.hero-section{
    margin-top: -86px;
    height: 100vh;
    width: 100%;
    background-image: url('https://alliances.co.ma/wp-content/uploads/2019/02/slider-hero-home-02.jpg');
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
    position: relative;
}

.hero-section:before{
    position: absolute;
    content: "";
    left: 0;
    top: 0;
    height: 100%;
    width: 100%;
    /*background: rgba(20, 47, 67, 0.35);
    background: linear-gradient(0deg, transparent, #142F43 170%);*/
    transition: background 0.3s, border-radius 0.3s, opacity 0.3s;
    z-index: 1;
}

#header:not(.scrolled) .navbar-nav > li > a {
    text-shadow: 0 0 8px black;
}

#background-video {
    position: absolute;
    top: 0;
    height: 100vh;
    width: 100%;
    object-fit: cover;
    z-index: 0;
}

@media screen and (max-width: 768px) {
    .hero-section, #background-video {
        height: 650px;
    }
}

@media screen and (max-width: 576px) {
    .hero-section, #background-video {
        height: 450px;
    }
}

.hero-section h2{
    font-size: 70px;
    font-weight: 600;
    color: #fff;
}


.title-sm {
    font-weight: 300;
    position: relative;
    z-index: 2;
    display: inline-block;
}

.title-sm:before {
    content: '';
    background: var(--main-color);
    height: 10px;
    width: 100%;
    position: absolute;
    bottom: 21px;
    z-index: -1;
}

#president-word , #group-history{
    background: #f8f9fa;
}

.website-card{
    border-radius: 15px;
    border: 0;
}

.website-card .card-img-top{
    border-top-left-radius: 15px;
    border-top-right-radius: 15px;
    height: 250px;
    object-fit: cover;
}

.website-card .card-body{
    position: relative;
}

.website-card .website-logo{
    position: absolute;
    width: 100%;
    left: -20px;
    top: -30px;
    padding: 10px;
    background-color: white;
    border-radius: 15px;
    box-shadow: 0 0 3px rgba(0,0,0,0.2);
    text-align: center;
}

.website-card .website-logo img{
    height: 40px;
}

.website-card-text{
    font-size: 16px;
    font-weight: 300;
}

.website-card .btn-website{
    background-color: var(--main-color);
    display: block;
    width: fit-content;
    margin-left: auto;
    margin-top: 10px;
    color: #fff;
    font-size: 14px;
}

#numbers-counters{
    font-weight: 900;
}

.activity-card{
    border-radius: 8px;
    box-shadow: 0 0 3px #cbcbcb33;
    border: 0;
}

.activity-card-image{
    display: block;
    width: 150px;
    margin: auto;
    margin-bottom: 15px;
}

.activity-image {
    width: 200px;
}

.activity-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    padding-top: 10px;
}