.back-button {
    position: fixed;
    top: clamp(16px, 2vw, 28px);
    left: clamp(16px, 2vw, 28px);
    z-index: 100;
    display: block;
    width: clamp(38px, 3.6vw, 52px);
    aspect-ratio: 1;
    border-radius: 50%;
    transition: transform .15s ease, opacity .15s ease;
}
.back-button:hover,
.back-button:focus-visible {
    transform: scale(1.07);
    opacity: .82;
}
.back-button img {
    width: 100%;
    height: 100%;
    display: block;
}