.logo {
    width: 20%;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.logo svg {
    width: 4rem;
    height: 4rem;
}

.header {
    width: 100%;
    display: flex;
    border-bottom: 1px solid #F5F5F5;
    align-items: center;
}

.page-title {
    width: 80%;
    font-weight: 500;
    padding: 1rem 2rem;
}

.library {
    display: flex;
    width: 100%;
    gap: 2rem;
    margin-top: 2rem;
}

.sidebar {
    margin-top: 4rem;
    width: 20%;
    background: #F5F5F5;
    height: fit-content;
    padding: 1rem;
    margin-bottom: 2rem;
}

#book-list {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    gap: 2rem;
}

.book {
    width: calc(20% - (2rem * 4)/5);
    margin-bottom: 2rem;
}

.book:hover img {
    background: #E6E6E6;
}

.book img {
    width: 100%;
    height: 300px;
    object-fit: contain;
    padding: 1rem;
    background: #F5F5F5;
    transition: background 0.3s ease;
}

.book-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-top: 0.5rem;
}

.book-info .book-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.book-info .book-author {
    font-size: 0.75rem;
}

.book-info .book-published-date {
    font-size: 0.75rem;
}

/* Search Container */
.search-container {
    position: relative;
    display: flex;
    justify-content: flex-end;
    width: 100%;
}

/* Search Icon */
.search-icon {
    cursor: pointer;
    padding: 10px;
}

.search-icon svg {
    fill: black;
    width: 1.2rem;
    height: 1.2rem;
    margin-top: 0.2rem;
}

/* Search Form */
.search-form {
    width: calc(80% - 2rem + 5px);
    margin-top: 2rem;
    transition: all 0.3s ease;
    padding: 5px;
    display: flex;
    background: #F5F5F5;
    align-items: center;
}

/* Expanded Search Form */ 
.search-form.active {
    opacity: 1;
    width: 100%;
}

/* Search Input Field */
.search-form input[type="text"] {
    width: 80%;
    background: #F5F5F5;
    padding: 10px;
    border: none;
    box-sizing: border-box;
}

.search-form input[type="text"]:focus {
    outline: #FFAA00;
}

/* Optional: Hide the search icon when the form is active */
.search-container.active .search-icon {
    display: none;
}

.book-results {
    width: 80%;
    display: flex;
    flex-direction: column;
}

.results-bar {
    height: 2rem;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 500;
    margin-bottom: 2rem;
}

.subject-dropdown {
    width: 100%;
    display: none;
}

.page-title br {
    display: none;
}

#sorting-form label {
    margin-left: 1rem;
    margin-right: 0.2rem;
}

select {
    padding: 0.5rem;
    border: 1px solid #F5F5F5;
    border-radius: 5px;
    background: #F5F5F5;
    cursor: pointer;
}

#subject-list {
    list-style-type: none;
    padding: 0.5rem 0;
}

#see-more-subjects {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    color: #FFAA00;
}

@media screen and (max-width: 768px) {
    .library {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        margin-top: 1rem;
        margin-bottom: 1rem;
    }

    .search-form {
        width: 100%;
        margin-right: 0;
    }

    .search-form input[type="text"] {
        width: 70%;
    }
    .book-results {
        width: 100%;
    }
    .book {
        width: calc(50% - 1rem);
    }
    .subject-dropdown {
        margin-top: 1rem;
        display: block;
    }
    #subject-list {
        display: none;
    }
    #see-more-subjects {
        display: none;
    }
    .page-title br {
        display: inline-block;
    }
}


/* 
 * Book single page
 */
 .book-single {
    display: flex;
    width: 100%;
    gap: 2rem;
    margin-top: 2rem;
 }

 .book-single-info {
    width: 80%;
    margin-left: 10px;
 }

 .book-single-cover {
    width: 20%;
 }

 .book-single-title {
    margin-bottom: 2rem;
 }

 .book-single-availability {

 }

 .book-single-description {
    margin-top: 2rem;
    margin-bottom: 2rem;
 }

 .login-link {
    color: #FFAA00;
    text-decoration: none;
    font-weight: 500;
 }

 .borrow-form input[type="submit"], .return-form input[type="submit"] {
    padding: 1rem 2rem;
    background: #FFAA00;
    color: black;
    border: none;
    font-weight: bold;
    cursor: pointer;
 }

 .borrow-form input[type="submit"]:hover, .return-form input[type="submit"]:hover {
    background: #F5F5F5;
 }