/* =========================================
   Back to Top Button
   ========================================= */

.e2g-back-to-top {
    --e2g-back-to-top-accent: #1c4da1;

    position: fixed;
    right: 1.5rem;
    bottom: 1.5rem;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    background: var(--wp--preset--color--background, #ffffff);
    border: 1.5px solid color-mix(in srgb, var(--e2g-back-to-top-accent) 50%, transparent);
    border-radius: 50%;
    color: var(--e2g-back-to-top-accent);
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
    opacity: 0;
    visibility: hidden;
    transform: translateY(0.5rem);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.e2g-back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.e2g-back-to-top:hover {
    background: color-mix(in srgb, var(--e2g-back-to-top-accent) 12%, transparent);
    border-color: var(--e2g-back-to-top-accent);
    transform: scale(1.05);
}

.e2g-back-to-top:focus-visible {
    outline: 2px solid color-mix(in srgb, var(--e2g-back-to-top-accent) 80%, transparent);
    outline-offset: 2px;
}

.e2g-back-to-top__icon {
    width: 1.125rem;
    height: 1.125rem;
    display: block;
    pointer-events: none;
}

@media (max-width: 639px) {
    .e2g-back-to-top {
        right: 1rem;
        bottom: 1rem;
        width: 2.5rem;
        height: 2.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .e2g-back-to-top {
        transition: opacity 0.2s ease, visibility 0.2s ease;
        transform: none;
    }
}