/**
 * Video Library Plugin - 前端用户界面样式
 * @package Video_Library
 */

/* ==========================================================================
   基础重置和变量
   ========================================================================== */

:root {
    --vl-primary-color: #2271b1;
    --vl-secondary-color: #135e96;
    --vl-success-color: #00a32a;
    --vl-warning-color: #dba617;
    --vl-error-color: #d63638;
    --vl-text-color: #1d2327;
    --vl-text-light: #646970;
    --vl-border-color: #c3c4c7;
    --vl-background: #ffffff;
    --vl-background-alt: #f6f7f7;
    --vl-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --vl-radius: 8px;
    --vl-transition: all 0.3s ease;
}

.video-library-container * {
    box-sizing: border-box;
}

/* ==========================================================================
   视频播放器容器
   ========================================================================== */

.video-library-player {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto 30px;
    background: var(--vl-background);
    border-radius: var(--vl-radius);
    box-shadow: var(--vl-shadow);
    overflow: hidden;
}

.video-player-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 宽高比 */
    height: 0;
    background: #000;
}

.video-player-wrapper iframe,
.video-player-wrapper video,
.video-player-wrapper mux-player {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Mux Player 容器样式 */
.mux-player-container {
    position: relative;
    width: 100%;
    background: #000;
    border-radius: var(--vl-radius);
    overflow: hidden;
}

.mux-player-container mux-player {
    width: 100%;
    height: auto;
    display: block;
}

.video-player-controls {
    padding: 15px 20px;
    background: var(--vl-background);
    border-top: 1px solid var(--vl-border-color);
}

.video-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--vl-text-color);
    margin: 0 0 8px 0;
    line-height: 1.4;
}

.video-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    font-size: 14px;
    color: var(--vl-text-light);
    margin-bottom: 10px;
}

.video-meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.video-meta-icon {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

.video-description {
    font-size: 14px;
    line-height: 1.6;
    color: var(--vl-text-color);
    margin-top: 15px;
}

/* ==========================================================================
   视频画廊
   ========================================================================== */

.video-library-gallery {
    margin: 30px 0;
}

.video-gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

.video-gallery-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--vl-text-color);
    margin: 0;
}

.video-gallery-filters {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.video-filter-select {
    padding: 8px 12px;
    border: 1px solid var(--vl-border-color);
    border-radius: 6px;
    background: var(--vl-background);
    color: var(--vl-text-color);
    font-size: 14px;
    cursor: pointer;
    transition: var(--vl-transition);
}

.video-filter-select:focus {
    outline: none;
    border-color: var(--vl-primary-color);
    box-shadow: 0 0 0 2px rgba(34, 113, 177, 0.1);
}

.video-search-input {
    padding: 8px 12px;
    border: 1px solid var(--vl-border-color);
    border-radius: 6px;
    background: var(--vl-background);
    color: var(--vl-text-color);
    font-size: 14px;
    width: 200px;
    transition: var(--vl-transition);
}

.video-search-input:focus {
    outline: none;
    border-color: var(--vl-primary-color);
    box-shadow: 0 0 0 2px rgba(34, 113, 177, 0.1);
}

.video-gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.video-gallery-item {
    background: var(--vl-background);
    border-radius: var(--vl-radius);
    box-shadow: var(--vl-shadow);
    overflow: hidden;
    transition: var(--vl-transition);
    cursor: pointer;
}

.video-gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.video-thumbnail-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 */
    background: #f0f0f0;
    overflow: hidden;
}

.video-thumbnail {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--vl-transition);
}

.video-gallery-item:hover .video-thumbnail {
    transform: scale(1.05);
}

.video-duration-overlay {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.video-play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--vl-transition);
    opacity: 0;
}

.video-gallery-item:hover .video-play-overlay {
    opacity: 1;
}

.video-play-icon {
    width: 24px;
    height: 24px;
    color: var(--vl-primary-color);
    margin-left: 3px; /* 视觉上居中播放图标 */
}

.video-item-content {
    padding: 15px;
}

.video-item-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--vl-text-color);
    margin: 0 0 8px 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-item-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--vl-text-light);
    margin-bottom: 10px;
}

.video-item-author {
    font-weight: 500;
}

.video-item-views {
    display: flex;
    align-items: center;
    gap: 4px;
}

.video-item-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
}

.video-tag {
    display: inline-block;
    padding: 3px 8px;
    background: var(--vl-background-alt);
    color: var(--vl-text-light);
    border-radius: 12px;
    font-size: 11px;
    text-decoration: none;
    transition: var(--vl-transition);
}

.video-tag:hover {
    background: var(--vl-primary-color);
    color: white;
    text-decoration: none;
}

/* ==========================================================================
   视频上传界面
   ========================================================================== */

.video-library-upload {
    max-width: 600px;
    margin: 30px auto;
    background: var(--vl-background);
    border-radius: var(--vl-radius);
    box-shadow: var(--vl-shadow);
    padding: 30px;
}

.upload-form-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--vl-text-color);
    margin: 0 0 25px 0;
    text-align: center;
}

.upload-dropzone {
    border: 2px dashed var(--vl-border-color);
    border-radius: var(--vl-radius);
    padding: 50px 20px;
    text-align: center;
    background: var(--vl-background-alt);
    transition: var(--vl-transition);
    margin-bottom: 25px;
    cursor: pointer;
}

.upload-dropzone:hover,
.upload-dropzone.dragover {
    border-color: var(--vl-primary-color);
    background: rgba(34, 113, 177, 0.05);
    transform: scale(1.02);
}

.upload-icon {
    width: 64px;
    height: 64px;
    color: var(--vl-border-color);
    margin: 0 auto 20px;
}

.upload-text {
    font-size: 18px;
    color: var(--vl-text-color);
    margin-bottom: 8px;
    font-weight: 500;
}

.upload-hint {
    font-size: 14px;
    color: var(--vl-text-light);
    margin-bottom: 20px;
}

.upload-button {
    background: var(--vl-primary-color);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--vl-transition);
}

.upload-button:hover {
    background: var(--vl-secondary-color);
    transform: translateY(-2px);
}

.upload-button:disabled {
    background: var(--vl-text-light);
    cursor: not-allowed;
    transform: none;
}

.upload-progress {
    margin-top: 20px;
    display: none;
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: #e1e1e1;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--vl-primary-color), var(--vl-secondary-color));
    border-radius: 6px;
    transition: width 0.3s ease;
    position: relative;
}

.progress-text {
    text-align: center;
    font-size: 14px;
    color: var(--vl-text-color);
}

.upload-form-fields {
    display: none;
    margin-top: 25px;
    padding-top: 25px;
    border-top: 1px solid var(--vl-border-color);
}

.form-field {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--vl-text-color);
    margin-bottom: 8px;
    font-size: 14px;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--vl-border-color);
    border-radius: 6px;
    background: var(--vl-background);
    color: var(--vl-text-color);
    font-size: 14px;
    transition: var(--vl-transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--vl-primary-color);
    box-shadow: 0 0 0 2px rgba(34, 113, 177, 0.1);
}

.form-textarea {
    min-height: 80px;
    resize: vertical;
}

/* 多选下拉菜单样式 */
.form-select[multiple] {
    height: auto;
    min-height: 120px;
    padding: 8px;
}

.form-select[multiple] option {
    padding: 6px 8px;
    margin: 2px 0;
    border-radius: 4px;
    cursor: pointer;
}

.form-select[multiple] option:hover {
    background-color: var(--vl-background-alt);
}

.form-select[multiple] option:checked {
    background-color: var(--vl-primary-color);
    color: white;
}

/* 表单说明文字样式 */
.form-text {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: var(--vl-text-light);
    font-style: italic;
}

.form-submit {
    background: var(--vl-success-color);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--vl-transition);
    width: 100%;
}

.form-submit:hover {
    background: #008a20;
    transform: translateY(-2px);
}

/* ==========================================================================
   状态消息
   ========================================================================== */

.video-library-message {
    padding: 15px 20px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 14px;
    line-height: 1.5;
}

.video-library-message.success {
    background: #d1e7dd;
    color: #0f5132;
    border: 1px solid #badbcc;
}

.video-library-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c2c7;
}

.video-library-message.warning {
    background: #fff3cd;
    color: #664d03;
    border: 1px solid #ffecb5;
}

.video-library-message.info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #b8daff;
}

/* ==========================================================================
   分页导航
   ========================================================================== */

.video-library-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.pagination-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 12px;
    border: 1px solid var(--vl-border-color);
    border-radius: 6px;
    background: var(--vl-background);
    color: var(--vl-text-color);
    text-decoration: none;
    font-size: 14px;
    transition: var(--vl-transition);
    min-width: 40px;
}

.pagination-link:hover {
    background: var(--vl-primary-color);
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
}

.pagination-link.current {
    background: var(--vl-primary-color);
    color: white;
    border-color: var(--vl-primary-color);
}

.pagination-link.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ==========================================================================
   加载状态
   ========================================================================== */

.video-library-loading {
    text-align: center;
    padding: 40px 20px;
    color: var(--vl-text-light);
}

.loading-spinner {
    display: inline-block;
    width: 32px;
    height: 32px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--vl-primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    font-size: 14px;
}

/* ==========================================================================
   模态框
   ========================================================================== */

.video-library-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 10000;
    animation: fadeIn 0.3s ease;
}

.video-library-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--vl-background);
    border-radius: var(--vl-radius);
    max-width: 90vw;
    max-height: 90vh;
    overflow: auto;
    position: relative;
    animation: slideIn 0.3s ease;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    cursor: pointer;
    font-size: 18px;
    z-index: 10001;
    transition: var(--vl-transition);
}

.modal-close:hover {
    background: rgba(0, 0, 0, 0.8);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { 
        opacity: 0; 
        transform: translateY(-50px) scale(0.9); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0) scale(1); 
    }
}

/* ==========================================================================
   响应式设计
   ========================================================================== */

@media (max-width: 768px) {
    .video-library-player {
        margin-bottom: 20px;
    }
    
    .video-player-controls {
        padding: 12px 15px;
    }
    
    .video-title {
        font-size: 16px;
    }
    
    .video-gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 15px;
    }
    
    .video-gallery-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .video-gallery-filters {
        justify-content: center;
    }
    
    .video-search-input {
        width: 100%;
        max-width: 300px;
    }
    
    .video-library-upload {
        margin: 20px;
        padding: 20px;
    }
    
    .upload-dropzone {
        padding: 30px 15px;
    }
    
    .upload-form-title {
        font-size: 20px;
    }
    
    .video-meta {
        flex-direction: column;
        gap: 8px;
    }
    
    .video-library-pagination {
        gap: 5px;
    }
    
    .pagination-link {
        padding: 6px 10px;
        font-size: 13px;
        min-width: 36px;
    }
}

@media (max-width: 480px) {
    .video-gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .video-item-content {
        padding: 12px;
    }
    
    .video-item-title {
        font-size: 14px;
    }
    
    .video-item-meta {
        font-size: 12px;
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
}

/* 前端表单新增字段样式 */

/* 缩略图上传容器 */
.thumbnail-upload-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 8px;
}

.thumbnail-preview {
    width: 200px;
    height: 120px;
    border: 2px dashed #ddd;
    border-radius: 8px;
    background: #f9f9f9;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
    position: relative;
}

.thumbnail-preview:hover {
    border-color: #0073aa;
    background: #f0f6fc;
}

.thumbnail-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 6px;
}

.thumbnail-placeholder {
    text-align: center;
    color: #666;
    padding: 20px;
}

.thumbnail-placeholder .dashicons {
    font-size: 32px;
    width: 32px;
    height: 32px;
    margin-bottom: 8px;
    color: #ccc;
}

.thumbnail-placeholder p {
    margin: 0;
    font-size: 13px;
    color: #666;
}

#select-thumbnail-btn {
    align-self: flex-start;
    padding: 8px 16px;
    background: #0073aa;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s ease;
}

#select-thumbnail-btn:hover {
    background: #005a87;
}

/* 设备信息字段样式优化 */
.form-field input[placeholder],
.form-field textarea[placeholder] {
    font-style: italic;
    color: #999;
}

.form-field input:focus[placeholder],
.form-field textarea:focus[placeholder] {
    color: #666;
}

/* Download Access 下拉框样式 */
.form-field select#download_access {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 8px center;
    background-repeat: no-repeat;
    background-size: 16px;
    padding-right: 40px;
    appearance: none;
}

/* 表单验证样式 */
.form-field input:invalid,
.form-field textarea:invalid,
.form-field select:invalid {
    border-color: #dc3232;
    box-shadow: 0 0 2px rgba(220, 50, 50, 0.3);
}

.form-field input:valid,
.form-field textarea:valid,
.form-field select:valid {
    border-color: #46b450;
}

/* 加载状态 */
.thumbnail-upload-container.uploading .thumbnail-preview {
    opacity: 0.6;
    pointer-events: none;
}

.thumbnail-upload-container.uploading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid #0073aa;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .thumbnail-preview {
        width: 100%;
        max-width: 300px;
        height: 180px;
    }
    
    #select-thumbnail-btn {
        width: 100%;
        text-align: center;
    }
    
    .form-field input,
    .form-field textarea,
    .form-field select {
        font-size: 16px; /* 防止iOS设备自动缩放 */
    }
}

@media (max-width: 480px) {
    .thumbnail-preview {
        height: 150px;
    }
    
    .thumbnail-placeholder {
        padding: 15px;
    }
    
    .thumbnail-placeholder .dashicons {
        font-size: 24px;
        width: 24px;
        height: 24px;
    }
}