@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}
body{
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: #e67b17;
    gap: 20px;
}
.input-kullanici, .input-sifre{
    position: relative;
}
.input-kullanici input{
    width: 300px;
    height: 60px;
    font-size: 16px;
    border: 2px solid #FFF;
    border-radius: 5px;
    padding: 0 15px;
    color: #FFF;
    outline: none;
    background: transparent;
}
.input-kullanici label{
    position: absolute;
    top: 50%;
    left: 15px;
    transform: translateY(-50%);
    color: #FFF;
    font-size: 17px;
    pointer-events: none;
    transition: 0.4s;
}
.input-sifre input{
    width: 300px;
    height: 60px;
    font-size: 16px;
    border: 2px solid #FFF;
    border-radius: 5px;
    padding: 0 15px;
    color: #FFF;
    outline: none;
    background: transparent;
}
.input-sifre label{
    position: absolute;
    top: 50%;
    left: 15px;
    transform: translateY(-50%);
    color: #FFF;
    font-size: 17px;
    pointer-events: none;
    transition: 0.4s;
}
input:focus{
    border: 3px solid #dfdfdf;
}
input:focus ~ label,
input:valid ~ label{
    top: 0;
    left: 15px;
    font-size: 16px;
    padding: 0 10px;
    border-radius: 5px;
    color: #000;
    background: #dfdfdf;
}