/* ============================================================
   Crane Responsive — Mobile-first media queries
   ============================================================ */

/* ---- Tablets (max 900px) ---- */
@media (max-width: 900px) {
  /* Nav: hamburger menu */
  .nav-actions .menu-toggle { display: flex; }
  .nav-actions .theme-pills { display: none; }
  .nav-actions .lang-switcher { display: none; }
  nav .links {
    display: none;
    position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(224, 237, 255, 0.97);
    backdrop-filter: blur(16px) saturate(140%);
    flex-direction: column; align-items: stretch;
    padding: 12px 24px 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    gap: 0;
  }
  nav .links.open { display: flex; }
  [data-theme="night"] nav .links { background: rgba(13, 11, 24, 0.97); }
  [data-theme="dusk"] nav .links { background: rgba(58, 40, 32, 0.97); }
  nav .links a {
    padding: 14px 0; border-bottom: 1px solid var(--border); font-size: 1rem;
  }
  nav .links a:first-of-type { border-top: 1px solid var(--border); }
  nav .links a:last-of-type { border-bottom: none; }
  .mobile-menu-controls {
    display: flex; align-items: center; gap: 8px;
    justify-content: flex-end; padding: 0 0 8px;
  }
  .mobile-menu-controls .theme-pills { display: inline-flex; }
  .mobile-menu-controls .lang-switcher { display: block; position: relative; }
  .mobile-menu-controls .lang-dropdown {
    position: fixed; left: 16px; right: 16px;
    top: auto; width: auto; min-width: 0;
    max-height: 60vh; z-index: 300;
  }

  /* Hero */
  .hero { padding: 80px 24px 32px; }
  .hero h1 { font-size: clamp(2rem, 5vw, 2.8rem); }

  /* Grids collapse */
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .cascade-grid { grid-template-columns: 1fr; }
  .cascade-body { position: static; display: none; }
  .science-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .app-screenshots { grid-template-columns: 1fr; max-width: 400px; }
  .stat-cards { grid-template-columns: 1fr 1fr; }

  /* Demo section */
  .demo-section { min-height: 120vh; }
  .demo-panels { gap: 8vh; padding: 15vh 24px 8vh; }

  /* Section spacing */
  section { padding: 56px 0; }
  section h2 { font-size: 1.8rem; }
  .faq { padding: 56px 0; }
  .faq h2 { font-size: 1.6rem; }

  /* Footer */
  footer .inner { flex-direction: column; gap: 16px; text-align: center; }

  /* Decorative */
  .float-orb { display: none; }
}

/* ---- Small tablets / large phones (max 640px) ---- */
@media (max-width: 640px) {
  .hero h1 { font-size: 2rem; }
  .hero .subtitle { font-size: 1rem; }
  section h2 { font-size: 1.6rem; }
  section { padding: 40px 0; }
  .stat-cards { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .hero .store-buttons { flex-direction: column; align-items: center; }
  .hero .store-buttons .btn-primary { width: 100%; max-width: 300px; justify-content: center; }
  .compare-table th, .compare-table td { padding: 10px 12px; font-size: 0.8rem; }
  .faq { padding: 40px 0; }
  .demo-panels { gap: 6vh; }
}

/* ---- Phones (max 480px) ---- */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .container-narrow { padding: 0 16px; }
  nav .inner { padding: 0 16px; }
  nav .links { padding: 12px 16px 20px; }
  .hero { padding: 74px 16px 24px; }
  .hero h1 { font-size: 1.7rem; }
  .hero .subtitle { font-size: 0.93rem; }
  section h2 { font-size: 1.35rem; }
  section .section-sub { font-size: 0.9rem; }
  section { padding: 32px 0; }
  .feature-card { padding: 20px; }
  .price-card { padding: 24px; }
  .price-card .price { font-size: 2rem; }
  .disclaimer-box { padding: 20px; }
  .faq-item summary { font-size: 0.88rem; padding: 14px 4px; }
  .faq { padding: 32px 0; }
  .cost-counter .amount { font-size: clamp(2.4rem, 10vw, 3.5rem); }
  footer .links { flex-wrap: wrap; justify-content: center; gap: 12px; }
  .btn-gradient { padding: 14px 28px; font-size: 1rem; }
}