/* ===========================================================
   Books · William Zea — sistema visual editorial
   Fraunces (display serif) + Inter (texto). Palema crema/tinta
   con acento verde botella. Sin plantillas "librería" clásicas.
=========================================================== */

:root{
  --ink: #171512;
  --ink-soft: #4a4640;
  --paper: #F6F1E7;
  --paper-2: #EFE7D8;
  --line: #DCD2BC;
  --accent: #1F3D2B;
  --accent-2: #A9762F;
  --white: #FFFEFB;
  --radius: 2px;
  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --maxw: 1180px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;}

h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:600;
  letter-spacing:-0.01em;
  margin:0 0 .4em;
  color:var(--ink);
}
.eyebrow{
  font-family:var(--sans);
  font-size:.72rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent-2);
  font-weight:600;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(246,241,231,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:82px;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand svg{width:34px;height:34px;flex-shrink:0;}
.brand .brand-text{display:flex;flex-direction:column;line-height:1.05;}
.brand .brand-text strong{font-family:var(--serif);font-size:1.15rem;letter-spacing:.01em;}
.brand .brand-text span{font-size:.62rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-soft);margin-top:2px;}

.main-nav{display:flex;align-items:center;gap:36px;}
.main-nav a{
  font-size:.86rem; letter-spacing:.02em; color:var(--ink-soft);
  position:relative; padding:4px 0;
  transition:color .2s ease;
}
.main-nav a:hover, .main-nav a.active{color:var(--ink);}
.main-nav a.active::after{
  content:""; position:absolute; left:0; right:0; bottom:-4px; height:1px; background:var(--accent);
}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--sans); font-size:.82rem; font-weight:600;
  letter-spacing:.03em; padding:13px 24px; border-radius:var(--radius);
  border:1px solid var(--ink); cursor:pointer; transition:all .2s ease;
}
.btn-primary{background:var(--ink); color:var(--white);}
.btn-primary:hover{background:var(--accent); border-color:var(--accent);}
.btn-outline{background:transparent; color:var(--ink); border-color:var(--ink);}
.btn-outline:hover{background:var(--ink); color:var(--white);}
.btn-sm{padding:9px 16px;font-size:.75rem;}

/* ---------- Hero ---------- */
.hero{padding:88px 0 72px; position:relative; overflow:hidden;}
.hero .wrap{display:grid; grid-template-columns:1.1fr .9fr; gap:64px; align-items:center;}
.hero h1{font-size:clamp(2.2rem, 4vw, 3.4rem); line-height:1.08;}
.hero p.lede{font-size:1.08rem; color:var(--ink-soft); max-width:46ch; margin:18px 0 32px;}
.hero-actions{display:flex; gap:16px; align-items:center;}
.hero-visual{position:relative;}
.hero-stack{position:relative; height:420px;}
.hero-book{
  position:absolute; width:230px; aspect-ratio:3/4.4;
  background:var(--ink); border-radius:3px;
  box-shadow:0 30px 60px -20px rgba(23,21,18,.4);
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
}
.hero-book img{width:100%;height:100%;object-fit:cover;}
.hero-book.b1{left:0; top:10px; transform:rotate(-6deg); z-index:2;}
.hero-book.b2{left:150px; top:60px; transform:rotate(4deg); z-index:1; background:var(--accent);}
.hero-mark{position:absolute; right:-10px; top:-30px; opacity:.08; width:220px;}

/* ---------- Section headings ---------- */
.section{padding:72px 0;}
.section-head{display:flex; align-items:flex-end; justify-content:space-between; margin-bottom:36px; gap:24px;}
.section-head h2{font-size:1.9rem;}
.section-head .view-all{font-size:.82rem; font-weight:600; border-bottom:1px solid var(--ink); padding-bottom:2px;}

/* ---------- Genre pills ---------- */
.genre-filter{display:flex; flex-wrap:wrap; gap:10px; margin-bottom:40px;}
.genre-filter a{
  font-size:.78rem; padding:9px 18px; border:1px solid var(--line);
  border-radius:30px; color:var(--ink-soft); background:var(--white);
  transition:all .2s ease;
}
.genre-filter a:hover, .genre-filter a.active{
  background:var(--ink); color:var(--white); border-color:var(--ink);
}

/* ---------- Book grid & card ---------- */
.book-grid{display:grid; grid-template-columns:repeat(4, 1fr); gap:36px 28px;}
.book-card{display:block;}
.book-cover{
  aspect-ratio:3/4.5; border-radius:3px; overflow:hidden;
  background:var(--paper-2); box-shadow:0 18px 34px -18px rgba(23,21,18,.35);
  margin-bottom:16px; transition:transform .35s ease, box-shadow .35s ease;
}
.book-card:hover .book-cover{transform:translateY(-6px); box-shadow:0 28px 44px -18px rgba(23,21,18,.45);}
.book-cover img{width:100%;height:100%;object-fit:cover;}
.book-card h3{font-size:1.02rem; margin-bottom:2px;}
.book-card .book-sub{font-size:.82rem; color:var(--ink-soft); font-family:var(--sans);}
.book-card .book-genre{font-size:.68rem; letter-spacing:.1em; text-transform:uppercase; color:var(--accent-2); margin-top:8px; display:block;}

.featured-strip{
  display:grid; grid-template-columns:repeat(3,1fr); gap:28px;
}

/* ---------- Book detail ---------- */
.book-detail{padding:64px 0 96px;}
.book-detail .wrap{display:grid; grid-template-columns:.85fr 1.15fr; gap:72px; align-items:start;}
.book-detail-cover{
  aspect-ratio:3/4.5; border-radius:4px; overflow:hidden;
  box-shadow:0 40px 70px -30px rgba(23,21,18,.5);
  position:sticky; top:120px;
}
.book-detail-cover img{width:100%;height:100%;object-fit:cover;}
.book-meta-row{display:flex; gap:10px; flex-wrap:wrap; margin:18px 0 28px;}
.tag{font-size:.72rem; letter-spacing:.08em; text-transform:uppercase; padding:6px 12px; border:1px solid var(--line); border-radius:20px; color:var(--ink-soft);}
.book-detail h1{font-size:2.4rem;}
.book-detail .book-sub{font-size:1.1rem; color:var(--ink-soft); font-family:var(--serif); font-style:italic; margin-bottom:10px;}
.synopsis{font-size:1.02rem; color:var(--ink-soft); max-width:64ch;}
.synopsis p{margin:0 0 1.1em;}
.detail-actions{display:flex; gap:16px; margin-top:32px; align-items:center;}
.price{font-family:var(--serif); font-size:1.3rem;}

/* ---------- About / author ---------- */
.about-section .wrap{display:grid; grid-template-columns:.8fr 1.2fr; gap:64px; align-items:center;}
.author-photo{aspect-ratio:4/5; border-radius:4px; overflow:hidden; background:var(--paper-2); box-shadow:0 30px 60px -25px rgba(23,21,18,.4);}
.author-photo img{width:100%;height:100%;object-fit:cover;}
.about-section .lede{font-size:1.2rem; font-family:var(--serif); line-height:1.5; color:var(--ink);}
.signature{margin-top:28px; font-family:var(--serif); font-style:italic; font-size:1.4rem; color:var(--accent);}

/* ---------- Blog ---------- */
.post-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:36px;}
.post-card-cover{aspect-ratio:16/11; border-radius:3px; overflow:hidden; background:var(--paper-2); margin-bottom:16px;}
.post-card-cover img{width:100%;height:100%;object-fit:cover;}
.post-date{font-size:.72rem; letter-spacing:.08em; text-transform:uppercase; color:var(--accent-2); margin-bottom:8px; display:block;}
.post-card h3{font-size:1.15rem;}
.post-excerpt{color:var(--ink-soft); font-size:.92rem;}

.post-detail{padding:64px 0 96px;}
.post-detail .wrap{max-width:760px;}
.post-detail-cover{aspect-ratio:16/9; border-radius:4px; overflow:hidden; margin:32px 0; box-shadow:0 30px 60px -25px rgba(23,21,18,.35);}
.post-detail-cover img{width:100%;height:100%;object-fit:cover;}
.post-body{font-size:1.08rem; color:var(--ink); max-width:70ch;}
.post-body p{margin:0 0 1.3em;}
.post-body h2{font-size:1.5rem; margin-top:1.6em;}
.post-body blockquote{
  font-family:var(--serif); font-style:italic; font-size:1.3rem; color:var(--accent);
  border-left:3px solid var(--accent); padding-left:24px; margin:2em 0;
}

/* ---------- CTA / newsletter band ---------- */
.cta-band{background:var(--ink); color:var(--white); padding:72px 0; margin-top:40px;}
.cta-band h2{color:var(--white); font-size:2rem; max-width:16ch;}
.cta-band p{color:#D8D3C8; max-width:50ch; margin:12px 0 28px;}
.cta-band .btn-primary{background:var(--white); color:var(--ink); border-color:var(--white);}
.cta-band .btn-primary:hover{background:var(--accent-2); border-color:var(--accent-2); color:var(--white);}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line); padding:56px 0 32px; margin-top:0;}
.footer-top{display:flex; justify-content:space-between; align-items:flex-start; gap:40px; flex-wrap:wrap;}
.footer-cols{display:flex; gap:64px; flex-wrap:wrap;}
.footer-col h4{font-size:.72rem; letter-spacing:.12em; text-transform:uppercase; color:var(--ink-soft); font-family:var(--sans); margin-bottom:14px;}
.footer-col a{display:block; font-size:.88rem; color:var(--ink); margin-bottom:9px;}
.footer-bottom{display:flex; justify-content:space-between; align-items:center; margin-top:48px; padding-top:24px; border-top:1px solid var(--line); font-size:.78rem; color:var(--ink-soft); flex-wrap:wrap; gap:12px;}
.social-row{display:flex; gap:14px;}
.social-row a{width:34px;height:34px;border:1px solid var(--line);border-radius:50%;display:flex;align-items:center;justify-content:center;}
.social-row a:hover{border-color:var(--ink);}

/* ---------- Contact ---------- */
.contact-section .wrap{max-width:640px;}
.contact-section p.lede{color:var(--ink-soft); font-size:1.05rem;}
.contact-links{margin-top:32px; display:flex; flex-direction:column; gap:14px;}
.contact-links a{font-family:var(--serif); font-size:1.3rem; border-bottom:1px solid var(--line); padding-bottom:10px;}

/* ---------- Empty state ---------- */
.empty-state{text-align:center; padding:80px 20px; color:var(--ink-soft);}

/* ---------- Responsive ---------- */
@media (max-width: 980px){
  .hero .wrap, .about-section .wrap, .book-detail .wrap{grid-template-columns:1fr; gap:40px;}
  .book-detail-cover{position:static; max-width:320px;}
  .book-grid{grid-template-columns:repeat(2,1fr);}
  .featured-strip, .post-grid{grid-template-columns:repeat(2,1fr);}
  .main-nav{display:none;}
  .nav-toggle{display:block;}
}
@media (max-width: 560px){
  .wrap{padding:0 20px;}
  .book-grid{grid-template-columns:repeat(2,1fr); gap:22px 16px;}
  .featured-strip, .post-grid{grid-template-columns:1fr;}
  .footer-top{flex-direction:column;}
}

/* ---------- Admin shell shares some tokens, defined separately in admin.css ---------- */