body {
    font-family: Arial, sans-serif;
    background-color: #f2f2f2;
}

h1 {
    text-align: center;
    margin-top: 50px;
    margin-bottom: -20px;
    color: #333333;
    font-family: Arial, sans-serif;
    font-weight: bold;
}

.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 50px;
}

.card {
    margin: 20px;
    padding: 20px;
    background-color: #ffffff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    min-width: 250px;
    text-align: center;
}

.card h2 {
    font-size: 24px;
    color: #333333;
}

.card p {
    font-size: 18px;
    color: #666666;
}

.card .value {
    font-size: 36px;
    color: #ff9900;
    margin-top: 20px;
}

.card .change {
    font-size: 18px;
    color: #666666;
    margin-top: 10px;
}

.card .positive {
    color: #009900;
}

.card .negative {
    color: #ff0000;
}

.card.green {
    border-left: 6px solid #4CAF50;
}

.card.blue {
    border-left: 6px solid #2196F3;
}

.card.red {
    border-left: 6px solid #f44336;
}