* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: sans-serif;
    text-decoration: none;
    list-style: none;
}

.header {
    /* background-image: url(../../images/mainback.jpg); */
    background-image: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url(../../images/mainback.jpg);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    padding: 40px 0px;
}
.header-container{
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}
.header-title{
    color: white;
    font-size: 40px;
    margin-top: 10px;
}
@media(max-width:900px){
    .header-title{
        font-size: 30px;
    }
    .header{
        padding: 30px 0px;
    }
}
@media(max-width:550px){
    .header-title{
        font-size: 20px;
    }
    .header{
        padding: 20px 0px;
    }
}
/* navbar */
.navbar-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar {
    padding: 25px 0px;
    box-shadow: rgb(188, 187, 187) 0px 1px 5px 0px;
    border: none;
}

.navbar-list {
    display: flex;
    align-items: center;
    gap: 25px;
}

.navbar-link {
    color: black;
    font-size: 16px;
    font-weight: 600;
}

.navbar-link:hover {
    color: grey;
}

.navbar-link::after {
    color: grey;
}

.btn-bar {
    display: none;
    border: none;
    background-color: white;
}

.fa-bars {
    font-size: 20px;
}

@media(max-width:900px) {
    .navbar-list {
        display: none;
    }

    .btn-bar {
        display: flex;
    }
}
/* modal res */
.modal-res {
    position: fixed;
    top: 0;
    left: 0;
    max-width: 300px;
    width: 100%;
    height: 100%;
    padding: 30px;
    background-color: white;
    z-index: 100;
    box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.3);
    display: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.modal-res-link {
    color: black;
    font-size: 18px;
}

.modal-res-item {
    margin-bottom: 10px;
}

.res-close-btn {
    border: none;
    background-color: white;
    font-size: 20px;
    cursor: pointer;
}
/* activity */
.activity{
    padding: 100px 0px;
}
.activity-container{
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;

}
.activity-title{
    font-size: 25px;
    font-weight: 600;
    color: black;
}

/* footer */
.footer{
    background-color: rgb(34, 58, 58);
    padding: 80px 0px;
}
.footer-container{
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    justify-content: space-between;
}
.footer-social{
    display: flex;
    flex-direction: column;
}
.footer-text{
    color: white;
    font-size: 18px;
}
.footer-link{
    color: white;
    opacity: 0.8;
    margin-bottom: 10px;
}
.footer-link:hover{
    opacity: 1;
}
.footer-item{
    margin-bottom: 10px;
}
@media(max-width:600px) {
    .footer{
        padding: 30px 0px;
    }
}

.activity-title{
    margin-bottom: 50px;
}
.img-box{
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    width: 100%;
}
.activity-text{
   width: 100%;
   line-height: 1.5;
}
.activity-box{
    display: flex;
    flex-direction: column;
   gap: 20px;
   margin-bottom: 70px;
}

.activity-subbox h4{
    font-size: 22px;
}
.activity-subbox{
    display: flex;
    align-items: center;
    gap: 50px;
}



@media(max-width:500px) {
    .activity-box img{
        width: 100% !important;
    }
    .activity-subbox{
        flex-direction: column;
        gap: 20px;
    }
    .activity-subbox video{
        width: 100%;
    }
    .activity-subbox h4{
        font-size: 18px;
    }
    .activity{
        padding: 40px 0px;
    }
}