body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

header {
    background-color: #6a1b9a;
    color: white;
    text-align: center;
    padding: 1em;
    font-size: 1.5em;
}

.card {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 15px;
    text-align: center;
    transition: transform 0.2s;
    min-height: 200px;
}

.card:hover {
    transform: scale(1.05);
}

.card img {
    width: 50px;
    height: 50px;
    margin-bottom: 10px;
}

.card h2 {
    font-size: 1.2em;
    margin: 10px 0;
    color: #333;
}

.card p {
    margin: 5px 0;
    color: #666;
}

.change-positive {
    color: green;
    font-weight: bold;
}

.change-negative {
    color: red;
    font-weight: bold;
}

.ad-container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    background-color: #d3d3d3;
    padding: 15px;
    text-align: center;
    border-radius: 10px;
}

@media (max-width: 767px) {
    .ad-container {
        margin-top: 10px;
    }
}