:root{--ink:#100d12;--muted:#716a74;--accent:#a50057;--paper:#fff;--line:#e6e0e5;--bg:#f5f2f4}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font:15px/1.55 Arial,Helvetica,sans-serif}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button,a.button{cursor:pointer}button{border:1px solid var(--line);background:white;border-radius:5px;padding:10px 15px;color:var(--ink)}button:hover{border-color:var(--accent);color:var(--accent)}button:disabled{opacity:.4;cursor:not-allowed}button.primary,.button{background:var(--accent);border:1px solid var(--accent);color:white;font-weight:600;padding:14px 22px;border-radius:4px;display:inline-flex;align-items:center;gap:24px}.button.secondary{background:transparent;color:var(--ink);border-color:#cfc6cd}h1{font-size:42px;line-height:1.1;letter-spacing:-1.6px;margin:28px 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.chosen{color:var(--ink);border-bottom:2px solid var(--accent)}.actions{display:flex;gap:14px;flex-wrap:wrap}.cover-art{background:var(--ink);color:white;position:relative;overflow:hidden;min-height:600px;display:flex;flex-direction:column;justify-content:flex-end;padding:45px}.art-stripes{position:absolute;inset:0 0 0 0;background:repeating-linear-gradient(0deg,transparent 0 23px,#a50057 23px 43px);clip-path:polygon(35% 0,100% 0,100% 100%,0 100%)}.art-letter{position:relative;font-size:clamp(90px,12vw,210px);letter-spacing:-.09em;font-weight:900;line-height:1}.cover-art>span{position:relative;font-size:12px;letter-spacing:3px;margin-top:40px}.site-footer{padding:32px 5vw;border-top:1px solid var(--line);display:flex;align-items:center;gap:30px;font-size:12px}.site-footer img{width:76px}.site-footer a{margin-left:auto}.catalog-layout{display:grid;grid-template-columns:240px 1fr;padding:40px 5vw;gap:45px}.catalog-layout aside{position:sticky;top:20px;align-self:start}.cat-link{display:block;padding:12px 0;border-bottom:1px solid var(--line)}.page-title{display:flex;align-items:center;justify-content:space-between;gap:20px}.page-title a{color:var(--accent)}.category-heading{border-top:2px solid var(--ink);display:flex;gap:15px;align-items:center;margin:40px 0 20px}.category-heading span{font-size:11px;color:var(--accent);text-transform:uppercase}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.product-card{border:1px solid var(--line);background:white}.product-card>img{width:100%;height:220px;object-fit:contain;padding:22px;background:#faf9fa}.card-copy{padding:24px}.sku{font-size:11px;font-weight:700;letter-spacing:1px;color:var(--accent)}.card-copy h3{margin:8px 0 14px}.card-copy>p:not(.sku){font-size:14px;color:#4b444d}.detail-link{display:inline-block;border-bottom:1px solid var(--accent);color:var(--accent);margin-top:18px;font-size:13px}.product-card.wide{grid-column:1/-1;display:grid;grid-template-columns:230px 1fr}.product-card.wide>img{height:280px}.table-scroll{overflow-x:auto}.variant-table{border-collapse:collapse;width:100%;font-size:12px;table-layout:fixed;overflow-wrap:anywhere}.variant-table th{text-align:left;background:var(--ink);color:#fff;font-weight:600}.variant-table td,.variant-table th{padding:11px;border-bottom:1px solid var(--line)}.variant-table tbody tr:nth-child(even){background:var(--bg)}.detail{max-width:1250px;margin:45px auto;padding:0 35px 70px}.detail>a{font-size:13px;color:var(--muted)}.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;margin:40px 0}.detail h1{font-size:46px}.lead{font-size:18px;line-height:1.7}.gallery>img{width:100%;height:420px;object-fit:contain;background:var(--bg)}.thumbnails{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}.thumbnails button{padding:4px}.thumbnails img{width:64px;height:64px;object-fit:contain}.file-link{display:block;padding:13px 0;border-bottom:1px solid var(--line);color:var(--accent)}.contact-page{max-width:900px;margin:90px auto;min-height:450px;padding:0 30px}.contact-page h1{font-size:64px}.contact-page a{color:var(--accent);border-bottom:1px solid}.flip-layout{display:grid;grid-template-columns:250px 1fr;background:#e9e5e8;min-height:85vh}.flip-layout aside{background:white;padding:28px 24px}.flip-layout aside a{display:flex;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px solid var(--line);font-size:13px}.download-link{color:var(--accent)}.book-stage{padding:24px 24px 60px;min-width:0}.book-controls{display:flex;justify-content:center;align-items:center;gap:20px;margin-bottom:22px}.book-controls input{width:60px;padding:8px;border:1px solid var(--line)}.book{max-width:794px;margin:auto}.sheet{background:white;box-shadow:0 5px 25px #2b14261a;animation:page-in .2s ease}.sheet[hidden]{display:none}@keyframes page-in{from{opacity:.45;transform:translateX(8px)}to{opacity:1;transform:none}}.admin{background:var(--bg)}.admin-sidebar{position:fixed;top:0;bottom:0;width:240px;padding:32px 23px;background:white;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:20px}.admin-sidebar img{width:150px}.admin-sidebar nav{display:grid;gap:4px}.admin-sidebar nav button{border:0;text-align:left;padding:12px 15px}.admin-sidebar nav .active{background:#f6e7ef;color:var(--accent);font-weight:bold}.admin-sidebar>a:not(:first-child){margin-top:auto;font-size:13px;color:var(--accent)}.admin-main{margin-left:240px;padding:24px 44px 70px;max-width:1600px}.admin-main>header{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);letter-spacing:1px;border-bottom:1px solid var(--line);padding-bottom:22px}.admin-main h1{margin:42px 0 25px}.muted{color:var(--muted)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:35px 0}.stats>div{background:white;border:1px solid var(--line);padding:24px;color:var(--muted)}.stats strong{display:block;font-size:42px;line-height:1.3;color:var(--ink)}.panel{background:white;border:1px solid var(--line);padding:28px;margin:22px 0}.panel h2:first-child{margin-top:0}.title-row{display:flex;align-items:center;justify-content:space-between;gap:20px}.list-row{display:flex;align-items:center;gap:25px;border-bottom:1px solid var(--line);padding:17px 0}.list-row>div{flex:1}.list-row>button,.list-row>a:last-child{margin-left:auto}.list-row small{display:block;color:var(--muted)}.badge{padding:4px 9px;border-radius:4px;background:#eee;font-size:11px;white-space:nowrap}.badge.published{background:#e4f2e9;color:#236b42}.badge.hidden{background:#faece1;color:#925522}.admin-table{width:100%;border-collapse:collapse;font-size:14px}.admin-table th{text-align:left;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.7px}.admin-table td,.admin-table th{padding:16px 10px;border-bottom:1px solid var(--line)}.admin label{display:block;font-size:13px;font-weight:bold;margin:15px 0}.admin input:not([type=checkbox]),.admin select,.admin textarea{display:block;width:100%;padding:11px 12px;border:1px solid #cfc7cd;border-radius:4px;margin-top:6px;background:white;font-weight:400;color:var(--ink)}.admin textarea{resize:vertical;min-height:90px}.admin small{font-weight:normal;color:var(--muted)}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px}.form-actions{display:flex;gap:12px;align-items:center;padding:20px 0}.sticky{position:sticky;bottom:0;background:var(--bg);border-top:1px solid var(--line);z-index:3}.danger{color:#a12d36;margin-left:auto}.translation-tabs{display:flex;gap:6px;margin:25px 0;border-bottom:1px solid var(--line);padding-bottom:12px;flex-wrap:wrap}.translation-tabs .active{background:var(--ink);color:white;border-color:var(--ink)}.photo-editor{display:flex;gap:15px;flex-wrap:wrap}.photo-editor>div{width:145px;border:1px solid var(--line);padding:8px}.photo-editor img{width:125px;height:115px;object-fit:contain}.photo-editor small{display:block}.photo-editor button{padding:5px;font-size:11px;margin-top:6px}.variant-edit{padding:20px;border:1px solid var(--line);margin:15px 0;background:#fbfafb}.file-editor{display:grid;grid-template-columns:1fr 1fr auto;align-items:center;gap:15px}.file-editor small{word-break:break-all}.language-row{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:15px 0;gap:20px}.language-row li{font-size:13px}.narrow{max-width:600px}.login{max-width:460px;margin:9vh auto;padding:38px;background:white;border:1px solid var(--line)}.login>img{width:160px}.login h1{font-size:30px;margin-top:40px}.login> a{display:block;margin-top:25px;font-size:13px}.login button{width:100%;margin:20px 0}.error{color:#ad203d;white-space:pre-wrap}.empty{padding:30px;color:var(--muted)}#toast{display:none;position:fixed;bottom:25px;right:25px;max-width:520px;background:#202b22;color:white;padding:18px 23px;box-shadow:0 3px 15px #0003;z-index:10;white-space:pre-wrap}#toast.show{display:block}#toast.bad{background:#7c1633}:focus-visible{outline:3px solid #bb5293;outline-offset:3px}[hidden]{display:none!important}
@media(max-width:1000px){.site-header nav{gap:15px}.catalog-layout{grid-template-columns:180px 1fr;gap:25px}.product-card.wide{display:block}.admin-main{padding:20px 25px}.stats{grid-template-columns:repeat(2,1fr)}.flip-layout{grid-template-columns:200px 1fr}}@media(max-width:720px){h1{font-size:34px}.site-header{height:auto;min-height:90px;padding:20px;flex-wrap:wrap;gap:20px}.site-header nav{order:3;width:100%;font-size:11px;justify-content:space-between}.logo{width:105px}.cover{grid-template-columns:1fr}.cover-copy{padding:40px 25px}.cover h1{margin-top:30px}.cover-art{min-height:270px;padding:25px}.art-letter{font-size:100px}.cover-art>span{margin-top:15px}.cover-languages{gap:20px}.catalog-layout{display:block;padding:25px}.catalog-layout aside{position:static;margin-bottom:25px}.cards{grid-template-columns:1fr}.page-title{display:block}.detail-grid{grid-template-columns:1fr;gap:25px}.detail h1{font-size:36px}.gallery>img{height:300px}.flip-layout{display:block}.flip-layout aside{padding:16px;max-height:180px;overflow:auto}.book-stage{padding:15px 8px}.book{overflow-x:auto}.sheet{min-width:650px}.admin-sidebar{position:static;width:100%;padding:18px;gap:10px}.admin-sidebar nav{display:flex;overflow:auto}.admin-sidebar nav button{white-space:nowrap}.admin-sidebar>p,.admin-sidebar>a:not(:first-child),.admin-sidebar>button{display:none}.admin-main{margin-left:0;padding:20px 16px}.admin-main h1{margin-top:25px}.form-grid{grid-template-columns:1fr}.panel{padding:20px}.title-row{flex-wrap:wrap}.file-editor{grid-template-columns:1fr}.language-row{align-items:flex-start}.form-actions{flex-wrap:wrap}.site-footer{gap:15px}.site-footer span{display:none}}
@media(prefers-reduced-motion:reduce){*{animation:none!important}}

/* BTI: original catalogue concept, September 2026. */
.public{--ink:#1d2225;--muted:#697176;--accent:#c9272c;--paper:#f7f5f0;--line:#dedbd4;--bg:#e9e7e2;background:var(--bg)}
.public .site-header{height:76px;background:white;padding:0 max(24px,calc((100vw - 1212px)/2));gap:24px}.public .logo{width:118px;height:auto}.public .site-footer{background:white}.public .site-footer img{height:auto}
.cover-layout{max-width:1260px;margin:34px auto;padding:0 24px;display:grid;grid-template-columns:245px minmax(0,1fr);gap:20px;align-items:start}
.cover-toc,.public .catalog-layout aside,.public .flip-layout aside{background:white;border:1px solid var(--line);border-radius:5px;padding:20px 16px;box-shadow:0 8px 28px #2525250a}
.cover-toc h2,.public .flip-layout aside h2{font-size:12px;text-transform:uppercase;letter-spacing:.12em;margin:2px 0 15px;color:#606a70}.cover-toc a{display:flex;gap:11px;border-top:1px solid #eee;padding:13px 2px;font-size:13px;font-weight:600}.cover-toc a b{font-size:10px;color:var(--accent);padding-top:3px}.cover-toc a:hover{color:var(--accent)}
.cover-frame{background:#d4d0c8;padding:22px;border-radius:5px;min-width:0}.public .cover{display:block;min-height:555px;background:linear-gradient(125deg,#202629 0 54%,#333a3d 54%);color:white;box-shadow:0 12px 30px #10101020;position:relative;overflow:hidden}.public .cover:after{content:"";position:absolute;width:370px;height:370px;border:1px solid #ffffff26;border-radius:50%;right:-150px;bottom:-220px;box-shadow:0 0 0 35px #ffffff08,0 0 0 70px #ffffff06;pointer-events:none}.public .cover-copy{padding:38px clamp(24px,4vw,52px);position:relative;z-index:1}.cover-logo{display:block;width:176px;max-width:100%;height:auto;background:white;padding:12px;box-sizing:content-box}.cover-accent{width:80px;height:4px;background:var(--accent);margin:30px 0 22px}.public .cover h1{font-size:clamp(34px,4.7vw,64px);margin:0;line-height:1.03;letter-spacing:-.035em}.public .cover-intro{color:#c7ccce;font-size:16px;margin:22px 0}.public .cover-languages{gap:20px;margin:28px 0 24px;color:#c7ccce;font-size:13px}.public .cover-languages .chosen{color:white}.public .cover .button{font-size:13px;padding:12px 16px;gap:15px}.public .cover .secondary{color:white;border-color:#889093}.cover-signature{font-size:10px;letter-spacing:.15em;text-transform:uppercase;color:#b7bec0;margin:38px 0 0}
.public .catalog-layout,.public .flip-layout{max-width:1260px;margin:34px auto;padding:0 24px;grid-template-columns:245px minmax(0,1fr);gap:20px;background:transparent}.public .catalog-layout main{min-width:0;background:var(--paper);padding:22px}.public .page-title h1{font-size:34px;margin:8px 0}.public .page-title a{font-size:12px}.public .cat-link{font-size:13px}.public .product-card>img{background:#f1efea}.public .card-copy{padding:18px}.public .card-copy h3{font-size:18px}.public .book-stage{background:#d4d0c8;border-radius:5px;padding:22px;min-width:0}.public .flip-layout aside{align-self:start}.public .sheet{background:var(--paper)}
@media(max-width:820px){.cover-layout,.public .catalog-layout,.public .flip-layout{grid-template-columns:1fr;margin:22px auto;padding:0 14px}.cover-toc{order:2}.cover-frame{padding:10px}.public .cover{min-height:510px}.public .catalog-layout aside{position:static}.public .flip-layout aside{max-height:220px;overflow:auto}.public .site-header{height:auto;min-height:76px;padding:16px;flex-wrap:wrap}.public .site-header nav{order:3;width:100%;justify-content:space-between}.public .book-stage{padding:12px 8px}.public .cover-copy{padding:28px 24px}.cover-logo{width:145px}.public .cards{grid-template-columns:1fr}}