.red__btn{
    font-size: 20px;
    font-weight: 700;
    color: var(--black-color);
    background-color: var(--point-color);
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.line__btn{
    font-size: 20px;
    font-weight: 700;
    border: 1px solid var(--point-color);
    color: var(--point-color);
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.gray__btn{
    width: auto;
    height: auto;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 500;
    color: var(--gray-color);
    background-color: #2B2B2B;
    line-height: 1;
}

@media screen and (max-width: 680px){
    .red__btn{
        font-size: 17px;
    }

    .line__btn{
        font-size: 17px;
    }
}