* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    overflow: hidden;
    background-color: #007676;
    color: #fff;
}

#gameContainer {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

header {
    background-color: #000;
    padding: 1rem 0;
    width: 100%;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 255, 0.6);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: center;
}

header h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #00a4ef;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
    transition: transform 0.3s ease;
}

header img {
    max-width: 80px;
    margin-left: 10px;
}

#gameScreen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: #111;
    border-radius: 8px;
    padding: 1.5rem;
    width: 80%;
    max-width: 500px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
    animation: fadeIn 0.5s ease;
    padding: 15px;
    margin: 20px;
}

canvas {
    border: 2px solid #00a4ef;
    background-color: #000;
    border-radius: 8px;
}

#playerScore {
    font-size: 1.2rem;
    margin-top: 1rem;
    color: #00a4ef;
}

#startScreen,
#gameOverScreen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    padding: 2rem;
    width: 80%;
    max-width: 400px;
    margin: 20px auto;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
    background-color: rgba(0, 0, 0, 0.8);
}

#startForm {
    display: flex;
    flex-direction: column;
    align-items: center;
}

input[type="text"] {
    padding: 0.5rem;
    font-size: 1rem;
    border: none;
    border-radius: 4px;
    margin-right: 0.5rem;
}

button {
    padding: 0.5rem 1rem;
    font-size: 1rem;
    background-color: #ff5555;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #cc4444;
}

#gameOverScreen h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #ff5555;
}

#gameOverScreen button {
    background-color: #ff5555;
}

#gameOverScreen button:hover {
    background-color: #cc4444;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    header h1 {
        font-size: 1.5rem;
    }
    header img {
        max-width: 60px;
    }
    #gameScreen,
    #startScreen,
    #gameOverScreen {
        width: 90%;
    }
    #playerScore {
        font-size: 1rem;
    }
    #startForm {
        font-size: 0.8rem;
    }
    input[type="text"],
    button {
        padding: 0.3rem 0.8rem;
        font-size: 0.8rem;
    }
    #gameOverScreen h1 {
        font-size: 2rem;
    }
}

.snake-part {
    background-color: #00FF00; /* Green color for the snake */
    border: 1px solid #00A800; /* Darker green border */
    border-radius: 4px;
    animation: pulse 0.5s infinite alternate; /* Add a simple animation */
}

.fruit {
    background-color: #FF0000; 
    border: 1px solid #A80000; 
    border-radius: 50%; 
    animation: bounce 1s infinite alternate; 
}

@keyframes pulse {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(1.2);
    }
}

@keyframes bounce {
    from {
        transform: translateY(0);
    }
    to {
        transform: translateY(-10px);
    }
}