:root{--ink:#172c38;--paper:#f6f4ec;--accent:#9d472d;--muted:#56646a;--line:#d8ddd6;--sage:#e4eadf;--success:#305943;font-family:Arial,"Nirmala UI","Mangal",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;line-height:1.7}
.overview-section{padding-top:48px;padding-bottom:64px;border-top:1px solid var(--line)}.overview-lead{max-width:770px;font-size:18px}.overview-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px 48px;margin-top:32px}.overview-grid article{min-width:0;border-top:1px solid var(--line);padding-top:23px}.overview-grid h3,.scope-note h3{font-size:18px;line-height:1.6}.overview-grid p,.scope-note p{font-size:15px}.overview-grid p:last-child,.scope-note p:last-child{margin-bottom:0}.scope-note{margin-top:35px;border-left:3px solid var(--accent);padding:22px 26px;background:#efece2}.scope-note .small{margin-top:15px}@media(max-width:760px){.overview-section{padding-top:35px;padding-bottom:42px}.overview-lead{font-size:16px}.overview-grid{grid-template-columns:1fr;gap:25px;margin-top:26px}.scope-note{padding:19px 20px;margin-top:28px}}@media print{.overview-section{padding-top:24px;padding-bottom:24px}.overview-grid{gap:22px}.overview-grid article,.scope-note{break-inside:avoid}}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:4px}a:hover{color:var(--accent)}button,select{font:inherit}button,a,select{touch-action:manipulation}button:focus-visible,a:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}[hidden]{display:none!important}.wrap{max-width:1130px;margin:0 auto;padding-left:36px;padding-right:36px}.site-header{display:flex;align-items:center;justify-content:space-between;padding-top:28px;padding-bottom:24px;border-bottom:1px solid var(--line);gap:22px}.wordmark{font-size:16px;font-weight:700;letter-spacing:2px;text-decoration:none}.wordmark span{display:block;font-size:11px;letter-spacing:.3px;font-weight:400;color:var(--muted)}nav{display:flex;gap:24px;align-items:center;font-size:13px}nav a{text-decoration:none}nav button{border:1px solid var(--line);border-radius:4px;padding:6px 12px;background:transparent;cursor:pointer;color:var(--ink)}.hero{padding-top:65px;padding-bottom:66px}.eyebrow{font-size:11px;letter-spacing:1.8px;font-weight:700;color:var(--accent);margin-bottom:22px}h1,h2{font-family:Georgia,"Nirmala UI","Mangal",serif;font-weight:400;letter-spacing:-1.1px;line-height:1.23;margin:0 0 22px}h1{font-size:46px;max-width:970px}h2{font-size:38px}h3{font-size:17px;margin-top:0;margin-bottom:15px}p{margin:0 0 19px}.byline{font-size:16px}.intro{max-width:770px;font-size:18px;margin-top:25px;margin-bottom:26px}.status-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 15px;font-size:12px;color:var(--muted)}.badge{padding:5px 11px;border:1px solid #c9b4a1;background:#f2e8dc;border-radius:4px;color:#6d402c}.actions{display:flex;align-items:center;gap:25px;flex-wrap:wrap;margin-top:28px}.button{background:var(--ink);color:#fff;display:inline-flex;gap:23px;justify-content:space-between;align-items:center;padding:12px 18px;border-radius:4px;font-size:14px;text-decoration:none;min-height:48px}.button:hover{background:var(--accent);color:#fff}.text-link{font-size:14px}.meta{font-size:11px;color:var(--muted);margin:16px 0 0}.puzzle-section{background:var(--sage);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:66px 0}.puzzle-layout{display:grid;grid-template-columns:1fr 1fr;gap:65px}.puzzle-layout p{font-size:15px}.conditions{padding-left:24px;font-size:14px}.conditions li{padding-left:5px;margin-bottom:10px}.small{font-size:12px!important;color:var(--muted)}.experiment{align-self:center;border:1px solid #c5cec4;border-radius:8px;background:#f9faf5;padding:26px;box-shadow:0 4px 14px #233d2910}.chooser{display:grid;grid-template-columns:1fr 94px;gap:12px;align-items:center;font-size:14px}.chooser select{background:#fff;border:1px solid #a8b7aa;border-radius:4px;padding:6px 8px;color:var(--ink);min-height:42px}.result{margin-top:23px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0}.result-head{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px}.verdict{font-size:11px;font-weight:700;color:var(--accent)}.verdict.pass{color:var(--success)}dl{font-size:13px;margin:16px 0 0}dl div{display:flex;justify-content:space-between;gap:12px;margin-top:8px}dd{margin:0;font-weight:700}details{margin-top:18px;font-size:12px}summary{cursor:pointer;min-height:32px}.table-scroll{overflow-x:auto}table{width:100%;border-collapse:collapse;margin-top:12px;font-size:11px;text-align:center;white-space:nowrap}td,th{padding:8px 6px;border-bottom:1px solid var(--line)}td.pass{background:#d2e6d7;color:var(--success);font-weight:700}caption{caption-side:bottom;font-size:10px;white-space:normal;text-align:left;color:var(--muted);padding-top:10px}.answer{display:flex;gap:21px;align-items:center;margin-top:23px;font-size:12px}.answer-number{font-family:Georgia,serif;font-size:33px;letter-spacing:-1px;color:var(--success);white-space:nowrap}.paper-section,.review-section{padding-top:64px;padding-bottom:64px;border-bottom:1px solid var(--line)}.two-columns{display:grid;grid-template-columns:1fr 1fr;gap:65px;margin-top:30px}.two-columns p{font-size:15px}.key-statement{border-left:3px solid var(--accent);padding-left:18px;margin-top:25px;font-weight:700}.paper-card{padding:25px 28px;background:#eaece5;border-radius:6px;max-width:380px;justify-self:end;width:100%;align-self:start}.document-label{font-size:11px;letter-spacing:2px;color:var(--accent)}.paper-card h3{font-family:Georgia,serif;font-size:25px;font-weight:400;margin:18px 0 8px}.paper-card .button{margin:0 0 18px;display:flex}.references{padding-top:35px;padding-bottom:35px;font-size:12px}.references ol{padding-left:18px}.references li{margin-bottom:8px}footer{display:flex;justify-content:space-between;align-items:end;gap:25px;border-top:1px solid var(--line);padding-top:25px;padding-bottom:30px;font-size:12px}footer div span{display:block;font-size:10px;color:var(--muted)}footer p{font-size:10px;color:var(--muted);margin:0}.skip{position:absolute;top:0;left:10px;padding:8px 16px;background:#fff;transform:translateY(-150%);z-index:5}.skip:focus{transform:none}@media(max-width:760px){.wrap{padding-left:23px;padding-right:23px}.site-header{padding-top:20px;align-items:flex-start;gap:14px}.wordmark{font-size:13px;letter-spacing:1.5px}.wordmark span{font-size:9px;max-width:150px}nav{gap:12px;font-size:11px}nav a:first-child{display:none}nav button{font-size:11px;padding:5px 10px}.hero{padding-top:42px;padding-bottom:45px}h1{font-size:32px;letter-spacing:-.8px}h2{font-size:30px;letter-spacing:-.6px}.intro{font-size:16px}.eyebrow{font-size:10px;margin-bottom:18px}.status-row{align-items:flex-start;flex-direction:column;font-size:11px}.actions{gap:18px;margin-top:25px}.puzzle-layout,.two-columns{grid-template-columns:1fr;gap:26px}.puzzle-section{padding:42px 0}.experiment{padding:20px}.paper-section,.review-section{padding-top:43px;padding-bottom:43px}.paper-card{max-width:none;justify-self:stretch;padding:22px}.two-columns{margin-top:24px}footer{flex-direction:column;align-items:flex-start;gap:13px}.answer-number{font-size:30px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{nav,.actions,.chooser,details,.skip{display:none}.hero,.paper-section,.review-section,.puzzle-section{padding-top:24px;padding-bottom:24px}.puzzle-layout,.two-columns{gap:25px}h1{font-size:30px}h2{font-size:24px}.button{color:#000;background:none;border:1px solid #aaa}.wrap{max-width:none;padding-left:0;padding-right:0}}

/* Keep the existing layout usable with touch, zoom and long translated labels. */
nav a,nav button{display:inline-flex;align-items:center;justify-content:center;min-height:44px}
nav a{padding:4px 2px}
.chooser select{min-height:44px;max-width:100%}
.chooser select:disabled{opacity:1;color:var(--muted);cursor:default}
summary{display:list-item;min-height:44px;padding:10px 0}
.result-head,dl div{flex-wrap:wrap}
.result-head strong,dd{overflow-wrap:anywhere}
.experiment,.paper-card,.puzzle-layout>div,.two-columns>div{min-width:0}
.no-script{margin-top:16px;padding:14px;border-left:3px solid var(--accent);background:var(--paper);font-size:13px}
.no-script p:last-child{margin-bottom:0}
@media(max-width:760px){.site-header{flex-wrap:wrap}.site-header nav{flex-wrap:wrap;gap:8px 14px;justify-content:flex-start}.site-header nav a:first-child{display:inline-flex}.site-header nav button{padding:8px 12px;min-width:76px}.result-head{align-items:flex-start;gap:8px}.verdict{font-size:12px}.chooser{grid-template-columns:minmax(0,1fr) 94px}}