.roi-chart-container {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 2rem;
    height: 400px;
}

.roi-legend {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.legend-dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.bg-cd {
    background: rgba(255, 99, 132, 0.7);
}

.bg-imvest {
    background: rgba(0, 255, 157, 0.7);
}

.bg-futures {
    background: rgba(0, 184, 255, 0.7);
}