body {
    max-width: 60em;
}

.category-heading {
    font-size: x-large;
    text-align: center;
    border: 2px grey solid;
    padding: 0.5rem;
}

.book-container {
    display: grid;
    column-gap: 1.5rem;
    grid-template-rows: auto 1fr;
    grid-template-columns: 12rem auto;
    grid-template-areas: "thumbnail title" "thumbnail main";
}

@media screen and (max-width: 600px) {
    .book-container {
        grid-template-columns: 35% auto;
        grid-template-areas: "thumbnail title" "main main";
    }
}

.book-container-thumbnail {
    grid-area: thumbnail;
    display: flex;
    flex-direction: row;
    justify-content: center;
    margin: 0;
}

.book-container-thumbnail img {
    margin: 0;
}

.book-container-title {
    grid-area: title;
}

.book-container-title h3 {
    font-size: x-large;
    line-height: 1.4;
    margin: 0;
}

.book-container-title h4 {
    font-size: large;
    line-height: 1.2;
    margin-top: 0.5rem;
    margin-bottom: 0;
}

.book-container-main {
    grid-area: main;
    display: flex;
    flex-direction: column;
    row-gap: 1rem;
    margin-top: 1rem;
}

.book-container-main .tag {
    display: inline-flex;
    flex-direction: row;
    font-size: medium;
    margin: 0.2rem 0;
}

.book-container-main .tag .tag-body {
    padding: 0 0.5rem;
    background-color: #f0f0f0;
}

.book-container-main .tag-general {
    border-left: 0.3rem dodgerblue solid;
}

.book-container-main .tag .tag-leader {
    color: white;
}

.book-container-main .tag-interest .tag-leader {
    padding: 0 0.5rem;
    background-color: blueviolet;
}

.book-container-main .tag-help .tag-leader {
    padding: 0 0.5rem;
    background-color: lightseagreen;
}

.books-column {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}