/* ==========================================================================
   Tagebuch Archiv Portada (Hero Oscuro + Das Archiv Grid)
   ========================================================================== */

/* Navbar Navigation */
.tagebuch-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  mix-blend-mode: difference;
  color: #FFFFFF;
}

.tagebuch-brand-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-style: italic;
  letter-spacing: -0.02em;
}

.tagebuch-brand-sub {
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  opacity: 0.6;
  margin-top: 0.25rem;
  display: block;
}

/* Hero Nocturno */
.hero-nocturno {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-color: var(--color-bg-dark);
  background-image: 
    linear-gradient(rgba(15, 15, 17, 0.82), rgba(15, 15, 17, 0.88)),
    url('../img/hero-portada.webp');
  background-size: cover;
  background-position: center;
  padding: 6rem 1.5rem 4rem;
  color: var(--color-text-light);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  animation: fadeInDown 1.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-location-badge {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.4em;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 700;
  margin-bottom: 2rem;
}

.hero-quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.75rem;
  line-height: 1.45;
  color: #FDFBF8;
  margin-bottom: 2rem;
  font-weight: 400;
}

@media (min-width: 768px) {
  .hero-quote {
    font-size: 2.25rem;
  }
}

.hero-divider {
  width: 50px;
  height: 1px;
  background-color: var(--color-accent);
  margin: 2rem auto;
}

.hero-subtext {
  font-size: 0.9375rem;
  font-style: italic;
  color: rgba(253, 251, 248, 0.75);
  max-width: 620px;
  margin: 0 auto 3rem;
  line-height: 1.7;
}

.btn-hero-archiv {
  display: inline-block;
  padding: 1.125rem 2.5rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #FFFFFF;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.35em;
  font-weight: 600;
  transition: all 0.5s ease;
  background: transparent;
}

.btn-hero-archiv:hover {
  background-color: #FFFFFF;
  color: #0F0F11;
  border-color: #FFFFFF;
  transform: translateY(-2px);
}

/* Section Das Archiv (Papel impreso) */
.section-archiv {
  background-color: var(--color-bg-light);
  padding: 7rem 0 8rem;
}

.archiv-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 4.5rem;
}

.archiv-title {
  font-family: var(--font-serif);
  font-size: 3rem;
  text-transform: uppercase;
  letter-spacing: -0.03em;
  color: var(--color-text-main);
  margin-bottom: 1.25rem;
}

@media (min-width: 768px) {
  .archiv-title {
    font-size: 3.75rem;
  }
}

.archiv-intro {
  font-size: 1.0625rem;
  font-style: italic;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.archiv-badges {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-weight: 700;
  color: var(--color-accent);
}

.dot-separator {
  width: 4px;
  height: 4px;
  background-color: #D6D3D1;
  border-radius: 50%;
}

/* Grid de Sobrecubiertas de Libros */
.archiv-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem 2rem;
}

@media (min-width: 640px) {
  .archiv-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .archiv-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem 3rem;
  }
}

/* Tarjeta Editorial de Libro */
.book-card {
  background-color: var(--color-surface-card);
  border-radius: 2px;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
}

.book-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-book);
}

.book-cover-wrap {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background-color: #E7E5E4;
}

.book-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(35%) sepia(10%);
  transition: filter 0.6s ease, transform 0.6s ease;
}

.book-card:hover .book-cover-img {
  filter: grayscale(0%) sepia(0%);
  transform: scale(1.03);
}

/* Stamp Badge Exlibris */
.stamp-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background-color: rgba(15, 15, 17, 0.85);
  backdrop-filter: blur(4px);
  color: #FDFBF8;
  font-size: 0.5625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  padding: 0.4rem 0.75rem;
  border-radius: 1px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.book-card-body {
  padding: 1.75rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.book-meta-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.book-read-time {
  color: var(--color-text-subtle);
  font-weight: 500;
}

.book-title-es {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--color-text-main);
  line-height: 1.3;
  margin-bottom: 0.5rem;
  transition: color 0.3s ease;
}

.book-card:hover .book-title-es {
  color: var(--color-accent);
}

.book-title-de {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: 1rem;
}

.book-summary {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.75rem;
  flex-grow: 1;
}

.book-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--color-text-main);
  border-bottom: 2px solid var(--color-text-main);
  padding-bottom: 0.35rem;
  width: fit-content;
  transition: all 0.3s ease;
}

.book-card:hover .book-link-btn {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* Footer / Contact & Realidad Return */
.section-cierre-autor {
  background-color: #F7F5F0;
  padding: 5rem 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.autor-firma-nota {
  max-width: 600px;
  margin: 0 auto;
}

.autor-firma-titulo {
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.4em;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.autor-firma-quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--color-text-main);
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.autor-firma-texto {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.autor-contacto-link {
  color: var(--color-text-main);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.3s ease;
}

.autor-contacto-link:hover {
  color: var(--color-accent);
}

.autor-direccion {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--color-text-subtle);
  font-weight: 600;
}

.footer-tagebuch {
  background-color: var(--color-surface-card);
  padding: 4rem 0 3rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.btn-realidad {
  display: inline-block;
  padding: 1rem 2rem;
  border: 1px solid var(--color-text-main);
  color: var(--color-text-main);
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  transition: all 0.4s ease;
}

.btn-realidad:hover {
  background-color: var(--color-text-main);
  color: #FFFFFF;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}