*, *::after, *::before {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    user-select: none;
    }
    /* Generic */
    body {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 12px;
    background-color: #9999dd;
    background-image: url("https://wallpapers.com/images/hd/purple-aesthetic-laptop-xuo9xvjiiwjfy7tb.jpg");
    background-size: cover;
    background-position: 50% 50%;
    color: #B4B4B4;
    }
    /**/
    .main {
    position: relative;
    width: 1000px;
    height: 600px;
    padding: 25px;
    background-color: transparent;
    /*background-image: url("https://images.pexels.com/photos/3214110/pexels-photo-3214110.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=1");
    background-size: cover;
    background-position: 50% 50%;*/
    }
    .container {
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: 0;
    width: 600px;
    height: 100%;
    padding: 25px;
    background-color: #FDFDFD;
    background-color: #b36bd9;
    background-image : linear-gradient(to right,#cc99ff,#6600cc);
    transition: 1.25s;
    }
    .form {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    width: 100%;
    height: 100%;
    }
    .form__input {
    width: 350px;
    height: 40px;
    margin: 4px 0;
    padding-left: 25px;
    font-size: 13px;
    letter-spacing: .15px;
    border: none;
    outline: none;
    font-family: 'Montserrat', sans-serif;
    color: #000000;
    background-color: #ffffff;
    }
    .form__span {
    margin-top: 30px;
    margin-bottom: 12px;
    }
    .form__link {
    color: #2F2F2F;
    font-size: 15px;
    margin-top: 25px;
    border-bottom: 1px solid #B4B4B4;
    line-height: 2;
    }
    .title {
    font-size: 34px;
    font-weight: 700;
    line-height: 3;
    color: #ffffff;
    }
    .description {
    font-size: 14px;
    letter-spacing: .25px;
    text-align: center;
    line-height: 1.6;
    }
    .button {
    width: 200px;
    height: 55px;
    border-radius: 27.5px;
    margin-top: 50px;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 1.15px;
    background-color: #44b390;
    color: #FDFDFD;
    border: 2px solid #FDFDFD;
    outline: none;
    }
    /**/
    .a-container {
    z-index: 100;
    left: calc(100% - 600px );
    }
    .b-container {
    left: calc(100% - 600px );
    z-index: 0;
    }
    .switch {
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 400px;
    padding: 50px;
    z-index: 200;
    transition: 1.25s;
    background-image: linear-gradient(indigo,black);
    overflow: hidden;
    }
    .switch__circle {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background-image: linear-gradient(blue,green);
    bottom: -60%;
    left: -60%;
    transition: 1.25s;
    }
    .switch__circle--t {
    top: -30%;
    left: 60%;
    width: 300px;
    height: 300px;
    }
    .switch__container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    position: absolute;
    width: 400px;
    padding: 50px 55px;
    transition: 1.25s;
    }
    .switch__title, .switch__description, .switch__button {
    color: #ffffff;
    }
    .switch__button {
    border: 2px solid #FDFDFD;
    cursor: pointer;
    }
    .switch__button:hover {
    transform: scale(1.015);
    transition: .15s;
    }
    .switch__button:active {
    transform: scale(0.9);
    transition: .15s;
    }
    /**/
    .is-txr {
    left: calc(100% - 400px );
    transition: 1.25s;
    transform-origin: left;
    }
    .is-txl {
    left: 0;
    transition: 1.25s;
    transform-origin: right;
    }
    .is-z200 {
    z-index: 200;
    transition: 1.25s;
    }
    .is-hidden {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    transition: 1.25s;
    }
    .is-gx {
    animation: is-gx 1.25s;
    }
    @keyframes is-gx {
    0%, 10%, 100% {
    width: 400px;
    }
    30%, 50% {
    width: 500px;
    }
    }