body {
    margin: 0;
    padding: 0;
}

.container {
    width: 100%;
    height: 100vh;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background: linear-gradient(to bottom, #333 0%, #333 50%, #39FF14 100%);
    background-size: 100% 200%;
    /* animation-delay: 3s; */
    animation: neon 5s infinite alternate;
}

@keyframes neon {
    0% {
        background-position: 0% 0%;
    }
    100% {
        background-position: 0% 100%;
    }
}

.row {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 2px;
    margin: 2px 0;
}

.col {
    flex: 1 1 auto;
    width: 5vw;
    height: 5vh;
    background-color: #2f2f2f;
    /* transition: background-color 0.1s ease-in-out; */
    transition: box-shadow 0.5s ease-in-out, background-color 0.5s ease-in-out;
    box-shadow: 0 0 10px rgba(0, 255, 0, 0);
}

.col:hover {
    /* animation: neon 0.5s forwards; */
    background-color: #39FF14;
    box-shadow: 0 0 20px rgb(57, 255, 20, 0.8);
}

.form-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    box-shadow: 5px 5px 50px #101010, -5px -5px 50px #101010;
    border-radius: 10px;
    /* background-color: red; */
}

.form-container.active {
    perspective: 1000px;
}

form {
    background-color: #1d1d1d;
    padding: 50px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-weight: 100;
    border-radius: 10px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.form-container.active form {
    transform-style: preserve-3d;
    transition: transform 0.5s;
    position: relative;
}

.form-container .signup-form {
    transform: rotateY(180deg);
    display: none;
}


/* 
.signin-form {
    display: none;
} */

.form-container.active .signin-form {
    transform: rotateY(180deg);
}

.form-container.active .signup-form {
    transform: rotateY(0deg);
}

form h1 {
    margin: 0;
    text-align: center;
    color: #39FF14;
    margin-bottom: 30px;
    text-shadow: 0px 0px 10px rgb(57, 255, 20, 0.8);
    transition: ease-in-out 0.5s;
    animation: glow 1s infinite alternate;
}

@keyframes glow {
    0% {
        text-shadow: 0px 0px 10px rgb(57, 255, 20, 0.8);
    }
    100% {
        text-shadow: 0px 0px 30px rgb(57, 255, 20, 0.8);
    }
}

form .text-field input {
    position: relative;
    width: 320px;
    height: 35px;
    margin: 5px 10px;
    background-color: #2f2f2f;
    color: #fff;
    border: none;
    padding-left: 10px;
    border-radius: 3px;
}

form .text-field label {
    position: absolute;
    z-index: 1;
    font-size: 0.8rem;
    color: #fff;
    transition: ease-in-out 0.3s;
}

.signin-form .text-field label.user {
    top: 168px;
    left: 70px;
}

.signin-form .text-field label.user.active {
    top: 150px;
    left: 68px;
    font-size: 0.6rem;
    background-color: #39FF14;
    color: #1d1d1d;
    font-weight: bold;
    padding: 2px 5px;
    border-radius: 5px;
}

.signin-form .text-field label.pass {
    top: 214px;
    left: 70px;
}

.signin-form .text-field label.pass.active {
    top: 200px;
    left: 68px;
    font-size: 0.6rem;
    background-color: #39FF14;
    color: #1d1d1d;
    font-weight: bold;
    padding: 2px 5px;
    border-radius: 5px;
}

.signin-form .links,
.signup-form .links {
    display: flex;
    justify-content: space-evenly;
    margin: 5px 10px;
}

.signin-form .links a,
.signup-form .links a {
    text-decoration: none;
    font-size: 0.9rem;
    top: 10px;
}

.signin-form .links .pass {
    margin-right: 180px;
    color: #fff;
}

.signin-form .links .pass:hover {
    text-decoration: underline;
}

.signin-form .links .signup {
    color: #39FF14;
    font-weight: 400;
}

.signin-form .links .signup:hover {
    text-decoration: underline;
}

.signin-form .submit {
    display: block;
    width: 335px;
}

.signin-form .submit input,
.signup-form .submit input {
    width: 100%;
    height: 30px;
    margin-top: 10px;
    color: #1d1d1d;
    font-weight: bold;
    font-family: Arial, Helvetica, sans-serif;
    background-color: #39FF14;
    letter-spacing: 1px;
    border: none;
    border-radius: 3px;
    transition: box-shadow ease-in-out 0.3s, color ease-in-out 0.3s;
    cursor: pointer;
}

.signin-form .submit input:hover,
.signup-form .submit input:hover {
    /* color: #eaeaea; */
    box-shadow: 2px 2px 10px rgb(57, 255, 20, 0.6), -2px -2px 10px rgb(57, 255, 20, 0.6);
}

label.signUp-user {
    top: 124px;
    left: 70px;
}

.signup-form .text-field label.signUp-user.active {
    top: 106px;
    left: 68px;
    font-size: 0.6rem;
    background-color: #39FF14;
    color: #1d1d1d;
    font-weight: bold;
    padding: 2px 5px;
    border-radius: 5px;
}

label.signUp-pass {
    top: 170px;
    left: 70px;
}

.signup-form .text-field label.signUp-pass.active {
    top: 155px;
    left: 68px;
    font-size: 0.6rem;
    background-color: #39FF14;
    color: #1d1d1d;
    font-weight: bold;
    padding: 2px 5px;
    border-radius: 5px;
}

label.confirm-pass {
    top: 218px;
    left: 70px;
}

.signup-form .text-field label.confirm-pass.active {
    top: 202px;
    left: 68px;
    font-size: 0.6rem;
    background-color: #39FF14;
    color: #1d1d1d;
    font-weight: bold;
    padding: 2px 5px;
    border-radius: 5px;
}

label.signUp-mail {
    top: 264px;
    left: 70px;
}

.signup-form .text-field label.signUp-mail.active {
    top: 250px;
    left: 68px;
    font-size: 0.6rem;
    background-color: #39FF14;
    color: #1d1d1d;
    font-weight: bold;
    padding: 2px 5px;
    border-radius: 5px;
}

.signup-form .links {
    justify-content: end;
    padding-left: 190px;
}

.signup-form .links a {
    color: #39FF14;
    font-size: 0.8rem;
    font-weight: 400;
}

.signup-form .links a:hover {
    text-decoration: underline;
}

.signup-form .submit {
    width: 335px;
}

footer {
    background-color: #1d1d1d;
    position: fixed;
    bottom: 0;
    width: 100%;
    left: 0;
    text-align: center;
    padding: 10px 0;
}

.eye {
    position: absolute;
    background-color: transparent;
    border: none;
    text-align: center;
    cursor: pointer;
}

.signin-eye {
    right: 63px;
    top: 214px;
}

.signup-eye {
    /* position: absolute; */
    z-index: 1;
    right: 63px;
    top: 170px;
}

.confirm-eye {
    top: 218px;
    right: 63px;
}

.eye i {
    color: #fff;
    font-size: 1rem;
}

footer span {
    color: #ffffff;
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
}

@media (max-width: 768px) {
    .col {
        width: 10vw;
        height: 10vh;
    }
}

@media (max-width: 480px) {
    .col {
        width: 12.5vw;
        height: 12.5vh;
    }
    .signin-eye {
        right: 63px;
        top: 206px;
    }
    .signup-eye {
        /* position: absolute; */
        z-index: 1;
        right: 63px;
        top: 162px;
    }
    .confirm-eye {
        top: 210px;
        right: 63px;
    }
}