body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background: linear-gradient(135deg, #e0f7fa, #ffffff);
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 40px 20px;
      color: #004d40;
    }
    h1 {
      font-size: 3em;
      margin-bottom: 10px;
    }
    h2 {
      font-size: 1.5em;
      color: #00695c;
    }
    p {
      max-width: 600px;
      text-align: center;
      margin-bottom: 30px;
    }
    table {
      border-collapse: collapse;
      margin-bottom: 20px;
      box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }
    td {
      width: 40px;
      height: 40px;
      text-align: center;
      vertical-align: middle;
      border: 1px solid #00796b;
      font-size: 20px;
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
    }
    .highlight {
      background-color: #fff59d;
    }
    .found {
      background-color: #a5d6a7;
      color: #1b5e20;
      font-weight: bold;
    }
    .word-list, .score, .timer {
      margin-bottom: 20px;
      font-size: 18px;
    }
    .word-list span {
      margin: 0 6px;
      font-weight: bold;
    }
    .message {
      font-size: 22px;
      color: #2e7d32;
      font-weight: bold;
      margin-top: 20px;
    }