.contact-btn {
    background: var(--main-alt-color);
    color: var(--content-alt-color);
    border: none;
    padding: 0.5em 1.5em;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1em;
    cursor: pointer;
}

.contact-btn:hover {
    background: var(--main-alt-color-hover);
    color: var(--content-alt-color-hover);
}