style.css

@import url('https://fonts.googleapis.com/css2?family=Lato:wght@400;700&display=swap');

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    font-family:'Lato', sans-serif;
}

.outer-box{
    width: 100vw;
    height: 100vh;
    background: linear-gradient(to top left, #3ed8ff,#a8f5ff);
}

.inner-box{
  width: 400px;
  margin: 0 auto;
  position: relative;
  top:40%;
  transform: translateY(-35%);
  padding: 20px 40px;
  /*background-color: #ffffff09;*/
  background: linear-gradient(to top left, #ffffffff, #ffffff33);
  backdrop-filter: blur(8px);
  border-radius: 8px;
  box-shadow: 2px 2px 5px #16679c;
  z-index: 2;

}

.signup-header h1{
    font-size: 2.5rem;
    color: #212121;
}

.signup-header p{
    font-size: 0.95rem;
    color: #555;
}

.signup-body{
    margin: 20px 0;
}

.signup-body p{
    margin: 10px 0;
}
.signup-body p label{
    display: block;
    font-weight: bold;
}

.signup-body p input{
    width: 100%;
    padding: 10px;
    border: 2px solid #cccc;
    border-radius: 4px;
    font-size: 1rem;
    margin: 4px;
}

.signup-body p input[type="submit"]{
    background-color: #3498db;
    border: none;
    color: white;
    cursor: pointer;
}

.signup-body p input[type="submit"]:hover {
    background-color: #16679c;
    border: none;
    color: white;
    cursor: pointer;
}

.signup-footer p{
    color:#555;
    text-align: center;
}

.signup-footer p a{
    color: #16679c;
}

.circle{
    width:200px;
    height: 200px;
    border-radius: 100px;
    background:linear-gradient(to top right, #ffffff33, #ffffffff);
    position: absolute;
}

.c1{
    top: 100px;
    left: 40px;
}

.c2{
    bottom: 200px;
    right: 50px;
}