/* Custom CSS for Chronos 2 Forecasting App */

/* Body and container */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f8f9fa;
}

/* Card enhancements */
.card {
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 1.5rem;
    transition: box-shadow 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.card-header {
    background-color: #fff;
    border-bottom: 2px solid #0066CC;
    font-weight: 600;
}

/* Upload area */
#upload-data {
    cursor: pointer;
    transition: all 0.3s ease;
}

#upload-data:hover {
    border-color: #0066CC !important;
    background-color: #e7f3ff !important;
}

/* Buttons */
.btn-primary {
    background-color: #0066CC;
    border-color: #0066CC;
}

.btn-primary:hover {
    background-color: #0052a3;
    border-color: #0052a3;
}

/* Loading spinner */
.dash-spinner {
    color: #0066CC;
}

/* Slider customization */
.rc-slider-track {
    background-color: #0066CC;
}

.rc-slider-handle {
    border-color: #0066CC;
}

.rc-slider-handle:active,
.rc-slider-handle:focus,
.rc-slider-handle:hover {
    border-color: #0052a3;
    box-shadow: 0 0 0 5px rgba(0, 102, 204, 0.2);
}

/* Table styling */
.table {
    font-size: 0.9rem;
}

.table thead th {
    background-color: #0066CC;
    color: white;
    border: none;
    font-weight: 600;
}

/* Alert styling */
.alert {
    border-radius: 8px;
    border: none;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .card-body {
        padding: 1rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h5 {
        font-size: 1.1rem;
    }
}

/* Chart container */
#forecast-chart {
    border-radius: 8px;
}

/* Metrics cards */
.metrics-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
}

/* Footer */
footer {
    margin-top: 3rem;
    padding: 1rem 0;
    border-top: 1px solid #dee2e6;
}

/* Accessibility improvements */
:focus {
    outline: 2px solid #0066CC;
    outline-offset: 2px;
}

/* Loading overlay */
._dash-loading {
    background-color: rgba(255, 255, 255, 0.8);
}

._dash-loading-callback {
    color: #0066CC;
}

/* Quality report badges */
.badge {
    font-weight: 500;
    padding: 0.5em 0.75em;
}