body {
    font-family: 'Arial', sans-serif;
    padding-top: 56px; /* For fixed navbar */
}

.navbar {
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.9) !important;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05) !important;
}

.navbar-brand {
    font-weight: 700;
    color: #2c3e50 !important;
    transition: transform 0.3s ease;
}

.navbar-brand:hover {
    transform: scale(1.05);
    color: #3498db !important;
}

.navbar-nav .nav-link {
    color: #34495e !important;
    font-weight: 500;
    margin: 0 10px;
    position: relative;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link::before {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    bottom: -5px;
    left: 50%;
    background-color: #3498db;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover {
    color: #3498db !important;
}

.navbar-nav .nav-link:hover::before {
    width: 100%;
}

.navbar-nav .nav-link.active {
    color: #3498db !important;
}

.navbar-nav .nav-link.active::before {
    width: 100%;
    background-color: #3498db;
}

.navbar-nav .nav-link i {
    margin-right: 5px;
    transition: transform 0.3s ease;
}

.navbar-nav .nav-link:hover i {
    transform: scale(1.2);
}

.card {
    transition: transform 0.3s;
}

.card:hover {
    transform: scale(1.05);
}

footer {
    background-color: #f8f9fa;
}

/* Course Cards */
.course-card {
    transition: transform 0.3s, box-shadow 0.3s;
    overflow: hidden;
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1) !important;
}

.course-card .card-img-top {
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s;
}

.course-card:hover .card-img-top {
    transform: scale(1.1);
}

/* Slider Styles */
#heroCarousel .carousel-item img {
    height: 500px;
    object-fit: cover;
    filter: brightness(70%);
}

#heroCarousel .carousel-caption {
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 10px;
    padding: 15px;
}

#heroCarousel .carousel-control-prev-icon,
#heroCarousel .carousel-control-next-icon {
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
}

/* Accordion Styles */
.accordion-button {
    font-weight: bold;
}

.accordion-button:not(.collapsed) {
    background-color: #f8f9fa;
}

/* Course Detail Cards */
.course-detail-card {
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
}

.course-detail-card .card-header {
    padding: 15px;
    border-bottom: none;
}

.course-detail-card .card-img-top {
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s;
}

.course-detail-card:hover .card-img-top {
    transform: scale(1.1);
}

.course-detail-card .card-body {
    padding: 20px;
}

.course-detail-card ul li {
    margin-bottom: 5px;
}

.course-detail-card .card-footer {
    background-color: transparent;
    border-top: none;
    padding: 15px;
}

.course-detail-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1) !important;
}

/* Image Loading and Error Handling */
img {
    object-fit: cover;
    transition: opacity 0.3s ease;
}

img:not([src]) {
    opacity: 0;
}

img[src=""] {
    background-color: #f0f0f0;
    min-height: 200px;
}

img::before {
    content: "Image Loading...";
    display: block;
    text-align: center;
    background-color: #f0f0f0;
    color: #666;
    padding: 20px;
}

img:error {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8d7da;
    color: #721c24;
    min-height: 200px;
}

img:error::before {
    content: "Image Failed to Load";
    text-align: center;
}

/* Footer Styles */
footer .social-links a {
    font-size: 1.5rem;
    transition: color 0.3s;
}

footer .social-links a:hover {
    color: #0d6efd !important;
}