/* ===== Reset & Base ===== */
    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html,
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background: #f5f5f5;
      color: #333;
      height: 100%;
      overflow: hidden;
      -webkit-overflow-scrolling: touch;
    }

    body {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
    }

    a {
      color: #0066cc;
      text-decoration: none;
    }