*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: system-ui, sans-serif;
      background: linear-gradient(135deg, #0f1117 0%, #1a1f2e 100%);
      color: #e0e0e0;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }
    .container {
      width: 100%;
      max-width: 800px;
      text-align: center;
    }
    h1 {
      font-size: 2.5rem;
      margin-bottom: 12px;
      color: #fff;
      font-weight: 700;
    }
    .subtitle {
      font-size: 1.1rem;
      color: #8b9fd4;
      margin-bottom: 40px;
      line-height: 1.6;
    }
    .cards {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-bottom: 40px;
    }
    @media (max-width: 600px) {
      h1 { font-size: 1.8rem; }
      .cards { grid-template-columns: 1fr; }
    }
    .card {
      background: rgba(28, 31, 46, 0.8);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(139, 159, 212, 0.2);
      border-radius: 12px;
      padding: 32px 24px;
      transition: all .3s ease;
      cursor: pointer;
    }
    .card:hover {
      border-color: rgba(139, 159, 212, 0.5);
      background: rgba(28, 31, 46, 1);
      transform: translateY(-4px);
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    }
    .card-icon {
      font-size: 3.5rem;
      margin-bottom: 16px;
    }
    .card h2 {
      font-size: 1.5rem;
      margin-bottom: 12px;
      color: #fff;
    }
    .card p {
      font-size: 0.95rem;
      color: #aaa;
      margin-bottom: 20px;
      line-height: 1.6;
    }
    .btn {
      display: inline-block;
      padding: 12px 28px;
      border-radius: 8px;
      border: none;
      cursor: pointer;
      font-size: 1rem;
      font-weight: 600;
      transition: all .2s;
      text-decoration: none;
      color: #fff;
    }
    .btn-primary {
      background: linear-gradient(135deg, #4a6cf7 0%, #3a5ce6 100%);
    }
    .btn-primary:hover {
      transform: scale(1.05);
      box-shadow: 0 6px 20px rgba(74, 108, 247, 0.3);
    }
    .btn-secondary {
      background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
    }
    .btn-secondary:hover {
      transform: scale(1.05);
      box-shadow: 0 6px 20px rgba(124, 58, 237, 0.3);
    }
    .info-box {
      background: rgba(26, 58, 34, 0.3);
      border-left: 4px solid #4caf50;
      border-radius: 8px;
      padding: 16px;
      margin-top: 32px;
      text-align: left;
      font-size: 0.9rem;
      line-height: 1.6;
    }
    .info-box h3 {
      color: #4caf50;
      margin-bottom: 8px;
      font-size: 1rem;
    }
    .feature-list {
      list-style: none;
      padding: 0;
      margin: 8px 0;
    }
    .feature-list li {
      padding: 4px 0;
      padding-left: 20px;
      position: relative;
    }
    .feature-list li::before {
      content: '✓';
      position: absolute;
      left: 0;
      color: #4caf50;
      font-weight: bold;
    }
    .footer {
      font-size: 0.85rem;
      color: #666;
      margin-top: 40px;
    }