/* ===== CAROUSEL COMPONENT ===== */

.carousel-section {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.carousel-section .section-header {
  margin-bottom: var(--space-lg);
}

.carousel-section.section {
  padding-top: var(--space-lg); /* reduce gap after Hero */
  padding-bottom: var(--space-xl); /* avoid overlap with footer */
}

@media (max-width: 640px) {
  .carousel-section.section {
    padding-top: var(--space-sm);
    padding-bottom: var(--space-lg);
  }
  .carousel-section .section-header {
    margin-bottom: var(--space-md);
  }
}

/* Anchor offset so navbar no cubra el encabezado al navegar a #proyectos */
#proyectos { scroll-margin-top: 72px; }

.carousel-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 30% 80%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
  position: relative;
  z-index: 2;
}

.section-title {
  font-size: var(--fs-3xl);
  font-weight: 800;
  line-height: var(--lh-tight);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--lh-relaxed);
}

/* Swiper Carousel Styling */
.epic-carousel {
  position: relative;
  padding-bottom: var(--space-xl);
  overflow: visible;
}

.swiper-slide {
  height: auto;
  opacity: 0.7;
  transform: scale(0.9);
  transition: all var(--transition-slow);
}

.swiper-slide-active {
  opacity: 1;
  transform: scale(1);
}

/* Project Card */
.project-card {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-primary);
  transition: all var(--transition-normal);
  height: 500px;
  cursor: pointer;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-2xl);
  border-color: var(--primary-color);
}

.project-image {
  position: relative;
  width: 100%;
  height: 300px;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-image img {
  transform: scale(1.1);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(0, 0, 0, 0.3) 50%,
    rgba(0, 0, 0, 0.8) 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-xl);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  background: var(--primary-gradient);
  color: white;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-md);
  z-index: 2;
}

.project-content {
  padding: var(--space-xl);
  position: relative;
  z-index: 2;
}

.project-title {
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  line-height: var(--lh-tight);
}

.project-description {
  font-size: var(--fs-base);
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-lg);
}

.project-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.stat-item {
  background: var(--bg-tertiary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  border: 1px solid var(--border-primary);
}

/* Swiper Navigation */
.swiper-button-next,
.swiper-button-prev {
  width: 50px;
  height: 50px;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  transform: scale(1.1);
  box-shadow: var(--shadow-glow);
}

.swiper-button-next::after,
.swiper-button-prev::after {
  font-size: 18px;
  font-weight: 700;
}

/* Swiper Pagination */
.swiper-pagination {
  position: relative;
  margin-top: var(--space-xl);
}

.swiper-pagination-bullet {
  width: 12px;
  height: 12px;
  background: var(--bg-tertiary);
  border: 2px solid var(--border-primary);
  opacity: 1;
  transition: all var(--transition-normal);
}

.swiper-pagination-bullet-active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  transform: scale(1.3);
  box-shadow: var(--shadow-glow);
}

/* Responsive Design */
@media (max-width: 640px) {
  .project-card {
    height: 400px;
  }
  
  .project-image {
    height: 250px;
  }
  
  .project-content {
    padding: var(--space-lg);
  }
  
  .project-title {
    font-size: var(--fs-lg);
  }
  
  .swiper-button-next,
  .swiper-button-prev {
    width: 40px;
    height: 40px;
  }
  
  .swiper-button-next::after,
  .swiper-button-prev::after {
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .swiper-button-next,
  .swiper-button-prev {
    display: none;
  }
  
  .project-stats {
    flex-direction: column;
    gap: var(--space-xs);
  }
  
  .stat-item {
    text-align: center;
  }
}

/* Loading State */
.carousel-loading {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 500px;
  color: var(--text-secondary);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-primary);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Accessibility */
.project-card:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 4px;
}

.swiper-button-next:focus-visible,
.swiper-button-prev:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Performance optimizations */
.epic-carousel {
  contain: layout;
}

.project-card {
  contain: layout style paint;
  will-change: transform;
}

.project-image img {
  will-change: transform;
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .project-card {
    border-width: 2px;
  }
  
  .project-badge {
    border: 2px solid white;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .swiper-slide {
    transition: none;
  }
  
  .project-card:hover {
    transform: none;
  }
  
  .project-image img {
    transition: none;
  }
  
  .project-card:hover .project-image img {
    transform: none;
  }
}