* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  color-scheme: light;
  --bg: #f7f4ef;
  --text: #1f1d1b;
  --muted: #5d5651;
  --accent: #8d6d4c;
  --accent-dark: #5f4630;
  --card: #ffffff;
  --border: #e3dbd1;
  font-size: 16px;
}

body {
  font-family: "Georgia", "Times New Roman", serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  position: relative;
}

.bg-layer {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: url("assets/bg-opcion-d.svg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  pointer-events: none;
}

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

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 6vw 0;
}

.top-nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.nav-link {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
}

.nav-link:hover {
  color: var(--accent-dark);
}

.lang-toggle {
  display: flex;
  gap: 8px;
}

.lang-btn {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.9rem;
}

.lang-btn.is-active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

main {
  padding: 32px 6vw 64px;
  display: flex;
  flex-direction: column;
  gap: 72px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(220px, 360px) 1fr;
  gap: 32px;
  align-items: center;
}

.hero-media img {
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.hero-content h1 {
  font-size: clamp(2.4rem, 4vw, 3.5rem);
  margin-bottom: 8px;
}

.subtitle {
  font-size: 1.1rem;
  color: var(--muted);
  margin-bottom: 16px;
}

.lead {
  font-size: 1.15rem;
  margin-bottom: 24px;
}

.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn.secondary {
  background: transparent;
  color: var(--accent-dark);
  border-color: var(--accent-dark);
}

.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 20px;
}

.bio {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.bio-text {
  display: grid;
  gap: 18px;
  max-width: 100%;
}

.socials {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  text-decoration: none;
  color: var(--accent-dark);
  font-weight: 600;
  font-size: 0.95rem;
}

.social-link:hover {
  border-color: var(--accent);
}

.social-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
}

.books {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.blog {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.blog-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.blog-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.05);
}


.blog-card h3 {
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.blog-card h4 {
  font-size: 0.9rem;
  color: var(--accent-dark);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}

.blog-card p {
  color: var(--muted);
}

.blog-card ol {
  margin-left: 18px;
  color: var(--muted);
  display: grid;
  gap: 6px;
}

.newsletter {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
}

.newsletter .section-header p {
  color: var(--muted);
  margin-top: 6px;
  max-width: 680px;
}

.news-list {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.news-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
}

.news-item-content h3 {
  font-size: 1.1rem;
  margin-bottom: 6px;
  color: var(--accent-dark);
}

.news-item-content p {
  margin: 0 0 10px;
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.5;
}

.news-link {
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}

.news-link:hover {
  color: var(--accent-dark);
}

.newsletter-signup {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.newsletter-signup h3 {
  font-size: 1.15rem;
  margin-bottom: 14px;
}

.newsletter-form {
  display: grid;
  gap: 16px;
  max-width: 520px;
}

.newsletter-form label {
  display: grid;
  gap: 6px;
  font-weight: 600;
}

.newsletter-form input {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  font-family: inherit;
}

.form-note {
  margin-top: 6px;
  font-size: 0.85rem;
  color: var(--muted);
}

.book-grid {
  display: grid;
  gap: 48px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.book-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: 100%;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
}

.book-card img {
  max-height: 340px;
  object-fit: contain;
  margin: 0 auto 8px;
}

.book-card h3 {
  font-size: 1.4rem;
  margin-bottom: 4px;
}

.book-card p {
  margin-bottom: 0;
  line-height: 1.65;
}

.tagline {
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-dark);
}

.book-detail {
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
  scroll-margin-top: 24px;
}

.book-detail-inner {
  display: grid;
  grid-template-columns: minmax(180px, 280px) 1fr;
  gap: 40px;
  align-items: start;
  max-width: 900px;
}

.book-detail-cover {
  max-height: 380px;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.book-detail-content h3,
.book-detail-content h1 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.book-page-content {
  padding: 32px 6vw 64px;
  max-width: 900px;
  margin: 0 auto;
}

.book-gallery {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.book-gallery h2 {
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.gallery-grid {
  display: flex;
  flex-direction: column;
  gap: 40px;
  margin-top: 24px;
}

.gallery-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  background: var(--bg-soft);
  padding: 0;
}

.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  order: 1;
}

.gallery-item:nth-child(even) img {
  order: 2;
}

.gallery-item-text {
  padding: 24px 28px;
  order: 2;
}

.gallery-item:nth-child(even) .gallery-item-text {
  order: 1;
}

.gallery-item-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 12px;
  color: var(--text);
}

.gallery-item-prologue {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--muted);
  margin: 0;
}

.book-detail-content .tagline {
  margin-bottom: 20px;
}

.book-detail-content p {
  margin-bottom: 16px;
  line-height: 1.7;
}

.book-detail-content .btn {
  margin-top: 8px;
}

@media (max-width: 640px) {
  .book-detail-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .book-detail-cover {
    max-height: 300px;
    margin: 0 auto;
  }

  .gallery-item {
    grid-template-columns: 1fr;
  }

  .gallery-item img,
  .gallery-item:nth-child(even) img {
    order: 1;
  }

  .gallery-item-text,
  .gallery-item:nth-child(even) .gallery-item-text {
    order: 2;
    padding: 20px;
  }
}

.site-footer {
  padding: 24px 6vw 32px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer a {
  color: inherit;
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--accent-dark);
}

.footer-links {
  margin-top: 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  justify-content: center;
}

.lang-block {
  display: none;
}

body.lang-es .lang-block[data-lang="es"],
body.lang-en .lang-block[data-lang="en"] {
  display: block;
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
  }
}