.message-block {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    background: var(--color-white);
    border-radius: var(--radius-sm);
    padding: 24px;
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 20px;
    box-shadow: var(--shadow);
}
.message-block__text {
    flex: 1 1 auto;
}
.message-block__buttons {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
@media screen and (min-width: 768px) {
    .message-block {
        width: 700px;
        flex-direction: row;
        align-items: center;
        left: 50%;
        transform: translate(-50%,0);
        bottom: 15px;
    }
}