/* ============================================================
   pignal web — Minimal & Clean design system (Pico CSS v2)

   Layout patterns:
   A. Dashboard  — hgroup + stat-grid + sections
   B. List       — hgroup + filter-bar + card list + pagination
   C. Detail     — breadcrumb + detail-layout (content + sidebar)
   D. CRUD table — hgroup + article>table + article>form
   E. Settings   — hgroup + grouped articles with headers
   ============================================================ */


/* ============================================================
   Semantic color tokens - light mode
   ============================================================ */
:root:not([data-theme="dark"]),
[data-theme="light"] {
  --app-success: #059669;
  --app-success-bg: color-mix(in srgb, #059669 10%, transparent);
  --app-success-border: color-mix(in srgb, #059669 25%, transparent);

  --app-error: #DC2626;
  --app-error-bg: color-mix(in srgb, #DC2626 10%, transparent);
  --app-error-border: color-mix(in srgb, #DC2626 25%, transparent);

  --app-info: #7C3AED;
  --app-info-bg: color-mix(in srgb, #7C3AED 10%, transparent);
  --app-info-border: color-mix(in srgb, #7C3AED 25%, transparent);

  --app-warning: #D97706;
  --app-warning-bg: color-mix(in srgb, #D97706 10%, transparent);
  --app-warning-border: color-mix(in srgb, #D97706 25%, transparent);

  --app-type-insight: #8B5CF6;
  --app-type-decision: #3B82F6;
  --app-type-solution: #10B981;
  --app-type-core: #F59E0B;
  --app-type-default: #6B7280;

  --app-toast-success-bg: color-mix(in srgb, #059669 12%, var(--pico-card-background-color));
  --app-toast-error-bg: color-mix(in srgb, #DC2626 12%, var(--pico-card-background-color));
}

/* ============================================================
   Semantic color tokens - auto dark (system preference)
   ============================================================ */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --app-success: #34D399;
    --app-success-bg: color-mix(in srgb, #34D399 15%, transparent);
    --app-success-border: color-mix(in srgb, #34D399 30%, transparent);

    --app-error: #F87171;
    --app-error-bg: color-mix(in srgb, #F87171 15%, transparent);
    --app-error-border: color-mix(in srgb, #F87171 30%, transparent);

    --app-info: #A78BFA;
    --app-info-bg: color-mix(in srgb, #A78BFA 15%, transparent);
    --app-info-border: color-mix(in srgb, #A78BFA 30%, transparent);

    --app-warning: #FBBF24;
    --app-warning-bg: color-mix(in srgb, #FBBF24 15%, transparent);
    --app-warning-border: color-mix(in srgb, #FBBF24 30%, transparent);

    --app-type-insight: #A78BFA;
    --app-type-decision: #60A5FA;
    --app-type-solution: #34D399;
    --app-type-core: #FBBF24;
    --app-type-default: #9CA3AF;

    --app-toast-success-bg: color-mix(in srgb, #34D399 18%, var(--pico-card-background-color));
    --app-toast-error-bg: color-mix(in srgb, #F87171 18%, var(--pico-card-background-color));
  }
}

/* ============================================================
   Semantic color tokens - forced dark mode
   ============================================================ */
[data-theme="dark"] {
  --app-success: #34D399;
  --app-success-bg: color-mix(in srgb, #34D399 15%, transparent);
  --app-success-border: color-mix(in srgb, #34D399 30%, transparent);

  --app-error: #F87171;
  --app-error-bg: color-mix(in srgb, #F87171 15%, transparent);
  --app-error-border: color-mix(in srgb, #F87171 30%, transparent);

  --app-info: #A78BFA;
  --app-info-bg: color-mix(in srgb, #A78BFA 15%, transparent);
  --app-info-border: color-mix(in srgb, #A78BFA 30%, transparent);

  --app-warning: #FBBF24;
  --app-warning-bg: color-mix(in srgb, #FBBF24 15%, transparent);
  --app-warning-border: color-mix(in srgb, #FBBF24 30%, transparent);

  --app-type-insight: #A78BFA;
  --app-type-decision: #60A5FA;
  --app-type-solution: #34D399;
  --app-type-core: #FBBF24;
  --app-type-default: #9CA3AF;

  --app-toast-success-bg: color-mix(in srgb, #34D399 18%, var(--pico-card-background-color));
  --app-toast-error-bg: color-mix(in srgb, #F87171 18%, var(--pico-card-background-color));
}

/* ============================================================
   Navigation
   ============================================================ */
nav a[aria-current="page"] {
  font-weight: 600;
  color: var(--pico-primary);
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  width: auto;
  padding: calc(var(--pico-spacing) * 0.25) calc(var(--pico-spacing) * 0.4);
  margin: 0;
  color: var(--pico-muted-color);
  border-radius: var(--pico-border-radius);
  transition: color var(--pico-transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
}
.theme-toggle:hover {
  color: var(--pico-color);
}

/* Scope header nav rules to [aria-label="Source navigation"] to avoid
   leaking into .source-nav / .source-breadcrumb */
nav[aria-label="Source navigation"] ul:last-child {
  gap: 0;
}
nav[aria-label="Source navigation"] ul:last-child li {
  white-space: nowrap;
}

nav details.dropdown > summary.active {
  font-weight: 600;
  color: var(--pico-primary);
}

@media (max-width: 992px) {
  nav[aria-label="Source navigation"] ul:last-child {
    flex-wrap: wrap;
    justify-content: flex-end;
  }
  nav[aria-label="Source navigation"] ul:last-child li {
    font-size: 0.9rem;
  }
}
@media (max-width: 576px) {
  nav[aria-label="Source navigation"] {
    flex-direction: column;
    gap: calc(var(--pico-spacing) * 0.5);
  }
  nav[aria-label="Source navigation"] ul:last-child {
    justify-content: center;
  }
}

/* ============================================================
   Page header — hgroup with title + subtitle
   ============================================================ */
main > hgroup {
  margin-bottom: calc(var(--pico-spacing) * 2);
  padding-bottom: calc(var(--pico-spacing) * 1.25);
  border-bottom: 1px solid var(--pico-muted-border-color);
}
main > hgroup h1 {
  letter-spacing: -0.02em;
  font-weight: 700;
}
main > hgroup p {
  font-size: 0.95rem;
  line-height: 1.5;
}

/* ============================================================
   Section headings (admin)
   ============================================================ */
article > header h2,
section h2 {
  letter-spacing: -0.01em;
  font-weight: 700;
}

/* ============================================================
   Breadcrumb (detail page back link)
   ============================================================ */
.breadcrumb {
  margin-bottom: var(--pico-spacing);
  font-size: 0.9rem;
}
.breadcrumb a {
  color: var(--pico-muted-color);
  text-decoration: none;
}
.breadcrumb a:hover {
  color: var(--pico-primary);
  transition: color 0.15s;
}

/* ============================================================
   Detail layout — content + sidebar two-column grid
   ============================================================ */
.detail-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 992px) {
  .detail-layout {
    grid-template-columns: 5fr 2fr;
    align-items: start;
  }
}

/* Sidebar — stacked cards */
.detail-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--pico-spacing);
}
.detail-sidebar > article {
  padding: var(--pico-spacing);
  margin: 0;
  border: 1px solid var(--pico-muted-border-color);
  background: var(--pico-card-background-color);
  box-shadow: none;
}
.detail-sidebar > article h3 {
  font-size: 0.7rem;
  font-weight: 700;
  margin-bottom: calc(var(--pico-spacing) * 0.75);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--pico-muted-color);
}
.detail-sidebar > article form {
  margin-bottom: 0;
}
.detail-sidebar > article select {
  margin-bottom: calc(var(--pico-spacing) * 0.5);
}

/* ============================================================
   Badges
   ============================================================ */
.type-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2em 0.6em;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.4;
  white-space: nowrap;
  color: #fff;
}

.visibility-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  padding: 0.2em 0.55em;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
}
.visibility-badge[data-visibility="private"] {
  color: var(--pico-muted-color);
  background: color-mix(in srgb, var(--pico-muted-color) 12%, transparent);
}
.visibility-badge[data-visibility="unlisted"] {
  color: var(--app-info);
  background: var(--app-info-bg);
}
.visibility-badge[data-visibility="public"] {
  color: var(--app-success);
  background: var(--app-success-bg);
}

.validation-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25em;
  padding: 0.2em 0.55em;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
  color: var(--app-success);
  background: var(--app-success-bg);
}
.validation-badge a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 0.15em;
}
.validation-badge::before {
  content: "\2713";
  font-weight: 700;
}

.post-provenance {
  display: flex;
  align-items: center;
  gap: calc(var(--pico-spacing) * 0.6);
  flex-wrap: wrap;
  margin-top: calc(var(--pico-spacing) * 0.5);
  font-size: 0.8rem;
  color: var(--pico-muted-color);
}
.ai-source {
  font-size: 0.8rem;
  color: var(--pico-muted-color);
  font-style: italic;
}

.signal-tags {
  display: flex;
  align-items: center;
  gap: 0.4em;
  flex-wrap: wrap;
  margin-top: 0.5em;
}
.signal-tag {
  display: inline-block;
  padding: 0.15em 0.5em;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--pico-muted-color);
  background: var(--pico-muted-border-color);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.6;
}
.signal-tag:hover {
  color: var(--pico-primary);
  background: var(--pico-primary-focus);
}
.signal-tags-footer {
  margin-top: calc(var(--pico-spacing) * 1.5);
  padding-top: calc(var(--pico-spacing) * 0.75);
  border-top: 1px solid var(--pico-muted-border-color);
}
.active-filter {
  display: flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.4em 0.75em;
  margin-bottom: 0.75em;
  border-radius: 6px;
  background: var(--pico-primary-focus);
  font-size: 0.85rem;
}
.clear-filter {
  margin-left: auto;
  font-size: 0.8rem;
}

/* ============================================================
   Stat cards (dashboard)
   ============================================================ */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--pico-grid-column-gap);
  margin-bottom: var(--pico-spacing);
}
.stat-card {
  text-align: center;
  padding: var(--pico-block-spacing-horizontal);
  margin: 0;
  background: var(--pico-card-background-color);
  border-radius: var(--pico-border-radius);
  border: 1px solid var(--pico-muted-border-color);
  transition: box-shadow 0.2s, transform 0.2s;
}
.stat-card:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transform: translateY(-1px);
}
.stat-card .stat-value {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--pico-color);
  letter-spacing: -0.02em;
}
.stat-card .stat-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--pico-muted-color);
  margin-top: calc(var(--pico-spacing) * 0.35);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ============================================================
   Post / Card metadata row
   ============================================================ */
.post-meta {
  display: flex;
  align-items: center;
  gap: calc(var(--pico-spacing) * 0.6);
  flex-wrap: wrap;
  color: var(--pico-muted-color);
  font-size: 0.85rem;
  margin-bottom: 0;
}
.post-meta > *:not(:last-child)::after {
  content: "\00b7";
  margin-left: calc(var(--pico-spacing) * 0.6);
  color: var(--pico-muted-color);
  opacity: 0.4;
}

/* ============================================================
   Signal cards (list items)
   ============================================================ */
.signal-card {
  padding: calc(var(--pico-spacing) * 1.25) 0;
  margin-bottom: 0;
  border-bottom: 1px solid var(--pico-muted-border-color);
  /* Reset Pico article card styles */
  background: none;
  box-shadow: none;
  border-radius: 0;
}
.signal-card:last-of-type {
  border-bottom: none;
}
.signal-card h3 {
  margin: 0 0 calc(var(--pico-spacing) * 0.4) 0;
  font-size: 1.05rem;
  line-height: 1.4;
}
.signal-card h3 a {
  text-decoration: none;
  color: var(--pico-color);
  transition: color 0.15s;
}
.signal-card h3 a:hover {
  color: var(--pico-primary);
}
.signal-card .card-meta {
  font-size: 0.8rem;
  color: var(--pico-muted-color);
  display: flex;
  gap: calc(var(--pico-spacing) * 0.4);
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: calc(var(--pico-spacing) * 0.6);
}
.signal-card .card-preview {
  font-size: 0.88rem;
  color: var(--pico-muted-color);
  line-height: 1.5;
  margin: calc(var(--pico-spacing) * 0.25) 0 0;
}

/* ============================================================
   Flash messages
   ============================================================ */
.flash {
  padding: calc(var(--pico-spacing) * 0.75) var(--pico-spacing);
  border-radius: var(--pico-border-radius);
  margin-bottom: var(--pico-spacing);
  font-size: 0.9rem;
  font-weight: 500;
  transition: opacity 0.3s ease;
}
.flash-success {
  background: var(--app-success-bg);
  color: var(--app-success);
  border: 1px solid var(--app-success-border);
}
.flash-error {
  background: var(--app-error-bg);
  color: var(--app-error);
  border: 1px solid var(--app-error-border);
}

/* ============================================================
   Toast notifications (HTMX-triggered)
   ============================================================ */
.toast-container {
  position: fixed;
  top: var(--pico-spacing);
  right: var(--pico-spacing);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: calc(var(--pico-spacing) * 0.5);
  pointer-events: none;
  max-width: min(400px, calc(100vw - calc(var(--pico-spacing) * 2)));
}
.toast {
  padding: calc(var(--pico-spacing) * 0.75) var(--pico-spacing);
  border-radius: var(--pico-border-radius);
  font-size: 0.9rem;
  font-weight: 500;
  pointer-events: auto;
  opacity: 0;
  transform: translateX(100%);
  animation: toast-in 0.3s ease forwards;
}
.toast-success {
  background: var(--app-toast-success-bg);
  color: var(--app-success);
  border: 1px solid var(--app-success-border);
}
.toast-error {
  background: var(--app-toast-error-bg);
  color: var(--app-error);
  border: 1px solid var(--app-error-border);
}
.toast-removing {
  animation: toast-out 0.25s ease forwards;
}
@keyframes toast-in {
  to { opacity: 1; transform: translateX(0); }
}
@keyframes toast-out {
  to { opacity: 0; transform: translateX(100%); }
}

/* ============================================================
   Rendered markdown content
   ============================================================ */
.content {
  margin: var(--pico-spacing) 0;
}
.content h2 { margin-top: calc(var(--pico-spacing) * 2); }
.content h3 { margin-top: calc(var(--pico-spacing) * 1.5); }
.content pre { overflow-x: auto; max-width: 100%; }
.content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--pico-border-radius);
}
.content table { width: 100%; display: block; overflow-x: auto; }
.content blockquote {
  border-left: 3px solid var(--pico-primary);
  padding-left: var(--pico-spacing);
  color: var(--pico-muted-color);
}

/* ============================================================
   Action row (inline buttons)
   ============================================================ */
.action-row {
  display: flex;
  gap: calc(var(--pico-spacing) * 0.5);
  flex-wrap: wrap;
  align-items: center;
}
.action-row form { margin: 0; }
.action-row button {
  width: auto;
  margin-bottom: 0;
  padding: calc(var(--pico-spacing) * 0.4) calc(var(--pico-spacing) * 0.8);
  font-size: 0.85rem;
}

/* ============================================================
   Small buttons (table rows, sidebar panels)
   ============================================================ */
.btn-sm {
  width: auto;
  padding: calc(var(--pico-spacing) * 0.25) calc(var(--pico-spacing) * 0.6);
  font-size: 0.8rem;
  margin: 0;
}
table td form { margin: 0; }

/* ============================================================
   Table refinements
   ============================================================ */
table th {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--pico-muted-color);
  font-weight: 600;
  padding: calc(var(--pico-spacing) * 0.6) calc(var(--pico-spacing) * 0.75);
}
table td {
  vertical-align: middle;
  padding: calc(var(--pico-spacing) * 0.6) calc(var(--pico-spacing) * 0.75);
}
table tbody tr {
  transition: background 0.15s;
}
table tbody tr:hover {
  background: color-mix(in srgb, var(--pico-primary) 4%, transparent);
}

/* Table inside article card — figure flush + horizontal scroll */
article > figure {
  margin: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ============================================================
   Admin responsive — nav, grids, buttons
   ============================================================ */

/* Admin nav: wrap on medium screens */
@media (max-width: 768px) {
  nav[aria-label="Main navigation"] {
    flex-direction: column;
    gap: 0;
  }
  nav[aria-label="Main navigation"] ul {
    justify-content: center;
    flex-wrap: wrap;
    gap: 0;
  }
  nav[aria-label="Main navigation"] ul li {
    font-size: 0.9rem;
  }
  /* Stack form grids to single column */
  article .grid,
  form .grid {
    grid-template-columns: 1fr !important;
  }
  /* Button groups wrap */
  .btn-group {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  /* Tighter container padding */
  main.container {
    padding-left: calc(var(--pico-spacing) * 0.75);
    padding-right: calc(var(--pico-spacing) * 0.75);
  }
  /* Full-width buttons on very small screens */
  article button.btn-sm,
  article .btn-sm {
    width: 100%;
  }
}

/* ============================================================
   HTMX loading indicator
   ============================================================ */
.htmx-indicator { display: none; }
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator { display: inline-block; }

/* ============================================================
   Login page
   ============================================================ */
.login-container {
  max-width: 380px;
  margin: 0 auto;
  min-height: calc(100vh - 8rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.login-container article {
  padding: calc(var(--pico-spacing) * 2);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  border: 1px solid var(--pico-muted-border-color);
}
.login-container h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: calc(var(--pico-spacing) * 0.25);
}
.login-container header p {
  color: var(--pico-muted-color);
  margin-bottom: 0;
}
.login-container input {
  margin-bottom: calc(var(--pico-spacing) * 0.75);
}

/* ============================================================
   Article header spacing
   ============================================================ */
article header {
  margin-bottom: var(--pico-spacing);
}

/* ============================================================
   Pagination
   ============================================================ */
/* Override Pico's nav { display:flex; justify-content:space-between } */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.25rem;
  margin-top: calc(var(--pico-block-spacing-vertical) * 2);
  flex-wrap: wrap;
  overflow: hidden;
}
.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.2rem;
  height: 2.2rem;
  padding: 0 calc(var(--pico-spacing) * 0.5);
  margin: 0;
  border-radius: var(--pico-border-radius);
  font-size: 0.85rem;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.pagination .ellipsis {
  min-width: auto;
  color: var(--pico-muted-color);
}
.pagination a:hover {
  background: var(--pico-primary-hover-background);
  color: var(--pico-primary-inverse);
}
.pagination .current {
  background: var(--pico-primary-background);
  color: var(--pico-primary-inverse);
  font-weight: 600;
}

/* ============================================================
   Filter bar (signals list)
   ============================================================ */
.filter-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--pico-grid-column-gap);
  align-items: end;
  margin-bottom: calc(var(--pico-spacing) * 1.25);
  padding-bottom: calc(var(--pico-spacing) * 0.75);
  border-bottom: 1px solid var(--pico-muted-border-color);
}
.filter-bar label,
.filter-bar select,
.filter-bar input[type="search"] {
  margin-bottom: 0;
}
.filter-bar label:has(input[type="checkbox"]) {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--pico-spacing) * 0.4);
  cursor: pointer;
}
.filter-bar label:has(input[type="checkbox"]) input[type="checkbox"] {
  margin: 0;
}

/* ============================================================
   Settings groups (collapsible categories)
   ============================================================ */
.settings-group {
  border: 1px solid var(--pico-muted-border-color);
  border-radius: var(--pico-border-radius);
  margin-bottom: var(--pico-spacing);
  padding: 0;
  background: var(--pico-card-background-color);
}
.settings-group > summary {
  list-style: none;
  cursor: pointer;
  padding: var(--pico-spacing) calc(var(--pico-spacing) * 1.25);
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: calc(var(--pico-spacing) * 0.5);
  user-select: none;
  border-radius: var(--pico-border-radius);
  transition: background-color 0.15s ease;
}
.settings-group > summary:hover {
  background: var(--pico-form-element-background-color);
}
.settings-group > summary::-webkit-details-marker {
  display: none;
}
.settings-group > summary::before {
  content: '\203A'; /* › */
  display: inline-block;
  font-size: 1.2em;
  font-weight: 400;
  width: 1em;
  text-align: center;
  transition: transform 0.2s ease;
  color: var(--pico-muted-color);
  flex-shrink: 0;
}
.settings-group[open] > summary::before {
  transform: rotate(90deg);
}
.settings-group > summary small {
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--pico-muted-color);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.settings-group[open] > summary {
  border-bottom: 1px solid var(--pico-muted-border-color);
  border-radius: var(--pico-border-radius) var(--pico-border-radius) 0 0;
}
.settings-group .setting-field,
.settings-group .reset-defaults-btn {
  padding-left: calc(var(--pico-spacing) * 1.25);
  padding-right: calc(var(--pico-spacing) * 1.25);
}
.settings-group .setting-field:first-of-type {
  padding-top: var(--pico-spacing);
}
.settings-group .reset-defaults-btn {
  margin: var(--pico-spacing) 0 var(--pico-spacing) calc(var(--pico-spacing) * 1.25);
  font-size: 0.8rem;
}

/* ============================================================
   Settings fields
   ============================================================ */
.setting-field label {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: calc(var(--pico-spacing) * 0.15);
}
.setting-field small {
  display: block;
  font-size: 0.8rem;
  margin-bottom: calc(var(--pico-spacing) * 0.5);
  line-height: 1.4;
}
.setting-field select {
  margin-bottom: 0;
}
.setting-field input[type="color"] {
  width: 3rem;
  min-width: 3rem;
  padding: 0.25rem;
  border: 1px solid var(--pico-form-element-border-color);
  border-radius: var(--pico-border-radius);
  cursor: pointer;
  background: var(--pico-form-element-background-color);
}
.setting-field + .setting-field {
  margin-top: var(--pico-spacing);
  padding-top: var(--pico-spacing);
  border-top: 1px solid var(--pico-muted-border-color);
}

/* ============================================================
   Shared post notice (unlisted indicator)
   ============================================================ */
.shared-notice {
  display: flex;
  align-items: center;
  gap: calc(var(--pico-spacing) * 0.5);
  font-size: 0.85rem;
  color: var(--pico-muted-color);
  padding: calc(var(--pico-spacing) * 0.5) var(--pico-spacing);
  background: var(--app-info-bg);
  border: 1px solid var(--app-info-border);
  border-radius: var(--pico-border-radius);
  margin-bottom: var(--pico-spacing);
}

/* ============================================================
   Share link / source URL display
   ============================================================ */
.share-info {
  margin-top: calc(var(--pico-spacing) * 0.75);
  font-size: 0.9rem;
}
.share-info code {
  font-size: 0.85em;
  word-break: break-all;
}

/* ============================================================
   Empty state
   ============================================================ */
.empty-state {
  text-align: center;
  color: var(--pico-muted-color);
  padding: calc(var(--pico-spacing) * 2) var(--pico-spacing);
}

/* ============================================================
   Result count
   ============================================================ */
.result-count {
  font-size: 0.85rem;
  color: var(--pico-muted-color);
  margin-bottom: calc(var(--pico-spacing) * 0.75);
}

/* ============================================================
   Page header (source feed)
   ============================================================ */
.page-header {
  margin-bottom: calc(var(--pico-spacing) * 2);
  padding-bottom: calc(var(--pico-spacing) * 1.25);
  border-bottom: 1px solid var(--pico-muted-border-color);
}
.page-header h1 {
  overflow-wrap: break-word;
  word-break: break-word;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: calc(var(--pico-spacing) * 0.35);
}
.page-header p {
  color: var(--pico-muted-color);
  margin-bottom: 0;
  font-size: 0.95rem;
  line-height: 1.5;
}

/* ============================================================
   Muted text utility
   ============================================================ */
.muted {
  color: var(--pico-muted-color);
}

/* ============================================================
   Reading progress bar (top of page, source post/shared)
   ============================================================ */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--pico-primary);
  transform-origin: left;
  transform: scaleX(0);
  z-index: 9999;
  transition: transform 0.1s linear;
  pointer-events: none;
}

/* ============================================================
   Back to top button
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--pico-card-background-color);
  color: var(--pico-muted-color);
  border: 1px solid var(--pico-muted-border-color);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s, visibility 0.25s, transform 0.25s, background 0.15s, color 0.15s;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  padding: 0;
  margin: 0;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--pico-primary);
  color: var(--pico-primary-inverse);
  border-color: var(--pico-primary);
}

/* ============================================================
   Source page — base wrapper (all variants)
   ============================================================ */
.source-page {
  max-width: 1280px;
  margin: 0 auto;
  padding: calc(var(--pico-spacing) * 1.5) var(--pico-spacing) calc(var(--pico-spacing) * 3);
  box-sizing: border-box;
  width: 100%;
}

/* Feed: 2-col — sidebar + content */
.source-page--feed {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.5rem;
  align-items: start;
}

/* Post: 3-col — sidebar + content + TOC */
.source-page--post {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 200px;
  gap: 2.5rem;
  align-items: start;
}

/* Shared: 2-col — content + TOC */
.source-page--shared {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 200px;
  gap: 2.5rem;
  align-items: start;
}

/* ============================================================
   Source left sidebar — sticky category nav
   ============================================================ */
.source-nav {
  display: block;
  justify-content: initial;
  overflow: hidden;
  position: sticky;
  top: calc(var(--pico-spacing) * 2);
  max-height: calc(100vh - calc(var(--pico-spacing) * 4));
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 1.25rem;
  border-right: 1px solid var(--pico-muted-border-color);
}
.source-nav .nav-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--pico-muted-color);
  margin-bottom: calc(var(--pico-spacing) * 0.75);
  padding-left: calc(var(--pico-spacing) * 0.5);
}
.source-nav ul {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 1px;
}
.source-nav li {
  display: block;
  margin: 0;
  padding: 0;
  width: 100%;
}
.source-nav li::before {
  content: none;
}
.source-nav a {
  display: flex;
  align-items: center;
  gap: calc(var(--pico-spacing) * 0.5);
  margin: 0;
  padding: calc(var(--pico-spacing) * 0.4) calc(var(--pico-spacing) * 0.6);
  font-size: 0.85rem;
  color: var(--pico-muted-color);
  text-decoration: none;
  border-radius: var(--pico-border-radius);
  transition: background 0.15s, color 0.15s;
  line-height: 1.4;
}
.source-nav a:hover {
  background: color-mix(in srgb, var(--pico-primary) 8%, transparent);
  color: var(--pico-color);
}
.source-nav a.active {
  background: color-mix(in srgb, var(--pico-primary) 12%, transparent);
  color: var(--pico-primary);
  font-weight: 600;
}
.source-nav .type-icon {
  font-size: 1rem;
  width: 1.2em;
  text-align: center;
  flex-shrink: 0;
}
.source-nav .nav-top {
  margin-bottom: calc(var(--pico-spacing) * 0.5);
  padding-bottom: calc(var(--pico-spacing) * 0.5);
  border-bottom: 1px solid var(--pico-muted-border-color);
}
.source-nav .nav-section {
  margin-bottom: calc(var(--pico-spacing) * 0.25);
}
.source-nav .nav-section > summary {
  cursor: pointer;
  user-select: none;
  list-style: none;
}
.source-nav .nav-section > summary::-webkit-details-marker {
  display: none;
}
.source-nav .nav-section > summary::after {
  content: "\25B8";
  float: right;
  font-size: 0.65rem;
  line-height: 1.6;
  color: var(--pico-muted-color);
  transition: transform 0.15s ease;
}
.source-nav .nav-section[open] > summary::after {
  transform: rotate(90deg);
}
.source-nav .nav-section > ul {
  margin-top: calc(var(--pico-spacing) * 0.25);
}

/* ============================================================
   Source main content area
   ============================================================ */
.source-main {
  min-width: 0;
  max-width: 100%;
  overflow-wrap: break-word;
  word-break: break-word;
}

/* ============================================================
   Source TOC sidebar — sticky "On this page"
   ============================================================ */
.source-toc {
  position: sticky;
  top: calc(var(--pico-spacing) * 2);
  max-height: calc(100vh - calc(var(--pico-spacing) * 4));
  overflow-y: auto;
  overflow-x: hidden;
  min-width: 0;
  padding-left: 1rem;
}
.source-toc .toc-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--pico-muted-color);
  margin-bottom: calc(var(--pico-spacing) * 0.75);
}
.source-toc nav {
  display: block;
}
.source-toc ul {
  display: block;
  list-style: none;
  padding: 0;
  margin: 0;
  border-left: 2px solid var(--pico-muted-border-color);
}
.source-toc li {
  display: block;
  margin: 0;
  padding: 0;
}
.source-toc li::before {
  content: none;
}
.source-toc a {
  display: block;
  padding: calc(var(--pico-spacing) * 0.25) 0;
  padding-left: calc(var(--pico-spacing) * 0.75);
  margin: 0;
  font-size: 0.8rem;
  color: var(--pico-muted-color);
  text-decoration: none;
  transition: color 0.2s, border-color 0.2s;
  line-height: 1.5;
  overflow-wrap: break-word;
  word-break: break-word;
  white-space: normal;
}
.source-toc a:hover {
  color: var(--pico-color);
}
.source-toc a.active {
  color: var(--pico-primary);
  font-weight: 600;
  border-left: 2px solid var(--pico-primary);
  margin-left: -2px;
}
.source-toc li.toc-h3 a {
  padding-left: calc(var(--pico-spacing) * 1.5);
  font-size: 0.75rem;
}

/* ============================================================
   Source breadcrumb navigation
   ============================================================ */
.source-breadcrumb {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: start;
  gap: 0.4em;
  font-size: 0.85rem;
  color: var(--pico-muted-color);
  margin: 0;
  padding: 0;
  overflow: visible;
}
.source-breadcrumb a {
  display: inline;
  margin: 0;
  padding: 0;
  color: var(--pico-muted-color);
  text-decoration: none;
  overflow-wrap: break-word;
  word-break: break-word;
}
.source-breadcrumb a:hover {
  color: var(--pico-primary);
}
.source-breadcrumb span {
  color: var(--pico-muted-color);
  opacity: 0.4;
  user-select: none;
}

/* ============================================================
   Source action bar — breadcrumb + dropdown
   ============================================================ */
.source-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: calc(var(--pico-spacing) * 1.25);
  padding-bottom: calc(var(--pico-spacing) * 0.75);
  border-bottom: 1px solid var(--pico-muted-border-color);
  position: relative;
}
.source-actions details.dropdown {
  margin-bottom: 0;
  display: inline-block;
  position: relative;
}
.source-actions details.dropdown > summary {
  --pico-form-element-spacing-vertical: 0;
  --pico-form-element-spacing-horizontal: 0;
  padding: 0.3rem 0.65rem;
  font-size: 0.8rem;
  line-height: 1.4;
  border: 1px solid var(--pico-muted-border-color);
  background: transparent;
  color: var(--pico-muted-color);
  margin-bottom: 0;
  height: auto;
  width: auto;
  border-radius: var(--pico-border-radius);
}
.source-actions details.dropdown > summary:hover {
  color: var(--pico-color);
  border-color: var(--pico-color);
}
.source-actions details.dropdown > summary::after {
  margin-left: 0.3rem;
}
.source-actions details.dropdown ul {
  min-width: 180px;
  right: 0;
  left: auto;
  direction: ltr;
  text-align: left;
}
.source-actions details.dropdown ul li a,
.source-actions details.dropdown ul li button {
  font-size: 0.85rem;
  cursor: pointer;
  direction: ltr;
  text-align: left;
}

/* ============================================================
   Source article — post content area
   ============================================================ */
.source-article {
  min-width: 0;
  max-width: 100%;
  padding: 0;
  background: none;
  box-shadow: none;
  border-radius: 0;
}
.source-article > header {
  margin-left: 0;
  margin-right: 0;
  padding: 0;
  background: none;
  border: none;
  border-radius: 0;
  margin-bottom: calc(var(--pico-spacing) * 1.5);
}
.source-article .source-category {
  margin-bottom: calc(var(--pico-spacing) * 0.75);
}
.source-article header h1 {
  margin-bottom: calc(var(--pico-spacing) * 0.75);
  font-size: 2rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
  overflow-wrap: break-word;
  word-break: break-word;
}
/* Divider between header and content */
.source-article .content {
  padding-top: calc(var(--pico-spacing) * 1.5);
  border-top: 1px solid var(--pico-muted-border-color);
}
/* Enhanced prose typography */
.source-article .content p {
  line-height: 1.75;
  margin-bottom: calc(var(--pico-spacing) * 1.25);
}
.source-article .content h2 {
  margin-top: calc(var(--pico-spacing) * 2.5);
  margin-bottom: calc(var(--pico-spacing) * 0.75);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.source-article .content h3 {
  margin-top: calc(var(--pico-spacing) * 2);
  margin-bottom: calc(var(--pico-spacing) * 0.5);
  font-size: 1.2rem;
  font-weight: 600;
}
.source-article .content ul,
.source-article .content ol {
  margin-bottom: calc(var(--pico-spacing) * 1.25);
}
.source-article .content li {
  margin-bottom: calc(var(--pico-spacing) * 0.35);
  line-height: 1.7;
}
.source-article .content blockquote {
  border-left: 3px solid var(--pico-primary);
  padding: calc(var(--pico-spacing) * 0.75) calc(var(--pico-spacing) * 1.25);
  margin: calc(var(--pico-spacing) * 1.5) 0;
  background: color-mix(in srgb, var(--pico-primary) 4%, transparent);
  border-radius: 0 var(--pico-border-radius) var(--pico-border-radius) 0;
  font-style: italic;
}
.source-article .content blockquote p:last-child {
  margin-bottom: 0;
}
/* Enhanced code blocks */
.source-article .content pre {
  border-radius: calc(var(--pico-border-radius) * 1.5);
  padding: calc(var(--pico-spacing) * 1.25);
  margin: calc(var(--pico-spacing) * 1.5) 0;
  font-size: 0.875rem;
  line-height: 1.7;
  overflow-x: auto;
  max-width: 100%;
  border: 1px solid var(--pico-muted-border-color);
}
.source-article .content code:not(pre code) {
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.88em;
  background: color-mix(in srgb, var(--pico-muted-color) 10%, transparent);
}
/* Enhanced images */
.source-article .content img {
  max-width: 100%;
  height: auto;
  border-radius: calc(var(--pico-border-radius) * 1.5);
  margin: calc(var(--pico-spacing) * 1.5) 0;
  border: 1px solid var(--pico-muted-border-color);
}
/* Enhanced tables */
.source-article .content table {
  margin: calc(var(--pico-spacing) * 1.5) 0;
  font-size: 0.9rem;
}
/* Horizontal rules in content */
.source-article .content hr {
  margin: calc(var(--pico-spacing) * 2) 0;
  border-color: var(--pico-muted-border-color);
}

/* ============================================================
   Source cards (public feed)
   ============================================================ */
.source-card {
  margin-bottom: 0;
  padding: calc(var(--pico-spacing) * 1.25) 0;
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
  border-bottom: 1px solid var(--pico-muted-border-color);
  /* Reset Pico article card styles */
  background: none;
  box-shadow: none;
  border-radius: 0;
}
.source-card:last-of-type {
  border-bottom: none;
}
.source-card-header {
  display: flex;
  align-items: center;
  gap: calc(var(--pico-spacing) * 0.5);
  margin-bottom: calc(var(--pico-spacing) * 0.5);
  font-size: 0.8rem;
  color: var(--pico-muted-color);
}
.source-card h2 {
  margin-bottom: calc(var(--pico-spacing) * 0.4);
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.35;
  overflow-wrap: break-word;
  word-break: break-word;
}
.source-card h2 a {
  text-decoration: none;
  color: var(--pico-color);
  transition: color 0.15s;
}
.source-card h2 a:hover {
  color: var(--pico-primary);
}
.source-card-preview {
  color: var(--pico-muted-color);
  font-size: 0.9rem;
  line-height: 1.65;
  margin: 0 0 calc(var(--pico-spacing) * 0.75) 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.source-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--pico-muted-color);
}
.source-card-footer a {
  text-decoration: none;
  font-weight: 600;
  color: var(--pico-primary);
  transition: opacity 0.15s;
}
.source-card-footer a:hover {
  opacity: 0.8;
}

/* ============================================================
   Type chips (mobile horizontal filter)
   ============================================================ */
.type-chips {
  display: flex;
  gap: calc(var(--pico-spacing) * 0.4);
  overflow-x: auto;
  padding-bottom: calc(var(--pico-spacing) * 0.5);
  margin-bottom: calc(var(--pico-spacing) * 1.25);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.type-chips::-webkit-scrollbar {
  display: none;
}
.type-chips a {
  white-space: nowrap;
  padding: calc(var(--pico-spacing) * 0.3) calc(var(--pico-spacing) * 0.75);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--pico-muted-border-color);
  color: var(--pico-muted-color);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.type-chips a:hover {
  border-color: var(--pico-primary);
  color: var(--pico-primary);
}
.type-chips a.active {
  background: var(--pico-primary-background);
  color: var(--pico-primary-inverse);
  border-color: var(--pico-primary-background);
}

/* ============================================================
   Responsive breakpoints — Source layouts
   ============================================================ */

/* Medium screens (769–1200px): hide TOC, keep sidebar (narrower) */
@media (max-width: 1200px) {
  .source-page--feed {
    grid-template-columns: 180px 1fr;
    gap: 2rem;
  }
  .source-page--post {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 2rem;
  }
  .source-page--post > .source-toc {
    display: none;
  }
  .source-page--shared {
    grid-template-columns: 1fr;
  }
  .source-page--shared > .source-toc {
    display: none;
  }
}

/* Small screens (<=768px): single column, no sidebar, show chips */
@media (max-width: 768px) {
  .source-page {
    padding: calc(var(--pico-spacing) * 1) calc(var(--pico-spacing) * 1);
  }
  .source-page--feed,
  .source-page--post,
  .source-page--shared {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .source-nav {
    display: none;
  }
  .source-page--post > .source-toc,
  .source-page--shared > .source-toc {
    display: none;
  }

  /* Action bar mobile */
  .source-actions {
    flex-wrap: wrap;
    gap: 0.5rem;
    padding-bottom: calc(var(--pico-spacing) * 0.5);
    margin-bottom: calc(var(--pico-spacing) * 1);
  }
  .source-actions details.dropdown ul {
    min-width: 0;
    width: max-content;
    max-width: calc(100vw - 2rem);
  }

  /* Article header mobile */
  .source-article > header {
    margin-bottom: calc(var(--pico-spacing) * 1);
  }
  .source-article header h1 {
    font-size: 1.5rem;
    letter-spacing: -0.01em;
  }

  /* Post meta mobile */
  .post-meta {
    font-size: 0.8rem;
    gap: calc(var(--pico-spacing) * 0.4);
  }

  /* Content mobile */
  .source-article .content {
    padding-top: calc(var(--pico-spacing) * 1);
  }
  .source-article .content p {
    line-height: 1.7;
    font-size: 0.95rem;
  }
  .source-article .content h2 {
    font-size: 1.3rem;
    margin-top: calc(var(--pico-spacing) * 2);
  }
  .source-article .content h3 {
    font-size: 1.1rem;
    margin-top: calc(var(--pico-spacing) * 1.5);
  }
  .source-article .content pre {
    font-size: 0.8rem;
    padding: calc(var(--pico-spacing) * 0.75);
    border-radius: var(--pico-border-radius);
    margin: var(--pico-spacing) 0;
  }
  .source-article .content blockquote {
    margin: var(--pico-spacing) 0;
    padding: calc(var(--pico-spacing) * 0.5) calc(var(--pico-spacing) * 0.75);
  }
  .source-article .content img {
    margin: var(--pico-spacing) 0;
    border-radius: var(--pico-border-radius);
  }

  /* Feed cards mobile */
  .source-card {
    padding: calc(var(--pico-spacing) * 1) 0;
  }
  .source-card h2 {
    font-size: 1.05rem;
  }
  .source-card-preview {
    font-size: 0.85rem;
    -webkit-line-clamp: 2;
  }
  .page-header h1 {
    font-size: 1.5rem;
  }
  .page-header p {
    font-size: 0.9rem;
  }

  /* Shared notice mobile */
  .shared-notice {
    font-size: 0.8rem;
    padding: calc(var(--pico-spacing) * 0.4) calc(var(--pico-spacing) * 0.75);
  }

  /* Back to top: smaller on mobile */
  .back-to-top {
    bottom: 1rem;
    right: 1rem;
    width: 2.25rem;
    height: 2.25rem;
    font-size: 1rem;
  }
}

/* Extra small screens (<=480px) */
@media (max-width: 480px) {
  .source-page {
    padding: calc(var(--pico-spacing) * 0.75) calc(var(--pico-spacing) * 0.75);
  }
  .source-actions {
    font-size: 0.8rem;
  }
  .source-breadcrumb {
    font-size: 0.78rem;
  }
  .source-article header h1 {
    font-size: 1.3rem;
  }
  .source-card h2 {
    font-size: 1rem;
  }
}

/* Type chips: visible only on mobile */
@media (min-width: 769px) {
  .type-chips {
    display: none;
  }
}

/* ============================================================
   Print styles — clean output for source posts
   ============================================================ */
@media print {
  .source-nav,
  .source-toc,
  .source-actions,
  .type-chips,
  .back-to-top,
  .reading-progress,
  .theme-toggle,
  .toast-container,
  header.container nav,
  footer.container {
    display: none !important;
  }
  .source-page,
  .source-page--post,
  .source-page--feed,
  .source-page--shared {
    display: block !important;
    max-width: none;
    padding: 0;
  }
  .source-article {
    max-width: 100%;
  }
  .source-article .content {
    border-top: none;
  }
  .source-article .content a::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: #666;
  }
}

/* ============================================================
   Source grid card variant (source_card_style=grid)
   ============================================================ */
.source-page--grid-cards .source-main {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: calc(var(--pico-spacing) * 1.25);
}
.source-page--grid-cards .source-main > .page-header,
.source-page--grid-cards .source-main > .type-chips,
.source-page--grid-cards .source-main > .pagination,
.source-page--grid-cards .source-main > .empty-state {
  grid-column: 1 / -1;
}
.source-page--grid-cards .source-card {
  border-bottom: none;
  border: 1px solid var(--pico-muted-border-color);
  border-radius: var(--pico-border-radius);
  padding: calc(var(--pico-spacing) * 1.25);
  transition: box-shadow 0.2s, transform 0.2s;
}
.source-page--grid-cards .source-card:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transform: translateY(-1px);
}
@media (max-width: 768px) {
  .source-page--grid-cards .source-main {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Code theme variants (data-code-theme attribute)
   ============================================================ */
[data-code-theme="github"] .source-article .content pre,
[data-code-theme="github"] .content pre {
  background: #f6f8fa;
  color: #24292e;
  border-color: #d0d7de;
}
[data-code-theme="github"] .source-article .content code:not(pre code) {
  background: rgba(175, 184, 193, 0.2);
  color: #24292e;
}
[data-code-theme="monokai"] .source-article .content pre,
[data-code-theme="monokai"] .content pre {
  background: #272822;
  color: #f8f8f2;
  border-color: #3e3d32;
}
[data-code-theme="monokai"] .source-article .content code:not(pre code) {
  background: rgba(255, 255, 255, 0.1);
  color: #f8f8f2;
}

/* ============================================================
   Settings save bar (sticky bottom)
   ============================================================ */
.save-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--pico-card-background-color);
  border-top: 1px solid var(--pico-muted-border-color);
  box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.08);
  padding: calc(var(--pico-spacing) * 0.75) var(--pico-spacing);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.save-bar[hidden] {
  display: block !important;
  transform: translateY(100%);
  pointer-events: none;
  opacity: 0;
}
.save-bar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  gap: var(--pico-spacing);
}
.save-bar-text {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--pico-color);
}
.save-bar-text strong {
  color: var(--pico-primary);
}
.save-bar-actions {
  display: flex;
  gap: calc(var(--pico-spacing) * 0.5);
}
.save-bar-actions button {
  width: auto;
  margin-bottom: 0;
  padding: calc(var(--pico-spacing) * 0.4) calc(var(--pico-spacing) * 1);
  font-size: 0.85rem;
}
body:has(.save-bar:not([hidden])) main {
  padding-bottom: 5rem;
}
@media (max-width: 576px) {
  .save-bar-content {
    flex-direction: column;
    gap: calc(var(--pico-spacing) * 0.5);
    text-align: center;
  }
  .save-bar-actions {
    width: 100%;
  }
  .save-bar-actions button {
    flex: 1;
  }
}

/* ============================================================
   Sticky footer — push footer to bottom on short pages
   ============================================================ */
body.site {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* all layouts wrap content in a div */
body.site > div {
  flex: 1;
  display: flex;
  flex-direction: column;
}

body.site > div > main.container {
  flex: 1;
}

/* Nav layout */
header nav ul:last-child {
  gap: 0;
}
header nav ul:last-child li {
  white-space: nowrap;
  display: flex;
  align-items: center;
  min-height: 2rem;
}

.source-avatar-sm {
  border-radius: 50%;
  vertical-align: middle;
}

@media (max-width: 992px) {
  header nav ul:last-child {
    flex-wrap: wrap;
    justify-content: flex-end;
  }
  header nav ul:last-child li {
    font-size: 0.9rem;
  }
}
@media (max-width: 576px) {
  header nav {
    flex-direction: column;
    gap: calc(var(--pico-spacing) * 0.5);
  }
  header nav ul:last-child {
    justify-content: center;
  }
}


/* ============================================================
   Footer
   ============================================================ */
footer.container {
  margin-top: calc(var(--pico-block-spacing-vertical) * 0.5);
  padding: var(--pico-spacing) 0;
  text-align: center;
  color: var(--pico-muted-color);
  border-top: 1px solid var(--pico-muted-border-color);
}