.back-to-top {
    position: fixed;
    right: max(1rem, env(safe-area-inset-right));
    bottom: max(1rem, env(safe-area-inset-bottom));
    z-index: 1000;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    min-height: 44px;
    padding: 0.55rem 0.9rem;
    border: 1px solid var(--brand-navy);
    border-radius: 999px;
    background: var(--brand-navy);
    box-shadow: 0 3px 12px rgb(21 38 59 / 24%);
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-weight: 600;
    line-height: 1.2;
}

.back-to-top[hidden] {
    display: none !important;
}

.back-to-top:hover {
    border-color: var(--brand-amber);
    background: var(--brand-amber);
    color: var(--brand-navy);
}

.back-to-top:focus-visible {
    outline: 3px solid var(--brand-amber);
    outline-offset: 3px;
}

.back-to-top-arrow {
    font-size: 1.2em;
    line-height: 1;
}