/* Portfolio Section Styles */
.portfolio {
  background-color: var(--white);
  position: relative;
}

.portfolio-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.filter-btn {
  background: none;
  border: none;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gray-700);
  padding: 0.5rem 1.25rem;
  border-radius: 30px;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--navy-900);
  color: var(--white);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.portfolio-item {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  height: 300px;
}

.portfolio-item:hover {
  transform: translateY(-10px);
  box-shadow: var(--box-shadow-lg);
}

.portfolio-image {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.portfolio-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.portfolio-item:hover .portfolio-image img {
  transform: scale(1.1);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(10, 36, 99, 0.9) 0%, rgba(10, 36, 99, 0.6) 50%, rgba(10, 36, 99, 0.2) 100%);
  opacity: 0;
  display: flex;
  align-items: flex-end;
  padding: var(--space-3);
  transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-content {
  width: 100%;
  transform: translateY(20px);
  transition: transform 0.4s ease;
}

.portfolio-item:hover .portfolio-content {
  transform: translateY(0);
}

.portfolio-content h3 {
  color: var(--white);
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.portfolio-content p {
  color: var(--gray-300);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.result {
  display: inline-block;
  background-color: var(--orange-500);
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 30px;
  margin-bottom: var(--space-2);
}

.portfolio-link {
  color: var(--white);
  font-weight: 500;
  font-size: 0.9rem;
  text-decoration: none;
  position: relative;
  display: inline-block;
}

.portfolio-link:after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--orange-500);
  transition: var(--transition);
}

.portfolio-link:hover:after {
  width: 100%;
}

.portfolio-cta {
  text-align: center;
  margin-top: var(--space-5);
}

/* Portfolio Animations */
@keyframes portfolioItemAppear {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.portfolio-item {
  opacity: 0;
}

.portfolio-item.animated {
  animation: portfolioItemAppear 0.6s forwards;
}

.portfolio-item:nth-child(1) {
  animation-delay: 0.1s;
}

.portfolio-item:nth-child(2) {
  animation-delay: 0.2s;
}

.portfolio-item:nth-child(3) {
  animation-delay: 0.3s;
}

.portfolio-item:nth-child(4) {
  animation-delay: 0.4s;
}

/* Category Filtering Animation */
@keyframes portfolioFadeIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.portfolio-item.show {
  display: block;
  animation: portfolioFadeIn 0.5s forwards;
}

.portfolio-item.hide {
  display: none;
}

/* Responsive Styles */
@media screen and (max-width: 992px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media screen and (max-width: 768px) {
  .filter-btn {
    font-size: 0.9rem;
    padding: 0.4rem 1rem;
  }
}

@media screen and (max-width: 576px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
    max-width: 350px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .portfolio-filter {
    gap: 0.5rem;
  }
}