.btn-whatsapp {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;

    width: 100%;
    padding: 14px 18px;
    margin-top: 10px;

    background: #25D366;
    color: #ffffff;

    font-size: 16px;
    font-weight: 700;
    text-decoration: none;

    border: none;
    border-radius: 12px;

    box-shadow: 0 4px 10px rgba(37, 211, 102, 0.20);

    transition: background 0.2s ease,
                transform 0.2s ease,
                box-shadow 0.2s ease;
}

.btn-whatsapp .bi-whatsapp {
    font-size: 25px;
}

.btn-whatsapp:hover {
    background: #1EBE5D;
    color: #ffffff;
    box-shadow: 0 6px 14px rgba(37, 211, 102, 0.30);
}

.btn-whatsapp:active {
    transform: scale(0.98);
}

.btn-whatsapp:focus-visible {
    outline: 3px solid rgba(37, 211, 102, 0.35);
    outline-offset: 3px;
}