/* Small overrides on top of Pico.css */

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.site-brand:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
  border-radius: 0.35rem;
}

.site-brand-icon {
  position: relative;
  width: 1.25rem;
  height: 1.25rem;
  display: inline-block;
  border-radius: 0.35rem;
  background:
    radial-gradient(circle at 75% 25%, var(--pico-primary-inverse) 0.08rem, transparent 0.1rem),
    linear-gradient(140deg, var(--ui-accent-soft-strong), var(--ui-accent-soft));
  border: 1px solid color-mix(in oklab, var(--pico-primary) 45%, var(--pico-muted-border-color) 55%);
  box-shadow: var(--ui-shadow-soft);
}

.site-brand-icon::before {
  content: '';
  display: none;
  position: absolute;
  inset: 0.18rem;
}

.ui-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.1rem;
  line-height: 1;
}

.ui-icon::before {
  content: '';
  display: none;
  width: 1rem;
  height: 1rem;
}

body[data-ui-theme='identity-outline'] .ui-icon[data-icon],
body[data-ui-theme='identity-outline'] .site-brand-icon {
  color: var(--ui-icon-color);
}

body[data-ui-theme='identity-outline'] .ui-icon[data-icon] {
  font-size: 0;
}

body[data-ui-theme='identity-outline'] .ui-icon[data-icon]::before,
body[data-ui-theme='identity-outline'] .site-brand-icon::before {
  display: block;
  background: currentColor;
  -webkit-mask: var(--ui-icon-mask) center / contain no-repeat;
  mask: var(--ui-icon-mask) center / contain no-repeat;
}

body[data-ui-theme='identity-outline'] .site-brand-icon {
  background: transparent;
  border-width: 1.5px;
  box-shadow: none;
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 3l7 3v5c0 4.75-2.55 8.48-7 10-4.45-1.52-7-5.25-7-10V6l7-3z' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3Cpath d='M9.5 12l2 2 3-3.2' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

body[data-ui-theme='identity-outline'] .main-tab-labels label,
body[data-ui-theme='identity-outline'] .category-index-list a,
body[data-ui-theme='identity-outline'] .empty-state {
  color: var(--ui-icon-color);
}

body[data-ui-theme='identity-outline'] .category-tab-labels label[data-category='user-login-sso'],
body[data-ui-theme='identity-outline'] .category-tab-labels label[data-category='application-api-security'],
body[data-ui-theme='identity-outline'] .category-tab-labels label[data-category='security-enhancements'],
body[data-ui-theme='identity-outline'] .category-tab-labels label[data-category='others'] {
  color: var(--ui-icon-color);
}

body[data-ui-theme='identity-outline'] #main-tab-search:checked ~ .main-tab-labels label[for='main-tab-search'],
body[data-ui-theme='identity-outline'] #main-tab-categories:checked ~ .main-tab-labels label[for='main-tab-categories'],
body[data-ui-theme='identity-outline'] #category-tab-user-login-sso:checked ~ .category-tab-labels label[for='category-tab-user-login-sso'],
body[data-ui-theme='identity-outline'] #category-tab-application-api-security:checked ~ .category-tab-labels label[for='category-tab-application-api-security'],
body[data-ui-theme='identity-outline'] #category-tab-security-enhancements:checked ~ .category-tab-labels label[for='category-tab-security-enhancements'],
body[data-ui-theme='identity-outline'] #category-tab-others:checked ~ .category-tab-labels label[for='category-tab-others'] {
  color: var(--ui-icon-active-color);
}

body[data-ui-theme='identity-outline'] #main-tab-search:checked ~ .main-tab-labels label[for='main-tab-search'] .ui-icon[data-icon],
body[data-ui-theme='identity-outline'] #main-tab-categories:checked ~ .main-tab-labels label[for='main-tab-categories'] .ui-icon[data-icon],
body[data-ui-theme='identity-outline'] #category-tab-user-login-sso:checked ~ .category-tab-labels label[for='category-tab-user-login-sso'] .ui-icon[data-icon],
body[data-ui-theme='identity-outline'] #category-tab-application-api-security:checked ~ .category-tab-labels label[for='category-tab-application-api-security'] .ui-icon[data-icon],
body[data-ui-theme='identity-outline'] #category-tab-security-enhancements:checked ~ .category-tab-labels label[for='category-tab-security-enhancements'] .ui-icon[data-icon],
body[data-ui-theme='identity-outline'] #category-tab-others:checked ~ .category-tab-labels label[for='category-tab-others'] .ui-icon[data-icon] {
  color: var(--ui-icon-active-color);
}

body[data-ui-theme='identity-outline'] .ui-icon[data-icon='search'] {
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='11' cy='11' r='6' fill='none' stroke='black' stroke-width='2'/%3E%3Cpath d='M15.5 15.5L21 21' fill='none' stroke='black' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
}

body[data-ui-theme='identity-outline'] .ui-icon[data-icon='folder'] {
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 7.5A2.5 2.5 0 015.5 5H10l2 2h6.5A2.5 2.5 0 0121 9.5v8A2.5 2.5 0 0118.5 20h-13A2.5 2.5 0 013 17.5v-10z' fill='none' stroke='black' stroke-width='2' stroke-linejoin='round'/%3E%3C/svg%3E");
}

body[data-ui-theme='identity-outline'] .ui-icon[data-icon='user'] {
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='8' r='3' fill='none' stroke='black' stroke-width='2'/%3E%3Cpath d='M5 19a7 7 0 0114 0' fill='none' stroke='black' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
}

body[data-ui-theme='identity-outline'] .ui-icon[data-icon='lock'] {
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Crect x='5' y='11' width='14' height='9' rx='2' fill='none' stroke='black' stroke-width='2'/%3E%3Cpath d='M8 11V8a4 4 0 118 0v3' fill='none' stroke='black' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
}

body[data-ui-theme='identity-outline'] .ui-icon[data-icon='shield'] {
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 3l7 3v5c0 4.75-2.55 8.48-7 10-4.45-1.52-7-5.25-7-10V6l7-3z' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

body[data-ui-theme='identity-outline'] .ui-icon[data-icon='files'] {
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='9' fill='none' stroke='black' stroke-width='2'/%3E%3Ccircle cx='8' cy='12' r='1.2' fill='black'/%3E%3Ccircle cx='12' cy='12' r='1.2' fill='black'/%3E%3Ccircle cx='16' cy='12' r='1.2' fill='black'/%3E%3C/svg%3E");
}

body[data-ui-theme='identity-outline'] .ui-icon[data-icon='info'] {
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='9' fill='none' stroke='black' stroke-width='2'/%3E%3Cpath d='M12 10v6' fill='none' stroke='black' stroke-width='2' stroke-linecap='round'/%3E%3Ccircle cx='12' cy='7' r='1.1' fill='black'/%3E%3C/svg%3E");
}

body[data-ui-theme='identity-outline'] .ui-icon[data-icon='spec'] {
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 3.5h7l4.5 4.5v12A1.5 1.5 0 0117 21.5H7A1.5 1.5 0 015.5 20V5A1.5 1.5 0 017 3.5z' fill='none' stroke='black' stroke-width='2' stroke-linejoin='round'/%3E%3Cpath d='M14 3.5V8h4.5M9 12h6M9 15h6' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

body[data-ui-theme='identity-outline'] .ui-icon[data-icon='resource'] {
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 3.2a6.3 6.3 0 00-3.8 11.3V18a1 1 0 001 1h5.6a1 1 0 001-1v-3.5A6.3 6.3 0 0012 3.2z' fill='none' stroke='black' stroke-width='2' stroke-linejoin='round'/%3E%3Cpath d='M9.5 20.2h5M10.4 16.2h3.2' fill='none' stroke='black' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
}

body[data-ui-theme='identity-outline'] .ui-icon[data-icon='interactive'] {
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='9' fill='none' stroke='black' stroke-width='2'/%3E%3Cpath d='M10 8l6 4-6 4z' fill='none' stroke='black' stroke-width='2' stroke-linejoin='round'/%3E%3C/svg%3E");
}

body[data-ui-theme='identity-outline'] .ui-icon[data-icon='static'] {
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='9' fill='none' stroke='black' stroke-width='2'/%3E%3Crect x='9' y='9' width='6' height='6' fill='none' stroke='black' stroke-width='2'/%3E%3C/svg%3E");
}

footer {
  margin-top: 2.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--pico-muted-border-color);
}

figure.mermaid-diagram {
  margin: 1.5rem 0;
  padding: 1rem;
  background: var(--pico-card-background-color);
  border-radius: var(--pico-border-radius);
  overflow-x: auto;
  text-align: center;
}

figure.mermaid-diagram svg {
  max-width: 100%;
  height: auto;
}

/* Mermaid embeds SVG-level styles with dark text/arrow defaults. In dark mode,
   force higher-contrast foreground colors for sequence content. */
html[data-theme='dark'] figure.mermaid-diagram svg :where(
  .messageText,
  .messageText > tspan,
  .labelText,
  .labelText > tspan,
  .loopText,
  .loopText > tspan,
  .sectionTitle,
  .sectionTitle > tspan,
  .noteText,
  .noteText > tspan,
  .sequenceNumber
) {
  fill: #e8efff !important;
  stroke: none !important;
}

html[data-theme='dark'] figure.mermaid-diagram svg text.actor > tspan,
html[data-theme='dark'] figure.mermaid-diagram svg .actor.actor-box > tspan {
  fill: #1a2230 !important;
  stroke: none !important;
}

html[data-theme='dark'] figure.mermaid-diagram svg :where(
  .messageLine0,
  .messageLine1,
  .loopLine,
  .actor-line,
  .signal,
  .innerArc,
  line[marker-end],
  path[marker-end],
  line[marker-start],
  path[marker-start],
  [id$='-arrowhead'] path,
  [id$='-crosshead'] path,
  marker path
) {
  fill: #cfdcff !important;
  stroke: #cfdcff !important;
}

pre.mermaid {
  background: var(--pico-card-background-color);
  text-align: center;
  padding: 1rem;
  border-radius: var(--pico-border-radius);
}

.category-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.category-pill {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.85rem;
  background: var(--pico-primary-background);
  color: var(--pico-primary-inverse);
  border-radius: 999px;
  text-decoration: none;
}

.category-pill:hover {
  filter: brightness(1.1);
}

.reference-list {
  margin: 1rem 0;
  padding: 0.9rem 1rem 0.9rem 1.1rem;
  background: var(--ui-surface-subtle);
  border: 1px solid var(--pico-muted-border-color);
  border-left: 3px solid var(--ui-accent-soft-strong);
  border-radius: var(--pico-border-radius);
}

.reference-list h2 {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.reference-list ul {
  margin: 0;
  padding-left: 1.15rem;
}

.reference-list li + li {
  margin-top: 0.25rem;
}

.reference-list li {
  position: relative;
}

.reference-list li::marker {
  color: var(--pico-primary);
}

.reference-list a[target='_blank']::after {
  content: ' \2197';
  font-size: 0.8em;
  color: var(--pico-muted-color);
}

.category-tabs {
  margin-top: 1rem;
}

.category-tabs > input[type='radio'] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.category-tab-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.category-tab-labels label {
  --category-accent: var(--pico-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--pico-muted-border-color);
  background: var(--ui-surface-subtle);
  cursor: pointer;
  font-size: 0.92rem;
  transition: border-color 0.15s, color 0.15s, background-color 0.15s, box-shadow 0.15s;
}

.category-tab-labels label:hover {
  border-color: var(--category-accent);
  box-shadow: var(--ui-shadow-soft);
}

.category-tab-labels label:focus-visible,
.main-tab-labels label:focus-visible,
.category-pill:focus-visible,
.back-link:focus-visible,
.search-result-link:focus-visible,
.view-toggle-button:focus-visible,
.theme-toggle-select:focus-visible,
interactive-diagram .interactive-controls button:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
}

#main-tab-search:focus-visible ~ .main-tab-labels label[for='main-tab-search'],
#main-tab-categories:focus-visible ~ .main-tab-labels label[for='main-tab-categories'],
#category-tab-user-login-sso:focus-visible ~ .category-tab-labels label[for='category-tab-user-login-sso'],
#category-tab-application-api-security:focus-visible ~ .category-tab-labels label[for='category-tab-application-api-security'],
#category-tab-security-enhancements:focus-visible ~ .category-tab-labels label[for='category-tab-security-enhancements'],
#category-tab-others:focus-visible ~ .category-tab-labels label[for='category-tab-others'] {
  outline: var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
}

.category-tab-labels label[data-category='user-login-sso'] {
  --category-accent: var(--category-accent-user-login-sso);
}

.category-tab-labels label[data-category='application-api-security'] {
  --category-accent: var(--category-accent-application-api-security);
}

.category-tab-labels label[data-category='security-enhancements'] {
  --category-accent: var(--category-accent-security-enhancements);
}

.category-tab-labels label[data-category='others'] {
  --category-accent: var(--category-accent-others);
}

#category-tab-user-login-sso:checked ~ .category-tab-labels label[for='category-tab-user-login-sso'],
#category-tab-application-api-security:checked ~ .category-tab-labels label[for='category-tab-application-api-security'],
#category-tab-security-enhancements:checked ~ .category-tab-labels label[for='category-tab-security-enhancements'],
#category-tab-others:checked ~ .category-tab-labels label[for='category-tab-others'] {
  border-color: var(--category-accent);
  color: var(--pico-primary-inverse);
  background: var(--category-accent);
}

#category-tab-user-login-sso:checked ~ .category-tab-panel[data-tab='user-login-sso'],
#category-tab-application-api-security:checked ~ .category-tab-panel[data-tab='application-api-security'],
#category-tab-security-enhancements:checked ~ .category-tab-panel[data-tab='security-enhancements'],
#category-tab-others:checked ~ .category-tab-panel[data-tab='others'] {
  border-top: 2px solid var(--ui-accent-soft-strong);
  padding-top: 0.85rem;
}

#category-tab-user-login-sso:checked ~ .category-tab-panel[data-tab='user-login-sso'] {
  border-top-color: color-mix(in oklab, var(--category-accent-user-login-sso) 60%, var(--pico-muted-border-color) 40%);
}

#category-tab-application-api-security:checked ~ .category-tab-panel[data-tab='application-api-security'] {
  border-top-color: color-mix(in oklab, var(--category-accent-application-api-security) 60%, var(--pico-muted-border-color) 40%);
}

#category-tab-security-enhancements:checked ~ .category-tab-panel[data-tab='security-enhancements'] {
  border-top-color: color-mix(in oklab, var(--category-accent-security-enhancements) 60%, var(--pico-muted-border-color) 40%);
}

#category-tab-others:checked ~ .category-tab-panel[data-tab='others'] {
  border-top-color: color-mix(in oklab, var(--category-accent-others) 60%, var(--pico-muted-border-color) 40%);
}

.category-tab-panel {
  display: none;
}

#category-tab-user-login-sso:checked ~ .category-tab-panel[data-tab='user-login-sso'],
#category-tab-application-api-security:checked ~ .category-tab-panel[data-tab='application-api-security'],
#category-tab-security-enhancements:checked ~ .category-tab-panel[data-tab='security-enhancements'],
#category-tab-others:checked ~ .category-tab-panel[data-tab='others'] {
  display: block;
}

/* Main (outer) tabs — Search | Browse by Category */

.main-tabs {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--ui-surface-subtle);
  border: 1px solid var(--pico-muted-border-color);
  border-radius: var(--pico-border-radius);
  box-shadow: var(--ui-shadow-soft);
}

.main-tabs > input[type='radio'] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.main-tab-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--pico-muted-border-color);
  padding-bottom: 1rem;
}

.main-tab-labels label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--pico-muted-border-color);
  background: var(--ui-surface-subtle);
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 500;
  transition: border-color 0.15s, color 0.15s, background-color 0.15s, box-shadow 0.15s;
}

.main-tab-labels label:hover {
  border-color: var(--pico-primary);
  box-shadow: var(--ui-shadow-soft);
}

.label-icon {
  opacity: 0.9;
}

body[data-ui-theme='identity-outline'] .label-icon {
  opacity: 0.9;
}

.empty-state {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.85rem 1rem;
  border: 1px dashed var(--pico-muted-border-color);
  border-left: 3px solid var(--ui-accent-soft-strong);
  border-radius: var(--pico-border-radius);
  color: var(--pico-muted-color);
  background: var(--ui-surface-subtle);
}

.empty-state-icon {
  font-size: 0.9rem;
}

.category-index-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.category-index-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--pico-muted-border-color);
  border-radius: var(--pico-border-radius);
  background: var(--ui-surface-subtle);
}

.category-index-list li:has(a:hover),
.category-index-list li:has(a:focus-visible) {
  border-color: var(--pico-primary);
  box-shadow: var(--ui-shadow-soft);
}

.category-index-list li small {
  color: var(--pico-muted-color);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 500;
}

#main-tab-search:checked ~ .main-tab-labels label[for='main-tab-search'],
#main-tab-categories:checked ~ .main-tab-labels label[for='main-tab-categories'] {
  border-color: var(--pico-primary);
  color: var(--pico-primary-inverse);
  background: var(--pico-primary);
}

.main-tab-panel {
  display: none;
}

#main-tab-search:checked ~ .main-tab-panel[data-tab='search'],
#main-tab-categories:checked ~ .main-tab-panel[data-tab='categories'] {
  display: block;
}

/* Keep spacing between top-level sections (but not inside tab panels) */
main > section + section {
  margin-top: 2rem;
}

/* Web components */

theme-toggle {
  display: block;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.14rem;
  border: 1px solid var(--pico-muted-border-color);
  border-radius: 999px;
  background: var(--ui-surface-subtle);
}

.theme-toggle-current {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 1.72rem;
  min-height: 1.72rem;
  border-radius: 999px;
  background: var(--ui-accent-soft);
  color: var(--pico-color);
  font-size: 0.95rem;
  line-height: 1;
}

.theme-toggle-current::before {
  content: '';
  display: none;
  width: 0.95rem;
  height: 0.95rem;
  background: currentColor;
  -webkit-mask: var(--ui-icon-mask) center / contain no-repeat;
  mask: var(--ui-icon-mask) center / contain no-repeat;
}

body[data-ui-theme='identity-outline'] .theme-toggle-current {
  color: var(--ui-icon-color);
  font-size: 0;
}

body[data-ui-theme='identity-outline'] .theme-toggle-current::before {
  display: block;
}

body[data-ui-theme='identity-outline'] .theme-toggle-current[data-mode='auto'] {
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='9' fill='none' stroke='black' stroke-width='2'/%3E%3Cpath d='M9 16l3-8 3 8M10.2 13h3.6' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

body[data-ui-theme='identity-outline'] .theme-toggle-current[data-mode='light'] {
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='4' fill='none' stroke='black' stroke-width='2'/%3E%3Cpath d='M12 2.5v3M12 18.5v3M2.5 12h3M18.5 12h3M5.2 5.2l2.1 2.1M16.7 16.7l2.1 2.1M18.8 5.2l-2.1 2.1M7.3 16.7l-2.1 2.1' fill='none' stroke='black' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
}

body[data-ui-theme='identity-outline'] .theme-toggle-current[data-mode='dark'] {
  --ui-icon-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M15.2 3.2A8.7 8.7 0 1019.8 17 7.8 7.8 0 0115.2 3.2z' fill='none' stroke='black' stroke-width='2' stroke-linejoin='round'/%3E%3C/svg%3E");
}

.theme-toggle-select {
  border-radius: 999px;
  margin: 0;
  width: 2.7rem;
  min-height: 1.72rem;
  padding: 0.1rem 1.1rem 0.1rem 0.35rem;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  text-align-last: center;
  border: 1px solid transparent;
  background-color: var(--pico-card-background-color);
  color: var(--pico-color);
  line-height: 1;
}

.theme-toggle-select:hover {
  border-color: var(--pico-primary);
}

mermaid-diagram {
  display: block;
}

.diagram-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

diagram-card {
  display: block;
  position: relative;
  padding: 1rem;
  background: var(--ui-surface-subtle);
  border: 1px solid var(--pico-muted-border-color);
  border-radius: var(--pico-border-radius);
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}

diagram-card:hover,
diagram-card:focus-visible {
  border-color: var(--pico-primary);
  transform: translateY(-2px);
  box-shadow: var(--ui-shadow-lifted);
  outline: var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
}

diagram-card h3 {
  margin: 0 0 0.25rem;
  font-size: 1.05rem;
}

diagram-card p {
  margin: 0;
  color: var(--pico-muted-color);
  font-size: 0.9rem;
}

interactive-diagram {
  display: block;
}

interactive-diagram .interactive-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin: 1rem 0 0.5rem;
}

interactive-diagram .interactive-controls button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin: 0;
  width: auto;
  padding: 0.4rem 0.9rem;
  font-size: 0.9rem;
  text-align: center;
}

interactive-diagram .interactive-controls button .ui-icon {
  color: currentColor;
  opacity: 1;
}

body[data-ui-theme='identity-outline'] interactive-diagram .interactive-controls button .ui-icon[data-icon] {
  color: currentColor;
}

interactive-diagram .interactive-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
}

interactive-diagram .interactive-toggle-icon {
  width: 1rem;
}

interactive-diagram .interactive-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

interactive-diagram .interactive-nav output {
  min-width: 7rem;
  text-align: center;
  font-variant-numeric: tabular-nums;
  color: var(--pico-muted-color);
  font-size: 0.9rem;
}

interactive-diagram .interactive-status {
  flex-basis: 100%;
  color: var(--pico-del-color, var(--pico-muted-color));
  font-size: 0.85rem;
}

/* Per-arrow message details */

interactive-diagram {
  position: relative;
}

interactive-diagram [data-details-ordinal] {
  cursor: pointer;
}

interactive-diagram text.messageText[data-details-ordinal]:hover,
interactive-diagram text.messageText[data-details-ordinal]:focus-visible {
  fill: var(--pico-primary);
  outline: none;
}

interactive-diagram line[data-details-ordinal]:focus-visible,
interactive-diagram path[data-details-ordinal]:focus-visible {
  outline: 2px solid var(--pico-primary);
  outline-offset: 2px;
}

interactive-diagram .message-detail-hint {
  position: absolute;
  z-index: 5;
  pointer-events: none;
  padding: 0.15rem 0.45rem;
  background: var(--pico-contrast);
  color: var(--pico-contrast-inverse);
  border-radius: var(--pico-border-radius);
  font-size: 0.75rem;
  line-height: 1.2;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

interactive-diagram .message-detail-hint[hidden] {
  display: none;
}

dialog.message-detail-dialog article {
  max-width: min(90vw, 720px);
  width: 100%;
}

dialog.message-detail-dialog header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

dialog.message-detail-dialog header h3 {
  margin: 0;
  font-size: 1.05rem;
}

dialog.message-detail-dialog .message-detail-body {
  margin: 0;
  padding: 0.75rem 1rem;
  background: var(--pico-code-background-color, var(--pico-card-background-color));
  color: var(--pico-code-color, inherit);
  border-radius: var(--pico-border-radius);
  font-family: var(--pico-font-family-monospace);
  font-size: 0.85rem;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 60vh;
  overflow: auto;
}

/* Search components */

search-box {
  display: block;
  margin-bottom: 1.5rem;
}

search-box input {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  border: 1px solid var(--pico-muted-border-color);
  border-radius: var(--pico-border-radius);
  background: var(--pico-form-element-background-color);
  color: inherit;
  transition: border-color 0.15s;
}

search-box input:focus {
  border-color: var(--pico-primary);
  outline: var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
}

search-results {
  display: block;
}

.view-toggle-container {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 1rem;
}

.view-toggle-button {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  background: var(--pico-primary);
  color: var(--pico-primary-inverse);
  border: none;
  border-radius: var(--pico-border-radius);
  cursor: pointer;
  transition: filter 0.15s;
}

.view-toggle-button:hover {
  filter: brightness(1.1);
}

.search-results-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.search-results-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.search-result-item {
  position: relative;
  padding: 1rem;
  background: var(--ui-surface-subtle);
  border: 1px solid var(--pico-muted-border-color);
  border-radius: var(--pico-border-radius);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.search-result-item:hover {
  border-color: var(--pico-primary);
  box-shadow: var(--ui-shadow-soft);
}

.search-result-protocol {
  position: absolute;
  top: 0.7rem;
  right: 0.8rem;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--pico-muted-border-color) 65%, var(--pico-primary) 35%);
  background: color-mix(in oklab, var(--pico-card-background-color) 82%, var(--pico-primary) 18%);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--pico-muted-color);
}

.search-result-item .search-result-link {
  padding-right: 4rem;
}

.search-result-link {
  display: block;
  color: inherit;
  text-decoration: none;
  margin-bottom: 0.5rem;
}

.search-result-link:hover {
  color: var(--pico-primary);
}

.search-result-link:focus-visible {
  text-decoration: underline;
  text-decoration-thickness: 0.12em;
}

@media (prefers-contrast: more) {
  :root {
    --focus-ring: 3px solid var(--pico-primary);
  }

  .main-tabs,
  .reference-list,
  diagram-card,
  .search-result-item,
  .category-index-list li {
    border-width: 2px;
  }

  diagram-card::before,
  .search-result-protocol {
    border-width: 2px;
    font-weight: 800;
  }
}

.search-result-title {
  margin: 0 0 0.25rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.search-result-description {
  margin: 0;
  color: var(--pico-muted-color);
  font-size: 0.95rem;
  line-height: 1.4;
}

.search-result-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.75rem;
  font-size: 0.85rem;
}

.search-result-categories,
.search-result-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.category-pill,
.tag-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
  border-radius: 999px;
  white-space: nowrap;
}

.category-pill {
  background: var(--pico-primary-background);
  color: var(--pico-primary-inverse);
}

.tag-badge {
  background: var(--pico-contrast-background);
  color: var(--pico-contrast-inverse);
  font-weight: 500;
}

.search-no-results {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--pico-muted-color);
  padding: 1.1rem 1rem;
  border: 1px dashed var(--pico-muted-border-color);
  border-radius: var(--pico-border-radius);
  background: var(--ui-surface-subtle);
}

@media (max-width: 768px) {
  .theme-toggle {
    max-width: 100%;
  }

  .theme-toggle-select {
    width: 2.6rem;
  }

  .main-tabs {
    margin-top: 1.5rem;
    padding: 0.85rem;
  }

  .main-tab-labels,
  .category-tab-labels {
    gap: 0.35rem;
    margin-bottom: 0.85rem;
    padding-bottom: 0.65rem;
  }

  .main-tab-labels label,
  .category-tab-labels label {
    padding: 0.38rem 0.7rem;
    font-size: 0.88rem;
  }

  .label-icon {
    width: 0.9rem;
  }

  .diagram-grid,
  .search-results-grid {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  diagram-card {
    padding: 0.9rem;
  }

  .search-result-protocol {
    font-size: 0.64rem;
  }

  interactive-diagram .interactive-controls {
    align-items: stretch;
    gap: 0.45rem;
  }

  interactive-diagram .interactive-toggle {
    width: 100%;
  }

  interactive-diagram .interactive-nav {
    width: 100%;
    justify-content: space-between;
  }

  interactive-diagram .interactive-nav output {
    min-width: 6rem;
    font-size: 0.84rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .main-tab-labels label,
  .category-tab-labels label,
  diagram-card,
  .search-result-item,
  .category-pill,
  .view-toggle-button {
    transition: none;
  }

  diagram-card:hover,
  diagram-card:focus-visible {
    transform: none;
  }

  .category-index-list li:has(a:hover),
  .category-index-list li:has(a:focus-visible) {
    box-shadow: none;
  }
}