@font-face{font-family:ArchiveSans;src:local('Segoe UI');font-display:swap}
:root{--ink:#242b29;--muted:#606962;--line:#d3d6cd;--paper:#f4f1e8;--accent:#37514b;--serif:Georgia,'Times New Roman',serif;--sans:ArchiveSans,'Segoe UI',Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:2rem}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 var(--sans)}a{color:inherit;text-underline-offset:4px}a:hover{color:var(--accent)}button,input,select,textarea{font:inherit}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:10px 20px;border:1px solid var(--accent);background:var(--accent);color:white;text-decoration:none;cursor:pointer;border-radius:2px;font-weight:600;font-size:14px;letter-spacing:.02em}button:hover,.button:hover{filter:brightness(.93);color:white}.button.secondary,button.secondary{background:transparent;color:var(--accent)}button:disabled{opacity:.55;cursor:wait}:focus-visible{outline:3px solid #cc792a;outline-offset:5px}.skip{position:absolute;top:-100px;left:16px;z-index:10}.skip:focus{top:12px;background:var(--paper);padding:12px}img{max-width:100%;height:auto;display:block}figure{margin:2rem 0}figcaption,.caption{font:12px/1.5 var(--sans);color:var(--muted);margin-top:12px}.wrap{width:min(1240px,calc(100% - 96px));margin:auto}.masthead{padding:24px 0;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--ink);max-width:360px}.brand-mark{width:40px;height:40px;flex:none;border:1px solid var(--accent);border-radius:50%;display:grid;place-items:center;font:24px var(--serif);color:var(--accent)}.brand-name{font:600 19px/1.2 var(--sans);letter-spacing:-.025em}.brand small{display:block;font:10px/1.8 var(--sans);letter-spacing:.13em;text-transform:uppercase;margin-top:4px;color:var(--muted)}nav{display:flex;gap:25px;align-items:center;flex-wrap:wrap;font:13px var(--sans)}nav a{text-decoration:none}nav a.active{border-bottom:1px solid var(--accent)}.eyebrow{font:11px/1.6 var(--sans);letter-spacing:.17em;text-transform:uppercase;color:var(--accent);font-weight:600}.hero{display:grid;grid-template-columns:.95fr 1.05fr;align-items:center;gap:60px;padding:60px 0 42px}.hero h1{font:normal clamp(42px,4.8vw,72px)/1.06 var(--serif);letter-spacing:-.045em;margin:23px 0}.hero .deck{color:var(--muted);font-size:18px;max-width:530px;line-height:1.6}.hero-media img{width:100%;height:440px;object-fit:cover}.hero-media{margin:0}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.edition{display:flex;gap:20px;font-size:11px;letter-spacing:.1em;text-transform:uppercase;border-top:1px solid var(--line);padding:20px 0;color:var(--muted)}.sound-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0;display:grid;grid-template-columns:1fr 1.8fr;align-items:center;gap:32px}.sound-strip h2{font:normal 23px/1.3 var(--serif);margin:5px 0}.sound-strip audio{width:100%;height:44px}.sound-strip p{font-size:13px;color:var(--muted);margin:4px 0}.wave{display:flex;gap:4px;height:35px;align-items:center}.wave i{display:block;background:var(--accent);width:2px;height:var(--height);opacity:.55}.section-top{display:flex;justify-content:space-between;align-items:baseline;gap:20px;margin-bottom:24px}.section-top h2{font:normal 32px/1.15 var(--serif);letter-spacing:-.02em;margin:0}.section-top a{font-size:13px}.features{padding:54px 0;display:grid;grid-template-columns:1.45fr 1fr;gap:70px;border-bottom:1px solid var(--line)}.features h2{font:normal 38px/1.15 var(--serif);letter-spacing:-.03em;margin:10px 0 20px}.features p{color:var(--muted)}.field-card{border-left:1px solid var(--line);padding-left:34px}.field-card h3{font:normal 23px/1.25 var(--serif)}.card-index{font:11px var(--sans);letter-spacing:.1em;color:var(--accent)}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.card{border-top:1px solid var(--line);padding-top:22px}.card h3{font:normal 25px/1.2 var(--serif);margin:12px 0}.card p{color:var(--muted);font-size:14px}.card a{text-decoration:none}.card img{width:100%;height:200px;object-fit:cover}.discover{padding:52px 0}.notice{padding:18px 22px;background:color-mix(in srgb,var(--accent) 6%,var(--paper));border-left:2px solid var(--accent);font-size:14px;margin:25px 0}.footnote{font:13px/1.7 var(--serif);color:var(--muted);margin-top:30px}.footnote a{font-family:var(--sans);font-size:12px}.site-footer{margin-top:55px;border-top:1px solid var(--line);padding:28px 0 40px;display:flex;justify-content:space-between;gap:30px;font-size:12px;color:var(--muted)}.footer-links{display:flex;gap:20px;flex-wrap:wrap;align-items:flex-start}.site-footer p{margin:0}.crumb{font-size:12px;color:var(--muted);margin:32px 0 20px}.article-header{max-width:900px;padding:10px 0 32px;border-bottom:1px solid var(--line)}.article-header h1{font:normal clamp(34px,4vw,54px)/1.1 var(--serif);letter-spacing:-.035em;margin:15px 0}.article-header p{font-size:18px;color:var(--muted)}.article-layout{display:grid;grid-template-columns:minmax(0,790px) 230px;gap:70px;padding:35px 0}.prose{min-width:0}.prose p{margin:0 0 1.3em}.prose h2{font:normal 31px/1.2 var(--serif);margin:1.5em 0 .65em}.prose h3{font:normal 24px/1.25 var(--serif);margin:1.3em 0 .5em}.prose h4{margin:1.5em 0 .5em}.prose img{max-height:500px;object-fit:contain;margin:auto}.prose section,.prose article{margin:0 0 28px}.prose ul,.prose ol{padding-left:25px}.prose li{margin:8px 0}.prose blockquote{border-left:2px solid var(--accent);margin:25px 0;padding:8px 25px;color:var(--muted)}.aside{font-size:13px;color:var(--muted)}.aside h2{font-size:11px;letter-spacing:.13em;text-transform:uppercase;margin:0 0 15px;color:var(--accent)}.aside a{display:block;margin-bottom:14px}.aside .aside-note{border-top:1px solid var(--line);margin-top:25px;padding-top:20px}.table-wrap{overflow-x:auto;margin:24px 0}table{border-collapse:collapse;width:100%;font-size:14px;text-align:left}th,td{padding:13px 15px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--accent);font-size:12px;background:color-mix(in srgb,var(--accent) 5%,var(--paper))}pre{font:13px/1.7 Consolas,monospace;padding:22px;background:color-mix(in srgb,var(--accent) 7%,var(--paper));overflow-x:auto;white-space:pre-wrap;overflow-wrap:anywhere}code{font:13px Consolas,monospace}details{border-top:1px solid var(--line);padding:16px 0;margin:12px 0}summary{cursor:pointer;font-weight:600}details p{margin:15px 0!important}input,select,textarea{padding:11px;border:1px solid #9baba5;background:var(--paper);color:var(--ink);border-radius:2px;max-width:100%;min-width:0}textarea{width:100%;min-height:180px}label{display:block;font-size:13px;margin:15px 0 8px}form{margin:20px 0}output{display:block;margin:15px 0}audio{max-width:100%}.sound-card{padding:24px 0;border-bottom:1px solid var(--line)}.sound-card h2{margin:8px 0}.sound-card audio{width:100%;margin:14px 0}.sound-card p{font-size:15px}.text-link{font-size:13px}.error{color:#962f23}.status{min-height:1.7em;font-size:14px;margin:12px 0}.success{color:#35653f}.record-tabs{display:flex;gap:12px;flex-wrap:wrap;margin:25px 0}.record-tabs a{padding:8px 14px;border:1px solid var(--line);text-decoration:none;font-size:12px}.record-tabs a.active{background:var(--accent);color:white}.record-paper{padding:32px;border:1px solid var(--line);background:color-mix(in srgb,white 50%,var(--paper));box-shadow:3px 4px 0 color-mix(in srgb,var(--accent) 9%,transparent)}.search-row{display:flex;gap:10px;max-width:650px}.search-row input{flex:1}.search-results a{display:block;padding:16px 0;border-bottom:1px solid var(--line)}.catalogue{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:30px 0}.product{border:1px solid var(--line);padding:22px}.product img{height:150px;width:100%;object-fit:cover}.product h2{font-size:23px}.product .price{font:13px var(--sans);color:var(--accent)}.empty{padding:25px;border:1px dashed var(--line)}.tag{font-size:10px;text-transform:uppercase;letter-spacing:.1em;background:color-mix(in srgb,var(--accent) 8%,var(--paper));padding:4px 8px}.reading{font-family:var(--serif)}
/* Independent editorial treatments share only accessible primitives. */
.reference .masthead{align-items:flex-end}.reference .brand-name{font:normal 26px var(--serif)}.reference .hero{grid-template-columns:1.2fr .8fr}.reference .hero-media img{height:400px;filter:saturate(.65)}.reference .edition{border-bottom:1px solid var(--line)}
.institute .brand-mark{border-radius:0}.institute h1{font-family:var(--sans);font-weight:350;letter-spacing:-.055em}.institute .hero-media{border-bottom:6px solid var(--accent)}.institute .eyebrow{font-family:Consolas,monospace}.institute .field-card{border:1px solid var(--line);padding:25px}
.magazine .brand-name{font:italic 33px var(--serif)}.magazine .hero-media{order:-1}.magazine .hero{grid-template-columns:1.15fr .85fr}.magazine .hero h1{font-size:clamp(45px,4.5vw,69px)}.magazine .hero-media img{height:480px}.magazine .cards .card:first-child{border-color:var(--accent)}
.supply h1{font:750 clamp(40px,4.6vw,68px)/1.02 var(--sans);text-transform:uppercase;letter-spacing:-.045em}.supply .masthead{border-bottom:3px solid var(--ink)}.supply .brand-mark{border-radius:0;background:var(--accent);color:white;border:0}.supply .button,.supply button{border-radius:0}.supply .edition{background:var(--ink);color:var(--paper);padding:15px 20px}.supply .card h3{font-family:var(--sans);font-weight:650}
.nursery .masthead{border-bottom:0}.nursery .hero{grid-template-columns:1fr 1fr;padding-top:35px}.nursery .hero-media img{border-radius:220px 220px 4px 4px;height:500px}.nursery h1{font-style:italic}.nursery .brand-name{font-family:var(--serif);font-weight:normal;font-size:26px}.nursery .button{border-radius:24px}
.heritage .masthead{flex-direction:column;gap:20px;padding:25px 0}.heritage .brand{max-width:none}.heritage .brand-name{font:bold 30px/1.1 var(--serif)}.heritage .hero h1{font-weight:bold}.heritage .hero-media{padding:8px;border:1px solid var(--accent)}.heritage .hero-media img{height:410px}.heritage .edition{border-bottom:3px double var(--accent)}
.forum{--serif:var(--sans)}.forum .hero{grid-template-columns:1.4fr .6fr;gap:35px}.forum .hero h1{font-size:52px;font-weight:650;line-height:1.1}.forum .hero-media img{height:290px;border-radius:6px}.forum .brand-mark{background:var(--accent);color:white}.forum .card,.forum .field-card{background:#fff;border:1px solid var(--line);border-radius:5px;padding:24px}.forum .card h3{font-size:21px;font-weight:600}.forum .sound-strip{background:white;padding:20px;border:1px solid var(--line);border-radius:5px}
.collection{--ink:#ece7dc;--muted:#b9b6aa;--line:#4c4e43;--paper:#222a27}.collection .masthead{flex-direction:column;gap:22px}.collection .brand-name{font:normal 26px var(--serif);letter-spacing:.04em}.collection .brand small{text-align:center}.collection .hero-media{order:-1}.collection .hero{grid-template-columns:1.15fr .85fr}.collection .hero h1{font-size:clamp(42px,4.5vw,67px)}.collection .hero-media img{height:490px}.collection button,.collection .button{color:#fff}.collection .record-paper{background:#303831}.collection input,.collection textarea{background:#303831}.collection .footnote{color:#c5bdad}
.journal .wrap{max-width:1130px}.journal .brand-name{font:italic 26px var(--serif)}.journal .hero{grid-template-columns:1fr .8fr;gap:55px}.journal .hero-media{transform:rotate(1.5deg);padding:10px 10px 32px;background:#fff;box-shadow:0 7px 20px #34251612}.journal .hero-media img{height:380px}.journal .hero h1{font-size:clamp(40px,4.5vw,62px)}.journal .hero .deck{font-family:var(--serif)}.journal .features{grid-template-columns:1.4fr .8fr}.journal .prose{font-family:var(--serif);font-size:18px}
.waveform,.sound-video{display:block;width:100%;height:auto;margin:18px 0}.compare-controls{display:flex;flex-wrap:wrap;gap:16px;align-items:end}.compare-controls label{display:grid;gap:5px;flex:1;min-width:150px}.compare-controls select{max-width:100%;width:100%}.prose textarea{width:100%;box-sizing:border-box}.prose iframe{width:100%;max-width:100%}.sound-video{background:#202c25}.prose .sound-card audio{width:100%}
/* Notebook and reader */
.case-intro{max-width:820px}.case-toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:25px 0}.case-progress{height:4px;background:var(--line);margin:20px 0}.case-progress i{display:block;background:var(--accent);height:100%;transition:width .3s}.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.case-item{padding:24px;border:1px solid var(--line);background:color-mix(in srgb,white 45%,var(--paper));display:flex;flex-direction:column;align-items:flex-start}.case-item h3{font:normal 23px/1.2 var(--serif);margin:12px 0}.case-item button{margin-top:auto}.case-item p{font-size:13px;color:var(--muted)}.case-item.solved{border-top:3px solid var(--accent)}.case-layer{padding:26px 0}.case-layer h2{font:normal 31px var(--serif)}.case-detail{max-width:900px;margin:35px auto}.case-detail .question{font:normal 25px/1.4 var(--serif)}.answer-row{display:flex;gap:12px}.answer-row input{flex:1}.hints{margin:22px 0}.hint{border-left:2px solid var(--accent);padding:8px 18px;font-size:14px}.book-reward{padding:35px;border:1px solid var(--accent);margin:35px 0;background:color-mix(in srgb,var(--accent) 6%,var(--paper))}.book-reward h2{font:normal 42px/1.1 var(--serif)}.reader-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding:20px 0}.book-text{max-width:720px;margin:55px auto;font:20px/1.85 var(--serif);overflow-wrap:break-word}.book-text p{text-indent:1.4em;margin:0 0 .35em}.book-text h1{font:normal 38px/1.2 var(--serif);text-align:center;margin:0 0 45px}.book-text hr{width:70px;border:0;border-top:1px solid var(--line);margin:35px auto}.book-text p:first-of-type,.book-text hr+p{text-indent:0}.reader-foot{display:flex;justify-content:space-between;gap:20px;max-width:720px;margin:35px auto}.reader-note{max-width:720px;margin:30px auto;font-size:13px;color:var(--muted)}[hidden]{display:none!important}
@media(max-width:1000px){.wrap{width:calc(100% - 48px)}.masthead{align-items:flex-start;gap:20px;flex-direction:column}nav{gap:18px}.hero{gap:30px}.hero-media img{height:380px}.article-layout{grid-template-columns:minmax(0,1fr) 185px;gap:30px}.features{gap:30px}.case-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.wrap{width:calc(100% - 36px)}.masthead{padding:20px 0}.brand-name{font-size:19px!important}.brand small{font-size:9px}nav{gap:16px;font-size:12px;line-height:2}.hero,.reference .hero,.magazine .hero,.nursery .hero,.forum .hero,.collection .hero,.journal .hero{grid-template-columns:1fr;padding:32px 0;gap:28px}.hero h1,.forum .hero h1{font-size:44px;margin:15px 0}.hero .deck{font-size:16px}.hero-media,.magazine .hero-media,.collection .hero-media{order:initial}.hero-media img,.magazine .hero-media img,.collection .hero-media img,.heritage .hero-media img,.journal .hero-media img{height:300px}.nursery .hero-media img{height:350px}.journal .hero-media{transform:none}.sound-strip{grid-template-columns:1fr;gap:12px}.features,.journal .features{grid-template-columns:1fr;gap:20px;padding:35px 0}.features h2{font-size:32px}.field-card{padding:20px 0 0;border-left:0;border-top:1px solid var(--line)}.cards,.catalogue,.case-grid{grid-template-columns:1fr}.card{padding-top:16px}.discover{padding:35px 0}.article-layout{grid-template-columns:1fr;padding-top:25px}.aside{border-top:1px solid var(--line);padding-top:25px}.article-header h1{font-size:37px}.article-header p{font-size:16px}.site-footer{flex-direction:column;gap:20px}.edition{font-size:10px;gap:12px;flex-wrap:wrap}.record-paper{padding:20px 16px}.record-tabs{gap:6px}.record-tabs a{padding:8px;font-size:11px}.answer-row{flex-direction:column}.book-text{font-size:19px;margin-top:35px}.reader-bar{align-items:stretch}.reader-bar select{width:100%}.book-reward{padding:25px}.book-reward h2{font-size:35px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}