header{
    background: rgba(255, 0, 85, 0.5);
}
header .logo img{
    border-radius: 50%;
}
.slider {
    background: url('images/background_image.jpg') no-repeat center center/cover;
}

.about-us {
    display: block;
    text-align: center;
    color: rgb(243, 12, 89);
    padding: 45px 20px;
    font-weight: bold;
}
.about-us p{
    background-color: rgba(248, 238, 238, 0.9);
}
.social-icons {
    position: absolute;
    bottom: 20px;
    align-items: center;
    margin-right: 10%;
}
.why-us .cards .card, .why-us h2, .courses h2{
    color: brown;
}
.courses {
    padding: 20px;
    text-align: center;
    background-color: darkgray;
}

.course-cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.course-card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    margin: 10px;
    padding: 10px;
    width: 200px;
    text-align: center;
    transition: transform 0.3s;
    height: 150px;

}  
.course-card:hover {
    transform: scale(1.05);
}
.course-card img{
    width: 90%;
    height: 60%;
}
.course-card a{
    text-decoration: none;
    color: blue;
}
.course-card a p{
    color: black;
}

.customer-opinions{
    background-color: rgba(173, 62, 62, 0.7);
}
footer{
    background-color: rgba(201, 17, 17, 0.7);
}
@media (max-width: 900px){
    .about-us h2{
        background-color: rgba(184, 195, 255, 0.5)
    }
    .courses{
        padding: 5px;
    }
    .course-card {
        padding: 7px;
        width: 150px;
    }
    .course-card h3{
        font-size: 15px;
        font-weight: bold;
    }
    .course-card p{
        font-size: 14px;
    }
}