body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 20px;
    background-color: #f0f0f0;
}

.container {
    display: flex;
    justify-content: space-between;
    width: 600px;
    margin-top: 30px;
}

.square {
    width: 250px;
    height: 250px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 1.5em;
    font-weight: bold;
    cursor: pointer;
    /* Initial (Original) Color: Dark Orange */
    background-color: #ff8c00; 
    transition: background-color 0.1s ease-out;
    border-radius: 10px;
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.2);
    user-select: none;
}

/* 1. Left Click Color (Original Green, renamed to be explicit) */
.square.active-orange {
    background-color: #3cb371; /* Medium Sea Green */
}

/* 2. Right Click Color (NEW: Light Blue) */
.square.active-blue {
    background-color: #87cefa; /* Light Sky Blue */
}