.bp-calculator {
  max-width: 600px;
  margin: 0 auto;
  padding: 20px;
  border: 1px solid #ccc;
  border-radius: 10px;
  text-align: center;
  background: #f9f9f9;
}

h1 {
  color: #333;
	font-size: 32px;
}

label {
  display: block;
  margin: 10px 0 5px;
  font-weight: bold;
}

input {
  width: 100%;
  padding: 10px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

button {
  padding: 10px 20px;
  background: #007BFF;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background: #0056b3;
}

#result {
  margin-top: 20px;
  padding: 15px;
  border-radius: 5px;
  font-weight: bold;
  font-size: 1.2em;
}

/* Result Colors */
.low { color: blue; border: 2px solid blue; }
.normal { color: green; border: 2px solid green; }
.pre-hypertension { color: #ffcc00; border: 2px solid #ffcc00; }
.stage1 { color: #ff6666; border: 2px solid #ff6666; }
.stage2 { color: darkred; border: 2px solid darkred; }