/* ==========================================================================
   demangle In-Browser Standalone Playground Stylesheet
   Material Design Light & Slate Dark Palettes
   ========================================================================== */

:root {
  --md-default-fg-color: #202124;
  --md-default-bg-color: #ffffff;
  --md-code-bg-color: #f8f9fa;
  --md-code-fg-color: #202124;
  --md-primary-fg-color: #1a73e8;
  --md-primary-fg-color--light: #e8f0fe;
  --md-default-fg-color--light: #5f6368;
  --md-default-fg-color--lighter: #80868b;
  --md-default-fg-color--lightest: rgba(0, 0, 0, 0.08);
  --md-text-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --md-code-font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

[data-theme="dark"] {
  --md-default-fg-color: #e8eaed;
  --md-default-bg-color: #1a1b1e;
  --md-code-bg-color: #24262b;
  --md-code-fg-color: #e8eaed;
  --md-primary-fg-color: #8ab4f8;
  --md-primary-fg-color--light: rgba(138, 180, 248, 0.15);
  --md-default-fg-color--light: #9aa0a6;
  --md-default-fg-color--lighter: #bdc1c6;
  --md-default-fg-color--lightest: rgba(255, 255, 255, 0.12);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --md-default-fg-color: #e8eaed;
    --md-default-bg-color: #1a1b1e;
    --md-code-bg-color: #24262b;
    --md-code-fg-color: #e8eaed;
    --md-primary-fg-color: #8ab4f8;
    --md-primary-fg-color--light: rgba(138, 180, 248, 0.15);
    --md-default-fg-color--light: #9aa0a6;
    --md-default-fg-color--lighter: #bdc1c6;
    --md-default-fg-color--lightest: rgba(255, 255, 255, 0.12);
  }
}

*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background-color: var(--md-default-bg-color);
  color: var(--md-default-fg-color);
  font-family: var(--md-text-font-family);
  overflow-x: hidden;
}

/* Standalone App Navbar */
.playground-standalone-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  background-color: var(--md-code-bg-color);
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
  box-sizing: border-box;
  width: 100%;
}

.nav-brand-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  color: var(--md-default-fg-color);
  font-weight: 700;
  font-size: 1.15rem;
}

.nav-brand .brand-icon {
  font-size: 1.25rem;
}

.nav-app-tag {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  background-color: var(--md-primary-fg-color--light);
  color: var(--md-primary-fg-color);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.nav-link, .nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  text-decoration: none;
  color: var(--md-default-fg-color--light);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
}

.nav-link:hover, .nav-btn:hover {
  color: var(--md-default-fg-color);
  background-color: var(--md-default-fg-color--lightest);
}

.nav-link:focus-visible, .nav-btn:focus-visible {
  outline: 2px solid var(--md-primary-fg-color);
  outline-offset: 1px;
}

@media (max-width: 480px) {
  .playground-standalone-nav {
    padding: 0.5rem 0.75rem;
    gap: 0.5rem;
  }
  .nav-brand {
    font-size: 1rem;
  }
  .nav-link, .nav-btn {
    padding: 0.3rem 0.5rem;
    font-size: 0.8rem;
  }
}


/* ==========================================================================
   demangle In-Browser Playground Stylesheet
   Material for MkDocs Light & Slate Dark Theme Integration
   ========================================================================== */

.playground-root {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin: 1.5rem 0 3rem 0;
  font-family: var(--md-text-font-family, inherit);
  color: var(--md-default-fg-color);
}

/* Header & Status Banner */
.playground-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background-color: var(--md-code-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest, rgba(0, 0, 0, 0.08));
  border-radius: 6px;
}

.playground-header-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.playground-title-badge {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--md-primary-fg-color);
}

.playground-engine-tag {
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  background-color: var(--md-default-fg-color--lightest, rgba(0, 0, 0, 0.05));
  color: var(--md-default-fg-color--light);
}

.playground-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  transition: all 0.2s ease;
}

.status-loading {
  background-color: #fef3c7;
  color: #92400e;
}

[data-md-color-scheme="slate"] .status-loading {
  background-color: #78350f;
  color: #fef3c7;
}

.status-ready {
  background-color: #d1fae5;
  color: #065f46;
}

[data-md-color-scheme="slate"] .status-ready {
  background-color: #064e3b;
  color: #a7f3d0;
}

.status-busy {
  background-color: #dbeafe;
  color: #1e40af;
}

[data-md-color-scheme="slate"] .status-busy {
  background-color: #1e3a8a;
  color: #bfdbfe;
}

.status-error {
  background-color: #fee2e2;
  color: #991b1b;
}

[data-md-color-scheme="slate"] .status-error {
  background-color: #7f1d1d;
  color: #fecaca;
}

.status-spinner {
  width: 0.75rem;
  height: 0.75rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: pg-spin 0.8s linear infinite;
}

@keyframes pg-spin {
  to { transform: rotate(360deg); }
}

/* Presets Toolbar */
.playground-presets-section {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.presets-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.presets-hint {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--md-default-fg-color--light);
}

.presets-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.preset-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
  border: 1px solid var(--md-default-fg-color--lighter, #cbd5e1);
  background-color: var(--md-default-bg-color);
  color: var(--md-default-fg-color);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.preset-btn:hover {
  border-color: var(--md-primary-fg-color);
  background-color: var(--md-code-bg-color);
}

.preset-btn.active {
  background-color: var(--md-primary-fg-color);
  border-color: var(--md-primary-fg-color);
  color: #ffffff;
}

.preset-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background-color: var(--md-default-fg-color--lightest, rgba(0, 0, 0, 0.08));
}

.preset-bleeding {
  border-color: #818cf8;
}

.preset-bleeding .preset-badge {
  background-color: #e0e7ff;
  color: #4338ca;
}

[data-md-color-scheme="slate"] .preset-bleeding .preset-badge {
  background-color: #312e81;
  color: #c7d2fe;
}

/* Cards & Containers */
.playground-card {
  display: flex;
  flex-direction: column;
  background-color: var(--md-default-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest, rgba(0, 0, 0, 0.12));
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--md-shadow-z1, 0 1px 3px rgba(0, 0, 0, 0.05));
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.65rem 1rem;
  background-color: var(--md-code-bg-color);
  border-bottom: 1px solid var(--md-default-fg-color--lightest, rgba(0, 0, 0, 0.08));
}

.card-title {
  font-size: 0.85rem;
  font-weight: 700;
  margin: 0;
}

.card-title-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-badge {
  font-size: 0.75rem;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  background-color: var(--md-default-fg-color--lightest);
  color: var(--md-default-fg-color--light);
}

/* Textarea Input */
.input-wrapper {
  padding: 0.75rem 1rem;
}

.playground-textarea {
  width: 100%;
  font-family: var(--md-code-font-family, monospace);
  font-size: 0.9rem;
  padding: 0.6rem 0.75rem;
  background-color: var(--md-default-bg-color);
  color: var(--md-default-fg-color);
  border: 1px solid var(--md-default-fg-color--lighter, #94a3b8);
  border-radius: 6px;
  box-sizing: border-box;
  resize: vertical;
}

.playground-textarea:focus {
  outline: none;
  border-color: var(--md-primary-fg-color);
  box-shadow: 0 0 0 2px rgba(63, 81, 181, 0.2);
}

/* Controls Grid */
.playground-controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  padding: 0.75rem 1rem;
  background-color: var(--md-code-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest, rgba(0, 0, 0, 0.08));
  border-radius: 8px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.control-label {
  font-size: 0.8rem;
  font-weight: 700;
}

.playground-select {
  padding: 0.4rem 0.6rem;
  font-size: 0.85rem;
  background-color: var(--md-default-bg-color);
  color: var(--md-default-fg-color);
  border: 1px solid var(--md-default-fg-color--lighter, #94a3b8);
  border-radius: 6px;
}

.control-subtext {
  font-size: 0.75rem;
  color: var(--md-default-fg-color--light);
}

.detected-tag {
  font-weight: 700;
  color: var(--md-primary-fg-color);
}

/* Segmented Control */
.segmented-control {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  width: 100%;
  background-color: var(--md-default-fg-color--lightest, rgba(0, 0, 0, 0.06));
  padding: 0.2rem;
  border-radius: 6px;
  gap: 0.2rem;
}

.segmented-option {
  position: relative;
  cursor: pointer;
  min-width: 0;
  text-align: center;
}

.segmented-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segmented-option span {
  display: block;
  font-size: 0.78rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  transition: all 0.15s ease;
  user-select: none;
}

.segmented-option input:checked + span {
  background-color: var(--md-default-bg-color);
  font-weight: 700;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  color: var(--md-primary-fg-color);
}

/* Demangled Output Display */
.output-container {
  padding: 1rem;
}

.output-code-display {
  font-family: var(--md-code-font-family, monospace);
  font-size: 0.95rem;
  line-height: 1.5;
  padding: 0.85rem 1rem;
  background-color: var(--md-code-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest, rgba(0, 0, 0, 0.08));
  border-left: 4px solid var(--md-primary-fg-color);
  border-radius: 6px;
  overflow-x: auto;
  word-break: break-all;
  white-space: pre-wrap;
  user-select: text;
}

.output-placeholder {
  color: var(--md-default-fg-color--light);
  font-style: italic;
}

.output-status-pill {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  border-radius: 12px;
}

.pill-idle {
  background-color: #e2e8f0;
  color: #475569;
}

[data-md-color-scheme="slate"] .pill-idle {
  background-color: #334155;
  color: #94a3b8;
}

.pill-valid {
  background-color: #d1fae5;
  color: #065f46;
}

[data-md-color-scheme="slate"] .pill-valid {
  background-color: #064e3b;
  color: #a7f3d0;
}

.pill-invalid {
  background-color: #fee2e2;
  color: #991b1b;
}

[data-md-color-scheme="slate"] .pill-invalid {
  background-color: #7f1d1d;
  color: #fecaca;
}

.playground-error-banner {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.75rem;
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
  border-radius: 6px;
  font-size: 0.82rem;
}

[data-md-color-scheme="slate"] .playground-error-banner {
  background-color: #450a0a;
  border-color: #7f1d1d;
  color: #fca5a5;
}

/* Action & Copy Buttons */
.btn-action-small, .btn-copy {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  padding: 0.25rem 0.55rem;
  border-radius: 4px;
  border: 1px solid var(--md-default-fg-color--lighter, #cbd5e1);
  background-color: var(--md-default-bg-color);
  color: var(--md-default-fg-color);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-action-small:hover, .btn-copy:hover {
  background-color: var(--md-code-bg-color);
  border-color: var(--md-primary-fg-color);
}

/* Signature Grid */
.sig-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0.75rem;
  padding: 1rem;
}

.sig-cell {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.5rem 0.75rem;
  background-color: var(--md-code-bg-color);
  border-radius: 6px;
  border: 1px solid var(--md-default-fg-color--lightest, rgba(0, 0, 0, 0.05));
}

.sig-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--md-default-fg-color--light);
}

.sig-val {
  font-family: var(--md-code-font-family, monospace);
  font-size: 0.85rem;
  word-break: break-all;
}

.sig-val-params {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.param-chip {
  font-family: var(--md-code-font-family, monospace);
  font-size: 0.78rem;
  padding: 0.1rem 0.4rem;
  background-color: var(--md-default-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 4px;
}

.param-empty {
  font-style: italic;
  color: var(--md-default-fg-color--light);
}

/* AST Visualizer Tabs & Panels */
.ast-tab-bar {
  display: flex;
  gap: 0.35rem;
}

.tab-btn {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  background-color: transparent;
  border: none;
  border-radius: 4px;
  color: var(--md-default-fg-color--light);
  cursor: pointer;
  transition: all 0.15s ease;
}

.tab-btn:hover {
  color: var(--md-default-fg-color);
}

.tab-btn.active {
  background-color: var(--md-default-bg-color);
  color: var(--md-primary-fg-color);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.ast-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.ast-panel {
  padding: 1rem;
  max-height: 520px;
  overflow-y: auto;
}

.ast-json-pre {
  margin: 0;
  padding: 1rem;
  background-color: var(--md-code-bg-color);
  border-radius: 6px;
  font-family: var(--md-code-font-family, monospace);
  font-size: 0.82rem;
  line-height: 1.45;
  overflow-x: auto;
}

/* AST Tree View Styling */
.ast-tree-root {
  font-family: var(--md-code-font-family, monospace);
  font-size: 0.85rem;
  line-height: 1.6;
}

.ast-branch {
  margin: 0.15rem 0;
}

.ast-summary {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  transition: background-color 0.1s ease;
  user-select: none;
}

.ast-summary:hover {
  background-color: var(--md-default-fg-color--lightest, rgba(0, 0, 0, 0.04));
}

.ast-role {
  color: var(--md-default-fg-color--light);
  font-size: 0.78rem;
  font-weight: 600;
}

.ast-list {
  list-style: none;
  padding-left: 1.25rem;
  margin: 0.2rem 0;
  border-left: 1px dashed var(--md-default-fg-color--lighter, #cbd5e1);
}

.ast-list-item {
  margin: 0.2rem 0;
}

.ast-leaf {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.15rem 0.4rem;
  font-size: 0.82rem;
}

.ast-ref-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  background-color: #ede9fe;
  color: #6d28d9;
  cursor: pointer;
  border: 1px solid #c4b5fd;
  transition: all 0.15s ease;
}

.ast-ref-badge:hover {
  background-color: #ddd6fe;
  border-color: #8b5cf6;
}

[data-md-color-scheme="slate"] .ast-ref-badge {
  background-color: #2e1065;
  color: #c4b5fd;
  border-color: #5b21b6;
}

.ast-node-highlight {
  animation: pg-highlight 1.5s ease;
}

@keyframes pg-highlight {
  0% { background-color: rgba(99, 102, 241, 0.4); }
  100% { background-color: transparent; }
}

.ast-placeholder, .ast-placeholder-error {
  color: var(--md-default-fg-color--light);
  font-style: italic;
  padding: 1rem;
}

/* Keep native selects and long labels inside their tracks at any text size. */
.playground-root *, .playground-root *::before, .playground-root *::after {
  box-sizing: border-box;
}

.playground-root, .playground-root > *, .control-group, .select-wrapper,
.sig-cell, .card-title-group {
  min-width: 0;
}

.playground-controls-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
}

.playground-select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.segmented-option span {
  overflow-wrap: anywhere;
}

.segmented-option input:focus-visible + span,
.playground-root button:focus-visible, .playground-root summary:focus-visible,
.playground-select:focus-visible {
  outline: 2px solid var(--md-primary-fg-color);
  outline-offset: 2px;
}

.sig-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
}

.card-header, .card-title-group, .ast-actions, .ast-tab-bar, .presets-label {
  flex-wrap: wrap;
  gap: 0.5rem;
}

.playground-header-info, .control-subtext, .card-title, .card-badge,
.param-chip, .playground-error-banner, .ast-leaf, .ast-summary {
  overflow-wrap: anywhere;
}

.ast-summary {
  display: list-item;
  list-style-position: inside;
}

.ast-leaf {
  display: block;
}

.ast-list {
  padding-left: 0.75rem;
}

.ast-load-more {
  margin: 0.3rem;
}

.playground-root button:disabled {
  cursor: default;
  opacity: 0.55;
}

.playground-root [hidden] {
  display: none !important;
}

.ast-render-notice {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
}

@media (prefers-reduced-motion: reduce) {
  .playground-root *, .playground-root *::before, .playground-root *::after {
    animation: none;
    transition: none;
    scroll-behavior: auto;
  }
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Material styles every details element as an admonition; these are plain AST branches. */
.md-typeset .playground-root .ast-branch {
  padding: 0;
  border: 0;
  box-shadow: none;
  background: transparent;
  font-size: inherit;
}

.md-typeset .playground-root .ast-summary {
  margin: 0;
  padding: 0.2rem 0.4rem;
  background: var(--md-code-bg-color);
  border-radius: 4px;
  font-weight: 600;
}

.md-typeset .playground-root .ast-summary::before,
.md-typeset .playground-root .ast-summary::after {
  display: none;
}

.playground-status {
  max-width: 100%;
  min-width: 0;
  overflow-wrap: anywhere;
}

.status-spinner {
  flex-shrink: 0;
}

.playground-root button {
  max-width: 100%;
  min-width: 0;
  white-space: normal;
  overflow-wrap: anywhere;
}

.copy-label {
  min-width: 0;
}

/* Keep the documentation header usable with enlarged text on this page. */
body:has(.playground-root) .md-header__inner {
  min-width: 0;
}
body:has(.playground-root) .md-header__button {
  flex-shrink: 0;
  margin: 4px;
  padding: 8px;
}
body:has(.playground-root) .md-header__button svg {
  width: 24px;
  height: 24px;
}
body:has(.playground-root) .md-header__source {
  min-width: 0;
  max-width: 22vw;
}
body:has(.playground-root) .md-source__repository {
  overflow: hidden;
  text-overflow: ellipsis;
}