body {
      background:radial-gradient(circle at 50% 35%,#003b66 0,#001a33 35%,#000814 75%,#00040a 100%);
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      height: 100vh;
      margin: 0;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color:#eaf6ff;text-shadow:0 0 8px #00bfff55;
      text-align: center;
    }
    h1 {
      margin-bottom: 20px;
    }
    input[type="number"] {
      padding: 10px;
      border-radius: 8px;
      border: none;
      font-size:16px;width:100px;box-shadow:0 0 12px #008cff55;
      text-align: center;
    }
        button {
      margin-top: 15px;
      padding: 10px 20px;
      border: none;
      border-radius: 8px;
      background:#00bfff;color:#00101c;box-shadow:0 0 10px #00bfff,0 0 25px #008cff;color:#00101c;box-shadow:0 0 10px #00bfff,0 0 25px #008cff;
      color:#eaf6ff;text-shadow:0 0 8px #00bfff55;
      font-size: 16px;
      cursor: pointer;
      transition:.2s;box-shadow:0 0 12px #00bfff55;
    }
    button:hover {
      background:#00bfff;color:#00101c;box-shadow:0 0 10px #00bfff,0 0 25px #008cff;
    }
    .message {
      margin-top: 20px;
      font-size: 20px;
      font-weight: bold;
    }
    .reset {
      margin-top: 20px;
      font-size: 14px;
      cursor: pointer;
      text-decoration: underline;
    }

  75% {
    top: 80%;
    left: 80%;
  }
  100% {
    top: 10%;
    left: 5%;
  }


.background-text {
  position: absolute;
  font-size: 50px;
  color: rgba(0, 0, 0, 0.1);
  animation: moveText 10s infinite alternate ease-in-out;
  z-index: -1;
}

@keyframes moveText {
  0% {
    top: 10%;
    left: 5%;
  }
  25% {
    top: 30%;
    left: 70%;
  }
  50% {
    top: 60%;
    left: 20%;
  }
  75% {
    top: 80%;
    left: 80%;
  }
  100% {
    top: 10%;
    left: 5%;
  }
}