*{box-sizing:border-box}
:root{--brand:#0f766e;--accent:#f59e0b;--ink:#10233f;--muted:#64748b;--line:#dbe4ee;--surface:#fff;--wash:#f4f7fa;--danger:#b42318}
html{background:var(--wash);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;letter-spacing:0}
body{margin:0;min-height:100vh;display:flex;flex-direction:column}
a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}
.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}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.header-inner{max-width:1200px;margin:auto;min-height:76px;padding:10px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand-mark{width:44px;height:44px;background:var(--brand);color:#fff;display:grid;place-items:center;border-radius:6px}.brand-mark svg{width:24px}.brand strong{display:block;font-size:18px}.brand small{display:block;color:var(--muted);font-size:12px;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:380px}
.header-actions{display:flex;align-items:center;gap:8px}.icon-link,.cart-link{height:42px;padding:0 12px;display:flex;align-items:center;gap:7px;border:1px solid var(--line);background:#fff;border-radius:6px;font-weight:700;font-size:14px}.icon-link svg,.cart-link svg{width:18px}.cart-link b{min-width:20px;height:20px;padding:0 5px;border-radius:10px;background:var(--accent);display:grid;place-items:center;font-size:11px;color:#201600}
.page-shell{width:100%;max-width:1200px;margin:0 auto;padding:28px 24px 48px;flex:1}
.catalog-toolbar{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;align-items:end;margin-bottom:22px}.catalog-toolbar h1{font-size:30px;margin:0 0 5px}.catalog-toolbar p{margin:0;color:var(--muted)}
.search-form{display:grid;grid-template-columns:minmax(220px,360px) 170px 44px;gap:8px}.search-form input,.search-form select,.form-control{width:100%;height:44px;border:1px solid #cbd5e1;border-radius:6px;background:#fff;padding:0 12px;color:var(--ink)}.search-form button,.icon-button{width:44px;height:44px;border:0;border-radius:6px;background:var(--brand);color:#fff;display:grid;place-items:center;cursor:pointer}.search-form button svg{width:19px}
.result-bar{display:flex;justify-content:space-between;align-items:center;margin:8px 0 16px;color:var(--muted);font-size:14px}.result-bar a{color:var(--brand);font-weight:700}
.book-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.book-card{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;display:flex;flex-direction:column;min-width:0;transition:transform .15s,border-color .15s,box-shadow .15s}.book-card:hover{transform:translateY(-2px);border-color:#b6c5d5;box-shadow:0 10px 22px rgba(15,35,62,.08)}
.cover{aspect-ratio:4/5;background:#e8eef4;display:grid;place-items:center;overflow:hidden;position:relative}.cover img{width:100%;height:100%;object-fit:cover}.cover-placeholder{width:76%;height:82%;background:var(--brand);color:#fff;padding:18px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 10px 20px rgba(0,0,0,.16)}.cover-placeholder span{font-size:11px;text-transform:uppercase;opacity:.75}.cover-placeholder strong{font-size:17px;line-height:1.2;overflow-wrap:anywhere}
.book-body{padding:15px;display:flex;flex-direction:column;gap:8px;flex:1}.book-meta{color:var(--muted);font-size:12px;display:flex;justify-content:space-between;gap:8px}.book-body h2{font-size:17px;line-height:1.28;margin:0}.author{margin:0;color:var(--muted);font-size:13px}.price-row{margin-top:auto;display:flex;align-items:end;justify-content:space-between;gap:10px}.price strong{font-size:19px}.price del{display:block;color:#94a3b8;font-size:12px}.stock{font-size:12px;color:#15803d}.stock.out{color:var(--danger)}
.primary-button,.secondary-button{height:42px;padding:0 16px;border-radius:6px;border:1px solid var(--brand);font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer}.primary-button{background:var(--brand);color:#fff}.secondary-button{background:#fff;color:var(--brand)}.primary-button:disabled{opacity:.45;cursor:not-allowed}
.empty-state,.setup-screen{min-height:55vh;display:grid;place-items:center;text-align:center}.empty-state div,.setup-screen div{max-width:560px}.empty-state svg{width:44px;height:44px;color:var(--brand)}.empty-state h2,.setup-screen h1{margin:12px 0 6px}.empty-state p,.setup-screen p{color:var(--muted)}
.detail-layout{display:grid;grid-template-columns:minmax(280px,420px) minmax(0,1fr);gap:42px}.detail-cover{background:#e8eef4;border:1px solid var(--line);border-radius:8px;overflow:hidden;aspect-ratio:4/5;display:grid;place-items:center}.detail-cover img{width:100%;height:100%;object-fit:cover}.detail-info h1{font-size:36px;line-height:1.15;margin:6px 0 10px}.eyebrow{color:var(--brand);font-size:13px;font-weight:800;text-transform:uppercase}.detail-author{font-size:17px;color:var(--muted);margin:0 0 18px}.detail-price{display:flex;gap:12px;align-items:baseline;margin:18px 0}.detail-price strong{font-size:28px}.detail-price del{color:#94a3b8}.detail-description{line-height:1.65;color:#334155}.spec-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line);margin:20px 0}.spec-list div{padding:11px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.spec-list dt{font-size:11px;color:var(--muted);text-transform:uppercase}.spec-list dd{margin:3px 0 0;font-weight:700}.buy-form{display:flex;gap:10px;align-items:center}.qty-control{width:90px}.qty-control input{height:42px;width:100%;border:1px solid #cbd5e1;border-radius:6px;padding:0 10px}
.page-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:20px}.page-heading h1{margin:0;font-size:30px}.page-heading p{margin:4px 0 0;color:var(--muted)}
.cart-layout,.checkout-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:24px;align-items:start}.line-list{display:flex;flex-direction:column;gap:10px}.cart-line{display:grid;grid-template-columns:76px minmax(0,1fr) 100px 110px 40px;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);padding:12px;border-radius:8px}.mini-cover{width:76px;aspect-ratio:4/5;background:#e8eef4;overflow:hidden;border-radius:4px;display:grid;place-items:center}.mini-cover img{width:100%;height:100%;object-fit:cover}.cart-line h2{font-size:16px;margin:0 0 5px}.cart-line p{margin:0;color:var(--muted);font-size:12px}.cart-line input{width:84px;height:40px;border:1px solid #cbd5e1;border-radius:6px;padding:0 8px}.line-total{text-align:right;font-weight:800}.remove-button{width:38px;height:38px;border:0;background:#fff0ef;color:var(--danger);border-radius:6px;display:grid;place-items:center;cursor:pointer}
.summary,.checkout-form{background:#fff;border:1px solid var(--line);border-radius:8px;padding:20px}.summary{position:sticky;top:98px}.summary h2,.checkout-form h2{font-size:18px;margin:0 0 16px}.summary-row{display:flex;justify-content:space-between;gap:20px;padding:8px 0;color:#475569}.summary-row.total{border-top:1px solid var(--line);margin-top:7px;padding-top:14px;color:var(--ink);font-size:18px;font-weight:900}.summary .primary-button{width:100%;margin-top:14px}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.field.full{grid-column:1/-1}.field label{display:block;font-size:13px;font-weight:750;margin-bottom:5px}.field textarea{min-height:90px;padding:10px;resize:vertical;border:1px solid #cbd5e1;border-radius:6px;width:100%}.field select{width:100%;height:44px;border:1px solid #cbd5e1;border-radius:6px;padding:0 10px;background:#fff}.error-box,.success-box{padding:12px 14px;border-radius:6px;margin-bottom:16px}.error-box{background:#fff0ef;color:#8a1c13;border:1px solid #fecaca}.success-box{background:#ecfdf3;color:#166534;border:1px solid #bbf7d0}
.order-success{max-width:720px;margin:30px auto;background:#fff;border:1px solid var(--line);border-radius:8px;padding:34px;text-align:center}.success-icon{width:58px;height:58px;border-radius:50%;background:#dcfce7;color:#15803d;display:grid;place-items:center;margin:0 auto 16px}.success-icon svg{width:30px}.order-success h1{margin:0 0 8px}.order-success p{color:var(--muted)}.order-number{font-size:24px;font-weight:900;margin:20px 0}.success-actions{display:flex;justify-content:center;gap:10px;margin-top:22px}
.site-footer{margin-top:auto;background:#10233f;color:#fff;padding:24px max(24px,calc((100vw - 1152px)/2));display:flex;justify-content:space-between;gap:20px}.site-footer strong{display:block}.site-footer span{font-size:12px;opacity:.75}.footer-contact{display:flex;gap:18px;align-items:center}.footer-contact span{display:flex;align-items:center;gap:6px}.footer-contact svg{width:15px}
@media(max-width:900px){.book-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.catalog-toolbar{grid-template-columns:1fr}.search-form{grid-template-columns:minmax(0,1fr) 150px 44px}.detail-layout,.cart-layout,.checkout-layout{grid-template-columns:1fr}.detail-cover{max-width:430px;margin:auto}.summary{position:static}.cart-line{grid-template-columns:64px minmax(0,1fr) 90px 40px}.cart-line .line-total{grid-column:2/4;text-align:left}.mini-cover{width:64px}.site-footer{flex-direction:column}}
@media(max-width:560px){.header-inner,.page-shell{padding-left:14px;padding-right:14px}.brand small,.icon-link span,.cart-link span{display:none}.book-grid{grid-template-columns:1fr}.search-form{grid-template-columns:1fr 44px}.search-form select{grid-column:1/2}.catalog-toolbar h1,.page-heading h1{font-size:25px}.detail-info h1{font-size:28px}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.cart-line{grid-template-columns:56px minmax(0,1fr) 38px}.mini-cover{width:56px}.cart-line input{width:100%;grid-column:2}.cart-line .line-total{grid-column:2}.success-actions{flex-direction:column}}

/* Marketplace home and navigation */
.site-header{background:#10233f;border-bottom:0;color:#fff}.header-inner{max-width:1440px;display:grid;grid-template-columns:minmax(190px,260px) 132px minmax(320px,1fr) auto;min-height:72px;padding-top:8px;padding-bottom:8px}.brand{color:#fff}.brand-mark{background:var(--accent);color:#10233f}.brand small{color:#cbd5e1}.delivery-location{display:flex;align-items:center;gap:6px;padding:7px;border:1px solid transparent;border-radius:4px}.delivery-location:hover,.account-link:hover,.cart-link:hover{border-color:#fff}.delivery-location svg{width:19px}.delivery-location small,.account-link small{display:block;font-size:11px;color:#cbd5e1;white-space:nowrap}.delivery-location strong,.account-link strong{display:block;font-size:13px;white-space:nowrap}
.global-search{height:44px;display:grid;grid-template-columns:70px minmax(0,1fr) 48px;border-radius:6px;overflow:hidden;box-shadow:0 0 0 2px transparent}.global-search:focus-within{box-shadow:0 0 0 3px var(--accent)}.global-search select,.global-search input,.global-search button{border:0;height:44px}.global-search select{background:#edf1f5;padding:0 8px;color:#334155;border-right:1px solid #cbd5e1}.global-search input{padding:0 14px;min-width:0}.global-search button{background:var(--accent);color:#10233f;display:grid;place-items:center;cursor:pointer}.global-search button svg{width:21px}
.header-actions{gap:3px;flex-wrap:nowrap;justify-content:flex-end}.account-link,.cart-link{height:50px;padding:7px 9px;border:1px solid transparent;border-radius:4px;color:#fff;display:flex;flex-direction:column;justify-content:center;background:transparent}.cart-link{position:relative;flex-direction:row;align-items:center;font-size:14px;min-width:68px}.cart-link svg{width:28px;height:28px}.cart-link b{position:absolute;top:1px;left:25px;background:transparent;color:var(--accent);font-size:16px}.market-nav{height:40px;padding:0 max(24px,calc((100vw - 1392px)/2));background:#1d3556;display:flex;align-items:center;gap:4px;overflow-x:auto;white-space:nowrap}.market-nav a,.market-nav span{height:34px;padding:0 11px;display:flex;align-items:center;gap:6px;border:1px solid transparent;font-size:13px}.market-nav a:hover{border-color:#fff}.market-nav svg{width:18px}.market-nav span{margin-left:auto;color:#dbe7f4}
.language-switcher{height:38px;display:flex;align-items:center;gap:3px;padding:0 5px;border:1px solid transparent;border-radius:4px}.language-switcher:hover{border-color:#fff}.language-switcher svg{width:17px}.language-switcher select{max-width:72px;border:0;background:#10233f;color:#fff;font-size:12px;font-weight:800;cursor:pointer}.language-switcher option{background:#fff;color:#10233f}
.access-menu{position:relative;height:50px;flex:0 0 auto}.access-menu summary{height:50px;display:flex;align-items:center;gap:6px;padding:5px 7px;border:1px solid transparent;border-radius:4px;color:#fff;cursor:pointer;list-style:none}.access-menu summary::-webkit-details-marker{display:none}.access-menu summary:hover,.access-menu[open] summary{border-color:#fff}.access-menu summary>svg{width:21px;flex:0 0 auto}.access-menu summary span{display:block;line-height:1.15}.access-menu summary small,.access-menu summary strong{display:block;white-space:nowrap}.access-menu summary small{font-size:11px;color:#cbd5e1}.access-menu summary strong{font-size:13px}.access-menu .access-chevron{width:14px;transition:transform .15s}.access-menu[open] .access-chevron{transform:rotate(180deg)}.access-panel{position:absolute;z-index:100;top:56px;right:0;width:290px;background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:6px;box-shadow:0 16px 36px rgba(15,35,63,.28);padding:7px}.access-panel:before{content:"";position:absolute;right:28px;top:-7px;width:12px;height:12px;background:#fff;border-left:1px solid var(--line);border-top:1px solid var(--line);transform:rotate(45deg)}.access-panel a{position:relative;display:flex;align-items:center;gap:11px;padding:10px;border-radius:5px;white-space:normal}.access-panel a:hover{background:#eef8f6}.access-panel a+a{border-top:1px solid #eef2f6}.access-panel a>svg{width:20px;color:var(--brand);flex:0 0 auto}.access-panel a span{min-width:0}.access-panel strong,.access-panel small{display:block}.access-panel strong{font-size:13px}.access-panel small{margin-top:2px;color:var(--muted);font-size:11px;line-height:1.3}
.page-shell:has(.market-home){max-width:none;padding:0;overflow:hidden}.market-home{max-width:1440px;margin:0 auto;padding:0 18px 42px}.market-hero{min-height:360px;background-image:linear-gradient(90deg,rgba(255,255,255,.98) 0%,rgba(255,255,255,.92) 32%,rgba(255,255,255,.15) 58%,rgba(255,255,255,0) 100%),var(--publisher-hero);background-size:cover;background-position:center;border-radius:0 0 8px 8px;display:flex;align-items:center;padding:44px 6%;margin-bottom:0}.market-hero-content{max-width:510px}.market-hero .eyebrow{font-size:13px}.market-hero h1{font-size:42px;line-height:1.08;margin:10px 0 12px}.market-hero p{font-size:17px;line-height:1.55;color:#475569;margin:0 0 22px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap}
.benefit-strip{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-top:0;margin-bottom:22px}.benefit{display:flex;align-items:center;gap:10px;padding:14px 18px;border-right:1px solid var(--line)}.benefit:last-child{border-right:0}.benefit svg{width:22px;color:var(--brand)}.benefit strong{display:block;font-size:13px}.benefit span{display:block;color:var(--muted);font-size:11px;margin-top:2px}
.department-section{background:#fff;border:1px solid var(--line);padding:18px;margin-bottom:22px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:14px}.section-heading h2{margin:0;font-size:22px}.section-heading p{margin:4px 0 0;color:var(--muted);font-size:13px}.section-heading a{color:var(--brand);font-size:13px;font-weight:800}.department-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}.department-tile{min-height:92px;background:#f3f7fa;border:1px solid #e2e8f0;padding:13px;display:flex;flex-direction:column;justify-content:space-between;border-radius:6px}.department-tile:hover{border-color:var(--brand);background:#eef8f6}.department-tile svg{width:22px;color:var(--brand)}.department-tile strong{font-size:13px;overflow-wrap:anywhere}
.product-rail{background:#fff;border:1px solid var(--line);padding:18px;margin-bottom:22px}.product-rail .book-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.market-home .book-card{box-shadow:none;border-color:#e2e8f0}.market-home .book-card:hover{box-shadow:0 8px 20px rgba(15,35,62,.09)}.market-home .cover{aspect-ratio:4/4.7}.deal-badge{position:absolute;left:8px;bottom:8px;background:#c2410c;color:#fff;padding:4px 7px;border-radius:3px;font-size:10px;font-weight:900}.market-catalog{background:#fff;border:1px solid var(--line);padding:18px}.market-catalog .catalog-toolbar{align-items:center;margin-bottom:12px}.market-catalog .catalog-toolbar h2{margin:0;font-size:22px}.market-catalog .search-form{grid-template-columns:minmax(210px,340px) 170px 44px}
@media(max-width:1100px){.header-inner{grid-template-columns:220px minmax(280px,1fr) auto}.delivery-location{display:none}.product-rail .book-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.department-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:800px){.header-inner{grid-template-columns:1fr auto}.global-search{grid-column:1/-1;grid-row:2}.orders-link{display:none}.market-nav{padding-left:12px}.market-hero{min-height:330px;background-image:linear-gradient(90deg,rgba(255,255,255,.98),rgba(255,255,255,.72)),var(--publisher-hero)}.benefit-strip{grid-template-columns:repeat(2,1fr)}.benefit:nth-child(2){border-right:0}.product-rail .book-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.header-inner{padding:8px 12px}.header-actions{justify-self:end}.account-link{display:none}.language-switcher{padding:0 2px}.access-menu summary span,.access-chevron{display:none}.access-menu summary{padding:5px}.access-panel{position:fixed;top:70px;right:10px;left:10px;width:auto}.global-search{grid-template-columns:58px minmax(0,1fr) 44px}.market-home{padding:0 10px 30px}.market-hero{min-height:310px;padding:30px 22px;background-position:62% center}.market-hero h1{font-size:31px}.market-hero p{font-size:15px}.benefit-strip{grid-template-columns:1fr}.benefit{border-right:0;border-bottom:1px solid var(--line)}.benefit:last-child{border-bottom:0}.department-grid{grid-template-columns:repeat(2,1fr)}.product-rail .book-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.market-home .book-body{padding:11px}.market-home .book-body h2{font-size:14px}.market-home .price strong{font-size:16px}.market-catalog .catalog-toolbar{grid-template-columns:1fr}.market-catalog .search-form{grid-template-columns:1fr 44px}.market-catalog .search-form select{grid-column:1}}