/* ===== Style A — "Archive" =====
   Warm paper tone, deep ink text, dark wax-seal red accent.
   Serif headlines, quiet and document-like. */

:root{
  --paper:#F6F3EC;
  --ink:#1E1C19;
  --ink-soft:#5B564C;
  --line:#DCD5C4;
  --seal:#8C3B2E;
  --card-gray:#D8D4CA;
  --card-gray-line:#C4BFB2;
  --radius:2px;
}
*{box-sizing:border-box;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:Georgia, 'Times New Roman', serif;
  -webkit-font-smoothing:antialiased;
}
.sans{ font-family:-apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif; }

header{
  display:flex; align-items:center; justify-content:space-between; gap:24px;
  padding:20px clamp(20px,5vw,64px);
  border-bottom:1px solid var(--line);
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{ width:38px; height:38px; border-radius:50%; background:var(--card-gray); border:1px solid var(--card-gray-line); flex-shrink:0; }
.brand-name{ font-size:17px; letter-spacing:0.02em; }
.brand-name small{ display:block; font-family:-apple-system, sans-serif; font-size:11px; letter-spacing:0.14em; text-transform:uppercase; color:var(--ink-soft); margin-top:2px; }

.search{ display:flex; align-items:center; border:1px solid var(--line); border-radius:var(--radius); background:#fff; padding:8px 12px; min-width:220px; max-width:320px; flex:1; }
.search input{ border:0; outline:0; background:transparent; font-family:-apple-system, sans-serif; font-size:14px; width:100%; color:var(--ink); }
.search svg{ flex-shrink:0; opacity:0.5; margin-right:8px; }

.hero{ padding:64px clamp(20px,5vw,64px) 40px; max-width:820px; }
.hero h1{ font-size:clamp(28px,4vw,42px); line-height:1.25; margin:0 0 14px; font-weight:400; }
.hero p{ font-family:-apple-system, sans-serif; color:var(--ink-soft); font-size:15px; line-height:1.6; max-width:520px; margin:0; }

main{ padding:0 clamp(20px,5vw,64px) 80px; }
.grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(230px,1fr)); gap:28px 24px; }
.empty-note{ font-family:-apple-system, sans-serif; color:var(--ink-soft); font-size:14px; padding:40px 0; }

.card{ border:1px solid var(--line); background:#fff; border-radius:var(--radius); overflow:hidden; display:flex; flex-direction:column; }
.cover{ aspect-ratio:2/3; background:linear-gradient(160deg,#3B3128,#171310); position:relative; display:flex; align-items:center; justify-content:center; overflow:hidden; }
.cover img{ width:100%; height:100%; object-fit:cover; display:block; }
.cover span{ font-family:-apple-system, sans-serif; font-size:11px; letter-spacing:0.12em; text-transform:uppercase; color:#EDE3D3; background:rgba(0,0,0,0.35); padding:4px 8px; border-radius:var(--radius); }

.card-body{ padding:16px 16px 18px; display:flex; flex-direction:column; gap:8px; flex:1; }
.eyebrow{ font-family:-apple-system, sans-serif; font-size:10px; letter-spacing:0.12em; text-transform:uppercase; color:var(--ink-soft); }
.card-title{ font-size:17px; line-height:1.3; margin:0; }
.tagline{ font-family:-apple-system, sans-serif; font-size:13px; font-style:italic; color:var(--seal); line-height:1.4; margin:0; }
.desc{ font-family:-apple-system, sans-serif; font-size:13px; line-height:1.55; color:var(--ink-soft); margin:2px 0 0; display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden; }
.desc.expanded{ display:block; -webkit-line-clamp:unset; }

.more-row{ margin-top:auto; padding-top:10px; display:flex; align-items:center; justify-content:space-between; gap:10px; }
.readmore{ font-family:-apple-system, sans-serif; font-size:12.5px; color:var(--seal); background:none; border:0; padding:0; cursor:pointer; text-decoration:underline; text-underline-offset:2px; }
.goto{ font-family:-apple-system, sans-serif; font-size:12.5px; color:var(--ink); text-decoration:none; border-bottom:1px solid var(--ink); display:none; white-space:nowrap; }
.desc.expanded ~ .more-row .goto{ display:inline; }
.desc.expanded ~ .more-row .readmore{ display:none; }

footer{ padding:24px clamp(20px,5vw,64px) 40px; font-family:-apple-system, sans-serif; font-size:12px; color:var(--ink-soft); border-top:1px solid var(--line); }
/* ===== Book detail page ===== */
.book-back{
  display:block; margin:24px clamp(20px,5vw,64px) 0;
  font-family:-apple-system, sans-serif; font-size:13px;
  color:var(--ink-soft); text-decoration:none;
}
.book-back:hover{ color:var(--seal); }

.book-hero{
  display:grid;
  grid-template-columns:220px 1fr;
  gap:40px;
  padding:32px clamp(20px,5vw,64px) 20px;
  max-width:980px;
}
@media (max-width:640px){
  .book-hero{ grid-template-columns:1fr; }
}

.book-cover{
  aspect-ratio:2/3;
  background:linear-gradient(160deg,#3B3128,#171310);
  border-radius:var(--radius);
  overflow:hidden;
  display:flex; align-items:center; justify-content:center;
}
.book-cover img{ width:100%; height:100%; object-fit:cover; display:block; }
.book-cover span{
  font-family:-apple-system, sans-serif; font-size:11px;
  letter-spacing:0.12em; text-transform:uppercase; color:#EDE3D3;
}

.book-info .eyebrow{ margin-bottom:6px; }
.book-info h1{ font-size:clamp(24px,3.4vw,34px); line-height:1.25; margin:0 0 10px; font-weight:400; }
.book-info .tagline{ font-size:15px; margin:0 0 16px; }
.book-info .desc-full{
  font-family:-apple-system, sans-serif; font-size:14.5px; line-height:1.65;
  color:var(--ink); margin:0 0 20px; max-width:560px;
}

.buy-row{ display:flex; flex-wrap:wrap; gap:10px; }
.btn-buy{
  font-family:-apple-system, sans-serif; font-size:13px;
  color:#fff; background:var(--seal);
  padding:10px 18px; border-radius:var(--radius);
  text-decoration:none; display:inline-block;
  border:1px solid var(--seal);
}
.btn-buy:hover{ background:#6f2d22; }

.book-section{
  padding:20px clamp(20px,5vw,64px) 10px;
  max-width:820px;
}
.book-section h2{
  font-size:15px; letter-spacing:0.04em; text-transform:uppercase;
  font-family:-apple-system, sans-serif; color:var(--ink-soft);
  font-weight:600; margin:0 0 14px;
  border-bottom:1px solid var(--line); padding-bottom:8px;
}
.history-note{
  font-family:-apple-system, sans-serif; font-size:14px; line-height:1.65;
  color:var(--ink); background:#fff; border:1px solid var(--line);
  border-radius:var(--radius); padding:16px 18px;
}

.video-list{ display:flex; flex-direction:column; gap:10px; }
.video-item{
  display:flex; justify-content:space-between; align-items:center;
  gap:16px; background:#fff; border:1px solid var(--line);
  border-radius:var(--radius); padding:12px 16px;
  font-family:-apple-system, sans-serif;
}
.video-item .caption{ font-size:14px; color:var(--ink); }
.video-item .date{ font-size:12px; color:var(--ink-soft); white-space:nowrap; }
.video-item a{ color:var(--seal); text-decoration:none; font-size:13px; border-bottom:1px solid var(--seal); }

.not-found{
  padding:80px clamp(20px,5vw,64px);
  font-family:-apple-system, sans-serif; color:var(--ink-soft);
}