/* PDF Download Manager - Frontend Styles */

.pdf-dlm-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.pdf-dlm-filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.pdf-dlm-search form {
    display: flex;
    gap: 10px;
}

.pdf-dlm-search-input {
    padding: 10px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 4px;
    font-size: 14px;
    min-width: 250px;
    transition: border-color 0.3s;
}

.pdf-dlm-search-input1:focus {
    outline: none;
    border-color: var(--primary-color, #DA251C);
}

.pdf-dlm-search-btn1 {
    padding: 10px 20px;
    background-color: var(--primary-color, #DA251C) !important;
    color: var(--text-on-red, #fff);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s;
}

.pdf-dlm-search-btn1:hover {
    background-color: var(--hover-color, #DA251CC9) !important;
}

.pdf-dlm-categories select {
    padding: 10px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 4px;
    font-size: 14px;
    min-width: 200px;
}

/* 会话状态 */
.pdf-dlm-session-status {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background-color: #f0f8f0;
    border: 1px solid #4caf50;
    border-radius: 4px;
    color: #2e7d32;
    font-size: 14px;
}

.pdf-dlm-session-text {
    font-weight: 500;
}

.pdf-dlm-clear-session {
    background: none;
    border: 1px solid #4caf50;
    color: #4caf50;
    padding: 4px 8px;
    border-radius: 3px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s;
}

.pdf-dlm-clear-session:hover {
    background-color: #4caf50;
    color: white;
}

/* 网格布局 */
.pdf-dlm-grid {
    display: grid;
    grid-template-columns: repeat(var(--columns, 1), 1fr);
    gap: 25px;
    margin-bottom: 40px;
}

.pdf-dlm-item {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.pdf-dlm-item:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transform: translateY(-5px);
}

.pdf-dlm-icon {
    margin-bottom: 15px;
}

.pdf-dlm-title {
    font-size: 18px;
    margin: 0 0 10px;
    color: var(--text-color, #333);
    font-weight: 600;
}

.pdf-dlm-meta {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 14px;
    color: #666;
}

.pdf-dlm-download-btn {
    padding: 12px 30px;
    background-color: var(--primary-color, #DA251C);
    color: var(--text-on-red, #fff);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: background-color 0.3s;
    width: 100%;
    max-width: 200px;
}

.pdf-dlm-download-btn:hover {
    background-color: var(--hover-color, #DA251CC9);
}

.pdf-dlm-no-files {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: #999;
    font-size: 18px;
}

/* 分页 */
.pdf-dlm-pagination {
    text-align: center;
    margin-top: 40px;
}

.pdf-dlm-pagination ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: inline-flex;
    gap: 5px;
}

.pdf-dlm-pagination li {
    display: inline;
}

.pdf-dlm-pagination a,
.pdf-dlm-pagination span {
    padding: 8px 12px;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    text-decoration: none;
    color: var(--text-color, #333);
    transition: all 0.3s;
}

.pdf-dlm-pagination a:hover,
.pdf-dlm-pagination .current {
    background-color: var(--primary-color, #DA251C);
    color: var(--text-on-red, #fff);
    border-color: var(--primary-color, #DA251C);
}

/* 模态框 */
.pdf-dlm-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 99999;
}

.pdf-dlm-modal {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 100000;
    background: #fff;
    border-radius: 8px;
    max-width: 450px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.pdf-dlm-modal-header {
    background-color: var(--primary-color, #DA251C);
    color: var(--text-on-red, #fff);
    padding: 5px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pdf-dlm-modal-header h3 {
    margin: 0;
    font-size: 20px;
}

.pdf-dlm-modal-close {
    background: none;
    border: none;
    color: var(--text-on-red, #fff);
    font-size: 28px;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pdf-dlm-modal-body {
    padding: 30px;
}

.pdf-dlm-modal-body p {
    margin: 0 0 15px;
    color: var(--text-color, #333);
}

.pdf-dlm-email-input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 4px;
    font-size: 16px;
    box-sizing: border-box;
    transition: border-color 0.3s;
}

.pdf-dlm-email-input:focus {
    outline: none;
    border-color: var(--primary-color, #DA251C);
}

.pdf-dlm-error {
    margin-top: 10px;
    padding: 10px;
    background-color: #fee;
    border-left: 4px solid var(--primary-color, #DA251C);
    color: #c00;
    font-size: 14px;
    border-radius: 4px;
}

.pdf-dlm-modal-footer {
    padding: 20px 30px;
    border-top: 1px solid #e0e0e0;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.pdf-dlm-modal-confirm {
    background-color: var(--primary-color, #DA251C) !important;
    border-color: var(--primary-color, #DA251C) !important;
}

.pdf-dlm-modal-confirm:hover {
    background-color: var(--hover-color, #DA251CC9) !important;
    border-color: var(--hover-color, #DA251CC9) !important;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .pdf-dlm-grid {
        grid-template-columns: 1fr !important;
    }
    
    .pdf-dlm-filter-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .pdf-dlm-search form {
        justify-content: stretch;
    }
    
    .pdf-dlm-search-input {
        flex: 1;
    }
}