.hero {
    position: relative;
    height: 280px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-heading {
    color: white;
    font-size: 3.5rem;
    text-align: center;
    z-index: 1;
}

/**/
.course-card {
    transition: transform 0.3s ease;
    margin-bottom: 60px;
    background-color: rgb(24, 10, 61);
}
.course-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}
.card-img-top {
    height: 400px;
    object-fit: cover;
}
.card-body h5{
    font-size: 30px;
    text-align: center;
    color: white;
}
.card-body p, h6, li{
    color: white;
}

.key-features {
    list-style-type: none;
    padding-left: 0;
}
.key-features li {
    margin-bottom: 10px;
}
.key-features li::before {
    content: "✓";
    color: rgb(171, 191, 171);
    margin-right: 8px;
}
/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s, transform 0.8s;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}
.whatsapp-icon {
    background-color: #fcfbfd; 
    border-radius: 50%; 
    box-shadow: 0 2px 5px rgba(15, 15, 15, 0.3); 
    padding: 18px; 
}