body {
    font-family: system-ui, sans-serif;
    background: #0b0d11;
    color: #e6e8eb;
    margin: 0;
    min-height: 100vh;
  }
  
  .wrap {
    max-width: 480px;
    margin: 0 auto;
    padding: 24px 12px;
    display: flex;
    gap: 16px;
    flex-direction: column;
  }
  
  h1, h3 {
    margin: 0 0 8px 0;
    text-align: center;
  }
  
  ol {
    padding-left: 18px;
    margin: 0 0 12px 0;
  }
  
  input, button, textarea {
    font: inherit;
  }
  
  textarea, input {
    width: 100%;
    background: #0f131a;
    color: #e6e8eb;
    border: 1px solid #1f2630;
    border-radius: 12px;
    padding: 12px;
    box-sizing: border-box;
  }
  
  button {
    background: #1c2330;
    color: #e6e8eb;
    border: 1px solid #2a3340;
    border-radius: 12px;
    padding: 14px 18px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.2s;
    width: 100%;
  }
  
  button:active, button:focus {
    background: #26304a;
    outline: none;
  }
  
  .row {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
  }
  
  .checkbox-label {
    font-size: 0.98em;
    display: flex;
    align-items: center;
    gap: 6px;
  }
  
  a {
    color: #7dc4ff;
    word-break: break-all;
  }
  
  code, pre {
    background: #0f131a;
    padding: 2px 6px;
    border-radius: 6px;
    font-size: 0.95em;
    overflow-x: auto;
  }
  
  @media (max-width: 600px) {
    .wrap {
      max-width: 100vw;
      padding: 16px 4vw;
    }
    button, textarea, input {
      font-size: 1.1em;
    }
  }