#game {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: linear-gradient(135deg, #0f0f23, #1a1a2e);
    overflow: hidden;
    padding-top: 20px;
    border-radius: 15px;
}

#canvas {
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

#instructions {
    color: #ccc;
    font-family: 'Segoe UI', sans-serif;
    font-size: 14px;
    margin-top: 15px;
    text-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
}

/* Message Modal */
.message-modal {
    display: none;
    position: fixed;
    z-index: 2;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
}

.message-modal-content {
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: #fff;
    margin: 20% auto;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    width: 300px;
    text-align: center;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.message-close {
    color: #ccc;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.message-close:hover {
    color: #fff;
}

#message-ok {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
}

#message-ok:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}