body {
    background-color: #f5f7fa;
}

.chart-container {
    background: #fff;
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 15px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.chart-box {
    width: 100%;
    height: 280px;
}

.profile-chart-box {
    width: 100%;
    height: 350px;
}

.upload-zone {
    border: 2px dashed #ccc;
    border-radius: 10px;
    padding: 40px;
    text-align: center;
    background: #fafafa;
    transition: border-color 0.2s;
}

.upload-zone:hover {
    border-color: #0d6efd;
}

.cleaning-summary {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.badge-air {
    background-color: #dc3545;
}

.badge-outlier {
    background-color: #fd7e14;
}

.badge-valid {
    background-color: #198754;
}

.preview-chart {
    width: 100%;
    height: 300px;
}

.tab-content {
    padding-top: 15px;
}

.loading-spinner {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 60px;
}