*{
    margin: 0;
    padding:0;
    text-decoration: none;
    font-family: montserrat;
    box-sizing: border-box;
}
body{
    min-height: 100vh;
    background-image: linear-gradient(120deg, #3498db, #78e08f);
}
.login-form{
    width: 360px;
    background: #f1f1f1;
    height: 580px;
    padding: 80px 40px;
    border-radius: 10px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}
.login-form h1{
    text-align: center;
    margin-bottom: 60px;
}
.txtb{
    border-bottom: 2px solid #adadad;
    position: relative;
    margin: 30px 0;
}
.txtb input{
    font-size: 15px;
    color: #333;
    border: none;
    width: 100%;
    outline: none;
    background: none;
    padding: 0 5px;
    height: 40px;
}
.txtb span::before{
    content: attr(data-placeholder);
    position: absolute;
    top: 50%;
    left : 5px;
    color: #adadad;
    transform : translateY(-50%);
    z-index: -1;
    transition: .5s;
}
.txtb span::after{
    content: '';
    position: absolute;
    width: 0%;
    height: 2px;
    background: linear-gradient(120deg, #3498db, #8e44ad);
    transform: .5s;
}
.focus + span::before{
    top:-5px;
}

.loginbtn{
    display: block;
    width: 100%;
    height: 50px;
    border: none;
    border-radius: 9px;
    background: linear-gradient(120deg, #3498db, #8e44ad, #78e08f);
    background-size: 200%;
    color: #fff;
    outline: none;
    cursor: pointer;
    transition: .5s;
}
.loginbtn:hover{
    background-position: right;
    text-align: center;
    font-size:13px;
}
.bottom-text{
    margin-top: 60px;
    text-align:center;
    font-size: 13px;
}

.session {
    width: 420px;
    height: 220px;
    border-radius: 10px;
    background: white;
    margin-top: 10%;
    left: 52%;
    position: absolute;
    transform: translate(-50%,-50%);
    box-sizing: border-box;
    padding: 70px 30px;
   
}
@media screen and (max-width: 425px) {
    .pics {
        display: none;
    }
    .session{
        top:20%;
    }
}
@media screen and (max-width: 1024px) {

    .session {
        top: 20%;
    }
}

.pics {
    width: 200px;
    margin-left: 80px;
    margin-top: -60px;
}