/* Site FAB — floating contact / social speed-dial */
.site-fab {
    --site-fab-size: 3.25rem;
    --site-fab-gap: 0.75rem;
    position: fixed;
    z-index: 45;
    left: 0.35rem;
    bottom: calc(4.75rem + env(safe-area-inset-bottom, 0px));
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--site-fab-gap);
    pointer-events: none;
}

@media (min-width: 1024px) {
    .site-fab {
        left: 0.75rem;
        bottom: 1.5rem;
    }
}

.site-fab__backdrop {
    position: fixed;
    inset: 0;
    z-index: -1;
    background: hsl(var(--text) / 0.22);
    opacity: 0;
    transition: opacity 0.25s ease;
    pointer-events: none;
}

.site-fab.is-open .site-fab__backdrop {
    opacity: 1;
    pointer-events: auto;
}

.site-fab__panel,
.site-fab__toggle {
    pointer-events: auto;
}

.site-fab__panel {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.site-fab__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column-reverse;
    gap: 0.65rem;
}

.site-fab__item {
    opacity: 0;
    transform: translateY(12px) scale(0.92);
    transition:
        opacity 0.22s ease,
        transform 0.22s ease;
    transition-delay: 0s;
    pointer-events: none;
}

.site-fab.is-open .site-fab__item {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.site-fab.is-open .site-fab__item:nth-child(1) { transition-delay: 0.02s; }
.site-fab.is-open .site-fab__item:nth-child(2) { transition-delay: 0.06s; }
.site-fab.is-open .site-fab__item:nth-child(3) { transition-delay: 0.10s; }
.site-fab.is-open .site-fab__item:nth-child(4) { transition-delay: 0.14s; }
.site-fab.is-open .site-fab__item:nth-child(5) { transition-delay: 0.18s; }

.site-fab__action {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    text-decoration: none;
    color: hsl(var(--text));
}

.site-fab__label {
    background: hsl(var(--muted));
    border: 1px solid hsl(var(--border));
    color: hsl(var(--text));
    font-size: 0.8125rem;
    font-weight: 600;
    line-height: 1.2;
    padding: 0.45rem 0.75rem;
    border-radius: 999px;
    box-shadow: 0 8px 24px hsl(var(--text) / 0.08);
    white-space: nowrap;
}

.site-fab__icon {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: hsl(var(--muted));
    border: 1px solid hsl(var(--border));
    color: hsl(var(--text));
    box-shadow: 0 10px 28px hsl(var(--text) / 0.12);
    transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease;
    overflow: hidden;
}

.site-fab__icon-img {
    width: 1.55rem;
    height: 1.55rem;
    object-fit: contain;
    display: block;
}

.site-fab__action:hover .site-fab__icon,
.site-fab__action:focus-visible .site-fab__icon {
    transform: scale(1.06);
}

.site-fab__action--custom .site-fab__icon {
    background: hsl(var(--muted));
    color: hsl(var(--text));
}

.site-fab__toggle {
    width: var(--site-fab-size);
    height: var(--site-fab-size);
    border: 0;
    border-radius: 999px;
    background: hsl(var(--primary-btn));
    color: #fff;
    cursor: pointer;
    position: relative;
    box-shadow:
        0 12px 28px hsl(var(--primary) / 0.35),
        0 2px 8px hsl(var(--text) / 0.12);
    transition: transform 0.25s ease, background-color 0.2s ease, box-shadow 0.25s ease;
}

.site-fab__hint {
    position: absolute;
    left: calc(100% + 0.55rem);
    top: 50%;
    transform: translateY(-50%);
    white-space: nowrap;
    background: hsl(var(--muted));
    color: hsl(var(--text));
    border: 1px solid hsl(var(--border));
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.35rem 0.7rem;
    box-shadow: 0 8px 20px hsl(var(--text) / 0.1);
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.site-fab.is-open .site-fab__hint {
    opacity: 0;
    transform: translateY(-50%) translateX(-6px);
}

.site-fab__toggle:hover,
.site-fab__toggle:focus-visible {
    transform: scale(1.05);
    outline: none;
}

.site-fab.is-open .site-fab__toggle {
    background: hsl(var(--text));
    box-shadow: 0 10px 24px hsl(var(--text) / 0.2);
}

.site-fab__toggle-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.2s ease, transform 0.25s ease;
}

.site-fab__toggle-icon--close {
    opacity: 0;
    transform: rotate(-90deg) scale(0.7);
}

.site-fab.is-open .site-fab__toggle-icon--open {
    opacity: 0;
    transform: rotate(90deg) scale(0.7);
}

.site-fab.is-open .site-fab__toggle-icon--close {
    opacity: 1;
    transform: rotate(0) scale(1);
}

@media (prefers-reduced-motion: reduce) {
    .site-fab__item,
    .site-fab__toggle,
    .site-fab__toggle-icon,
    .site-fab__backdrop,
    .site-fab__icon {
        transition: none;
    }
}