/**
 * 模态框样式
 */

/* ========== 图片模态框 ========== */
.image-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.image-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.modal-image {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

/* 图片加载中状态：隐藏图片和按钮 */
.modal-content.loading .modal-image,
.modal-content.loading .modal-actions {
    display: none;
}

/* Loading 动画 */
.modal-loading {
    display: none;
    padding: 60px;
}

.modal-content.loading .modal-loading {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: modal-spin 0.8s linear infinite;
}

@keyframes modal-spin {
    to { transform: rotate(360deg); }
}

/* 模态框操作按钮 */
.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.modal-close-btn,
.modal-download-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: 14px;
    transition: all var(--transition-fast);
}

.modal-close-btn {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.modal-close-btn:hover {
    background: var(--bg-hover);
}

.modal-download-btn {
    background: var(--accent-color);
    color: white;
}

.modal-download-btn:hover {
    background: var(--accent-hover);
}

/* ========== 参数面板 ========== */
.params-panel {
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
    overflow: hidden;
}

.params-panel-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    font-size: 13px;
    transition: all var(--transition-fast);
}

.params-panel-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.toggle-icon {
    transition: transform var(--transition-fast);
}

.params-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.params-panel.open .params-content {
    max-height: 300px;
}

.params-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    padding-top: 0;
}

.param-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.param-label {
    font-size: 12px;
    color: var(--text-muted);
}

.param-select {
    padding: var(--spacing-sm);
    font-size: 14px;
}

.param-select option:disabled {
    color: var(--text-muted);
    background: var(--bg-tertiary);
}

/* ========== 上传预览 ========== */
.upload-preview {
    display: none;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.upload-preview.active {
    display: block;
}

.preview-content {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.preview-item {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.preview-item .preview-remove-btn {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.preview-item .preview-remove-btn:hover {
    background: var(--error-color);
}

/* ========== 上传错误提示 ========== */
.upload-error {
    display: none;
    margin-top: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius-sm);
    animation: fadeIn 0.2s ease;
}

.upload-error.active {
    display: block;
}

.upload-error-item {
    font-size: 12px;
    color: var(--error-color);
    padding: 2px 0;
    line-height: 1.4;
}

.upload-error-item + .upload-error-item {
    border-top: 1px solid rgba(239, 68, 68, 0.1);
    margin-top: 2px;
    padding-top: 4px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .params-grid {
        grid-template-columns: 1fr;
    }

    .modal-content {
        max-width: 95vw;
    }

    .modal-actions {
        width: 100%;
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .modal-close-btn,
    .modal-download-btn {
        width: 100%;
        justify-content: center;
    }

    .param-select {
        font-size: 16px;
    }

    .preview-item .preview-remove-btn {
        width: 28px;
        height: 28px;
    }
}