.fab-contact {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 50;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}

.fab-channels {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    pointer-events: none;
}

.fab-channel-item {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px 10px 14px;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-sm-token);
    color: var(--ink);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0;
    white-space: nowrap;
    box-shadow: 0 6px 22px rgba(0, 0, 0, 0.12);
    opacity: 0;
    transform: translateY(12px) scale(0.95);
    transition: opacity 0.2s ease, transform 0.2s ease, box-shadow 0.16s ease;
    pointer-events: none;
}

.fab-channel-item:hover {
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.16);
    transform: translateY(0) scale(1.01);
}

.fab-channel-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: var(--radius-md-token);
    background: var(--color-surface-base);
    color: var(--color-text-secondary);
    font-size: 0.66rem;
    font-weight: 900;
    letter-spacing: 0.04em;
    flex-shrink: 0;
}

.fab-channel-badge svg {
    width: 15px;
    height: 15px;
    fill: currentColor;
}

.fab-channels.is-open {
    pointer-events: auto;
}

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

.fab-channels.is-open .fab-channel-item:nth-child(1) {
    transition-delay: 0.05s;
}

.fab-channels.is-open .fab-channel-item:nth-child(2) {
    transition-delay: 0.10s;
}

.fab-channels.is-open .fab-channel-item:nth-child(3) {
    transition-delay: 0.15s;
}

.fab-channels.is-open .fab-channel-item:nth-child(4) {
    transition-delay: 0.20s;
}

.fab-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-width: 58px;
    height: 58px;
    padding: 0 20px 0 18px;
    border: 0;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--fab-toggle-bg-start, #0f3f46), var(--fab-toggle-bg-end, #155d66));
    color: #ffffff;
    cursor: pointer;
    isolation: isolate;
    box-shadow: 0 14px 34px var(--fab-toggle-shadow, rgba(15, 63, 70, 0.34));
    transition: transform 0.22s ease, box-shadow 0.2s ease, filter 0.2s ease;
    flex-shrink: 0;
    user-select: none;
    -webkit-user-select: none;
}

.fab-toggle::after {
    content: "";
    position: absolute;
    inset: -6px;
    z-index: -1;
    border: 1px solid var(--fab-toggle-ring, rgba(21, 93, 102, 0.28));
    border-radius: inherit;
    animation: fab-pulse 2.4s ease-out infinite;
}

.fab-toggle:hover {
    filter: brightness(1.06);
    transform: translateY(-1px) scale(1.03);
    box-shadow: 0 18px 42px var(--fab-toggle-shadow-hover, rgba(15, 63, 70, 0.42));
}

.fab-toggle:active {
    transform: scale(0.96);
}

.fab-toggle:focus-visible,
.fab-channel-item:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

.fab-icon-wrap {
    display: grid;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.fab-icon-wrap svg {
    grid-area: 1 / 1;
    width: 24px;
    height: 24px;
    fill: currentColor;
    transition: transform 0.26s ease, opacity 0.18s ease;
}

.fab-toggle-label {
    color: currentColor;
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.09em;
    line-height: 1;
    text-transform: uppercase;
}

.fab-icon-chat {
    opacity: 1;
    transform: scale(1);
}

.fab-icon-close {
    opacity: 0;
    transform: rotate(-45deg) scale(0.7);
}

.fab-toggle.is-open .fab-icon-chat {
    opacity: 0;
    transform: rotate(45deg) scale(0.7);
}

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

@keyframes fab-pulse {
    0% {
        opacity: 0.62;
        transform: scale(0.92);
    }

    70%,
    100% {
        opacity: 0;
        transform: scale(1.18);
    }
}

@media (max-width: 768px) {
    .fab-contact {
        right: 14px;
        bottom: max(14px, env(safe-area-inset-bottom));
        z-index: 70;
    }

    .fab-channel-item {
        max-width: calc(100vw - 32px);
        padding: 9px 14px 9px 10px;
    }

    .fab-toggle {
        min-width: 54px;
        height: 54px;
        padding: 0 17px;
    }

    .fab-toggle-label {
        display: none;
    }

    .fab-contact.fab-contact--hidden-mobile {
        opacity: 0;
        pointer-events: none;
        transform: translateY(10px);
    }
}