/*
 * Critical responsive layout for standalone demos.
 * This file is linked from the HTML response so mobile geometry is established
 * before deferred demo scripts execute, preventing a desktop-to-mobile reflow.
 */
@media (max-width: 980px) {
  html,
  body {
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    height: auto !important;
    min-height: 100%;
    min-height: 100svh;
    overflow-x: clip !important;
    overflow-y: auto !important;
  }

  body > .app,
  body > .page,
  body > #page-root {
    width: 100%;
    max-width: 100%;
    height: auto !important;
    min-height: 100svh;
    overflow: visible !important;
  }

  body > main,
  body > .main-stage,
  body > .workspace,
  body > .main-layout,
  body > #page-root {
    box-sizing: border-box;
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    min-height: 0 !important;
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) !important;
    grid-auto-flow: row !important;
    align-items: stretch !important;
    gap: 12px !important;
    padding: 12px !important;
    overflow: visible !important;
  }

  body > main > *,
  body > .main-stage > *,
  body > .workspace > *,
  body > .main-layout > *,
  body > #page-root > * {
    box-sizing: border-box;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    height: auto;
    max-height: none;
    transform: none;
  }

  body header {
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    height: auto !important;
    min-height: 64px;
    padding: 12px 16px !important;
    gap: 10px 16px;
    flex-wrap: wrap;
  }

  body header h1,
  body .title-wrap h1 {
    max-width: 100%;
    font-size: clamp(20px, 5.8vw, 28px) !important;
    line-height: 1.2 !important;
    white-space: normal !important;
    overflow-wrap: anywhere;
  }

  body > main > .center,
  body > main > [class*="center"],
  body > main > [id*="center"],
  body > main > .display-container,
  body > main > [class*="stage"],
  body > main > [id*="stage"] {
    height: clamp(480px, 76svh, 720px) !important;
    min-height: 480px !important;
    overflow: hidden !important;
  }

  body footer {
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    height: auto !important;
    min-height: 68px;
    position: relative !important;
    inset: auto !important;
    display: flex;
    flex-wrap: wrap;
    gap: 10px !important;
    padding: 12px 12px calc(12px + env(safe-area-inset-bottom)) !important;
  }

  body .overlay,
  body .modal-overlay {
    box-sizing: border-box;
    max-width: 100vw;
    padding: 12px !important;
    overflow: auto;
    overscroll-behavior: contain;
  }

  body .modal,
  body .modal-content {
    width: min(100%, 720px) !important;
    max-width: 100% !important;
    max-height: calc(100dvh - 24px) !important;
    overflow: auto !important;
  }
}

@media (max-width: 768px) {
  body > main,
  body > .main-stage,
  body > .workspace,
  body > .main-layout,
  body > #page-root {
    padding: 8px !important;
    gap: 8px !important;
  }

  body > main > .center,
  body > main > [class*="center"],
  body > main > [id*="center"],
  body > main > .display-container,
  body > main > [class*="stage"],
  body > main > [id*="stage"] {
    height: clamp(420px, 72svh, 620px) !important;
    min-height: 420px !important;
  }

  body input[type="range"] {
    box-sizing: border-box !important;
    min-width: 44px;
    min-height: 40px !important;
    height: 40px !important;
    padding-block: 16px !important;
    background-clip: content-box !important;
    touch-action: pan-y;
  }

  body input[type="checkbox"],
  body input[type="radio"] {
    width: 22px !important;
    height: 22px !important;
    min-width: 22px;
    min-height: 22px;
  }

  body button,
  body select,
  body [role="button"] {
    min-height: 40px;
    touch-action: manipulation;
  }
}

@media (max-height: 430px) and (orientation: landscape) {
  body > main > .center,
  body > main > [class*="center"],
  body > main > [id*="center"],
  body > main > .display-container,
  body > main > [class*="stage"],
  body > main > [id*="stage"] {
    height: 78svh !important;
    min-height: 280px !important;
  }
}

/*
 * Teaching-order responsive reflow. Semantic regions are added by
 * demo-shell.js; desktop layouts are deliberately left to each demo.
 */
@media (max-width: 1024px) {
  body.demo-shell-page .demo-shell-layout[data-demo-layout] {
    box-sizing: border-box;
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    min-height: 0 !important;
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) !important;
    grid-template-rows: none !important;
    grid-auto-flow: row !important;
    align-items: stretch !important;
    overflow: visible !important;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout] > * {
    box-sizing: border-box;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    max-height: none;
    transform: none;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout] > [data-demo-region="mode"] {
    order: 10;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout] > [data-demo-region="stage"] {
    order: 20;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout] > [data-demo-region="hud"] {
    order: 30;
    display: flex !important;
    flex-direction: column;
    overflow: visible !important;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout] > [data-demo-region="controls"] {
    order: 40;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout] > [data-demo-region="support"] {
    order: 50;
  }

  body.demo-shell-page .demo-shell-mode-tray {
    box-sizing: border-box;
    width: 100%;
    min-width: 0;
    padding: 12px;
    border: 1px solid rgba(0, 229, 255, 0.24);
    border-radius: 16px;
    background: rgba(8, 18, 34, 0.82);
  }

  body.demo-shell-page .demo-shell-mode-tray[hidden] {
    display: none !important;
  }

  body.demo-shell-page .demo-shell-mode-tray > :first-child {
    margin-top: 0 !important;
  }

  body.demo-shell-page [data-demo-region="hud"] .data-grid,
  body.demo-shell-page [data-demo-region="hud"] .hud-grid,
  body.demo-shell-page [data-demo-region="hud"] .stats-grid,
  body.demo-shell-page [data-demo-region="hud"] .metrics-grid {
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr)) !important;
  }

  body.demo-shell-page .demo-return-control {
    right: calc(12px + env(safe-area-inset-right));
    bottom: calc(12px + env(safe-area-inset-bottom));
  }

  body.demo-shell-page .demo-return-control--stacked {
    bottom: calc(64px + env(safe-area-inset-bottom));
  }
}

@media (max-width: 600px) {
  body.demo-shell-page header {
    padding-right: calc(72px + env(safe-area-inset-right)) !important;
    padding-left: calc(16px + env(safe-area-inset-left)) !important;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout] {
    padding-right: calc(12px + env(safe-area-inset-right)) !important;
    padding-left: calc(12px + env(safe-area-inset-left)) !important;
    gap: 16px !important;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout] > [data-demo-region="stage"] {
    height: clamp(360px, 62svh, 560px) !important;
    min-height: 360px !important;
  }

  body.demo-shell-page .demo-shell-mode-tray {
    padding: 10px;
  }

  body.demo-shell-page input[type="range"] {
    min-height: 40px !important;
    height: 40px !important;
    padding-block: 16px !important;
    touch-action: pan-y;
  }

  body.demo-shell-page button,
  body.demo-shell-page select,
  body.demo-shell-page [role="button"] {
    min-height: 40px;
    touch-action: manipulation;
  }

  body.demo-shell-page footer button,
  body.demo-shell-page footer .btn,
  body.demo-shell-page footer .main-btn,
  body.demo-shell-page footer .bottom-btn {
    min-height: 44px;
  }

  body.demo-shell-page .demo-return-control,
  body.demo-shell-page .demo-return-control--stacked {
    top: calc(10px + env(safe-area-inset-top));
    right: calc(12px + env(safe-area-inset-right));
    bottom: auto;
    width: 44px;
    min-width: 44px;
    height: 44px;
    min-height: 44px;
    padding: 0;
    justify-content: center;
  }

  body.demo-shell-page .demo-return-control > span:last-child {
    display: none;
  }
}

@media (min-width: 601px) and (max-width: 1024px) and (orientation: portrait) {
  body.demo-shell-page header {
    padding-right: calc(84px + env(safe-area-inset-right)) !important;
  }

  body.demo-shell-page .demo-return-control,
  body.demo-shell-page .demo-return-control--stacked {
    top: calc(10px + env(safe-area-inset-top));
    right: calc(16px + env(safe-area-inset-right));
    bottom: auto;
    width: 44px;
    min-width: 44px;
    height: 44px;
    min-height: 44px;
    padding: 0;
    justify-content: center;
  }

  body.demo-shell-page .demo-return-control > span:last-child {
    display: none;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout] {
    width: min(100%, 1180px) !important;
    margin-inline: auto;
    padding: 20px !important;
    gap: 20px !important;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout] > [data-demo-region="stage"] {
    height: clamp(560px, 66svh, 820px) !important;
    min-height: 560px !important;
  }

  body.demo-shell-page [data-demo-region="hud"] .chart-box {
    flex: none !important;
    min-height: 0 !important;
  }

  body.demo-shell-page input[type="range"] {
    box-sizing: border-box !important;
    min-height: 40px !important;
    height: 40px !important;
    padding-block: 16px !important;
    background-clip: content-box !important;
    touch-action: pan-y;
  }

  body.demo-shell-page [data-demo-region="hud"] .data-grid,
  body.demo-shell-page [data-demo-region="hud"] .hud-grid,
  body.demo-shell-page [data-demo-region="hud"] .stats-grid,
  body.demo-shell-page [data-demo-region="hud"] .metrics-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)) !important;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout="classified"] > [data-demo-region="controls"] {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    align-content: start;
    gap: 12px !important;
  }

  body.demo-shell-page [data-demo-region="controls"] > .panel-title,
  body.demo-shell-page [data-demo-region="controls"] > .formula-card,
  body.demo-shell-page [data-demo-region="controls"] > .formula-box,
  body.demo-shell-page [data-demo-region="controls"] > .equation-box,
  body.demo-shell-page [data-demo-region="controls"] > .section,
  body.demo-shell-page [data-demo-region="controls"] > .panel-scroll,
  body.demo-shell-page [data-demo-region="controls"] > :not(.control-group):not(.control-row):not(.control-item) {
    grid-column: 1 / -1;
  }

  body.demo-shell-page [data-demo-region="controls"] > .control-group,
  body.demo-shell-page [data-demo-region="controls"] > .control-row,
  body.demo-shell-page [data-demo-region="controls"] > .control-item {
    width: 100% !important;
    min-width: 0 !important;
    margin: 0 !important;
  }
}

@media (min-width: 601px) and (max-width: 1366px) and (hover: none),
       (min-width: 601px) and (max-width: 1366px) and (pointer: coarse) {
  body.demo-shell-page .demo-return-control,
  body.demo-shell-page .demo-return-control--stacked {
    top: calc(10px + env(safe-area-inset-top));
    right: calc(16px + env(safe-area-inset-right));
    bottom: auto;
    width: 44px;
    min-width: 44px;
    height: 44px;
    min-height: 44px;
    padding: 0;
    justify-content: center;
  }

  body.demo-shell-page .demo-return-control > span:last-child {
    display: none;
  }
}

@media (min-width: 768px) and (max-width: 1366px) and (orientation: landscape) and (hover: none),
       (min-width: 768px) and (max-width: 1366px) and (orientation: landscape) and (pointer: coarse) {
  html.demo-shell-enhanced,
  html.demo-shell-enhanced body.demo-shell-page {
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    height: auto !important;
    min-height: 100svh;
    overflow-x: clip !important;
    overflow-y: auto !important;
  }

  body.demo-shell-page .app,
  body.demo-shell-page .page,
  body.demo-shell-page #page-root {
    width: 100%;
    max-width: 100%;
    height: auto !important;
    min-height: 100svh;
    overflow: visible !important;
  }

  body.demo-shell-page header {
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    height: auto !important;
    min-height: 64px;
    padding: 12px calc(84px + env(safe-area-inset-right)) 12px calc(20px + env(safe-area-inset-left)) !important;
    gap: 12px 20px;
    flex-wrap: wrap;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout="classified"] {
    box-sizing: border-box;
    width: min(100%, 1366px) !important;
    max-width: 100% !important;
    height: auto !important;
    min-height: 0 !important;
    margin-inline: auto;
    padding: 16px calc(16px + env(safe-area-inset-right)) 16px calc(16px + env(safe-area-inset-left)) !important;
    display: grid !important;
    grid-template-columns: minmax(0, 1.78fr) minmax(300px, 1fr) !important;
    grid-template-areas:
      "stage controls"
      "hud controls"
      "support controls";
    grid-auto-flow: row !important;
    align-items: start !important;
    gap: 16px !important;
    overflow: visible !important;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout="classified"] > * {
    box-sizing: border-box;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    height: auto;
    max-height: none;
    transform: none;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout="classified"] > [data-demo-region="stage"] {
    grid-area: stage !important;
    height: clamp(500px, calc(100svh - 176px), 760px) !important;
    min-height: 500px !important;
    overflow: hidden !important;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout="classified"] > [data-demo-region="controls"] {
    grid-area: controls !important;
    max-height: calc(100dvh - 118px) !important;
    overflow-x: hidden !important;
    overflow-y: auto !important;
    overscroll-behavior: contain;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout="classified"] > [data-demo-region="hud"] {
    grid-area: hud !important;
  }

  body.demo-shell-page .demo-shell-layout[data-demo-layout="classified"] > [data-demo-region="support"] {
    grid-area: support !important;
  }

  body.demo-shell-page .demo-shell-mode-tray {
    display: none !important;
  }

  body.demo-shell-page input[type="range"] {
    min-height: 40px !important;
    height: 40px !important;
    padding-block: 16px !important;
    touch-action: pan-y;
  }

  body.demo-shell-page button,
  body.demo-shell-page select,
  body.demo-shell-page [role="button"] {
    min-height: 40px;
    touch-action: manipulation;
  }

  body.demo-shell-page footer {
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    height: auto !important;
    min-height: 68px;
    position: relative !important;
    inset: auto !important;
    display: flex;
    flex-wrap: wrap;
    gap: 10px !important;
    padding: 12px 12px calc(12px + env(safe-area-inset-bottom)) !important;
  }

  body.demo-shell-page .demo-return-control {
    right: calc(16px + env(safe-area-inset-right));
    bottom: calc(16px + env(safe-area-inset-bottom));
  }

  body.demo-shell-page .demo-return-control--stacked {
    bottom: calc(76px + env(safe-area-inset-bottom));
  }
}