/* base styles */
body {
  background: url(img/Cave.jpg) no-repeat;
  background-size: cover;
  overflow-x: hidden;
  font-family: "Arial";
  background: cover;
  color: white;
}

header {
  padding-bottom: 10px;
}

.container {
  background-color: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(5px);
  margin-top: 200px;
  width: 300px;
  margin: auto;
  padding: 50px 50px;
  border-radius: 45px;
}

.container h3,
h4,
p {
  text-align: center;
  font-weight: 10;
}

h2 {
  text-align: center;
  padding-top: 20px;
  font-weight: 50;
}

h1 {
  font-weight: 500px;
  text-align: center;
}

input {
  width: 150px;
  height: 40px;
  border-radius: 25px;
  align-items: center;
  padding-left: 50px;
  background-color: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(5px);
  border: white;
  border-width: 1px;
}

.input-box {
  text-align: center;
  color: white;
  font-size: 30px;
}

.btn {
  text-align: center;
  padding-top: 20px;
}

button {
  width: 85px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(5px);
  border-radius: 20px;
  color: white;
}

.bmi {
  font-size: 20px;
}

.result {
  font-size: 15px;
}