body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin-top: 5vh; 
}

#note {
    font-size: 6vw; 
    font-weight: bold;
    margin-bottom: 2vh;
}

#pitchMeter {
    width: 80vw;
    max-width: 800px;
    height: 40vh;
    max-height: 400px;
    position: relative;
    margin: 0 auto;
}


.pointer {
    width: 0.2vw;
    height: 75%;
    background: red;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform-origin: bottom center;
    transform: translateX(-50%) rotate(0deg);
    transition: background-color 0.3s;
}

.pointer.green {
    background: green;
}


#pitchDiff {
    margin-top: 2vh;
    font-size: 4vw; 
}

select {
    margin-bottom: 2vh;
    font-size: 3vw;
    max-width: 100px; 
}

#noteButtons {
    margin-top: 2vh;
}

#noteButtons button {
    font-size: 3vw;
    margin: 0.5vw;
    padding: 0.5vw 1vw;
    background-color: #f0f0f0;
    border: 1px solid #ccc;
    border-radius: 5px;
    cursor: pointer;
}

#noteButtons button:hover {
    background-color: #e0e0e0;
}

#octaveUp, #octaveDown, #currentOctave {
    display: inline;
}

@media screen and (min-width: 600px) {
    #note {
        font-size: 48px; 
    }
    
    #pitchDiff {
        font-size: 24px; 
    }
    
    select {
        font-size: 16px; 
    }
}