@charset "UTF-8";
:root{--paper:#f5f1e7;--card:#fffdf6;--ink:#243d3a;--muted:#5b6961;--green:#173d3b;--line:#d5d4c4;--accent:#a0442c;--gold:#dcb979;--pale:#e9edde;--serif:Georgia,'Times New Roman',serif;--sans:'Segoe UI',Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:auto;scroll-padding-top:24px}body{margin:0;color:var(--ink);font-family:var(--sans);background:var(--paper);background-image:radial-gradient(#a6ad9b26 .7px,transparent .7px);background-size:6px 6px;font-size:16px;line-height:1.6}button,input,a{touch-action:manipulation}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed}button{color:inherit}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,[tabindex='-1']:focus-visible{outline:3px solid #b95731;outline-offset:4px}button:disabled{opacity:.58}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.1}h1{font-size:clamp(42px,5.2vw,72px);letter-spacing:-2.8px;max-width:650px;margin-bottom:20px}h2{font-size:30px;letter-spacing:-.7px;margin-bottom:0}h3{font-size:24px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[hidden]{display:none!important}.skip-link{position:fixed;left:12px;top:-100px;background:var(--green);color:white;padding:10px 20px;z-index:20}.skip-link:focus{top:12px}.masthead{border-bottom:1px solid var(--line);background:#f8f5ed}.header-inner{max-width:1220px;margin:auto;padding:24px 40px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:13px;text-decoration:none;font:28px/1.1 var(--serif);letter-spacing:-.6px}.brand small{display:block;font:9px/1.5 var(--sans);letter-spacing:1.7px;margin-top:6px}.brand-mark{display:grid;place-items:center;background:var(--green);color:var(--paper);width:44px;height:44px;border-radius:50%;font:49px/.9 var(--serif);padding-bottom:6px}.header-inner nav{display:flex;align-items:center;gap:22px}.nav-button{border:0;background:none;padding:10px 0;font-size:13px;font-weight:600;border-bottom:2px solid transparent;min-height:44px}.nav-button.active{border-color:var(--accent)}main{max-width:1220px;margin:auto;padding:0 40px}.edition{display:flex;justify-content:space-between;gap:16px;padding:25px 0 21px;font-size:10px;letter-spacing:1.6px;color:var(--muted)}.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin:0 9px 1px 0}.hero{display:grid;grid-template-columns:1.25fr .85fr;gap:60px;align-items:center;min-height:308px;padding:4px 0 34px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:1.6px;margin-bottom:14px;color:var(--muted)}.hero .eyebrow{color:var(--accent)}.brief{font-size:16px;line-height:1.75;max-width:590px;margin-bottom:18px}.case-tags{display:flex;gap:8px 14px;flex-wrap:wrap;font-size:11px;color:var(--muted)}.case-tags span+span:before{content:'·';margin-right:14px}.mode-label{margin:16px 0 0;font-size:11px;text-transform:uppercase;letter-spacing:1.2px;font-weight:600}.case-art{position:relative;min-width:0;height:270px;display:grid;place-items:center}.case-art svg{width:100%;height:100%;overflow:visible}.prototype-note{display:flex;align-items:center;gap:16px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0;margin-bottom:36px}.note-number{font:27px var(--serif);color:var(--accent);border-right:1px solid var(--line);padding-right:16px}.prototype-note p{margin:0;font-size:12px;color:var(--muted)}.prototype-note strong{color:var(--ink);font-weight:600}.desk{display:grid;grid-template-columns:minmax(0,1.75fr) minmax(285px,1fr);gap:36px;align-items:start}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:14px}.section-heading .eyebrow{margin-bottom:8px}.read-count{font-size:11px;color:var(--muted);white-space:nowrap;padding-bottom:3px}.filter-row{display:flex;border-bottom:1px solid var(--line);gap:28px;margin-top:25px}.filter{background:none;border:0;border-bottom:2px solid transparent;font-size:13px;font-weight:600;padding:10px 0 12px;min-height:44px}.filter.active{border-bottom-color:var(--green)}.filter span{margin-left:6px;background:#e7e7db;padding:1px 6px;font-size:10px;border-radius:10px}.section-hint{font-size:11px;color:var(--muted);margin:13px 0}.clue-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.clue-card{position:relative;text-align:left;display:flex;flex-direction:column;align-items:start;background:var(--card);border:1px solid var(--line);padding:20px 16px 16px;min-height:222px;box-shadow:0 3px 0 #ded9c749;transition:transform .15s,border-color .15s}.clue-card:hover{transform:translateY(-3px);border-color:#80968a}.clue-card .card-icon{width:34px;height:34px;margin-bottom:21px;color:#6e7e70}.clue-card svg{width:32px;height:32px}.clue-card .card-tag{font-size:10px;letter-spacing:1px;color:var(--muted);margin-bottom:7px}.clue-card h3{font-size:20px;letter-spacing:-.3px;margin-bottom:9px}.clue-card p{font-size:13px;line-height:1.6;color:var(--muted);margin-bottom:20px}.card-bottom{display:flex;width:100%;align-items:center;justify-content:space-between;margin-top:auto;border-top:1px solid #e8e6dc;padding-top:10px;font-size:11px}.card-status{font-weight:600}.clue-card[data-read='true']{background:#f4f6ec}.clue-card[data-read='true'] .card-status{color:#45634b}.clue-card .initials{font:20px var(--serif);border:1px solid #aeb8a9;border-radius:50%;display:grid;place-items:center}.fair-play{font-size:12px;margin-top:22px;color:var(--muted)}.fair-play summary{cursor:pointer;min-height:44px;padding:9px 0}.fair-play p{border-left:2px solid var(--line);padding-left:15px;line-height:1.8;margin-bottom:0}.notebook{position:relative;background:var(--pale);padding:27px 26px 21px;border:1px solid #cdd2c0;border-top:3px solid #66806e}.notebook:after{content:'';position:absolute;left:16px;right:16px;bottom:-6px;border-bottom:1px solid #cdd2c0;height:4px;background:#e6e8dc}.notebook .eyebrow{font-size:9px}.notebook h2{font-size:29px}.notebook-intro{font-size:12px;color:var(--muted);margin:11px 0 19px}fieldset{border:0;margin:0;padding:0}.suspect-option{display:flex;align-items:center;gap:12px;cursor:pointer;padding:11px 12px;margin-bottom:8px;background:#f5f6ee;border:1px solid #d4d8c8;min-height:65px}.suspect-option:has(input:checked){background:#fffdf6;border-color:var(--green);box-shadow:inset 3px 0 var(--green)}input[type='radio']{accent-color:var(--green);width:17px;height:17px;margin:0;flex-shrink:0}.suspect-option strong{font-size:13px;font-weight:600;display:block;line-height:1.4}.suspect-option small{font-size:10px;color:var(--muted)}.submit-hint{font-size:10px;line-height:1.6;min-height:32px;margin:15px 0 10px}.primary-button{display:flex;justify-content:space-between;align-items:center;gap:15px;background:var(--green);border:1px solid var(--green);color:#fffdf4;padding:12px 16px;min-height:46px;font-size:12px;font-weight:600;line-height:1.4;text-align:left;width:100%}.primary-button:hover:not(:disabled){background:#26524b}.compact{width:auto}.save-status{font-size:10px;color:var(--muted);margin:17px 0 3px;line-height:1.5}.text-button{border:0;background:transparent;text-decoration:underline;text-underline-offset:4px;padding:8px 0;min-height:44px;font-size:11px}.reset-button{font-size:10px;color:var(--muted);min-height:36px}.closing-note{display:flex;justify-content:center;gap:27px;align-items:center;text-align:center;margin:55px 0 42px;color:var(--muted)}.closing-note p{font:14px/1.8 var(--serif);margin:0}.closing-note strong{font-weight:400;color:var(--ink)}footer{max-width:1140px;margin:0 auto;padding:20px 0 30px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:14px;align-items:center;font-size:10px;color:var(--muted)}footer a{font-weight:600}footer .text-button{font-size:10px}.notice{padding:15px 20px;border:1px solid var(--line);background:#fff4d9;margin:12px 0;font-size:13px}.practice-panel{background:#eeeee1;border:1px solid var(--line);padding:24px;margin-bottom:24px}.practice-panel>p{font-size:12px;margin:14px 0}.practice-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.practice-card{display:flex;flex-direction:column;align-items:start;text-align:left;border:1px solid var(--line);background:var(--card);padding:18px}.practice-card small{font-size:10px;color:var(--muted)}.practice-card strong{font:22px var(--serif);margin:10px 0}.practice-card span{font-size:11px}.solution{margin-top:32px;background:var(--card);border:1px solid var(--line);padding:30px 36px;border-top:3px solid var(--accent)}.solution h2{margin:9px 0 20px}.solution .verdict{font:21px/1.5 var(--serif);margin-bottom:25px}.solution ol{padding-left:25px;max-width:850px}.solution li{padding-left:10px;margin-bottom:22px;font-size:14px;line-height:1.8}.solution li::marker{color:var(--accent);font-family:var(--serif);font-size:23px}.citations{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}.citation{background:#eef0e6;border:1px solid #d4dbca;font-size:10px;padding:6px 9px;min-height:36px;text-align:left}.solution .exclusions{font-size:12px;border-top:1px solid var(--line);padding-top:20px;max-width:850px;color:var(--muted)}.result-seal{display:inline-block;border:2px solid var(--accent);color:var(--accent);font-size:11px;font-weight:700;letter-spacing:1.4px;padding:6px 12px;margin-bottom:15px}.completed-copy{font-size:13px;line-height:1.7;margin:4px 0 20px}dialog{background:var(--card);border:1px solid #a9b3a0;border-top:4px solid var(--green);color:var(--ink);max-width:600px;width:calc(100% - 32px);padding:26px 30px;max-height:85dvh;box-shadow:0 20px 100px #12363333;overflow:auto}dialog::backdrop{background:#19302bd9;backdrop-filter:blur(3px)}.dialog-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}.dialog-top .eyebrow{margin:0}.icon-button{background:none;border:1px solid var(--line);font-size:25px;line-height:1;width:44px;height:44px;flex-shrink:0}.clue-text{font-size:17px;line-height:1.85;margin:22px 0 30px}.dialog-bottom{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;gap:16px;align-items:center}.reviewed-label{font-size:11px;color:var(--muted)}#action-content{font-size:14px;line-height:1.8;margin:20px 0}#action-content ul,#action-content ol{padding-left:20px}#action-content li{margin-bottom:8px}.action-buttons{display:flex;justify-content:end;gap:14px;border-top:1px solid var(--line);padding-top:20px}.action-buttons .primary-button{width:auto}.secondary-button{border:1px solid var(--line);background:transparent;padding:10px 15px;font-size:12px;min-height:44px}.footnote{font-size:12px;color:var(--muted)}
@media(min-width:1350px){.header-inner{padding-top:28px;padding-bottom:28px}.hero{padding-top:12px;padding-bottom:38px}.case-art{height:285px}}
@media(max-width:1000px){.header-inner,main{padding-left:26px;padding-right:26px}.hero{gap:28px;grid-template-columns:1.2fr .8fr}.case-art{height:245px}.desk{gap:22px;grid-template-columns:minmax(0,1.4fr) minmax(275px,1fr)}.clue-grid{grid-template-columns:1fr}.clue-card{min-height:0;padding:15px 18px;display:grid;grid-template-columns:42px 1fr;column-gap:12px}.clue-card .card-icon{grid-row:1/4;margin:5px 0 0}.clue-card .card-tag,.clue-card h3,.clue-card p{grid-column:2}.clue-card h3{margin-bottom:5px}.clue-card p{margin-bottom:10px}.card-bottom{grid-column:2}.notebook{padding:23px 21px}footer{margin:0 26px;flex-wrap:wrap}h1{font-size:52px}}
@media(max-width:700px){.header-inner{padding:20px;align-items:start;gap:18px;flex-wrap:wrap}.brand{font-size:26px}.header-inner nav{gap:27px;width:100%;justify-content:flex-start}.nav-button{font-size:12px;padding:6px 0}.brand small{font-size:8px}.brand-mark{width:40px;height:40px}main{padding:0 20px}.edition{font-size:9px;letter-spacing:1px;padding:19px 0}.hero{grid-template-columns:1fr;gap:8px;padding-top:9px;padding-bottom:24px}.hero-copy{max-width:600px}.case-art{height:200px;max-width:330px;width:100%;margin:auto}.hero h1{font-size:47px;letter-spacing:-1.8px;margin-bottom:17px}.brief{font-size:15px;line-height:1.75}.case-tags{font-size:10px}.mode-label{font-size:10px;margin-top:12px}.prototype-note{margin-bottom:28px;align-items:start}.prototype-note p{font-size:11px;line-height:1.8}.note-number{font-size:25px;line-height:1.2}.desk{grid-template-columns:1fr;gap:30px}.clue-grid{grid-template-columns:1fr}.clue-card{padding:17px}.clue-card h3{font-size:22px}.clue-card p{font-size:12px}.section-hint,.read-count{font-size:11px}.filter-row{margin-top:20px}.notebook{padding:26px}.notebook .eyebrow{font-size:10px}.notebook-intro{font-size:13px}.suspect-option{min-height:70px}.suspect-option strong{font-size:14px}.suspect-option small{font-size:11px}.submit-hint,.save-status,.reset-button{font-size:11px}.primary-button{font-size:13px}.closing-note{margin:40px 0 30px}footer{margin:0 20px;padding-top:20px;display:flex;flex-direction:column;align-items:start;gap:5px}.practice-list{grid-template-columns:1fr}.practice-panel{padding:20px}.practice-panel .section-heading{align-items:start;flex-direction:column}.practice-card{width:100%}.solution{padding:24px 20px}.solution h2{font-size:28px}.solution .verdict{font-size:19px}dialog{padding:20px}.clue-text{font-size:16px}.dialog-bottom{align-items:start;flex-direction:column;gap:15px}.dialog-bottom .primary-button{width:100%}.action-buttons{flex-wrap:wrap}h2{font-size:28px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Selected fingerprint/keyhole wordmark, displayed unchanged on light paper. */
.brand-logo{display:block;width:260px;height:auto;max-width:100%;object-fit:contain}.brand:has(.brand-logo){flex-shrink:0}.brand:has(.brand-logo) small{margin-top:0;text-align:center}@media(max-width:700px){.brand-logo{width:250px}}