* { box-sizing: border-box; margin: 0; padding: 0; }
  body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: #0a0a0f; color: #e2e8f0; line-height: 1.7; }
  header { background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%); border-bottom: 1px solid #2d3748; padding: 1rem 0; }
  .nav-inner { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; display: flex; justify-content: space-between; align-items: center; }
  .logo { font-size: 1.4rem; font-weight: 700; color: #63b3ed; text-decoration: none; }
  nav a { color: #a0aec0; text-decoration: none; margin-left: 1.5rem; font-size: 0.9rem; }
  nav a:hover { color: #63b3ed; }
  .hero { background: linear-gradient(135deg, #1a1a2e 0%, #0d1b2a 100%); padding: 3rem 1.5rem; text-align: center; }
  .hero-inner { max-width: 800px; margin: 0 auto; }
  .breadcrumb { font-size: 0.85rem; color: #718096; margin-bottom: 1rem; }
  .breadcrumb a { color: #63b3ed; text-decoration: none; }
  h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 800; color: #f7fafc; margin-bottom: 1rem; line-height: 1.25; }
  .meta { font-size: 0.85rem; color: #718096; margin-bottom: 1.5rem; }
  .intro-text { font-size: 1.1rem; color: #a0aec0; max-width: 700px; margin: 0 auto; }
  .content { max-width: 820px; margin: 0 auto; padding: 2.5rem 1.5rem; }
  h2 { font-size: 1.5rem; font-weight: 700; color: #f7fafc; margin: 2.5rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid #2d3748; }
  h3 { font-size: 1.15rem; font-weight: 600; color: #e2e8f0; margin: 1.5rem 0 0.5rem; }
  p { color: #a0aec0; margin-bottom: 1rem; }
  .step-box { background: #1a1a2e; border: 1px solid #2d3748; border-left: 4px solid #63b3ed; border-radius: 8px; padding: 1.2rem 1.4rem; margin: 1rem 0; }
  .step-number { display: inline-block; background: #63b3ed; color: #0a0a0f; width: 28px; height: 28px; border-radius: 50%; text-align: center; line-height: 28px; font-weight: 700; font-size: 0.85rem; margin-right: 0.5rem; }
  .step-title { font-weight: 700; color: #f7fafc; }
  .step-box p { margin-top: 0.5rem; margin-bottom: 0; }
  .app-card { background: #1a1a2e; border: 1px solid #2d3748; border-radius: 10px; padding: 1.2rem; margin: 0.8rem 0; display: flex; gap: 1rem; align-items: flex-start; }
  .app-icon { font-size: 2rem; flex-shrink: 0; }
  .app-info h3 { margin: 0 0 0.3rem; }
  .app-info p { margin: 0; font-size: 0.9rem; }
  .badge { display: inline-block; padding: 0.2rem 0.6rem; border-radius: 4px; font-size: 0.75rem; font-weight: 600; margin-left: 0.4rem; }
  .badge-free { background: #276749; color: #9ae6b4; }
  .badge-paid { background: #744210; color: #fbd38d; }
  .badge-best { background: #2c5282; color: #90cdf4; }
  .tip-box { background: #1c3a2b; border: 1px solid #276749; border-radius: 8px; padding: 1rem 1.2rem; margin: 1.5rem 0; }
  .tip-box::before { content: "💡 Tips: "; font-weight: 700; color: #68d391; }
  .warning-box { background: #3c1f1f; border: 1px solid #c53030; border-radius: 8px; padding: 1rem 1.2rem; margin: 1.5rem 0; }
  .warning-box::before { content: "⚠️ Obs: "; font-weight: 700; color: #fc8181; }
  table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.9rem; }
  th { background: #1a1a2e; color: #63b3ed; text-align: left; padding: 0.75rem 1rem; border-bottom: 2px solid #2d3748; }
  td { padding: 0.65rem 1rem; border-bottom: 1px solid #1e2636; color: #a0aec0; }
  tr:hover td { background: #161630; }
  .cta-section { background: linear-gradient(135deg, #1e3a5f 0%, #1a1a2e 100%); border: 1px solid #2d5986; border-radius: 12px; padding: 2rem; margin: 2.5rem 0; text-align: center; }
  .cta-section h2 { border: none; margin-top: 0; }
  .cta-btn { display: inline-block; background: linear-gradient(135deg, #3182ce, #2b6cb0); color: #fff; padding: 0.9rem 2rem; border-radius: 8px; text-decoration: none; font-weight: 700; font-size: 1rem; margin-top: 1rem; }
  .cta-btn:hover { background: linear-gradient(135deg, #2b6cb0, #2c5282); }
  footer { background: #0d0d1a; border-top: 1px solid #1e2636; padding: 2rem 1.5rem; text-align: center; }
  footer p { color: #4a5568; font-size: 0.85rem; }
  footer a { color: #63b3ed; text-decoration: none; }