/* 图片压缩工具专用样式 */

.compress-tool {
    max-width: 800px;
    margin: 0 auto;
}

.compress-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.upload-area {
    border: 2px dashed var(--gray-300);
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    background: var(--gray-50);
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--primary-blue);
    background: var(--blue-50);
}

.upload-area.dragover {
    border-color: var(--primary-blue);
    background: var(--blue-100);
    transform: scale(1.02);
}

.upload-icon {
    font-size: 3rem;
    color: var(--gray-400);
    margin-bottom: 1rem;
}

.upload-text {
    color: var(--text-gray);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.upload-hint {
    color: var(--gray-500);
    font-size: 0.9rem;
}

.file-input {
    display: none;
}

.controls {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.format-select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    background: var(--white);
    font-size: 1rem;
    color: var(--text-dark);
}

.preview-area {
    margin-top: 2rem;
}

.result-container {
    background: var(--white);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.preview-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.download-section {
    text-align: center;
    padding: 2rem;
    background: var(--success-bg, #f0f9f0);
    border-radius: 12px;
    margin-top: 2rem;
}

.download-section h3 {
    color: var(--success-color, #28a745);
    margin-bottom: 0.5rem;
}

.download-section p {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
}

.image-preview {
    display: none;
    margin-top: 2rem;
    padding: 2rem;
    background: var(--white);
    border-radius: 12px;
    border: 1px solid var(--gray-200);
}

.preview-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.preview-item {
    text-align: center;
}

.preview-item h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.preview-image {
    max-width: 100%;
    max-height: 300px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.file-info {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--gray-50);
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--text-gray);
}

.compression-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.control-group {
    background: var(--gray-50);
    padding: 1.5rem;
    border-radius: 8px;
}

.control-group h4 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.slider-container {
    margin-bottom: 1rem;
}

.slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--gray-200);
    outline: none;
    -webkit-appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-blue);
    cursor: pointer;
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-blue);
    cursor: pointer;
    border: none;
}

.slider-value {
    display: inline-block;
    margin-left: 1rem;
    font-weight: 500;
    color: var(--primary-blue);
}

.format-selector {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.format-option {
    padding: 0.5rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: 6px;
    background: var(--white);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.format-option:hover {
    border-color: var(--primary-blue);
}

.format-option.active {
    border-color: var(--primary-blue);
    background: var(--blue-50);
    color: var(--primary-blue);
}

.action-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn-compress {
    background: var(--primary-blue);
    color: var(--white);
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-compress:hover {
    background: var(--blue-600);
    transform: translateY(-2px);
}

.btn-compress:disabled {
    background: var(--gray-300);
    cursor: not-allowed;
    transform: none;
}

.btn-download {
    background: var(--success-green);
    color: var(--white);
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-download:hover {
    background: var(--green-600);
    transform: translateY(-2px);
}

.progress-container {
    display: none;
    margin: 2rem 0;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary-blue);
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    text-align: center;
    margin-top: 0.5rem;
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .preview-container,
    .compression-controls {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .upload-area {
        padding: 2rem 1rem;
    }
    
    .action-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-compress,
    .btn-download {
        width: 100%;
        max-width: 300px;
    }
}