/* Private publication preview: artwork moves independently of every caption. */
html,body{overflow-x:clip}
.series-hero{background:var(--cream);position:relative;overflow:hidden}
.series-breadcrumb{display:flex;gap:12px;align-items:center;padding-top:20px;font-size:10px;color:#83796c}
.series-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:7%;align-items:center;min-height:555px;padding:28px 0 40px}
.series-copy .eyebrow{font-size:10px;margin-bottom:22px;letter-spacing:.15em}
.series-copy h1{font:400 clamp(44px,4.6vw,66px)/1.3 var(--serif);margin:0 0 19px;letter-spacing:.02em}
.series-intro{font-size:14px;line-height:1.95;color:#73695e;max-width:350px;margin-bottom:24px}
.series-index{display:grid;max-width:355px;border-top:1px solid #d4c9b8}
.publication-link{display:flex;justify-content:space-between;align-items:center;gap:14px;line-height:1.5;font-size:14px;padding:11px 0;border-bottom:1px solid #e4dccf;transition:color .25s,padding .5s var(--ease)}
.publication-link>span:last-child{font-size:16px;color:#988773;transition:transform .5s var(--ease)}
.publication-link:hover,.publication-link.is-showing{color:var(--accent)}
.series-index .publication-link:hover{padding-left:7px}
.publication-link:hover>span:last-child{transform:translate(3px,-3px);color:var(--accent)}
.series-showcase{position:relative;min-width:0}
.series-rotator{position:relative;height:385px;touch-action:pan-y;cursor:grab;isolation:isolate}
.rotator-slide{position:absolute;inset:0;display:grid;place-items:center;pointer-events:auto}
.rotator-slide[hidden]{display:none!important}
.slide-art{width:100%;min-width:0;will-change:transform}
.volume-pair{display:flex;align-items:center;justify-content:center;gap:42px;width:100%;max-width:535px;margin:auto;padding:25px 12px 12px;perspective:1600px;--mx:0;--my:0;--drag:0px}
.volume-cover{position:relative;border:0;padding:0;background:transparent;width:43%;flex:none;max-width:224px;cursor:zoom-in;perspective:1300px;touch-action:pan-y;--lean:-5deg;--rise:0px;--depth:0px}
.volume-cover:nth-child(2){--lean:6deg;--rise:12px}
.book-float{display:block;transform-style:preserve-3d;transform:translate3d(calc(var(--mx,0)*17px + var(--drag,0px)),calc(var(--my,0)*10px),0) rotateX(calc(var(--my,0)*-7deg)) rotateY(calc(var(--mx,0)*11deg));will-change:transform}
.volume-cover:nth-child(2) .book-float{transform:translate3d(calc(var(--mx,0)*24px + var(--drag,0px)),calc(var(--my,0)*15px),0) rotateX(calc(var(--my,0)*-5deg)) rotateY(calc(var(--mx,0)*14deg))}
.volume-cover .book-object{display:block;aspect-ratio:2480/3508;transform-style:preserve-3d;transform:translate3d(0,var(--rise),var(--depth)) rotateY(-17deg) rotateZ(var(--lean));filter:none;transition:transform .85s var(--ease)}
.volume-cover .book-front{box-shadow:10px 19px 25px #35271a20;backface-visibility:hidden;-webkit-backface-visibility:hidden}
.volume-cover .book-front img{width:100%;height:100%;object-fit:fill;user-select:none;-webkit-user-drag:none}
.volume-cover .book-spine{font-size:9px;letter-spacing:2px;padding-top:20px}
.volume-cover .book-pages{inset:2px -6px 0 4px}
.volume-cover .book-shine{background:linear-gradient(110deg,transparent 22%,#fff6 45%,transparent 68%);transform:translateX(calc(var(--mx,0)*35%));transition:none;opacity:.28}
.volume-cover:hover .book-object,.volume-cover:focus-visible .book-object{transform:translate3d(0,calc(var(--rise) - 12px),16px) rotateY(-6deg) rotateZ(calc(var(--lean)*.4))}
.volume-cover>.book-label{display:block;font-size:11px;line-height:1.7;margin-top:37px;color:#756b5f;min-height:19px}
.series-rotator .book-label{display:none}
.series-rotator .volume-pair{padding-block:25px 30px}
.hero-book-labels{display:flex;justify-content:center;gap:42px;max-width:535px;margin:14px auto 22px;padding-inline:12px;min-height:19px;font-size:11px;line-height:1.7;color:#756b5f}
.hero-book-labels>span{width:43%;max-width:224px;text-align:center}
.slide-caption{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:center;border-top:1px solid #cfc4b4;padding-top:17px;font-size:12px;line-height:1.7;color:#756954;min-height:45px}
.slide-caption>a{display:flex;gap:12px;align-items:center;font-size:11px;white-space:nowrap;color:#594b3c}
.slide-caption>a>span:last-child{font-size:18px}
.rotator-controls{display:flex;gap:20px;align-items:center;margin-top:16px}
.rotator-buttons{display:flex;gap:9px}
.rotator-buttons button,.workbook-step button{width:37px;height:37px;border:1px solid #cbbfae;border-radius:50%;background:transparent;font-size:19px;display:grid;place-items:center;padding:0;transition:background .3s,color .3s}
.rotator-buttons button:hover,.workbook-step button:hover{background:var(--accent);color:#fff;border-color:var(--accent)}
.rotator-dots{display:flex;gap:3px;margin-right:auto}
.rotator-dots button{width:29px;height:34px;background:none;border:0;padding:9px;display:grid;place-items:center}
.rotator-dots button:after{content:'';width:14px;height:2px;background:#c6b9a5;transition:background .3s,transform .5s}
.rotator-dots button[aria-pressed=true]:after{background:var(--accent);transform:scaleX(1.4)}
.series-motion{border:0;background:none;padding:9px 0;font-size:10px;color:#786e5d;white-space:nowrap}
.series-motion:before{content:'Ⅱ';margin-right:8px}.series-motion[aria-pressed=true]:before{content:'▷'}
.is-dragging,.is-dragging .volume-cover{cursor:grabbing!important;user-select:none}
.single-volume{display:flex;justify-content:center;padding:25px}.single-volume .volume-cover{width:65%}
.chapter-nav{position:sticky;top:74px;z-index:35;background:#fffdf9f0;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-block:1px solid #e3ddd3}
.chapter-nav>.page-wrap{display:flex;justify-content:space-between;gap:30px}
.chapter-nav .publication-link{font-size:12px;border:0;gap:12px;padding:17px 0;white-space:nowrap}
.chapter-nav .publication-link>span:last-child{font-size:12px;transform:rotate(90deg)}
.publication-chapter{padding:85px 0 65px;scroll-margin-top:32px;position:relative}
.publication-chapter+.publication-chapter{border-top:1px solid #ddd6cc}
.chapter-workbooks,.chapter-sound{background:var(--cream)}
.chapter-heading{display:flex;justify-content:space-between;gap:30px;align-items:center;margin-bottom:45px}
.chapter-heading .eyebrow{font-size:10px;letter-spacing:.1em;margin:0 0 13px}
.chapter-heading h2{font:400 clamp(27px,3vw,38px)/1.6 var(--serif);margin:0}
.chapter-back{display:flex;align-items:center;gap:20px;flex-shrink:0;font-size:11px;color:#8e8071}
.chapter-back>span:last-child{font-size:18px}
.chapter-lead{display:grid;grid-template-columns:1fr 1.08fr;gap:9%;align-items:center}
.chapter-art{min-width:0;padding:30px 0}
.chapter-art .volume-pair{max-width:430px;gap:37px}
.chapter-art .volume-cover{max-width:180px}
.chapter-summary{font:19px/1.85 var(--serif);color:#665544;margin-bottom:22px}
.chapter-text .prose p{font-size:14px;line-height:2.1}
.chapter-numbers{display:flex;gap:47px;border-top:1px solid #d5c9b7;margin-top:24px;padding-top:22px}
.chapter-numbers>span{display:flex;flex-direction:column;gap:8px;font-size:10px;letter-spacing:.05em;color:#8c7b69}
.chapter-numbers b{font:48px/1 var(--roman);color:var(--accent)}
.chapter-editorial{display:grid;grid-template-columns:1fr 1fr;gap:8%;margin-top:45px;padding-top:35px;border-top:1px solid #dbd4ca}
.chapter-editorial h3{font:400 23px/1.4 var(--serif);margin-bottom:25px}
.chapter-editorial .edition-ratio{margin-bottom:22px;border-top:0;padding-top:0;max-width:350px}
.chapter-editorial .edition-ratio strong{font-size:44px}.chapter-editorial .prose p{font-size:14px}
.chapter-copy-only{display:grid;grid-template-columns:.75fr 1.25fr;gap:10%}
.chapter-copy-only>.chapter-summary{font-size:24px;line-height:2;max-width:340px;border-left:1px solid #cdbda5;padding-left:26px}
.chapter-copy-only .prose p{font-size:14px}
.chapter-actions{display:flex;justify-content:end;gap:35px;margin-top:30px}.chapter-actions .text-link{font-size:12px}
.chapter-writing .chapter-art{order:2}.chapter-writing .chapter-text{order:1}
/* Twelve actual editions, one clear year / term selection. */
.workbook-workbench{display:grid;grid-template-columns:1.25fr .75fr;gap:9%;align-items:center;padding:6px 30px 25px}
.workbook-display{touch-action:pan-y;cursor:grab;min-width:0}
.workbook-display .volume-pair{max-width:570px;padding:35px 15px 20px;gap:45px}
.workbook-display .volume-cover{max-width:228px;width:42%}
.workbook-display .volume-cover:not(.is-selected) .book-object{transform:translate3d(0,12px,-55px) rotateY(-23deg) rotateZ(var(--lean)) scale(.94)}
.workbook-display .volume-cover.is-selected .book-object{transform:translate3d(0,-7px,22px) rotateY(-9deg) rotateZ(calc(var(--lean)*.65))}
.workbook-display .volume-cover.is-selected .book-label{color:var(--accent)}
.workbook-picker .eyebrow{font-size:10px;line-height:1.8;letter-spacing:.08em;margin-bottom:24px}
.workbook-current{font:400 46px/1.3 var(--serif);margin:0 0 29px;color:#584b3e}
.workbook-years{display:flex;gap:4px;border-block:1px solid #d7cbb9;padding:5px 0;margin-bottom:24px}
.workbook-years button{flex:1;min-width:0;background:none;border:0;padding:13px 4px;font-size:13px;position:relative}
.workbook-years button:after{content:'';position:absolute;bottom:-6px;left:10%;right:10%;height:2px;background:transparent;transition:background .3s}
.workbook-years button[aria-pressed=true]{color:var(--accent)}.workbook-years button[aria-pressed=true]:after{background:var(--accent)}
.workbook-terms{display:flex;gap:10px;margin-bottom:26px}
.workbook-terms button{border:1px solid #d8ccb9;background:none;border-radius:3px;padding:11px 22px;font-size:12px;transition:background .35s,color .35s}
.workbook-terms button[aria-pressed=true]{background:#7a493f;color:#fff;border-color:#7a493f}
.workbook-open{background:none;border:0;border-bottom:1px solid #8f7f6b;padding:10px 0;font-size:12px;gap:40px}
.workbook-step{display:flex;align-items:center;gap:24px;margin-top:35px;font:11px var(--sans);color:#857563}
.workbook-catalogue{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:15px;border-block:1px solid #d9cdbb;padding:28px 4px 21px;margin-top:25px}
.workbook-catalogue button{padding:5px 5px 10px;background:none;border:0;min-width:0;position:relative;transition:transform .55s var(--ease)}
.workbook-catalogue img{width:100%;aspect-ratio:2480/3508;object-fit:cover;box-shadow:3px 5px 9px #3f2f221a;transition:box-shadow .4s}
.workbook-catalogue button>span{display:block;font-size:10px;line-height:1.5;white-space:nowrap;margin-top:13px;color:#8d7964;text-align:center}
.workbook-catalogue button:hover{transform:translateY(-7px)}
.workbook-catalogue button[aria-pressed=true]:after{content:'';position:absolute;bottom:0;left:18%;right:18%;height:2px;background:var(--accent)}
.workbook-catalogue button[aria-pressed=true]>span{color:var(--accent)}
.workbook-catalogue button[aria-pressed=true] img{box-shadow:0 0 0 2px #faf7f1,0 0 0 3px #a45140,4px 9px 12px #3f2f2222}
.workbook-summary{max-width:750px;margin:44px 0 28px}
.workbook-prose{display:grid;grid-template-columns:1fr 1fr;gap:20px 8%;align-items:start}.workbook-prose p{font-size:14px;margin:0;line-height:2.1}
[data-langroot=en] .series-copy h1{font:400 clamp(47px,4.5vw,65px)/1.03 var(--roman);letter-spacing:-.025em}
[data-langroot=en] .series-copy h1 em{color:var(--accent);font-weight:400}
[data-langroot=en] .chapter-heading h2,[data-langroot=en] .chapter-editorial h3,[data-langroot=en] .workbook-current{font-family:var(--roman)}
[data-langroot=en] .chapter-summary{font:22px/1.6 var(--roman)}
@media(max-width:1100px){.series-grid{gap:6%;min-height:525px}.series-copy h1{font-size:48px}.series-intro{font-size:13px}.series-rotator{height:310px}.series-rotator .volume-pair{max-width:450px;gap:32px}.volume-cover{max-width:180px}.hero-book-labels{gap:32px;font-size:10px}.slide-caption{font-size:10px;gap:14px}.slide-caption>a{font-size:10px}.publication-link{font-size:13px;padding-block:10px}.chapter-lead{gap:6%}.chapter-heading h2{font-size:30px}.chapter-art .volume-pair{gap:30px}.chapter-numbers{gap:30px}.workbook-workbench{padding-inline:0;gap:6%}.workbook-current{font-size:40px}.workbook-catalogue{gap:9px}.workbook-catalogue button{padding-inline:2px}}
@media(max-width:900px){.series-grid{grid-template-columns:.88fr 1.12fr;gap:5%}.series-rotator{height:265px}.series-rotator .volume-cover{max-width:148px}.series-copy h1{font-size:42px}.series-copy .eyebrow{font-size:8px}.series-intro{font-size:12px}.series-index{max-width:none}.hero-book-labels{font-size:9px;gap:25px}.slide-caption{grid-template-columns:1fr;gap:4px;min-height:65px}.slide-caption>a{font-size:10px}.rotator-controls{gap:10px}.rotator-buttons button{width:33px;height:33px}.rotator-dots button{width:24px;padding:5px}.series-motion{font-size:9px}.chapter-nav>.page-wrap{gap:16px}.chapter-nav .publication-link{font-size:11px;gap:5px}.chapter-heading h2{font-size:27px}.chapter-back{font-size:10px;gap:10px}.chapter-lead{gap:5%}.chapter-art .volume-pair{gap:25px}.chapter-summary{font-size:17px}.chapter-text .prose p{font-size:13px}.chapter-numbers{gap:22px}.chapter-numbers b{font-size:40px}.chapter-copy-only{gap:6%}.workbook-workbench{gap:5%;grid-template-columns:1.05fr .95fr}.workbook-display .volume-pair{gap:27px;padding-inline:5px}.workbook-current{font-size:36px;margin-bottom:24px}.workbook-picker .eyebrow{font-size:9px;margin-bottom:14px}.workbook-step{margin-top:22px}.workbook-catalogue{grid-template-columns:repeat(12,65px);overflow-x:auto;overscroll-behavior-x:contain;gap:13px;padding-inline:8px;scrollbar-width:thin;scrollbar-color:#c0aa8a transparent}.workbook-catalogue button>span{font-size:10px}}
@media(max-width:650px){.series-grid{grid-template-columns:1fr;gap:15px;padding:25px 0 27px;min-height:0}.series-copy h1{font-size:48px;margin-bottom:14px}.series-copy .eyebrow{font-size:8px;margin-bottom:15px}.series-intro{font-size:13px;max-width:315px;line-height:1.9;margin-bottom:20px}.series-index{grid-template-columns:1fr 1fr;gap:0 22px}.series-index .publication-link{font-size:13px;padding:11px 0}.series-index .publication-link:last-child{grid-column:1/3}.series-breadcrumb{font-size:9px;padding-top:16px}.series-rotator{height:280px}.series-rotator .volume-pair{max-width:345px;gap:33px;padding-inline:14px}.series-rotator .volume-cover{max-width:140px}.hero-book-labels{font-size:10px;margin:14px auto 18px;gap:33px;padding-inline:14px}.slide-caption{grid-template-columns:1fr auto;gap:13px;font-size:10px;min-height:50px;line-height:1.65}.slide-caption>a{font-size:9px;gap:8px}.rotator-controls{gap:16px;margin-top:12px}.rotator-dots button{width:26px}.rotator-buttons button{width:36px;height:36px}.series-motion{font-size:9px}.chapter-nav{top:69px;overflow-x:auto;scrollbar-width:none}.chapter-nav>.page-wrap{width:max-content;min-width:calc(100% - 40px);margin-inline:20px;gap:26px}.chapter-nav .publication-link{font-size:11px;padding-block:13px}.chapter-nav .publication-link>span:last-child{display:none}.publication-chapter{padding:52px 0 42px;scroll-margin-top:24px}.chapter-heading{display:block;margin-bottom:23px}.chapter-heading .eyebrow{font-size:9px;margin-bottom:10px}.chapter-heading h2{font-size:27px}.chapter-back{margin-top:17px;justify-content:start;gap:20px}.chapter-lead{grid-template-columns:1fr;gap:28px}.chapter-art{padding:10px 0 15px}.chapter-art .volume-pair{max-width:330px;gap:34px}.chapter-art .volume-cover{max-width:139px}.volume-cover>.book-label{font-size:10px;margin-top:33px}.chapter-summary{font-size:18px;line-height:1.95;margin-bottom:19px}.chapter-text .prose p{font-size:14px;line-height:2.15}.chapter-numbers{gap:45px}.chapter-numbers b{font-size:43px}.chapter-editorial{grid-template-columns:1fr;gap:30px;margin-top:30px;padding-top:28px}.chapter-writing .chapter-art{order:0}.chapter-writing .chapter-text{order:1}.chapter-copy-only{grid-template-columns:1fr;gap:20px}.chapter-copy-only>.chapter-summary{font-size:23px;max-width:none;margin-bottom:8px;padding-left:22px}.chapter-actions{margin-top:25px}.chapter-actions .text-link{font-size:11px}.workbook-workbench{grid-template-columns:1fr;gap:16px;padding:0}.workbook-display .volume-pair{max-width:350px;gap:35px;padding:30px 8px 20px}.workbook-display .volume-cover{max-width:144px}.workbook-picker{padding-top:15px}.workbook-picker .eyebrow{margin-bottom:15px}.workbook-current{font-size:36px;margin-bottom:20px}.workbook-years{margin-bottom:20px}.workbook-terms{margin-bottom:20px}.workbook-terms button{padding:12px 25px}.workbook-step{float:right;margin-top:0;gap:18px}.workbook-catalogue{margin-top:24px;clear:both;padding-top:25px}.workbook-summary{margin-top:30px}.workbook-prose{grid-template-columns:1fr;gap:20px}[data-langroot=en] .series-copy h1{font-size:52px}[data-langroot=en] .series-index .publication-link{font-size:12px}[data-langroot=en] .chapter-heading h2{font-size:30px}[data-langroot=en] .slide-caption{font-size:9px}[data-langroot=en] .slide-caption>a{font-size:9px;max-width:120px;white-space:normal}}
@media(prefers-reduced-motion:reduce){.book-float{transform:none!important}.volume-cover .book-object{transition:none!important}.book-shine{display:none}}
/* Continuous gallery: neighbouring covers stay in view throughout the gesture. */
.shelf-heading{display:flex;justify-content:space-between;align-items:end;gap:60px;padding:28px 0 24px}
.shelf-heading .eyebrow{font-size:9px;letter-spacing:.14em;margin-bottom:12px}
.shelf-heading h1{font:400 clamp(37px,4vw,54px)/1.3 var(--serif);margin:0;letter-spacing:.025em}
.shelf-heading .series-intro{font-size:13px;line-height:1.9;margin:0;max-width:350px;padding-bottom:3px}
.series-index{display:grid;grid-template-columns:repeat(5,1fr);gap:35px;max-width:none;border-top:1px solid #d7cec1}
.series-index .publication-link{font-size:13px;padding:14px 0 13px;border-bottom:0;justify-content:start}
.series-index .publication-link>span:last-child{display:none}
.series-index .publication-link:hover{padding-left:0}
.series-index .publication-link{position:relative}
.series-index .publication-link:after{content:'';position:absolute;left:0;bottom:0;width:25px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease)}
.series-index .publication-link:hover:after,.series-index .publication-link.is-showing:after{transform:scaleX(1)}
.shelf-viewport{position:relative;overflow-x:auto;overflow-y:hidden;scrollbar-width:none;overscroll-behavior-x:contain;touch-action:pan-x pan-y;cursor:grab;-webkit-overflow-scrolling:touch;isolation:isolate;scroll-behavior:auto}
.shelf-viewport::-webkit-scrollbar{display:none}
.shelf-viewport:focus-visible{outline-offset:-4px}
.shelf-track{display:flex;align-items:start;position:relative;width:max-content;gap:43px;padding:39px max(56px,calc((100vw - 1304px)/2)) 22px;min-width:100%;perspective:1800px}
.shelf-book{width:clamp(176px,16.5vw,235px);max-width:none;flex:none;--hover:0px;--card-turn:-10deg;--card-lift:0px;--card-scale:1;--mx:0;--my:0;--drag:0px}
.shelf-book .book-float,.shelf-book:nth-child(2) .book-float{transform:translate3d(calc(var(--mx)*6px),calc(var(--card-lift) + var(--hover) + var(--my)*4px),0) rotateX(calc(var(--my)*-5deg));transition:transform .35s var(--ease)}
.shelf-book .book-object,.shelf-book:hover .book-object,.shelf-book:focus-visible .book-object{transform:rotateY(var(--card-turn)) rotateZ(calc(var(--card-turn)*.055)) scale(var(--card-scale));transition:none}
.shelf-book:hover,.shelf-book:focus-visible{--hover:-10px}
.shelf-book .book-front{box-shadow:8px 17px 21px #3a2c201c}
.shelf-book .book-label{font-size:11px;line-height:1.8;margin-top:29px;min-height:21px;text-align:center;white-space:nowrap}
.shelf-book.is-central .book-label{color:#8f3930}
.hero-shelf .shelf-book{cursor:pointer;touch-action:pan-x pan-y}
.shelf-controls{display:flex;justify-content:flex-end;padding:0 0 16px}
.shelf-controls .series-motion{min-height:44px;padding:10px 12px;font-size:11px}
.shelf-footer{display:flex;align-items:center;gap:22px;padding:15px 0 23px;border-top:1px solid #d7cec1;line-height:1.6;font-size:11px;color:#827460}
.shelf-current{font-size:12px;color:#7a4a40}.shelf-series-link{border-bottom:1px solid #b6a590;padding-bottom:2px}
.shelf-footer .series-motion{margin-left:auto}
.shelf-meta{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #d7cec1;padding-top:19px}
.shelf-meta p{font-size:11px;letter-spacing:.06em;color:#847564;margin:0}
.workbook-shelf{margin:0 -28px;border-bottom:1px solid #ded4c6}
.workbook-shelf .shelf-track{padding:42px 28px 28px;gap:40px}
.workbook-shelf .shelf-book{width:215px}
.workbook-summary{margin-top:37px}
[data-langroot=en] .shelf-heading h1{font-family:var(--roman);font-size:clamp(36px,3.5vw,50px);letter-spacing:-.025em}
@media(max-width:900px){.shelf-heading{gap:30px}.shelf-heading .series-intro{font-size:12px}.series-index{gap:18px}.series-index .publication-link{font-size:12px}.shelf-track{padding-inline:24px;gap:32px}.shelf-book{width:180px}.workbook-shelf .shelf-book{width:190px}}
@media(max-width:650px){.shelf-heading{display:block;padding:23px 0 17px}.shelf-heading .eyebrow{font-size:8px;margin-bottom:10px}.shelf-heading h1{font-size:41px}.shelf-heading .series-intro{font-size:12px;line-height:1.8;max-width:none;margin-top:14px}.shelf-heading .series-intro br{display:none}.series-index{grid-template-columns:repeat(3,1fr);gap:0 15px}.series-index .publication-link,.series-index .publication-link:last-child{grid-column:auto;font-size:11px;padding:11px 0}.series-index .publication-link:after{height:1px;width:18px}.shelf-track{padding:35px 25px 24px;gap:32px}.shelf-book{width:164px}.shelf-book .book-label{font-size:10px;margin-top:27px}.shelf-footer{padding:15px 0 19px;gap:15px;font-size:10px}.shelf-current{font-size:11px}.shelf-footer .series-motion{font-size:8px}.workbook-shelf{margin-inline:-20px}.workbook-shelf .shelf-track{padding:33px 24px 26px;gap:31px}.workbook-shelf .shelf-book{width:174px}.shelf-meta p{font-size:10px}.workbook-summary{margin-top:28px}[data-langroot=en] .shelf-heading h1{font-size:36px}[data-langroot=en] .series-index .publication-link{font-size:10px}}

/* Publication navigation shares the warm paper and cinnabar palette. */
html{scroll-padding-top:150px}
.publication-chapter{scroll-margin-top:0}
.series-index{gap:12px;border:0;padding:3px 0 8px}
.series-index .publication-link{min-height:62px;gap:12px;padding:16px 20px;font-size:15px;font-weight:500;justify-content:space-between;border:1px solid #d7c9b8;border-radius:7px;background:#fffdf8;box-shadow:0 2px 0 #d4c5b22b;color:#51463a;transition:background .25s,border-color .25s,box-shadow .3s,transform .3s var(--ease)}
.series-index .publication-link>span:last-child{display:block;flex:none;font-size:19px;color:#9f6754;transform:none}
.series-index .publication-link:after{display:none}
.series-index .publication-link:hover,.series-index .publication-link:focus-visible{padding:16px 20px;background:#fff;border-color:#ac4a3b;color:var(--accent);transform:translateY(-3px);box-shadow:0 6px 14px #694c2810}
.series-index .publication-link:hover>span:last-child{transform:translate(2px,2px)}
.series-index .publication-link.is-showing{background:#f3e7df;border-color:#b88270;color:#8d302b}
.chapter-nav{background:#fffdf9f5;box-shadow:0 4px 14px #59422c08}
.chapter-nav>.page-wrap{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;padding-block:8px}
.chapter-nav .publication-link{min-height:44px;justify-content:center;padding:10px 14px;gap:8px;border:1px solid #ded3c6;border-radius:5px;background:#faf6ef;color:#655747;font-size:13px;white-space:normal;text-align:center;transition:background .25s,border-color .25s,color .25s}
.chapter-nav .publication-link>span:last-child{display:none}
.chapter-nav .publication-link:hover{background:#f0e4d8;border-color:#bfa990;color:#7b312a}
.chapter-nav .publication-link.is-current-section{background:var(--accent);border-color:var(--accent);color:#fffdf8}
.shelf-footer{gap:20px;padding-block:18px 24px}
.shelf-current{font-size:13px}
.shelf-series-link,.chapter-actions .text-link{display:inline-flex;align-items:center;justify-content:center;gap:25px;min-height:46px;padding:11px 19px;border:1px solid var(--accent);border-radius:5px;background:var(--accent);color:#fffdf8;font-size:13px;font-weight:500;line-height:1.6;transition:background .25s,box-shadow .25s,transform .3s var(--ease)}
.shelf-series-link:after{content:'↘';font-size:18px;line-height:1}
.shelf-series-link:hover,.chapter-actions .text-link:hover{background:#902623;color:#fff;border-color:#902623;box-shadow:0 4px 10px #81332520;transform:translateY(-2px)}
.chapter-actions .text-link>span:last-child{color:inherit}
.chapter-back{display:inline-flex;min-height:44px;padding:10px 15px;gap:17px;font-size:12px;color:#745342;border:1px solid #d3c0ab;background:#fffcf5;border-radius:5px;transition:background .25s,border-color .25s}
.chapter-back:hover{color:var(--accent);border-color:#b88270;background:#f7ede3}
.shelf-footer .series-motion{min-height:44px;padding:10px 14px;border:1px solid #d7c9b8;border-radius:5px;background:#fffaf2;color:#705d48;font-size:11px;transition:background .25s,border-color .25s}
.shelf-footer .series-motion:hover{background:#f0e4d8;border-color:#bfa990}
.publication-link:focus-visible,.shelf-series-link:focus-visible,.chapter-back:focus-visible,.series-motion:focus-visible,.chapter-actions .text-link:focus-visible{outline:2px solid #91342c;outline-offset:4px}
@media(max-width:1000px){
 .series-index{gap:9px}
 .series-index .publication-link,.series-index .publication-link:hover{padding:14px 12px;font-size:13px;gap:8px}
 .chapter-nav .publication-link{font-size:12px;padding-inline:8px}
}
@media(max-width:650px){
 html{scroll-padding-top:190px}
 .series-index{grid-template-columns:repeat(6,minmax(0,1fr));gap:8px;padding-top:4px}
 .series-index .publication-link,.series-index .publication-link:hover,.series-index .publication-link:last-child{grid-column:span 2;min-height:52px;padding:12px 8px;font-size:12px;gap:4px;line-height:1.45}
 .series-index .publication-link:nth-last-child(-n+2){grid-column:span 3}
 .series-index .publication-link>span:last-child{font-size:13px}
 .chapter-nav{overflow:visible}
 .chapter-nav>.page-wrap{width:calc(100% - 40px);min-width:0;grid-template-columns:repeat(6,minmax(0,1fr));gap:6px;padding-block:8px;margin-inline:20px}
 .chapter-nav .publication-link{grid-column:span 2;min-height:40px;font-size:12px;padding:8px 6px}
 .chapter-nav .publication-link:nth-last-child(-n+2){grid-column:span 3}
 .shelf-footer{flex-wrap:wrap;gap:12px;padding:16px 0 20px}
 .shelf-current{width:100%;font-size:13px}
 .shelf-series-link{font-size:12px;gap:17px;padding:10px 14px}
 .shelf-footer .series-motion{font-size:11px;padding:10px 12px}
 .chapter-back{font-size:12px}
 .chapter-actions .text-link{font-size:13px}
 [data-langroot=en] .series-index .publication-link{font-size:12px}
 [data-langroot=en] .chapter-nav .publication-link{font-size:11px}
}
@media(prefers-reduced-motion:reduce){.series-index .publication-link,.shelf-series-link,.chapter-actions .text-link{transition:none;transform:none!important}}