/* General Styles */
body {
    font-family: 'Open Sans', Arial, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    line-height: 1.6;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 1rem 0;
    text-align: center;
    font-size: 1.5rem;
}

main {
    padding: 1rem;
}

footer {
    text-align: center;
    color: #666;
    padding: 0.5rem;
    font-size: 0.9rem;
    background-color: #f9f9f9;
    border-top: 1px solid #ddd;
}

/* Controls Section */
#controls {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

#controls label {
    font-weight: bold;
}

#filter {
    padding: 0.5rem;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    width: 300px;
    transition: border-color 0.3s ease;
}

#filter:focus {
    border-color: #4CAF50;
    outline: none;
}

#controls button {
    padding: 0.5rem 1rem;
    font-size: 1rem;
    color: white;
    background-color: #4CAF50;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

#controls button:hover {
    background-color: #45a049;
}

#controls button:active {
    background-color: #3e8e41;
    transform: scale(0.98);
}

/* Visualization Section */
#visualization {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
    background-color: #f0f0f0;
    border: 1px solid #ccc;
    box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
}

#data-visualization {
    display: block;
    margin: 0 auto;
}

/* Info Section */
#info {
    margin-top: 2rem;
    text-align: center;
}

#info h2 {
    font-size: 1.2rem;
    color: #333;
    margin-bottom: 0.5rem;
}

#info p {
    font-size: 1rem;
    color: #555;
}