body {
    background-color: #1f1b23;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 0 12%;
}

picture img {
    height: 70px;
    width: auto;
    padding: 5px;
    margin: 5px;
}

nav ul {
    display: flex;
    justify-content: center;
    padding: 0px;
    gap: 30px;
}

nav ul li {
    list-style: none;
}

nav:last-child button{
    color: #BBA8BD;
    background-color: #1f1b23;
    border: none;
    font-size: 15px;
    font-weight: bold;
}

nav:last-child button:hover {
    box-shadow: 0 0 10px rgba(122, 98, 132, 0.7);
    transform: scale(1.15);
    transition: all 0.3s ease-in-out;
}

main {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex: 1;
    padding: 0 12%;
    min-height: 100vh;
}

main section {
    display: flex;
    flex-direction: column;
    border-radius: 12px;
    gap: 10px;
    justify-content: space-between;
    background-color: #7A6284;
    min-width: 50vh;
    margin: 4% 0 1% 0;
    box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.2);
}

main:last-of-type a {
    text-decoration: none;
    color: inherit;
}

a:hover, a:focus {
    outline: none;
}

.tittle-section {
    padding-bottom: 12px;
    margin: 12px;
}

.content-book {
    display: flex;
    flex-wrap: wrap;
    margin: 10px;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.cover-book {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-radius: 8px;
    align-items: flex-start;
    background-color: aliceblue;
    cursor: pointer;
    padding: 0;
    margin: 5px;
    width: 20vw;
    height: calc((20vw * 3) / 2);
    box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.2);
}

.cover-book img {
    object-fit: cover;
}

footer {
    text-align: center;
    width: 100%;
    border-top: 3px solid var(--purple-3);
    color: var(--purple-5);
}

:root {
    --purple-1: #0C080D;
    --purple-2: #1F1B23;
    --purple-3: #382B3F;
    --purple-4: #52425C;
    --purple-5: #7A6284;
    --EerieBlack: rgb(26,18,35);
    --Regalia: rgb(81, 54, 123);
    --DeepKoamaru: rgb(60, 40, 107);
    --Ube: rgb(134, 116, 201);
    --Lilac: rgb(190, 169, 197);
}