@media (max-width: 920px) {
  :root {
    --rail-w: 68px;
  }
}

@media (max-width: 720px) {
  .shell-alert {
    align-items: flex-start;
    padding: 9px 14px;
  }

  .shell-alert .btn {
    padding-inline: 8px;
  }

  body {
    padding-bottom: env(safe-area-inset-bottom);
  }

  .app-shell {
    display: block;
  }

  .app-rail {
    position: fixed;
    z-index: 80;
    top: 0;
    left: 0;
    width: min(310px, 86vw);
    align-items: stretch;
    padding:
      calc(18px + env(safe-area-inset-top))
      18px
      calc(18px + env(safe-area-inset-bottom));
    transform: translateX(-105%);
    transition: transform 260ms cubic-bezier(.2,.8,.2,1);
  }

  body.mobile-nav-open .app-rail {
    transform: translateX(0);
  }

  .brand-mark {
    margin: 0 0 24px;
  }

  .rail-btn {
    display: flex;
    height: 46px;
    justify-content: flex-start;
    gap: 12px;
    padding: 0 13px;
  }

  .rail-btn::after {
    position: static;
    color: inherit;
    background: transparent;
    box-shadow: none;
    content: attr(data-label);
    opacity: 1;
    transform: none;
  }

  .rail-btn.active::before {
    left: -18px;
  }

  .rail-nav.bottom {
    border-top: 1px solid rgba(255,255,255,.1);
  }

  .mobile-context-backdrop {
    position: fixed;
    z-index: 70;
    display: block;
    background: rgba(25, 25, 25,.48);
    opacity: 0;
    pointer-events: none;
    transition: opacity 220ms ease;
    inset: 0;
  }

  body.mobile-nav-open .mobile-context-backdrop,
  body.context-open .mobile-context-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .mobile-workspace-tools {
    position: fixed;
    z-index: 68;
    top: calc(10px + env(safe-area-inset-top));
    left: 10px;
    display: flex;
    gap: 7px;
  }

  body.context-open .mobile-workspace-tools {
    z-index: 78;
  }

  .mobile-menu-btn {
    display: grid;
    width: 40px;
    height: 40px;
    color: var(--ink);
    background: color-mix(in srgb, var(--surface) 92%, transparent);
    border: 1px solid var(--line);
    backdrop-filter: blur(14px);
  }

  .context-resizer,
  .context-collapse {
    display: none;
  }

  .workbench {
    display: block;
  }

  .context-panel {
    position: fixed;
    z-index: 75;
    top: 0;
    left: 0;
    width: min(330px, 88vw);
    height: calc(100svh - 70px - env(safe-area-inset-bottom));
    padding-top: calc(60px + env(safe-area-inset-top));
    background: var(--surface);
    opacity: 0;
    pointer-events: none;
    transform: translateX(-105%);
    visibility: hidden;
    transition:
      transform 260ms cubic-bezier(.2,.8,.2,1),
      opacity 160ms ease,
      visibility 0s linear 260ms;
  }

  body.context-open .context-panel {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0);
    visibility: visible;
    transition-delay: 0s;
  }

  .mobile-dock {
    position: fixed;
    z-index: 60;
    right: 10px;
    bottom: calc(10px + env(safe-area-inset-bottom));
    left: 10px;
    display: grid;
    height: 58px;
    grid-auto-columns: minmax(0, 1fr);
    grid-auto-flow: column;
    padding: 5px;
    background: rgba(25, 25, 25,.92);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: var(--radius-16);
    backdrop-filter: blur(18px);
  }

  .dock-btn {
    display: grid;
    place-items: center;
    color: rgba(255,255,255,.48);
    background: transparent;
    border-radius: var(--radius-12);
    text-decoration: none;
  }

  .dock-btn.active {
    color: var(--on-dark);
    background: rgba(255,255,255,.1);
  }

  .page-layer {
    padding-bottom: 76px;
  }

  .screen {
    padding: 22px 16px 42px;
  }

  .app-shell .route-view.screen {
    padding-top: calc(70px + env(safe-area-inset-top));
  }

  .app-shell .route-view.editor-v2 {
    padding-top: calc(58px + env(safe-area-inset-top));
  }

  .app-shell .route-view.assistant-screen .assistant-main {
    padding-top: calc(66px + env(safe-area-inset-top));
  }

  .screen-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 22px;
  }

  .screen-actions {
    width: 100%;
    margin-left: 0;
    overflow-x: auto;
  }

  .modal-backdrop {
    align-items: end;
    padding: 0;
  }

  .modal-sheet {
    width: 100%;
    max-height: 86svh;
    border-radius: var(--radius-24) var(--radius-24) 0 0;
  }

  .profile-popover {
    right: 10px;
    bottom: calc(82px + env(safe-area-inset-bottom));
    left: 10px;
    width: auto;
    max-height: calc(100svh - 104px);
    overflow-y: auto;
  }

  .notification-popover {
    right: 10px;
    bottom: calc(82px + env(safe-area-inset-bottom));
    left: 10px;
    width: auto;
    max-height: calc(100svh - 104px);
  }

  .toast {
    right: 12px;
    bottom: calc(82px + env(safe-area-inset-bottom));
    left: 12px;
    max-width: none;
  }
}

@media (hover: none), (pointer: coarse) {
  /*
   * The visible track may remain visually quiet, but its hit area must be
   * large enough to drag reliably with a thumb. `pan-y` preserves vertical
   * page scrolling while reserving horizontal motion for the range control.
   */
  .library-scale input[type="range"],
  .feed-scale input[type="range"],
  .batch-scale input[type="range"] {
    min-height: 40px;
    touch-action: pan-y;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}