/* ==========================================================================
   den-kit: base.css
   Opt-in baseline styles strictly scoped under .den-root
   (Never touches bare html/body elements to guarantee legacy safety)
   ========================================================================== */

.den-root {
  background-color: var(--den-bg-canvas, #0A0A14);
  color: var(--den-text-primary, #FFFFFF);
  font-family: var(--den-font-family-ui, 'Den UI', -apple-system, system-ui, 'Segoe UI', Roboto, sans-serif);
  font-size: var(--den-font-body, clamp(0.875rem, 0.6vw + 0.3rem, 1rem));
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  box-sizing: border-box;
}

.den-root *,
.den-root *::before,
.den-root *::after {
  box-sizing: inherit;
}

/* ==========================================================================
   Selection & Focus Ring
   ========================================================================== */

.den-root ::selection {
  background-color: var(--den-brand-purple, #9B59B6);
  color: var(--den-text-primary, #FFFFFF);
}

.den-root :focus-visible {
  outline: 2px solid var(--den-cyan-core, #00E5FF);
  outline-offset: 2px;
  box-shadow: 0 0 8px var(--den-cyan-glow-rgba, rgba(0, 229, 255, 0.45));
}

/* ==========================================================================
   Dark Arcade Scrollbar
   ========================================================================== */

.den-root {
  scrollbar-color: var(--den-panel-border, #2E2A4A) var(--den-bg-canvas, #0A0A14);
  scrollbar-width: thin;
}

.den-root::-webkit-scrollbar,
.den-root *::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.den-root::-webkit-scrollbar-track,
.den-root *::-webkit-scrollbar-track {
  background: var(--den-bg-canvas, #0A0A14);
}

.den-root::-webkit-scrollbar-thumb,
.den-root *::-webkit-scrollbar-thumb {
  background: var(--den-panel-border, #2E2A4A);
  border-radius: var(--den-radius-xs, 4px);
}

.den-root::-webkit-scrollbar-thumb:hover,
.den-root *::-webkit-scrollbar-thumb:hover {
  background: var(--den-brand-purple, #9B59B6);
}

/* ==========================================================================
   Safe Area Viewport Helpers
   ========================================================================== */

.den-safe-top {
  padding-top: env(safe-area-inset-top, 0px);
}

.den-safe-bottom {
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

.den-safe-left {
  padding-left: env(safe-area-inset-left, 0px);
}

.den-safe-right {
  padding-right: env(safe-area-inset-right, 0px);
}

/* ==========================================================================
   Accessibility & Utility Helpers
   ========================================================================== */

.den-visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.den-tap-target {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   Reduced Motion Helpers & Failsafes
   ========================================================================== */

.den-reduced-fade {
  transition: opacity var(--den-dur-fade, 150ms) ease;
}

.den-motion-fallback {
  display: none;
}

[data-den-tier="reduced"] .den-motion-only,
:root[data-den-tier="reduced"] .den-motion-only {
  display: none !important;
}

[data-den-tier="reduced"] .den-motion-fallback,
:root[data-den-tier="reduced"] .den-motion-fallback {
  display: block !important;
}

[data-den-tier="reduced"] .den-root *,
:root[data-den-tier="reduced"] .den-root *,
[data-den-tier="reduced"] .den-root *::before,
:root[data-den-tier="reduced"] .den-root *::before,
[data-den-tier="reduced"] .den-root *::after,
:root[data-den-tier="reduced"] .den-root *::after {
  animation-duration: var(--den-dur-ui, 1ms) !important;
  animation-name: none !important;
  transition-duration: var(--den-dur-ui, 1ms) !important;
  transition-property: opacity, transform !important;
}

[data-den-tier="reduced"] .den-root .den-reduced-fade,
:root[data-den-tier="reduced"] .den-root .den-reduced-fade {
  transition-duration: var(--den-dur-fade, 150ms) !important;
}

@media (prefers-reduced-motion: reduce) {
  .den-motion-only {
    display: none !important;
  }

  .den-motion-fallback {
    display: block !important;
  }

  .den-root *, .den-root *::before, .den-root *::after {
    animation-duration: var(--den-dur-ui, 1ms) !important;
    animation-name: none !important;
    transition-duration: var(--den-dur-ui, 1ms) !important;
    transition-property: opacity, transform !important;
  }

  .den-root .den-reduced-fade {
    transition-duration: var(--den-dur-fade, 150ms) !important;
  }
}

/* Director fix: the HTML hidden attribute must always win inside kit pages (component display rules were
   overriding it, e.g. a flex card set hidden=true still showed). */
.den-root [hidden] { display: none !important; }