body {
    font-size: 1em;
    line-height: 1.47em;
    color: #424242;
}

.return-nav a {
    line-height: 0;
}

button {
    font-size: 1.42em;
    background-color: transparent;
    border: none;
    cursor: pointer;
    font-family: inherit;
    padding: 0;
    font-weight: 400;
    font-family: sans-serif;
    color: green;
    text-decoration: underline;
    text-underline-offset: 0.18rem;
    line-height: 1.32em;
    letter-spacing: .0323em;
}

button::before {
    content: "↽ ";
}

.return-nav {
    margin-bottom: 1.14em;
}

.project-header h1 {
    margin: 0;
}

.project-year {
    margin: 0 0 1.32em 0;
}

.hidden-link {
    text-decoration: none;
}

.hidden-link:hover {
    color: blue;
    text-decoration: underline;
}

.project-gallery {
    display: flex;
    gap: 0.4em;
    flex-wrap: wrap;
}

img {
    height: 60px;
    width: auto;
    padding: 0.12em;
    cursor: pointer;
}

a {
    color: #424242;
}

em{
    font-family: monospace;
    letter-spacing: .02em;
}

@media (max-width: 480px) {
    .project-gallery {
        flex-direction: row;
        justify-content: flex-start;
    }
    
    img {
        height: auto;
        width: calc(33.333% - 0.27em);
        max-width: 120px;
    }  
}

@media (hover: hover) and (pointer: fine) {
    button:hover {
        color: blue;
    }
}