/* General Layout and Typography */
  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    margin: 10px;
    font-size: 16px; /* Larger base font for mobile */
  }

  .container-fluid > header h1 {
    font-size: 1.5rem;
    padding: 10px 0;
  }
  
  .container-fluid > header h2 {
    font-size: 1.2rem;
  }
  
  .container-fluid > section h2 {
    font-size: 1.1rem;
  }

  button {
    font-size: 1.1rem;
    padding: 10px 20px;
    margin: 5px;
    border-radius: 8px;
  }
  
  fieldset {
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 8px;
  }
  
  legend {
    font-size: 1.3rem;
    width: auto;
    padding: 0 10px;
    font-weight: bold;
  }

  input[type="text"], input[type="number"], select {
    font-size: 1.1rem;
    padding: 10px;
    margin: 8px 0;
    width: 100%;
    box-sizing: border-box;
  }
  
  .hidden-section {
    display: none;
    margin-top: 20px;
  }
  
  .mapping {
    margin-bottom: 30px;
    overflow-x: auto; /* Allow table scrolling on small screens */
  }
  
  .title {
    font-weight: bold;
    margin-bottom: 10px;
    text-align: center;
    font-size: 1.2rem;
  }
  
  /* Tables */
  table {
    border-collapse: collapse;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    background-color: white;
  }
  
  th, td {
    border: 1px solid #dee2e6;
    padding: 12px 8px;
    text-align: center;
  }
  
  th {
    background-color: #f8f9fa;
    font-weight: bold;
  }
  
  /* Cable Color Classes - Restoring Colored Layout */
  .cable {
    font-weight: bold;
    background-color: #e9ecef;
  }
  
  .color-blue { background-color: #007bff; color: white; font-weight: bold; }
  .color-brown { background-color: #795548; color: white; font-weight: bold; }
  .color-orange { background-color: #fd7e14; color: white; font-weight: bold; }
  .color-green { background-color: #28a745; color: white; font-weight: bold; }
  
  /* Control & Layout Specific Styles */
  .channelTest {
    margin-left: 0;
    width: 100%;
  }
  
  #clientConnectButton {
    width: 100%;
    margin-bottom: 10px;
  }
  
  #connectionPanel {
    padding: 10px;
    display: flex;
    flex-direction: column;
  }
  
  #deviceName {
    font-family: monospace;
    font-size: 125%;
    float: left;
  }
  
  .knobLabel {
    margin-right: 0.8em;
  }
  
  .knobTextValue {
    width: 3.5em;
    text-align: right;
    font-family: monospace;
  }
  
  #logDisplay {
    color: #eee;
    background-color: #222;
    resize: none;
  }
  
  #OtaBootloadMode {
    float: left;
    font-size: 110%;
    margin-left: 2em;
    background-color: #ea5;
  }
  
  /* Panels */
  .panel {
    width: 100%;
    max-width: 26em;
    border: 1px solid #bbb;
    margin: 0 0 15px 0;
    padding: 1em;
    border-radius: 8px;
  }
  
  .panel button {
    padding: 4pt;
    margin-right: 0.3em;
  }
  
  .panel legend {
    font-size: 120%;
  }
  
  .panel table {
    margin-top: 1.5ex;
  }
  
  .panel-clear {
    clear: both;
  }