/* Mobile app shell, bottom dock, safe areas, touch-first controls */

@media (max-width: 920px) {
  :root {
    --mobile-dock-h: calc(56px + var(--safe-area-bottom));
    --rail-w: 0px;
    --topbar-h: calc(var(--topbar-main-h) + var(--safe-area-top));
  }

  .app-shell {
    padding-bottom: var(--mobile-dock-h);
  }

  .workspace {
    padding-bottom: 0;
  }

  .modeling-context-bar #validationFab {
    display: none !important;
  }

  .mobile-dock {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
    min-height: var(--mobile-dock-h);
    padding: 6px max(4px, var(--safe-area-left)) calc(6px + var(--safe-area-bottom))
      max(4px, var(--safe-area-right));
    border-top: var(--glass-pane-border);
    background: var(--workspace-bar-bg);
    box-shadow:
      var(--glass-pane-highlight),
      0 -8px 24px rgba(2, 6, 8, 0.22);
    backdrop-filter: var(--glass-pane-blur);
    -webkit-backdrop-filter: var(--glass-pane-blur);
    display: flex;
    align-items: stretch;
  }

  .mobile-dock-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    min-height: 44px;
    padding: 4px 2px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    transition:
      color var(--transition),
      background var(--transition),
      border-color var(--transition),
      transform var(--transition);
    -webkit-tap-highlight-color: transparent;
    flex: 1 1 0;
    min-width: 0;
  }

  .mobile-dock-item:hover,
  .mobile-dock-item:focus-visible {
    outline: none;
    color: var(--text);
    background: color-mix(in srgb, var(--surface-3) 72%, transparent);
  }

  .mobile-dock-item:active {
    transform: scale(0.96);
  }

  .mobile-dock-item.is-active {
    color: var(--accent-light);
    border-color: color-mix(in srgb, var(--accent) 38%, transparent);
    background: color-mix(in srgb, var(--accent-glow) 32%, var(--surface-3) 68%);
  }

  .mobile-dock-icon {
    width: 20px;
    height: 20px;
  }

  .mobile-dock-label {
    font: 700 8px/1 var(--font-display);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    white-space: nowrap;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .mobile-dock-validation {
    gap: 2px;
  }

  .mobile-dock-validation-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
    background: #22c55e;
  }

  .mobile-dock-validation.validation-state-error .mobile-dock-validation-dot {
    background: #ef4444;
  }

  .mobile-dock-validation.validation-state-warning .mobile-dock-validation-dot {
    background: #f59e0b;
  }

  .mobile-dock-validation.validation-state-ok .mobile-dock-validation-dot {
    background: #22c55e;
  }

  .mobile-dock-validation.validation-is-running .mobile-dock-validation-dot {
    background: var(--accent-light);
    animation: mobile-dock-validation-pulse 0.9s ease-in-out infinite;
  }

  .app-shell:has(.workspace.artifact-mode) .mobile-dock-item[data-dock-action="chat"] {
    display: none;
  }

  .app-shell:has(.workspace.artifact-mode) .mobile-dock {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .mobile-backdrop {
    display: none !important;
  }
}

@keyframes mobile-dock-validation-pulse {
  50% {
    transform: scale(0.72);
    opacity: 0.65;
  }
}

@media (max-width: 560px) {
  :root {
    --topbar-main-h: 48px;
  }

  .mobile-dock-label {
    font-size: 7px;
  }

  .mobile-dock-item {
    min-height: 42px;
    gap: 2px;
  }
}

@media (min-width: 921px) {
  .mobile-dock {
    display: none;
  }
}

/* Keep the primary row intentionally small on phones.  Lifecycle actions and
 * view tools belong to the Tools surface at this size; letting them remain
 * inline makes the topbar grow unpredictably and pushes controls over the
 * canvas. */
@media (max-width: 920px) {
  .palette-item {
    touch-action: none;
  }

  .palette-item.is-touch-dragging {
    opacity: 0.52;
    outline: 1px solid color-mix(in srgb, var(--accent) 68%, transparent);
  }

  .topbar {
    min-height: var(--topbar-h);
    height: var(--topbar-h);
  }

  .topbar-menu-strip {
    min-height: var(--topbar-main-h);
    height: var(--topbar-main-h);
    flex: 0 0 var(--topbar-main-h);
    justify-content: space-between;
  }

  .topbar-left {
    flex: 1 1 auto;
    justify-content: center;
  }

  .mobile-dock-save.is-dirty {
    color: var(--warning);
    border-color: color-mix(in srgb, var(--warning) 54%, transparent);
    background: color-mix(in srgb, var(--warning) 12%, transparent);
  }

  .topbar .topbar-menu-toggle {
    display: none !important;
  }

  .topbar-collapse,
  .topbar.mobile-menu-open .topbar-collapse {
    display: none !important;
    position: fixed;
    left: max(8px, var(--safe-area-left));
    right: max(8px, var(--safe-area-right));
    top: calc(var(--topbar-h) + 8px);
    bottom: calc(var(--mobile-dock-h, 0px) + 8px);
    width: auto;
    height: auto;
    max-height: none;
    min-width: 0;
    padding: 12px;
    overflow-x: hidden;
    overflow-y: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    border: var(--glass-pane-border);
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--glass-pane-bg) 96%, var(--surface-2) 4%);
    box-shadow: var(--glass-pane-highlight), var(--shadow-lg);
    backdrop-filter: var(--glass-pane-blur);
    -webkit-backdrop-filter: var(--glass-pane-blur);
  }

  .topbar.mobile-menu-open .topbar-collapse {
    display: flex !important;
  }

  .topbar-collapse .model-lifecycle {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    width: 100%;
    align-items: stretch;
    gap: 8px;
    padding: 8px;
  }

  .topbar-collapse .model-lifecycle-heading {
    display: grid;
    min-width: 0;
    padding: 0 2px;
  }

  .topbar-collapse .model-lifecycle-tools {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .topbar-collapse .model-lifecycle-group {
    min-width: 0;
    padding: 5px;
  }

  .topbar-collapse .model-lifecycle-group-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px;
  }

  .topbar-collapse .model-lifecycle-group-deliver .model-lifecycle-group-actions {
    grid-template-columns: minmax(0, 1fr);
  }

  .topbar-collapse .topbar-ide-btn {
    width: 100%;
    min-width: 0;
  }

  .topbar-collapse .tabs {
    display: flex;
    width: 100%;
    flex: 0 0 auto;
    margin: 0;
    overflow: visible;
    border-bottom: 1px solid color-mix(in srgb, var(--border) 55%, transparent);
  }

  .topbar-collapse .tab {
    width: 100%;
    text-align: left;
  }

  .topbar-collapse .modeling-context-bar {
    display: contents;
  }

  .topbar-collapse .model-workbench-commandbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    width: 100%;
    min-width: 0;
    min-height: 0;
    height: auto;
    align-content: start;
    gap: 8px;
    overflow: visible;
  }

  .topbar-collapse .workbench-divider,
  .topbar-collapse .workbench-section-label,
  .topbar-collapse .workbench-control-label {
    display: none;
  }

  .topbar-collapse .workbench-view-section,
  .topbar-collapse .workbench-context-slot,
  .topbar-collapse .workbench-action-group,
  .topbar-collapse .workbench-persist-group {
    width: 100%;
    min-width: 0;
    margin: 0;
  }

  .topbar-collapse .workbench-inspect-inline {
    display: none;
  }

  .topbar-collapse .workbench-view-section,
  .topbar-collapse .workbench-context-slot,
  .topbar-collapse .workbench-persist-group {
    display: flex;
  }

  .topbar-collapse #saveModelBtn {
    display: none !important;
  }

  .topbar-collapse .workbench-view-select-wrap,
  .topbar-collapse .workbench-view-select,
  .topbar-collapse .workbench-inspect-menu-wrap,
  .topbar-collapse .workbench-inspect-select,
  .topbar-collapse .workbench-context-slot > *,
  .topbar-collapse .workbench-persist-group > * {
    width: 100%;
    max-width: none;
  }

  .topbar-collapse .workbench-action-group {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
    overflow: visible;
  }

  .topbar-collapse .workbench-tool-cluster {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    min-width: 0;
    gap: 4px;
  }

  .topbar-collapse .workbench-btn-group {
    display: flex;
    width: 100%;
    min-width: 0;
  }

  .topbar-collapse .workbench-btn-group .sidebar-inline-action {
    flex: 1 1 0;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .topbar-collapse .workbench-persist-group {
    display: flex;
  }

  .topbar-collapse .validation-status-chip {
    width: 100%;
    justify-content: flex-start;
    margin: 0;
  }

  .canvas-zoom-control {
    bottom: 4px;
  }
}

@media (min-width: 921px) and (max-width: 1100px) {
  .topbar-collapse .validation-status-chip {
    align-self: flex-end;
    margin-left: auto;
  }
}

@media (max-width: 420px) {
  .topbar-collapse .model-lifecycle-tools {
    grid-template-columns: minmax(0, 1fr);
  }

  .topbar-collapse .workbench-btn-group {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topbar-collapse #relationshipTreeToggleBtn {
    grid-column: 1 / -1;
  }
}