html, body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    width: 100%;
    overflow-x: hidden;
    overflow-y: auto; /* ? allow vertical scroll when needed */
}

/* Page wrapper */
.register-page-wrapper {
    position: relative;
    min-height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 20px;
    box-sizing: border-box;
}

/* Background image */
.bg-images {
    position: fixed; /* ? changed from fixed */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    opacity: 0.8;
}

/* Logo + buttons container */
.logo-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 900px;
    padding: 20px;
    box-sizing: border-box;
    text-align: center;
}

/* Logo image */
.center-img {
    max-width: 90%;
    width: 100%;
    height: auto;
    margin-bottom: 30px;
}

/* Buttons container */
.button-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

    .button-group a {
        font-size: 18px;
        padding: 15px 30px;
        max-width: 300px;
        min-width: 300px;
        border-radius: 20px;
        text-align: center;
    }

/* Tablet */
@media (max-width: 768px) {
    .center-img {
        max-width: 400px;
        margin-bottom: 50px;
    }

    .button-group {
        flex-direction: column;
        gap: 15px;
    }

        .button-group a {
            width: 100%;
            max-width: none;
            min-width: unset;
            font-size: 15px;
        }
}

/* Mobile */
@media (max-width: 480px) {
    .center-img {
        max-width: 150px;
    }

    .button-group a {
        font-size: 14px;
        padding: 10px;
    }
}