aside.sidebar {
    position:fixed;
    height: 100%;
    padding: 3.2rem 2.4rem; /* mesma coisa que: 32px 24px pq o root ta 62.5%*/
    background: #15C3D6;

    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}

aside.sidebar footer button {
    width: 48px;
    height: 48px;
    border:none;
    background: #12AFCB;
    border-radius: 1.6rem;
    cursor: pointer;

    display: flex;
    justify-content: center;
    align-items: center;

    transition: background-color 0.2s;
}

aside.sidebar footer button:hover{
    background: #17D6EB;
}

.width-sidebar{
    padding-left: 110px;
}