/* ╔═══════════════════════════════════════════════════════╗
   ║  responsive.css — all breakpoints + motion prefs      ║
   ╚═══════════════════════════════════════════════════════╝ */

/* ── Tablet 1024px ─────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: var(--sp-12); }
  .hero-aside { display: grid; grid-template-columns: 1fr 1fr; }
  .countdown-box { grid-column: 1 / -1; }

  .features-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid   { grid-template-columns: 1fr 1fr; gap: var(--sp-8); }
  .footer-brand  { grid-column: 1 / -1; }
}

/* ── Mobile 768px ──────────────────────────────────────── */
@media (max-width: 768px) {

  /* Nav */
  .nav-links {
    position: fixed;
    inset-block-start: 68px;
    inset-inline: 0;
    background: rgba(255,255,255,.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: center;
    gap: var(--sp-6);
    padding: var(--sp-8);
    border-bottom: 1px solid var(--warm-200);
    transform: translateY(-110%);
    transition: transform var(--dur-base) var(--ease);
    z-index: 100;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { font-size: 1.05rem; }
  .nav-toggle { display: flex; }

  /* Hero */
  .hero-inner { padding-inline: var(--sp-5); }
  .hero-aside { grid-template-columns: 1fr; }
  .countdown-box { grid-column: auto; }
  .hero-actions { flex-direction: column; align-items: flex-start; }

  /* Timeline → single column */
  .timeline::before { left: 22px; }
  .tl-item {
    display: block;
    padding-left: 68px;
    padding-right: var(--sp-2);
    position: relative;
  }
  .tl-dot {
    position: absolute;
    left: 0;
    top: var(--sp-4);
    padding-top: 0;
  }
  .tl-card,
  .tl-item:nth-child(odd) .tl-card,
  .tl-item:nth-child(even) .tl-card {
    grid-column: auto;
    grid-row: auto;
    text-align: left;
    padding-left: var(--sp-5);
    padding-right: var(--sp-4);
  }
  .tl-pct-text,
  .tl-item:nth-child(odd) .tl-pct-text,
  .tl-item:nth-child(even) .tl-pct-text { text-align: left; }

  /* Features */
  .features-grid { grid-template-columns: 1fr; }

  /* Waitlist form */
  .wl-row { grid-template-columns: 1fr; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: var(--sp-8); }
  .footer-brand { grid-column: auto; }
  .footer-bottom { flex-direction: column; text-align: center; }

  /* Sections */
  .section, .section-alt, .section-teal { padding-block: var(--sp-16); }
  .section-head { margin-bottom: var(--sp-10); }
}

/* ── Small mobile 480px ────────────────────────────────── */
@media (max-width: 480px) {
  .container, .hero-inner { padding-inline: var(--sp-5); }
  .hbadge { font-size: .75rem; }
  .hero h1 { font-size: 1.9rem; }
  .waitlist-form { padding: var(--sp-6) var(--sp-5); }
  .btn-submit, .btn-primary { font-size: .95rem; }
}

/* ── Touch devices — disable hover transforms ──────────── */
@media (hover: none) {
  .tl-card:hover, .feat-card:hover,
  .stat-card:hover, .btn-primary:hover,
  .btn-ghost:hover, .btn-submit:hover { transform: none; }
}

/* ══════════════════════════════════════════════════════════
   REDUCED MOTION
   Critical for accessibility — elderly and vestibular users.
   All transitions collapse to instant; elements remain visible.
   ══════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }

  /* Ensure elements are visible even without transitions */
  .tl-item, .feat-card, .reveal {
    opacity: 1 !important;
    transform: none !important;
  }

  .tl-fill { transition: none !important; }
  .ring-fg  { transition: none !important; }
}