:root{color-scheme:dark;--bg:#101516;--surf:#171d1e;--line:#35403f;--text:#f3f3eb;--muted:#aab6b2;--orange:#ff946e;--mint:#b1d8c5;--mono:"IBM Plex Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;--sans:"Inter","Arial",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.55 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,select,summary{touch-action:manipulation}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--mint);outline-offset:4px}main:focus{outline:none}.shell{width:min(1240px,calc(100% - 112px));margin:auto}header{border-bottom:1px solid var(--line);background:#121718}.nav,.nav nav,.brand,.actions,.btn,.eyebrow,.figure-meta,.card-top,.card-link,.textlink,.footer-in,.section-row,.panel-title,.case-row,.benchfoot,.learn-strip{display:flex;align-items:center}.nav{min-height:77px;justify-content:space-between;gap:18px}.brand{gap:12px;font-size:21px;font-weight:730;letter-spacing:-1px}.brand em{font-style:normal;font-weight:420;color:#d1d8d3}.brandmark{width:33px;height:33px;border-radius:6px;background:var(--orange);display:flex;align-items:center;justify-content:center;gap:2px;position:relative}.brandmark:after{content:"";position:absolute;width:19px;height:3px;background:#202623}.brandmark i{width:3px;height:17px;background:#202623}.brandmark i:nth-child(2),.brandmark i:nth-child(3){height:10px}.nav nav{gap:31px;font-size:14px;color:#c5cdc8}.nav nav a:hover,.nav nav a[aria-current],.textlink:hover,.card-link,.reading a:hover,.back:hover{color:var(--orange)}.nav nav a.navbuild{display:flex;gap:14px;align-items:center;padding:8px 14px;border:1px solid #59635d;border-radius:5px;color:var(--text)}.navbuild span{color:var(--orange)}.skip{position:absolute;top:-100px}.skip:focus{top:4px;left:10px;background:#333;padding:8px;z-index:20}.hero{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:clamp(20px,4vw,68px);padding:clamp(47px,5.5vw,82px) 0 clamp(48px,4.8vw,72px)}.eyebrow,.tag,.figure-meta,.assembly figcaption,.status,.back,.panel-title,.footer-in span,.testlist code{font-family:var(--mono)}.eyebrow{font-size:11px;line-height:1.3;letter-spacing:1.7px;font-weight:600;color:var(--mint);gap:9px}.eyebrow i,.figure-meta b{width:7px;height:7px;display:inline-block;background:var(--mint);border-radius:1px}.hero h1{font-size:clamp(66px,6.9vw,102px);line-height:.95;letter-spacing:-.071em;margin:25px 0 23px;font-weight:660}.hero h1 em{color:var(--orange);font-weight:500;font-family:Georgia,"Times New Roman",serif;letter-spacing:-.065em}.hero-copy>p{color:#bcc6c1;max-width:475px;font-size:clamp(16px,1.4vw,20px);line-height:1.58;margin:0}.actions{gap:12px;flex-wrap:wrap;margin-top:30px}.btn,.textlink{justify-content:center;gap:10px;font-weight:625;line-height:1.25}.btn{border:1px solid transparent;border-radius:5px;min-height:44px;padding:11px 17px;font-size:14px}.btn.primary{color:#201b17;background:var(--orange)}.btn.primary:hover{background:#ffae8d}.ghost{background:transparent;border-color:#505b56;color:var(--text)}.ghost:hover,.navbuild:hover{background:#202827}.btn svg,.card-link svg,.textlink svg{width:17px;height:17px}.assembly{position:relative;border:1px solid #394342;background:#151c1d;border-radius:9px;padding:13px 14px 9px;margin:0;overflow:hidden;box-shadow:0 16px 40px -36px #000}.assembly:before{content:"";position:absolute;inset:15% 9%;background:radial-gradient(ellipse,#35454250,transparent 70%);pointer-events:none}.assembly img{position:relative;width:100%;display:block;height:auto;aspect-ratio:550/400}.figure-meta{justify-content:space-between;color:#aebbb4;font-size:10px;letter-spacing:1.25px;padding:1px 2px 10px}.figure-meta span:first-child{display:flex;align-items:center;gap:8px}.figure-meta b{width:6px;height:6px;border-radius:50%;background:var(--orange)}.figure-meta span+span{color:#94a29c}.assembly figcaption{border-top:1px solid var(--line);padding:9px 2px 1px;font-size:10px;letter-spacing:.6px;color:#acb9b2}.assembly figcaption span{color:var(--orange);margin-right:12px}.home-patterns,.learn-strip{border-top:1px solid var(--line);padding:35px 0 40px}.section-row{justify-content:space-between;gap:12px;margin-bottom:20px}.section-head h2{font-size:clamp(31px,3.4vw,48px);font-weight:575;letter-spacing:-.055em;line-height:1.07;margin:13px 0 0}.section-head p{max-width:720px;color:var(--muted);margin:14px 0 0;font-size:17px}.textlink{border:0;background:transparent;color:var(--text);font-size:14px;padding:0}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.pattern-card{display:flex;flex-direction:column;align-items:stretch;border:1px solid var(--line);border-radius:7px;padding:24px;background:linear-gradient(130deg,#1c2323,#171c1d);transition:border-color .2s,transform .2s}.pattern-card:hover{border-color:#ae806d;transform:translateY(-3px)}.card-top{justify-content:space-between}.iconbox,.bigicon{width:43px;height:43px;display:grid;place-items:center;background:#283431;border:1px solid #43554d;color:var(--mint);border-radius:8px}.pattern-card:nth-child(2) .iconbox{background:#302d27;color:#e6cba0;border-color:#574c3d}.pattern-card:nth-child(3) .iconbox{background:#302925;color:#f3ad87;border-color:#5d4539}.iconbox svg{width:23px;height:23px}.tag{text-transform:uppercase;color:#a7b1ab;letter-spacing:1px;font-size:10px}.pattern-card h3,.bench-head h3,.bench-empty h3{font-size:25px;font-weight:570;letter-spacing:-1px;line-height:1.18;margin:20px 0 8px}.pattern-card p,.lesson-body p,.bench-empty p,.bench-head p,.outcome p{color:var(--muted);margin:0;line-height:1.55}.pattern-card p{font-size:15px;flex:1}.card-link{gap:8px;font-size:13px;font-weight:580;margin-top:23px}.learn-strip,.footer-in{justify-content:space-between;gap:25px}.learn-strip .btn{flex:none}.learn-strip h2{font-size:33px}.learn-strip p{font-size:15px}.footer-in{min-height:75px;flex-wrap:wrap;font-size:13px}.footer-in span{font-size:11px;color:var(--muted)}footer{border-top:1px solid var(--line)}.footbrand{font-weight:650}main{min-height:calc(100vh - 153px)}.page{padding:26px 0 60px}.back{display:inline-block;color:#aeb9b2;font-size:12px;margin-bottom:27px}.page>.section-head{margin-bottom:26px}.page>.section-head h2{font-size:clamp(42px,5.4vw,72px)}.tip,.exercise{border-left:2px solid var(--mint);padding:14px 18px;color:var(--muted);background:#1a2220}.tip{margin-top:28px}.tip strong{color:var(--text)}.lesson-wrap,.builder-grid{display:grid;gap:18px;grid-template-columns:minmax(220px,.85fr) minmax(320px,1.8fr)}.lesson-list,.panel,.lesson-body{border:1px solid var(--line);background:var(--surf);border-radius:7px}.lesson-list{overflow:hidden;align-self:start}.lesson{display:flex;align-items:center;text-align:left;width:100%;gap:14px;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--muted);padding:13px 16px}.lesson:last-child{border:0}.lesson b{color:var(--mint);font-family:var(--mono)}.lesson span{margin-left:auto}.lesson.selected{color:var(--text);background:#29332f;box-shadow:inset 3px 0 var(--mint)}.lesson-body{padding:clamp(22px,4vw,50px)}.lesson-body h3{font-size:clamp(26px,3.4vw,46px);line-height:1.1;letter-spacing:-.05em;margin:22px 0 18px}.exercise{margin:22px 0}.exercise b{display:block;color:var(--mint);margin-bottom:5px}.lesson-body .textlink{justify-content:flex-start}.reading{margin-top:40px}.reading .section-head{margin-bottom:18px}.reading a{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}.reading a span{font-size:14px;color:var(--muted)}.builder-grid{grid-template-columns:minmax(280px,.85fr) minmax(360px,1.2fr);align-items:start}.panel{padding:24px}.panel-title{gap:9px;font-size:14px;color:var(--mint);padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:17px}label{font-size:13px;font-weight:650;display:block;margin:15px 0 6px}input,select,textarea{color:var(--text);width:100%;background:#111718;border:1px solid #48534f;padding:9px 11px;border-radius:4px;font-size:15px}textarea{resize:vertical}.fieldnote{color:var(--muted);font-size:12px;margin:8px 0 0}.wide{width:100%;margin-top:20px}.workbench{scroll-margin:14px}.bench-empty{min-height:386px;max-width:390px;margin:auto;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:12px}.bench-empty h3{margin:0}.bigicon{height:58px;width:58px}.bigicon svg{width:32px;height:32px}.bench-empty p{font-size:15px}.bench-head h3{margin:10px 0 6px}.bench-head p{font-size:14px;overflow-wrap:anywhere}.tabbar{display:flex;border-bottom:1px solid var(--line);margin:18px 0}.tabbar button{background:transparent;border:0;border-bottom:2px solid transparent;color:var(--muted);padding:9px 12px}.tabbar .on{color:var(--orange);border-color:var(--orange)}.case-row{gap:8px}.case-row .btn{white-space:nowrap}.outcome{display:flex;align-items:center;gap:12px;padding:15px 0}.outcome p{font-size:14px}.status{padding:4px 7px;border:1px solid #6c756d;border-radius:4px;color:var(--mint);font-size:11px;text-transform:uppercase}.held,.limited,.denied,.invalid{color:var(--orange);border-color:#9e725f}.trace{padding-left:26px;font:13px/1.7 var(--mono);color:var(--muted)}.trace span{font-family:var(--sans);margin-left:12px}.trace code,dd code{color:var(--text)}.benchfoot{gap:18px;border-top:1px solid var(--line);padding-top:17px;margin-top:18px;flex-wrap:wrap}.benchfoot .textlink{font-size:13px}.testlist>div{display:grid;grid-template-columns:1fr auto auto;gap:12px;padding:9px 0;border-bottom:1px solid var(--line);font-size:13px}.testlist code,.pass{color:var(--mint)}.fail{color:var(--orange)}.testtitle strong{color:var(--mint)}details{font-size:13px;color:var(--muted)}summary{cursor:pointer}pre{padding:12px;background:var(--bg);overflow:auto;max-height:280px;color:var(--mint)}dl{display:grid;grid-template-columns:90px 1fr;gap:9px;font-size:14px}dt{color:var(--muted)}dd{margin:0}#kit-status:empty{display:none}
@media(max-width:950px){.shell{width:calc(100% - 64px)}.hero{gap:24px}.pattern-card{padding:18px}.nav nav{gap:20px}.hero h1{font-size:68px}.hero-copy>p{font-size:16px}.panel{padding:18px}}
@media(max-width:800px){.hero{grid-template-columns:1fr 1fr;gap:18px}.hero h1{font-size:58px}.actions{gap:8px}.actions .btn{padding:10px 12px}.cards{gap:10px}.tag{font-size:9px}.builder-grid{grid-template-columns:1fr}.bench-empty{min-height:200px}.footer-in{gap:10px}.lesson-wrap{grid-template-columns:.8fr 1.3fr}}
@media(max-width:650px){.shell{width:calc(100% - 36px)}.nav{min-height:62px;gap:9px}.brand{font-size:17px;gap:7px}.brandmark{width:27px;height:29px}.nav nav{gap:10px;font-size:12px}.nav nav a:nth-child(2){display:none}.nav nav a.navbuild{padding:7px 9px;gap:5px}.hero{grid-template-columns:1fr;padding:39px 0 28px;gap:25px}.hero h1{font-size:clamp(63px,14vw,83px);margin:19px 0}.hero-copy>p{max-width:455px}.actions{margin-top:21px}.assembly{max-width:500px;width:100%}.assembly img{max-height:290px}.home-patterns{padding:26px 0}.section-row{align-items:flex-end}.section-row .textlink{font-size:12px;gap:4px}.section-row .textlink svg{width:14px}.cards{grid-template-columns:1fr}.pattern-card{padding:18px 19px}.pattern-card h3{margin-top:12px}.card-link{margin-top:12px}.learn-strip{display:block}.learn-strip .btn{display:inline-flex;margin-top:18px}.footer-in{padding:18px 0;min-height:64px}.footer-in span{order:3;width:100%}.eyebrow{font-size:10px}.lesson-wrap{grid-template-columns:1fr}.lesson-list{display:grid;grid-template-columns:1fr 1fr}.lesson{font-size:13px;padding:10px;gap:7px}.lesson span{display:none}.reading a{flex-direction:column;align-items:start;gap:2px}.benchfoot{gap:12px}.page{padding-top:16px}.section-head p{font-size:15px}}
@media(max-width:370px){.nav nav a:first-child{display:none}.section-row .textlink{max-width:80px}.trace span{display:block;margin:0}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
