* { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: 'Inter', sans-serif;
      background: #f0f4f8;
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .card {
      background: #fff;
      border-radius: 20px;
      box-shadow: 0 8px 40px rgba(26,35,50,.13);
      padding: 52px 40px;
      text-align: center;
      max-width: 340px;
      width: 90%;
    }
    .apt-label {
      font-size: .72rem;
      font-weight: 500;
      color: #8898aa;
      text-transform: uppercase;
      letter-spacing: .12em;
      margin-bottom: 8px;
    }
    .apt-number {
      font-family: 'Montserrat', sans-serif;
      font-weight: 800;
      font-size: 4.5rem;
      color: #e8a020;
      line-height: 1;
      margin-bottom: 40px;
    }
    .btn {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      width: 100%;
      padding: 16px 20px;
      border-radius: 12px;
      font-family: 'Inter', sans-serif;
      font-weight: 600;
      font-size: 1rem;
      cursor: pointer;
      border: none;
      text-decoration: none;
      transition: opacity .2s;
      color: #fff;
      background: #1a2332;
    }
    .btn:hover { opacity: .85; }