/* Data Operations Component Styles */
.data-operations {
    display: inline-flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--acme-toolbar-gap, 8px);
    min-width: 0;
}

.data-operations .btn-group {
    margin-right: 0;
}

.data-operations .btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: var(--acme-control-height, 34px);
    min-height: var(--acme-control-height, 34px);
    padding: 0.25rem 0.5rem;
    line-height: 1.5;
    border-radius: 0.2rem;
}

/* Dropdown 入口和图标按钮共用同一条操作条时，保持控件高度一致。 */
.data-operations > .btn,
.data-operations > .btn-group > .btn {
    min-height: var(--acme-control-height, 34px);
}

.data-operations .btn-icon i {
    font-size: 0.875rem;
}

.data-operations :where(button, a, input, select):focus-visible,
.custom-file-upload input[type="file"]:focus-visible + .file-upload-btn {
    outline: var(--acme-focus-outline, 2px solid #41b584);
    outline-offset: 2px;
    box-shadow: var(--acme-focus-ring, 0 0 0 3px rgba(65, 181, 132, 0.22));
}

/* Import Modal Styles */
#importModal .modal-body,
.modal[id$="-import-modal"] .modal-body {
    padding: 1.5rem;
}

#importModal .alert,
.modal[id$="-import-modal"] .alert {
    margin-top: 1rem;
}

#importModal .form-group,
.modal[id$="-import-modal"] .form-group {
    margin-bottom: 0;
}

#importModal .form-control-file,
.modal[id$="-import-modal"] .form-control-file {
    padding: 0.375rem 0;
}

/* Loading spinner */
.fa-spinner {
    margin-right: 0.5rem;
}

/* Custom File Upload Styles */
.custom-file-upload {
    position: relative;
    display: flex;
    align-items: center;
    margin-top: 0.5rem;
}

.custom-file-upload input[type="file"] {
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    z-index: 2;
}

.file-upload-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.75rem;
    background-color: var(--acme-color-bg-hover, #f8f9fa);
    border: 1px solid var(--acme-color-border, #ced4da);
    border-radius: var(--acme-radius-sm, 0.25rem);
    color: var(--acme-color-text-sub, #495057);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    z-index: 1;
}

.file-upload-btn:hover {
    background-color: var(--acme-color-border-light, #e9ecef);
    border-color: var(--acme-color-border, #ced4da);
}

.file-name {
    margin-left: 0.75rem;
    color: #6c757d;
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.modern-upload {
    width: 100%;
    border: 2px dashed var(--acme-color-border, #e0e0e0);
    border-radius: var(--acme-radius-md, 8px);
    text-align: center;
    transition: all 0.3s ease;
    background-color: var(--acme-color-bg-base, #f8f9fa);
    position: relative;
    cursor: pointer;
}

.modern-upload .webuploader-element-invisible {
    position: absolute !important;
    width: 100% !important;
    height: 100% !important;
    top: 0 !important;
    left: 0 !important;
    opacity: 0 !important;
    cursor: pointer !important;
}

.modern-upload:hover,
.modern-upload.dragover {
    border-color: var(--acme-color-primary, #007bff);
    background-color: var(--acme-color-primary-light, #f0f7ff);
    cursor: copy;
}

.modern-upload.dragover {
    transform: scale(1.02);
}

.modern-upload .upload-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 150px;
}

.modern-upload .upload-icon {
    font-size: 48px;
    color: var(--acme-color-text-sub, #6c757d);
    margin-bottom: 16px;
}

.modern-upload .upload-text {
    margin-bottom: 8px;
}

.modern-upload .upload-title {
    color: var(--acme-color-text-sub, #6c757d);
    font-size: 14px;
    margin-right: 4px;
}

.modern-upload .upload-button {
    color: var(--acme-color-info, #007bff);
    cursor: pointer;
    font-weight: 500;
}

.modern-upload .upload-hint {
    color: var(--acme-color-text-muted, #adb5bd);
    font-size: 12px;
}

.modern-upload .uploader-list {
    margin-top: 16px;
}

.modern-upload .uploader-list .file-item {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    background-color: var(--acme-color-bg-card, #fff);
    border-radius: var(--acme-radius-sm, 4px);
    margin-bottom: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.modern-upload .uploader-list .file-item .file-name {
    flex: 1;
    color: var(--acme-color-text-sub, #495057);
    font-size: 14px;
}

.modern-upload .uploader-list .file-item .file-status {
    color: var(--acme-color-success, #28a745);
    font-size: 12px;
    margin-left: 8px;
}

.progress-text {
    line-height: 1rem;
    font-size: 14px;
}

/* Global Loading Overlay */
#globalLoadingOverlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.7);
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

/* 确保 jQuery .show() 之后使用 flex 布局 */
#globalLoadingOverlay[style*="display: block"] {
    display: flex !important;
}

#globalLoadingOverlay .loading-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid var(--acme-loading-theme-color, #41b584);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    will-change: transform;
}

#globalLoadingOverlay .loading-text {
    margin-top: 15px;
    color: var(--acme-loading-theme-color, #41b584);
    font-size: 16px;
    text-align: center;
    white-space: nowrap;
}

@media (max-width: 575.98px) {
    .data-operations {
        width: 100%;
        justify-content: flex-end;
    }

    .data-operations .btn-icon {
        min-width: var(--acme-touch-target, 44px);
        min-height: var(--acme-touch-target, 44px);
    }
}

#globalLoadingOverlay .loading-text::after {
    content: '...';
    animation: ellipsis 1.5s infinite;
    display: inline-block;
    width: 24px;
    text-align: left;
}

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

@keyframes ellipsis {
    0% { content: '.'; }
    33% { content: '..'; }
    66% { content: '...'; }
    100% { content: '.'; }
}