body {
  font-family: 'Montserrat', sans-serif;
  background: #d4f8d4;
  color: #2c2c2c;
}

.nav-logo{
  width: 50px;
}

.head h1 {
  margin: 30px 0;
  font-weight: 700;
}

#body {
  background: #fff5cc;
  border: 3px solid #2f2d2a;
  border-radius: 15px;
  padding: 25px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  margin: 30px auto;
  max-width: 600px;
}

label {
  font-weight: 600;
}

.form-control {
  border: 2px solid #2f2d2a;
  border-radius: 10px;
}

#calculate_button {
  display: block;
  margin: 20px auto;
  background: #fce181;
  border: 2px solid #2f2d2a;
  border-radius: 10px;
  padding: 10px 25px;
  font-weight: 600;
}

#calculate_button:hover {
  background: #ffef99;
  transform: scale(1.05);
}

#output, #output1, #output2 {
  background: #fff;
  border: 2px solid #2f2d2a;
  border-radius: 10px;
  padding: 15px;
  margin: 15px auto;
  max-width: 600px;
  text-align: center;
  font-weight: 600;
}

.footer {
  background: #fff5cc;
  text-align: center;
  padding: 15px;
  letter-spacing: 2px;
  border-top: 2px solid #2f2d2a;

}