body { background: var(--ui-canvas); }

html { scroll-behavior: smooth; }

@keyframes ui-view-in {
  from { opacity: 0; transform: translate3d(0, 10px, 0); }
  to { opacity: 1; transform: translate3d(0, 0, 0); }
}

@keyframes ui-item-in {
  from { opacity: 0; transform: translate3d(0, 6px, 0); }
  to { opacity: 1; transform: translate3d(0, 0, 0); }
}

@keyframes ui-status-breathe {
  0%, 100% { opacity: .56; transform: scale(.82); }
  50% { opacity: 1; transform: scale(1); }
}

@keyframes ui-detail-in {
  from { opacity: 0; transform: translate3d(0, -4px, 0); }
  to { opacity: 1; transform: translate3d(0, 0, 0); }
}

.login-screen {
  min-height: 100dvh;
  padding: 24px;
  background: var(--ui-canvas);
}

.login-card {
  width: min(400px, 100%);
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-lg);
  background: var(--ui-surface);
  box-shadow: var(--ui-shadow-float);
  animation: ui-view-in 420ms var(--ui-ease-emphasized) both;
}

.login-card h1 { margin-bottom: 8px; }
.login-card .eyebrow { color: var(--ui-accent); }

.app-shell {
  min-height: 100dvh;
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  background: var(--ui-canvas);
}

.app-shell::before {
  position: fixed;
  z-index: 121;
  top: 0;
  left: 0;
  width: 48px;
  height: 2px;
  background: var(--ui-accent);
  content: "";
  pointer-events: none;
}

.sidebar-backdrop { display: none; }

.sidebar {
  position: sticky;
  top: 0;
  z-index: 120;
  width: auto;
  height: 100dvh;
  gap: 0;
  padding: 16px 12px 14px;
  overflow-y: auto;
  border-right: 1px solid var(--ui-border);
  background: var(--ui-surface);
  transition: background-color var(--ui-motion-base) var(--ui-ease-standard), border-color var(--ui-motion-base) var(--ui-ease-standard);
}

.sidebar-brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 46px;
  margin: 0 4px 22px;
}

.brand {
  position: relative;
  padding: 0;
  color: var(--ui-text);
  font-size: 20px;
  font-weight: 760;
  letter-spacing: .02em;
}

.brand strong { color: var(--ui-accent); }

.brand::after {
  position: absolute;
  right: -22px;
  bottom: 4px;
  width: 14px;
  height: 2px;
  background: var(--ui-accent);
  content: "";
  transform-origin: left center;
  transition: transform var(--ui-motion-slow) var(--ui-ease-emphasized);
}

.sidebar-brand-row:hover .brand::after { transform: scaleX(1.55); }

.sidebar-group { display: grid; gap: 2px; margin-bottom: 18px; }
.sidebar-nav { display: grid; }
#sidebar-workspace-links { display: grid; gap: 2px; }

.sidebar-group-label {
  margin: 0 10px 6px;
  color: var(--ui-text-tertiary);
  font-size: 10px;
  font-weight: 720;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.nav {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 38px;
  padding: 0 10px;
  border: 0;
  border-radius: var(--ui-radius-sm);
  background: transparent;
  color: var(--ui-text-secondary);
  font-size: 13px;
  font-weight: 600;
  text-align: left;
  transition: background-color var(--ui-motion-fast) var(--ui-ease-standard), color var(--ui-motion-fast) var(--ui-ease-standard), transform var(--ui-motion-fast) var(--ui-ease-standard);
}

.nav:hover { background: var(--ui-surface-muted); color: var(--ui-text); transform: translateX(2px); }

.nav.active {
  background: var(--ui-accent-soft);
  color: var(--ui-accent);
}

.nav.active::before {
  position: absolute;
  left: -12px;
  width: 3px;
  height: 18px;
  border-radius: 0 3px 3px 0;
  background: var(--ui-accent);
  content: "";
  transform: scaleY(1);
  transform-origin: center;
  animation: ui-nav-marker var(--ui-motion-base) var(--ui-ease-emphasized) both;
}

@keyframes ui-nav-marker {
  from { opacity: 0; transform: scaleY(.25); }
  to { opacity: 1; transform: scaleY(1); }
}

.nav-canvas { margin: 0; border: 0; background: transparent; color: var(--ui-text-secondary); font-weight: 600; }
.nav-canvas:hover, .nav-canvas.active { border: 0; box-shadow: none; }

.sidebar-foot {
  display: grid;
  gap: 3px;
  margin-top: auto;
  padding: 14px 10px 4px;
  border-top: 1px solid var(--ui-border);
  color: var(--ui-text-tertiary);
  font-size: 12px;
}

.sidebar-foot strong { color: var(--ui-text); font-size: 13px; }
.sidebar-foot .link-button { width: max-content; min-height: 28px; padding: 0; color: var(--ui-text-secondary); font-size: 12px; }
.sidebar-foot .link-button:hover { color: var(--ui-danger); }

main {
  position: relative;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0 32px 48px;
}

.app-topbar {
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--ui-border);
  transition: border-color var(--ui-motion-base) var(--ui-ease-standard);
}

.app-topbar-left,
.app-topbar-right,
.page-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.app-topbar .ui-icon-button { display: none; }
.app-topbar #theme-toggle { display: inline-grid; }
.app-topbar .status:empty { display: none; }

.app-breadcrumb {
  overflow: hidden;
  color: var(--ui-text-tertiary);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app-breadcrumb strong { color: var(--ui-text-secondary); font-weight: 650; }

.theme-toggle-mark {
  position: relative;
  width: 15px;
  height: 15px;
  border: 1.5px solid currentColor;
  border-radius: 50%;
  transition: transform var(--ui-motion-base) var(--ui-ease-emphasized);
}

:root[data-theme="dark"] .theme-toggle-mark { transform: rotate(-18deg); }

:root[data-theme="dark"] .theme-toggle-mark::after {
  position: absolute;
  top: -3px;
  right: -4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ui-surface);
  content: "";
}

.sidebar-toggle-mark,
.sidebar-toggle-mark::before,
.sidebar-toggle-mark::after {
  display: block;
  width: 16px;
  height: 1.5px;
  border-radius: 99px;
  background: currentColor;
  content: "";
}

.sidebar-toggle-mark { position: relative; }
.sidebar-toggle-mark::before { position: absolute; top: -5px; }
.sidebar-toggle-mark::after { position: absolute; top: 5px; }

.page-header {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 24px;
}

.page-header::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: var(--ui-border);
  content: "";
  transform: scaleX(.055);
  transform-origin: left center;
  transition: background-color var(--ui-motion-base) var(--ui-ease-standard), transform var(--ui-motion-slow) var(--ui-ease-emphasized);
}

.page-header:hover::after { background: var(--ui-accent-border); transform: scaleX(.11); }

.page-header-copy { min-width: 0; }
.page-header-copy.ui-header-enter { animation: ui-view-in var(--ui-motion-slow) var(--ui-ease-emphasized) both; }
.page-header .eyebrow { margin: 0 0 5px; }
.page-header h1 { margin: 0; }
.page-description { max-width: 720px; margin: 7px 0 0; color: var(--ui-text-secondary); font-size: 13px; }
.page-header-actions { flex-wrap: wrap; justify-content: flex-end; }

main > .view.ui-view-enter > * {
  animation: ui-view-in var(--ui-motion-slow) var(--ui-ease-emphasized) both;
}

main > .view.ui-view-enter > :nth-child(2) { animation-delay: 35ms; }
main > .view.ui-view-enter > :nth-child(3) { animation-delay: 70ms; }
main > .view.ui-view-enter > :nth-child(4) { animation-delay: 105ms; }

.ui-item-enter { animation: ui-item-in var(--ui-motion-base) var(--ui-ease-emphasized) both; }

.ui-theme-transition body,
.ui-theme-transition .sidebar,
.ui-theme-transition .app-topbar,
.ui-theme-transition .page-header,
.ui-theme-transition .panel,
.ui-theme-transition .model-panel,
.ui-theme-transition input,
.ui-theme-transition textarea,
.ui-theme-transition select {
  transition: background-color var(--ui-motion-base) var(--ui-ease-standard), border-color var(--ui-motion-base) var(--ui-ease-standard), color var(--ui-motion-base) var(--ui-ease-standard);
}

.panel,
.model-panel,
.summary-card,
.production-module,
.pipeline-step,
.v4-panel,
.production-collab-section {
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-md);
  background: var(--ui-surface);
  box-shadow: none;
}

.panel { padding: 20px; }
.model-panel { padding: 14px; }

.panel-title,
.section-bar,
.v4-panel-bar,
.v5-topbar,
.workflow-canvas-topbar,
.production-collab-head,
.production-collab-section-head {
  gap: 16px;
}

.panel-title,
.section-bar { border-color: var(--ui-border); }

.section-bar {
  align-items: flex-end;
  margin-bottom: 20px;
  padding-bottom: 16px;
}

.section-bar h2 { margin-bottom: 4px; }

.workbench-layout {
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  gap: 20px;
}

.model-panel { position: sticky; top: 18px; max-height: calc(100dvh - 92px); overflow: auto; }
.model-toolbar { position: sticky; top: -14px; z-index: 2; padding: 0 0 12px; background: var(--ui-surface); }
.model-list { grid-template-columns: 1fr; gap: 6px; }

.model-row {
  min-height: 0;
  padding: 11px;
  border: 1px solid transparent;
  border-radius: var(--ui-radius-sm);
  background: transparent;
  color: var(--ui-text);
  box-shadow: none;
  transition: background-color var(--ui-motion-fast) var(--ui-ease-standard), border-color var(--ui-motion-fast) var(--ui-ease-standard), transform var(--ui-motion-fast) var(--ui-ease-standard);
}

.model-row:hover { border-color: var(--ui-border); background: var(--ui-surface-muted); transform: translateX(2px); }
.model-row.selected { border-color: var(--ui-accent-border); background: var(--ui-accent-soft); box-shadow: none; }
.model-row span { color: var(--ui-text-tertiary); }

.studio-grid { grid-template-columns: minmax(0, 1fr) 280px; gap: 20px; }
.prompt-panel { min-width: 0; }
.settings-panel { position: sticky; top: 18px; align-self: start; }
.settings-panel .primary { width: 100%; }

.knowledge-prompt-tool {
  margin: 0 0 16px;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-sm);
  background: var(--ui-surface-muted);
}

.knowledge-prompt-tool summary { margin: 0; padding: 10px 12px; color: var(--ui-text-secondary); font-size: 13px; font-weight: 650; }
.knowledge-prompt-tool > div { padding: 0 12px 12px; }

.data-list,
.v4-result-list,
.v4-pipeline-stages,
.production-collab-list { border-color: var(--ui-border); background: transparent; }

.data-row,
.v4-result-row,
.v4-pipeline-stage,
.production-collab-row {
  min-height: 58px;
  padding: 12px 0;
  border-bottom: 1px solid var(--ui-border);
  background: transparent;
  transition: background-color var(--ui-motion-fast) var(--ui-ease-standard), border-color var(--ui-motion-fast) var(--ui-ease-standard);
}

.data-row:hover,
.v4-result-row:hover,
.v4-pipeline-stage:hover,
.production-collab-row:hover { background: var(--ui-surface-muted); }

.data-row:last-child,
.v4-result-row:last-child,
.v4-pipeline-stage:last-child,
.production-collab-row:last-child { border-bottom: 0; }

.data-row small,
.v4-result-row small,
.v4-pipeline-stage small { color: var(--ui-text-tertiary); }

.task,
.compact-task {
  border-color: var(--ui-border);
  border-radius: var(--ui-radius-md);
  background: var(--ui-surface);
  box-shadow: none;
}

.task { transition: border-color var(--ui-motion-fast) var(--ui-ease-standard), transform var(--ui-motion-fast) var(--ui-ease-standard); }
.task:hover { border-color: var(--ui-border-strong); transform: translateY(-1px); }

.production-view,
.production-view > * { max-width: none; }

.production-view .section-bar h2 { display: block; }
.production-view .section-bar p { color: var(--ui-text-secondary); font-size: 13px; }

.production-mode-nav,
.production-workspace-switch,
.v4-stage-nav,
.v5-stage-strip {
  overflow-x: auto;
  border-color: var(--ui-border);
  background: var(--ui-surface);
  scrollbar-width: thin;
}

.production-mode-nav { gap: 0; border-bottom: 1px solid var(--ui-border); }
.production-mode-nav button { min-height: 42px; padding: 0 16px; color: var(--ui-text-secondary); }
.production-mode-nav button.active { border-color: var(--ui-accent); color: var(--ui-accent); }

.production-workspace-switch { border-radius: var(--ui-radius-md); }
.production-workspace-switch button { min-height: 56px; color: var(--ui-text-secondary); }
.production-workspace-switch button:hover { background: var(--ui-surface-muted); color: var(--ui-text); }
.production-workspace-switch button.active { background: var(--ui-accent-soft); color: var(--ui-accent); box-shadow: inset 0 -2px var(--ui-accent); }

.production-flow-guide,
.workflow-run-strip {
  border-color: var(--ui-border);
  border-left-color: var(--ui-accent);
  border-radius: var(--ui-radius-md);
  background: var(--ui-surface);
}

.production-flow-meter,
.workflow-run-meter,
.v4-progress-line > div { background: var(--ui-surface-strong); }
.production-flow-meter span,
.workflow-run-meter span,
#v4-progress-fill { background: var(--ui-accent); }

.v4-studio,
.v5-editor,
.workflow-canvas { border-color: var(--ui-border); background: transparent; color: var(--ui-text); }
.v4-studio { padding: 20px; border: 1px solid var(--ui-border); border-radius: var(--ui-radius-md); background: var(--ui-surface); }
.v4-stage-nav { grid-template-columns: repeat(10, minmax(124px, 1fr)); border: 1px solid var(--ui-border); border-radius: var(--ui-radius-sm); }
.v4-stage-nav button { min-height: 54px; border-color: var(--ui-border); color: var(--ui-text-secondary); }
.v4-stage-nav button:hover { background: var(--ui-surface-muted); color: var(--ui-text); }
.v4-stage-nav button.active { background: var(--ui-accent-soft); color: var(--ui-accent); box-shadow: inset 0 -2px var(--ui-accent); }
.v4-stage-nav button span { color: inherit; }
.v4-panel { min-height: 0; padding: 20px; }
.v4-shot { border-color: var(--ui-border); border-radius: var(--ui-radius-sm); background: var(--ui-surface-muted); }
.v4-shot:hover { background: var(--ui-surface-muted); border-color: var(--ui-border-strong); transform: none; }

.v5-editor { border: 1px solid var(--ui-border); border-radius: var(--ui-radius-md); overflow: hidden; }
.v5-shot-bin,
.v5-inspector,
.v5-player-toolbar,
.v5-timeline-wrap,
.v5-stage-strip { background: var(--ui-surface); border-color: var(--ui-border); }
.v5-canvas-area,
.v5-player { background: var(--ui-surface-muted); }
.v5-shot:hover { background: var(--ui-surface-muted); }
.v5-shot.active { border-color: var(--ui-accent-border); background: var(--ui-accent-soft); }
.v5-clip { border-color: var(--ui-border); background: var(--ui-surface-muted); color: var(--ui-text); }
.v5-clip.active { border-color: var(--ui-accent); background: var(--ui-accent-soft); }

.workflow-canvas { border: 1px solid var(--ui-border); border-radius: var(--ui-radius-md); overflow: hidden; }
.workflow-canvas-shell,
.workflow-palette,
.workflow-inspector,
.workflow-stage,
.workflow-stage-toolbar,
.workflow-node { border-color: var(--ui-border); background: var(--ui-surface); }
.workflow-world { background-color: var(--ui-surface-muted); background-image: radial-gradient(var(--ui-border) 1px, transparent 1px); }
.workflow-node { box-shadow: none; }
.workflow-node.selected { border-color: var(--ui-accent); box-shadow: 0 0 0 1px var(--ui-accent); }

.works-title-row h2 { color: var(--ui-text); }
.works-tabs,
.works-bulk-bar { border-color: var(--ui-border); border-radius: var(--ui-radius-sm); background: var(--ui-surface); }
.works-tabs button.active { background: var(--ui-accent-soft); box-shadow: none; color: var(--ui-accent); }
.works-day-head { border-color: var(--ui-border); }
.work-card { border-color: var(--ui-border); border-radius: var(--ui-radius-md); box-shadow: none; }
.work-card:hover, .work-card:focus-within { border-color: var(--ui-border-strong); box-shadow: none; transform: none; }
.work-actions { border-radius: var(--ui-radius-sm); }

#admin .admin-grid,
#admin > .panel { margin-bottom: 20px; }

#admin section.panel.admin-panel-collapsed { padding-block: 8px; }
#admin section.panel.ui-panel-motion { overflow: clip; }
#admin .admin-collapse-toggle { color: var(--ui-text); transition: color var(--ui-motion-fast) var(--ui-ease-standard); }
#admin .admin-collapse-toggle:hover { color: var(--ui-accent); }

.asset-picker-dialog,
.work-info-dialog,
.works-compare-dialog {
  border-color: var(--ui-border);
  border-radius: var(--ui-radius-lg);
  background: var(--ui-surface);
  color: var(--ui-text);
  box-shadow: var(--ui-shadow-dialog);
}

.asset-picker-dialog[open],
.work-info-dialog[open],
.works-compare-dialog[open] { animation: ui-dialog-in var(--ui-motion-slow) var(--ui-ease-emphasized) both; }

@keyframes ui-dialog-in {
  from { opacity: 0; transform: translate3d(0, 12px, 0) scale(.985); }
  to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}

.asset-picker-dialog::backdrop,
.work-info-dialog::backdrop,
.works-compare-dialog::backdrop { background: rgb(17 19 26 / 42%); backdrop-filter: blur(2px); }

.app-topbar,
.page-header,
main > .view { width: min(100%, 1600px); margin-inline: auto; }

.page-header-actions:empty { display: none; }

.advanced-generation {
  margin-bottom: 16px;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-sm);
  background: var(--ui-surface);
}

.advanced-generation > summary {
  padding: 10px 12px;
  color: var(--ui-text-secondary);
  font-size: 13px;
  font-weight: 650;
  cursor: pointer;
}

.advanced-generation > .stack-form { padding: 0 12px 12px; }

details[open] > :not(summary) { animation: ui-detail-in var(--ui-motion-base) var(--ui-ease-emphasized) both; }

details > summary { transition: color var(--ui-motion-fast) var(--ui-ease-standard), background-color var(--ui-motion-fast) var(--ui-ease-standard); }
details > summary:hover { color: var(--ui-accent); }

.filter-bar-main,
.filter-more-content {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-bar-main { flex: 1 1 620px; }
.filter-bar-main > input:first-child { flex: 1 1 260px; }

.filter-more { position: relative; }

.filter-more > summary,
.task-more-actions > summary {
  display: grid;
  min-height: 36px;
  align-items: center;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-sm);
  background: var(--ui-surface);
  color: var(--ui-text-secondary);
  font-size: 13px;
  font-weight: 650;
  cursor: pointer;
  list-style: none;
}

.filter-more > summary { padding: 0 11px; }
.filter-more > summary::-webkit-details-marker,
.task-more-actions > summary::-webkit-details-marker { display: none; }
.filter-more[open] > summary { border-color: var(--ui-accent-border); color: var(--ui-accent); }

.filter-more-content {
  width: 100%;
  margin-top: 8px;
  padding: 10px;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-sm);
  background: var(--ui-surface-muted);
}

.task-filter-bar,
.asset-filter-bar { align-items: flex-start; }

.compact-task {
  grid-template-columns: 20px max-content minmax(260px, 1fr) minmax(120px, 220px) auto;
  gap: 12px;
}

.task-main,
.task-media-column { min-width: 0; }
.task-main small { overflow-wrap: anywhere; }
.task-actions { justify-content: flex-end; }

.task-more-actions { position: relative; }
.task-more-actions > summary { width: 36px; padding: 0; place-items: center; font-size: 18px; letter-spacing: 0; }
.task-more-actions[open] > summary { border-color: var(--ui-accent-border); color: var(--ui-accent); }

.task-more-actions-menu {
  position: absolute;
  z-index: 40;
  top: calc(100% + 6px);
  right: 0;
  display: grid;
  min-width: 144px;
  gap: 6px;
  padding: 8px;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-md);
  background: var(--ui-surface);
  box-shadow: var(--ui-shadow-float);
}

.task-more-actions-menu button { width: 100%; }

.asset-library {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(228px, 1fr));
  gap: 16px;
}

.asset-library .asset-tile {
  width: auto;
  min-width: 0;
  overflow: hidden;
  padding: 0;
  border-color: var(--ui-border);
  border-radius: var(--ui-radius-md);
  background: var(--ui-surface);
  transition: border-color var(--ui-motion-fast) var(--ui-ease-standard), transform var(--ui-motion-base) var(--ui-ease-emphasized);
}

.asset-library .asset-tile:hover { border-color: var(--ui-border-strong); transform: translateY(-2px); }

.asset-library .asset-preview img {
  height: auto;
  aspect-ratio: 4 / 3;
  border-radius: 0;
  object-fit: cover;
}

.asset-library .asset-tile-meta { display: grid; gap: 12px; padding: 12px; }
.asset-library > .ui-empty-state,
.asset-library > .ui-loading-state { grid-column: 1 / -1; }

.works-title-row h2 { font-size: 18px; }
.works-bulk-bar:not(.has-selection) > :not(#works-select-all) { display: none; }
.works-empty strong,
.ui-empty-state strong { display: block; margin-bottom: 4px; color: var(--ui-text); font-size: 15px; }
.works-empty p,
.ui-empty-state p { margin: 0 0 12px; color: var(--ui-text-secondary); }
.ui-error-state { border-color: var(--ui-danger-border); }

.admin-settings-nav {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  gap: 2px;
  margin-bottom: 20px;
  padding: 6px;
  overflow-x: auto;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-sm);
  background: var(--ui-surface);
}

.admin-settings-nav button {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  gap: 8px;
  border: 0;
  border-radius: var(--ui-radius-sm);
  padding: 0 12px;
  background: transparent;
  color: var(--ui-text-secondary);
  font-size: 13px;
  font-weight: 650;
  white-space: nowrap;
}

.admin-settings-nav button::after {
  min-width: 18px;
  border-radius: 999px;
  padding: 2px 5px;
  background: var(--ui-surface-muted);
  color: var(--ui-text-tertiary);
  content: attr(data-count);
  font-size: 10px;
  text-align: center;
}

.admin-settings-nav button:hover:not(:disabled) { background: var(--ui-surface-muted); color: var(--ui-text); }
.admin-settings-nav button:disabled { opacity: .42; }
#admin section.panel { scroll-margin-top: 60px; }

.primary:active:not(:disabled),
.secondary:active:not(:disabled),
.danger-link:active:not(:disabled),
.ui-button:active:not(:disabled),
.ui-icon-button:active:not(:disabled) { transform: translateY(1px) scale(.985); }

@media (hover: hover) {
  .primary:hover:not(:disabled),
  .ui-button--primary:hover:not(:disabled),
  .ui-icon-button:hover:not(:disabled) { transform: translateY(-1px); }
}

.status.running::before,
.production-status-tag.running::before { animation: ui-status-breathe 1.35s var(--ui-ease-standard) infinite; }

.ui-loading-state,
.works-loading { animation: ui-loading-breathe 1.4s ease-in-out infinite; }

@keyframes ui-loading-breathe {
  0%, 100% { opacity: .52; }
  50% { opacity: 1; }
}

@media (max-width: 1279px) {
  .app-shell { grid-template-columns: 216px minmax(0, 1fr); }
  main { padding-inline: 24px; }
  .studio-grid { grid-template-columns: minmax(0, 1fr) 246px; }
}

@media (max-width: 1023px) {
  .app-shell { grid-template-columns: 196px minmax(0, 1fr); }
  main { padding-inline: 20px; }
  .workbench-layout { grid-template-columns: 210px minmax(0, 1fr); }
  .studio-grid { grid-template-columns: 1fr; }
  .settings-panel { position: static; }
  .production-workspace-switch { grid-template-columns: repeat(4, minmax(152px, 1fr)); }
  .v5-edit-grid { grid-template-columns: 190px minmax(0, 1fr); }
  .v5-inspector { grid-column: 1 / -1; border-top: 1px solid var(--ui-border); border-left: 0; }
  .compact-task { grid-template-columns: 20px max-content minmax(240px, 1fr) auto; }
  .compact-task .task-media-column { grid-column: 3 / 4; }
  .compact-task .task-actions { grid-column: 4; grid-row: 1 / span 2; }
}

@media (max-width: 767px) {
  body.sidebar-open { overflow: hidden; }
  .app-shell { display: block; }
  .sidebar {
    position: fixed;
    z-index: 1800;
    top: 0;
    bottom: 0;
    left: 0;
    width: min(288px, calc(100vw - 56px));
    height: 100dvh;
    transform: translateX(-105%);
    transition: transform 180ms ease;
    box-shadow: var(--ui-shadow-dialog);
  }
  body.sidebar-open .sidebar { transform: translateX(0); }
  .sidebar-backdrop { position: fixed; z-index: 1700; inset: 0; display: block; visibility: hidden; border: 0; background: rgb(17 19 26 / 42%); opacity: 0; pointer-events: none; transition: opacity var(--ui-motion-base) var(--ui-ease-standard), visibility var(--ui-motion-base) step-end; }
  body.sidebar-open .sidebar-backdrop { visibility: visible; opacity: 1; pointer-events: auto; transition-timing-function: var(--ui-ease-standard), step-start; }
  main { padding: 0 16px 32px; }
  .app-topbar { min-height: 54px; }
  .app-topbar #sidebar-toggle { display: inline-grid; }
  .page-header { gap: 16px; padding: 20px 0; }
  .page-header-actions { width: 100%; justify-content: flex-start; }
  .page-description { font-size: 12px; }
  .section-bar,
  .panel-title,
  .v4-panel-bar,
  .v5-topbar,
  .workflow-canvas-topbar,
  .production-collab-head { align-items: flex-start; flex-direction: column; }
  .panel { padding: 16px; }
  .workbench-layout { grid-template-columns: 1fr; gap: 16px; }
  .model-panel { position: static; max-height: none; }
  .model-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .model-row { min-height: 84px; }
  .production-header-actions { width: 100%; align-items: stretch; flex-direction: column; }
  .production-header-actions label { width: 100%; }
  .production-mode-nav { width: calc(100% + 32px); margin-inline: -16px; }
  .production-mode-nav button { flex: 0 0 auto; }
  .production-workspace-switch { grid-template-columns: repeat(4, minmax(146px, 1fr)); }
  .v4-studio { padding: 16px; }
  .v4-stage-nav { width: calc(100% + 32px); margin-inline: -16px; border-right: 0; border-left: 0; border-radius: 0; }
  .v4-panel { padding: 0; border: 0; background: transparent; }
  .v4-form-grid,
  .v4-storyboard-meta { grid-template-columns: 1fr; }
  .v4-progress-line { grid-template-columns: minmax(0, 1fr) auto; }
  .v4-progress-line small { display: none; }
  .v5-edit-grid { grid-template-columns: 1fr; min-height: 0; }
  .v5-shot-bin { border-right: 0; border-bottom: 1px solid var(--ui-border); }
  .v5-shot-list { display: flex; max-height: none; overflow-x: auto; padding: 8px; }
  .v5-shot { flex: 0 0 210px; }
  .v5-canvas-area { grid-template-rows: minmax(290px, 48vh) auto 190px; }
  .v5-player-toolbar { align-items: stretch; flex-direction: column; }
  .v5-player-toolbar > div { justify-content: space-between; }
  .v5-inspector { grid-column: auto; }
  .workflow-canvas-shell { grid-template-columns: 1fr; min-height: 0; }
  .workflow-palette,
  .workflow-inspector { border: 0; border-bottom: 1px solid var(--ui-border); }
  .workflow-palette { max-height: 200px; }
  .workflow-node-palette { grid-template-columns: repeat(2, minmax(0, 1fr)); max-height: 174px; }
  .workflow-inspector { max-height: 380px; }
  .workflow-stage-wrap { min-height: 500px; }
  .works-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .work-card { min-height: 210px; }
  .work-card { overflow: visible; aspect-ratio: auto; min-height: 0; background: transparent; }
  .work-card video { height: auto; aspect-ratio: 9 / 16; border-radius: var(--ui-radius-md); }
  .work-actions { position: relative; inset: auto; margin-top: 8px; border-color: var(--ui-border); background: var(--ui-surface); opacity: 1; transform: none; }
  .work-actions button,
  .work-actions a { border-color: var(--ui-border); background: var(--ui-surface-muted); color: var(--ui-text-secondary); }
  .admin-grid { grid-template-columns: 1fr; }
  .operations-toolbar { align-items: stretch; }
  .operations-toolbar input,
  .operations-toolbar select { width: 100%; }
  .filter-bar-main,
  .filter-more,
  .filter-more-content { width: 100%; }
  .filter-more-content { align-items: stretch; flex-direction: column; }
  .filter-more-content button { width: 100%; }
  .compact-task { grid-template-columns: 20px minmax(0, 1fr) auto; }
  .compact-task > .status { grid-column: 2 / -1; }
  .compact-task .task-main,
  .compact-task .task-media-column,
  .compact-task .task-actions { grid-column: 2 / -1; grid-row: auto; }
  .compact-task .task-actions { justify-content: flex-start; }
  .task-more-actions-menu { right: auto; left: 0; }
  .asset-library { grid-template-columns: 1fr; }
  .asset-library .asset-tile { width: 100%; }
  .nav:hover { transform: none; }
  .page-header::after { transform: scaleX(.12); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ui-item-enter,
  .page-header-copy.ui-header-enter,
  main > .view.ui-view-enter > *,
  details[open] > :not(summary),
  .status.running::before,
  .production-status-tag.running::before,
  .ui-loading-state,
  .works-loading { animation: none !important; }
  .nav:hover,
  .model-row:hover,
  .task:hover,
  .asset-library .asset-tile:hover { transform: none; }
}