body {
    margin: 0;
    padding: 0;
    font-family: Arial;
    background-color: #0344f7;
    overflow: hidden;
}
header {
    font-size: 18px;
    text-align: center;
    width: 250px;
    color: black;
    background-color: white;
    border-radius: 3px;
}
.container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;  
    align-items: center;
}
.logo_inst img {
    width: 180px;
    position: relative;
    bottom: 60px;
}
.box_title,
.box_input {
    width: 420px;
    padding: 10px;
    background-color: #0095cf;
    display: flex;
    position: relative;
    bottom: 50px;
}
.box_input {
    justify-content: center;
    align-items: center;
    height: 330px;
    border-radius: 0 0 10px 10px;
}
.box_title {
    justify-content: center;
    align-items: flex-end;
    height: 80px;
    border-radius: 10px 10px 0 0;
}
.box_title h1 {
    color: white;
    margin: 0;
    padding: 0;
    font-size: 32px;
    font-weight: normal;
    position: relative;
    right: 20px;
}
.input {
    display: flex;
    flex-direction: column;
}
.input button {
    font-size: 18.5px;
    border:0;
    border-radius: 5px;
    width: 300px;
    height: 35px;
    margin-top: 3px;
    margin-bottom: 2px;
}
.input button:hover {
    color: white;
    background-color: #0344f7;
}
.icon_return img{
    width: 40px;
    position: relative;
    bottom: 30px;
    right: 50px;
}
@media(min-width:250px) and (max-width:299px){
    .box_input,
    .box_title {
        margin-left:45px;
        margin-right:5px;
    }
    .logo_inst img {
        width: 120px;
        position: relative;
        bottom: 60px;
    }
    .input button {
      width: 280px;
      font-size: 16px;
    }
    .icon_return img {
        position: relative;
        left: 5px;
    }
}
@media(min-width:300px) and (max-width:350px){
    .box_input,
    .box_title {
        margin-left:5px;
        margin-right:5px;
    }
    .logo_inst img {
        width: 120px;
        position: relative;
        bottom: 60px;
    }
    .input button {
      width: 250px;
      font-size: 14px;
    }
    .icon_return img{
        position: relative;
        left: 2px;
    }
}
@media(max-width:575.98px){
    .box_input,
    .box_title {
        width: 320px;
        position: relative;
        bottom: 50px;
    }
    .logo_inst img {
        width: 130px;
        position: relative;
        bottom: 60px;
    }
    .icon_return img{
        position: relative;
        bottom: 30px;
        right: 12px;
        width: 45px;
    }
    .box_title h1 {
        position: relative;
        top: 10px;
        right: 24px;
    }
}
@media (min-width: 768px) and (max-width:991.98px) {
    header {
        width: 300px;
        font-size: 22px;
    }
    .box_input,
    .box_title {
        width: 500px;
        margin-left:5px;
        margin-right:5px;
    }
    .box_input {
        height: 380px; 
    }
    .box_title {
        height: 120px;
    }
    .box_title h1{
        font-size: 38px;
    }
    .input button {
        width: 350px;
        height: 45px;
        font-size: 20px;
    }
    .icon_return img{
        position: relative;
        bottom: 65px;
        right: 70px;
        font-size: 45px;
    }
}
@media (min-width:992px) and (max-width: 1199.98px) {
    header {
        width: 380px;
        font-size: 29px;
    }
    .box_input,
    .box_title {
        width: 700px;
        margin-left:5px;
        margin-right:5px;
    }
    .box_input {
        height: 450px; 
    }
    .box_title {
        height: 180px;
    }
    .box_title h1 {
        font-size: 55px;
        position: relative;
        right: 28px;
    }
    .input button {
        width: 450px;
        height: 55px;
        font-size: 28px;
    }
    .icon_return img{
        width: 65px;
        position: relative;
        bottom: 105px;
        right: 95px;
    }
}