;min-height:44px;text-decoration:none}
.site-header nav a[aria-current=page]{text-decoration:underline}
.nav-menu{position:relative;margin:0;border:0;background:none}
.nav-menu summary{min-height:44px;padding:0;font:inherit;line-height:44px;list-style:none}
.nav-menu summary::-webkit-details-marker{display:none}
.nav-menu summary::after{content:"";display:inline-block;width:6px;height:6px;margin-left:8px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-3px) rotate(45deg)}
.nav-menu[open] summary{border-bottom:0}
.nav-menu[open] summary::after{transform:translateY(1px) rotate(-135deg)}
.nav-menu summary:hover{color:var(--accent)}
.nav-menu:has([aria-current=page]) summary{text-decoration:underline;text-underline-offset:5px}
.site-header .nav-menu>ul{position:absolute;top:100%;left:-12px;z-index:5;min-width:190px;padding:6px;list-style:none;background:var(--white);border:1px solid var(--line);box-shadow:0 12px 28px rgb(0 0 0/.12)}
.site-header .nav-menu li+li{margin-top:0}
.site-header .nav-menu li a{gap:12px;padding:0 10px;font-size:14px;white-space:nowrap}
.site-header .nav-menu li a:hover{background:var(--tint)}
.nav-menu .app-icon{width:24px;height:24px;border-radius:6px}
.skip{position:fixed;top:12px;left:12px;z-index:10;background:var(--ink);color:var(--paper);padding:10px 20px;transform:translateY(-200%)}
.skip:focus{transform:translateY(0)}
.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.13em;font-weight:650;color:var(--muted);line-height:1.5}
.home-hero{padding:82px 0 90px;display:grid;grid-template-columns:minmax(0,1fr) 254px;gap:80px;align-items:center}
.home-hero h1{font-size:clamp(56px,6vw,82px);margin:23px 0 27px}
.intro{font-size:23px;line-height:1.5;max-width:680px}
.hero-detail{max-width:660px;color:var(--muted);font-size:17px}
.button{display:inline-flex;justify-content:center;align-items:center;gap:24px;min-height:48px;padding:12px 23px;background:var(--ink);border:1px solid var(--ink);color:var(--on-solid);font-size:15px;font-weight:600;text-decoration:none}
.button:hover{background:var(--accent);color:var(--on-solid);border-color:var(--accent)}
.home-hero .button{margin-top:30px}
.hero-aside{border-left:1px solid var(--line);padding-left:30px}
.aside-label{font-size:12px;text-transform:uppercase;letter-spacing:.1em;font-weight:650;color:var(--muted)}
.hero-aside dl{margin-top:30px}
.hero-aside dl>div+div{margin-top:28px}
.hero-aside dt{font:43px/1.1 Georgia,serif;letter-spacing:-.04em}
.hero-aside dd{margin:8px 0 0;font-size:14px;color:var(--muted)}
.section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:32px}
.section-heading h2{font-size:42px}
.section-heading p{font-size:15px;color:var(--muted);max-width:310px}
.work-section{scroll-margin-top:32px;padding-bottom:60px}
.project-card{display:grid;grid-template-columns:1.1fr 1fr;border:1px solid var(--line);background:var(--white);margin-bottom:28px;overflow:hidden}
.project-art{display:flex;align-items:center;justify-content:center;min-height:325px;background:var(--media)}
.project-art img{width:100%;aspect-ratio:16/9;object-fit:contain}
.project-copy{padding:32px 35px 34px}
.card-top{display:flex;justify-content:space-between;gap:15px}
.card-top .eyebrow{font-size:11px}
.arrow{font-size:25px;line-height:1}
.project-copy h3{font-size:35px;margin-top:22px;margin-bottom:14px;display:flex;align-items:center;gap:14px}
.app-icon{flex-shrink:0;border-radius:10px;box-shadow:0 0 0 1px var(--line)}
.project-copy h3 a{text-decoration:none}
.project-copy>p{font-size:16px;color:var(--muted)}
.project-copy .project-fact{font-size:14px;font-weight:650;color:var(--ink);margin-top:20px}
.text-link{display:inline-flex;align-items:center;gap:14px;min-height:44px;font-weight:600;font-size:15px}
.project-copy .text-link{margin-top:18px}
.card-links{display:flex;flex-wrap:wrap;column-gap:28px;margin-top:18px}
.project-copy .card-links .text-link{margin-top:0}
.about-section{padding:78px 0 86px}
.about-section h2{font-size:48px;margin-top:18px;margin-bottom:30px}
.about-columns{display:grid;grid-template-columns:1fr 1fr;gap:60px;color:var(--muted)}
.about-columns p+p{margin-top:0}
.about-section .text-link{margin-top:24px}
.site-footer{border-top:1px solid var(--line);padding:34px 0 42px;display:flex;justify-content:space-between;gap:30px;font-size:14px}
.site-footer strong{font-weight:650}
.site-footer p{margin-top:5px;color:var(--muted);font-size:13px}
.site-footer>div:last-child{display:flex;align-items:start;gap:25px}
.site-footer a{min-height:44px;display:flex;align-items:center}
.back-link{font-size:14px;display:inline-flex;min-height:44px;align-items:center;margin-bottom:26px}
.case-hero{padding:30px 0 0}
.case-hero h1{font-size:clamp(68px,8vw,104px);margin-top:20px;display:flex;align-items:center;gap:22px}
.case-hero .app-icon{border-radius:16px}
.case-headline{font-size:clamp(27px,3.5vw,42px);line-height:1.3;font-family:Georgia,serif;letter-spacing:-.025em;margin-top:14px}
.case-summary{max-width:720px;color:var(--muted);font-size:19px;margin-top:22px}
.case-links{display:flex;gap:28px;align-items:center;flex-wrap:wrap;margin-top:28px}
.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);margin-top:44px;padding:27px 0 30px;gap:24px}
.metrics>div+div{border-left:1px solid var(--line);padding-left:28px}
.metrics dt{font:43px/1.15 Georgia,serif;letter-spacing:-.035em}
.metrics dd{margin:8px 0 0;color:var(--muted);font-size:14px}
.case-art{margin-top:10px}
.case-art img{width:100%;max-height:610px;object-fit:contain;background:var(--media);border:1px solid var(--line)}
figcaption{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.5}
.case-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:70px;margin-top:62px}
.case-index{align-self:start;position:sticky;top:24px}
.case-index nav{display:flex;flex-direction:column;font-size:14px;margin-top:18px}
.case-index a{min-height:44px;display:flex;align-items:center;text-decoration:none;color:var(--muted)}
.case-index a:hover{text-decoration:underline;color:var(--accent)}
.reading-section{padding:0 0 52px;margin-bottom:44px;border-bottom:1px solid var(--line);scroll-margin-top:30px}
.reading-section h2{font-size:38px;margin-top:15px;margin-bottom:24px}
.reading-section>p:not(.eyebrow){max-width:790px}
.reading-section>ul:not([class]){max-width:790px}
.reading-section>ul:not([class]) li+li{margin-top:12px}
.role-list{margin-top:26px;font-size:14px}
.role-list>div{display:grid;grid-template-columns:135px minmax(0,1fr);gap:20px;padding:14px 0;border-top:1px solid var(--line)}
.role-list dt{color:var(--muted)}
.role-list dd{margin:0;font-weight:550}
.role-list+p{margin-top:24px}
.section-intro{color:var(--muted);font-size:17px}
.decision{display:grid;grid-template-columns:44px minmax(0,1fr);gap:21px;margin-top:45px}
.decision-number{font:30px/1.2 Georgia,serif;color:var(--accent);padding-top:3px}
.decision h3{font-size:24px;line-height:1.3;margin-bottom:18px}
.decision p{font-size:17px}
.decision strong{font-weight:650}
.tradeoff{border-left:2px solid var(--line);padding-left:18px;color:var(--muted)}
details{margin-top:20px;border:1px solid var(--line);background:var(--white)}
summary{cursor:pointer;min-height:48px;padding:12px 16px;font-size:15px;font-weight:600;line-height:1.5}
details[open] summary{border-bottom:1px solid var(--line)}
details>p,details>ul{padding:16px 20px;margin:0!important;font-size:16px!important}
details>ul{padding-left:37px}
details li+li{margin-top:12px}
.walkthrough details{margin-top:12px}
.walkthrough .button{margin-top:24px}
.scope-list{padding-left:22px;display:grid;grid-template-columns:1fr 1fr;gap:14px 30px;font-size:16px}
.stack{font-size:14px;color:var(--muted);margin-top:28px!important}
.status-note{font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:20px;margin-top:26px!important}
.reflection>p:last-child{font:27px/1.5 Georgia,serif;letter-spacing:-.02em;margin-top:18px}
.next-case{margin:12px 0 65px;padding:35px;background:var(--tint)}
.next-case h2{font-size:42px;margin:12px 0}
.next-case h2 a{text-decoration:none}
.next-case p:last-child{color:var(--muted);font-size:17px;max-width:720px}
.evidence-section{padding:40px 0 64px;border-bottom:1px solid var(--line)}
.evidence-section h2{font-size:42px;max-width:720px;margin:16px 0 30px}
.evidence-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.evidence-grid article{padding-top:24px;border-top:1px solid var(--line)}
.evidence-grid h3{font-size:22px;line-height:1.3;margin-bottom:14px}
.evidence-grid p{font-size:16px;color:var(--muted)}
.evidence-grid .text-link{margin-top:16px}
.comparison{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:26px 0}
.comparison article{background:var(--white);border:1px solid var(--line);padding:22px}
.comparison h3{font-size:21px;margin-bottom:15px}
.comparison p{font-size:16px}
.walkthrough video{display:block;width:100%;height:auto;max-height:620px;background:#111;border:1px solid var(--line);margin-top:26px}
.media-note{font-size:13px!important;line-height:1.6;color:var(--muted);margin-top:14px!important}
.tour-steps{padding:12px 20px 20px 42px;margin:0}
.tour-steps li{padding-left:6px;margin-top:26px}
.tour-steps h3{font-size:20px;line-height:1.35;margin-bottom:12px}
.tour-steps p{font-size:16px}
.tour-steps figure{margin-top:22px}
.tour-steps img{width:100%;border:1px solid var(--line)}
.delivery-content{max-width:810px;margin:65px auto 0}
.delivery-content li+li{margin-top:12px}
.priority-table{margin:26px 0;overflow-x:auto}
.priority-table table{width:100%;border-collapse:collapse;font-size:15px;text-align:left}
.priority-table caption{text-align:left;font-weight:650;margin-bottom:15px}
.priority-table th,.priority-table td{padding:16px 12px;vertical-align:top;border-bottom:1px solid var(--line);min-width:125px}
.priority-table thead{background:var(--tint)}
.theme-toggle{display:inline-flex;align-items:center;gap:9px;min-height:44px;flex-shrink:0;padding:8px 11px;border:1px solid var(--control);border-radius:6px;background:var(--white);color:var(--ink);font:600 13px/1.2 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;white-space:nowrap;cursor:pointer}
.theme-toggle[hidden]{display:none}
.theme-toggle:hover{border-color:var(--accent)}
.theme-toggle svg{width:17px;height:17px;flex-shrink:0}
.theme-rail{display:block;position:relative;width:30px;height:18px;border:1px solid var(--control);border-radius:20px;background:var(--tint)}
.theme-knob{position:absolute;left:3px;top:3px;width:10px;height:10px;border-radius:50%;background:var(--muted);transition:transform .15s ease}
.theme-toggle[aria-pressed=true] .theme-rail{background:var(--accent);border-color:var(--accent)}
.theme-toggle[aria-pressed=true] .theme-knob{background:var(--on-solid);transform:translateX(12px)}
.engineering-glance{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;line-height:1.6}
.engineering-glance p+p{margin-top:8px}
.engineering-glance strong{font-size:15px;color:var(--ink)}
.engineering-glance p,.engineering-glance span{color:var(--muted)}
.engineering-glance a{display:inline-flex;align-items:center;min-height:44px;font-weight:600;font-size:13px}
.work-measurement{color:var(--muted);font-size:13px;line-height:1.65;max-width:780px;margin-top:12px}
.source-metrics{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin:28px 0}
.source-metrics>div{border-top:1px solid var(--line);padding-top:20px}
.source-metrics dt{font:42px/1.2 Georgia,serif;letter-spacing:-.035em}
.source-metrics dd{margin:10px 0 0;color:var(--muted);font-size:14px;line-height:1.6}
.measurement-note{font-size:14px!important;line-height:1.65;color:var(--muted)}
.coverage-table{margin:28px 0;overflow-x:auto}
.coverage-table table{width:100%;border-collapse:collapse;font-size:15px;text-align:left}
.coverage-table caption{text-align:left;font-weight:650;margin-bottom:14px}
.coverage-table th,.coverage-table td{padding:13px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.coverage-table thead{background:var(--tint)}
@media(max-width:900px){
 .site-header,.site-footer,main{width:calc(100% - 44px)}
 .site-header nav{gap:18px}
 .site-header{display:grid;grid-template-columns:1fr auto;padding:20px 0 12px;min-height:0;row-gap:8px}
 .site-header nav{grid-column:1/-1;grid-row:2;margin:0;flex-wrap:wrap}
 .theme-toggle{grid-column:2;grid-row:1}
 .home-hero{gap:35px;grid-template-columns:minmax(0,1fr) 200px}
 .home-hero h1{font-size:62px}
 .hero-aside{padding-left:22px}
 .project-card{grid-template-columns:1fr 1fr}
 .project-copy{padding:25px}
 .project-art{min-height:280px}
 .case-layout{grid-template-columns:160px minmax(0,1fr);gap:35px}
 .case-index .eyebrow{font-size:11px}
 .case-index a{font-size:13px}
 .metrics dt{font-size:36px}
}
@media(max-width:650px){
 .site-header,.site-footer,main{width:calc(100% - 36px)}
 .site-header{padding:20px 0 12px;flex-direction:column;align-items:start;gap:12px}
 .site-header nav{width:100%;justify-content:space-between;gap:10px;font-size:13px}
 .site-header nav{flex-wrap:wrap;justify-content:flex-start;column-gap:20px;row-gap:0}
 .wordmark{font-size:15px;gap:8px}
 .monogram{width:32px;height:32px;font-size:15px}
 .home-hero{padding:48px 0 50px;grid-template-columns:1fr;gap:36px}
 .home-hero h1{font-size:clamp(46px,11vw,64px)}
 .home-hero .eyebrow{font-size:10px}
 .intro{font-size:21px}
 .hero-aside{padding:24px 0 0;border-left:0;border-top:1px solid var(--line)}
 .hero-aside dl{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:20px}
 .hero-aside dl>div+div{margin:0}
 .hero-aside dl>div:last-child{grid-column:1/-1}
 .hero-aside dt{font-size:36px}
 .section-heading{display:block}
 .section-heading h2{font-size:36px}
 .section-heading p{margin-top:14px}
 .project-card{grid-template-columns:1fr}
 .project-art{min-height:0}
 .project-copy{padding:25px}
 .project-copy h3{font-size:31px;margin-top:18px}
 .about-section{padding:48px 0}
 .about-section h2{font-size:39px}
 .about-columns{grid-template-columns:1fr;gap:20px;font-size:17px}
 .site-footer{flex-direction:column}
 .site-footer>div:last-child{gap:24px;flex-wrap:wrap}
 .case-hero{padding-top:20px}
 .case-hero h1{font-size:62px;gap:16px}
 .case-hero .app-icon{width:56px;height:56px;border-radius:13px}
 .case-headline{font-size:30px}
 .case-summary{font-size:18px}
 .case-links{gap:15px}
 .metrics{gap:15px;padding-bottom:20px}
 .metrics>div+div{padding-left:12px}
 .metrics dt{font-size:clamp(24px,7vw,34px);overflow-wrap:anywhere}
 .metrics dd{font-size:12px;line-height:1.5}
 .case-layout{grid-template-columns:1fr;gap:35px;margin-top:36px}
 .case-index{position:static;border-bottom:1px solid var(--line);padding-bottom:24px}
 .case-index nav{display:grid;grid-template-columns:1fr 1fr;gap:0 20px;margin-top:10px}
 .case-index a{font-size:13px}
 .reading-section h2{font-size:32px}
 .reading-section{padding-bottom:35px;margin-bottom:34px}
 .reading-section>p{font-size:17px}
 .role-list>div{grid-template-columns:1fr;gap:6px}
 .decision{grid-template-columns:31px minmax(0,1fr);gap:13px;margin-top:35px}
 .decision-number{font-size:26px}
 .decision h3{font-size:22px}
 .decision p{font-size:16px}
 .tradeoff{padding-left:12px}
 .scope-list{grid-template-columns:1fr}
 .reflection>p:last-child{font-size:24px}
 .next-case{padding:25px;margin-bottom:40px}
 .evidence-grid,.comparison{grid-template-columns:1fr}
 .evidence-section{padding:30px 0 42px}
 .evidence-section h2{font-size:34px}
 .delivery-content{margin-top:42px}
 .tour-steps{padding-left:30px;padding-right:12px}
 .source-metrics{gap:15px}
 .source-metrics dt{font-size:34px}
 .coverage-table table{font-size:13px}
 .coverage-table th,.coverage-table td{padding:12px 7px}
 .theme-toggle{font-size:12px;padding:8px;gap:7px}
 .theme-toggle svg{display:none}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.theme-knob{transition:none}}