body{
    background-color: hsl(0, 0%, 94%);
    font-family: "Poppins", sans-serif;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
#main_container{
    height: 386px;
    width: 450px;
    background-color: white;
    border-radius: 20px;
    border-bottom-right-radius: 30%;
    padding: 30px;
}
.days_heading{
        font-family: "Poppins", sans-serif;
       font-size: 11px;
        color: hsl(0, 0%, 86%); 
       color: hsl(0, 1%, 44%);
       font-weight:  600;
       margin: 0px; 
       margin-bottom: 4px;
}
#main_container div{
    justify-content: space-between;
 }
#dates_input{
    display: grid;
    grid-template-columns: 100px 100px 200px;
    grid-template-rows: 35px 35px;
     padding-bottom: 0px;
}
input{
    width: 80px;
    padding-left: 10px;
    height: 37px;
    border: 1px solid hsl(0, 0%, 86%);
    outline: none;
    border-radius: 5px;
    font-size: 16px;
     color: black;
    font-weight: 550;
}
input:hover{
    border: 1px solid hsl(259, 100%, 65%);
    cursor: pointer;
}
.form{
     width: 448px;
}
#hr_line{
     display: grid;
    grid-template-columns:  381px 69px;
    align-items: center;
}
#arrow_img{
    border-radius: 50%;
    background-color: hsl(259, 100%, 65%);
    padding: 10px;
 }
 #btn_1st{
     border: none;
     border-radius: 50%;
 }
#arrow_img:hover{
    background-color: black;
    cursor: pointer;
}
#user_age{
    display: grid;
     grid-template-columns: 75px 375px;
    grid-template-rows: 75px 75px 95px;
}
.cal_age{
    color: hsl(259, 100%, 65%);
    font-size: 56px ;
    margin: 0px;
    font-style: oblique;
     font-weight: 900;
}
#error1{
    color: red;
    font-size: 7px;
    margin: 0px;
    display: none;
}
#error2{
    color: red;
    font-size: 7px;
    margin: 0px;
    display: none;
}
#error3{
    color: red;
    font-size: 7px;
    margin: 0px;
    display: none;
}
#y_color{
    color: black;
}
#m_color{
    color: black;
}
#d_color{
    color: black;
}

@media ( max-width:550px){
 body{
    background-color: black;
 }
 #hr_line{
    display: block;
     align-items: center;
 }
#arrow_img{
      position: relative;
    /* bottom: 3px; */
    /* left: 3rem; */
}
#btn_1st{
    border: none;
    border-radius: 50%;
    position: relative;
    bottom: 35px;
    left: 7rem;
    /* display: none; */
}
#horizontal{
    margin-top: 65px;
    margin-bottom: 0px;
    padding: 0px;
}
#main_container{
    width: 300px;
}
#dates_input{
    grid-template-columns: 18px 18px 96px;
    width: 300px;
}
#user_age{
    grid-template-columns: 76px 224px ;
    grid-template-rows: 57px 53px 67px;
 }
.cal_age{
    font-size: 40px;
}
.form{
     width: 300px;
}
}

@media ( max-width:380px){
    body{
       background-color: black;
    }
    #hr_line{
       display: block;
        align-items: center;
    }
   #arrow_img{
        position: relative;
   }
   #btn_1st{
    border: none;
    border-radius: 50%;
    position: relative;
    bottom: 35px;
    left: 4.3rem;
}
   #horizontal{
       margin-top: 65px;
       margin-bottom: 0px;
       padding: 0px;
   }
   #main_container{
       width: 206px;
       border-bottom-right-radius: 90px;
   }
   #dates_input{
       grid-template-columns: 0px 0px 57px;
       width: 205px;
   }
   #user_age{
       grid-template-columns: 53px 153px ;
       grid-template-rows: 51px 47px 59px;
    }
   .cal_age{
       font-size: 35px;
   }
   .form{
        width: 205px;
   }
   .form_input{
     width: 48px;
   }
 
   /* #error1{
    color: red;
    font-size: 6px;
    margin: 0px;
    display: none;
}
#error2{
    color: red;
    font-size:5px;
    margin: 0px;
    display: none;
}
#error3{
    color: red;
    font-size: 6px;
    margin: 0px;
    display: none;
} */
}
   @media (max-width: 250px)
   {
    #main_container{
        padding-top: 132px;
    }
   }