:root{--paper:#f3eee4;--paper2:#fbf8f2;--ink:#171513;--muted:#6f675f;--red:#8b171b;--red2:#6d1014;--line:#c8bcad;--shadow:0 22px 62px rgba(35,27,20,.14);--max:1200px;--read:790px;--serif:Georgia,"Times New Roman",serif;--display:"Baskerville","Times New Roman",serif;--ui:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--paper);scroll-padding-top:80px}body{margin:0;color:var(--ink);background:radial-gradient(circle at 10% 0%,rgba(255,255,255,.72),transparent 33rem),radial-gradient(circle at 92% 15%,rgba(255,255,255,.48),transparent 28rem),var(--paper);font:18px/1.66 var(--serif);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;overflow-wrap:anywhere}img{max-width:100%;height:auto}a{color: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}a:focus-visible,summary:focus-visible{outline:3px solid var(--red);outline-offset:4px}.skip-link{position:absolute;top:-80px;left:14px;z-index:100;background:var(--ink);color:#fff;padding:10px 14px;font-family:var(--ui)}.skip-link:focus{top:14px}.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(112,92,75,.2);background:rgba(243,238,228,.95);backdrop-filter:blur(14px)}.nav{max-width:var(--max);margin:auto;padding:13px max(20px,env(safe-area-inset-right)) 13px max(20px,env(safe-area-inset-left));display:grid;grid-template-columns:auto 1fr auto;gap:26px;align-items:center}.brand{text-decoration:none;font:500 18px/1 var(--display);letter-spacing:.2em;white-space:nowrap}.nav-links{justify-self:center;display:flex;gap:25px;font:700 12px/1 var(--ui);text-transform:uppercase;letter-spacing:.08em}.nav-links a{text-decoration:none}.nav-links a:hover,.lang-link:hover{color:var(--red)}.language-switch{display:flex;align-items:center;border:1px solid var(--line);border-radius:999px;overflow:hidden}.lang-link{min-width:40px;padding:8px 9px;text-align:center;text-decoration:none;font:800 11px/1 var(--ui);letter-spacing:.08em;border-right:1px solid var(--line)}.lang-link:last-child{border-right:0}.lang-link.active{background:var(--red);color:#fff}.mobile-nav{display:none;position:relative}.mobile-nav summary{list-style:none;width:44px;height:44px;border:1px solid var(--line);display:grid;place-content:center;gap:4px;cursor:pointer}.mobile-nav summary::-webkit-details-marker{display:none}.mobile-nav summary span{display:block;width:19px;height:1.5px;background:var(--ink)}.mobile-nav-panel{position:absolute;right:0;top:52px;min-width:min(86vw,350px);background:var(--paper2);border:1px solid var(--line);box-shadow:var(--shadow);padding:12px}.mobile-nav-panel>a{display:flex;align-items:center;min-height:48px;padding:8px 10px;text-decoration:none;font:700 13px/1.3 var(--ui);text-transform:uppercase;letter-spacing:.08em;border-bottom:1px solid var(--line)}.mobile-language{padding:14px 8px 4px}.mobile-language .language-switch{width:max-content}.container{max-width:var(--max);margin:auto}.reading{max-width:var(--read);margin:auto}.section{padding:100px max(28px,env(safe-area-inset-right)) 100px max(28px,env(safe-area-inset-left))}.section--tight{padding-top:64px;padding-bottom:64px}.divider{border:0;border-top:1px solid rgba(112,92,75,.23);margin:0}.eyebrow{margin:0 0 17px;color:var(--red);font:800 12px/1.2 var(--ui);letter-spacing:.18em;text-transform:uppercase}.section-title{margin:0;font:500 clamp(40px,5vw,70px)/1.04 var(--display);text-wrap:balance}.lead{margin:24px 0 0;font-size:clamp(20px,2vw,26px);line-height:1.55}.lead-small{font-size:22px;line-height:1.55}.hero{padding:70px max(28px,env(safe-area-inset-right)) 92px max(28px,env(safe-area-inset-left))}.hero-grid{max-width:var(--max);margin:auto;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(320px,.68fr);gap:7vw;align-items:center}.hero h1{margin:0;font:500 clamp(54px,7vw,104px)/.94 var(--display);letter-spacing:.01em;text-wrap:balance}.hero .book-name{margin:30px 0 0;font:500 clamp(26px,2.7vw,39px)/1.2 var(--display)}.hero .subtitle,.book-copy .subtitle,.essay-subtitle{margin:18px 0 0;font-style:italic;font-size:clamp(20px,2vw,28px);line-height:1.42}.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:13px 20px;border:1px solid var(--ink);text-decoration:none;text-align:center;font:800 12px/1.2 var(--ui);text-transform:uppercase;letter-spacing:.1em;transition:.15s}.button:hover{transform:translateY(-1px)}.button--primary{background:var(--red);border-color:var(--red);color:#fff}.button--primary:hover{background:var(--red2)}.button--ghost{background:rgba(255,255,255,.22)}.hero-cover-wrap{position:relative;perspective:1300px}.hero-cover{width:min(100%,465px);display:block;margin:auto;filter:drop-shadow(0 28px 35px rgba(42,30,20,.22));transform:rotateY(-4deg)}.timeline{margin-top:46px;display:grid;grid-template-columns:repeat(4,1fr);max-width:760px}.timeline-item{position:relative;padding-top:16px;color:var(--red);font:500 20px/1 var(--display);letter-spacing:.08em}.timeline-item:not(:last-child)::after{content:"";position:absolute;top:3px;left:0;width:100%;height:1px;background:var(--line)}.timeline-item::before{content:"";position:absolute;top:0;left:0;width:7px;height:7px;border-radius:50%;background:var(--red)}.equations{margin-top:50px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}.equation{padding:30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:164px;display:flex;flex-direction:column;justify-content:space-between;background:rgba(255,255,255,.16)}.equation p{margin:0;font:500 clamp(25px,3vw,37px)/1.2 var(--display)}.eq{color:var(--red);padding:0 .2em}.equation small{margin-top:18px;color:var(--muted);font:13px/1.48 var(--ui)}.book-section{background:rgba(255,255,255,.2)}.book-grid{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:7vw;align-items:start}.cover-gallery{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}.cover-gallery figure{margin:0}.cover-gallery img{display:block;width:100%;box-shadow:var(--shadow)}.cover-gallery figcaption{margin-top:9px;color:var(--muted);font:12px/1.4 var(--ui)}.spine-figure{grid-column:1/-1;width:min(150px,34%);justify-self:center}.spine-image{box-shadow:0 16px 40px rgba(35,27,20,.10)!important}.book-copy h2{margin:0;font:500 clamp(42px,5vw,70px)/1.04 var(--display)}.book-copy p{color:#342e29}.meta-list{margin:28px 0;padding:0;list-style:none;border-top:1px solid var(--line)}.meta-list li{display:grid;grid-template-columns:180px 1fr;gap:18px;padding:13px 0;border-bottom:1px solid var(--line)}.meta-list strong{font:800 12px/1.5 var(--ui);text-transform:uppercase;letter-spacing:.08em}.meta-list span{font-size:16px}.note{color:var(--muted)!important;font:14px/1.55 var(--ui)!important}.sample-section{background:linear-gradient(180deg,rgba(139,23,27,.025),rgba(255,255,255,.16))}.sample-grid{margin-top:50px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start}.sample-page{position:relative;background:var(--paper2);border:1px solid #d6c9ba;padding:clamp(30px,4vw,52px);min-height:610px;box-shadow:0 18px 50px rgba(35,27,20,.08)}.sample-page:first-child{grid-column:1/-1;max-width:740px;width:100%;justify-self:center}.sample-page-no{position:absolute;right:18px;top:16px;color:var(--muted);font:800 11px/1 var(--ui);letter-spacing:.1em}.sample-page-text{white-space:pre-line;font-size:17px;line-height:1.58}.sample-page:first-child .sample-page-text{text-align:center;font:500 23px/1.55 var(--display)}.sample-source-note{max-width:760px;margin:24px auto 0;text-align:center;color:var(--muted);font:13px/1.5 var(--ui)}.essay-intro{background:rgba(255,255,255,.21)}.essay-teaser{display:grid;grid-template-columns:minmax(0,1fr) minmax(220px,.35fr);gap:7vw;align-items:center}.essay-teaser blockquote,.essay-page-hero blockquote{margin:28px 0 0;padding-left:20px;border-left:2px solid var(--red);font:500 clamp(24px,3vw,34px)/1.38 var(--display)}.essay-cover-mini{width:min(100%,330px);justify-self:center;box-shadow:var(--shadow)}.buy-box{border:1px solid var(--line);padding:30px;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;background:rgba(255,255,255,.18)}.buy-box h2{margin:0;font:500 38px/1.1 var(--display)}.buy-box p{margin:10px 0 0;color:var(--muted)}.status-pill{padding:7px 10px;border:1px solid var(--line);font:800 11px/1 var(--ui);letter-spacing:.1em}.about-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:8vw;align-items:start}.monogram{width:160px;aspect-ratio:1;display:grid;place-items:center;border:1px solid var(--line);font:500 60px/1 var(--display);color:var(--red)}.faq{margin-top:42px}.faq details{border-top:1px solid var(--line);padding:18px 0}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;list-style:none;font:500 23px/1.35 var(--display)}.faq summary::-webkit-details-marker{display:none}.faq summary::after{content:"+";float:right;color:var(--red);font-family:var(--ui)}.faq details[open] summary::after{content:"–"}.faq p{max-width:820px;color:#3c352f}.essay-page-hero{padding:72px max(28px,env(safe-area-inset-right)) 68px max(28px,env(safe-area-inset-left));border-bottom:1px solid var(--line)}.essay-page-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.7fr);gap:7vw;align-items:start}.essay-page-hero h1{margin:0;font:500 clamp(54px,7vw,96px)/.96 var(--display);text-wrap:balance}.essay-toc{border:1px solid var(--line);padding:24px 26px;background:rgba(255,255,255,.24);max-height:650px;overflow:auto}.essay-toc-title{margin:0 0 13px;color:var(--red);font:800 12px/1.2 var(--ui);letter-spacing:.16em;text-transform:uppercase}.essay-toc ol{margin:0;padding:0;list-style:none}.essay-toc li{border-top:1px solid rgba(197,185,171,.75)}.essay-toc li:first-child{border-top:0}.essay-toc a{display:block;padding:9px 0;text-decoration:none;font:13px/1.4 var(--ui)}.essay-toc a:hover{color:var(--red)}.essay-reader{max-width:var(--read);margin:78px auto 0;padding:0 max(28px,env(safe-area-inset-right))}.essay-section{padding:0 0 58px;margin:0 0 58px;border-bottom:1px solid var(--line);scroll-margin-top:94px}.essay-section:last-child{border-bottom:0}.essay-section h2{margin:0 0 28px;font:500 clamp(34px,4vw,54px)/1.08 var(--display);text-wrap:balance}.essay-section p{margin:0 0 18px;line-height:1.72}.essay-chapter-no{margin:0 0 13px!important;color:var(--red);font:800 12px/1.2 var(--ui)!important;letter-spacing:.16em;text-transform:uppercase}.essay-data{white-space:pre-line;margin:26px 0;padding:20px 22px;border-left:3px solid var(--red);background:rgba(139,23,27,.04);font:15px/1.58 var(--ui);overflow-x:auto}.site-footer{border-top:1px solid rgba(112,92,75,.25);padding:56px max(28px,env(safe-area-inset-right)) calc(64px + env(safe-area-inset-bottom)) max(28px,env(safe-area-inset-left))}.footer-grid{max-width:var(--max);margin:auto;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:end}.footer-brand{font:500 27px/1 var(--display);letter-spacing:.16em}.footer-copy{margin:14px 0 0;color:var(--muted);font:13px/1.55 var(--ui);max-width:680px}.footer-links{display:flex;gap:18px;flex-wrap:wrap;font:12px/1 var(--ui);text-transform:uppercase;letter-spacing:.08em}.footer-links a{text-decoration:none}.footer-links a:hover{color:var(--red)}
@media(max-width:920px){.nav{grid-template-columns:auto 1fr auto auto;gap:12px}.nav-links{display:none}.mobile-nav{display:block}.hero-grid,.book-grid,.essay-teaser,.about-grid,.essay-page-grid{grid-template-columns:1fr}.hero-cover-wrap{max-width:460px;margin:24px auto 0}.book-copy{order:-1}.cover-gallery{max-width:720px;margin:auto}.essay-cover-mini{display:none}.essay-toc{max-height:none}.sample-grid{grid-template-columns:1fr 1fr}.essay-reader{margin-top:64px}}
@media(max-width:680px){html{scroll-padding-top:70px}body{font-size:17px;line-height:1.62}.nav{grid-template-columns:auto 1fr auto;padding:10px max(16px,env(safe-area-inset-right))}.nav>.language-switch{display:none}.brand{font-size:15px;letter-spacing:.15em}.hero{padding:42px max(20px,env(safe-area-inset-right)) 68px max(20px,env(safe-area-inset-left))}.section{padding:72px max(20px,env(safe-area-inset-right))}.section--tight{padding-top:54px;padding-bottom:54px}.hero h1{font-size:clamp(44px,14vw,66px)}.hero .book-name{font-size:27px}.hero .subtitle{font-size:20px}.cta-row{display:grid;grid-template-columns:1fr}.button{width:100%;min-height:52px}.timeline{grid-template-columns:1fr;gap:22px;border-left:1px solid var(--line);padding-left:20px;margin-left:4px}.timeline-item{padding:0}.timeline-item:not(:last-child)::after{display:none}.timeline-item::before{top:7px;left:-24px}.equations{grid-template-columns:1fr}.equation{min-height:132px;padding:24px}.cover-gallery{grid-template-columns:1fr}.cover-gallery figure{max-width:450px;margin:auto}.spine-figure{width:115px}.meta-list li{grid-template-columns:1fr;gap:3px}.sample-grid{grid-template-columns:1fr;gap:20px}.sample-page:first-child{grid-column:auto}.sample-page{min-height:auto;padding:34px 25px}.sample-page-text{font-size:16px}.sample-page:first-child .sample-page-text{font-size:21px}.buy-box{grid-template-columns:1fr;padding:24px}.about-grid .monogram{width:120px;font-size:46px}.essay-page-hero{padding:48px max(20px,env(safe-area-inset-right)) 52px max(20px,env(safe-area-inset-left))}.essay-page-hero h1{font-size:clamp(44px,14vw,64px)}.essay-toc{padding:22px 20px}.essay-reader{padding:0 max(20px,env(safe-area-inset-right));margin-top:54px}.essay-section{padding-bottom:46px;margin-bottom:46px}.essay-section h2{font-size:36px}.essay-data{font-size:13px;padding:18px}.footer-grid{grid-template-columns:1fr}.footer-links{margin-top:10px}.faq summary{font-size:21px}}
@media(max-width:390px){.hero,.section,.essay-page-hero,.essay-reader{padding-left:16px;padding-right:16px}.hero h1,.essay-page-hero h1{font-size:42px}.section-title{font-size:38px}.sample-page{padding:30px 19px}.brand{font-size:14px}.mobile-nav-panel{right:-4px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}}