.bodys {
      font-family: sans-serif;
      max-width: 700px;
      margin: 2rem auto;
      padding: 1rem;
      border: 1px solid #ccc;
      border-radius: 8px;
    }

    .contrast-row {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      flex-wrap: wrap;
      margin-bottom: 1rem;
    }

    .contrast-row label {
      margin: 0;
      font-weight: bold;
    }

    .contrast-row input[type="text"] {
      width: 100px;
      padding: 0.25rem;
    }

    .contrast-row button {
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      padding: 0.25rem 0.5rem;
    }

    .contrast-row button:focus {
      outline: 2px solid blue;
    }

    .contrast-result {
      margin-top: 2rem;
      padding: 1rem;
      border: 1px solid #ddd;
      border-radius: 4px;
      background: #f9f9f9;
    }

    .contrast-warning {
      color: darkred;
      font-weight: bold;
      margin-top: 1rem;
    }

    .contrast-ok {
      color: green;
      font-weight: bold;
      margin-top: 1rem;
    }

    .contrast-preview {
      margin-top: 1rem;
      padding: 1rem;
      border-radius: 4px;
    }

    .contrast-info {
      margin-top: 1.5rem;
      padding: 1rem;
      background-color: #f1f1f1;
      border-left: 4px solid #888;
      border-radius: 4px;
      font-size: 0.95rem;
      line-height: 1.5;
      color: #333;
    }

    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0,0,0,0);
      white-space: nowrap;
      border: 0;
    }

    @media (max-width: 600px) {
      .contrast-row {
        flex-direction: column;
        align-items: flex-start;
      }

      .contrast-row input,
      .contrast-row button {
        width: 100%;
      }
    }