:root {
  --primary-color: #2577B0;
  --secondary-color: #2c3e50;
  --accent-color: #e74c3c;
  --light-gray: #f8f9fa;
  --dark-gray: #343a40;
  --transition-speed: 0.3s;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: #212529;
  line-height: 1.6;
}

main.container {
  flex: 1;
  padding-top: 2rem;
  padding-bottom: 2rem;
}

.navbar {
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  padding: 0.75rem 1rem;
}
.navbar.navbar-light.bg-light {
    background-color: var(--light-gray) !important;
}

.navbar-brand {
  font-weight: 700;
  color: var(--secondary-color) !important;
}

.nav-link {
  font-weight: 500;
  padding: 0.5rem 1rem;
  transition: color var(--transition-speed);
  color: var(--secondary-color);
}

.nav-link:hover, .nav-link:focus, .nav-link.active {
  color: var(--primary-color) !important;
}

.dropdown-menu {
  border: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border-radius: 0.25rem;
}

.dropdown-item {
  padding: 0.5rem 1.5rem;
  transition: background-color var(--transition-speed);
  font-weight: 400;
}
.dropdown-item:hover, .dropdown-item:focus {
    background-color: rgba(37, 119, 176, 0.05);
}
.dropdown-item .material-icons, .dropdown-item .bi {
    margin-right: 0.5rem;
    vertical-align: text-bottom;
}

.btn {
    transition: background-color var(--transition-speed) ease-in-out, border-color var(--transition-speed) ease-in-out, color var(--transition-speed) ease-in-out;
}
.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}
.btn-primary:hover {
  background-color: #2980b9;
  border-color: #2980b9;
}

footer {
  background-color: var(--light-gray);
  padding: 1.5rem 0;
  margin-top: 2rem;
  text-align: center;
  font-size: 0.875rem;
  color: #6c757d;
  border-top: 1px solid #e9ecef;
}

#to-top-button {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: none; /* Hidden by default */
  z-index: 1050; /* Ensure it's above most other content */
  padding: 0.5rem 0.8rem; /* Adjust padding for a better look on the circle */
}

#to-top-button i {
    margin-right: 0; /* Remove margin from icon since it's alone */
    font-size: 1.5rem;
    vertical-align: middle;
}

/* from home.html */
.hero-section h1 {
    position: relative;
    padding-bottom: 1rem;
  }
  
  .hero-section h1::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
    border-radius: 2px;
  }
  
  .card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  
  .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1) !important;
  }

  .material-icons.md-18 {
      font-size: 18px;
  }