:root{
  --ink:#0a1322;--ink-2:#112038;--paper:#f6f3ec;--paper-2:#ebe6dc;
  --text:#172033;--muted:#5e6879;--line:#d7d0c4;--blue:#315b8d;
  --blue-2:#6e91bc;--gold:#a37b27;--white:#fff;--danger:#8b2e2e;
  --sans:-apple-system,BlinkMacSystemFont,"Avenir Next",Avenir,"Segoe UI",Helvetica,Arial,sans-serif;
  --serif:Georgia,"Times New Roman",Times,serif;
  --shadow:0 18px 52px rgba(10,19,34,.10);
  --radius:18px;--max:1180px;--header:74px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--paper)}
body{margin:0;color:var(--text);background:var(--paper);font-family:var(--sans);font-size:17px;line-height:1.68;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{display:block;max-width:100%;height:auto}
a{color:var(--blue);text-decoration-thickness:.08em;text-underline-offset:.18em}
a:hover{color:#1f426c}
.on-dark{color:#fff}.on-dark:hover{color:#fff}
button,summary{font:inherit}
.skip-link{position:fixed;left:1rem;top:-5rem;z-index:9999;padding:.75rem 1rem;background:var(--white);color:var(--ink);border:2px solid var(--blue);border-radius:10px}
.skip-link:focus{top:1rem}
:focus-visible{outline:3px solid #0067c0;outline-offset:3px}
.site-header{position:sticky;top:0;z-index:1000;height:var(--header);background:rgba(10,19,34,.96);border-bottom:1px solid rgba(255,255,255,.1);backdrop-filter:blur(12px)}
.header-inner{width:min(var(--max),calc(100% - 2rem));height:100%;margin:auto;display:flex;align-items:center;gap:1.1rem}
.brand{display:flex;align-items:center;gap:.72rem;color:var(--white);text-decoration:none;flex:0 0 auto}
.brand img{width:40px;height:40px;border-radius:50%;object-fit:cover;border:1px solid rgba(255,255,255,.24)}
.brand-text{font-size:.84rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;line-height:1.15}
.brand-text span{display:block;color:#a9bed8;font-size:.64rem;font-weight:600;letter-spacing:.18em;margin-top:.2rem}
.desktop-nav{display:flex;align-items:center;justify-content:center;gap:.08rem;margin-left:auto}
.desktop-nav a{color:#e8edf4;text-decoration:none;padding:.64rem .72rem;border-radius:9px;font-size:.76rem;font-weight:650;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap}
.desktop-nav a:hover,.desktop-nav a[aria-current="page"]{background:rgba(255,255,255,.09);color:#fff}
.language-switch{display:flex;align-items:center;gap:.28rem;margin-left:.35rem;padding:.22rem;border:1px solid rgba(255,255,255,.18);border-radius:999px;flex:0 0 auto}
.language-switch a{min-width:36px;text-align:center;padding:.36rem .48rem;border-radius:999px;color:#dbe5f1;text-decoration:none;font-size:.72rem;font-weight:800;letter-spacing:.06em}
.language-switch a[aria-current="true"]{background:#eef3f8;color:var(--ink)}
.mobile-menu{display:none;margin-left:auto;position:relative}
.mobile-menu summary{list-style:none;cursor:pointer;color:#fff;border:1px solid rgba(255,255,255,.22);border-radius:9px;padding:.54rem .68rem;font-size:.74rem;font-weight:750;letter-spacing:.08em;text-transform:uppercase}
.mobile-menu summary::-webkit-details-marker{display:none}
.mobile-menu[open] .mobile-panel{display:grid}
.mobile-panel{display:none;position:absolute;right:0;top:calc(100% + .65rem);width:min(310px,calc(100vw - 2rem));padding:.7rem;background:var(--ink);border:1px solid rgba(255,255,255,.16);border-radius:14px;box-shadow:0 20px 55px rgba(0,0,0,.35)}
.mobile-panel a{color:#eef3f8;text-decoration:none;padding:.72rem .8rem;border-radius:8px;font-size:.86rem;font-weight:650}
.mobile-panel a:hover,.mobile-panel a[aria-current="page"]{background:rgba(255,255,255,.1)}

main{min-height:65vh}
.hero{position:relative;isolation:isolate;min-height:690px;display:grid;place-items:center;color:#fff;background:var(--ink);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;z-index:-2;background:url('hero.v44.jpg') center/cover no-repeat;filter:saturate(.72) brightness(.52)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(6,15,29,.94) 0%,rgba(6,15,29,.76) 48%,rgba(6,15,29,.45) 100%),linear-gradient(0deg,rgba(6,15,29,.45),transparent 52%)}
.hero-inner{width:min(var(--max),calc(100% - 2.4rem));padding:5rem 0 4.5rem}
.hero-mark{width:86px;height:86px;object-fit:cover;border-radius:50%;border:1px solid rgba(255,255,255,.3);margin-bottom:1.5rem;box-shadow:0 18px 48px rgba(0,0,0,.28)}
.eyebrow{margin:0 0 .85rem;font-size:.72rem;font-weight:800;letter-spacing:.22em;text-transform:uppercase;color:#a9c1dd}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.12;color:var(--ink);text-wrap:balance;overflow-wrap:anywhere;hyphens:auto}
.hero h1{max-width:920px;margin:0;font-size:clamp(2.65rem,7vw,5.55rem);color:#fff;letter-spacing:-.035em}
.hero .lead{max-width:780px;margin:1.35rem 0 0;color:#dce6f1;font-size:clamp(1.05rem,2vw,1.32rem);line-height:1.6}
.actions{display:flex;gap:.72rem;flex-wrap:wrap;margin-top:2rem}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:.75rem 1.1rem;border:1px solid transparent;border-radius:10px;text-decoration:none;font-size:.82rem;font-weight:800;letter-spacing:.035em}
.button.primary{background:#f1f4f8;color:var(--ink)}
.button.primary:hover{background:#fff;color:var(--ink)}
.button.secondary{border-color:rgba(255,255,255,.38);color:#fff;background:rgba(255,255,255,.04)}
.button.secondary:hover{background:rgba(255,255,255,.1);color:#fff}
.button.blue{background:var(--blue);color:#fff}
.button.blue:hover{background:#244b7b;color:#fff}
.button.ghost{border-color:var(--line);color:var(--blue);background:transparent}
.button.ghost:hover{border-color:var(--blue);background:#f0f3f7}

.page-hero{background:var(--ink);color:#fff;padding:5.2rem 0 4.3rem;border-bottom:1px solid rgba(255,255,255,.08)}
.page-hero .wrap{width:min(940px,calc(100% - 2.4rem));margin:auto}
.breadcrumbs{font-size:.78rem;color:#aebdce;margin-bottom:1.35rem}
.breadcrumbs a{color:#c7d5e5}
.page-hero h1{margin:0;color:#fff;font-size:clamp(2.6rem,6vw,4.7rem);letter-spacing:-.025em}
.page-hero .lead{max-width:800px;margin:1.15rem 0 0;color:#d1dbe7;font-size:1.14rem}

.section{padding:5.3rem 0}
.section.alt{background:var(--paper-2)}
.section.dark{background:var(--ink);color:#e8eef6}
.wrap{width:min(var(--max),calc(100% - 2.4rem));margin:auto}
.wrap.narrow{width:min(820px,calc(100% - 2.4rem))}
.section-head{max-width:820px;margin-bottom:2.6rem}
.section-head .kicker{margin:0 0 .65rem;color:var(--blue);font-size:.72rem;font-weight:850;letter-spacing:.18em;text-transform:uppercase}
.section-head h2{margin:0;font-size:clamp(2rem,4vw,3.25rem);letter-spacing:-.025em}
.section-head p{margin:1rem 0 0;color:var(--muted);font-size:1.05rem}
.dark .section-head h2,.dark h2,.dark h3{color:#fff}
.dark .section-head p,.dark p{color:#bfcddd}
.dark .card h2,.dark .card h3{color:var(--ink)}
.dark .card p{color:var(--muted)}
.prose{max-width:790px}
.prose h2{font-size:2.15rem;margin:2.8rem 0 1rem}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:1.35rem;margin:2rem 0 .65rem}
.prose p{margin:0 0 1.15rem;color:#30394a}
.prose ul{padding-left:1.3rem}
.prose li{margin:.45rem 0}
.notice{margin:2rem 0;padding:1.25rem 1.35rem;border-left:4px solid var(--gold);background:#fff9e8;border-radius:0 12px 12px 0}
.notice p{margin:0;color:#3c372a}

.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.16);margin-top:3rem;max-width:780px}
.stat{padding:1.2rem 1.3rem;background:rgba(7,16,30,.74)}
.stat strong{display:block;font-family:var(--serif);font-size:1.55rem;color:#fff}
.stat span{display:block;color:#aebdd0;font-size:.78rem;margin-top:.2rem}
.grid{display:grid;gap:1.25rem}
.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.55rem;box-shadow:0 1px 0 rgba(10,19,34,.02)}
.card h3{font-size:1.35rem;margin:0 0 .7rem}
.card p{margin:0;color:var(--muted)}
.card .meta{margin-bottom:.7rem;color:var(--blue);font-size:.72rem;font-weight:850;letter-spacing:.11em;text-transform:uppercase}
.card-link{display:block;color:inherit;text-decoration:none;transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease}
.card-link:hover{transform:translateY(-2px);border-color:#aabed5;box-shadow:var(--shadow);color:inherit}
.number{font-family:var(--serif);font-size:2.2rem;color:#a6b7cc;line-height:1;margin-bottom:1rem}
.pill{display:inline-flex;align-items:center;gap:.35rem;padding:.35rem .62rem;border-radius:999px;background:#e8eef5;color:#244b78;font-size:.72rem;font-weight:850;letter-spacing:.06em;text-transform:uppercase}
.pill.published{background:#e5f0e8;color:#2c653d}

.architecture{margin:0;background:#091321;border:1px solid #24354d;border-radius:16px;padding:.75rem;box-shadow:var(--shadow)}
.architecture img{width:100%;border-radius:10px}
.architecture figcaption{padding:.75rem .3rem .2rem;color:#b8c5d5;font-size:.82rem}

.book-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.35rem}
.book-card{display:grid;grid-template-rows:auto 1fr;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.book-card figure{margin:0;background:#e9e5dc;padding:1.5rem;min-height:350px;display:grid;place-items:center}
.book-card figure img{max-height:315px;width:auto;box-shadow:0 16px 35px rgba(10,19,34,.18)}
.book-body{display:grid;grid-template-rows:auto auto auto auto 1fr;padding:1.5rem;align-content:start}
.book-body h3{font-size:1.45rem;margin:.75rem 0 .7rem}
.book-body p{color:var(--muted);margin:0 0 .9rem}
.book-details{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.45rem;margin:1rem 0 1.25rem;padding-top:1rem;border-top:1px solid var(--line);font-size:.78rem;color:#4e596b}
.book-actions{display:flex;gap:.55rem;flex-wrap:wrap;align-self:end;margin-top:1rem}
.book-feature{display:grid;grid-template-columns:minmax(240px,360px) minmax(0,1fr);gap:3.2rem;align-items:start}
.book-feature .cover{background:#e8e4dc;border-radius:18px;padding:2rem;box-shadow:var(--shadow)}
.book-feature .cover img{max-height:560px;width:auto;margin:auto;box-shadow:0 18px 40px rgba(10,19,34,.2)}
.book-feature h2{font-size:clamp(2rem,4vw,3.1rem);margin:0 0 1rem}
.detail-list{display:grid;grid-template-columns:max-content 1fr;gap:.45rem 1rem;margin:1.4rem 0 1.8rem}
.detail-list dt{font-weight:800;color:#3b4658}
.detail-list dd{margin:0;color:#5d6879}

.record-list{display:grid;gap:.72rem}
.record{display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:1rem;align-items:start;padding:1rem 1.05rem;background:#fff;border:1px solid var(--line);border-radius:12px}
.record .idx{font-family:var(--serif);font-size:1.35rem;color:#5e718a}
.record h3{font-family:var(--sans);font-size:1rem;font-weight:800;line-height:1.35;margin:0 0 .25rem}
.record p{font-size:.82rem;margin:0;color:var(--muted)}
.record .doi{align-self:center;font-size:.76rem;font-weight:800;text-decoration:none;padding:.45rem .62rem;border:1px solid #b8c6d8;border-radius:8px;white-space:nowrap}
.profile{display:grid;grid-template-columns:88px minmax(0,1fr);gap:1.2rem;align-items:start}
.profile .monogram{width:78px;height:78px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:#fff;font-family:var(--serif);font-size:1.6rem}
.profile h2,.profile h3{margin:0 0 .55rem;font-size:1.45rem}
.profile p{margin:0 0 .75rem;color:var(--muted)}
.link-row{display:flex;gap:.6rem;flex-wrap:wrap}
.link-row a{font-size:.78rem;font-weight:800;text-decoration:none;border-bottom:1px solid #9eb0c7}

.cta{padding:3rem;border-radius:20px;background:var(--ink);color:#fff;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2rem;align-items:center}
.cta h2{color:#fff;margin:0;font-size:2rem}
.cta p{color:#bdcbdc;margin:.65rem 0 0;max-width:720px}

.site-footer{background:#07101d;color:#c5d0de;padding:3.7rem 0 2rem;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.3rem}
.footer-brand{max-width:480px}
.footer-brand strong{display:block;color:#fff;font-family:var(--serif);font-size:1.45rem;margin-bottom:.6rem}
.footer-brand p{margin:0;color:#aebccc;font-size:.9rem}
.footer-col h2{font-family:var(--sans);font-size:.72rem;color:#91a9c4;letter-spacing:.14em;text-transform:uppercase;margin:0 0 .85rem}
.footer-col a{display:block;color:#d5deea;text-decoration:none;margin:.42rem 0;font-size:.88rem}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{display:flex;justify-content:space-between;gap:1rem;margin-top:2.7rem;padding-top:1.25rem;border-top:1px solid rgba(255,255,255,.1);color:#8fa0b4;font-size:.75rem}

@media(max-width:1040px){
  .desktop-nav{display:none}.mobile-menu{display:block}.language-switch{margin-left:.15rem}
  .grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}
  .book-grid{grid-template-columns:1fr 1fr}.book-card:last-child{grid-column:1/-1;display:grid;grid-template-columns:.85fr 1.15fr;grid-template-rows:1fr}.book-card:last-child figure{min-height:100%}
}
@media(max-width:760px){
  :root{--header:68px}.header-inner{width:min(100% - 1rem,var(--max));gap:.55rem}.brand-text{font-size:.72rem}.brand-text span{display:none}.brand img{width:36px;height:36px}
  .language-switch a{min-width:32px;padding:.32rem .35rem}.mobile-menu summary{padding:.48rem .58rem}
  .hero{min-height:620px}.hero-inner{padding:4.2rem 0}.hero-mark{width:72px;height:72px}.hero h1{font-size:clamp(2.35rem,12vw,3.7rem)}
  .page-hero{padding:4.1rem 0 3.4rem}.section{padding:4.1rem 0}.wrap,.wrap.narrow,.page-hero .wrap,.hero-inner{width:min(100% - 1.35rem,var(--max))}
  .grid.two,.grid.three,.grid.four,.book-grid,.footer-grid,.stats{grid-template-columns:1fr}.book-card:last-child{grid-column:auto;display:grid;grid-template-columns:1fr;grid-template-rows:auto 1fr}.book-card figure{min-height:300px}.book-card:last-child figure{min-height:300px}
  .book-feature{grid-template-columns:1fr;gap:2rem}.book-feature .cover{padding:1.25rem}.record{grid-template-columns:38px minmax(0,1fr)}.record .doi{grid-column:2;justify-self:start}
  .cta{grid-template-columns:1fr;padding:2rem}.footer-bottom{flex-direction:column}.profile{grid-template-columns:64px minmax(0,1fr)}.profile .monogram{width:58px;height:58px;font-size:1.2rem}
  .detail-list{grid-template-columns:1fr}.detail-list dt{margin-top:.5rem}.book-details{grid-template-columns:1fr}
}
@media(max-width:420px){
  .brand-text{display:none}.language-switch{margin-left:auto}.mobile-menu{margin-left:0}.hero h1{font-size:2.5rem}.actions{display:grid;grid-template-columns:1fr;width:100%}.button{width:100%}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
@media print{.site-header,.site-footer,.actions,.mobile-menu,.language-switch{display:none!important}.page-hero,.hero{min-height:auto;background:#fff;color:#000;padding:1rem 0}.page-hero h1,.hero h1{color:#000}.hero::before,.hero::after{display:none}.section{padding:1.5rem 0}.card,.book-card,.record{break-inside:avoid;box-shadow:none}}

/* v44.1: non-clickable retailer availability notice */
.availability-note{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:.75rem 1.05rem;border:1px solid #c7d2df;border-radius:10px;background:#f3f6f9;color:#33465c;font-size:.82rem;font-weight:800;letter-spacing:.025em}