* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

img {
    max-width: 100%;
    display: block;
}

body {
    max-width: 2000px;
    background-color: black;
}

.wrapper {
    background: linear-gradient(
        to bottom,
        rgba(100,100,90,0.8),
        rgba(10,20,50,0.9)
    ),
    url(images/wavepat.png) no-repeat center center;
      height: 100%;
}

.header{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
}

.header .logo{
    width: 100px;
}

.header .right-nav {
    display: flex;
    align-items: center;
    gap: 15px;
}

.right-nav .nav-bar{
    list-style-type: none;
    align-items: center;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

.right-nav .nav-bar li{
    float: left;
}

.right-nav .nav-bar li a{
    align-items: center;
    display: block;
    text-align: center;
    text-decoration: none;
    padding: 15px;
    color: white;
}

.right-nav .nav-bar li a:hover{
    color: #0d172f;
}

.footer{
    display: flex;
    justify-content: center;
    gap: 15px;
    padding-top: 30px;

}

.footer .fa{
    font-size: 30px;
    width: 30px;
    text-decoration: none;
    border-radius: 50%;
    color: white;
}
.footer .fa:hover{
    color: #4c4d46;
}

.gallery-container{
    max-width: 1500px;
    margin: 0 auto;
}

.gallery-column{
    float: left;
    width: 25%;
    padding: 10px;
}

.expand-img{
    opacity: 0.8;
    cursor: pointer;
}

.expand-img:hover{
    opacity: 1;
}

.gallery-row{
    content: "";
    display: table;
    clear: both;
}

.expand-container{
    position: relative;
    display: none;
}

#img-description{
    position: absolute;
    bottom: 15px;
    left: 15px;
    color: white;
    font-size: 20px;
}

.close-btn{
    position: absolute;
    top: 10px;
    right: 10px;
    color: white;
    font-size: 35px;
    cursor: pointer;
}