main {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 550px;
}

.login-title {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 70px;
}

main form {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.oublie-mdp,.compte-creation {
    margin: 5px;
}

main a.compte-creation {
    margin-bottom: 12px;
}

main a {
    margin: 5px;
    font-size: 19px;
    color: #5a2d7f;
}

main a:visited {
    color: #5a2d7f;
}

main a:hover {
    color: #752cbd;
}

main a:link {
    text-decoration: none;
}

.form-group {
    position: relative;
    margin-bottom: 20px;
}

.form-control {
    font-size: 17px;
    display: flex;
    justify-content: center;
    margin: 10px;
    align-items: center;
    border: none;
    border-bottom: 1px solid #5a2d7f;
    transition: border-color 0.3s ease-out;
}

main label {
    position: absolute;
    top: 50%;
    left: 12px;
    transform: translateY(-50%);
    pointer-events: none;
    color: #999;
    transition: 0.3s ease-out;
}

main input,
main textarea {
    padding: 12px 12px 4px;
    border: 1px solid #ddd;
    border-radius: 4px;
    transition: 0.3s ease-out;
}

main input:focus,
main textarea:focus {
    border-color: #666;
}

main input:focus + label,
main textarea:focus + label,
main input:valid + label,
main textarea:valid + label {
    top: 10px;
    font-size: 12px;
    color: #666;
}

.form-control:focus {
    outline: none;
    border-color: transparent;
    border-bottom-color: #5a2d7f;
}

.login-title {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 70px;
}

main .button_effect {
    margin-bottom: 20px;
    font-size: 17px;
}

button {
    display: block;
    padding: 12px;
    margin-top: 20px;
    background-color: #333;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease-out;
}

button:hover {
    background-color: #555;
}

main label {
    position: absolute;
    top: 50%;
    left: 12px;
    transform: translateY(-50%);
    pointer-events: none;
    color: #999;
    transition: 0.3s ease-out;
    font-size: 12px;
}

.form-control:focus + label,
.form-control.filled + label {
    top: 10px;
    font-size: 16px;
    color: #665;
}

#popupContainer {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
}

#popupContent {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    padding: 20px;
    background-color: #ff4949;
    color: white;
    text-align: center;
    cursor: pointer;
}

#closePopupButton {
    position: absolute;
    top: 10px;
    right: 10px;
    cursor: pointer;
}

div.form-group label {
    font-size: 14px;
}

@media screen and (min-width: 1200px) {
    main .button_effect {
        margin-bottom: 30px;
        font-size: 21px;
    }

    main {
        min-height: 600px;
    }

    main a {
        margin: 10px;
        font-size: 23px;
    }

    .form-control {
        font-size: 26px;
    }

    div.form-group {
        margin-bottom: 25px;
    }

    div.form-group label {
        font-size: 21px;
    }

    main input {
        padding: 18px 18px 6px;
    }

    .form-control:focus + label,
    .form-control.filled + label {
        font-size: 23px;
    }
}