body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(120deg, #e0f7fa 0%, #f1f8e9 100%);
    margin: 0;
    padding: 0;
  }
  
  h1, h2 {
    color: #333;
  }
  
  .expenditure-form.card {
    max-width: 800px;
    margin: 30px auto;
    padding: 32px 28px;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 4px 18px rgba(33,150,243,0.10);
    border: 1.5px solid #e3eafc;
  }
  
  .expenditure-form h2 {
    color: #2196f3;
    margin-top: 24px;
    margin-bottom: 10px;
    font-size: 1.3em;
    border-left: 4px solid #21f336;
    padding-left: 10px;
  }
  
  .section {
    display: flex;
    flex-wrap: wrap;
    gap: 18px 32px;
    margin-bottom: 18px;
    background: #f8fafc;
    border-radius: 8px;
    padding: 18px 12px 8px 12px;
    box-shadow: 0 1px 4px rgba(33,150,243,0.04);
  }
  
  .section label {
    flex: 1 1 220px;
    font-weight: 500;
    color: #2a5d84;
    margin-bottom: 8px;
  }
  
  .section input[type="number"] {
    width: 100%;
    padding: 8px 10px;
    border: 1.5px solid #b6d0f7;
    border-radius: 6px;
    font-size: 1em;
    margin-top: 4px;
    background: #fafdff;
    transition: border-color 0.2s;
  }
  
  .section input[type="number"]:focus {
    border-color: #2196f3;
    outline: none;
  }
  
  .expenditure-submit-btn {
    background: linear-gradient(90deg, #21f336 0%, #2196f3 100%);
    color: #fff;
    font-weight: bold;
    font-size: 1.1em;
    padding: 12px 36px;
    border: none;
    border-radius: 8px;
    margin-top: 18px;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(33,150,243,0.08);
    transition: background 0.2s, transform 0.2s;
  }
  
  .expenditure-submit-btn:hover {
    background: linear-gradient(90deg, #2196f3 0%, #21f336 100%);
    transform: translateY(-2px) scale(1.04);
  }
  
  #reviewPanel.card {
    max-width: 800px;
    margin: 32px auto;
    background: #f8fafc;
    border-radius: 14px;
    box-shadow: 0 4px 18px rgba(33,150,243,0.10);
    border: 1.5px solid #e3eafc;
    padding: 32px 28px;
  }
  #reviewPanel h3 {
    color: #2196f3;
    margin-bottom: 18px;
    text-align: center;
  }
  #reviewList h4 {
    color: #2a5d84;
    margin-top: 18px;
    margin-bottom: 8px;
    font-size: 1.1em;
    border-left: 4px solid #21f336;
    padding-left: 10px;
  }
  #reviewList ul {
    list-style: none;
    padding-left: 0;
  }
  #reviewList li {
    margin-bottom: 8px;
    background: #fff;
    border-radius: 6px;
    padding: 8px 14px;
    box-shadow: 0 1px 4px rgba(33,150,243,0.04);
    display: flex;
    flex-direction: column;
  }
  .review-answer {
    color: #2196f3;
    font-weight: 500;
    margin-left: 8px;
  }
  #editBtn, #submitBtn {
    margin: 18px 8px 0 0;
    padding: 10px 28px;
    border-radius: 8px;
    border: none;
    font-size: 1em;
    font-weight: bold;
    background: #2196f3;
    color: #fff;
    cursor: pointer;
    transition: background 0.2s;
  }
  #editBtn:hover, #submitBtn:hover {
    background: #21f336;
    color: #222;
  }
  
  .expenditure-results-panel.card {
    max-width: 800px;
    margin: 32px auto;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 4px 18px rgba(33,150,243,0.10);
    border: 1.5px solid #e3eafc;
    padding: 32px 28px;
  }
  #results {
    font-size: 1.1em;
    color: #2a5d84;
    margin-bottom: 18px;
  }
  canvas#expenseChart {
    display: block;
    margin: 0 auto;
    max-width: 340px;
    background: #fafdff;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(33,150,243,0.08);
  }