body {
    font-family: 'Segoe UI', sans-serif;
    background: #535502;
    color: #333;
    display: flex;
    justify-content: center;
    padding: 2rem;
    margin: 0;
  }
  
  .calculator-container {
    background: rgb(204, 85, 75);
    padding: 2rem;
    border-radius: 12px;
    max-width: 500px;
    width: 100%;
    box-shadow: 0 0 10px rgba(0,0,0,0.05);
  }
  
  h1 {
    font-size: 1.6rem;
    text-align: center;
    margin-bottom: 2rem;
  }
  
  .calc-section {
    margin-bottom: 2rem;
    border-top: 1px solid #eee;
    padding-top: 1rem;
  }
  
  .calc-section:first-of-type {
    border-top: none;
    padding-top: 0;
  }
  
  .calc-section h2 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
  }
  
  input, select {
    width: 100%;
    padding: 0.5rem;
    margin-bottom: 0.75rem;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1rem;
    box-sizing: border-box;
  }
  
  button {
    width: 100%;
    padding: 0.6rem;
    background: #4a90e2;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s;
  }
  
  button:hover {
    background: #357ABD;
  }
  
  p {
    margin-top: 0.5rem;
    font-weight: bold;
  }