body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    font-family: 'Arial', sans-serif;
    background-color: #1a1a1a; /* Dark background */
    color: white; /* White text color */
    display: flex;
    justify-content: center;
    align-items: center;
}

.simulation-container {
    text-align: center;
    background-color: #333; /* Slightly lighter background for the container */
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 0px 15px rgba(0, 0, 0, 0.5); /* Soft shadow */
}

h1 {
    font-size: 36px;
    margin-bottom: 20px;
    color: #ffcc00; /* Bright color for the title */
}

canvas {
    border: 1px solid #555; /* Subtle border */
    background-color: black;
    width: 100%; 
    height: auto; 
    max-width: 500px; /* Responsive canvas size */
    margin: 20px 0;
}

.controls {
    margin-top: 10px;
}

button {
    padding: 10px 20px;
    margin: 0 5px;
    font-size: 16px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #2980b9;
}

.info {
    margin-top: 15px;
    font-size: 18px;
    color: #ccc; /* Lighter color for secondary info */
}

.legend {
    margin-top: 20px;
    font-size: 14px;
    text-align: left;
    color: #ccc;
}

.legend p {
    margin: 5px 0;
}

.color-box {
    display: inline-block;
    width: 20px;
    height: 20px;
    margin-right: 10px;
    vertical-align: middle;
}