:root {
  --primary-color: #f68b1f; /* Orange from logo */
  --secondary-color: #4a9d3e; /* Green from logo */
  --accent-color: #007bff; /* Blue from logo waves */
  --neutral-light: #f7fafc;
  --neutral-dark: #2d3748;
}

/* Projects Hero Section */
.projects-hero {
  background: linear-gradient(rgba(44, 82, 130, 0.9), rgba(44, 82, 130, 0.9)),
    url("../images/projects-bg.jpg") center/cover;
  padding: 100px 0;
  margin-top: 76px; /* Adjust based on navbar height */
}

/* Project Categories */
.btn-group .btn-outline-primary {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.btn-group .btn-outline-primary:hover,
.btn-group .btn-outline-primary.active {
  background-color: var(--primary-color);
  color: white;
}

/* Project Cards */
.card {
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
}

.badge {
  font-size: 0.8rem;
  padding: 0.5em 1em;
  margin-right: 0.5rem;
}

/* Accordion Styling */
.accordion-button:not(.collapsed) {
  background-color: var(--primary-color);
  color: white;
}

.accordion-button:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.25rem rgba(44, 82, 130, 0.25);
}

/* Project Categories */
.project-category {
  margin-bottom: 2rem;
}

.project-category h2 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

/* Project Items */
.project-item {
  margin-bottom: 2rem;
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .projects-hero {
    padding: 60px 0;
  }

  .btn-group {
    display: flex;
    flex-wrap: wrap;
  }

  .btn-group .btn {
    flex: 1 1 auto;
    margin: 2px;
  }
}