body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #1a1a1a;
    color: #e0e0e0;
    margin: 0;
    padding: 0;
}

.led-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
    padding: 20px;
}

.led {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.3s ease;
}

.led:hover {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
}

.red { background-color: #ff4444; box-shadow: 0 0 20px #ff4444; }
.yellow { background-color: #ffdd44; box-shadow: 0 0 20px #ffdd44; }
.orange { background-color: #ff8844; box-shadow: 0 0 20px #ff8844; }
.blue { background-color: #4488ff; box-shadow: 0 0 20px #4488ff; }
.green { background-color: #44ff44; box-shadow: 0 0 20px #44ff44; }
.violet { background-color: #aa44ff; box-shadow: 0 0 20px #aa44ff; }
.uv { background-color: #6622cc; box-shadow: 0 0 20px #6622cc; }
.white { background-color: #ffffff; box-shadow: 0 0 20px #ffffff; }

#control-panel {
    margin-top: 30px;
    padding: 15px;
    background-color: #292929;
    border-radius: 10px;
    display: inline-block;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

.hidden {
    display: none;
}

input[type="range"] {
    width: 80%;
    margin: 10px 0;
    accent-color: #ff4444;
}