.cta-button, .contact-button, .submit-button {
    padding: 15px 30px;
    background-color: var(--secondary-color);
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
    border-radius: 30px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.cta-button::before, .contact-button::before, .submit-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
    z-index: -1;
}

.cta-button:hover, .contact-button:hover, .submit-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.cta-button:hover::before, .contact-button:hover::before, .submit-button:hover::before {
    width: 300px;
    height: 300px;
}

.submit-button {
    background-color: var(--primary-color);
}

.contact-button {
    padding: 12px 24px;
    background-color: var(--secondary-color);
    color: white;
    font-weight: bold;
    margin-top: 20px;
}