body {
    font-family: 'Arial', sans-serif;
    background-color: #111;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.brainlock-container {
    text-align: center;
    max-width: 600px;
    padding: 20px;
    background: rgba(0,0,0,0.8);
    border-radius: 15px;
    box-shadow: 0 0 20px #0ff, 0 0 40px #0ff inset;
}

.sequence-line {
    display: flex;
    justify-content: space-between;
    margin: 30px 0;
}

.bulb {
    width: 50px;
    height: 50px;
    background-color: #222;
    border-radius: 50%;
    box-shadow: 0 0 10px #000 inset;
    transition: all 0.3s ease;
}

.bulb.active {
    background-color: #0ff;
    box-shadow: 0 0 20px #0ff, 0 0 40px #0ff inset;
}

.controls button {
    padding: 10px 20px;
    margin: 5px;
    font-size: 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    background-color: #0ff;
    color: #111;
    box-shadow: 0 0 10px #0ff;
    transition: all 0.2s ease;
}

.controls button:hover {
    transform: scale(1.1);
}