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

body{
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: #01050c;
}

.login{
    background-color:black;
    border-radius: 10px;
    width: 400px;
    padding: 40px;
}

.login, h2{
    margin-bottom: 30px;
    font-size: 30px;
    color: #03f40fc5 ;
    text-align: center;
}

.login .box-user{
    position: relative;
}

.login .box-user input{
    width: 100%;
    padding:10px 0;
    outline: none;
    border: 0;
    background: transparent;
    border-bottom: 1px solid  #ffffff;
    color: #fff;
    font-size: 16px;
    margin-bottom: 30px;
}

.login .box-user label{
    position: absolute;
    top: 0;
    left: 0;
    padding: 10px 0;
    color: #fff;
    font-size: 16px;
    pointer-events: none;
    transition: .5s;
}

.login .box-user input:focus~label, .login .box-user input:valid~ label{
    top: -20px;
    left:  0;
    color:#03f40fc5;
    font-size: 12px;
}

.forget{
    font-size: 12px;
    color: #5b6b8b;
    float: right;
}

.btn{
    position: relative;
    display: inline-block;
    padding: 12px 20px;
    color: #03f40fc5;
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 4px; 
    font-weight: 700;
    margin-top: 20px;
    transition: .5s;
    margin-top: -10px;
    float: left;
    overflow: hidden;
    background-color:black;
    border: #fff;
}

.btn:hover{
    background: #03f40fc5;
    border-radius: 5px;
    color: #172031;
}

.btn span{
    position: absolute;
    display: block;
}
.btn span:nth-child(1){
    top: 0;
    left: -100%;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, #03f40fc5);
    animation: btn1 1s linear infinite;
}

@keyframes btn1{
    0%{
        left: -100%;
    }
    50%,
    100%{
        left: 100%;
    }
}

.btn span:nth-child(2){
    top: -100%;
    right: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, transparent,#03f40fc5);
    animation: btn2 1s linear infinite;
    animation-delay: .20s;
}

@keyframes btn2{
    0%{
        top: -100%;
    }
    50%,
    100%{
        top: 100%;
    }
}

.btn span:nth-child(3){
    bottom: 0;
    right: -100%;
    width: 100%;
    height: 4px;
    background: linear-gradient(270deg, transparent,#03f40fc5);
    animation: btn3 1s linear infinite;
    animation-delay: .45s;
}

@keyframes btn3{
    0%{
        right: -100%;
    }
    50%,
    100%{
        right: 100%;
    }
} 

.btn span:nth-child(4){
    bottom: -100%;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(26deg, transparent, #03f40fc5);
    animation: btn4 1s linear infinite;
    animation-delay: .70s;

}

@keyframes btn4{
    0%{
        bottom: -100%;
    }
    50%,
    100%{
        bottom: 100%;
    }

}

@media(max-width: 405px){
    .login{
        width: 90%;

    }

}

@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@1,300&display=swap');

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

body{
    height: 100vh;
}

nav.menu-lateral{
    width: 66px;
    height: 100%;
    background-color: #08090a;
    padding: 40px 0 40px 1% ;
    box-shadow: 4px 0 0 rgba(0, 128, 0, 0.856) ;
    
    position: fixed;
    top: 0;
    left: 0;
    overflow: hidden;
    transition: .5s;
}

nav.menu-lateral.expandir{
    width: 300px;
}
.btn-expandir{
    width: 100%;
    padding-left: 10px ;
}

.btn-expandir > i{
    color: antiquewhite;
    font-size: 30px;
    cursor: pointer;
}

ul{
    height: 100%;
    list-style-type: none;
}

ul li.item-menu{
    transition: .2s;    
}

ul li.ativo{
    background-color: rgba(0, 128, 0, 0.856);
    border-top-left-radius: 15px;
    border-bottom-left-radius: 15px;
}

ul li.item-menu:hover{
    background: rgba(0, 128, 0, 0.856);
}

ul li.item-menu a{
    color: aliceblue;
    text-decoration: none;
    font-size: 20px;
    padding: 20px 4%;
    display: flex;
    margin-bottom: 20px;
    line-height: 30px;
}

ul li.item-menu a .text-link{
   margin-left: 70px;
   transition: .5s;
}

nav.menu-lateral.expandir .text-link{
    margin-left: 40px;
}



ul li.item-menu a .icon > i{
    font-size: 20px;
}

.bem{
    color: brown;
}