/*
  Demo paint is intentionally local: the published layout modules continue to
  own structure only, while the lab remains legible in layout-only mode.
*/

:root {
  --demo-bg: #f1f5f9;
  --demo-panel: #ffffff;
  --demo-panel-strong: #e2e8f0;
  --demo-text: #172033;
  --demo-muted: #526079;
  --demo-line: #b8c3d3;
  --demo-accent: #4f46e5;
  --demo-accent-soft: #e0e7ff;
  --demo-danger: #b42318;
  --demo-radius: 1rem;
  --demo-shadow: 0 1rem 3rem rgb(15 23 42 / 0.12);
  --demo-density-gap: 1rem;
  --demo-region-padding: 1rem;
  color-scheme: light;
}

body[data-mode="dark"] {
  --demo-bg: #101827;
  --demo-panel: #172033;
  --demo-panel-strong: #273449;
  --demo-text: #f8fafc;
  --demo-muted: #cbd5e1;
  --demo-line: #46556d;
  --demo-accent: #a5b4fc;
  --demo-accent-soft: #312e81;
  --demo-shadow: 0 1rem 3rem rgb(0 0 0 / 0.38);
  color-scheme: dark;
}

body[data-mode="contrast"] {
  --demo-bg: #000000;
  --demo-panel: #000000;
  --demo-panel-strong: #1a1a1a;
  --demo-text: #ffffff;
  --demo-muted: #ffffff;
  --demo-line: #ffffff;
  --demo-accent: #ffeb3b;
  --demo-accent-soft: #322f00;
  color-scheme: dark;
}

body[data-density="compact"] {
  --demo-density-gap: 0.5rem;
  --demo-region-padding: 0.75rem;
}

body[data-density="spacious"] {
  --demo-density-gap: 1.5rem;
  --demo-region-padding: 1.5rem;
}

html {
  min-inline-size: 20rem;
  scroll-behavior: smooth;
}

body {
  min-block-size: 100vh;
  min-block-size: 100svh;
  min-block-size: 100dvh;
  margin: 0;
  overflow-x: clip;
  background: var(--demo-bg);
  color: var(--demo-text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

body * {
  box-sizing: border-box;
}

button,
select {
  min-block-size: 2.75rem;
  max-inline-size: 100%;
  font: inherit;
}

button {
  cursor: pointer;
}

button:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 0.1875rem solid var(--demo-accent);
  outline-offset: 0.1875rem;
}

select {
  inline-size: 100%;
}

h1,
h2,
h3,
p,
pre {
  margin-block: 0;
}

h1,
h2,
h3,
p,
code,
strong,
span,
label {
  overflow-wrap: anywhere;
}

h1 {
  max-inline-size: 18ch;
  font-size: clamp(2rem, 4vw, 4.5rem);
  line-height: 0.98;
}

h2 {
  font-size: clamp(1.25rem, 2.5vw, 2rem);
  line-height: 1.1;
}

h3 {
  font-size: 1rem;
}

.demo-skip-link {
  position: fixed;
  inset-block-start: 0.5rem;
  inset-inline-start: 0.5rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  translate: 0 -150%;
  background: var(--demo-panel);
  color: var(--demo-text);
}

.demo-skip-link:focus {
  translate: 0;
}

.demo-topbar {
  position: sticky;
  inset-block-start: 0;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-block-size: 4.5rem;
  padding:
    max(0.75rem, env(safe-area-inset-top, 0px))
    max(1rem, env(safe-area-inset-right, 0px))
    0.75rem
    max(1rem, env(safe-area-inset-left, 0px));
  border-block-end: 1px solid var(--demo-line);
  background: color-mix(in srgb, var(--demo-panel) 92%, transparent);
  backdrop-filter: blur(1rem);
}

.demo-brand,
.demo-controls-heading,
.demo-section-heading,
.demo-code-card-heading,
.demo-topbar-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.demo-brand {
  align-items: flex-start;
  flex-direction: column;
  gap: 0.125rem;
}

.demo-kicker {
  color: var(--demo-muted);
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.demo-status,
.demo-copy-status,
.demo-readouts {
  color: var(--demo-muted);
  font-size: 0.875rem;
}

.demo-readouts {
  display: grid;
  justify-items: end;
  gap: 0.125rem;
}

.demo-status {
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--demo-line);
  border-radius: 999px;
  background: var(--demo-accent-soft);
}

body[data-ecosystem="layout-only"] .demo-status {
  border-style: dashed;
  background: var(--demo-panel-strong);
}

body[data-ecosystem="all-three"] .demo-status {
  box-shadow: inset 0 0 0 0.125rem color-mix(in srgb, var(--demo-accent) 30%, transparent);
}

.demo-page {
  display: grid;
  inline-size: min(calc(100% - 2rem), 112rem);
  margin-inline: auto;
  padding-block: clamp(1rem, 3vw, 2rem) 4rem;
}

.demo-controls,
.demo-intro,
.demo-lab,
.demo-code-card {
  border: 1px solid var(--demo-line);
  border-radius: var(--demo-radius);
  background: var(--demo-panel);
  box-shadow: var(--demo-shadow);
}

.demo-controls {
  min-inline-size: 0;
  padding: 1rem;
}

.demo-controls-heading {
  margin-block-end: 1rem;
}

.demo-controls-grid {
  display: grid;
  gap: 0.875rem;
}

.demo-controls-grid label {
  display: grid;
  gap: 0.35rem;
  min-inline-size: 0;
  color: var(--demo-muted);
  font-size: 0.8125rem;
  font-weight: 700;
}

.demo-controls-grid select {
  padding-inline: 0.625rem;
}

.demo-main {
  display: grid;
  min-inline-size: 0;
  gap: clamp(1rem, 3vw, 2rem);
}

.demo-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  padding: clamp(1.25rem, 4vw, 3rem);
}

.demo-intro > div:first-child {
  display: grid;
  gap: 1rem;
}

.demo-intro p {
  max-inline-size: 68ch;
  color: var(--demo-muted);
}

.demo-state-panel {
  display: grid;
  align-content: center;
  gap: 0.75rem;
  min-inline-size: 0;
  padding: 1rem;
  border: 1px solid var(--demo-line);
  border-radius: calc(var(--demo-radius) * 0.75);
  background: var(--demo-panel-strong);
}

.demo-lab {
  min-inline-size: 0;
  padding: clamp(1rem, 2vw, 1.5rem);
}

.demo-section-heading {
  flex-wrap: wrap;
  margin-block-end: 1rem;
}

.demo-preview-frame {
  --demo-container-inline-size: 100%;
  --demo-container-block-size: auto;

  container-name: demo-preview;
  container-type: inline-size;
  inline-size: min(100%, var(--demo-container-inline-size));
  block-size: var(--demo-container-block-size);
  max-block-size: none;
  min-inline-size: 0;
  min-block-size: 0;
  margin-inline: auto;
  overflow: auto;
  border: 1px dashed var(--demo-line);
  border-radius: calc(var(--demo-radius) * 0.85);
  background: var(--demo-bg);
}

/* The nested root lets personalities respond to preview width, not viewport width. */
.demo-preview-root {
  --ly-cover-min: 100%;
  --ly-shell-min: 100%;

  block-size: 100%;
  min-block-size: 0;
  min-inline-size: 0;
  padding-block: 0.75rem;
}

.demo-preview-root > .ly-wrapper {
  /*
    Preview allocations represent the nearest queried content box exactly;
    safe-area behavior remains exercised by the outer document root.
  */
  --ly-wrapper-fluid-gutter: 0px;
  --ly-wrapper-local-gutter: 0px;

  block-size: 100%;
  min-inline-size: 0;
}

.demo-recipe {
  min-block-size: 100%;
  min-inline-size: 0;
  gap: var(--demo-density-gap);
}

.demo-recipe:is([data-ly-recipe="gallery"], [data-ly-recipe="card-grid"]) {
  min-block-size: auto;
}

.demo-preview-root[data-demo-height-tier="short"] {
  --ly-gap: min(var(--demo-density-gap), 1rem);
  --ly-grid-gap: var(--ly-gap);
  --ly-section-padding-block: clamp(1.5rem, 6%, 3rem);
  --ly-header-height: 3.5rem;
  --ly-scroll-max: min(62%, 34rem);
}

.demo-preview-root[data-demo-height-tier="shallow"] {
  --ly-cover-min: auto;
  --ly-shell-min: auto;
  --ly-sticky-position: static;
  --ly-section-padding-block: 1.5rem;
  --ly-scroll-max: max(12rem, calc(100% - 8rem));
}

.demo-preview-root[data-demo-height-tier="shallow"] .demo-recipe {
  min-block-size: auto;
}

.demo-region {
  display: grid;
  align-content: start;
  min-block-size: 5rem;
  min-inline-size: 0;
  gap: 0.75rem;
  padding: var(--demo-region-padding);
  overflow: hidden;
  border: 1px solid var(--demo-line);
  border-radius: calc(var(--demo-radius) * 0.65);
  background: var(--demo-panel);
}

.demo-region[data-ly-area="main"],
.demo-region[data-ly-area="secondary"],
.demo-region[data-ly-area="content"] {
  background: var(--demo-accent-soft);
}

.demo-region > button {
  justify-self: start;
}

.demo-grid-item {
  min-block-size: 8rem;
}

.demo-list-scroll {
  --ly-scroll-max: 10rem;

  display: grid;
  gap: 0.5rem;
  padding-inline-end: 0.25rem;
}

.demo-list-scroll p {
  padding: 0.5rem;
  background: var(--demo-panel-strong);
}

.demo-code-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  min-inline-size: 0;
}

.demo-code-heading {
  grid-column: 1 / -1;
  margin-block-end: 0;
}

.demo-code-card {
  display: grid;
  align-content: start;
  min-inline-size: 0;
  gap: 1rem;
  padding: 1rem;
}

.demo-code-card-heading {
  flex-wrap: wrap;
}

.demo-code-card pre {
  max-block-size: 22rem;
  min-inline-size: 0;
  margin: 0;
  padding: 1rem;
  overflow: auto;
  border-radius: calc(var(--demo-radius) * 0.65);
  background: #0f172a;
  color: #e2e8f0;
  font-size: 0.8rem;
  tab-size: 2;
  white-space: pre;
}

/* Copy-ready snippets inherit the dedicated code surface instead of inline-code paint. */
.demo-code-card pre code {
  color: inherit;
}

.demo-copy-status[data-copy-state="error"] {
  color: var(--demo-danger);
}

.demo-backdrop[hidden],
.demo-controls[hidden] {
  display: none;
}

@media (min-width: 48rem) {
  .demo-intro {
    grid-template-columns: minmax(0, 1.5fr) minmax(14rem, 0.5fr);
    align-items: end;
  }

  .demo-code-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 64rem) {
  #demoControlsToggle,
  #demoControlsClose {
    display: none;
  }

  .demo-page {
    grid-template-columns: minmax(13rem, 14rem) minmax(0, 1fr);
    align-items: start;
    gap: 1.5rem;
  }

  .demo-controls {
    position: sticky;
    inset-block-start: 6rem;
    display: block;
    max-block-size: calc(100vh - 7rem);
    max-block-size: calc(100svh - 7rem);
    max-block-size: calc(100dvh - 7rem);
    overflow: auto;
  }
}

@media (max-width: 63.999rem) {
  .demo-page {
    inline-size: min(calc(100% - 1rem), 72rem);
  }

  .demo-status {
    display: none;
  }

  .demo-controls {
    position: fixed;
    inset-block: 0;
    inset-inline-end: 0;
    z-index: 40;
    inline-size: min(24rem, calc(100% - 1rem));
    max-block-size: 100vh;
    max-block-size: 100svh;
    max-block-size: 100dvh;
    padding:
      max(1rem, env(safe-area-inset-top, 0px))
      max(1rem, env(safe-area-inset-right, 0px))
      max(1rem, env(safe-area-inset-bottom, 0px))
      1rem;
    overflow: auto;
    border-radius: var(--demo-radius) 0 0 var(--demo-radius);
  }

  .demo-backdrop {
    position: fixed;
    inset: 0;
    z-index: 30;
    background: rgb(15 23 42 / 0.72);
  }
}

@media (max-width: 34rem) {
  .demo-topbar-actions,
  #demoControlsToggle {
    inline-size: 100%;
  }

  .demo-intro,
  .demo-lab {
    border-radius: calc(var(--demo-radius) * 0.75);
  }

  .demo-section-heading,
  .demo-code-card-heading {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-height: 44rem) {
  .demo-page {
    padding-block: 0.75rem 2rem;
  }

  .demo-main {
    gap: 1rem;
  }

  .demo-intro,
  .demo-lab {
    padding-block: 1rem;
  }
}

@media (max-height: 30rem) {
  .demo-topbar,
  .demo-controls {
    position: static;
    max-block-size: none;
  }

  .demo-preview-frame {
    max-block-size: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}