html {
    scroll-behavior: smooth;
}

body,
nav ul {
    margin: 0;
}

.banner,
.navigation-hamburger,
nav {
    background-color: #1c0e09;
}

nav ul,
main,
footer section,
footer div {
    max-width: 800px;
    margin: 0 auto;
}

.banner-content span,
.navigation-hamburger {
    display: block;
}

.banner-content,
#navigation-hamburger:checked ~ nav ul,
footer ul,
.categories,
.date {
    display: flex;
}

.banner-content a,
nav ul li a,
footer a,
.link,
.cta,
.post {
    text-decoration: none;
}

.active,
.banner-content a:hover,
nav ul li a:hover,
footer a:hover,
.link:hover,
.cta:hover,
.post:hover > h2,
.post:hover > h3 {
    text-decoration: underline;
}

.banner-content a,
nav ul li a,
.cta {
    color: #fff;
}

footer a,
.post {
    color: #000;
}

main,
button,
footer {
    font-family: Calibri, Candara, Segoe, Segoe UI, Arial, sans-serif;
}

nav ul,
h1,
h2,
h3 {
    font-family: Palatino, Palatino Linotype, Book Antiqua, Georgia, serif;
    font-weight: normal;
}

nav ul,
footer ul {
    flex-direction: column;
    list-style-type: none;
    padding: 0;
}

#navigation-hamburger,
nav ul,
.form-error {
    display: none;
}

.navigation-hamburger,
nav ul,
footer div {
    text-align: center;
}

.italic,
.link {
    font-style: italic;
}

.banner-content,
.categories,
.date {
    align-items: center;
}

nav ul,
footer ul,
.categories,
.date {
    gap: 10px;
}

.categories,
.date {
    margin-bottom: 16px;
}

.navigation-hamburger img,
.categories img,
.date img {
    width: 25px;
}

main,
footer {
    padding: 10px 30px 20px;
}

footer h2,
h3 {
    font-size: 1.2rem;
    margin: 20px 0;
}

body {
    min-height: 100vh;
    display: grid;
    grid-template-rows: auto 1fr auto;
}

h1 {
    font-size: 2rem;
}

.banner {
    background-image: url("../images/row-of-books.jpg");
    background-position: center;
    height: 200px;
    font-family: Goudy Old Style, Garamond, Big Caslon, Times New Roman, serif;
}

.banner-content {
    justify-content: center;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.75);
    font-size: 3rem;
}

.banner-content span {
    font-size: 1rem;
    margin-bottom: -10px;
}

.navigation-hamburger {
    padding: 10px 0;
}

nav {
    padding: 0 10px;
    margin-bottom: 10px;
}

nav ul {
    padding-bottom: 10px;
}

nav ul li a {
    display: inline-block;
    padding: 10px 30px;
}

footer {
    border-top: 1px solid #000;
    margin-top: 80px;
}

footer div {
    margin-top: 30px;
}

.link {
    color: #0a5485;
}

.form-error {
    color: #f00;
}

.cta {
    background-color: #0c6452;
    border: none;
    padding: 10px 20px;
}

.cta:hover {
    cursor: pointer;
}

.post {
    border: 1px solid #000;
    padding: 20px;
}

.bold {
    font-weight: bold;
}

.loading {
    border: 16px solid #1c0e09;
    border-top: 16px solid #0d6e5a;
    border-radius: 100%;
    height: 100px;
    width: 100px;
    animation: spin 1.5s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}