body {
    background-color: #e0f7fa;
    font-family: 'Helvetica Neue', sans-serif;
    color: #00796b;
}

h1 {
    font-size: 2.5em;
    color: #004d40;
    text-align: center;
}

.chart-container {
    width: 100%;
    height: 300px;
    margin: 40px auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

.chart {
    width: 90%;
    height: 300px;
    border: 2px solid #004d40;
    border-radius: 8px;
    background: #ffffff;
}

.chart-title {
    text-align: center;
    font-weight: bold;
    padding: 10px 0;
}