*{
    margin: 0px;
    padding: 0px;
}
body{
    background: url('../images/bg-29.jpg') no-repeat;
    background-size: cover;
    background-position-y: -80px;
    font-size: 16px;
    font-family: Roboto, sans-serif;
}
#wrapper{
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

#khung{
    box-shadow: 0px 0px 17px 2px rgba(255, 255, 255, 0.8);
    background: rgb(4 4 4 / 51%);
    color: white;
    display: flex;
    flex-grow: 1;
    flex-direction: column;
    align-content: stretch;
    flex-wrap: wrap;
}

.form-login{
    max-width: 400px;
    background: rgb(4 4 4 / 51%);
    flex-grow: 1;
    padding: 30px 30px 40px;
    box-shadow: 0px 0px 17px 2px rgba(255, 255, 255, 0.8);
}
.form-heading{
    font-size: 25px;
    color: #f5f5f5;
    text-align: center;
    margin-bottom: 30px;
    text-transform: uppercase;
    text-shadow: -1px 1px #f5ec6f;
}
.form-group{
    border-bottom: 1px solid #fff;
    margin-top: 15px;
    margin-bottom: 20px;
    padding-bottom: 3px;
    display: flex;
}
.form-group i{
    color: #fff;
    font-size: 14px;
    padding-top: 5px;
    padding-right: 10px;
}

.form-group:hover{
    border-bottom: 1px solid #54a0ff;
}

.error{
    border-bottom: 1px solid #ff0000;
}
.success{
    border-bottom: 1px solid #fff;
}

.form-group small {
    color: #ff0000;
    visibility: hidden;
    font-size: 12px;
}
.error small {
    visibility: visible;
}

.success small {
    visibility: hidden;
}

.form-input{
    background: transparent;
    border: 0;
    font-size: 13pt;
    outline: 0;
    color: #f5f5f5;
    flex-grow: 1;
}



.form-input::placeholder{
    color: #f5f5f5;
}
#eye i{
    padding-right: 0;
    cursor: pointer;
}
 
.btn {
    font-size: 12px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
    -webkit-border-radius: 2px;
    -moz-border-radius: 2px;
    -ms-border-radius: 2px;
    border-radius: 2px;
    -webkit-transition: 0.5s;
    -o-transition: 0.5s;
    transition: 0.5s;
    padding: 8px 15px !important;
}

.form-submit{
    background: transparent;
    border: 1px solid #f5f5f5;
    color: #fff;
    width: 100%;
    text-transform: uppercase;
    padding: 6px 10px;
    transition: 0.25s ease-in-out;
    margin-top: 30px;
}
.form-submit:hover{
    border: 1px solid #54a0ff;
}