/* Add Zalo floating button */
.zalo-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    animation: pulse-zalo 2s ease-in-out infinite;
}

.zalo-float a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #0068FF 0%, #0095FF 100%);
    border-radius: 50%;
    box-shadow: 0 10px 30px rgba(0, 104, 255, 0.5);
    text-decoration: none;
    transition: var(--transition-base);
}

.zalo-float a:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 40px rgba(0, 104, 255, 0.7);
}

.zalo-float i {
    font-size: 30px;
    color: white;
}

@keyframes pulse-zalo {

    0%,
    100% {
        box-shadow: 0 10px 30px rgba(0, 104, 255, 0.5), 0 0 0 0 rgba(0, 104, 255, 0.7);
    }

    50% {
        box-shadow: 0 10px 30px rgba(0, 104, 255, 0.5), 0 0 0 20px rgba(0, 104, 255, 0);
    }
}

/* Make footer bottom text more readable */
.footer-bottom p {
    margin: 0.25rem 0;
}

/* Mobile responsiveness for Zalo button */
@media (max-width: 768px) {
    .zalo-float {
        bottom: 20px;
        right: 20px;
    }

    .zalo-float a {
        width: 50px;
        height: 50px;
    }

    .zalo-float i {
        font-size: 24px;
    }
}