:root{
  --deep:#3d160f; --crimson:#531f16; --brick:#823c2e;
  --parch:#f4e3dc; --parch-dim:rgba(244,227,220,.72); --rule:rgba(240,200,122,.28);
  --gold:#f0c87a; --gold-deep:#d9a74e;
  --display:'Playfair Display',Georgia,'Times New Roman',serif;
  --text:'Source Serif 4',Georgia,'Times New Roman',serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--deep) linear-gradient(180deg,var(--brick) 0,var(--crimson) 340px,var(--deep) 900px) no-repeat;
  color:var(--parch);font-family:var(--text);font-size:19px;line-height:1.6;min-height:100vh}
a{color:var(--gold)}
a:focus-visible,button:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
img{max-width:100%;display:block}

.masthead{max-width:1180px;margin:0 auto;padding:1.4rem 1.5rem;display:flex;justify-content:space-between;align-items:baseline;gap:1rem;flex-wrap:wrap}
.brand{font-family:var(--display);font-weight:800;font-size:1.35rem;color:var(--parch);text-decoration:none}
.brand span{color:var(--gold);font-style:italic;font-weight:500}
.home-link{font-size:.95rem;color:var(--parch-dim)}
.home-link:hover{color:var(--gold)}

main{max-width:1180px;margin:0 auto;padding:0 1.5rem 4rem}
.hero{max-width:42rem;padding:2.5rem 0 1.5rem}
.hero h1{font-family:var(--display);font-weight:800;font-size:clamp(2.2rem,5.5vw,3.6rem);line-height:1.08;margin:0 0 1rem}
.hero p{margin:0;color:var(--parch-dim);font-size:1.1rem;max-width:36rem}

.filters{display:flex;flex-wrap:wrap;gap:.6rem;padding:1rem 0 2rem;border-bottom:1px solid var(--rule);margin-bottom:2.5rem}
.chip{font:inherit;font-size:1rem;color:var(--gold);background:transparent;border:1px solid var(--gold);border-radius:999px;padding:.35rem 1.1rem;cursor:pointer}
.chip:hover{background:rgba(240,200,122,.12)}
.chip[aria-pressed="true"]{background:var(--gold);color:var(--deep);font-weight:600}

/* the shelf: covers stand on a gold ledge */
.shelf{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:2.8rem 2rem}
.book[hidden]{display:none}
.book a{display:flex;flex-direction:column;text-decoration:none;color:var(--parch);height:100%}
.book .cover{aspect-ratio:2/3;width:100%;object-fit:cover;border-radius:2px 5px 5px 2px;
  box-shadow:0 14px 18px -10px rgba(0,0,0,.75),inset 4px 0 6px -4px rgba(0,0,0,.4);
  transform-origin:bottom center;transition:transform .25s ease}
.book a::after{content:"";display:block;height:6px;margin:-1px -.5rem 0;border-radius:0 0 3px 3px;
  background:linear-gradient(180deg,var(--gold-deep),#7a5520);box-shadow:0 6px 10px rgba(0,0,0,.45);order:1}
.book .book-title{order:2;font-family:var(--display);font-weight:600;font-size:1.02rem;line-height:1.3;margin-top:.9rem}
.book a:hover .cover,.book a:focus-visible .cover{transform:translateY(-6px)}
.book a:hover .book-title{color:var(--gold)}

.cover-blank{aspect-ratio:2/3;background:linear-gradient(160deg,var(--brick),var(--crimson));border:1px solid var(--rule);
  display:flex;align-items:center;justify-content:center;padding:1rem;text-align:center}
.cover-blank span{font-family:var(--display);font-weight:800;font-size:1.2rem;color:var(--gold);line-height:1.2}

.detail{padding-top:1rem}
.back{display:inline-block;margin:1rem 0 2rem;font-size:1rem}
.back::before{content:"\2039\00a0"}
.detail-grid{display:grid;grid-template-columns:minmax(220px,340px) 1fr;gap:3.5rem;align-items:start}
.detail-cover{position:sticky;top:1.5rem}
.cover-lg{width:100%;border-radius:2px 6px 6px 2px;box-shadow:0 24px 30px -14px rgba(0,0,0,.8)}
.detail-text{max-width:40rem}
.detail h1{font-family:var(--display);font-weight:800;font-size:clamp(2rem,4.5vw,3rem);line-height:1.1;margin:0 0 .8rem}
.subtitle{font-family:var(--display);font-style:italic;font-weight:500;font-size:1.3rem;line-height:1.4;color:var(--gold);margin:0 0 1rem}
.byline{color:var(--parch-dim);margin:0 0 2rem}
.buy{display:flex;flex-wrap:wrap;gap:.8rem;margin-bottom:2.5rem}
.btn{font-size:1.05rem;padding:.7rem 1.4rem;border:1px solid var(--gold);border-radius:4px;text-decoration:none;color:var(--gold);font-weight:600}
.btn:hover{background:rgba(240,200,122,.12)}
.btn-primary{background:var(--gold);color:var(--deep)}
.btn-primary:hover{background:#f6d596}
.soon{color:var(--parch-dim);font-style:italic;margin:0}
.blurb p{margin:0 0 1.1rem}
.facts{display:grid;grid-template-columns:max-content 1fr;gap:.4rem 1.5rem;margin:2rem 0 0;padding-top:1.5rem;border-top:1px solid var(--rule);font-size:1rem}
.facts dt{color:var(--parch-dim)}
.facts dd{margin:0}

.foot{max-width:1180px;margin:0 auto;padding:2rem 1.5rem 3rem;border-top:1px solid var(--rule);color:var(--parch-dim);font-size:.95rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem}
.foot p{margin:0}

@media (max-width:720px){
  body{font-size:18px}
  .shelf{grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:2.2rem 1.2rem}
  .detail-grid{grid-template-columns:1fr;gap:2rem}
  .detail-cover{position:static;max-width:260px}
}
@media (prefers-reduced-motion:reduce){.book .cover{transition:none}}