#mainMenu,
#tutorialScreen,
#difficultyScreen,
#achievementScreen,
#settingsScreen,
#shopScreen,
#gameOverScreen{
    flex-direction:column;
    justify-content:center;
    align-items:center;
    gap:15px;
    background:
    linear-gradient(
    180deg,
    #1f1f1f,
    #0f0f0f
    );
}

#mainMenu h1{
    font-size:4rem;
    color:#ffcc00;
    text-shadow:
    0 0 10px #ffcc00,
    0 0 20px #ff9900;
}

#mainMenu button,
#tutorialScreen button,
#difficultyScreen button,
#achievementScreen button,
#settingsScreen button,
#shopScreen button,
#gameOverScreen button{
    width:240px;
    padding:15px;
    border-radius:10px;
    background:#2e7dff;
    color:white;
    font-size:1rem;
    transition:.2s;
}

#mainMenu button:hover,
#tutorialScreen button:hover,
#difficultyScreen button:hover,
#achievementScreen button:hover,
#settingsScreen button:hover,
#shopScreen button:hover,
#gameOverScreen button:hover{
    transform:scale(1.05);
    background:#4a91ff;
}

.tutorial-text{
    width:80%;
    max-width:600px;
    background:#222;
    border:1px solid #444;
    padding:20px;
    border-radius:10px;
    line-height:1.8;
}

#achievementList{
    width:80%;
    max-width:700px;
    max-height:400px;
    overflow-y:auto;
    background:#1b1b1b;
    border:1px solid #333;
    padding:20px;
    border-radius:10px;
}

.achievement-item{
    padding:10px;
    margin-bottom:10px;
    border-radius:8px;
    background:#292929;
}

.achievement-unlocked{
    border-left:5px solid #00d26a;
}

.achievement-locked{
    border-left:5px solid #666;
}

#finalScore{
    font-size:2rem;
    color:#ffcc00;
}