/* Hamrah Group 11.5A Dev1.5 — gallery/menu motion-only layer */
:root {
  --hm-gallery-sheet-open: 190ms;
  --hm-gallery-sheet-close: 150ms;
  --hm-gallery-selection: 80ms;
  --hm-gallery-preview: 150ms;
  --hm-menu-open: 110ms;
  --hm-menu-close: 85ms;
}

html[data-g115-motion-platform="windows"] {
  --hm-gallery-sheet-open: 160ms;
  --hm-gallery-sheet-close: 120ms;
  --hm-gallery-preview: 130ms;
  --hm-menu-open: 95ms;
  --hm-menu-close: 70ms;
}

/* Keep existing resting design; narrow legacy transitions to compositor-safe properties. */
html[data-g115d15-ready="true"] :is(
  .g113-media-tile,
  .g113-file-item,
  .g113-selected-strip button,
  .g113-album-chips button,
  .g113-attachment-home > button
) {
  transition-property: transform, opacity, background-color, border-color, color;
  transition-duration: var(--hm-motion-micro);
  transition-timing-function: var(--hm-ease-standard);
}

html[data-g115d15-ready="true"] .g113-media-tile > i,
html[data-g115d15-ready="true"] .g113-file-item > i {
  transition-property: transform, opacity, background-color, border-color, color;
  transition-duration: var(--hm-gallery-selection);
  transition-timing-function: var(--hm-ease-enter);
}

html[data-g115d15-ready="true"] .g113-media-tile img {
  backface-visibility: hidden;
  transform: translateZ(0);
}

html[data-g115d15-ready="true"] [data-g115d15-gallery-state="closing"] {
  pointer-events: none !important;
}

html[data-g115d15-ready="true"] [data-g115d15-menu-state="opening"],
html[data-g115d15-ready="true"] [data-g115d15-menu-state="open"] {
  backface-visibility: hidden;
}

/* Glass blur stays static. Never animate filter/backdrop-filter/shadow. */
html[data-g115d15-ready="true"] :is(.g113-media-titlebar,.g113-media-sheet,[role="menu"],.g10-popover,.context-menu,.dropdown-menu,.popover) {
  transition-property: transform, opacity, background-color, border-color, color;
}

html[data-g115-motion-mode="reduced"] {
  --hm-gallery-sheet-open: 85ms;
  --hm-gallery-sheet-close: 70ms;
  --hm-gallery-selection: 55ms;
  --hm-gallery-preview: 80ms;
  --hm-menu-open: 65ms;
  --hm-menu-close: 50ms;
}

html[data-g115-motion-mode="reduced"] :is(
  .g113-media-tile,
  .g113-file-item,
  .g113-selected-strip button,
  [data-g115d15-menu-state]
) {
  transform: none;
}

html[data-g115-motion-mode="off"] :is(
  .g113-media-tile,
  .g113-file-item,
  .g113-selected-strip button,
  .g113-album-chips button,
  .g113-attachment-home > button,
  [data-g115d15-menu-state]
) {
  transition-duration: 0ms !important;
  animation-duration: .001ms !important;
}

html[data-g115-document="hidden"] :is(
  .g113-media-spinner,
  .g113-media-tile img,
  [data-g115d15-menu-state]
) {
  animation-play-state: paused !important;
}