/* Keep the desktop motion language intact across tablet and phone layouts. */

/* Tablet and phone process cards keep the same sticky folder behavior. */
@media (max-width: 1050px) {
  .feature-process {
    min-height: 0;
    display: block;
    padding: 100px 5vw;
  }

  .process-heading {
    position: static;
    margin-bottom: 58px;
  }

  .process-steps {
    padding-bottom: max(46vh, 320px);
  }

  .process-step {
    position: sticky;
    top: clamp(88px, 11vh, 112px) !important;
    min-height: 170px;
    margin: 0 0 42vh;
    grid-template-columns: 96px 1fr;
    padding: 32px 30px;
    gap: 18px;
  }

  .process-step:nth-child(4) { margin-bottom: 0; }
}

@media (max-width: 760px) {
  .feature-process { padding: 78px 20px; }
  .process-heading { margin-bottom: 48px; }
  .process-steps { padding-bottom: max(48vh, 300px); }

  .process-step {
    top: clamp(78px, 10vh, 96px) !important;
    min-height: 158px;
    margin: 0 0 43vh;
    grid-template-columns: 58px 1fr;
    padding: 25px 20px;
    gap: 12px;
  }
}

/* Keep short phone/tablet viewports from clipping the brick-built chat. */
@media (max-width: 760px), (max-height: 700px) {
  .chat-modal {
    padding-top: max(10px, env(safe-area-inset-top));
    padding-right: max(10px, env(safe-area-inset-right));
    padding-bottom: max(10px, env(safe-area-inset-bottom));
    padding-left: max(10px, env(safe-area-inset-left));
  }

  .chat-window {
    width: min(620px, 100%);
    height: min(550px, calc(100vh - 20px));
    height: min(550px, calc(100dvh - 20px));
    min-height: 0;
    max-height: 100%;
  }

  .chat-window-content {
    width: 100%;
    height: 100%;
    min-height: 0;
    max-height: 100%;
  }

  .chat-messages {
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .chat-close,
  .chat-form button {
    width: 44px;
    height: 44px;
    min-width: 44px;
  }
}

@media (max-width: 760px) {
  .chat-orbit {
    right: max(16px, env(safe-area-inset-right));
    bottom: max(16px, env(safe-area-inset-bottom));
  }
}

/* Display-based menus cannot animate; keep the layer mounted and transition it. */
@media (max-width: 1180px) and (prefers-reduced-motion: no-preference) {
  .topbar .mobile-nav,
  .nav-open .topbar .mobile-nav {
    display: flex;
  }

  .topbar .mobile-nav {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-18px);
    transition:
      opacity .36s ease,
      transform .48s cubic-bezier(.16, 1, .3, 1),
      visibility 0s linear .48s;
  }

  .nav-open .topbar .mobile-nav {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    transition-delay: 0s;
  }

  .topbar .mobile-nav a {
    opacity: 0;
    transform: translateY(18px);
    transition:
      opacity .3s ease,
      transform .42s cubic-bezier(.16, 1, .3, 1);
    transition-delay: calc(var(--mobile-link, 0) * 35ms);
  }

  .nav-open .topbar .mobile-nav a {
    opacity: 1;
    transform: translateY(0);
  }

  .topbar .mobile-nav a:nth-child(1) { --mobile-link: 1; }
  .topbar .mobile-nav a:nth-child(2) { --mobile-link: 2; }
  .topbar .mobile-nav a:nth-child(3) { --mobile-link: 3; }
  .topbar .mobile-nav a:nth-child(4) { --mobile-link: 4; }
  .topbar .mobile-nav a:nth-child(5) { --mobile-link: 5; }
  .topbar .mobile-nav a:nth-child(6) { --mobile-link: 6; }
  .topbar .mobile-nav a:nth-child(7) { --mobile-link: 7; }
  .topbar .mobile-nav a:nth-child(8) { --mobile-link: 8; }
}

@media (prefers-reduced-motion: reduce) {
  .process-steps { padding-bottom: 0; }

  .process-step {
    position: relative;
    top: auto !important;
    margin: 0 0 10px;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* Motion accessibility is capability-based, never device-width based. */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .stat-row,
  .feature-copy,
  .use-card,
  .privacy > *,
  .moment-grid article,
  .little-things > *,
  .service-row,
  .service-value,
  .success-story,
  .news-card,
  .faq-item,
  .process-step,
  .service-phrase span,
  .hero-title .title-letters span,
  .hero-letter-reveal .animated-word > span {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
    transition: none !important;
  }

  .chat-modal.is-open .brick-build { display: none; }

  .chat-modal.is-open .chat-window-content {
    opacity: 1;
    transform: none;
    animation: none;
  }
}