username.css

@font-face {
  font-family: hemi;
  src: url(./assets/hemi\ head\ bd\ it.otf);
}
@font-face {
  font-family: contra;
  src: url(./assets/ContrailOne-Regular.ttf);
}
* {
  margin: 0px;
  padding: 0px;
  box-sizing: border-box;
  color: white;
}
body {
  background-image: linear-gradient(
    90deg,
    rgba(2, 0, 36, 1) 0%,
    rgba(45, 50, 173, 1) 35%,
    rgba(0, 212, 255, 1) 100%
  );
  background-repeat: no-repeat;
  height: 100vh;
  width: 100vw;
}
.box-bg {
  position: absolute;
  z-index: -10;
  width: 50px;
  height: 50px;
  border: 4px solid rgb(255, 255, 255, 0.8);
}
.box-bg:nth-child(1) {
  top: 12%;
  left: 40%;
  animation: bg-animate 11s linear infinite;
}
.box-bg:nth-child(2) {
  top: 49%;
  left: 12%;
  animation: bg-animate 10s linear infinite;
}
.box-bg:nth-child(3) {
  top: 85%;
  left: 5%;
  animation: bg-animate 13s linear infinite;
}
.box-bg:nth-child(4) {
  top: 92%;
  left: 90%;
  animation: bg-animate 10s linear infinite;
}
.box-bg:nth-child(5) {
  top: 32%;
  left: 20%;
  animation: bg-animate 12s linear infinite;
}
.box-bg:nth-child(6) {
  top: 62%;
  left: 37%;
  animation: bg-animate 13s linear infinite;
}
.box-bg:nth-child(7) {
  top: 20%;
  left: 90%;
  animation: bg-animate 11s linear infinite;
}
.box-bg:nth-child(8) {
  top: 85%;
  left: 80%;
  animation: bg-animate 12s linear infinite;
}
.box-bg:nth-child(9) {
  top: 12%;
  left: 10%;
  animation: bg-animate 13s linear infinite;
}
.box-bg:nth-child(10) {
  top: 32%;
  left: 80%;
  animation: bg-animate 15s linear infinite;
}
@keyframes bg-animate {
  0% {
    transform: scale(0) translateY(0) rotate(0deg);
    opacity: 0.3;
  }
  100% {
    transform: scale(1) translateY(-100px) rotate(360deg);
    opacity: 1;
  }
}
#form {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: absolute;
  height: 50%;
  width: 50%;
  gap: 16%;
  top: 25%;
  left: 25%;
  background: rgba(255, 255, 255, 0.047);
  /* box-shadow: 0 8px 32px 0 rgba( 31, 38, 135, 0.37 ); */
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
}
#heading {
  font-size: 60px;
  font-family: hemi;
  text-decoration: underline;
}
.input {
  /* margin-top: 7%; */
  display: flex;
  flex-direction: column;
}
#name {
  margin-top: 10px;
  height: 5vh;
  width: 25vw;
  background: rgba(255, 255, 255, 0);
  /* box-shadow: 0 8px 32px 0 rgba( 31, 38, 135, 0.37 ); */
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-radius: 10px;
  border: 1px solid rgb(255, 255, 255);
  padding-left: 12px;
  font-family: contra;
  font-size: 16px;
}
#name:focus {
  outline: none;
  border: 1px solid rgb(255, 0, 0);
}
#button {
  font-size: 16px;
  font-family: hemi;
  width: 100px;
  height: 50px;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12.5px);
  -webkit-backdrop-filter: blur(12.5px);
  border-radius: 5px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  /* visibility: hidden; */
}
#button:hover {
  cursor: pointer;
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.5);
  color: yellow;
}
#button:active {
  background: red;
}

@media (max-width: 450px) {
  #form {
    height: 35%;
    width: 70%;
    top: 32.5%;
    left: 15%;
  }
  /* body{
        height: 100%;
        width: 100%;
    } */
  #heading {
    font-size: 16px;
  }
  #name {
    font-size: 8px;
  }
}
@media (min-width: 450px) and (max-width: 750px) {
  #heading {
    font-size: 25px;
  }
  #name {
    font-size: 12px;
  }
}
@media (min-width: 750px) and (max-width: 1100px) {
  #heading {
    font-size: 35px;
  }
  #name {
    font-size: 16px;
  }
}