:root{--paper:#f5f3ec;--ink:#20281f;--muted:#666d60;--line:#d9ddd0;--green:#2d4c39;--white:#fffef9;--red:#9a513e;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:wait}:focus-visible{outline:2px solid var(--green);outline-offset:4px}[hidden]{display:none!important}
body>header{height:100px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;margin:0 5%;gap:30px}.wordmark{display:flex;align-items:center;gap:14px;font-size:15px;font-weight:700;letter-spacing:1.5px}.mark{font-family:Georgia,serif;font-size:36px;line-height:36px;border-right:1px solid var(--line);padding-right:18px}nav{display:flex;gap:36px;font-size:13px;align-items:center}.nav-access{border:1px solid var(--line);padding:12px 16px}main{max-width:1600px;margin:auto}
.hero{padding:76px 5% 66px;display:grid;grid-template-columns:1.4fr 1fr;gap:70px;align-items:center}.eyebrow{font-family:monospace;font-size:11px;letter-spacing:1.4px;line-height:1.6;text-transform:uppercase}.dot{display:inline-block;width:7px;height:7px;background:var(--green);border-radius:50%;margin-right:8px}h1,h2,h3,p{margin-top:0}h1{font-family:Georgia,'Times New Roman',serif;font-weight:400;font-size:clamp(40px,4.1vw,68px);line-height:1.07;letter-spacing:-2px;margin-bottom:25px}h1 em{font-weight:400;color:var(--green)}.hero .eyebrow{margin-bottom:24px}.intro{font-size:17px;line-height:1.7;color:#62685e;max-width:600px}.hero .intro{margin-bottom:30px}
.primary{background:var(--green);color:white;padding:16px 21px;display:inline-flex;justify-content:space-between;gap:35px;border:1px solid var(--green);font-size:13px}.primary:hover{background:#203a29}.text-link{display:inline-block;font-size:12px;margin:18px 0 18px 24px;border-bottom:1px solid var(--line);padding-bottom:3px}
.specimen{background:#eceee3;border:1px solid #ccd1c1;padding:24px;transform:none}.specimen-head{display:flex;justify-content:space-between;font-family:monospace;font-size:10px;letter-spacing:1px;padding-bottom:23px;border-bottom:1px solid #c9cebf}.trace{padding:18px 0;border-bottom:1px solid #c9cebf;display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center}.trace>span{grid-column:1/-1;color:#777e70;font:10px monospace;letter-spacing:1px}.trace code{font-size:13px}.trace b{font-family:monospace;font-size:12px;padding:5px 8px;border:1px solid currentColor;font-weight:400}.bad{color:var(--red)}.good{color:#30603d}.specimen>p{font:13px/1.7 Georgia,serif;margin:23px 0 14px}.specimen>a{font-size:11px}
.stats{margin:0 5%;border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr);padding:24px 0}.stats>div{border-right:1px solid var(--line);padding:0 30px;display:flex;gap:15px;align-items:center}.stats>div:first-child{padding-left:0}.stats>div:last-child{border:0}.stats strong{font-family:Georgia,serif;font-size:38px;font-weight:400}.stats span{font-size:12px;color:var(--muted);max-width:110px;line-height:1.6}
.archive{margin:70px 5%}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:25px;margin-bottom:25px}h2{font-family:Georgia,serif;font-weight:400;font-size:30px;letter-spacing:-.5px;margin-bottom:0}.muted{color:var(--muted)}.section-heading h2 .muted{font-size:20px}.pill{display:inline-block;font:10px monospace;border:1px solid var(--line);padding:7px 10px;white-space:nowrap}.filterbar{display:flex;align-items:center;gap:26px;border-block:1px solid var(--line);padding:15px 0;font-size:12px}.filterbar input{background:transparent;border:none;flex:1;min-width:100px;padding:10px;font-size:13px}.filterbar select{background:transparent;border:1px solid var(--line);padding:8px;margin-left:10px;color:var(--ink)}
.table-heading,.case-row{display:grid;grid-template-columns:85px minmax(0,1fr) 110px 100px 18px;gap:20px;align-items:center}.table-heading{font:10px monospace;letter-spacing:1px;color:var(--muted);padding:20px 0 12px}.case-row{border-bottom:1px solid var(--line);padding:24px 0;transition:background .15s}.case-row:hover{background:#edf0e4}.case-row h3{font-size:15px;font-weight:500;margin:0 0 7px}.case-row p{font-size:12px;color:var(--muted);margin:0;line-height:1.5}.mono{font-family:monospace;font-size:11px}.category{font-size:11px}.access{font:10px monospace}.access.public{color:var(--green)}.access.private{color:var(--muted)}.row-arrow{color:var(--muted)}
.method-strip{margin:0 5% 60px;padding:40px;background:#e9ecdf;border:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:15px 40px}.method-strip>.eyebrow{grid-column:1/-1;margin:0}.method-strip h2{font-size:34px;max-width:380px}.method-strip>p:not(.eyebrow){font-size:13px;line-height:1.8;max-width:500px;margin:0}.method-strip>a{font-size:12px;justify-self:start}
footer{border-top:1px solid var(--line);margin:0 5%;padding:26px 0;display:flex;justify-content:space-between;gap:30px;font-size:10px;color:var(--muted);line-height:1.7}footer>span:first-child{color:var(--ink)}.case-detail{max-width:1050px;margin:60px auto;padding:0 30px}.back{font-size:12px;color:var(--muted);display:inline-block;margin-bottom:40px}.case-detail h1{max-width:850px;font-size:53px}.case-meta{border-block:1px solid var(--line);display:flex;gap:22px;align-items:center;padding:17px 0;font-size:11px;margin:30px 0}.case-meta a{text-decoration:underline}.case-explanation{display:grid;grid-template-columns:1fr 1fr;gap:50px;padding:25px 0}.case-explanation p{line-height:1.8;font-size:14px}.case-explanation .eyebrow{font-size:10px}
.implementation{margin:40px 0}.implementation h2{font-size:26px}pre{background:#e9ecdf;border:1px solid var(--line);padding:24px;font:12px/1.8 monospace;overflow:auto;tab-size:4;max-width:100%}table{border-collapse:collapse;width:100%;font-size:12px}th{text-align:left;font:10px monospace;text-transform:uppercase;color:var(--muted)}th,td{padding:12px;border-bottom:1px solid var(--line)}.hash{overflow-wrap:anywhere;color:var(--muted);font-size:10px;line-height:1.8}.provenance{margin-top:60px;border-top:1px solid var(--line);padding-top:30px}.provenance p,.locked p{font-size:13px;line-height:1.8;margin-top:20px}.locked{padding:40px;background:#e9ecdf;border:1px solid var(--line);margin-top:40px}.secondary{padding:9px 13px;background:transparent;color:var(--ink);border:1px solid #bdc5b4;font-size:11px}.locked .secondary{margin-left:15px}.essay{max-width:820px;margin:70px auto;padding:0 30px}.essay h2{margin:36px 0 15px}.essay p:not(.eyebrow){line-height:1.9;color:#646b5e;font-size:15px}.essay a{text-decoration:underline}
.login-card{max-width:560px;margin:110px auto 150px;border:1px solid var(--line);padding:45px;background:var(--white)}.login-card h1{font-size:46px}.login-card p{font-size:13px;line-height:1.8;color:var(--muted)}.login-card label{display:block;font-size:12px;margin:25px 0 10px}.login-card input{padding:14px;background:var(--paper);border:1px solid var(--line);width:100%;margin-bottom:20px}.login-card .primary{width:100%}
@media(min-width:1600px){body>header,footer{max-width:1440px;margin:auto}}
@media(max-width:1000px){.hero{gap:35px}.hero h1{font-size:48px}.specimen{padding:20px}.specimen-head{font-size:8px}.stats>div{padding:0 15px;gap:10px}.stats strong{font-size:32px}.table-heading,.case-row{grid-template-columns:65px minmax(0,1fr) 80px 80px 12px;gap:12px}}
@media(max-width:700px){body>header{height:80px}.wordmark{font-size:12px;gap:8px}.mark{font-size:28px;padding-right:10px}nav{gap:14px;font-size:11px}nav>a:nth-child(2){display:none}.nav-access{padding:9px}.hero{grid-template-columns:1fr;padding-top:45px;gap:30px}.hero h1{font-size:45px}.intro{font-size:15px}.hero .text-link{margin-left:15px}.specimen{transform:none}.stats{grid-template-columns:1fr 1fr;gap:20px;padding:20px 0}.stats>div:nth-child(2){border:0}.stats>div:nth-child(3){padding-left:0}.archive{margin-top:45px}.section-heading{align-items:flex-start}.section-heading>.pill{display:none}h2{font-size:26px}.filterbar{flex-wrap:wrap;gap:10px}.filterbar input{flex-basis:100%}.filterbar>#case-count{margin-left:auto}.table-heading{display:none}.case-row{grid-template-columns:55px 1fr 20px;gap:10px}.case-row h3{font-size:14px}.case-row .category{display:none}.case-row .access{grid-column:2;grid-row:2}.row-arrow{grid-column:3;grid-row:1}.case-row p{font-size:11px}.method-strip{display:block;padding:25px}.method-strip h2{font-size:30px;margin:18px 0}.method-strip>a{display:inline-block;margin-top:18px}footer{flex-direction:column;gap:12px}.case-detail{margin-top:35px;padding:0 5%}.case-detail h1{font-size:38px}.case-meta{flex-wrap:wrap;gap:12px}.case-explanation{grid-template-columns:1fr;gap:20px}.implementation h2{font-size:22px}pre{padding:15px;font-size:11px}table{font-size:10px}th,td{padding:9px 5px}.locked{padding:25px}.locked .secondary{margin:15px 0 0}.essay{margin-top:40px}.login-card{margin:50px 5% 80px;padding:30px}.investigation{padding:18px}summary{flex-wrap:wrap;gap:8px}summary .mono{flex-basis:100%}}

/* Keyboard navigation and responsive refinements. */
.visually-hidden,.skip-link:not(:focus){position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link:focus{position:fixed;top:10px;left:10px;z-index:100;background:var(--green);color:#fff;padding:14px}.secondary:hover:not(:disabled){background:#e6eadc}.secondary:disabled{opacity:.5;cursor:not-allowed}.primary:disabled{opacity:.6}a:hover.text-link,a:hover.back{color:var(--green)}.essay h1{font-size:clamp(42px,5vw,66px)}.implementation table{table-layout:fixed}.implementation td{overflow-wrap:anywhere}.implementation td:first-child{width:40%}.case-row:focus-visible{outline-offset:2px}.case-detail .section-heading .pill{display:inline-block}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media(max-width:700px){body>header{height:auto;min-height:110px;flex-wrap:wrap;gap:16px;padding-block:18px}body>header nav{width:100%;justify-content:space-between}body>header nav>a:nth-child(2){display:block}.hero h1{font-size:clamp(36px,9vw,48px)}.hero .primary{padding:15px 17px}.hero .text-link{margin-left:0;display:block;width:max-content}.trace code{font-size:12px}.essay{padding-inline:5%}}
.case-context{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:25px 40px;border-block:1px solid var(--line);padding:25px 0;margin:15px 0 35px}.case-context h2{font:11px/1.6 monospace;letter-spacing:1px;text-transform:uppercase;margin:0 0 12px}.case-context p{font-size:14px;line-height:1.8;margin:0;overflow-wrap:anywhere}.locked .case-context{margin-top:25px}.locked .case-context p{font-size:13px;margin-top:0}

/* Contact form. */
.contact-page{max-width:820px;margin:70px auto;padding:0 30px}.contact-heading{margin-bottom:32px}.contact-heading h1{font-size:clamp(38px,5vw,56px)}.contact-heading .intro{font-size:15px;margin-bottom:0}.contact-form{position:relative;background:var(--white);border:1px solid var(--line);padding:32px}.contact-fields{display:grid;grid-template-columns:1fr 1fr;gap:24px}.contact-field{min-width:0}.contact-wide{grid-column:1/-1}.contact-field label{display:block;font-size:12px;margin-bottom:9px}.contact-field input,.contact-field textarea{display:block;width:100%;border:1px solid var(--line);border-radius:0;background:var(--paper);color:var(--ink);padding:12px 14px;font:inherit;font-size:14px;line-height:1.6}.contact-field textarea{resize:vertical;min-height:170px}.contact-field [aria-invalid="true"]{border-color:var(--red)}.contact-note{font-size:11px;color:var(--muted);line-height:1.7;margin:0 0 22px}.contact-privacy{margin:24px 0 20px}.contact-field-error{font-size:12px;line-height:1.6;color:var(--red);margin:8px 0 0;overflow-wrap:anywhere}.contact-errors{border:1px solid var(--red);background:#f3ebe1;padding:20px 24px;margin-bottom:24px;font-size:13px;line-height:1.7;overflow-wrap:anywhere}.contact-errors h2{font-family:inherit;font-size:15px;font-weight:500;letter-spacing:0;margin:0 0 10px}.contact-errors p{margin:0}.contact-errors ul{margin:8px 0 0;padding-left:20px}.contact-errors a,.contact-success a{text-decoration:underline;text-underline-offset:3px}.contact-success{background:#e9ecdf;border:1px solid var(--line);padding:32px}.contact-success p{font-size:14px;line-height:1.8;margin:18px 0}.contact-success a{font-size:12px}.contact-form .contact-trap{position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}
@media(max-width:700px){.contact-page{margin:40px auto;padding-inline:5%}.contact-heading{margin-bottom:25px}.contact-form,.contact-success{padding:24px}.contact-fields{grid-template-columns:1fr;gap:20px}.contact-form .primary{width:100%}.contact-errors{padding:18px 20px}}
.filter-submit{background:transparent;border:1px solid var(--line);padding:8px 14px;color:var(--ink);font-size:12px;cursor:pointer}.filter-submit:hover{background:#e6eadc}.pager{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;margin-top:32px;padding:16px 20px;border:1px solid var(--line);background:var(--white);font-size:13px}.pager-link{justify-self:start;padding:9px 16px;border:1px solid var(--line);background:var(--paper,transparent);white-space:nowrap}.pager-link.next{justify-self:end}.pager-link.disabled{visibility:hidden}.pager-status{color:var(--muted);font-size:12px;letter-spacing:.5px;text-align:center}.sample-note{display:flex;gap:16px;align-items:baseline;margin-top:24px;padding:16px 20px;border:1px solid var(--line);border-left:3px solid var(--green);background:var(--white)}.sample-note-label{flex:none;font-family:monospace;font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--green)}.sample-note p{margin:0;font-size:14px;line-height:1.6;color:var(--muted)}@media(max-width:700px){.pager{padding:12px;gap:10px}.pager-link{padding:8px 10px}.sample-note{flex-direction:column;gap:6px}}.pager a:hover{color:var(--green);border-color:var(--green)}#no-cases{padding:24px 0}