*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins',sans-serif;
}
body{
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px;
  background: linear-gradient(135deg, #71b7e6, #9b59b6);
}
.container{
  max-width: 500px;
  width: 100%;
  background-color: #fff;
  padding: 25px 30px;
  border-radius: 5px;
  box-shadow: 0 5px 10px rgba(0,0,0,0.15);
}
.container .title{
  font-size: 25px;
  font-weight: 500;
  position: relative;
}
.container .title::before{
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3px;
  width: 30px;
  border-radius: 5px;
  background: linear-gradient(135deg, #71b7e6, #9b59b6);
}

.content 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: 100%;
}
form .input-box span.details{
  display: block;
  font-weight: 500;
  margin-bottom: 5px;
}
.user-details .input-box input{
  height: 45px;
  width: 100%;
  outline: none;
  font-size: 16px;
  border-radius: 5px;
  padding-left: 15px;
  border: 1px solid #ccc;
  border-bottom-width: 2px;
  transition: all 0.3s ease;
}
.user-details .input-box select{
  height: 45px;
  width: 100%;
  outline: none;
  font-size: 16px;
  border-radius: 5px;
  padding-left: 15px;
  border: 1px solid #ccc;
  border-bottom-width: 2px;
  transition: all 0.3s ease;
}
.user-details .input-box input:focus,
.user-details .input-box input:valid{
  border-color: #9b59b6;
}
form .gender-details .gender-title{
  font-size: 20px;
  font-weight: 500;
}
form .category{
 display: flex;
 width: 80%;
 margin: 14px 0 ;
 justify-content: space-between;
}
form .category label{
 display: flex;
 align-items: center;
 cursor: pointer;
}
form .category label .dot{
  height: 18px;
  width: 18px;
  border-radius: 50%;
  margin-right: 10px;
  background: #d9d9d9;
  border: 5px solid transparent;
  transition: all 0.3s ease;
}
#dot-1:checked ~ .category label .one,
#dot-2:checked ~ .category label .two,
#dot-3:checked ~ .category label .three{
 background: #9b59b6;
 border-color: #d9d9d9;
}
form input[type="radio"]{
 display: none;
}
form .button{
 height: 45px;
 margin: 35px 0
}
form .button input{
 height: 100%;
 width: 100%;
 border-radius: 5px;
 border: none;
 color: #fff;
 font-size: 18px;
 font-weight: 500;
 letter-spacing: 1px;
 cursor: pointer;
 transition: all 0.3s ease;
 background: linear-gradient(135deg, #71b7e6, #9b59b6);
}
form .button input:hover{
  /* transform: scale(0.99); */
  background: linear-gradient(-135deg, #71b7e6, #9b59b6);
}
@media(max-width: 584px){
 .container{
  max-width: 100%;
}
form .user-details .input-box{
  margin-bottom: 15px;
  width: 100%;
}
form .category{
  width: 100%;
}
.content form .user-details{
  max-height: 300px;
  overflow-y: scroll;
}
.user-details::-webkit-scrollbar{
  width: 5px;
}
}
@media(max-width: 459px){
  .container .content .category{
    flex-direction: column;
  }
}

</style>
<style>
.alert {
  padding: 20px;
  background-color: #f44336;
  color: white;
  opacity: 1;
  transition: opacity 0.6s;
  margin-bottom: 15px;
}

.alert.success {background-color: #04AA6D;}
.alert.info {background-color: #2196F3;}
.alert.warning {background-color: #ff9800;}

.closebtn {
  margin-left: 15px;
  color: white;
  font-weight: bold;
  float: right;
  font-size: 22px;
  line-height: 20px;
  cursor: pointer;
  transition: 0.3s;
}

.closebtn:hover {
  color: black;
}

.error{
  color: #FF0000;
}