body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #0e0e0e;
    color: #ffffff;
    overflow: hidden;
}

#controls {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 15px;
    background: rgba(20, 20, 20, 0.9);
    border-radius: 8px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.5);
    z-index: 10;
}

label {
    font-size: 14px;
    display: block;
    margin-bottom: 10px;
}

.control-slider, .control-select {
    width: 100%;
    padding: 5px;
    margin-top: 5px;
    border: 1px solid #444;
    background: #1e1e1e;
    color: #fff;
    border-radius: 4px;
}

.control-slider {
    -webkit-appearance: none;
    appearance: none;
    background: #2c3e50;
}

.control-slider::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    background: #f39c12;
    border-radius: 50%;
    cursor: pointer;
}

.control-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: #f39c12;
    border-radius: 50%;
    cursor: pointer;
}

button {
    background: #f39c12;
    color: #1e1e1e;
    border: none;
    padding: 8px 15px;
    border-radius: 4px;
    margin-right: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
}

button:hover {
    background: #e67e22;
}

#speed-value {
    font-size: 14px;
    color: #f39c12;
}

#display {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
}

#instructions {
    font-size: 12px;
    line-height: 1.5;
}

#instructions a {
    color: #f39c12;
    text-decoration: none;
}

#instructions a:focus,
#instructions a:hover {
    text-decoration: underline;
}