body {
      font-family: 'Segoe UI', sans-serif;
      background: #1a1a2e;
      color: #fff;
      padding: 40px;
    }

    h1 {
      color: #fff;
      font-size: 2.5em;
      margin-bottom: 20px;
    }

    input, button {
      padding: 10px;
      margin: 10px 0;
      width: 100%;
      border: none;
      border-radius: 5px;
      font-size: 1em;
    }

    button {
      background: #00eaff;
      color: #000;
      font-weight: bold;
      cursor: pointer;
    }

    .preview-card {
      background: #222;
      padding: 10px;
      border-radius: 5px;
      display: flex;
      justify-content: space-between;
      margin: 10px 0;
    }

    .actions button {
      margin-left: 10px;
    }

    .hidden {
      display: none;
    }