.cover-upload {
    border: 1px dashed #ced4da;
    border-radius: .25rem;
    text-align: center;
    cursor: pointer;
    width: 100%;
    padding-top: 150%;
    position: relative;
    overflow: hidden;
}

    .cover-upload img {
        max-height: none;
        object-fit: cover;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 100%;
        height: 100%;
    }


.remove-tag {
    margin-left: 5px;
    cursor: pointer;
}

/*书架*/

.book-list {
    display: flex;
    flex-wrap: wrap;
    padding: 20px;
}

.book-card {
    /* 桌面端保持原来宽度 */
    width: 200px;
    margin: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease-in-out;
    overflow: hidden;
}

    .book-card:hover {
        /* 桌面端保持hover效果 */
        transform: translateY(-5px);
    }

.book-card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.book-card-body {
    padding: 10px;
    background-color: white;
    position: relative;
}

.book-title {
    font-size: 16px;
    font-weight: bold;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.book-type {
    margin-top: 5px;
}

    .book-type .badge {
        margin-right: 3px;
    }

.book-tag {
    font-size: 12px;
    color: #666;
    margin-top: 5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

    .book-tag .badge {
        margin-right: 3px;
        border-radius: 5px;
    }

.book-type .badge {
    margin-right: 3px;
    border-radius: 5px;
}

.book-remark {
    font-size: 14px;
    color: #333;
    margin-top: 5px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.book-word-count {
    font-size: 12px;
    color: #666;
    margin-top: 5px;
}

.pagination {
    justify-content: center;
    margin-top: 20px;
}

.header-search {
    position: relative;
    width: 250px;
    margin-left: 15px;
}

    .header-search input {
        padding-left: 30px;
    }

    .header-search i {
        position: absolute;
        left: 10px;
        top: 50%;
        transform: translateY(-50%);
        color: #999;
    }

.burger-menu {
    display: none;
    cursor: pointer;
    padding: 5px;
    border-radius: 5px;
}

.book-card-buttons {
    /* 按钮组默认显示 */
    margin-top: 10px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.book-card-button {
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 3px;
    padding: 2px 5px;
    font-size: 12px;
    color: #333;
    cursor: pointer;
    margin: 2px;
    white-space: nowrap;
}

    .book-card-button i {
        margin-right: 3px;
    }

    .book-card-button.btn-continue {
        background-color: #28a745;
        border-color: #28a745;
        color: white;
    }

    .book-card-button.btn-publish {
        background-color: #17a2b8;
        border-color: #17a2b8;
        color: white;
    }

    .book-card-button.btn-unpublish {
        background-color: #ffc107;
        border-color: #ffc107;
        color: white;
    }

/* Media query for smaller screens */
@media (max-width: 768px) {
    .header-search {
        width: 180px;
        margin-left: 10px;
    }

    /* 移动端两本书占一行 */
    .book-card {
        width: calc(50% - 20px);
    }

        .book-card:hover {
            /* 移动端取消hover效果 */
            transform: none;
        }

    .burger-menu {
        display: block;
    }

    .header-search input {
        padding-left: 25px;
    }
}

/* Media query for smaller screens */
@media (max-width: 500px) {
    .header-left {
        flex-wrap: wrap;
        justify-content: space-between;
    }

    .header-search {
        order: 3;
        width: 100%;
        margin: 10px 0 0 0;
    }
    /* 更小屏幕上，还是一本书一行 */
    .book-card {
        width: calc(100% - 20px);
    }
}

.page-item.disabled .page-link {
    color: #6c757d;
    pointer-events: none;
    cursor: not-allowed;
    background-color: #fff;
    border-color: #dee2e6;
}

.simple-confirm-delete {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1500;
}

.simple-confirm-delete-content {
    background: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.simple-confirm-delete-content p {
    margin-bottom: 20px;
}

.simple-confirm-delete-content .btn {
    margin: 5px;
}