body {
    font-family: Arial, sans-serif;
    text-align: center;
    background: #f0f0f0;
}

.menu button, .controls button {
    padding: 10px 20px;
    margin: 5px;
    font-size: 16px;
    cursor: pointer;
}

.memory-area {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}

.memory-cell {
    background: #4caf50;
    color: white;
    padding: 10px;
    border-radius: 10px;
    min-width: 60px;
    position: relative;
    transition: transform 0.3s ease;
}

.memory-cell:hover {
    transform: scale(1.1);
}

.memory-cell .address {
    font-size: 12px;
    position: absolute;
    bottom: -28px;
    left: 55%;
    transform: translateX(-50%);
    color: #333;
}

.memory-cell.freed {
    background-color: #cccccc !important;
    color: #444;
    opacity: 0.6;
    position: relative;
}

.memory-cell.freed::after {
    content: "freed";
    font-size: 10px;
    color: red;
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
}