.main_wrapper {
    margin: 0 20vw;
}

.gallery_wrapper {
    margin: 0 20vw;
}

p {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
}

h2 {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 32px;
}

#main_header nav {
    display: grid;
    grid-template-columns: 240px 3fr;
    grid-template-rows: auto;
    padding-bottom: 60px;
}

#main_header nav img {
    height: 50px;
    margin: 25px 0;
    border-radius: 50px;
}

#main_header nav ul {
    justify-self: end;
}

#main_header nav ul li {
    display: inline-block;
    list-style: none;
    justify-self: end;
    margin: 40px 0 40px 30px;
}

#main_header nav ul li a {
    color: #111111;
    font-family: Arial, Helvetica, sans-serif;
    text-decoration: none;
    text-transform: uppercase;
}

#main_header nav ul li a:hover {
    opacity: 0.7;
}

#index_section {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    grid-template-rows: auto;
    grid-gap: 10px;
    grid-template-areas:
    "gallery_p gallery_p gallery_p gallery_p"
    "gallery_h2 gallery_h2 gallery_h2 gallery_h2" 
    "img1 img2 img3 img4"
    "img5 img2 img6 img7";
}

#index_section .img_gallery {
    width: 100%;
    height: 300px;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    cursor: pointer;
}

#index_section p {
    grid-area: gallery_p;
}

#index_section h2 {
    grid-area: gallery_h2;
}

#index_section .img1 {
    grid-area: img1;
    background-image: url("img1.JPG");
}

#index_section .img2 {
    grid-area: img2;
    background-image: url("img2.JPG");
    height: 610px;
}

#index_section .img3 {
    grid-area: img3;
    background-image: url("img3.JPG");
}

#index_section .img4 {
    grid-area: img4;
    background-image: url("img4.JPG");
}

#index_section .img5 {
    grid-area: img5;
    background-image: url("img5.JPG");
}

#index_section .img6 {
    grid-area: img6;
    background-image: url("img6.JPG");
}

#index_section .img7 {
    grid-area: img7;
    background-image: url("img7.JPG");
}

.img_gallery div {
    width: 100%;
    height: 100%;
    background-color: #000000;
    opacity: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.img_gallery a {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 20px;
    color: white;
    text-decoration: none;
    text-transform: uppercase;
}

.img_gallery div:hover {
    opacity: 0.8;
    transition: all ease-in-out 150ms;
}

.img_window {
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.8);
    position: fixed;
    top: 0;
    left: 0;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.img_window img {
    max-height: 80vh;
    max-width: 100vw;
}