/* Portfolio Section Styles */
.portfolio-section {
  position: relative;
  padding: var(--section-padding);
  overflow: hidden;
  background: #0a0b1a;
}

.portfolio-container {
  max-width: 2560px;
  margin: 0 auto;
  padding: 0 2rem;
}

.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin: 3rem 0;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.75rem 1.5rem;
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  color: var(--text-light);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--gradient-primary);
  border-color: transparent;
  transform: translateY(-2px);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.portfolio-item {
  position: relative;
  border-radius: 1.5rem;
  overflow: hidden;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.portfolio-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.portfolio-card {
  position: relative;
  border-radius: 1.5rem;
  overflow: hidden;
  background: #12142e;
}

.portfolio-image {
  position: relative;
  aspect-ratio: 16/9;
  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(1.05);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.8));
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  padding: 0;
  opacity: 0;
  transition: opacity 0.4s ease;
}

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

/* Title and description container */
.portfolio-overlay-content {
  background: rgba(21, 67, 192, 0.95);
  padding: 1.2rem 1.5rem;
  width: 100%;
}

.portfolio-overlay h3 {
  color: white;
  font-size: 1.4rem;
  margin-bottom: 0.3rem;
  font-weight: 600;
}

.portfolio-overlay p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 0;
  font-size: 0.95rem;
}

.portfolio-tech {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 0 1.5rem;
  margin: 1rem 0;
}

.portfolio-tech span {
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 100px;
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 500;
}

.portfolio-preview {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 50px;
  height: 50px;
  background: rgba(70, 130, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  transform: scale(0) rotate(-45deg);
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.3s;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1), inset 0 0 0 1px rgba(255, 255, 255, 0.1);
  z-index: 5;
}

.portfolio-card:hover .portfolio-preview {
  transform: scale(1) rotate(0);
}

.portfolio-preview:hover {
  background: rgba(70, 130, 255, 0.4);
  transform: scale(1.15) rotate(0);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2), inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.portfolio-preview::after {
  content: '';
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.1);
  opacity: 0;
  transition: all 0.3s ease;
}

.portfolio-preview:hover::after {
  opacity: 1;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 0.6;
  }
  70% {
    transform: scale(1.1);
    opacity: 0;
  }
  100% {
    transform: scale(1.2);
    opacity: 0;
  }
}

.portfolio-content {
  padding: 1.5rem;
}

.portfolio-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-light);
}

.portfolio-content p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.portfolio-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap 0.3s ease;
}

.portfolio-link:hover {
  gap: 0.75rem;
}

.portfolio-cta {
  display: flex;
  justify-content: center;
  margin-top: 4rem;
}

/* Background Circles */
.bg-circle-3 {
  top: -10%;
  right: -5%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.2), transparent 70%);
}

.bg-circle-4 {
  bottom: -10%;
  left: -5%;
  background: radial-gradient(circle, rgba(252, 96, 103, 0.2), transparent 70%);
}

@media (max-width: 768px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .portfolio-filters {
    gap: 0.5rem;
  }
  
  .filter-btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }
  
  .portfolio-tech {
    gap: 0.4rem;
  }
  
  .portfolio-tech span {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
  }
  
  .portfolio-view-case {
    margin: 1rem;
  }
}

.portfolio-view-case {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.5rem;
  background: rgba(21, 67, 192, 0.95);
  border-radius: 100px;
  color: #ffffff;
  font-weight: 600;
  text-decoration: none;
  margin: 1.5rem;
  transition: all 0.3s ease;
  position: relative;
  z-index: 2;
  cursor: pointer;
  min-width: 180px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  align-self: center;
}

.portfolio-view-case:hover {
  background: rgba(30, 80, 220, 0.95);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

.portfolio-view-case i {
  margin-left: 8px;
  transition: transform 0.3s ease;
}

.portfolio-view-case:hover i {
  transform: translateX(5px);
}