@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}

body {
    position: relative;
    background: #557085;
    min-height: 100vh;
    justify-content: center;
    align-items: center;
    padding: 20px;
    display: flex;
}

.container {
    position: relative;
    width: 800px;
    height: 500px;
    background: white;
    transition: 0.5s;
    overflow: hidden;
}

.img {
    position: relative;
    width: 50%;
    height: 100%;
    transition: 0.5s;
}

img {
    position: relative;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.signin {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
}

.form {
    position: relative;
    width: 50%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
    transition: 0.5s; 
}

.form h2 {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 2px;
    text-align: center;
    width: 100%;
    margin-bottom: 10px;
    color: #555;
}

.form input {
    width: 100%;
    padding: 10px;
    background: #f5f5f5;
    color: #333;
    border: none;
    outline: none;
    box-shadow: none;
    font-size: 15px;
    margin-top: 8px;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.form input[type="submit"]
{
    max-width: 100px;
    background: #677eff;
    color: #fff;
    cursor: pointer;
    letter-spacing: 1px;
    margin-top: 10px;
}

.foot {
    margin-top: 15px;
}

.foot a {
    text-decoration: none;
}

.foot a:hover {
    text-decoration: underline;
}

.signup {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
}

.container .signup {
    pointer-events: none;
}

.container.active .signup {
    pointer-events: initial;
}

.signup .form {
    top: 100%;
}

.container.active .signup .form {
    top: 0;
}

.signup .img {
    top: -100%;
}

.container.active .signup .img {
    top: 0;
}

.container .signin .form {
    top: 0;
}

.container.active .signin .form {
    top: 100%;
}

.container .signin .img {
    top: 0;
}

.container.active .signin .img {
    top: 100%;
}

@media (max-width: 430px) {
    .container {
        max-width: 400px;
    }
    .container img {
        display: none;
    }

    .container .signin .form, .container .signup .form {
        margin-left: -50%;
        width: 100%;
    }
}