/* ==================== 滤镜功能样式 ==================== */

/* 预设滤镜按钮网格 */
.filter-presets {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    margin: 15px 0;
}

.filter-preset-btn {
    padding: 12px 8px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-color);
    font-size: 0.85em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.filter-preset-btn i {
    font-size: 1.5em;
    color: var(--primary-color);
}

.filter-preset-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border-color: var(--primary-color);
}

.filter-preset-btn.active {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-color: #667eea;
}

.filter-preset-btn.active i {
    color: white;
}

/* 调节滑块区域 */
.filter-adjustments {
    background: var(--bg-card);
    padding: 20px;
    border-radius: 12px;
    margin-top: 20px;
}

.filter-adjustments .slider-group {
    margin: 20px 0;
}

.filter-adjustments .slider-group label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    color: var(--text-color);
    font-weight: 600;
}

.filter-adjustments .slider-group label span {
    background: var(--primary-color);
    color: white;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.9em;
    min-width: 50px;
    text-align: center;
}

.filter-adjustments input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: linear-gradient(90deg, #e2e8f0 0%, #667eea 50%, #e2e8f0 100%);
    outline: none;
    -webkit-appearance: none;
}

.filter-adjustments input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.4);
}

.filter-adjustments input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.4);
}

.filter-adjustments .slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 5px;
    font-size: 0.8em;
    color: var(--text-muted);
}

/* 响应式 */
@media (max-width: 768px) {
    .filter-presets {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }
    
    .filter-preset-btn {
        padding: 10px 6px;
        font-size: 0.75em;
    }
    
    .filter-preset-btn i {
        font-size: 1.3em;
    }
}