/* FAB 'Liên hệ Trợ lý' — Floating Action Button
   Extracted from booking.DoHa3gua.css, attribute selectors removed for global use. */
.booking-fb-contact {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .35rem;
    text-decoration: none;
}
.booking-fb-bubble {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, #c1a784, #a8916e);
    box-shadow: 0 6px 18px #c1a78466;
    transition: transform .3s ease, box-shadow .3s ease;
}
.booking-fb-contact:hover .booking-fb-bubble {
    transform: scale(1.1);
    box-shadow: 0 10px 24px #c1a7848c;
}
.booking-fb-bubble svg {
    position: relative;
    z-index: 2;
}
.booking-fb-label {
    font-size: .75rem;
    font-weight: 600;
    color: #8a7462;
    letter-spacing: .02em;
    white-space: nowrap;
    text-align: center;
    background: #ffffffd9;
    padding: 2px 8px;
    border-radius: 4px;
    backdrop-filter: blur(4px);
}
.booking-fb-pulse {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, #c1a784, #a8916e);
    animation: fbPulse 2s ease-in-out infinite;
    pointer-events: none;
}
@keyframes fbPulse {
    0%, 100% { transform: scale(1); opacity: .7; }
    50% { transform: scale(1.4); opacity: 0; }
}
@media (max-width: 640px) {
    .booking-fb-contact { bottom: 1.5rem; right: 1.5rem; }
    .booking-fb-bubble { width: 48px; height: 48px; }
    .booking-fb-label { font-size: .7rem; }
}