:root{
  --background:#fff;
  --ink:#090909;
  --gold:#b88a3b;
  --body:#2f343a;
  --soft:#70757c;
  --line:#ececec;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--background);color:var(--body);font-family:Arial,Helvetica,sans-serif}
a{color:inherit;text-decoration:none}
.site-header{display:flex;align-items:center;justify-content:space-between;padding:26px clamp(22px,5vw,76px);border-bottom:1px solid var(--line)}
.brand{font-family:Georgia,"Times New Roman",serif;font-size:.95rem;letter-spacing:.2em;color:var(--ink)}
.library-return{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--soft);transition:color .2s ease}
.library-return:hover,.library-return:focus-visible{color:var(--gold)}
main{width:min(1220px,calc(100% - 44px));margin:0 auto}
.book-hero{display:grid;grid-template-columns:minmax(260px,38%) minmax(0,1fr);gap:clamp(44px,8vw,112px);align-items:center;padding:clamp(64px,9vw,132px) 0}
.cover-frame{margin:0;display:flex;justify-content:center}
.cover-frame img{display:block;width:min(100%,520px);height:auto;border:0;box-shadow:none}
.book-kicker,.section-kicker{margin:0 0 22px;font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);font-weight:600}
.language-switch{display:flex;align-items:center;gap:16px;margin:0 0 42px}
.language-switch a{padding:8px 0;border-bottom:1px solid transparent;font-size:.72rem;letter-spacing:.13em;text-transform:uppercase;color:var(--soft)}
.language-switch a[aria-current="page"]{color:var(--ink);border-color:var(--gold)}
.book-copy h1{margin:0;color:var(--ink);font-family:Georgia,"Times New Roman",serif;font-size:clamp(2.35rem,5vw,5.75rem);font-weight:400;line-height:.94;letter-spacing:-.035em}
.book-subtitle{margin:22px 0 0;font-family:Georgia,"Times New Roman",serif;font-size:clamp(1.05rem,1.65vw,1.45rem);line-height:1.35;color:var(--ink)}
.book-author{margin:28px 0 0;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold)}
.synopsis{margin:38px 0 0;max-width:680px;font-family:Georgia,"Times New Roman",serif;font-size:clamp(1.05rem,1.25vw,1.22rem);line-height:1.75;color:var(--body)}
.purchase{padding:clamp(54px,7vw,86px) 0;border-top:1px solid var(--line)}
.purchase h2,.editorial-section h2{margin:0;color:var(--ink);font-family:Georgia,"Times New Roman",serif;font-size:clamp(1.8rem,3vw,3rem);font-weight:400;letter-spacing:-.02em}
.store-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:34px}
.store-button{display:flex;align-items:center;justify-content:space-between;min-height:58px;padding:16px 18px;border:1px solid var(--line);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink);transition:border-color .2s ease,color .2s ease,transform .2s ease}
.store-button:hover,.store-button:focus-visible{border-color:var(--gold);color:var(--gold);transform:translateY(-2px)}
.availability-note{min-height:1.4em;margin:18px 0 0;color:var(--soft);font-size:.82rem}
.editorial-sections{border-top:1px solid var(--line);margin-bottom:clamp(96px,13vw,170px)}
.editorial-section{padding:clamp(64px,9vw,112px) 0;border-bottom:1px solid var(--line)}
.editorial-section p{max-width:62ch;margin:26px 0 0;font-family:Georgia,"Times New Roman",serif;font-size:clamp(1rem,1.2vw,1.16rem);line-height:1.75;color:var(--soft)}
.preview-button{display:inline-flex;align-items:center;min-height:50px;margin-top:34px;padding:14px 22px;border:1px solid var(--ink);background:transparent;font-family:inherit;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink);cursor:default;transition:border-color .2s ease,color .2s ease}
.preview-button:hover,.preview-button:focus-visible{border-color:var(--gold);color:var(--gold)}
.site-footer{display:flex;justify-content:space-between;gap:24px;padding:32px clamp(22px,5vw,76px);border-top:1px solid var(--line);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--soft)}
@media(max-width:980px){
  .book-hero{grid-template-columns:1fr;padding-top:48px}
  .cover-frame img{width:min(82vw,460px)}
  .book-copy{padding-bottom:20px}
  .store-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  main{width:min(100% - 32px,1220px)}
  .site-header{align-items:flex-start;gap:24px}
  .store-grid{grid-template-columns:1fr}
  .editorial-section{padding:54px 0}
  .site-footer{flex-direction:column}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .store-button,.preview-button{transition:none}
  .store-button:hover{transform:none}
}