*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    font-family: 'Poppins';
    background-color:  hsl(0, 0%, 86%);
}
/* for ( Chrome, Safari, Edge, Opera) */
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
/* for (Firefox) */
input[type=number] {
  -moz-appearance: textfield;
}
/* *********** section start here ************* */
section{
    width: 760px;
    height: 570px;
    background-color: white;
    margin: 25px 0 20px 295px;
    border-radius: 25px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    border-bottom-right-radius: 175px;
}
.top{
    display: flex;
    gap: 28px;
}
.input-day{
    margin: 55px 0 0 48px;
}
.input-month,.input-year{
    margin-top: 55px;
}
.year-label,.month-label,.day-label{
    font-size: 14px;
    font-weight: bold;
    color: hsl(0, 1%, 44%);
    letter-spacing: 1px;
    padding-bottom: 10px;
}
.day-input,.month-input,.year-input{
    width: 138px;
    height: 65px;
    border: none;
    outline: 0.1px solid hsl(0, 11%, 77%);
    border-radius: 6px;
    font-size: 28px;
    font-weight: 800;
    padding-left: 20px;
    color: hsl(0, 4%, 40%);
    margin-top: 10px;
}
.btn-submit{
    background: transparent;
    border: none;
}
.error-year,.error-month,.error-day{
    font-size: 12px;
    font-style: italic;
    font-weight: 400;
    margin-top: 8px;
    display: none;
}
.middle{
    display: flex;
}
.hr{
    width: 575px;
    margin:45px 0 0  48px;
    height: 0.5px;
    color: hsl(0, 11%, 77%);
}
.btn-submit{
    width: 90px;
    height: 90px;
    background-color: hsl(259, 100%, 65%);
    border: none;
    border-radius: 50%;
}
.bottom{
    margin: -10px 0 26px 50px;
    font-size: 90px;
    font-weight: 700;
    line-height: 95px;
    font-style: italic;
}
.span{
    color: hsl(259, 100%, 65%);
}
/************* footer start here ***************/
footer{
    margin: 0 0 25px 513px;
    font-size: 13px;
    font-weight: bold;
}
footer a{
    color: hsl(259, 100%, 65%);
}