*{
    box-sizing: border-box;
}

body{
    background: linear-gradient(90deg, #1CB5E0 0%, #000851 100%);
    font-family: sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
}

.container{
    background: #fff;
    border-radius: 5px;
    overflow: hidden;
    width: 400px;
    max-width: 100%;
}

.header{
    border-bottom: 1px solid #f0f0f0;
    background: #f7f7f7;
    padding: 20px 40px;
}

.header h2{
    margin: 0;
}

.form {
    padding: 30px 40px;
}

.form-control{
    margin-bottom: 10px;
    padding-bottom: 20px;
    position: relative;
}

.form-control label{
    display: inline-block;
    margin-bottom: 5px;
}

.form-control input{
    border: 2px solid #f0f0f0;
    border-radius: 4px;
    display: block;
    font-size: 14px;
    padding: 10px;
    width: 100%;
}

.form-control input:focus{
    outline: none;
    border-color:#777;
}

.form-control.succes input{
    border-color: #2ecc71;
}

.form-control.error input{
    border-color: #e74c3c;
}

.form-control i{
    visibility: hidden;
    position: absolute;
    top: 36px;
    right: 10px;
}

.form-control.succes i.fa-check-circle{
    color: #2ecc71;
    visibility: visible;
}

.form-control.error i.fa-exclamation-circle{
    color: #e74c3c;
    visibility: visible;
}

.form-control small{
    color: #e74c3c;
    position: absolute;
    bottom: 0;
    left: 0;
    visibility: hidden;
}

.form-control.error small{
    visibility: visible;
}

.form button{
    background: linear-gradient(90deg, #4b6cb7 0%, #182848 100%);
    border: 2px solid lime;
    border-radius: 4px;
    color: #fff;
    display: block;
    font-size: 16px;
    padding: 10px;
    margin-top: 20px;
    width: 100%;
}