/* ========================================
   PORTFOLIO SECTION
======================================== */

/* Secciones comunes */
.portfolio {
  padding: 4.5rem 1.5rem;
  background-color: var(--color-bg-secondary);
}

/* Grid Portfolio */
.portfolio__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 480px) {
  .portfolio__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

@media (min-width: 992px) {
  .portfolio__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Portfolio Item */
.card--portfolio {
  display: flex;
  flex-direction: column;
  background: #1A1A1A;
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
}

.card--portfolio:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), var(--glow-soft);
  border-color: rgba(102, 126, 234, 0.3);
}

/* Card Image */
.card__image-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  background-color: #1A1A1A;
}

.card__image {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-slow);
}

.card__placeholder {
  width: 64px;
  height: 64px;
  color: rgba(255, 255, 255, 0.4);
}

/* Overlay */
.card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
  backdrop-filter: blur(2px);
}

.card--portfolio:hover .card__image {
  transform: scale(1.08);
}

.card--portfolio:hover .card__overlay {
  opacity: 1;
}

/* Link button */
.card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--gradient-button);
  background-size: 200% 200%;
  color: white;
  text-decoration: none;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transform: translateY(15px);
  opacity: 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
  box-shadow: 0 4px 15px rgba(29, 161, 242, 0.3);
  animation: gradientShift 5s ease infinite;
}

.card__link:hover {
  transform: translateY(0) scale(1.05);
  box-shadow: 0 8px 25px rgba(29, 161, 242, 0.45);
  filter: brightness(1.1);
}

.card--portfolio:hover .card__link {
  transform: translateY(0);
  opacity: 1;
}

/* Card Content */
.card__content {
  padding: 1.25rem 1.25rem 1.5rem;
  text-align: left;
  background: #1A1A1A;
}

/* Tipo de proyecto */
.card__type {
  display: inline-block;
  padding: 0.35rem 0.875rem;
  background: rgba(102, 126, 234, 0.15);
  color: #a5b4fc;
  font-family: var(--font-primary);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
}

.card__title {
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.5rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.card__text {
  font-family: var(--font-primary);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (min-width: 480px) {
  .card__content {
    padding: 1.5rem 1.5rem 1.75rem;
  }
  
  .card__title {
    font-size: 1.125rem;
  }
  
  .card__text {
    font-size: 0.9375rem;
  }
}

/* Animaciones entrada */
@media (prefers-reduced-motion: no-preference) {
  .card--portfolio {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
  }
  
  .portfolio__grid .card--portfolio:nth-child(1) { animation-delay: 0.1s; }
  .portfolio__grid .card--portfolio:nth-child(2) { animation-delay: 0.2s; }
  .portfolio__grid .card--portfolio:nth-child(3) { animation-delay: 0.3s; }
}