/* ==========================================================================
   ESTILOS DE PÁGINA INDIVIDUAL DE PROYECTO (FONDO BLANCO UNIFICADO)
   ========================================================================== */

.project-detail-hero {
  padding-top: calc(var(--header-height) + 5rem);
  padding-bottom: 3.5rem;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.project-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-secondary);
  margin-bottom: 2.5rem;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.project-back-link:hover {
  color: #000000;
  transform: translateX(-4px);
}

.project-detail-header {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.project-detail-title {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 7.5vw, 7.5rem);
  font-style: italic;
  font-weight: 400;
  line-height: 0.94;
  letter-spacing: -0.02em;
}

.project-detail-metadata-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.meta-block {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.meta-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  font-weight: 600;
}

.meta-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
}

/* Imagen Principal de Proyecto */
.project-hero-media {
  width: 100%;
  aspect-ratio: 21 / 10;
  max-height: 750px;
  overflow: hidden;
  border-radius: var(--radius-md);
  margin-bottom: var(--section-spacing);
  cursor: zoom-in;
  position: relative;
  background-color: var(--color-bg-alt);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

.project-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out-expo);
}

.project-hero-media:hover .project-hero-img {
  transform: scale(1.02);
}

.media-zoom-hint {
  position: absolute;
  bottom: 1.5rem;
  right: 1.5rem;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  pointer-events: none;
}

/* Contenido Editorial del Caso de Estudio */
.case-study-section {
  padding-bottom: var(--section-spacing);
  background-color: var(--color-bg);
}

.case-study-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: clamp(3rem, 6vw, 7rem);
  margin-bottom: var(--section-spacing);
}

.case-section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.2vw, 3.25rem);
  font-style: italic;
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.case-body-text {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.case-body-text p {
  font-size: clamp(1.05rem, 1.2vw, 1.25rem);
  line-height: 1.7;
}

/* Galería de Imágenes con Lightbox */
.case-gallery-section {
  padding-bottom: var(--section-spacing);
  background-color: var(--color-bg);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.5rem, 3vw, 3rem);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  cursor: zoom-in;
  background-color: var(--color-bg-alt);
  aspect-ratio: 4 / 3;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
}

.gallery-item.span-2 {
  grid-column: span 2;
  aspect-ratio: 21 / 10;
}

.gallery-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out-expo);
}

.gallery-item:hover .gallery-img {
  transform: scale(1.025);
}

/* Proceso & Fases */
.case-process-section {
  padding-bottom: var(--section-spacing);
  border-top: 1px solid var(--color-border);
  padding-top: var(--section-spacing);
  background-color: var(--color-bg);
}

.process-steps-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  margin-top: 3rem;
}

.process-step-item {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 2.25rem;
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.03);
}

.step-num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.step-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-style: italic;
  font-weight: 400;
  color: var(--color-text);
}

.step-desc {
  font-size: 0.925rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Resultados & Métricas */
.case-results-card {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: var(--section-spacing);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.04);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.result-num {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 4.5vw, 4.5rem);
  font-style: italic;
  font-weight: 400;
  line-height: 1;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.result-label {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

/* Navegación entre Proyectos */
.project-pagination-section {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 4rem 0;
  background-color: var(--color-bg);
}

.project-pagination-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.pagination-item {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.pagination-item.next {
  text-align: right;
  align-items: flex-end;
}

.pagination-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  font-weight: 600;
}

.pagination-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.75rem);
  font-style: italic;
  font-weight: 400;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.pagination-item:hover .pagination-title {
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.pagination-item.prev:hover { transform: translateX(-6px); }
.pagination-item.next:hover { transform: translateX(6px); }