/* ============================================
   3-COMPONENTS.CSS
   
   Consolidated Atomic Components
   - Cards (merged variants)
   - Timeline (unified)
   - Buttons
   - Forms
   - Navigation elements
   - Empty states
   - Pagination
   - Semantic Callouts
   ============================================ */

/* ============================================
   1. UNIVERSAL CARDS
   Consolidates .card, .card-note, .card-info
   ============================================ */

/* Base card with unified hover system */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  /* Synchronized transition for all properties */
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
}

/* Interactive Card Variant - Unified hover state */
.card--hoverable {
  /* Establish positioning context for glow effects */
  position: relative;
  /* Prevent overflow clipping of glow */
  overflow: visible;
}

/* Unified glow effect using pseudo-element for precise control */
.card--hoverable::before {
  content: '';
  position: absolute;
  inset: -1px; /* Extend to cover border */
  border-radius: calc(var(--radius-md) + 1px); /* Match parent + border */
  background: transparent;
  box-shadow: none;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  pointer-events: none;
  z-index: -1;
}

.card--hoverable:hover,
.card--hoverable:focus-visible {
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

.card--hoverable:hover::before,
.card--hoverable:focus-visible::before {
  opacity: 1;
  /* Glow effect that properly extends to all edges */
  box-shadow:
    0 0 0 1px var(--color-primary),
    0 20px 40px -8px rgba(var(--shadow-color), var(--alpha-15)),
    0 8px 16px -4px rgba(var(--shadow-color), var(--alpha-10));
}

.card--hoverable:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

/* Card with image - synchronized container + image hover */
.card--media {
  /* Ensure consistent border-radius containment */
  border-radius: var(--radius-md);
  overflow: hidden;
  /* Single transition timing for entire card */
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.card--media .card__image {
  overflow: hidden;
  border-radius: 0;
  margin: calc(-1 * var(--space-md));
  margin-bottom: var(--space-md);
}

.card--media .card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Image inherits card's transition timing */
  transition: transform var(--duration-normal) var(--ease-out);
  will-change: transform;
}

/* Synchronized hover: container and image animate together */
.card--media:hover,
.card--media:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card--media:hover .card__image img,
.card--media:focus-within .card__image img {
  transform: scale(1.05);
}

/* Larger scale variant */
.card--media-lg:hover .card__image img,
.card--media-lg:focus-within .card__image img {
  transform: scale(1.08);
}

/* Card link hover - teal to black gradient */
.card a:not(.btn):not(.no-hover):hover,
.card a:not(.btn):not(.no-hover):focus {
  background-image: linear-gradient(
    to right,
    var(--color-link-gradient-start) 0%,
    var(--color-link-gradient-end) 100%
  );
  background-size: 100% 2px;
}

/* Semantic Variants */
.card--note, 
/* Content Card (used by shortcode) */
.content-card {
  background: var(--color-bg-secondary);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) 0;
}

.card--info,
.content-card.card-info {
  background: var(--color-bg-secondary);
  border-left: 4px solid var(--color-info);
  padding: var(--space-md) var(--space-lg);
}

.card--warning,
.content-card.card-warning {
  background: var(--color-bg-secondary);
  border-left: 4px solid var(--color-warning);
  padding: var(--space-md) var(--space-lg);
}

.card--tip,
.card--success,
.content-card.card-tip,
.content-card.card-success {
  background: var(--color-bg-secondary);
  border-left: 4px solid var(--color-success);
  padding: var(--space-md) var(--space-lg);
}

.card--danger,
.card--important,
.content-card.card-danger {
  background: var(--color-bg-secondary);
  border-left: 4px solid var(--color-error);
  padding: var(--space-md) var(--space-lg);
}

/* Card note variant */
.content-card.card-note {
  background: var(--color-bg-secondary);
  border-left: 4px solid var(--color-info);
  padding: var(--space-md) var(--space-lg);
}

/* Card Header for complex cards */
.card__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  font-weight: 600;
}

.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.card__content > *:first-child {
  margin-top: 0;
}

.card__content > *:last-child {
  margin-bottom: 0;
}

/* ============================================
   2. SEMANTIC CALLOUTS
   Unified system for notes, warnings, tips
   Data Object style for Cyber-Academic aesthetic
   ============================================ */

/* Base Callout Style */
.callout {
  position: relative;
  padding: var(--space-lg) var(--space-xl);
  margin: var(--space-xxl) 0;
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
  border-left: 4px solid var(--color-primary);
  box-shadow: 0 2px 8px rgba(var(--shadow-color), var(--alpha-10));
  font-size: var(--text-lg);
  line-height: 1.7;
}

/* Archival Box / Data Object Style */
.callout--archival,
.archival-box,
.callout[data-type="archival"],
.callout.archival {
  background: rgba(var(--shadow-color-light), var(--alpha-5));
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  padding: var(--space-lg);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* Dark mode enhancement for archival boxes */
[data-theme="dark"] .callout--archival,
[data-theme="dark"] .archival-box,
.dark-mode .callout--archival,
.dark-mode .archival-box {
  background: rgba(var(--shadow-color-light), var(--alpha-5));
  border-color: var(--color-border-light);
  box-shadow:
    0 2px 4px rgba(var(--shadow-color), var(--alpha-20)),
    inset 0 1px 0 rgba(var(--shadow-color-light), var(--alpha-5));
}

/* Archival box header */
.archival-box__header,
.callout--archival .callout__title {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
}

/* Archival box content */
.archival-box__content,
.callout--archival .callout__content {
  font-size: var(--text-base);
  line-height: 1.7;
}

.archival-box__content > *:first-child,
.callout--archival .callout__content > *:first-child {
  margin-top: 0;
}

.archival-box__content > *:last-child,
.callout--archival .callout__content > *:last-child {
  margin-bottom: 0;
}

.callout__title {
  font-weight: 700;
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.callout__content > *:first-child {
  margin-top: 0;
}

.callout__content > *:last-child {
  margin-bottom: 0;
}

/* Semantic Variants */
.callout--info {
  border-left-color: var(--color-info);
  background: linear-gradient(to right, var(--color-info-bg), transparent);
}

.callout--warning {
  border-left-color: var(--color-warning);
  background: linear-gradient(to right, var(--color-warning-bg), transparent);
}

.callout--success {
  border-left-color: var(--color-success);
  background: linear-gradient(to right, var(--color-success-bg), transparent);
}

.callout--error {
  border-left-color: var(--color-error);
  background: linear-gradient(to right, var(--color-error-bg), transparent);
}

/* Key Takeaways Variant */
.callout--takeaway {
  border: 1px solid var(--color-primary);
  border-left-width: 8px;
  background: var(--color-bg);
  box-shadow: var(--shadow-sm);
}

/* Message Style (Subtle) */
.callout--message {
  padding: var(--space-md);
  background: var(--color-bg-tertiary);
  border-left: none;
  font-size: var(--text-sm);
}

/* Small Note Style */
.callout--small {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  border-left-width: 2px;
}

/* ============================================
   3. BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              background-color var(--duration-fast);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
  /* Bouncy transition from 6-delight.css */
  transition:
    transform var(--transition-bounce, 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55)),
    box-shadow var(--duration-normal) var(--ease-out),
    background-color var(--duration-fast);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: scale(1.05) translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.btn-primary:active {
  transform: scale(0.95);
}

.btn:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background-color: var(--color-primary-highlight);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text);
  border-color: transparent;
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background-color: var(--color-bg-secondary);
  color: var(--color-primary);
}

.btn-sm {
  padding: calc(var(--space-xs) * 1.5) var(--space-sm);
  font-size: var(--text-xs);
}

.btn-lg {
  padding: var(--space-md) var(--space-lg);
  font-size: var(--text-base);
}

/* ============================================
   4. TIMELINE
   Consolidates .resume__entry and .timeline-entry
   ============================================ */

.timeline {
  position: relative;
  margin: var(--space-xl) 0;
  border-left: 2px solid var(--color-border);
  padding-left: var(--space-lg);
}

.timeline__entry {
  position: relative;
  margin-bottom: var(--space-xl);
}

/* The dot */
.timeline__entry::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-lg) - 5px);
  top: 0.5em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-bg);
}

.timeline__entry:last-child {
  margin-bottom: 0;
}

.timeline__header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-xs);
  margin-bottom: var(--space-xs);
}

.timeline__title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.timeline__title a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--color-primary);
  transition: color var(--duration-fast);
}

.timeline__title a:hover,
.timeline__title a:focus-visible {
  color: var(--color-primary);
}

.timeline__title a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.timeline__date {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.timeline__org {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.timeline__summary {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: var(--space-sm);
}

.timeline__highlights {
  list-style: disc;
  padding-left: var(--space-md);
  margin: 0;
}

.timeline__highlights li {
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.timeline__highlights li::marker {
  color: var(--color-primary);
}

/* Process Timeline (Horizontal) */
.timeline--process {
  display: flex;
  gap: var(--space-md);
  overflow-x: auto;
  padding-bottom: var(--space-md);
  border-left: none;
  padding-left: 0;
}

.timeline--process .timeline__entry {
  flex: 1;
  min-width: 150px;
  text-align: center;
  padding: var(--space-md);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  border: 2px solid transparent;
}

.timeline--process .timeline__entry::before {
  display: none;
}

.timeline--process .timeline__entry:hover {
  border-color: var(--color-primary);
}

/* Timeline shortcode support (BEM naming) */
.timeline__marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--text-sm);
}

.timeline__content {
  flex: 1;
}

.timeline__label {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.timeline__description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

/* Process timeline with BEM classes */
.timeline--process .timeline__entry {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  text-align: left;
}

.timeline--process .timeline__marker {
  flex-shrink: 0;
}

/* ============================================
   5. TAGS (Technical/Terminal Style)
   Unified component with subtle glow in dark mode
   ============================================ */

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background-color: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  text-decoration: none;
  transition:
    background-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out);
  position: relative;
}

/* File-directory style prefix */
.tag::before {
  content: '#';
  margin-right: 0.25em;
  color: var(--color-link, var(--color-primary));
  opacity: 0.7;
  font-weight: 400;
}

.tag:hover,
.tag:focus-visible {
  background-color: var(--color-bg-secondary);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.tag:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Subtle cyan glow in dark mode */
[data-theme="dark"] .tag:hover,
[data-theme="dark"] .tag:focus-visible,
.dark-mode .tag:hover,
.dark-mode .tag:focus-visible {
  background-color: var(--color-bg-tertiary);
  box-shadow: 0 0 4px hsla(var(--hue-cyber), var(--saturation-vivid), 50%, var(--alpha-20));
}

.tag-sm {
  padding: 2px var(--space-xs);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
}

.tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

/* Tag count (used in tag/category clouds) */
.tag-count {
  opacity: 0.7;
  margin-left: 0.25em;
  font-size: 0.9em;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .tag {
    transition: none;
  }
  
  .tag:hover {
    box-shadow: none;
  }
}

/* ============================================
   6. EMPTY STATES
   ============================================ */

.empty-state {
  text-align: center;
  padding: var(--space-xxl) var(--space-md);
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
}

.empty-state__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  opacity: 0.5;
  display: block;
}

.empty-state__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.empty-state__description {
  font-size: var(--text-sm);
  max-width: 40ch;
  margin: 0 auto;
}

/* ============================================
   7. PAGINATION
   ============================================ */

.pagination {
  display: flex;
  justify-content: center;
  gap: var(--space-xs);
  margin-top: var(--space-xl);
  list-style: none;
  padding: 0;
}

.pagination__link,
.pagination a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 var(--space-sm);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: background var(--duration-fast), color var(--duration-fast);
}

.pagination__link:hover,
.pagination__link:focus-visible,
.pagination a:hover,
.pagination a:focus-visible {
  background: var(--color-border);
}

.pagination__link:focus-visible,
.pagination a:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

.pagination__link--current,
.pagination .current {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  pointer-events: none;
}

/* ============================================
   8. BREADCRUMBS
   ============================================ */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  list-style: none;
}

.breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--color-primary);
}

.breadcrumb a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.breadcrumb__separator {
  color: var(--color-border);
}

/* ============================================
   9. DROPDOWN MENUS
   ============================================ */

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 200px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dropdown);
  z-index: var(--z-dropdown);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity var(--duration-fast),
              visibility var(--duration-fast),
              transform var(--duration-fast);
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: background-color var(--duration-fast);
}

.dropdown-item:hover,
.dropdown-item:focus-visible {
  background-color: var(--color-bg-secondary);
}

.dropdown-item:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: -2px;
}

/* ============================================
   10. ALERTS
   ============================================ */

.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  border-radius: var(--radius-md);
  border-left: 4px solid;
}

.alert-success {
  background-color: var(--color-success-bg);
  border-color: var(--color-success);
}

.alert-warning {
  background-color: var(--color-warning-bg);
  border-color: var(--color-warning);
}

.alert-error {
  background-color: var(--color-error-bg);
  border-color: var(--color-error);
}

.alert-info {
  background-color: var(--color-info-bg);
  border-color: var(--color-info);
}

/* ============================================
   11. FORMS
   ============================================ */

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

/* ============================================
   8. TAXONOMY COMPONENTS
   ============================================ */

/* --- Taxonomy Item (used in taxonomy lists) --- */
.taxonomy-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface);
  border: var(--border-primary);
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-heading);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.taxonomy-item:hover,
.taxonomy-item:focus-visible {
  background-color: var(--color-primary);
  color: var(--color-background);
}

.taxonomy-item:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

.taxonomy-item__count {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  background: var(--color-gray-bg);
  padding: 0.125em 0.5em;
  border-radius: var(--radius-sm);
}

.taxonomy-item:hover .taxonomy-item__count {
  background: rgba(var(--shadow-color-light), var(--alpha-20));
  color: inherit;
}

/* Tag cloud items now use unified .tag component (see section 5) */

/* Category cloud items now use unified .tag component (see section 5) */

/* --- Page Label (term pages) --- */
.page-label {
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-2);
}

.page-label a {
  color: var(--color-primary);
  text-decoration: none;
}

.page-count {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin-top: var(--space-2);
}

/* ============================================
   9. GALLERY COMPONENTS
   ============================================ */

/* --- Gallery CSS Variable Support --- */
.gallery--grid {
  --gallery-cols: auto;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-highlight);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-hint {
  margin-top: var(--space-xs);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ============================================
   10. THEME TOGGLE BUTTON
   ============================================ */

.theme-toggle-wrapper {
  display: inline-flex;
  align-items: center;
  margin-left: var(--space-sm);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: 
    background-color var(--duration-fast),
    border-color var(--duration-fast),
    transform var(--duration-fast);
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  background: var(--color-bg-secondary);
  border-color: var(--color-primary);
  transform: scale(1.05);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

.theme-toggle:active {
  transform: scale(0.95);
}

.theme-toggle-icon {
  font-size: 1.125rem;
  line-height: 1;
}

/* Show/hide icons based on current theme */
.theme-toggle-icon--light {
  display: none;
}

.theme-toggle-icon--dark {
  display: inline;
}

/* When in dark mode, show sun icon to switch to light */
.dark-mode .theme-toggle-icon--light,
[data-theme="dark"] .theme-toggle-icon--light {
  display: inline;
}

.dark-mode .theme-toggle-icon--dark,
[data-theme="dark"] .theme-toggle-icon--dark {
  display: none;
}

/* Responsive: hide on mobile, show in nav drawer instead */
@media (max-width: 768px) {
  .nav-bar .theme-toggle-wrapper {
    display: none;
  }
}

/* Left panel theme toggle - visible on desktop sidebar */
.left-panel__theme-toggle {
  display: block;
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(var(--shadow-color-light), var(--alpha-20));
}

/* Style for theme toggle in left panel (dark background) */
.left-panel__theme-toggle .theme-toggle {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  justify-content: flex-start;
  gap: var(--space-sm);
  background: rgba(var(--shadow-color-light), var(--alpha-10));
  border: 1px solid rgba(var(--shadow-color-light), var(--alpha-20));
  color: rgba(var(--shadow-color-light), var(--alpha-90));
}

.left-panel__theme-toggle .theme-toggle:hover {
  background: rgba(var(--shadow-color-light), var(--alpha-20));
  border-color: rgba(var(--shadow-color-light), var(--alpha-30));
}

.left-panel__theme-toggle .theme-toggle-icon {
  font-size: 1rem;
}

/* Hide left panel toggle on mobile (use nav bar toggle instead) */
@media (max-width: 768px) {
  .left-panel__theme-toggle {
    display: none;
  }
}