.floating-contact {
    position: fixed;
    bottom: 30px;
    right: 25px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
}

.float-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
    position: relative;
    border: none;
    cursor: pointer;
    font-size: 18px;
}

.float-btn:hover {
    transform: scale(1.12);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3);
}

.zalo-btn {
    background: #0088ff;
}

.zalo-text {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.msg-btn {
    background: linear-gradient(135deg, #0084ff, #a033ff);
}

.phone-btn {
    background: var(--primary);
    animation: phonePulse 2s infinite ease-in-out;
}

@keyframes phonePulse {
    0% { box-shadow: 0 0 0 0 rgba(194, 65, 12, 0.6); }
    70% { box-shadow: 0 0 0 14px rgba(194, 65, 12, 0); }
    100% { box-shadow: 0 0 0 0 rgba(194, 65, 12, 0); }
}

.top-btn {
    background: #44403c;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.top-btn.visible {
    opacity: 1;
    visibility: visible;
}

.top-btn:hover {
    background: var(--primary);
}

@media (max-width: 640px) {
    .floating-contact {
        bottom: 20px;
        right: 15px;
        gap: 10px;
    }
    .float-btn {
        width: 44px;
        height: 44px;
        font-size: 16px;
    }
}