/* 自定义样式 */

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 图片上传区域动画 */
#dropzone {
    transition: all 0.3s ease;
}

#dropzone.drag-over {
    border-color: #3b82f6;
    background-color: #eff6ff;
}

/* 水印选择区域样式 */
#selection-area {
    cursor: move;
    user-select: none;
}

/* 加载动画 */
.loading-spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto;
    border-radius: 50%;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3b82f6;
    animation: spin 1s linear infinite;
}

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

/* 响应式调整 */
@media (max-width: 640px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
}

/* 图片处理中状态 */
.processing {
    position: relative;
}

.processing::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 图像滤镜效果预览 */
.filter-preview {
    overflow: hidden;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.filter-preview:hover {
    transform: scale(1.03);
}

/* 工具提示 */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltip-text {
    visibility: hidden;
    width: 120px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -60px;
    opacity: 0;
    transition: opacity 0.3s;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}