.whatsapp-float {
    position: fixed;
    right: 30px;
    bottom: 30px;
    width: 54px;
    height: 54px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    color: #fff;
    font-size: 30px;
    box-shadow: 0 8px 24px rgba(37, 211, 102, .35);
    z-index: 100;
    text-decoration: none;
    transition: transform .2s ease, box-shadow .2s ease;
}

.whatsapp-float:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 26px rgba(37, 211, 102, .42);
    color: #fff;
}

.back-to-top {
    bottom: 96px;
}

.newsletter-box {
    background: #fff;
    border: 2px solid #ffffff;
    min-height: 56px;
    width: 100%;
}

.newsletter-box .form-control {
    min-width: 0;
    font-size: 1.05rem;
}

.newsletter-box .form-control:focus {
    box-shadow: none;
}

.newsletter-btn {
    min-width: 140px;
    white-space: nowrap;
}

@media (max-width: 768px) {
    .whatsapp-float {
        right: 20px;
        bottom: 20px;
        width: 50px;
        height: 50px;
        font-size: 28px;
    }

    .back-to-top {
        right: 20px;
        bottom: 82px;
    }
}