/* =========================================================
   La Biblia Redpill — estilo "Liber Sacer"
   (pergamino, tinta marrón, rúbricas rojas y laurel dorado,
   tomado del PDF de La Biblia de Andrew Tate)
   ========================================================= */
:root {
  --parch: #efe3c8;
  --parch-2: #e7d8b6;
  --parch-3: #f6eedb;
  --ink: #2b1f17;
  --ink-soft: #5c4a3a;
  --red: #9b2a20;
  --red-dark: #7a1f17;
  --gold: #a87f2e;
  --gold-soft: rgba(168, 127, 46, .35);
  --line: rgba(92, 74, 58, .28);
  --radius: 6px;
  --serif: "Libre Baskerville", Georgia, serif;
  --body: "Lora", Georgia, serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--parch);
  color: var(--ink);
  font: 400 18px/1.7 var(--body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
/* Textura sutil de papel */
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(255,255,255,.35), transparent 50%),
    radial-gradient(ellipse at 80% 90%, rgba(120,90,40,.10), transparent 55%),
    var(--parch);
}
img { display: block; max-width: 100%; }
a { color: inherit; }
::selection { background: var(--red); color: var(--parch-3); }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--parch-2); }
::-webkit-scrollbar-thumb { background: var(--gold); border-radius: 10px; }

.wrap { width: min(1160px, 100% - 32px); margin-inline: auto; }
.wrap--narrow { width: min(780px, 100% - 32px); }

/* ---------- Tipografía ---------- */
.rubric {
  font: 700 13px/1 var(--serif);
  letter-spacing: .35em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 14px;
}
.rubric--c { text-align: center; }
.head { text-align: center; margin-bottom: 40px; }
.head .laurel { margin: 0 auto 14px; }
.h2 { font: 700 clamp(28px, 4.4vw, 46px)/1.15 var(--serif); color: var(--ink); }
.head__sub { font-style: italic; color: var(--ink-soft); margin-top: 8px; }
.h3 { font: 700 22px/1.3 var(--serif); margin-bottom: 6px; }
.lead { color: var(--ink-soft); font-size: 19px; max-width: 680px; }
.lead--c { margin-inline: auto; text-align: center; }

/* ---------- Laurel (lo dibuja main.js) ---------- */
.laurel { width: 170px; height: 64px; color: var(--gold); }
.laurel--sm { width: 120px; height: 46px; }
.laurel--xs { width: 80px; height: 30px; }
.laurel svg { width: 100%; height: 100%; display: block; }

/* ---------- Meandro griego ---------- */
.meander {
  height: 18px;
  background-color: var(--gold);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 18 18'%3E%3Cpath d='M1 16V2h14v11H5V6h6v4' fill='none' stroke='%239b2a20' stroke-width='1.6'/%3E%3C/svg%3E");
  background-size: 18px 18px;
  border-block: 2px solid var(--gold);
  opacity: .9;
}
.meander--thin { height: 12px; background-size: 12px 12px; max-width: 520px; margin: 10px auto 14px; border-width: 1px; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 17px 32px;
  border-radius: 3px;
  background: var(--red);
  color: var(--parch-3);
  font: 700 15px/1 var(--serif);
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--red-dark);
  box-shadow: 0 0 0 3px var(--parch), 0 0 0 4px var(--gold), 0 14px 26px -14px rgba(122,31,23,.8);
  transition: transform .25s, background .25s;
}
.btn:hover { transform: translateY(-2px); background: var(--red-dark); }
.btn--sm { padding: 10px 18px; font-size: 12px; box-shadow: 0 0 0 2px var(--parch), 0 0 0 3px var(--gold); }
.btn--block { width: 100%; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 50;
  padding: 16px 0;
  transition: background .3s, padding .3s, border-color .3s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(239, 227, 200, .88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 9px 0;
  border-color: var(--gold-soft);
}
.nav__in { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.nav__logo { font: 700 17px/1.1 var(--serif); text-decoration: none; display: grid; }
.nav__liber { font-size: 9px; letter-spacing: .35em; color: var(--red); margin-bottom: 3px; }
.nav__links { display: flex; gap: 28px; }
.nav__links a { text-decoration: none; color: var(--ink-soft); font-size: 15px; font-style: italic; transition: color .2s; }
.nav__links a:hover { color: var(--red); }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100svh; display: flex; align-items: center; padding: 120px 0 80px; overflow: hidden; }
.hero__glow {
  position: absolute; right: -10%; top: -10%; width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(168,127,46,.22), transparent 62%);
  pointer-events: none;
}
.hero__grid { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
.hero__text .laurel { margin-bottom: 10px; }
.hero__title { font: 700 clamp(50px, 8vw, 100px)/1 var(--serif); margin-bottom: 22px; letter-spacing: -.01em; }
.hero__title span { color: var(--red); }
.hero__sub { font-style: italic; color: var(--ink-soft); font-size: 21px; max-width: 520px; margin-bottom: 26px; }
.hero__gift {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 8px 16px 8px 8px; margin-bottom: 32px;
  border: 1px solid var(--gold-soft); border-radius: 3px;
  background: rgba(246, 238, 219, .6);
  font-size: 16px;
}
.tag { background: var(--red); color: var(--parch-3); font: 700 11px/1 var(--serif); letter-spacing: .25em; padding: 7px 10px; }
.hero__secure { margin-top: 18px; font-size: 14px; font-style: italic; color: var(--ink-soft); }
.hero__books { position: relative; height: 520px; }
.hero__books .book--main { position: absolute; left: 4%; top: 0; width: 290px; z-index: 2; }
.hero__books .book--gift { position: absolute; right: 0; bottom: 0; width: 240px; z-index: 1; }

/* ---------- Libros (mockup CSS estilo pergamino) ---------- */
.book {
  position: relative; aspect-ratio: 923 / 1310;
  transform: perspective(1200px) rotateY(-16deg) rotateX(2deg);
  transition: transform .6s cubic-bezier(.2,.7,.2,1);
}
.book:hover { transform: perspective(1200px) rotateY(-5deg) translateY(-8px); }
.book--gift { transform: perspective(1200px) rotateY(-12deg) rotateZ(4deg); }
.book__cover {
  position: absolute; inset: 0; overflow: hidden;
  border-radius: 2px 6px 6px 2px;
  background:
    linear-gradient(90deg, rgba(60,40,20,.35), transparent 7%),
    radial-gradient(ellipse at 50% 30%, var(--parch-3), var(--parch-2) 85%);
  box-shadow: 26px 34px 50px -22px rgba(60,40,20,.65), 0 0 0 1px rgba(92,74,58,.25);
}
.book--main .book__cover {
  background:
    linear-gradient(90deg, rgba(0,0,0,.45), transparent 7%),
    radial-gradient(ellipse at 50% 30%, #3a1712, #1f0b08 85%);
}
.book__cover img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 2; }
.book__fallback {
  position: absolute; inset: 8%;
  border: 1px solid var(--gold-soft);
  outline: 1px solid var(--gold-soft); outline-offset: 4px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  text-align: center; padding: 10px;
}
.book__rubric { font: 700 10px/1 var(--serif); letter-spacing: .3em; color: var(--red); margin-bottom: 8px; }
.book__big { font: 700 clamp(20px, 2.4vw, 30px)/1.05 var(--serif); color: var(--ink); }
.book__de { font: 700 13px/1 var(--serif); letter-spacing: .3em; color: var(--gold); }
.book__motto { font: 700 8px/1.4 var(--serif); letter-spacing: .2em; color: var(--red); margin-top: 14px; }
.book--main .book__big { color: var(--parch); }
.book--main .book__rubric { color: #d9a441; }
.book--main .laurel { color: #d9a441; margin-top: 10px; }
.book__ribbon {
  position: absolute; top: -12px; right: -8px; z-index: 3;
  background: var(--red); color: var(--parch-3);
  font: 700 12px/1 var(--serif); letter-spacing: .2em;
  padding: 9px 14px;
  box-shadow: 0 8px 18px -6px rgba(122,31,23,.8);
}

/* ---------- Secciones ---------- */
.section { position: relative; padding: 110px 0; }
.section--tight { padding: 30px 0 90px; }

.chapters { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 48px; }
.chapter {
  position: relative; padding: 30px 26px;
  background: var(--parch-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .35s, box-shadow .35s, border-color .35s;
}
.chapter::after { content: ""; position: absolute; inset: 6px; border: 1px solid rgba(168,127,46,.18); border-radius: 3px; pointer-events: none; }
.chapter:hover { transform: translateY(-5px); border-color: var(--gold); box-shadow: 0 18px 36px -22px rgba(60,40,20,.55); }
.chapter__n { font: 700 13px/1 var(--serif); letter-spacing: .3em; color: var(--red); display: block; margin-bottom: 12px; }
.chapter__n::before { content: "LIBER · "; }
.chapter h3 { font: 700 19px/1.3 var(--serif); margin-bottom: 6px; }
.chapter p { color: var(--ink-soft); font-size: 16px; font-style: italic; }

/* Regalo */
.section--gift { background: var(--parch-2); overflow: hidden; border-block: 1px solid var(--gold-soft); }
.gift__bg {
  position: absolute; left: 50%; top: 50%; translate: -50% -50%;
  font: 700 min(24vw, 320px)/1 var(--serif); letter-spacing: .05em;
  color: transparent; -webkit-text-stroke: 1px rgba(155,42,32,.08);
  white-space: nowrap; pointer-events: none;
}
.gift { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.prologue {
  background: var(--parch-3); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 30px 26px; color: var(--ink);
}
.prologue__lead { text-align: center; color: var(--ink-soft); margin-bottom: 14px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 22px 0; }
.stat { text-align: center; padding: 18px 8px; border-top: 2px solid var(--gold); border-bottom: 1px solid var(--gold-soft); }
.stat b { display: block; font: 700 42px/1 var(--serif); color: var(--red); }
.stat span { font: 700 11px/1 var(--serif); letter-spacing: .3em; text-transform: uppercase; color: var(--ink-soft); }
.verse { background: var(--parch-3); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 30px; }
.verse figcaption { text-align: center; margin-bottom: 14px; }
.verse figcaption .rubric { display: block; margin-bottom: 6px; }
.verse figcaption em { color: var(--ink-soft); }
.verse p { font-size: 18px; }
.verse sup { color: var(--red); font-weight: 700; font-size: 11px; margin-right: 2px; }
.dropcap {
  float: left; font: 700 64px/.8 var(--serif); color: var(--red);
  margin: 8px 10px 0 0; text-shadow: 2px 2px 0 rgba(168,127,46,.45);
}
.index { background: var(--parch-3); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px; }
.index__title { font: 700 32px/1 var(--serif); text-align: center; margin-bottom: 18px; }
.index__list { list-style: none; }
.index__list li {
  display: grid; grid-template-columns: 52px 1fr; gap: 10px; align-items: baseline;
  padding: 8px 0; border-bottom: 1px dotted var(--ink-soft);
  font-size: 16px;
  transition: background .2s, padding .2s;
}
.index__list li:hover { background: rgba(168,127,46,.10); padding-left: 6px; }
.index__list b { font: 700 14px/1 var(--serif); color: var(--red); text-align: right; }

/* Oferta */
.offer {
  position: relative; max-width: 520px; margin: 0 auto;
  padding: 44px 36px 34px;
  background: var(--parch-3);
  border: 1px solid var(--gold);
  outline: 1px solid var(--gold-soft); outline-offset: -10px;
  border-radius: var(--radius);
  box-shadow: 0 40px 70px -40px rgba(60,40,20,.6);
}
.offer__seal {
  position: absolute; top: -32px; right: 26px;
  width: 70px; height: 70px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #b8382c, var(--red-dark) 70%);
  color: var(--parch-3);
  display: grid; place-items: center;
  font: 700 24px/1 var(--serif);
  box-shadow: 0 0 0 4px rgba(122,31,23,.25), 0 10px 20px -8px rgba(122,31,23,.8);
  rotate: 10deg;
}
.offer__list { list-style: none; margin-bottom: 26px; }
.offer__list li { display: flex; justify-content: space-between; gap: 12px; padding: 14px 0; border-bottom: 1px dotted var(--ink-soft); font-weight: 600; }
.offer__list b { color: var(--ink-soft); font-weight: 400; font-style: italic; font-size: 15px; white-space: nowrap; }
.offer__list b.free { color: var(--red); font: 700 12px/1.8 var(--serif); font-style: normal; letter-spacing: .25em; text-transform: uppercase; }
.offer__price { text-align: center; margin-bottom: 26px; }
.offer__price small { display: block; font: 700 11px/1 var(--serif); letter-spacing: .3em; text-transform: uppercase; color: var(--ink-soft); }
.offer__price strong { display: block; font: 700 60px/1.15 var(--serif); color: var(--red); }
.offer__price span { color: var(--ink-soft); font-size: 14px; font-style: italic; }
.offer__trust { list-style: none; margin-top: 24px; display: grid; gap: 4px; text-align: center; color: var(--ink-soft); font-size: 14px; font-style: italic; }

/* Garantía */
.guarantee {
  display: flex; gap: 28px; align-items: center; max-width: 820px;
  padding: 30px; background: var(--parch-3);
  border: 1px solid var(--line); border-radius: var(--radius);
}
.guarantee p { color: var(--ink-soft); }
.guarantee__badge {
  flex: none; width: 108px; height: 108px; border-radius: 50%;
  border: 3px double var(--gold);
  display: grid; place-content: center; text-align: center; color: var(--red);
}
.guarantee__badge b { font: 700 38px/1 var(--serif); }
.guarantee__badge span { font: 700 10px/1.6 var(--serif); letter-spacing: .3em; }

/* FAQ */
.faq { display: grid; gap: 10px; }
.faq details { background: var(--parch-3); border: 1px solid var(--line); border-radius: var(--radius); }
.faq summary {
  cursor: pointer; list-style: none; padding: 18px 22px;
  font: 700 17px/1.4 var(--serif);
  display: flex; justify-content: space-between; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--red); font-size: 24px; line-height: 1; transition: rotate .25s; }
.faq details[open] summary::after { rotate: 45deg; }
.faq details p { padding: 0 22px 20px; color: var(--ink-soft); }

/* CTA final */
.final { padding: 110px 0; background: radial-gradient(ellipse at center, rgba(168,127,46,.18), transparent 65%); }
.final__in { text-align: center; }
.final .laurel { margin: 0 auto 16px; }
.final .h2 { margin-bottom: 14px; }
.final .lead { margin-bottom: 34px; }
.final .lead b { color: var(--red); }

/* Footer */
.footer { padding: 40px 0 110px; border-top: 1px solid var(--gold-soft); }
.footer__in { text-align: center; color: var(--ink-soft); font-size: 14px; }
.footer__in p { margin-bottom: 4px; }
.footer__small a { color: var(--red); }

/* Barra fija móvil */
.sticky-cta {
  position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 60;
  display: none; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 10px 10px 18px;
  background: rgba(246, 238, 219, .95);
  backdrop-filter: blur(10px);
  border: 1px solid var(--gold); border-radius: var(--radius);
  box-shadow: 0 10px 30px -12px rgba(60,40,20,.6);
  transform: translateY(150%); transition: transform .35s;
  font-weight: 600;
}
.sticky-cta b { color: var(--red); }
.sticky-cta.is-visible { transform: none; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); transition-delay: var(--d, 0s); }
.reveal.is-in { opacity: 1; transform: none; }
.book.reveal { transform: perspective(1200px) rotateY(-40deg) translateY(40px); }
.book.reveal.is-in { transform: perspective(1200px) rotateY(-16deg) rotateX(2deg); }
.book--gift.reveal.is-in { transform: perspective(1200px) rotateY(-12deg) rotateZ(4deg); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .nav__links { display: none; }
  .hero { padding-top: 100px; }
  .hero__grid, .gift { grid-template-columns: 1fr; }
  .hero__text { text-align: center; }
  .hero__text .laurel { margin-inline: auto; }
  .hero__sub { margin-inline: auto; }
  .hero__books { height: 400px; max-width: 380px; width: 100%; margin: 0 auto; order: -1; }
  .hero__books .book--main { width: 210px; left: 0; }
  .hero__books .book--gift { width: 175px; }
  .chapters { grid-template-columns: 1fr 1fr; }
  .sticky-cta { display: flex; }
}
@media (max-width: 560px) {
  body { font-size: 17px; }
  .chapters { grid-template-columns: 1fr; }
  .hero__gift { font-size: 14px; text-align: left; }
  .guarantee { flex-direction: column; text-align: center; }
  .offer { padding: 40px 22px 28px; }
  .prologue, .verse, .index { padding: 24px 20px; }
  .stat b { font-size: 34px; }
  .stat span { letter-spacing: .15em; }
  .section { padding: 84px 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}