body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100vh;
  background:darksalmon; /* Gradient background */
  color: #fff;
}

#calculator-container {
  text-align: center;
  background-color: yellow; /* Semi-transparent white background */
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
  margin: 20px;
}

h2 {
  font-size: 2.5em;
  color: #333;
}

label {
  display: block;
  margin-bottom: 10px;
  font-size: 1.5em;
  color: #555;
}

input {
  width: 100%;
  padding: 12px;
  margin-bottom: 20px;
  border: none;
  border-radius: 8px;
  background-color: #f5f5f5; /* Light gray background */
  color: #333;
}

button {
  background-color: #ff5e62; /* Coral red */
  color: #fff;
  padding: 15px 30px;
  font-size: 1.5em;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s;
}

button:hover {
  background-color: #44bce4; /* Darker shade on hover */
}

#result {
  font-size: 2em;
  margin-top: 20px;
  color: #333;
}

footer {
  text-align: center;
  background-color: #394240; /* Deep blue-gray */
  padding: 15px;
}