[data-fui-comp="ui-button"], .ui-button {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  /* Token-scaled touch target: --spacing-touch-target defaults to
     44px (WCAG 2.5.5 floor). Apps that want a larger tap zone for
     accessibility-mode skins can bump it via theme.Layout.
     TouchTarget without forking the component. */
  min-height: var(--spacing-touch-target);
  padding: 10px var(--spacing-lg);
  border: 1px solid transparent;
  border-radius: var(--radii-md);
  font: inherit;
  font-size: var(--text-base, 0.95rem);
  font-weight: 600;
  /* flex: 0 0 auto sizes the button to its unwrapped label (max-content), so
     wrapping action rows move whole controls to the next line first. The
     clamp below is container-driven, not viewport-driven: only a label wider
     than its own container (a sidebar rail, a card cell — at any viewport)
     wraps inside the bounded button. break-word, NOT anywhere: break-word
     adds emergency break points at render time without entering min-content
     sizing, so table/grid layout (a DataTable actions column under column
     pressure) keeps the intact label as the button's minimum and overflows
     horizontally instead of letter-stacking it. */
  max-inline-size: 100%;
  overflow-wrap: break-word;
  cursor: pointer;
  background: var(--color-primary);
  color: var(--color-primary-fg);
  text-decoration: none;
  transition: filter 150ms ease, opacity 150ms ease;
}
[data-fui-comp="ui-button"]:hover, .ui-button:hover { filter: brightness(0.95); }
/* Layered focus ring: inner halo in the surface color creates a
   visible gap between the button and the outer primary ring, so
   keyboard focus stays visible regardless of the button's own
   background color. */
[data-fui-comp="ui-button"]:focus-visible, .ui-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-surface), 0 0 0 4px var(--color-primary);
}
[data-fui-comp="ui-button"]:disabled, .ui-button:disabled,
[data-fui-comp="ui-button"][aria-disabled="true"], .ui-button[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.6;
  filter: none;
}

/* Variants — Primary is the default style above. */
.ui-button--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}
.ui-button--secondary:hover { filter: none; background: var(--color-surface-soft); }
/* secondary's bg IS --color-surface, so the layered-shadow inner halo
   would be invisible. Use a plain outline with offset instead — it
   contrasts against any page background. */
.ui-button--secondary:focus-visible {
  box-shadow: none;
  outline: 2px solid var(--color-text);
  outline-offset: 2px;
}

.ui-button--danger {
  /* Theme status token with a red-700 literal fallback: the default
     --color-danger IS #B91C1C (7.07:1 vs white), so axe's
     color-contrast scanner resolves the same unambiguous pair
     whether or not the theme :root block is present. Themes that
     override --color-danger own keeping ≥4.5:1 against
     --color-primary-fg. */
  background: var(--color-danger, #B91C1C);
  color: var(--color-primary-fg, #FFFFFF);
}
.ui-button--danger:focus-visible {
  box-shadow: 0 0 0 2px var(--color-surface), 0 0 0 4px var(--color-danger);
}

.ui-button--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: transparent;
}
.ui-button--ghost:hover { filter: none; background: var(--color-surface-soft); }
/* ghost sits on --color-background; a halo of --color-surface collapses
   to near-invisible. Plain outline + offset is reliable on any bg. */
.ui-button--ghost:focus-visible {
  box-shadow: none;
  outline: 2px solid var(--color-text);
  outline-offset: 2px;
}

/* Size modifiers — the default Button size already meets WCAG 2.5.5
   touch-target via min-height. --small explicitly opts out for compact
   row-action contexts (table rows, dense toolbars) where the parent
   row already provides the 44px tap area. --large bumps padding +
   font-size for hero CTAs. */
.ui-button--small {
  min-height: auto;
  padding: var(--spacing-sm, 4px) var(--spacing-md, 12px);
  font-size: var(--text-xs, 0.8rem);
}
.ui-button--large {
  padding: 14px var(--spacing-xl, 24px);
  /* --text-lg, NOT --text-base: :root always emits --text-base (1rem),
     so reading it here would collapse --large into the default size. */
  font-size: var(--text-lg, 1.05rem);
}

[data-fui-comp="ui-page-header"] {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-lg, 16px);
  padding: var(--spacing-xl, 24px) 0 var(--spacing-lg, 16px);
  border-bottom: 1px solid var(--color-border, #E4E4E7);
}
[data-fui-comp="ui-page-header"] .ui-page-header__text {
  display: grid;
  gap: var(--spacing-xs, 2px);
}
[data-fui-comp="ui-page-header"] .ui-page-header__eyebrow {
  margin: 0;
  font-size: var(--text-xs, 0.75rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-subtle, #71717A);
}
[data-fui-comp="ui-page-header"] .ui-page-header__title {
  margin: 0;
  font-size: var(--ui-page-header-title-size, var(--text-2xl, 1.5rem));
  font-weight: 700;
  line-height: var(--ui-page-header-title-leading, 1.25);
  letter-spacing: var(--ui-page-header-title-tracking, normal);
  color: var(--color-text, #18181B);
}
[data-fui-comp="ui-page-header"] .ui-page-header__subtitle {
  margin: 0;
  color: var(--color-text-muted, #52525B);
}
[data-fui-comp="ui-page-header"] .ui-page-header__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm, 4px);
}

[data-fui-comp="ui-sidebar"].ui-sidebar {
  display: contents;
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__hamburger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--spacing-touch-target, 44px);
  height: var(--spacing-touch-target, 44px);
  border: 1px solid var(--color-border, #E4E4E7);
  border-radius: var(--radii-md, 8px);
  background: var(--color-surface, #FFF);
  color: var(--color-text, #18181B);
  cursor: pointer;
  font-size: var(--text-xl, 1.25rem);
  line-height: 1;
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__collapse {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  justify-self: end;
  width: var(--spacing-touch-target, 44px);
  height: var(--spacing-touch-target, 44px);
  border: 1px solid var(--color-border, #E4E4E7);
  border-radius: var(--radii-sm, 4px);
  background: var(--color-surface, #FFF);
  color: var(--color-text, #18181B);
  cursor: pointer;
  font-size: var(--text-xl, 1.25rem);
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__collapse:focus-visible {
  outline: 2px solid var(--color-primary, #4F46E5);
  outline-offset: 2px;
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__icon--fallback {
  display: none;
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__inline {
  display: grid;
  gap: var(--spacing-md, 8px);
  padding: var(--spacing-lg, 16px);
  min-width: 220px;
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__title {
  font-size: var(--text-sm, 0.875rem);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted, #52525B);
  margin: 0;
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__list,
[data-fui-comp="ui-sidebar"] .ui-sidebar__sublist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--spacing-xs, 2px);
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__sublist {
  margin-inline-start: var(--spacing-lg, 16px);
}
/* Button-dialect group containers carry the hidden attribute when
   closed. The grid display above would override the UA's
   [hidden] { display: none } (same specificity class, later author
   rule), so the attribute must win explicitly or a closed group's
   links stay visible. */
/* Button-dialect group headers: strip the UA button chrome so the
   toggle renders like the <summary> it replaces (the shared
   .ui-sidebar__link rule supplies layout, color, hover, focus). */
[data-fui-comp="ui-sidebar"] .ui-sidebar__group-toggle {
  width: 100%;
  border: none;
  background: none;
  font: inherit;
  cursor: pointer;
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__sublist[hidden] {
  display: none;
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 8px);
  padding: var(--spacing-sm, 8px) var(--spacing-md, 12px);
  border-radius: var(--radii-sm, 4px);
  color: var(--color-text, #18181B);
  text-decoration: none;
  min-height: var(--spacing-touch-target, 44px);
  cursor: pointer;
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__link:hover,
[data-fui-comp="ui-sidebar"] .ui-sidebar__link:focus-visible {
  background: var(--color-surface-soft, #F4F4F5);
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__link:focus-visible {
  /* Visible focus ring on BOTH the default and the active
     (primary-background) link. The previous background-only signal was
     invisible on the active link: the [aria-current="page"] rule below
     (equal specificity, later source) overrode the focus background, and
     outline:none removed the ring — so a keyboard user could not see
     focus land on the current page's nav item. */
  outline: 2px solid var(--color-primary, #4F46E5);
  outline-offset: 2px;
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__link[aria-current="page"] {
  /* Use the primary + primary-fg token pair so contrast is guaranteed
     AA regardless of theme. The previous 12%-primary tinted bg + raw
     primary text failed contrast for some primary hues. */
  background: var(--color-primary, #4F46E5);
  color: var(--color-primary-fg, #FFFFFF);
  font-weight: 600;
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__group > summary {
  list-style: none;
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__group > summary::-webkit-details-marker {
  display: none;
}
[data-fui-comp="ui-sidebar"] .ui-sidebar__footer {
  margin-top: auto;
  padding-top: var(--spacing-md, 12px);
  border-top: 1px solid var(--color-border, #E4E4E7);
}
[data-fui-comp="ui-sidebar"].ui-sidebar--collapsible[data-collapsed="true"] .ui-sidebar__inline {
  min-width: 64px;
  width: 64px;
  padding-inline: var(--spacing-sm, 8px);
}
[data-fui-comp="ui-sidebar"].ui-sidebar--collapsible[data-collapsed="true"] .ui-sidebar__collapse {
  justify-self: center;
  transform: rotate(180deg);
}
[data-fui-comp="ui-sidebar"].ui-sidebar--collapsible[data-collapsed="true"] .ui-sidebar__title,
[data-fui-comp="ui-sidebar"].ui-sidebar--collapsible[data-collapsed="true"] .ui-sidebar__footer,
[data-fui-comp="ui-sidebar"].ui-sidebar--collapsible[data-collapsed="true"] .ui-sidebar__sublist {
  display: none;
}
/* Labels go visually-hidden (clip), NOT display:none — the links and
   disclosure summaries stay focusable in the collapsed rail, so their
   only accessible name must survive for AT (WCAG 4.1.2). */
[data-fui-comp="ui-sidebar"].ui-sidebar--collapsible[data-collapsed="true"] .ui-sidebar__label {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
[data-fui-comp="ui-sidebar"].ui-sidebar--collapsible[data-collapsed="true"] .ui-sidebar__link {
  justify-content: center;
  padding-inline: var(--spacing-sm, 8px);
}
[data-fui-comp="ui-sidebar"].ui-sidebar--collapsible[data-collapsed="true"] .ui-sidebar__icon--fallback {
  display: inline-flex;
}
[data-fui-comp="ui-sidebar"].ui-sidebar--off-canvas .ui-sidebar__inline {
  display: none;
}
/* Viewport behaviour: < md collapses to the hamburger; ≥ md the
   inline column appears and the hamburger hides. OffCanvas keeps the
   hamburger on every viewport.                                       */
@media (max-width: 47.99rem) {
  [data-fui-comp="ui-sidebar"] .ui-sidebar__inline { display: none; }
}
/* Auto-hide variant: icon rail at rest, full column on :hover OR
   :focus-within. The focus-within half is load-bearing, not a
   nicety: hover-only would hide every link from keyboard users
   tabbing through the page. Rest-state widths, spacing, and the
   visually-hidden label clip mirror the collapsible collapsed rail;
   the reveal restores the persistent column's sizing. The framework
   ships this styling (one styling surface — hosts write no CSS). */
[data-fui-comp="ui-sidebar"].ui-sidebar--auto-hide .ui-sidebar__inline {
  min-width: 64px;
  width: 64px;
  padding-inline: var(--spacing-sm, 8px);
  transition: width var(--duration-fast, 150ms) var(--easing-ease-out, cubic-bezier(0.16, 1, 0.3, 1)),
    min-width var(--duration-fast, 150ms) var(--easing-ease-out, cubic-bezier(0.16, 1, 0.3, 1)),
    padding-inline var(--duration-fast, 150ms) var(--easing-ease-out, cubic-bezier(0.16, 1, 0.3, 1));
}
[data-fui-comp="ui-sidebar"].ui-sidebar--auto-hide:hover .ui-sidebar__inline,
[data-fui-comp="ui-sidebar"].ui-sidebar--auto-hide:focus-within .ui-sidebar__inline,
  min-width: 220px;
  width: 220px;
  padding-inline: var(--spacing-lg, 16px);
}
/* Rest-state chrome rules apply only while NOT revealed: on hover
   or focus-within they stop matching and the base (expanded) styles
   take over, so the reveal needs no mirrored overrides. */
[data-fui-comp="ui-sidebar"].ui-sidebar--auto-hide:not(:hover):not(:focus-within) .ui-sidebar__title,
[data-fui-comp="ui-sidebar"].ui-sidebar--auto-hide:not(:hover):not(:focus-within) .ui-sidebar__footer,
[data-fui-comp="ui-sidebar"].ui-sidebar--auto-hide:not(:hover):not(:focus-within) .ui-sidebar__sublist {
  display: none;
}
[data-fui-comp="ui-sidebar"].ui-sidebar--auto-hide:not(:hover):not(:focus-within) .ui-sidebar__label {
  /* Same visually-hidden clip as the collapsed rail: the links stay
     focusable, so their accessible name must survive (WCAG 4.1.2). */
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
[data-fui-comp="ui-sidebar"].ui-sidebar--auto-hide:not(:hover):not(:focus-within) .ui-sidebar__link {
  justify-content: center;
  padding-inline: var(--spacing-sm, 8px);
}
[data-fui-comp="ui-sidebar"].ui-sidebar--auto-hide:not(:hover):not(:focus-within) .ui-sidebar__icon--fallback {
  display: inline-flex;
}
@media (prefers-reduced-motion: reduce) {
  [data-fui-comp="ui-sidebar"].ui-sidebar--auto-hide .ui-sidebar__inline { transition: none; }
}
@media (min-width: 48rem) {
  [data-fui-comp="ui-sidebar"].ui-sidebar--persistent .ui-sidebar__hamburger,
  [data-fui-comp="ui-sidebar"].ui-sidebar--collapsible .ui-sidebar__hamburger,
  [data-fui-comp="ui-sidebar"].ui-sidebar--auto-hide .ui-sidebar__hamburger {
    display: none;
  }
}