body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f4f4f4;
}

.container {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#game-board {
    display: grid;
    grid-template-columns: repeat(2, 100px);
    gap: 10px;
    margin: 20px 0;
}

.color {
    width: 100px;
    height: 100px;
    cursor: pointer;
    border-radius: 10px;
    opacity: 0.4;
    transition: opacity 0.2s;
}

.color.active {
    opacity: 1;
}

.color.clicked {
    opacity: 1;
    box-shadow: 0 0 10px white;
}

#green {
    background-color: green;
}

#red {
    background-color: red;
}

#yellow {
    background-color: yellow;
}

#blue {
    background-color: blue;
}

#purple {
    background-color: purple;
}

#orange {
    background-color: orange;
}

#pink {
    background-color: pink;
}

#brown {
    background-color: brown;
}

#cyan {
    background-color: cyan;
}

#magenta {
    background-color: magenta;
}

#start-button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 20px;
}

#status {
    font-size: 18px;
    margin-top: 20px;
}