.section-header {
    background: #f0f4fa;
    border-left: 4px solid #6699cc;
    padding: 10px 12px;
    margin: 20px 0 15px;
    font-weight: bold;
    font-size: 16px;
    color: #003366;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .section-header::before {
    content: "🛠️";
    font-size: 18px;
  }

  .inline-fields {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 15px;
  }

  .inline-fields .form-group {
    display: flex;
    flex-direction: column;
    min-width: 200px;
    max-width: 260px;
  }

  label {
    margin: 0 0 4px;
    font-weight: bold;
    color: #333;
  }

  input[type="number"],
  select {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid #bbb;
    border-radius: 4px;
    font-size: 14px;
    background: #fff;
    box-sizing: border-box;
  }

  #valveMessage {
    background: #fffbe6;
    padding: 8px 12px;
    border: 1px solid #e0c800;
    border-radius: 4px;
    font-weight: bold;
    color: #333;
    height: 41px;
    display: flex;
    align-items: center;
  }

  #resultBlock {
    background: #eef5ff;
    padding: 14px 18px;
    border: 1px solid #aaccee;
    border-radius: 6px;
    margin-top: 20px;
    max-width: 500px;
  }

  #resultBlock span {
    font-weight: bold;
    color: #003366;
  }

  #resultBlock b {
    display: block;
    margin-top: 6px;
    font-size: 15px;
    color: #004488;
  }

  .form-row {
    margin-bottom: 12px;
    display: flex;
    flex-direction: column;
    max-width: 280px;
  }

  #validationBlock {
    background: #f6f6f6;
    border-left: 4px solid #bbb;
    padding: 10px 14px;
    margin-top: 15px;
    font-weight: bold;
    color: #444;
    border-radius: 4px;
  }

  canvas {
    border: 1px solid #ddd;
    border-radius: 6px;
    background: #fff;
  }