:root{--blue:#121d66;--blue-2:#1c2d92;--copper:#c55b38;--sand:#e6c98a;--paper:#f5f0e6;--ivory:#fffdf7;--ink:#171716;--muted:#68665f;--line:rgba(23,23,22,.18);--display:Georgia,"Times New Roman",serif;--sans:Arial,"Helvetica Neue",sans-serif;--mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace;--max:1240px;--ease:cubic-bezier(.22,.75,.25,1)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.65}img{display:block;max-width:100%;height:auto}a{color:inherit}button{font:inherit}.skip-link{position:fixed;z-index:100;left:1rem;top:-5rem;background:var(--ivory);color:var(--blue);padding:.7rem 1rem;border:2px solid var(--blue)}.skip-link:focus{top:1rem}.reading-progress{position:fixed;z-index:80;left:0;top:0;width:100%;height:3px}.reading-progress span{display:block;width:0;height:100%;background:var(--copper)}
.site-header{position:relative;z-index:50;background:var(--paper);border-bottom:1px solid var(--line)}.header-main{max-width:var(--max);min-height:82px;margin:auto;padding:0 28px;display:flex;align-items:center;gap:36px}.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:47px;height:47px;background:var(--blue);color:white;font:500 12px/1 var(--mono);letter-spacing:-1px}.brand-mark span{color:var(--sand)}.brand>b{font-size:15px;letter-spacing:.04em}.site-nav{margin-left:auto;display:flex;align-items:center;gap:25px}.site-nav a{text-decoration:none;font-size:13px;font-weight:600}.site-nav a:hover,.site-nav a[aria-current=page]{color:var(--copper)}.site-nav a[aria-current=page]{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:8px}.menu-button{display:none}.scope-line{margin:0;border-top:1px solid var(--line);padding:6px 28px;text-align:center;font:400 10px/1.5 var(--mono);letter-spacing:.08em;color:var(--muted);text-transform:uppercase}
.home-hero{max-width:var(--max);margin:auto;padding:46px 28px 76px;display:grid;grid-template-columns:.88fr 1.12fr;gap:52px;align-items:center}.hero-copy{padding:30px 0}.eyebrow{display:block;margin-bottom:20px;color:var(--copper);font:500 11px/1.4 var(--mono);letter-spacing:.13em}.hero-copy h1,.page-hero h1,.article-hero h1,.guide-hero h1{margin:0;font:600 clamp(3.15rem,6.4vw,6.3rem)/.91 var(--display);letter-spacing:-.045em}.hero-copy>p{max-width:600px;margin:30px 0;font-size:18px;color:#3f3f3a}.hero-actions{display:flex;gap:24px;align-items:center;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:32px;min-height:52px;padding:0 20px;background:var(--copper);color:white;text-decoration:none;font-size:13px;font-weight:700}.button:hover{background:var(--blue-2)}.text-link{font-size:13px;font-weight:600;text-underline-offset:5px}.hero-specimen{position:relative;background:var(--blue);padding:28px 28px 48px}.specimen-photo{margin:0;position:relative}.specimen-photo picture{display:block;overflow:hidden;background:#ddd}.specimen-photo img{width:100%;aspect-ratio:3/2;object-fit:cover}.specimen-photo figcaption{margin-top:9px;font:400 9px/1.45 var(--mono);color:var(--muted)}.hero-specimen figcaption,.split-feature figcaption,.guide-hero figcaption{color:rgba(255,255,255,.7)}.specimen-photo figcaption a{text-underline-offset:3px}.floating-label,.lab-tag{position:absolute;background:var(--sand);color:var(--blue);padding:9px 12px;font:400 9px/1.45 var(--mono);letter-spacing:.04em}.floating-label{right:-13px;bottom:20px}.floating-label b{font-weight:500}
.premise{background:var(--blue);color:white;padding:76px max(28px,calc((100vw - var(--max))/2 + 28px));display:grid;grid-template-columns:1fr 1fr;gap:8vw;align-items:end}.premise span,.final-note>span{font:400 10px/1.4 var(--mono);letter-spacing:.13em;color:var(--sand)}.premise h2{max-width:620px;margin:18px 0 0;font:500 clamp(2.8rem,5vw,5rem)/.95 var(--display);letter-spacing:-.035em}.premise p{max-width:580px;margin:0;font-size:18px;line-height:1.8;color:#e2e1ec}
.materials-section{max-width:var(--max);margin:auto;padding:100px 28px}.section-title{display:grid;grid-template-columns:100px 1fr 1fr;gap:30px;align-items:end;margin-bottom:46px}.section-title>span{font:500 12px var(--mono);color:var(--copper)}.section-title h2{margin:0;font:600 clamp(2.5rem,4vw,4.2rem)/.96 var(--display)}.section-title p{max-width:440px;margin:0;color:var(--muted)}.material-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.material-card{min-width:0;background:var(--ivory);padding:25px;text-decoration:none;transition:transform .25s var(--ease),background .25s}.material-card:hover{position:relative;z-index:2;background:#fff;transform:translateY(-5px);box-shadow:0 14px 34px rgba(17,22,64,.11)}.swatch{height:122px;margin-bottom:25px;padding:13px;display:flex;align-items:flex-start;justify-content:space-between;color:white;background-color:var(--blue);background-size:cover;background-position:center;position:relative;overflow:hidden}.swatch:after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(9,15,61,.84),rgba(9,15,61,.05))}.swatch span,.swatch b{position:relative;z-index:1;font:500 10px var(--mono);letter-spacing:.08em}.swatch-stone{background-image:linear-gradient(105deg,rgba(17,29,102,.85),rgba(17,29,102,.1)),url('../images/stone-400.jpg')}.swatch-wood{background-image:linear-gradient(105deg,rgba(17,29,102,.85),rgba(17,29,102,.1)),url('../images/wood-400.jpg')}.swatch-metal{background-image:linear-gradient(105deg,rgba(17,29,102,.85),rgba(17,29,102,.1)),url('../images/metal-400.jpg')}.swatch-faience{background-image:linear-gradient(105deg,rgba(17,29,102,.85),rgba(17,29,102,.1)),url('../images/faience-400.jpg')}.swatch-textile{background-image:linear-gradient(105deg,rgba(17,29,102,.85),rgba(17,29,102,.1)),url('../images/textile-400.jpg')}.swatch-papyrus{background-image:linear-gradient(105deg,rgba(17,29,102,.85),rgba(17,29,102,.1)),url('../images/papyrus-400.jpg')}.material-card h3{margin:0 0 12px;font:600 26px/1.06 var(--display)}.material-card p{margin:0 0 26px;color:var(--muted);font-size:14px}.material-card i{font:500 10px var(--mono);font-style:normal;color:var(--copper)}
.split-feature{display:grid;grid-template-columns:1.05fr .95fr;background:var(--copper);color:white}.split-feature>div:first-child{padding:32px}.split-feature>div:last-child{padding:8vw;display:flex;flex-direction:column;justify-content:center}.split-feature h2{margin:0 0 25px;font:600 clamp(3rem,5vw,5.6rem)/.92 var(--display)}.split-feature p{max-width:520px;margin:0 0 32px;font-size:18px}.button.pale{background:var(--sand);color:var(--blue);align-self:flex-start}.button.pale:hover{background:white}.split-feature .eyebrow{color:var(--sand)}
.survival-strip{max-width:var(--max);margin:auto;padding:100px 28px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px}.survival-strip>div{padding:32px;border:1px solid var(--line);margin-right:-1px}.survival-strip span{color:var(--copper);font:500 10px var(--mono)}.survival-strip h3{margin:42px 0 14px;font:600 34px var(--display)}.survival-strip p{min-height:54px;color:var(--muted);font-size:14px}.survival-strip a{font:500 10px var(--mono);text-underline-offset:5px}.method-banner{background:var(--sand);padding:70px max(28px,calc((100vw - var(--max))/2 + 28px));display:grid;grid-template-columns:1fr auto auto;gap:6vw;align-items:center}.method-banner h2{margin:0;font:600 clamp(2.7rem,4vw,4.6rem)/.95 var(--display)}.method-banner p{max-width:630px;margin:20px 0 0}.timer{display:flex;gap:12px;align-items:center;color:var(--blue)}.timer b{font:600 83px/.8 var(--display)}.timer span{font:500 9px/1.5 var(--mono)}.final-note{max-width:900px;margin:0 auto;padding:120px 28px;text-align:center}.final-note h2{margin:24px 0;font:600 clamp(3rem,5vw,5.2rem)/.94 var(--display)}.final-note p{max-width:680px;margin:0 auto 24px;color:var(--muted)}.final-note a{font-weight:700;text-underline-offset:6px}
.shell{max-width:var(--max);margin:auto;padding:0 28px 100px}.crumbs{padding:24px 0;border-bottom:1px solid var(--line)}.crumbs ol{list-style:none;margin:0;padding:0;display:flex;gap:10px;flex-wrap:wrap;font:400 9px/1.4 var(--mono);text-transform:uppercase;color:var(--muted)}.crumbs li:not(:last-child):after{content:"/";margin-left:10px}.crumbs a{text-underline-offset:3px}.page-hero{padding:80px 0 70px;border-bottom:1px solid var(--line)}.page-hero h1{max-width:1000px}.page-hero>p{max-width:760px;margin:28px 0 0;font-size:19px;color:var(--muted)}.hub-materials{margin-top:60px}.editorial-block{max-width:850px;margin:90px auto 0}.editorial-block h2{margin:50px 0 14px;font:600 35px/1.05 var(--display)}.editorial-block p{color:#4c4a45}.editorial-block.narrow{margin-top:60px}
.article-hero{padding:58px 0 48px;display:grid;grid-template-columns:210px 1fr;gap:45px;align-items:end}.article-index{align-self:stretch;background:var(--blue);color:white;padding:22px;display:flex;flex-direction:column;justify-content:space-between}.article-index span{font:500 44px/1 var(--display);color:var(--sand)}.article-index b{font:500 10px var(--mono);letter-spacing:.11em}.article-hero h1{max-width:890px}.article-hero p{max-width:780px;margin:22px 0 0;font-size:19px;color:var(--muted)}.hero-image-wrap{position:relative;background:var(--blue);padding:30px}.hero-image-wrap .specimen-photo figcaption{color:rgba(255,255,255,.72)}.lab-tag{right:17px;top:17px}.article-layout{display:grid;grid-template-columns:210px minmax(0,780px);justify-content:center;gap:70px;margin-top:80px}.observation-key{align-self:start;position:sticky;top:30px;padding-top:14px;border-top:3px solid var(--blue);display:flex;flex-direction:column;gap:11px;font-size:12px}.observation-key>b{font:500 10px var(--mono);margin-bottom:10px}.observation-key span{display:flex;gap:10px}.observation-key i{display:grid;place-items:center;width:22px;height:22px;background:var(--sand);font:500 10px var(--mono);font-style:normal}.observation-key p{color:var(--muted)}.prose{min-width:0}.prose .standfirst{margin:0 0 55px;font:500 28px/1.45 var(--display);color:var(--blue)}.prose section{margin:0 0 48px}.prose h2{margin:0 0 14px;font:600 36px/1.08 var(--display)}.prose p{margin:0;color:#45443f;font-size:17px;line-height:1.82}.field-box{margin:60px 0 32px;padding:25px;background:var(--sand);border-left:6px solid var(--copper)}.field-box>b{font:500 10px var(--mono);letter-spacing:.1em}.field-box p{margin-top:10px;color:var(--ink)}.source-line{padding-top:25px;border-top:1px solid var(--line);font-size:12px!important}.source-line a{text-underline-offset:4px}.next-link{margin-top:95px;background:var(--blue);color:white;padding:34px;display:grid;grid-template-columns:200px 1fr auto;gap:30px;align-items:center;text-decoration:none}.next-link span{font:500 10px var(--mono);color:var(--sand)}.next-link b{font:500 31px/1.1 var(--display)}.next-link i{font-style:normal;font-size:30px}.next-link:hover{background:var(--copper)}
.guide-hero{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;padding:55px 0;background:var(--blue);color:white;margin-top:35px;padding-left:45px}.guide-hero>div>p{max-width:620px;margin:24px 0 0;font-size:18px;color:#dddfea}.guide-hero .eyebrow{color:var(--sand)}.guide-hero .specimen-photo{margin-right:-1px}.guide-layout{display:grid;grid-template-columns:220px minmax(0,780px);justify-content:center;gap:65px;margin-top:80px}.guide-layout>aside{align-self:start;border-top:3px solid var(--copper);padding-top:15px;font-size:13px}.guide-layout>aside>b{font:500 10px var(--mono)}.guide-layout>aside p{color:var(--muted)}.guide-layout>aside span{display:block;margin-top:25px;font:400 9px var(--mono);color:var(--copper)}
.source-directory{list-style:none;margin:60px 0 0;padding:0;border-top:1px solid var(--line)}.source-directory li{padding:28px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:1fr 190px;gap:30px;align-items:center}.source-directory h2{margin:0 0 6px;font:600 28px var(--display)}.source-directory p{margin:0;color:var(--muted);font-size:14px}.source-directory>a{justify-self:end;font:500 10px var(--mono);text-underline-offset:5px}.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:60px;background:var(--line)}.about-grid>div{background:var(--ivory);padding:30px}.about-grid h2{margin:0 0 16px;font:600 30px var(--display)}.about-grid p{margin:0;color:var(--muted);font-size:14px}.credits{margin-top:100px}.credits h2{margin:0 0 35px;font:600 50px var(--display)}.credits ul{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}.credits li{display:grid;grid-template-columns:160px 1fr 80px;gap:25px;padding:18px 0;border-bottom:1px solid var(--line);align-items:center;font-size:13px}.credits li>b{font-family:var(--display);font-size:20px}.credits li>a{font:500 9px var(--mono)}.legal{max-width:970px}.legal>section{max-width:760px;margin:60px auto}.legal h2{margin:45px 0 12px;font:600 34px var(--display)}.legal section p{color:#45443f}.updated{font:500 10px var(--mono)}
.not-found{min-height:70vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:80px 28px;background:var(--blue);color:white}.not-found>span{font:500 10px var(--mono);color:var(--sand)}.not-found>b{margin-top:60px;font:500 clamp(3.5rem,10vw,9rem)/.8 var(--display);color:var(--copper)}.not-found h1{max-width:750px;margin:25px 0;font:500 clamp(2.6rem,5vw,5rem)/.95 var(--display)}.not-found p{max-width:600px;color:#dddfea;margin:0 0 30px}
.site-footer{background:#0c1241;color:white;padding:70px max(28px,calc((100vw - var(--max))/2 + 28px)) 25px}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:60px}.footer-brand .brand-mark{background:var(--sand);color:var(--blue)}.footer-grid>div{display:flex;flex-direction:column;align-items:flex-start;gap:10px}.footer-grid>div>p{max-width:300px;color:#b6b7c8;font-size:13px}.footer-grid>div>b{font:500 10px var(--mono);color:var(--sand);margin-bottom:9px}.footer-grid>div>a:not(.brand){font-size:12px;text-decoration:none;color:#d8d8e0}.footer-grid>div>a:hover{color:var(--sand)}.footer-base{margin-top:55px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);display:flex;justify-content:space-between;gap:20px;color:#999bb0;font:400 9px var(--mono);text-transform:uppercase}
a:focus-visible,button:focus-visible{outline:3px solid var(--copper);outline-offset:4px}
@media(max-width:1000px){.header-main{min-height:72px}.menu-button{margin-left:auto;display:flex;width:44px;height:44px;background:transparent;border:0;flex-direction:column;justify-content:center;gap:7px;align-items:center}.menu-button span{display:block;width:23px;height:2px;background:var(--blue);transition:transform .2s}.menu-button[aria-expanded=true] span:first-child{transform:translateY(4.5px) rotate(45deg)}.menu-button[aria-expanded=true] span:last-child{transform:translateY(-4.5px) rotate(-45deg)}.site-nav{display:none;position:absolute;top:72px;left:0;right:0;background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 28px;grid-template-columns:repeat(3,1fr);gap:0}.site-nav.open{display:grid}.site-nav a{padding:13px 0}.home-hero{grid-template-columns:1fr;gap:20px}.hero-copy{max-width:780px}.hero-specimen{margin-left:12vw}.material-grid{grid-template-columns:repeat(2,1fr)}.method-banner{grid-template-columns:1fr auto}.method-banner>a{grid-column:1/-1;justify-self:start}.article-layout,.guide-layout{grid-template-columns:190px minmax(0,680px);gap:40px}.guide-hero{gap:35px}.footer-grid{grid-template-columns:2fr repeat(2,1fr)}.footer-grid>div:last-child{grid-column:2}.about-grid{grid-template-columns:1fr 1fr}}
@media(max-width:760px){.header-main{padding:0 18px}.scope-line{padding-inline:18px}.site-nav{grid-template-columns:1fr 1fr;padding:15px 18px}.home-hero{padding:28px 18px 55px}.hero-copy h1,.page-hero h1,.article-hero h1,.guide-hero h1{font-size:clamp(2.8rem,13vw,4.4rem)}.hero-specimen{margin-left:0;padding:18px 18px 38px}.floating-label{right:7px}.premise{padding:60px 18px;grid-template-columns:1fr;gap:35px}.materials-section{padding:70px 18px}.section-title{grid-template-columns:50px 1fr}.section-title p{grid-column:2}.split-feature{grid-template-columns:1fr}.split-feature>div:first-child{padding:18px}.split-feature>div:last-child{padding:65px 18px}.survival-strip{padding:70px 18px;grid-template-columns:1fr}.survival-strip p{min-height:0}.method-banner{padding:60px 18px;grid-template-columns:1fr}.method-banner>a{grid-column:auto}.final-note{padding:85px 18px}.shell{padding:0 18px 75px}.page-hero{padding:60px 0 50px}.page-hero>p{font-size:17px}.material-grid{grid-template-columns:1fr}.article-hero{grid-template-columns:1fr;gap:22px}.article-index{height:95px}.article-index span{font-size:35px}.hero-image-wrap{padding:16px}.article-layout,.guide-layout{grid-template-columns:1fr;margin-top:55px}.observation-key{position:static;display:grid;grid-template-columns:repeat(3,1fr)}.observation-key>b,.observation-key p{grid-column:1/-1}.prose .standfirst{font-size:24px}.prose h2{font-size:32px}.prose p{font-size:16px}.next-link{grid-template-columns:1fr auto}.next-link span{grid-column:1/-1}.guide-hero{grid-template-columns:1fr;padding:38px 0 0;margin-inline:-18px}.guide-hero>div{padding:0 18px}.guide-hero .specimen-photo{margin:0}.source-directory li{grid-template-columns:1fr}.source-directory>a{justify-self:start}.about-grid{grid-template-columns:1fr}.credits li{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:45px}.footer-grid>div:first-child{grid-column:1/-1}.footer-grid>div:last-child{grid-column:auto}.footer-base{flex-direction:column}.not-found>b{margin-top:40px}}
@media(max-width:390px){.brand>b{display:none}.site-nav{grid-template-columns:1fr}.hero-actions{align-items:stretch;flex-direction:column}.button{width:100%}.material-card{padding:20px}.article-index{height:84px}.observation-key{grid-template-columns:1fr}.observation-key span{grid-column:1}.timer b{font-size:70px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.scope-line{font-size:8px}.next-link{padding:25px}.next-link b{font-size:26px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}