*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}
body{
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    justify-content: flex-start;
    align-items: center;
    background: linear-gradient(135deg, #34f5c6, #007bce);
    padding: 10px;
}

header{
    width: 100%;
    background: #000;
}

.container{
    max-width: 700px;
    width: 100%;
    background: #fff;
    padding: 25px 30px;
    border-radius: 5px;
}

.container form .user-details {
    display: flex; 
    flex-wrap: wrap;
    justify-content: space-between;
    margin: 20px 0 12px 0;
}

form .user-details .input-box{
    margin-bottom: 15px;
    width: calc(100% / 2 - 20px);
}

.user-details .input-box .details{
    display: block;
    font-weight: 500;
    margin-bottom: 5px;
}

.user-details .input-box input{
    height: 30px;
    width: 100%;
    outline: none;
    border-radius: 5px;
    border: 1px solid #ccc;
    padding-left: 15px;
    font-size: 16px;
    border-bottom-width: 2px;
    transition: all 0.3s ease;
}

.user-details .input-box input:focus,
.user-details .input-box input:valid{
    border-color: #007bce;
}

form .button{
    height: 45px; 
    margin: 45px 0; 
}

form .button input{
    height: 100%;
    width:100%;
    outline: none;
    color: #fff;
    border: none;
    font-size: 18px;
    font-weight: 500;
    border-radius: 5px;
    letter-spacing: 1px;
    background: #007bce;
}

form .button input:hover{
    background:#34f5c6;
    color: #fff;
}

@media (max-width: 584px){
    .container{
    max-width: 100%;
    }
    form .user-details .input-box{
    margin-bottom: 15px;
    width: 100%;
    }
    .container form .user-details{
        max-height: 300px;
        overflow-y: scroll;
    }
    .user-details::-webkit-scrollbar{
        width: 0;

    }
}