/*
 * Shared presentation refinement, loaded after the existing feature styles.
 * Keep the deep-green / teal identity, home exhibition and engineering drawings.
 * Functional pages use quieter containers, readable type and stable controls.
 * This layer does not hide data, alter device-state colors or reorder workflows.
 */

.app-shell[data-active-page],
.login-screen {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

.app-shell {
  --refinement-canvas: #071f21;
  --refinement-sidebar: #0a2627;
  --refinement-surface: #0d2c2e;
  --refinement-raised: #163c3a;
  --refinement-line: #1f3739;
  --refinement-selected: #1a5249;
  --refinement-muted: #a6d0cb;
  --refinement-body-size: 14px;
  --refinement-note-size: 12px;
  --refinement-control-size: 13px;
  --refinement-section-gap: 20px;
}

.app-shell ::selection {
  color: var(--home-bg-deepest, #021314);
  background: var(--home-accent-strong, #7ef0e2);
}

.app-shell :is(input, textarea) {
  caret-color: var(--home-accent-strong, #7ef0e2);
}

.app-shell a {
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

/* Shared shell: retain the centered partner lockup and original brand artwork. */
.app-shell[data-active-page] .dashboard,
.app-shell[data-active-page] .platform-header {
  background: var(--refinement-canvas);
}

.app-shell[data-active-page] .sidebar {
  background: var(--refinement-sidebar);
  border-right-color: var(--refinement-line);
  box-shadow: none;
}

.app-shell[data-active-page] .platform-header {
  border-bottom-color: var(--refinement-line);
  box-shadow: none;
}

.app-shell[data-active-page] .platform-brand::before,
.app-shell[data-active-page] .platform-brand::after,
.app-shell[data-active-page] .platform-brand-title::before,
.app-shell[data-active-page] .platform-brand-title::after {
  content: none;
}

.app-shell[data-active-page] .platform-brand-title {
  filter: none;
}

.app-shell[data-active-page] .platform-brand strong,
.app-shell[data-active-page] .platform-brand-title-mobile {
  font-weight: 650;
  text-shadow: none;
}

.app-shell[data-active-page] .platform-title-copy small {
  color: var(--refinement-muted);
  font-weight: 400;
  letter-spacing: 0.03em;
}

.app-shell[data-active-page] .brand-logo-panel {
  width: min(100%, 148px);
  min-height: 52px;
  padding: 7px 10px;
  border-color: transparent;
  border-radius: 8px;
  box-shadow: none;
}

.app-shell[data-active-page] .brand-site strong {
  font-weight: 650;
}

.app-shell[data-active-page] :is(.brand-site span, .nav-item, .session-card small, .session-card div span) {
  color: var(--refinement-muted);
}

.app-shell[data-active-page] .nav-list {
  gap: 6px;
}

.app-shell[data-active-page] .nav-item {
  border-color: transparent;
  border-radius: 8px;
  font-weight: 500;
  box-shadow: none;
}

.app-shell[data-active-page] .nav-item .icon {
  color: currentColor;
}

.app-shell[data-active-page] .nav-item:hover {
  color: var(--home-text-strong);
  background: var(--refinement-raised);
}

.app-shell[data-active-page] .nav-item.active {
  color: var(--home-text-strong);
  background: var(--refinement-selected);
  border-color: transparent;
  font-weight: 650;
  box-shadow: none;
}

.app-shell[data-active-page] :is(.sidebar-toggle, .mobile-menu-toggle) {
  color: var(--refinement-muted);
  background: transparent;
  border-color: var(--refinement-line);
}

.app-shell[data-active-page] :is(.sidebar-toggle, .mobile-menu-toggle):hover {
  background: var(--refinement-raised);
}

.app-shell[data-active-page] .session-card {
  background: transparent;
  border-color: var(--refinement-line);
  box-shadow: none;
}

.app-shell[data-active-page] .session-avatar {
  color: var(--home-accent-strong);
  background: var(--refinement-raised);
  font-weight: 600;
}

.app-shell[data-active-page] .platform-meta :is(.weather-strip, .status-strip) {
  box-shadow: none;
}

/* Connection/weather errors keep their semantic fills; only neutral chrome is reset. */
.app-shell[data-active-page] .platform-meta :is(.weather-strip, .status-strip):where(:not(.is-error, .is-stale, .is-client-offline)) {
  background: transparent;
  border-color: transparent;
}

/* Page shells, never the nested home-page class used by the monitor's 3D view. */
.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-command-center,
  .algorithm-page,
  .quality-page
) {
  background: var(--refinement-canvas);
}

/* The exhibition body and fixed engineering canvases retain their own geometry. */
.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .energy-panel,
  .opt-module-card,
  .monitor-system-pane,
  .monitor-device-card,
  .monitor-pump-card,
  .monitor-storage-card,
  .monitor-meter-body .panel,
  .quality-page .panel,
  .algorithm-page .panel
) {
  background: var(--refinement-surface);
  border-color: var(--refinement-line);
  box-shadow: none;
  border-radius: 14px;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-kpi-card,
  .quality-kpi,
  .monitor-overview-card,
  .monitor-meter-body .meter-card,
  .monitor-mcc-card,
  .monitor-equipment-layout-card,
  .monitor-pump-realtime-card,
  .monitor-valve-card
) {
  box-shadow: none;
  animation: none;
  background: var(--refinement-surface);
  border-radius: 14px;
}

/* These pseudo-elements are decorative highlights, not device state indicators. */
.app-shell[data-active-page="monitor"] .monitor-pump-card::after,
.app-shell[data-active-page="monitor"] .monitor-storage-card::after {
  content: none;
}

/* Equipment card borders remain wholly owned by the live/fault/delayed state layer. */
.app-shell[data-active-page="monitor"] .monitor-equipment-page :is(
  .monitor-mcc-heading,
  .monitor-equipment-layout-heading,
  .monitor-pump-realtime-heading,
  .monitor-valve-heading,
  .monitor-mcc-visual,
  .monitor-equipment-layout-visual,
  .monitor-pump-realtime-visual,
  .monitor-valve-visual
) {
  background: transparent;
  border-color: var(--refinement-line);
}

/* Meter illustrations are supplied device artwork, not monochrome interface icons. */
.app-shell[data-active-page="monitor"] .monitor-meter-body .equipment-image {
  mix-blend-mode: normal;
  filter: none;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .energy-quality-strip,
  .opt-source-strip,
  .operations-source-strip,
  .diagram-inspector,
  .algorithm-conversation
) {
  background: var(--refinement-surface);
  border-color: var(--refinement-line);
  box-shadow: none;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .report-summary-grid > div,
  .report-sections li,
  .opt-module-metrics > div,
  .quality-facts,
  .quality-facts > div,
  .operations-stage-list > div
) {
  background: var(--refinement-raised);
  border-color: var(--refinement-line);
  box-shadow: none;
}

.app-shell[data-active-page="monitor"] .monitor-equipment-page :is(
  .monitor-mcc-param,
  .monitor-equipment-kpi,
  .monitor-pump-parameter,
  .monitor-valve-parameter
) {
  background: var(--refinement-raised);
  border-color: var(--refinement-line);
}

/* Explicit device fault/delay borders and chart series colors remain untouched. */
.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-kpi-card,
  .quality-kpi,
  .energy-panel,
  .opt-module-card
):hover {
  transform: none;
  box-shadow: none;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-heading,
  .algorithm-heading,
  .quality-heading
) {
  gap: 12px;
  align-items: center;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-heading h1,
  .algorithm-topbar h1,
  .quality-topbar h1
) {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
  text-shadow: none;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-heading p,
  .algorithm-topbar .page-summary,
  .quality-topbar .page-summary,
  .algorithm-topbar .context-line,
  .quality-topbar .context-line
) {
  margin-top: 5px;
  color: var(--refinement-muted);
  font-size: var(--refinement-note-size);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.03em;
  overflow-wrap: anywhere;
}

/* Keep supplied icon artwork; remove the second illuminated box around it. */
.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-heading-icon,
  .algorithm-heading-icon,
  .quality-heading-icon
) {
  width: 40px;
  height: 40px;
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-heading-icon,
  .algorithm-heading-icon,
  .quality-heading-icon
) img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-section-icon,
  .quality-section-icon,
  .monitor-overview-icon,
  .monitor-device-icon,
  .energy-rank-icon
) {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border-color: transparent;
  background: transparent;
  box-shadow: none;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-section-icon,
  .quality-section-icon,
  .monitor-overview-icon,
  .monitor-device-icon,
  .energy-rank-icon
) img {
  width: 30px;
  height: 30px;
  object-fit: contain;
}

/* Metrics retain complete readings and give the number more room than the icon. */
.app-shell[data-active-page]:not([data-active-page="home"]) :is(.monitor-kpi-card, .quality-kpi) {
  grid-template-columns: 36px minmax(0, 1fr);
  min-height: 100px;
  gap: 12px;
  padding: 16px;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(.monitor-kpi-icon, .quality-kpi-icon) {
  width: 36px;
  height: 36px;
  border-color: transparent;
  background: transparent;
  box-shadow: none;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(.monitor-kpi-icon, .quality-kpi-icon) img {
  width: 34px;
  height: 34px;
}

.app-shell[data-active-page]:not([data-active-page="home"]) .monitor-kpi-card .monitor-kpi-icon {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(.monitor-kpi-card, .quality-kpi) > div > span {
  font-size: var(--refinement-control-size);
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 6px;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(.monitor-kpi-card, .quality-kpi) strong {
  max-width: 100%;
  overflow: visible;
  font-size: 30px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  letter-spacing: -0.02em;
  white-space: normal;
  overflow-wrap: anywhere;
  text-shadow: none;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(.monitor-kpi-card, .quality-kpi) small {
  overflow: visible;
  margin-left: 0;
  font-size: var(--refinement-note-size);
  font-weight: 500;
  line-height: 1.5;
  white-space: normal;
  overflow-wrap: anywhere;
}

/* Consistent title/body/note hierarchy without changing diagram label geometry. */
.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .energy-panel-head h2,
  .opt-module-head h3,
  .section-title h2,
  .monitor-system-head h2
) {
  font-size: 17px;
  font-weight: 650;
  line-height: 1.45;
  letter-spacing: 0;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .energy-panel-head,
  .opt-module-head,
  .monitor-system-head
) {
  gap: 12px 16px;
  min-height: 68px;
  height: auto;
  background: transparent;
  border-color: var(--refinement-line);
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .energy-panel-head p,
  .section-title p,
  .chart-heading p,
  .ranking-period-note,
  .trend-note,
  .monitor-device-head p,
  .monitor-system-head > span,
  .monitor-overview-card p,
  .monitor-overview-card small,
  .monitor-kpi-card small,
  .monitor-meter-body .meter-total small,
  .monitor-meter-body .metric-card-unit,
  .monitor-meter-body .device-facts dt,
  .quality-facts dt,
  .quality-flag-item span,
  .quality-notice,
  .formula-hint,
  .empty-state,
  .energy-quality-strip span,
  .operations-source-strip span,
  .operations-source-strip time,
  .operations-alert-table td small,
  .operations-empty-copy,
  .operations-evidence-list small,
  .operations-channel-list small,
  .algorithm-assistant-form > small,
  .algorithm-assistant-head > span,
  .report-range-note,
  .report-summary-grid dt,
  .report-sections small,
  .opt-source-strip span,
  .opt-source-strip time,
  .opt-model-note,
  .opt-policy-note,
  .opt-module-metrics dt,
  .opt-module-metrics dd small,
  .opt-policy-section-head p,
  .opt-chart-legend,
  .algorithm-assistant-form > label,
  .monitor-meter-body .device-id,
  .chart-empty span
) {
  font-size: var(--refinement-note-size);
  font-weight: 400;
  line-height: 1.6;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .energy-panel-head p,
  .section-title p,
  .chart-heading p,
  .monitor-device-head p,
  .ranking-period-note,
  .trend-note,
  .report-range-note,
  .opt-module-metrics dt,
  .opt-module-metrics dd small,
  .opt-policy-section-head p,
  .algorithm-assistant-form > label
) {
  color: var(--refinement-muted);
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .algorithm-message p,
  .opt-module-card > p,
  .carbon-standard-list,
  .chart-empty p
) {
  font-size: var(--refinement-body-size);
  line-height: 1.7;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .mode-badge,
  .status-pill,
  .range-badge,
  .monitor-head-status,
  .algorithm-connection-state,
  .operations-severity,
  .operations-standard-badge,
  .operations-interface-tag,
  .operations-channel-list strong
) {
  max-width: 100%;
  font-size: var(--refinement-note-size);
  font-weight: 600;
  line-height: 1.5;
  white-space: normal;
  overflow-wrap: anywhere;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(.table-wrap, .operations-alert-table) th {
  color: var(--refinement-muted);
  background: var(--refinement-raised);
  border-bottom-color: var(--refinement-line);
  font-size: var(--refinement-note-size);
  line-height: 1.5;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(.table-wrap, .operations-alert-table) td {
  border-bottom-color: var(--refinement-line);
  font-size: var(--refinement-control-size);
  line-height: 1.6;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(.table-wrap, .operations-alert-table, .quality-table) {
  background: var(--refinement-surface);
  border-color: var(--refinement-line);
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(.table-wrap, .operations-alert-table) tbody tr:hover {
  background: var(--refinement-raised);
}

.app-shell[data-active-page]:not([data-active-page="home"]) .chart-axis-label {
  font-size: var(--refinement-note-size);
  font-weight: 500;
}

/* Flex chart wrappers must stretch the empty state, not its intrinsic text width. */
.app-shell[data-active-page]:not([data-active-page="home"]) .energy-chart > .chart-empty {
  flex: 1 1 100%;
  width: 100%;
  min-width: 0;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .ghost-button,
  .report-presets button,
  .report-export-button,
  .monitor-tab,
  .monitor-pump-granularity button,
  .ranking-period-switch button,
  .trend-granularity button,
  .operations-filter button,
  .analysis-mode-button,
  .analysis-primary-button
) {
  min-height: 38px;
  font-size: var(--refinement-control-size);
  font-weight: 600;
  line-height: 1.4;
  box-shadow: none;
}

/* Segmented navigation is a quiet selected surface; primary actions keep brand teal. */
.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-tabbar,
  .monitor-pump-granularity,
  .ranking-period-switch,
  .trend-granularity,
  .operations-filter
) {
  background: var(--refinement-canvas);
  border-color: var(--refinement-line);
  box-shadow: none;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-tab,
  .monitor-pump-granularity button,
  .ranking-period-switch button,
  .trend-granularity button,
  .operations-filter button,
  .report-presets button,
  .analysis-mode-button
) {
  color: var(--refinement-muted);
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-tab,
  .monitor-pump-granularity button,
  .ranking-period-switch button,
  .trend-granularity button,
  .operations-filter button,
  .report-presets button,
  .analysis-mode-button
):hover {
  color: var(--home-text-strong);
  background: var(--refinement-raised);
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-tab.is-active,
  .monitor-pump-granularity button.is-active,
  .ranking-period-switch button[aria-pressed="true"],
  .trend-granularity button[aria-pressed="true"],
  .operations-filter button.is-active,
  .report-presets button.is-active,
  .analysis-mode-button.is-active
) {
  color: var(--home-text-strong);
  background: var(--refinement-selected);
  border-color: var(--refinement-selected);
  box-shadow: none;
}

.app-shell[data-active-page="monitor"] .monitor-tab img {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

.app-shell[data-active-page="monitor"] .monitor-tab:is(:hover, .is-active) img {
  background: transparent;
  transform: none;
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .ghost-button,
  .report-field input,
  .algorithm-assistant-form input,
  .diagram-inspector-body select
) {
  color: var(--home-text-strong);
  background: var(--refinement-raised);
  border-color: var(--home-line);
  border-radius: 8px;
  box-shadow: none;
}

.app-shell[data-active-page]:not([data-active-page="home"]) .ghost-button:hover {
  background: var(--refinement-selected);
  border-color: var(--home-accent);
}

.app-shell[data-active-page="monitor"] .monitor-equipment-page .equipment-filters :is(input, select, button) {
  background: var(--refinement-raised);
  border-color: var(--home-line);
}

.app-shell[data-active-page="monitor"] .monitor-equipment-page .equipment-filters button[aria-pressed="true"] {
  background: var(--refinement-selected);
  border-color: var(--home-accent);
}

/* Workbench-specific chrome; no changes to its task states or two-column grid. */
#operationsPage .ops-button:not(.is-primary) {
  background: var(--refinement-raised);
  border-color: var(--home-line);
  border-radius: 8px;
}

#operationsPage [data-ops-form] :is(input, select, textarea) {
  background: var(--refinement-raised);
  border-color: var(--home-line);
  border-radius: 8px;
}

#operationsPage :is(.ops-record, .ops-selection-context, .ops-audit) {
  border-color: var(--refinement-line);
}

#operationsPage .ops-record:hover,
#operationsPage .ops-record.is-selected {
  background: var(--refinement-selected);
}

/* Page sections get space; grouped controls and related values stay together. */
.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .energy-main-grid,
  .energy-group-grid,
  .carbon-chart-grid,
  .report-summary-grid,
  .algorithm-command-grid,
  .algorithm-lower-grid,
  .quality-layout
) {
  gap: var(--refinement-section-gap);
}

.app-shell[data-active-page]:not([data-active-page="home"]) :is(
  .monitor-kpi-ribbon,
  .energy-kpi-ribbon,
  .monitor-head
) {
  margin-bottom: var(--refinement-section-gap);
}

.app-shell .session-card :is(small, div span) {
  font-size: 12px;
  line-height: 1.45;
}

.app-shell[data-active-page="home"] .cockpit-kpi > div > span,
.app-shell[data-active-page="home"] .cockpit-kpi small {
  font-size: 12px;
  line-height: 1.5;
}

/* Exhibition and control-room displays: use the available pixels for reading. */
@media (min-width: 2000px) {
  .app-shell {
    --refinement-body-size: 16px;
    --refinement-note-size: 14px;
    --refinement-control-size: 15px;
    --refinement-section-gap: 24px;
  }

  .app-shell[data-active-page]:not([data-active-page="home"]) :is(
    .monitor-heading h1,
    .algorithm-topbar h1,
    .quality-topbar h1
  ) {
    font-size: 30px;
  }

  .app-shell[data-active-page]:not([data-active-page="home"]) :is(
    .energy-panel-head h2,
    .opt-module-head h3,
    .section-title h2,
    .monitor-system-head h2
  ) {
    font-size: 20px;
  }

  .app-shell[data-active-page]:not([data-active-page="home"]) :is(.monitor-kpi-card, .quality-kpi) {
    min-height: 120px;
    padding: 20px;
  }

  .app-shell[data-active-page]:not([data-active-page="home"]) :is(.monitor-kpi-card, .quality-kpi) strong,
  .app-shell[data-active-page="home"] .cockpit-kpi strong {
    font-size: 36px;
  }

  .app-shell[data-active-page="home"] .cockpit-kpi > div > span {
    font-size: 16px;
  }

  .app-shell[data-active-page="home"] .cockpit-kpi small {
    font-size: 14px;
  }

  #appShell .dashboard-page:not(.home-page) :is(
    button,
    summary,
    input:not([type="checkbox"]):not([type="radio"]):not([type="range"]),
    select,
    textarea
  ) {
    min-height: 44px;
    font-size: 15px;
  }

  #appShell .dashboard-page:not(.home-page) button {
    min-width: 44px;
  }

  #appShell .monitor-equipment-page :is(
    .monitor-mcc-param,
    .monitor-equipment-kpi,
    .monitor-pump-parameter,
    .monitor-valve-parameter
  ) :is(dt, small, dd span) {
    font-size: 14px;
  }

  #appShell .monitor-equipment-page :is(
    .monitor-mcc-param,
    .monitor-equipment-kpi,
    .monitor-pump-parameter,
    .monitor-valve-parameter
  ) dd strong {
    font-size: 28px;
  }

  #appShell .nav-item {
    min-height: 52px;
    font-size: 16px;
  }
}

/* Tablet navigation exposes all eight device families without a scroll strip. */
@media (min-width: 721px) and (max-width: 1100px) {
  .app-shell[data-active-page="monitor"] .monitor-tabbar {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    overflow: visible;
    scroll-snap-type: none;
  }

  .app-shell[data-active-page="monitor"] .monitor-tab {
    width: 100%;
    min-width: 0;
    white-space: normal;
  }
}

/* Two readable metric columns on phones; one only on the narrowest screens. */
@media (max-width: 720px) {
  .app-shell {
    --refinement-section-gap: 16px;
  }

  .app-shell[data-active-page]:not([data-active-page="home"]) :is(
    .monitor-heading h1,
    .algorithm-topbar h1,
    .quality-topbar h1
  ) {
    font-size: 23px;
  }

  #appShell :is(#monitorPage, #energyAnalysisPage, #carbonAnalysisPage, #analysisPage, #algorithmPage, #qualityPage) :is(
    .monitor-kpi-ribbon,
    .energy-kpi-ribbon,
    .monitor-meter-kpis,
    .quality-kpi-grid
  ) {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  #appShell .dashboard-page:not(.home-page) :is(.monitor-kpi-card, .quality-kpi) {
    grid-template-columns: minmax(0, 1fr);
    align-content: start;
    gap: 8px;
    min-height: 132px;
    padding: 14px;
  }

  #appShell .dashboard-page:not(.home-page) :is(.monitor-kpi-icon, .quality-kpi-icon) {
    width: 28px;
    height: 28px;
  }

  #appShell .dashboard-page:not(.home-page) :is(.monitor-kpi-icon, .quality-kpi-icon) img {
    width: 28px;
    height: 28px;
  }

  #appShell .dashboard-page:not(.home-page) :is(.monitor-kpi-card, .quality-kpi) strong {
    font-size: 26px;
  }

  .app-shell[data-active-page="monitor"] .monitor-tabbar {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    padding: 6px;
    overflow: visible;
    scroll-snap-type: none;
  }

  .app-shell[data-active-page="monitor"] .monitor-tab {
    min-width: 0;
    padding: 8px;
    white-space: normal;
  }

  .app-shell[data-active-page]:not([data-active-page="home"]) .energy-quality-strip {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .app-shell[data-active-page]:not([data-active-page="home"]) .energy-quality-strip span + span {
    padding-left: 0;
    border-left: 0;
  }

  .app-shell[data-active-page]:not([data-active-page="home"]) .monitor-head {
    flex-wrap: wrap;
    gap: 12px;
  }
}

@media (max-width: 359px) {
  #appShell .dashboard-page:not(.home-page) :is(
    .monitor-kpi-ribbon,
    .energy-kpi-ribbon,
    .monitor-meter-kpis,
    .quality-kpi-grid
  ) {
    grid-template-columns: minmax(0, 1fr);
  }

  #appShell .dashboard-page:not(.home-page) :is(.monitor-kpi-card, .quality-kpi) {
    grid-template-columns: 28px minmax(0, 1fr);
    min-height: 100px;
  }
}

/* Touch targets apply to real controls, not device drawings or data labels. */
@media (pointer: coarse) {
  #appShell :is(
    .dashboard-page button,
    .dashboard-page summary,
    .dashboard-page select,
    .dashboard-page textarea,
    .dashboard-page input:not([type="checkbox"]):not([type="radio"]):not([type="range"]),
    .mobile-menu-toggle,
    .sidebar-toggle,
    .session-card button
  ) {
    min-height: 44px;
  }

  #appShell :is(.dashboard-page button, .mobile-menu-toggle, .sidebar-toggle, .session-card button) {
    min-width: 44px;
  }
}

/* 16px entry text prevents browser zoom on phones, without enlarging chart labels. */
@media (max-width: 720px), (pointer: coarse) {
  #appShell .dashboard-page :is(
    input:not([type="checkbox"]):not([type="radio"]):not([type="range"]),
    select,
    textarea
  ) {
    font-size: 16px;
    min-height: 44px;
  }
}