body {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

#svg * {
    transition: all 0.5s ease;
}

#btnFit, #btnPhysio, #btnReha {
    cursor: pointer;
}

.grau {
    filter: grayscale(1) brightness(1.35);
}