:root {
    --image-height: auto;
    --border-thickness: 1px;
    --subtle-color: black;
}

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

header, footer, .grid {
    max-width: 1200px;
    margin: 0 auto;
}

nav {
    display: flex;
    background-color: darkblue;
    padding: 1rem;
    justify-content: space-evenly;
    align-items: center;
}

nav a {
    display: block;
    padding: 0.5rem;
    color: white;
    font-size: 1.2rem;
    font-weight: 700;
    text-decoration: none;
}

main {
    max-width: 50rem;
    margin: 1rem 0;
    grid-column: 2/3;
}

h1 {
    color: darkblue;
    padding: 0.5rem;
    border-bottom: 1px solid #222;
}

main img {
    width: 19rem;
    height: var(--image-height);
    border: var(--border-thickness) solid var(--subtle-color);
    padding: 2px;
    box-shadow: 0 0 30px gray;
    float: right;
    margin: 1rem 0 1rem 1rem;
}

ul {
    list-style: none;
}

p {
    margin: 1rem;
    padding: 0;
}

aside {
    max-width: 30rem;
    position: relative;
    grid-row: 1/2;
    grid-column: 1/2;
}

aside img {
    width: 100%;
    height: var(--image-height);
}

aside h2 {
    position: absolute;
    top: 2rem;
    left: 13.5rem;
}

footer {
    margin-top: 2rem;
    margin-bottom: 2rem;
    padding: 0.1rem 0;
    border-top: var(--border-thickness) dotted var(--subtle-color);
    text-align: center;
    background-color: #3e3e3e;
    color: white;
}

/* Class Selectors */
.box {
    border: 1px solid rgb(0 0 0 / 0.1);
    padding: 1rem;
    background-color: #eee;
    color: #000;
}

.indent {
    padding-left: 2rem;
}

.grid {
    display: grid;
    align-items: center;
    gap: 2rem;
}