/* 简笔画转换器样式 */

.upload-area {
    border: 2px dashed #ccc;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    background-color: #fafafa;
    transition: border-color 0.3s ease;
    margin-bottom: 20px;
}

.upload-area:hover {
    border-color: #007bff;
    background-color: #f0f8ff;
}

.upload-area.dragover {
    border-color: #007bff;
    background-color: #e3f2fd;
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 10px;
}

.settings-section {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.setting-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.setting-item label {
    min-width: 80px;
    font-weight: 500;
}

.setting-item input[type="range"] {
    flex: 1;
    margin: 0 10px;
}

.setting-item span {
    min-width: 40px;
    text-align: center;
    background-color: #fff;
    padding: 5px;
    border-radius: 4px;
    border: 1px solid #ddd;
}

.action-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.preview-section {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.image-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.image-container {
    text-align: center;
}

.image-container h4 {
    margin-bottom: 10px;
    color: #333;
}

.image-container canvas {
    max-width: 100%;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #fff;
}

.download-section {
    text-align: center;
}

.download-section .btn {
    margin: 0 5px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .settings-grid {
        grid-template-columns: 1fr;
    }
    
    .image-comparison {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .action-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .download-section .btn {
        width: 100%;
        margin: 5px 0;
    }
}

/* 按钮样式 */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #007bff;
    color: white;
}

.btn-primary:hover {
    background-color: #0056b3;
}

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background-color: #545b62;
}

.btn-success {
    background-color: #28a745;
    color: white;
}

.btn-success:hover {
    background-color: #1e7e34;
}

/* 进度指示器 */
.progress-container {
    width: 100%;
    background-color: #f0f0f0;
    border-radius: 10px;
    margin: 20px 0;
    overflow: hidden;
}

.progress-bar {
    height: 20px;
    background-color: #007bff;
    border-radius: 10px;
    transition: width 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 12px;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 123, 255, 0.3);
    border-radius: 50%;
    border-top-color: #007bff;
    animation: spin 1s ease-in-out infinite;
}

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