/* Page background */
body {
  font-family: Arial, sans-serif;
  background: #f4f6f9;
  margin: 0;
  padding: 0;
  text-align: center;
}

/* Header */
header {
  background: #2c3e50;
  color: white;
  padding: 20px;
}

header h1 {
  margin: 0;
}

header p {
  margin-top: 5px;
  font-size: 14px;
}

/* Form box */
form {
  background: white;
  max-width: 400px;
  margin: 30px auto;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
}

/* Labels */
label {
  display: block;
  text-align: left;
  margin-top: 10px;
  font-weight: bold;
}

/* Inputs */
input, select {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

/* Button */
button {
  margin-top: 15px;
  width: 100%;
  padding: 10px;
  background: #27ae60;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 16px;
}

button:hover {
  background: #219150;
}

/* Result box */
#result {
  margin-top: 20px;
  font-size: 18px;
  font-weight: bold;
  color: #2c3e50;
}