/* ==========================================================================
   Responsive — each breakpoint re-composes the layout, it doesn't just shrink it.
   Breakpoints: 1100 (laptop/tablet landscape) · 900 (tablet) · 640 (phone) · 480 (small phone)
   Standards followed: 44px touch targets, 16px form text (no iOS zoom), dvh + safe-area
   insets, hover-free fallbacks, reduced-motion respected.
   ========================================================================== */

@media (max-width: 1100px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero .lede, .hero-note { max-width: 40em; }
  .ed-wrap { max-width: 860px; }
  .why-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .steps { grid-template-columns: repeat(7, minmax(116px, 1fr)); overflow-x: auto; padding-bottom: 8px; scroll-snap-type: x proximity; -webkit-overflow-scrolling: touch; }
  .steps .step { scroll-snap-align: start; }
  .steps-fill { width: calc(var(--p) * (100% - 116px) + 4px); }
  .studios { grid-template-columns: 1fr 1fr; }
  .studio-feature { grid-column: 1 / -1; box-shadow: inset 0 3px 0 var(--indigo); }
  .studio:nth-child(2) { border-left: 0; border-top: 1px solid var(--line); }
  .studio:nth-child(3) { border-top: 1px solid var(--line); }
}

@media (max-width: 900px) {
  :root { --nav-h: 64px; }

  /* nav becomes a full-screen menu */
  .nav-toggle { display: block; }
  .nav-logo img { height: 36px; }
  .nav .nav-book { display: none; }
  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0; height: calc(100dvh - var(--nav-h));
    flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 0;
    background: var(--cream-2); padding: 8px max(var(--gutter), env(safe-area-inset-left)) calc(28px + env(safe-area-inset-bottom));
    overflow-y: auto;
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
  }
  .nav.is-open .nav-links { opacity: 1; visibility: visible; transform: none; }
  .nav-links a { padding: 18px 0; font-size: 1.5rem; font-weight: 400; letter-spacing: -0.03em; color: var(--ink); border-bottom: 1px solid var(--line); }
  .nav-links a::after { display: none; }
  .nav-links .nav-cta { display: inline-flex; align-items: center; justify-content: center; align-self: flex-start; margin-top: 28px; padding: 0 22px; min-height: 48px; border: 0; font-size: 0.95rem; font-weight: 600; letter-spacing: -0.005em; background: var(--coral); color: var(--navy); }

  .section-head, .price-grid, .faq-grid, .why-layout { grid-template-columns: 1fr; }
  .why-list { grid-auto-rows: auto; }
  .why-item { min-height: 68px; }
  .section-head { align-items: start; }
  .faq-side { position: static; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: 0; padding-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid rgba(255, 255, 255, 0.22); }
  .final .orbit { right: 6%; top: 8%; opacity: 0.55; }
}

@media (max-width: 640px) {
  /* workflow becomes a vertical progression */
  .steps { grid-template-columns: 1fr; overflow: visible; padding: 0 0 0 38px; row-gap: 0; }
  .steps::before { top: 12px; bottom: 12px; left: 5px; right: auto; width: 2px; height: auto; }
  .steps-fill { left: 5px; top: 12px; width: 2px; height: calc(var(--p) * (100% - 24px)); transition: height 0.12s linear; }
  .steps-fill::after { right: auto; left: -4px; top: auto; bottom: -5px; margin: 0; }
  .step-btn { padding: 0 0 26px; }
  .step-dot { left: -38px; top: 2px; }
  .step-num { margin: 0 0 6px; }
  .step h3 { min-height: 0; }
  .step p { max-width: none; }

  .studios { grid-template-columns: 1fr; }
  .studio { border-left: 0; border-top: 1px solid var(--line); }
  .studio:first-child { border-top: 0; }
  .studio h3 { margin-top: 28px; }
  .faq-a p { padding-right: 0; }
  .sheet { box-shadow: 5px 5px 0 var(--stone); }

  .footer-row { flex-direction: column; align-items: flex-start; }
  .footer-side { flex-direction: column; align-items: flex-start; }

  /* request form: bottom sheet */
  .modal { align-items: flex-end; padding: 0; }
  .m-dialog { grid-template-columns: 1fr; display: flex; flex-direction: column; overflow: hidden; max-height: 94dvh; max-width: none; }
  .m-aside { padding: 22px var(--gutter) 20px; flex: none; }
  .m-aside::after, .m-mail { display: none; }
  .m-aside h2 { margin: 12px 0 8px; font-size: 1.6rem; }
  .m-aside p { font-size: 0.88rem; padding-right: 36px; }
  .m-main { overflow-y: auto; flex: 1; min-height: 0; padding: 22px var(--gutter) calc(24px + env(safe-area-inset-bottom)); }
  .modal-close { color: var(--on-dark-soft); top: 12px; right: 8px; }
  .modal-close:hover { color: #fff; }
  .form { gap: 20px; }
  .form-row { grid-template-columns: 1fr; gap: 20px; }
  .form-actions .btn { width: 100%; }
  .form-note { max-width: none; }
}

@media (max-width: 640px) {
  .qp { padding: 12px; }
  .qp-check { grid-template-columns: 1fr; }
  .qp-run { justify-content: center; }
  .qp-score { padding: 12px; }
  .qp-num { font-size: 2.1rem; }
  .qp-acts .qp-apply { flex: 1; justify-content: center; }
}

@media (max-width: 480px) {
  :root { --gutter: 18px; }
  .hero h1 { font-size: 9.8vw; }
  .hero h1 .ph { display: block; }
  .hero-cta { flex-direction: column; align-items: stretch; gap: 0; }
  .hero-cta .btn { width: 100%; }
  .hero-cta .link-arrow { justify-content: center; }
  .final-cta { flex-direction: column; }
  .final-cta .btn { width: 100%; }
  .stat strong { font-size: 2rem; }
  .sheet .btn { width: 100%; }
  .chips { gap: 6px; }
}

/* very short landscape screens (phones turned sideways) */
@media (max-height: 520px) and (orientation: landscape) {
  .m-aside p { display: none; }
  .m-aside h2 { margin-bottom: 0; }
  .nav-links a { padding-block: 12px; font-size: 1.2rem; }
}

/* touch devices: no hover affordances to hide */
@media (hover: none) {
  .why-item:hover { padding-left: clamp(4px, 1vw, 14px); }
}