/* ============================================================
   MAIN.CSS - Comprehensive Design System & Shared Styles
   This is now the single source of truth for design tokens,
   components, and site-wide patterns
   ============================================================ */

/* ============================================================
   DESIGN TOKENS & VARIABLES
   ============================================================ */
:root {
  /* COLOR PALETTE */
  --text-primary: #11151c;
  --text-secondary: #505050;
  --text-light: #999999;
  --text-inverse: #ffffff;

  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --bg-tertiary: #fafafa;

  --border-color: #dddddd;
  --border-light: #f0f0f0;

  --accent-color: #2d5c86;
  --accent-dark: #2a3f5a;
  --accent-light: rgba(45, 92, 134, 0.08);

  --error-color: #dc2626;
  --success-color: #059669;
  --warning-color: #f59e0b;
  --link-color: var(--accent-color);
  --link-hover: var(--accent-dark);

  /* SPACING SCALE */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* LEGACY MAPPINGS (for backwards compatibility) */
  --hh-container-padding: var(--spacing-sm);
  --hh-grid-gap: var(--spacing-md);
  --hh-default-bg-color: var(--bg-primary);
  --hh-default-font-color: var(--text-primary);
  --hh-primary: var(--accent-color);
  --hh-secondary: var(--accent-dark);
  --hh-accent: var(--bg-secondary);
  --hh-accent-dark: var(--border-color);
  --hh-accent-darker: var(--text-secondary);

  /* TYPOGRAPHY & SCALE */
  --primary-font: "Montserrat", sans-serif;
  --secondary-font: "Montserrat", sans-serif;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;

  --hh-font-size: var(--font-size-base);
  --hh-h1-size: var(--font-size-2xl);
  --hh-h2-size: var(--font-size-xl);
  --hh-h3-size: 1.17em;

  --font-weight-normal: 400;
  --font-weight-medium: 600;
  --font-weight-bold: 700;

  --line-height-base: 1.5;
  --line-height-heading: 1;

  /* COMPONENT TOKENS */
  --hh-primarybutton-padding: 11px;
  --hh-primarybutton-text-color: var(--text-inverse);
  --hh-primarybutton-icon-color: var(--text-inverse);
  --hh-primarybuttonhover-icon-color: var(--accent-color);
  --hh-primarybuttonhover-text-color: var(--accent-color);

  --hh-secondarybutton-text-color: var(--text-inverse);
  --hh-secondarybutton-icon-color: var(--text-inverse);
  --hh-secondarybuttonhover-icon-color: var(--accent-dark);
  --hh-secondarybuttonhover-text-color: var(--accent-dark);

  /* LAYOUT */
  --site-width: 1290px;
  --sidebar-width: 280px;
  --max-read-width: 65ch;
  --thumbnail-size: 250px;

  /* BORDER RADIUS */
  --radius-sm: 3px;
  --radius-base: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-full: 50%;

  /* SHADOWS */
  --shadow-xs: 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 4px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.25);

  /* TRANSITIONS & ANIMATIONS */
  --transition: all 0.3s ease;
  --transition-fast: all 0.15s ease;
  --transition-slow: all 0.5s ease;

  --duration-base: 0.3s;
  --duration-fast: 0.15s;
  --duration-slow: 0.5s;
  --easing-ease: ease;
  --easing-cubic: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Z-INDEX SCALE */
  --z-dropdown: 100;
  --z-sticky: 500;
  --z-fixed: 1000;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-tooltip: 1070;
  --z-notification: 1080;

  /* SIDEBAR */
  --sidebar-bg: var(--accent-dark);
  --sidebar-text: white;
  --transition-speed: 0.3s;
  --header-height: auto;
}
/* ============================================================
   RESET & BASE STYLES
   ============================================================ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  color-scheme: light;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  hanging-punctuation: first allow-end last;
}

body {
  font-family: var(--primary-font);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  font-size: var(--font-size-base);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--link-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--link-hover);
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--secondary-font);
  color: var(--text-primary);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-heading);
  margin-bottom: var(--spacing-sm);
  text-wrap: balance;
}

p {
  text-wrap: pretty;
  line-height: var(--line-height-base);
}
/* ============================================================
   READING PROGRESS BAR
   ============================================================ */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-color);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
  z-index: var(--z-tooltip);
}

/* ============================================================
   ANIMATIONS (Core, shared across all pages)
   ============================================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(40px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideLeft {
  from {
    transform: translateX(-20px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes scaleUp {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ============================================================
   BUTTON COMPONENT (All button types)
   ============================================================ */
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: var(--transition-fast);
}

.btn,
.cta-button,
.search-widget button,
.filter-toggle-btn,
.load-btn,
.share-btn,
.view-btn,
.slider-btn,
.gallery-btn,
.tab-btn,
.layout-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-base);
  transition: var(--transition-fast);
  white-space: nowrap;
}

/* Primary Button Variant */
.btn-primary,
.cta-button,
.search-widget button,
.load-btn:not(.secondary) {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--accent-color);
  color: var(--text-inverse);
  border: none;
}

.btn-primary:hover,
.cta-button:hover,
.search-widget button:hover,
.load-btn:not(.secondary):hover {
  background: var(--accent-dark);
  color: var(--text-inverse);
}

/* Secondary Button Variant */
.btn-secondary,
.load-btn.secondary {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: transparent;
  color: var(--accent-color);
  border: 1px solid var(--accent-color);
}

.btn-secondary:hover,
.load-btn.secondary:hover {
  background: var(--accent-light);
}

/* Small Button Variant */
.btn-sm,
.filter-actions button,
.tab-layout-btn {
  padding: 0.5rem 1rem;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  background: var(--bg-primary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-sm:hover,
.filter-actions button:hover,
.tab-layout-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background: var(--accent-light);
}

.btn-sm.active,
.filter-actions button.active,
.tab-layout-btn.active {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-color: var(--border-color);
}

/* Icon Button */
.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border-radius: var(--radius-full);
}

.btn-icon:hover {
  background: var(--accent-color);
  color: var(--text-inverse);
  transform: translateY(-2px);
}

/* ============================================================
   BADGE & TAG COMPONENT
   ============================================================ */
.post-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 3px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.post-badge.category {
  border: 1.5px solid var(--accent-color);
  color: black;
  background: transparent;
}

.post-badge.date,
.post-badge.read-time {
  background: var(--bg-secondary);
  color: var(--text-secondary);
}

.post-badge svg {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: var(--font-size-xs);

  background: var(--bg-secondary);
  cursor: pointer;
}

.tag-preview {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.tag-preview > * + *:not(.overflow-tag) {
  margin-left: var(--spacing-xs);
}

.tag-more-trigger {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border: 1.5px dashed var(--border-color);
  /* border-radius: 20px; */
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--text-secondary);
  background: var(--bg-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.tag-more-trigger svg {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

.tag-more-trigger:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background: var(--accent-light);
}

.tag-preview .tag.overflow-tag {
  max-width: 0;
  opacity: 0;
  padding: 0;
  border-width: 0;
  margin: 0;
  overflow: hidden;
  white-space: nowrap;
  transition: max-width 0.25s ease, opacity 0.2s ease, padding 0.25s ease, border-width 0.25s ease, margin 0.25s ease;
  transition-delay: var(--stagger, 0s);
}

.tag-preview.expanded .tag.overflow-tag {
  max-width: 200px;
  opacity: 1;
  padding: 4px 10px;
  border-width: 1px;
  margin-left: var(--spacing-xs);
}

/* POST TAGS TRIGGER - With Tooltip (for post cards) */
.post-tags-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  cursor: help;
  position: relative;
  transition: var(--transition-fast);
  font-weight: var(--font-weight-bold);
  margin-left: auto;
}

.post-tags-trigger:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.post-tags-trigger svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.post-tags-tooltip {
  display: none;
  position: absolute;
  bottom: calc(100% + 10px);
  right: 0;
  background: var(--text-primary);
  color: var(--text-inverse);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-base);
  font-size: var(--font-size-xs);
  white-space: normal;
  max-width: 200px;
  z-index: var(--z-tooltip);
  box-shadow: var(--shadow-lg);
  pointer-events: none;
  line-height: 1.4;
}

.post-tags-tooltip::after {
  content: "";
  position: absolute;
  bottom: -6px;
  right: 10px;
  border: 6px solid transparent;
  border-top-color: var(--text-primary);
}

.post-tags-trigger:hover .post-tags-tooltip {
  display: block;
  animation: slideUp var(--duration-fast) var(--easing-ease);
}

/* ============================================================
   TAG MODAL
   ============================================================ */
.tag-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal);
}

.tag-modal-overlay.active {
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn var(--duration-base) var(--easing-ease);
}

.tag-modal {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  max-width: 400px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  animation: slideUp var(--duration-base) var(--easing-ease);
}

.tag-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
}

.tag-modal-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
}

.tag-modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-lg);
  cursor: pointer;
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-base);
  transition: var(--transition-fast);
}

.tag-modal-close:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.tag-modal-content {
  /* display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); */
  display: flex;
  flex-direction: column;

  gap: var(--spacing-md);
  max-height: 60vh;
  overflow-y: auto;
}

.tag-modal-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  /* border-radius: var(--radius-md); */
  background: var(--bg-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
  text-align: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--text-secondary);
}

.tag-modal-item:hover {
  border-color: var(--accent-color);
  background: var(--accent-light);
  color: var(--accent-color);
  transform: translateY(-2px);
}
.tag-modal-content .tag-group .tag-group-grid {
  display: flex;
  flex-wrap: wrap;
  width: max-content;
  gap: var(--spacing-xs);
}
/* ============================================================
   WIDGET COMPONENT (Sidebar & Content Widgets)
   ============================================================ */
.sidebar-widget,
.widget {
  /* border: 1px solid var(--border-color);
  border-radius: var(--radius-base);
  padding: var(--spacing-md);
  background: var(--bg-primary);
  box-shadow: var(--shadow-xs); */
}

.sidebar-widget h2,
.widget h2 {
  font-size: var(--hh-h3-size);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
}

.sidebar-widget h2 span {
  background-color: var(--hh-default-bg-color);
  position: relative;
  z-index: 2;
  padding: 3px 8px 3px 0;
}

.sidebar-widget h2::before,
.widget h2::before {
  content: "";
  display: inline-block;
  height: 2px;
  background-color: var(--hh-accent-dark);
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  z-index: 1;
}

.sidebar-widget p,
.widget p {
  margin: 0 0 var(--spacing-xs) 0;
  font-size: var(--font-size-sm);
}

.sidebar-widget a,
.widget a {
  color: var(--link-color);
  transition: color var(--transition-fast);
}

.sidebar-widget a:hover,
.widget a:hover {
  color: var(--link-hover);
}

/* ============================================================
   SEARCH WIDGET
   ============================================================ */
.search-widget form {
  display: flex;
  gap: var(--spacing-xs);
}

.search-widget input {
  flex: 1;
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-base);
  font-size: var(--font-size-sm);
  font-family: inherit;
  background: var(--bg-primary);
  transition: var(--transition-fast);
}

.search-widget input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.search-widget input::placeholder {
  color: var(--text-light);
}

.search-widget button {
  padding: var(--spacing-xs) var(--spacing-sm);
}

.search-widget svg {
  width: 16px;
  height: 16px;
}

/* ============================================================
   CATEGORIES WIDGET
   ============================================================ */
.categories-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.categories-list li {
  margin: 0;
}

.categories-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-base);
  transition: var(--transition-fast);
  font-size: var(--font-size-sm);
}

.categories-list a:hover {
  background: var(--bg-secondary);
  color: var(--link-hover);
}

.category-count {
  background: var(--accent-color);
  color: var(--text-inverse);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  flex-shrink: 0;
}

/* ============================================================
   CONTACT WIDGET
   ============================================================ */
.contact-widget strong {
  display: block;
  color: var(--text-primary);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-xs);
}

.contact-widget a {
  word-break: break-all;
}

/* ============================================================
   AUTHOR CARD WIDGET
   ============================================================ */
.author-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-base);
  padding: var(--spacing-md);
  background: var(--bg-primary);
  box-shadow: var(--shadow-xs);
  text-align: center;
  transition: var(--transition-fast);
}

.author-card:hover {
  box-shadow: var(--shadow-md);
}

.author-avatar {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  margin: 0 auto var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.author-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.author-title {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-sm);
}

.author-bio {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: var(--spacing-md);
}

.author-published {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--border-color);
}

.author-contact {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
  margin: 0 0 var(--spacing-md);
}

.author-contact__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-xs);
  color: var(--text-primary);
  text-decoration: none;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  padding: 6px 10px;
  border-radius: 999px;
  transition: var(--transition-fast);
  line-height: 1.2;
}

.author-contact__icon {
  display: inline-flex;
}

.author-contact__item:hover,
.author-contact__item:focus-visible {
  box-shadow: var(--shadow-xs);
  transform: translateY(-1px);
  outline: none;
}

.author-contact__text {
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============================================================
   SOCIAL LIST
   ============================================================ */
.social-list {
  list-style: none;
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.social-list li {
  margin: 0;
}

.social-list a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  transition: var(--transition-fast);
  color: var(--text-primary);
}

.social-list a:hover {
  background: var(--accent-color);
  color: var(--text-inverse);
  transform: translateY(-3px);
}

/* ============================================================
   RELATED ARTICLES/STORIES (Unified)
   ============================================================ */
.related-articles,
.related-stories {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.related-article,
.related-story {
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-fast);
}

.related-article:last-child,
.related-story:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.related-article:hover,
.related-story:hover {
  transform: translateX(4px);
}

.related-article-title,
.related-story-title {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  line-height: 1.3;
  text-wrap: pretty;
}

.related-article-meta,
.related-story-meta {
  display: flex;
  gap: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--text-light);
}

/* Card variant for related stories */
.related-story {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--spacing-sm);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  text-decoration: none;
  color: inherit;
}

.related-story:last-child {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: var(--spacing-sm);
}

.related-story-image {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-base);
  background: var(--bg-secondary);
  overflow: hidden;
  flex-shrink: 0;
}

.related-story-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-base);
}

.related-story:hover .related-story-image img {
  transform: scale(1.05);
}

.related-story-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--spacing-xs);
}

/* ============================================================
   SECTION HEADER
   ============================================================ */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--border-color);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.section-header h2 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  text-wrap: balance;
}

/* ============================================================
   RESPONSIVE UTILITIES
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --font-size-2xl: 1.75rem;
    --font-size-xl: 1.25rem;
  }

  .tag-modal-content {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: var(--spacing-sm);
  }

  .tag-modal-item {
    padding: var(--spacing-sm);
    font-size: var(--font-size-xs);
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ============================================================
   BACK TO TOP BUTTON - Sitewide
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: var(--accent-color);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: var(--z-dropdown);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease-in, visibility 0.4s ease-in,
    transform 0.4s ease-in;
  transform: translateY(20px);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--accent-dark);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}
.tag-checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.tag-checkbox-wrapper {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  cursor: pointer;
  border-radius: var(--radius-base);
  transition: var(--transition-fast);
  user-select: none;
}

.tag-checkbox-wrapper:hover {
  background: var(--bg-secondary);
}

.tag-checkbox-wrapper input[type="checkbox"] {
  cursor: pointer;
  accent-color: var(--accent-color);
}

.tag-checkbox-wrapper span {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.tag-checkbox-wrapper input[type="checkbox"]:checked + span {
  color: var(--text-primary);
  font-weight: var(--font-weight-bold);
}

.grid {
  display: grid;
}
.gap-xs {
  gap: var(--spacing-xs);
}
.gap-sm {
  gap: var(--spacing-sm);
}
.gap-md {
  gap: var(--spacing-md);
}