/* ============================================
   RESPONSIVE.CSS — Media queries centralizados
   ============================================ */

/* ── TABLET (≤ 1024px) ─────────────────────── */
@media (max-width: 1024px) {
  nav { padding: 1.2rem 2rem; }
  nav ul { gap: 1.5rem; }
  nav a { font-size: 0.78rem; letter-spacing: 0.06em; }
  .nav-cta { padding: 0.5rem 1rem; }

  .hero { padding: 7rem 2rem 3rem; }

  .stats-strip {
    grid-template-columns: repeat(3, 1fr);
    padding: 2rem 1.5rem;
  }
  .stat-item { padding: 1.5rem 1rem; }
  .stat-number { font-size: 2.2rem; }
  .stat-text { font-size: 1.1rem; }

  .section { padding: 5rem 2rem; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }

  .orbit-section { padding: 5rem 2rem; gap: 3rem; }

  .cta-section { padding: 5rem 2rem; }
  .cta-box { padding: 3.5rem 2.5rem; }

  footer { padding: 2.5rem 2rem; flex-wrap: wrap; gap: 0.75rem; }

  .chat-modal { width: 340px; }
}

/* ── MOBILE (≤ 768px) ──────────────────────── */
@media (max-width: 768px) {
  body { cursor: auto; }
  #cursor, #cursor-ring { display: none; }

  /* Nav */
  nav { padding: 1rem 1.5rem; }
  .hamburger { display: flex; }

  nav ul {
    display: none;
    flex-direction: column;
    gap: 0;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(2, 4, 8, 0.97);
    backdrop-filter: blur(20px);
    align-items: center;
    justify-content: center;
    z-index: 150;
    padding: 2rem;
  }

  nav ul.open { display: flex; }
  nav ul li { width: 100%; text-align: center; }

  nav a {
    display: block;
    font-size: 1.2rem;
    padding: 1.2rem 0;
    border-bottom: 1px solid var(--border);
    letter-spacing: 0.12em;
  }

  nav ul li:last-child a { border-bottom: none; margin-top: 1.5rem; }

  .nav-cta {
    display: inline-block;
    padding: 1rem 2.5rem !important;
    font-size: 1rem !important;
  }

  .logo { font-size: 1.1rem; }

  /* Hero */
  .hero { padding: 6rem 1.5rem 6rem; }
  h1 { font-size: clamp(2rem, 9vw, 3rem); }
  .hero-sub { font-size: 1rem; }
  .hero-actions { flex-direction: column; align-items: center; width: 100%; }
  .btn-primary, .btn-ghost { width: 100%; text-align: center; }

  /* Stats — empilha em 1 coluna */
  .stats-strip {
    grid-template-columns: 1fr;
    padding: 1.5rem 1.5rem;
  }
  .stat-number { font-size: 2rem; }
  .stat-text { font-size: 1.2rem; }
  .stat-item {
    padding: 1.4rem 1rem;
    border-right: none !important;
    border-bottom: 1px solid var(--border);
  }
  .stat-item:last-child { border-bottom: none; }

  /* Features */
  .section { padding: 4rem 1.5rem; }
  .section-title { font-size: clamp(1.4rem, 6vw, 2rem); }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 2rem 1.5rem; }

  /* Orbit */
  .orbit-section {
    grid-template-columns: 1fr;
    padding: 4rem 1.5rem;
    gap: 3rem;
    text-align: center;
  }
  .orbit-desc { margin-left: auto; margin-right: auto; }
  .orbit-bullets { align-items: center; }
  .orbit-visual { max-width: 300px; order: -1; }
  .orbit-ring:nth-child(2) { width: 130px; height: 130px; }
  .orbit-ring:nth-child(3) { width: 200px; height: 200px; }
  .orbit-ring:nth-child(4) { width: 270px; height: 270px; }
  .orbit-core { width: 64px; height: 64px; }

  /* CTA */
  .cta-section { padding: 4rem 1.5rem; }
  .cta-box { padding: 3rem 1.5rem; }
  .cta-box h2 { font-size: clamp(1.4rem, 7vw, 2rem); }
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-actions .btn-primary { width: 100%; max-width: 320px; text-align: center; }

  /* Marquee */
  .marquee-item { font-size: 0.85rem; }

  /* Footer */
  footer {
    padding: 2rem 1.5rem;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.5rem;
  }

  /* Chat */
  .chat-modal {
    bottom: 0;
    right: 0;
    left: 0;
    width: 100%;
    max-height: 75vh;
    border-radius: 12px 12px 0 0;
  }
}

/* ── SMALL MOBILE (≤ 420px) ────────────────── */
@media (max-width: 420px) {
  .logo { font-size: 0.95rem; letter-spacing: -0.01em; }
  h1 { font-size: clamp(1.8rem, 10vw, 2.6rem); }
  .stat-number { font-size: 1.7rem; }
  .stat-text { font-size: 1.1rem; }
  .stat-label { font-size: 0.65rem; }
  .cta-box { padding: 2.5rem 1.2rem; }
}