/**
 * 以图搜图功能样式
 *
 * 使用父主题 CSS 变量，支持深色模式
 *
 * @package    Hui
 * @subpackage Image_Search
 * @since      1.5.0
 */

/* ============================================================================
 * 搜索按钮样式
 * ============================================================================ */

.hui-image-search-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 1rem;
    background: var(--color-bg-container);
    border: 1px solid var(--color-border);
    border-radius: var(--xun-radius, 8px);
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s var(--ease-smooth);
    white-space: nowrap;
}

.hui-image-search-btn:hover {
    background: var(--color-fill-tertiary);
    border-color: var(--xun-secondary, var(--color-secondary));
    color: var(--xun-secondary, var(--color-secondary));
}

.hui-image-search-btn-icon {
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
}

.hui-image-search-btn-text {
    display: none;
}

@media (min-width: 768px) {
    .hui-image-search-btn-text {
        display: inline;
    }
}

/* ============================================================================
 * 弹窗样式
 * ============================================================================ */

.hui-image-search-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.hui-image-search-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg-mask);
    backdrop-filter: blur(4px);
}

.hui-image-search-modal-container {
    position: relative;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    background: var(--color-bg-container);
    border-radius: var(--xun-radius-lg, 12px);
    box-shadow: var(--shadow-modal);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: hui-image-search-modal-in 0.2s var(--ease-smooth);
}

@keyframes hui-image-search-modal-in {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.hui-image-search-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border-secondary);
}

.hui-image-search-modal-title {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
}

.hui-image-search-modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-md, 0.5rem);
    color: var(--color-text-tertiary);
    cursor: pointer;
    transition: all 0.2s var(--ease-smooth);
}

.hui-image-search-modal-close:hover {
    background: var(--color-fill-tertiary);
    color: var(--color-text);
}

.hui-image-search-modal-close svg {
    width: 1.25rem;
    height: 1.25rem;
}

.hui-image-search-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
}

/* ============================================================================
 * 上传区域样式
 * ============================================================================ */

.hui-image-search-upload-area {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.hui-image-search-upload-dropzone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 1.5rem;
    border: 2px dashed var(--color-border);
    border-radius: var(--xun-radius, 8px);
    background: var(--color-fill-quaternary);
    cursor: pointer;
    transition: all 0.2s var(--ease-smooth);
}

.hui-image-search-upload-dropzone:hover,
.hui-image-search-upload-dropzone.is-dragover {
    border-color: var(--xun-secondary, var(--color-secondary));
    background: oklch(from var(--xun-secondary, var(--color-secondary)) l c h / 0.05);
}

.hui-image-search-upload-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    margin-bottom: 1rem;
    background: var(--color-fill-tertiary);
    border-radius: 50%;
    color: var(--color-text-tertiary);
    transition: all 0.2s var(--ease-smooth);
}

.hui-image-search-upload-dropzone:hover .hui-image-search-upload-icon,
.hui-image-search-upload-dropzone.is-dragover .hui-image-search-upload-icon {
    background: oklch(from var(--xun-secondary, var(--color-secondary)) l c h / 0.1);
    color: var(--xun-secondary, var(--color-secondary));
}

.hui-image-search-upload-icon svg {
    width: 1.75rem;
    height: 1.75rem;
}

.hui-image-search-upload-hint {
    margin: 0 0 0.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
}

.hui-image-search-upload-formats {
    margin: 0;
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
}

.hui-image-search-upload-size {
    margin-left: 0.5rem;
}

.hui-image-search-upload-size::before {
    content: '·';
    margin-right: 0.5rem;
}

/* 图片预览 */
.hui-image-search-preview {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: var(--color-fill-quaternary);
    border-radius: var(--xun-radius, 8px);
}

.hui-image-search-preview-img {
    max-width: 100%;
    max-height: 200px;
    border-radius: var(--radius-sm, 0.375rem);
    object-fit: contain;
}

.hui-image-search-preview-remove {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    padding: 0;
    background: var(--color-bg-container);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-text-tertiary);
    cursor: pointer;
    transition: all 0.2s var(--ease-smooth);
}

.hui-image-search-preview-remove:hover {
    background: var(--color-error-bg);
    border-color: var(--color-error);
    color: var(--color-error);
}

.hui-image-search-preview-remove svg {
    width: 1rem;
    height: 1rem;
}

/* 搜索按钮 */
.hui-image-search-submit-btn {
    width: 100%;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
}

/* ============================================================================
 * 加载状态样式
 * ============================================================================ */

.hui-image-search-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.5rem;
}

.hui-image-search-loading-spinner {
    width: 2.5rem;
    height: 2.5rem;
    border: 3px solid var(--color-fill-secondary);
    border-top-color: var(--xun-secondary, var(--color-secondary));
    border-radius: 50%;
    animation: hui-image-search-spin 0.8s linear infinite;
}

@keyframes hui-image-search-spin {
    to {
        transform: rotate(360deg);
    }
}

.hui-image-search-loading-text {
    margin: 1rem 0 0;
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

/* ============================================================================
 * 搜索结果样式
 * ============================================================================ */

.hui-image-search-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.hui-image-search-results-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

.hui-image-search-reupload-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md, 0.5rem);
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all 0.2s var(--ease-smooth);
}

.hui-image-search-reupload-btn:hover {
    background: var(--color-fill-tertiary);
    border-color: var(--xun-secondary, var(--color-secondary));
    color: var(--xun-secondary, var(--color-secondary));
}

.hui-image-search-reupload-btn svg {
    width: 0.875rem;
    height: 0.875rem;
}

/* 结果列表 - 文章卡片布局 */
.hui-image-search-results-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* 结果项 - 文章卡片样式 */
.hui-image-search-result-item {
    display: flex;
    gap: 0.875rem;
    padding: 0.75rem;
    background: var(--color-bg-container);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--xun-radius, 8px);
    text-decoration: none;
    transition: all 0.2s var(--ease-smooth);
}

.hui-image-search-result-item:hover {
    border-color: var(--xun-secondary, var(--color-secondary));
    box-shadow: var(--shadow-sm);
    background: var(--color-fill-quaternary);
}

.hui-image-search-result-thumb {
    position: relative;
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: var(--radius-sm, 0.375rem);
    overflow: hidden;
    background: var(--color-fill-quaternary);
}

.hui-image-search-result-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s var(--ease-smooth);
}

.hui-image-search-result-item:hover .hui-image-search-result-thumb img {
    transform: scale(1.05);
}

.hui-image-search-result-similarity {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    padding: 0.125rem 0.375rem;
    background: oklch(from var(--xun-secondary, var(--color-secondary)) l c h / 0.9);
    border-radius: var(--radius-sm, 0.375rem);
    color: #fff;
    font-size: 0.6875rem;
    font-weight: 600;
}

.hui-image-search-result-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* 结果项头部（类型标签 + 标题） */
.hui-image-search-result-header {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.375rem;
}

/* 类型标签基础样式 */
.hui-image-search-result-type {
    flex-shrink: 0;
    padding: 0.125rem 0.375rem;
    font-size: 0.6875rem;
    font-weight: 500;
    border-radius: var(--radius-sm, 0.375rem);
    line-height: 1.4;
    white-space: nowrap;
}

/* 文章类型标签 - 蓝色 */
.hui-image-search-result-type--article {
    background: var(--color-info-bg);
    color: var(--color-info);
}

/* 帖子类型标签 - 绿色 */
.hui-image-search-result-type--post {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.hui-image-search-result-title {
    margin: 0;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-height: 1.4;
}

.hui-image-search-result-item:hover .hui-image-search-result-title {
    color: var(--xun-secondary, var(--color-secondary));
}

.hui-image-search-result-excerpt {
    margin: 0 0 0.375rem;
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-height: 1.5;
}

.hui-image-search-result-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--color-text-quaternary);
}

.hui-image-search-result-category {
    padding: 0.125rem 0.375rem;
    background: var(--color-fill-tertiary);
    border-radius: var(--radius-sm, 0.375rem);
    color: var(--color-text-secondary);
}

/* 作者名称 */
.hui-image-search-result-author {
    color: var(--xun-secondary, var(--color-secondary));
    font-weight: 500;
}

.hui-image-search-result-date {
    color: var(--color-text-tertiary);
}

/* 空结果 */
.hui-image-search-results-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.5rem;
    color: var(--color-text-tertiary);
}

.hui-image-search-results-empty svg {
    width: 3rem;
    height: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.hui-image-search-results-empty p {
    margin: 0;
    font-size: 0.9375rem;
}

/* 加载更多按钮 */
.hui-image-search-load-more-btn {
    width: 100%;
    margin-top: 1rem;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
}

/* ============================================================================
 * 深色模式适配
 * ============================================================================ */

@media (prefers-color-scheme: dark) {
    :root:not(.light) .hui-image-search-modal-container {
        border: 1px solid var(--color-border);
    }

    :root:not(.light) .hui-image-search-upload-dropzone:hover,
    :root:not(.light) .hui-image-search-upload-dropzone.is-dragover {
        background: oklch(from var(--xun-secondary, var(--color-secondary)) l c h / 0.08);
    }
}

.dark .hui-image-search-modal-container {
    border: 1px solid var(--color-border);
}

.dark .hui-image-search-upload-dropzone:hover,
.dark .hui-image-search-upload-dropzone.is-dragover {
    background: oklch(from var(--xun-secondary, var(--color-secondary)) l c h / 0.08);
}

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

@media (max-width: 768px) {
    .hui-image-search-modal {
        padding: 1rem;
    }

    .hui-image-search-modal-container {
        max-width: 100%;
        max-height: calc(100% - 2rem);
        border-radius: var(--xun-radius-lg, 12px);
    }

    .hui-image-search-modal-header {
        padding: 1rem;
    }

    .hui-image-search-modal-body {
        padding: 1rem;
    }

    .hui-image-search-upload-dropzone {
        padding: 2rem 1rem;
    }

    .hui-image-search-results-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
}

@media (max-width: 480px) {
    .hui-image-search-modal {
        padding: 0.75rem;
    }

    .hui-image-search-modal-container {
        max-height: calc(100% - 1.5rem);
        border-radius: var(--xun-radius, 8px);
    }

    .hui-image-search-modal-header {
        padding: 0.875rem;
    }

    .hui-image-search-modal-body {
        padding: 0.875rem;
    }

    .hui-image-search-upload-dropzone {
        padding: 1.5rem 1rem;
    }
}