/* Responsive refinements for tablets and phones. */
@media (max-width: 1100px) {
  .site-header { gap: 20px; }
  .site-header nav { gap: 18px; }
  .hero { gap: 42px; min-height: auto; padding-top: 72px; padding-bottom: 80px; }
  .hero h1 { font-size: clamp(48px, 6.5vw, 68px); }
  .section { padding-top: 88px; padding-bottom: 88px; }
}

@media (max-width: 900px) {
  .site-header { max-width: none; }
  .site-header nav { display: none; }
  .hero { grid-template-columns: 1fr; gap: 48px; padding-top: 64px; }
  .hero-copy { max-width: 720px; }
  .data-card { width: min(100%, 680px); margin: 0 auto; transform: none; }
  .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
  .step-card { padding: 22px; }
  .step-card h3 { margin-top: 34px; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-card:last-child { grid-column: 1 / -1; min-height: 220px; }
  .faq-section { grid-template-columns: 1fr; gap: 24px; }
  .waitlist { margin-left: 18px; margin-right: 18px; margin-bottom: 80px; }
}

@media (max-width: 680px) {
  .site-header { padding: 13px 16px; }
  .site-header > .button { padding: 9px 13px; font-size: 12px; }
  .brand { min-width: 0; gap: 9px; }
  .brand img { width: 32px; height: 32px; }
  .brand strong { font-size: 14px; }
  .brand small { font-size: 8px; white-space: nowrap; }
  .hero { padding: 48px 18px 64px; gap: 36px; }
  .hero h1 { font-size: clamp(41px, 12vw, 56px); overflow-wrap: anywhere; }
  .lead { font-size: 16px; }
  .actions { align-items: stretch; flex-direction: column; gap: 16px; }
  .actions .button { width: 100%; text-align: center; }
  .text-link { text-align: center; }
  .data-card { border-radius: 20px; padding: 20px; }
  .metric-primary { margin-top: 30px; }
  .metric-primary strong { font-size: 52px; }
  .section { padding: 72px 18px; }
  .section-heading { margin-bottom: 32px; }
  .steps, .feature-grid, .pricing-grid { grid-template-columns: 1fr; }
  .feature-card:last-child { grid-column: auto; }
  .step-card, .feature-card, .price-card { padding: 24px; }
  .step-card h3, .feature-card h3 { margin-top: 34px; }
  .trust-strip { justify-content: flex-start; padding: 18px; gap: 10px 20px; }
  .faq-list p { padding-right: 0; }
  .waitlist { padding: 52px 18px; margin: 0 12px 64px; border-radius: 22px; }
  .placeholder-form { flex-direction: column; }
  .site-footer { padding: 30px 18px 42px; grid-template-columns: 1fr; }
  .footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 18px; }
}

@media (max-width: 390px) {
  .brand small { display: none; }
  .site-header > .button { padding-inline: 11px; }
  .hero h1 { font-size: 40px; }
  .metric-primary strong { font-size: 46px; }
  .metric-row { display: grid; grid-template-columns: 1fr 1fr; }
  .price { font-size: 36px !important; }
  .footer-links { grid-template-columns: 1fr; }
}