body {
    font-family: sans-serif;
    margin: 0;
    background-color: #f0f2f5;
    color: #333;
}

header {
    background-color: #fff;
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid #ccc;
}

main {
    padding: 20px;
}

.search-container {
    margin-bottom: 20px;
}

#search-input {
    width: 100%;
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

#stock-data-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.stock-card {
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.stock-card h3 {
    margin-top: 0;
}