.hub-home,.site-inner{color-scheme:light}
.store-page .store-catalogue{padding-top:32px}
body.store-page .store-masthead{padding-block:40px}
body.store-page .store-masthead h1{font-size:clamp(42px,4.5vw,64px)}
@media(max-width:700px){body.store-page .store-masthead{padding-block:28px}}
.store-notice{padding:16px max(6vw,22px);background:#edf4ff;color:#254f86;font-size:14px;line-height:1.7}
.store-page .hub-header{flex-wrap:wrap}.store-page .hub-header nav{display:flex;flex-wrap:wrap;gap:8px 20px}.store-page .hub-header nav a{min-height:44px;display:inline-flex;align-items:center;gap:6px}
.store-page .store-masthead{padding-block:64px}.store-page .store-masthead h1{font-size:clamp(42px,5.4vw,76px)}
.store-catalogue{padding-top:48px}.store-search{max-width:720px}.store-search label{display:block;font-weight:700;margin-bottom:10px}.store-search>div{display:flex;gap:10px}.store-search input{min-width:0;flex:1;border:1px solid #9baec5;border-radius:8px;padding:14px;font:inherit;color:#191f28;background:#fff}.store-search button{min-height:52px}
.store-categories{display:flex;flex-wrap:wrap;gap:10px;padding:28px 0}.site-inner .store-categories button{min-height:44px;border:1px solid #b7cbe7;border-radius:24px;background:white;padding:10px 22px;color:#254f86}.site-inner .store-categories [aria-pressed=true]{color:white;background:#2272eb;border-color:#2272eb}
.store-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin-top:24px}.store-card{display:flex;min-width:0;flex-direction:column;align-items:start;gap:12px;border:1px solid #dce6f3;border-radius:16px;padding:20px;background:white;color:#191f28}.store-card h3{font-size:24px;line-height:1.35}.store-card>p:not(.hub-note){font-size:15px;color:#4d596a}.store-card>strong{margin-top:auto}.store-card .text-link{font-size:15px}.store-card .store-book-stage{width:100%}
.store-book-stage{background:linear-gradient(150deg,#eaf2ff,#f4f6f8);min-height:320px;display:flex;align-items:center;justify-content:center;padding:34px 24px;border-radius:10px;overflow:hidden;perspective:1000px}
.store-cover{width:200px;aspect-ratio: .7;flex-shrink:0;background:#2272eb;color:white;border-radius:2px 6px 6px 2px;box-shadow:9px 12px 0 #c1cddb,16px 22px 22px #233c5f25;transform:rotate(-4deg) rotateY(-10deg);border-left:8px solid #165cbf;display:flex;flex-direction:column;align-items:start;padding:22px 18px;line-height:1.3;position:relative}
.store-cover-mark{font-size:11px;letter-spacing:.16em;font-weight:700}.store-cover-category{margin-top:38px;font-size:13px}.store-cover strong{font-size:30px;letter-spacing:-.06em;margin-top:10px;word-break:keep-all}.store-cover-sample{font-size:9px;margin-top:auto;padding-top:24px;letter-spacing:.03em}.store-cover.grammar{background:#fff;color:#185ab7;border-left-color:#3182f6;border-top:18px solid #3182f6;transform:rotate(3deg) rotateY(-10deg)}.store-cover.grammar strong{border-block:2px solid #3182f6;padding:12px 0}.store-cover.mock{background:#193c73;border-left-color:#102b56}.store-cover.mock strong{color:#bcd9ff}.store-cover.mock .store-cover-category{border-bottom:1px solid #7fa7e6;padding-bottom:12px;width:100%}
.store-badge{display:inline-flex;background:#edf4ff;color:#185ab7;font-size:13px;font-weight:700;border:1px solid #c8dcfa;padding:3px 10px;border-radius:5px}.store-empty{padding:52px 24px;text-align:center;background:#f4f6f8;border-radius:12px;margin-block:28px}.store-empty h2{font-size:28px}.store-empty p{margin:12px 0 24px}
.store-detail-wrap{padding-top:28px}.store-breadcrumb{font-size:14px;display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:32px}.store-breadcrumb a{min-height:44px;display:inline-flex;align-items:center}.store-detail{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:6vw}.store-detail>.store-book-stage{min-height:580px}.store-detail .store-cover{width:280px;padding:32px 26px}.store-detail .store-cover strong{font-size:44px}.store-detail .store-cover-category{margin-top:62px;font-size:18px}.store-detail .store-cover-sample{font-size:12px}.store-product-summary>*+*{margin-top:18px}.store-product-summary h1{font-size:clamp(30px,3vw,46px);line-height:1.2}.store-product-summary label{display:block;font-weight:650}.store-price{font-size:26px;font-weight:750}.store-selection{background:#edf4ff;padding:16px}.store-outline{border:1px solid #3182f6;color:#185ab7;border-radius:8px;padding:12px 24px;min-height:48px;display:inline-flex;align-items:center}.store-tabs{margin-top:64px;padding-inline:0}.store-section{padding:40px 0;border-bottom:1px solid #dce6f3;max-width:850px;scroll-margin-top:24px}.store-section h2{font-size:28px;margin-bottom:20px}.store-section p+p{margin-top:16px}
.store-quantity{display:flex;align-items:center;width:max-content;border:1px solid #9baec5;border-radius:6px;overflow:hidden}.site-inner .store-quantity button{width:44px;min-height:48px;background:#edf4ff;color:#185ab7}.store-quantity input{width:64px;min-height:48px;text-align:center;border:0;border-inline:1px solid #9baec5;font:inherit;background:#fff;color:#191f28}.site-inner .store-quantity button:disabled{opacity:.45;cursor:default}.site-inner #product-add:disabled{opacity:.5;cursor:default}.store-quantity :focus-visible{outline-offset:-4px!important}
.store-cart-line{display:grid;grid-template-columns:110px minmax(0,1fr) auto auto;gap:24px;align-items:center;padding:28px 0;border-bottom:1px solid #dce6f3}.store-cart-line .text-link{display:block;margin-top:10px}.store-cart-cover{padding:12px 18px;background:#edf4ff;border-radius:8px}.store-cart-cover .store-cover{width:70px;border-left-width:3px;padding:8px 6px;box-shadow:3px 4px 0 #b4c4d8,6px 8px 10px #233c5f25}.store-cart-cover .store-cover-mark{font-size:5px}.store-cart-cover .store-cover-category{font-size:5px;margin-top:10px}.store-cart-cover .store-cover strong{font-size:11px;margin-top:4px}.store-cart-cover .store-cover-sample{font-size:4px;padding-top:8px}.store-cart-cover .store-cover.grammar{border-top-width:5px}.store-cart-cover .grammar strong{padding:3px 0}.store-cart-cover .mock .store-cover-category{padding-bottom:4px}.site-inner .store-remove{min-width:44px;min-height:44px;background:#f4f6f8;border-radius:6px;color:#4d596a}.store-cart-summary{margin-top:36px;padding:32px;background:#edf4ff;border-radius:12px}.store-cart-summary h2{font-size:26px}.store-cart-summary p{margin-top:16px}
.hub-home .store-home-preview{margin-top:28px}.hub-home .store-home-preview .store-card{font-size:16px}.hub-home .store-home-preview h3{font-size:24px}.hub-home .store-home-preview .store-book-stage{min-height:270px}.hub-home .store-notice{margin-top:28px;padding:16px}
@media(prefers-reduced-motion:no-preference){.store-card{transition:box-shadow .2s,transform .2s}.store-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px #233c5f16}}
@media(max-width:1000px){.store-grid{gap:16px}.store-card{padding:14px}.store-card .store-cover{width:160px;padding:18px 14px}.store-card .store-cover strong{font-size:26px}.store-book-stage{padding:28px 16px;min-height:280px}.store-detail .store-cover{width:220px}.store-detail .store-cover strong{font-size:36px}.store-detail>.store-book-stage{min-height:480px}.store-cart-line{grid-template-columns:90px 1fr auto;gap:16px}.store-cart-line .store-remove{grid-column:3}.store-cart-cover{padding:12px 10px}}
@media(max-width:700px){.store-page .hub-header nav{font-size:13px;gap:4px 14px}.store-page .hub-header .wordmark{font-size:20px}.store-page .store-masthead{padding-block:44px}.store-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.store-card{padding:10px;gap:10px}.store-card h3{font-size:19px}.store-card>p:not(.hub-note){font-size:13px}.store-card .store-book-stage{min-height:216px;padding:20px 10px}.store-card .store-cover{width:112px;padding:13px 9px;border-left-width:5px}.store-card .store-cover strong{font-size:19px}.store-card .store-cover-mark{font-size:8px}.store-card .store-cover-category{font-size:10px;margin-top:18px}.store-card .store-cover-sample{font-size:6px;padding-top:14px}.store-card .grammar{border-top-width:10px}.store-card .grammar strong{padding:8px 0}.store-categories{gap:8px}.site-inner .store-categories button{padding:9px 14px;font-size:14px}.store-detail{grid-template-columns:1fr;gap:32px}.store-detail>.store-book-stage{min-height:450px}.store-detail .store-cover{width:240px}.store-tabs{gap:8px 20px}.store-cart-line{grid-template-columns:90px minmax(0,1fr)}.store-cart-line .store-quantity{grid-column:2}.store-cart-line .store-remove{grid-column:2;justify-self:start}.store-cart-summary{padding:24px}.hub-home .store-home-preview .store-book-stage{min-height:216px}.hub-home .store-home-preview h3{font-size:19px}}
@media(max-width:359px){.store-grid{grid-template-columns:1fr}.store-card .store-cover{width:160px}.store-card .store-cover strong{font-size:26px}.store-card .store-book-stage{min-height:280px}.store-card .store-cover-sample{font-size:8px}.store-detail .store-cover{width:200px}.store-detail .store-cover strong{font-size:30px}.store-search>div{flex-wrap:wrap}.store-search input{flex-basis:100%}.store-cart-line{grid-template-columns:1fr}.store-cart-cover{display:none}.store-cart-line .store-quantity,.store-cart-line .store-remove{grid-column:1}.store-page .hub-header nav{gap:4px 12px}}
.hub-wrap{padding:100px max(6vw,24px);max-width:1600px;margin:auto}
.hub-intro{display:grid;grid-template-columns:minmax(240px,.8fr) 1.2fr;gap:8vw;align-items:center}
.hub-portrait{background:var(--brand-gradient);overflow:hidden;max-height:650px}
.hub-portrait img{width:100%;height:580px;object-fit:contain;object-position:bottom}
.hub-prose{max-width:720px}.hub-prose h2,.hub-section-title h2{font-size:clamp(32px,3.5vw,54px);line-height:1.2;margin:14px 0 28px}
.hub-prose p+p{margin-top:20px}.hub-prose .text-link{margin-top:24px}
.hub-lead{font-size:22px;line-height:1.65}.hub-note{font-size:14px;line-height:1.7;color:var(--muted)}
.hub-section-title{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
.hub-offer-pair{display:grid;grid-template-columns:1.2fr 1fr;gap:24px}
.hub-blue-paper,.hub-quiet-paper{padding:48px;display:flex;flex-direction:column;align-items:start;gap:24px}
.hub-blue-paper{background:var(--brand-gradient);color:white}.hub-quiet-paper{background:var(--page)}
.hub-offer-pair h3{font-size:34px}.hub-offer-pair p{font-size:18px;max-width:540px}
.hub-footer-links{padding:24px max(6vw,24px);display:flex;flex-wrap:wrap;gap:8px 28px;background:#edf4ff;color:#185ab7;font-size:16px}
.hub-footer-links a{display:inline-flex;align-items:center;min-height:44px}
.site-inner{font-size:18px;line-height:1.7;background:var(--paper)}
.hub-header{display:flex;justify-content:space-between;align-items:center;padding:22px max(6vw,24px);border-bottom:1px solid #dce6f3;gap:16px}
.hub-header nav{font-size:16px}.hub-header [aria-current],.hub-footer-links [aria-current]{text-decoration:underline;text-underline-offset:8px;font-weight:750}
.hub-page-hero{background:var(--brand-gradient);color:white;padding:80px max(6vw,24px);position:relative;overflow:hidden}
.hub-page-hero h1{font-size:clamp(44px,6vw,92px);line-height:1.14;max-width:1100px;margin:12px 0 28px;letter-spacing:-.055em}
.hub-page-hero p{max-width:700px;font-size:21px}.hub-page-hero .button{margin-top:28px}
.hub-profile-hero{display:grid;grid-template-columns:1fr .65fr;gap:6vw;align-items:center}
.hub-profile-hero img{height:500px;width:100%;object-fit:contain;object-position:bottom;margin-bottom:-80px}
.hub-columns{display:grid;grid-template-columns:1fr 1.5fr;gap:8vw}.hub-columns h2{font-size:36px}
.hub-stack>*+*{margin-top:28px}.hub-stack h3{font-size:26px;margin-bottom:12px}
.hub-stack ul,.hub-stack ol{padding-left:24px;margin:12px 0}.hub-stack li{padding:7px 0}
.hub-rule{border-top:1px solid #c9d7e8;padding-top:28px}
.hub-tint{background:#edf4ff}.hub-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-top:28px}
.hub-subnav{display:flex;flex-wrap:wrap;gap:8px 24px;padding:16px max(6vw,24px);font-size:16px;border-bottom:1px solid #dce6f3}.hub-subnav a{min-height:44px;display:inline-flex;align-items:center}.hub-subnav [aria-current]{color:#185ab7;border-bottom:2px solid var(--brand)}
.hub-scene{margin-top:60px}.hub-scene img{width:100%;max-height:480px;object-fit:cover}.hub-scene figcaption{font-size:14px;color:var(--muted);padding:12px 0}
.hub-detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:7vw}.hub-summary{background:#edf4ff;padding:32px;align-self:start;position:sticky;top:24px}.hub-summary h2{font-size:28px;margin-bottom:20px}.hub-summary p{margin:16px 0}
.hub-subjects{display:flex;flex-wrap:wrap;gap:12px 28px;list-style:none;padding:20px 0!important;border-block:1px solid #c9d7e8;font-size:22px;color:#185ab7}
.site-inner details{border-top:1px solid #c9d7e8;padding:10px 0}.site-inner summary{cursor:pointer;min-height:44px;padding:10px 0;font-weight:650}.site-inner details p{padding:12px 0 20px}
.hub-contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:6vw}.hub-field{margin-bottom:24px}.hub-field label{display:block;font-weight:650;margin-bottom:8px}
.site-inner select,.site-inner textarea,.site-inner button{font:inherit}.site-inner select,.site-inner textarea{width:100%;border:1px solid #9baec5;border-radius:6px;background:white;color:var(--ink);padding:14px;min-height:52px;letter-spacing:inherit}.site-inner textarea{resize:vertical;line-height:1.65}.site-inner button{cursor:pointer;border:0}.site-inner :focus-visible,.hub-home :focus-visible{outline:3px solid #185ab7;outline-offset:4px}.hub-page-hero :focus-visible,.hub-blue-paper :focus-visible{outline-color:white}
.hub-error{color:#ab2532;font-size:16px;min-height:26px}.hub-feedback{font-size:16px;line-height:1.7;margin-top:16px}.hub-message{background:#edf4ff;padding:32px;align-self:start}.hub-message h2{font-size:28px;margin-bottom:20px}.hub-message textarea{margin-top:12px}.hub-message .hub-note{margin-top:16px}
.site-inner [hidden]{display:none!important}.hub-home .review{justify-content:space-between}.hub-home .review a[aria-current]{background:none}
@media(prefers-reduced-motion:no-preference){.site-inner .hub-page-hero{animation:hub-arrive .65s cubic-bezier(.16,1,.3,1)}.site-inner .button,.site-inner .text-link{transition:background .2s,color .2s}.site-inner .button:hover{filter:brightness(.96)}@keyframes hub-arrive{from{background-position:0 12px}to{background-position:0 0}}}
@media(max-width:900px){.hub-detail-layout{grid-template-columns:1fr}.hub-summary{position:static}.hub-blue-paper,.hub-quiet-paper{padding:32px}.hub-contact-layout{grid-template-columns:1fr}.hub-profile-hero img{height:400px}.hub-columns{gap:5vw;grid-template-columns:.7fr 1.3fr}}
@media(max-width:700px){.hub-wrap{padding:60px 22px}.hub-intro,.hub-offer-pair,.hub-columns{grid-template-columns:1fr;gap:32px}.hub-intro .hub-portrait{max-width:400px}.hub-portrait img{height:380px}.hub-prose p,.hub-offer-pair p{font-size:16px}.hub-prose .hub-lead{font-size:20px}.hub-prose .hub-note{font-size:14px}.hub-section-title{display:block}.hub-section-title .text-link{margin-top:8px}.hub-offer-pair h3{font-size:28px}.hub-header{padding:14px 16px;gap:8px}.hub-header nav{font-size:12px;gap:8px}.hub-header .wordmark{font-size:16px}.hub-header .wordmark span{font-size:7px}.hub-header nav a{white-space:nowrap}.hub-page-hero{padding:52px 22px}.hub-page-hero p{font-size:18px}.hub-profile-hero{grid-template-columns:1fr;gap:24px}.hub-profile-hero img{height:380px;margin-bottom:-52px}.site-inner{font-size:16px}.hub-columns h2{font-size:30px}.hub-stack h3{font-size:24px}.hub-message{padding:24px}.hub-blue-paper,.hub-quiet-paper{padding:28px}.hub-home .a-nav nav a:first-child{display:inline-flex}.hub-home .a-nav{padding-left:16px;padding-right:16px}.hub-home .a-nav nav{gap:8px;font-size:11px}.hub-home .a-nav .wordmark{font-size:16px}.hub-home .a-nav nav a{white-space:nowrap}.hub-footer-links{padding:20px 22px;gap:8px 20px}.hub-scene{margin-top:36px}}