* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #2f2f2f;
  background: #fffdf9;
  line-height: 1.6;
}

img {
  display: block;
  max-width: 100%;
}

.container {
  width: min(92%, 1120px);
  margin: 0 auto;
}

.narrow {
  max-width: 760px;
  margin: 0 auto;
}

section {
  padding: 80px 0;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(2.3rem, 5vw, 4.3rem);
  line-height: 1.05;
  color: #142c46;
  margin-bottom: 18px;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1.15;
  color: #142c46;
  margin-bottom: 22px;
}

/* HERO */
.hero {
  padding: 70px 0 50px;
  background:
    linear-gradient(180deg, #f8f4ec 0%, #fffdf9 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 60px;
  align-items: center;
}

.book-cover {
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.16);
  background: #fff;
}

.book-cover img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9b6b3d;
}

.subtitle {
  font-size: 1.2rem;
  color: #4e5a67;
  margin-bottom: 18px;
  max-width: 700px;
}

.quote {
  font-size: 1.12rem;
  font-style: italic;
  color: #7a5533;
  margin-bottom: 22px;
  max-width: 760px;
}

.hero-text {
  font-size: 1.05rem;
  color: #42505d;
  max-width: 760px;
  margin-bottom: 30px;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

/* BOTONES */
.btn-primary {
  background: #142c46;
  color: #fff;
  padding: 14px 24px;
  border-radius: 8px;
  text-decoration: none;
  display: inline-block;
  font-weight: 700;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn-primary:hover {
  transform: translateY(-1px);
  opacity: 0.95;
}

.btn-primary.big {
  padding: 16px 30px;
  font-size: 1.05rem;
}

.btn-secondary {
  color: #142c46;
  text-decoration: none;
  font-weight: 700;
  padding: 14px 0;
}

/* AUTOR / LIBRO */
.autor-top {
  padding-top: 50px;
}

.autor-inner,
.libro-inner {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 46px;
  align-items: center;
}

.libro-inner {
  grid-template-columns: 1fr 360px;
}

.portrait-frame,
.back-cover-frame {
  border-radius: 18px;
  overflow: hidden;
  background: #f3efe7;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.10);
}

.portrait-frame {
  max-width: 320px;
  margin: 0 auto;
}

.portrait-frame img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center top;
}

.back-cover-frame {
  max-width: 360px;
  margin-left: auto;
}

.back-cover-frame img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.autor-text p,
.libro-text p,
.historia p,
.footer p {
  font-size: 1.05rem;
  color: #47525d;
}

.book-points {
  margin: 0 0 28px;
  padding-left: 20px;
}

.book-points li {
  margin-bottom: 8px;
  color: #47525d;
}

/* HISTORIA */
.historia {
  background: #fff;
}

.historia .narrow {
  text-align: left;
}

/* GALERÍA */
.galeria {
  background: #f8f4ec;
}

.section-heading {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 32px;
}

.section-heading p {
  color: #5c6670;
}

.grid-galeria {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.gallery-item {
  border-radius: 16px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.08);
}

.gallery-item img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  object-position: center;
}

/* CTA FINAL */
.cta-final {
  text-align: center;
  background: linear-gradient(180deg, #fffdf9 0%, #f4efe6 100%);
}

.center {
  max-width: 760px;
  margin: 0 auto;
}

.cta-final p {
  font-size: 1.08rem;
  color: #4f5963;
  margin-bottom: 28px;
}

/* FOOTER */
.footer {
  padding: 55px 0;
  background: #142c46;
  color: #fff;
}

.footer-inner {
  max-width: 900px;
}

.footer p {
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 18px;
}

.footer strong {
  color: #fff;
}

.footer-link {
  margin-top: 24px;
}

.footer-link a {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}

.footer-link {
  display: flex;
  align-items: center;
  justify-content: center;
  /* o flex-start si lo quieres a la izquierda */
  gap: 10px;
}

.footer-link img {
  height: 32px !important;
  width: auto;
  display: block;
}

.footer-link a {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  line-height: 1;
}

/* RESPONSIVE */
@media (max-width: 980px) {

  .hero-inner,
  .autor-inner,
  .libro-inner {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .hero-book,
  .autor-image,
  .libro-image {
    order: -1;
  }

  .book-cover,
  .portrait-frame,
  .back-cover-frame {
    margin: 0 auto;
  }

  .hero-content,
  .autor-text,
  .libro-text {
    text-align: left;
  }
}

@media (max-width: 768px) {
  section {
    padding: 60px 0;
  }

  .hero {
    padding: 40px 0 30px;
  }

  .grid-galeria {
    grid-template-columns: 1fr;
  }

  .gallery-item img {
    height: 320px;
  }

  .cta {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-primary,
  .btn-secondary {
    text-align: center;
  }
}