/* ============================================================
   Oddup Blog Theme — screen.css
   Ghost CMS 5.x compatible
   ============================================================ */

/* 1. FONTS
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter+Tight:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=JetBrains+Mono:wght@400;500&display=swap');

/* 2. CSS CUSTOM PROPERTIES
   ============================================================ */
:root {
  /* Colors */
  --color-bg:              #FFFFFF;
  --color-card-bg:         #F5F7FA;
  --color-text:            #1A1A1A;
  --color-muted:           #6B7280;
  --color-border:          #DDE3ED;
  --color-primary:         #3898EC;
  --color-primary-dark:    #2074c8;
  --color-primary-light:   #EBF5FF;
  --color-red:             #EF4444;
  --color-green:           #22C55E;
  --color-amber:           #F59E0B;
  --color-navy:            #0D2B52;
  --color-blue:            #3B82F6;
  --color-purple:          #8B5CF6;
  --color-emerald:         #10B981;
  --color-teal:            #3898EC;

  /* Typography */
  --font-body:   'Inter Tight', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:   'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  /* Ghost custom font support */
  --gh-font-heading: var(--font-body);
  --gh-font-body: var(--font-body);

  /* Type scale */
  --text-xs:    0.75rem;
  --text-sm:    0.875rem;
  --text-base:  1rem;
  --text-lg:    1.125rem;
  --text-xl:    1.25rem;
  --text-2xl:   1.5rem;
  --text-3xl:   1.875rem;
  --text-4xl:   2.25rem;
  --text-5xl:   3rem;
  --text-6xl:   3.75rem;

  /* Spacing */
  --space-1:    0.25rem;
  --space-2:    0.5rem;
  --space-3:    0.75rem;
  --space-4:    1rem;
  --space-5:    1.25rem;
  --space-6:    1.5rem;
  --space-8:    2rem;
  --space-10:   2.5rem;
  --space-12:   3rem;
  --space-16:   4rem;
  --space-20:   5rem;
  --space-24:   6rem;

  /* Layout */
  --container-max:  1200px;
  --prose-max:      768px;
  --radius:         8px;
  --radius-sm:      6px;
  --radius-lg:      12px;
  --radius-full:    9999px;

  /* Shadows */
  --shadow-sm:   0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md:   0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.05);
  --shadow-lg:   0 10px 30px rgba(0,0,0,0.10), 0 4px 8px rgba(0,0,0,0.06);

  /* Navigation */
  --nav-height: 64px;

  /* Transitions */
  --transition: 150ms ease;
  --transition-md: 250ms ease;
}

/* 3. RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--color-primary-dark);
}

p { margin-bottom: var(--space-4); }
p:last-child { margin-bottom: 0; }

ul, ol { list-style: none; }

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  background: none;
}

/* 4. LAYOUT
   ============================================================ */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.container--narrow {
  max-width: var(--prose-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

main {
  padding-top: var(--nav-height);
  min-height: calc(100vh - var(--nav-height));
}

/* 5. NAVIGATION
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
  gap: var(--space-8);
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.site-header__logo svg {
  height: 22px;
  width: auto;
}

.site-header__logo:hover {
  opacity: 0.85;
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.site-header__nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-muted);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background-color var(--transition);
  white-space: nowrap;
}

.site-header__nav a:hover {
  color: var(--color-text);
  background-color: var(--color-card-bg);
}

.site-header__nav a.active {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

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

.btn--primary {
  background-color: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
  box-shadow: 0 2px 8px rgba(56, 152, 236, 0.35);
}

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

.btn--outline:hover {
  background-color: var(--color-card-bg);
  border-color: var(--color-muted);
  color: var(--color-text);
}

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

.btn--ghost:hover {
  background-color: var(--color-card-bg);
  color: var(--color-text);
}

.btn--sm {
  font-size: var(--text-xs);
  padding: calc(var(--space-1) + 2px) var(--space-3);
}

.btn--lg {
  font-size: var(--text-base);
  padding: var(--space-3) var(--space-6);
}

/* Mobile menu toggle */
.site-header__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
  border: none;
  background: none;
}

.site-header__mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: var(--radius-full);
  transition: transform var(--transition-md), opacity var(--transition-md);
}

/* 6. HERO SECTION
   ============================================================ */
.hero {
  background: linear-gradient(180deg, #F5F7FA 0%, #FFFFFF 100%);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-20) 0 var(--space-16);
  text-align: center;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  border: 1px solid rgba(56, 152, 236, 0.2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-5);
}

.hero__title {
  font-size: clamp(var(--text-4xl), 5vw, var(--text-6xl));
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-5);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-muted);
  max-width: 520px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* 7. CATEGORY FILTERS
   ============================================================ */
.tag-filters {
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
  scrollbar-width: none;
}

.tag-filters::-webkit-scrollbar { display: none; }

.tag-filters__inner {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-width: max-content;
}

.tag-filter-pill {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  background: var(--color-bg);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.tag-filter-pill:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.tag-filter-pill.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* 8. SECTION HEADERS
   ============================================================ */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-12) 0 var(--space-6);
}

.section-header__title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.section-header__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-primary);
  white-space: nowrap;
}

.section-header__link:hover {
  color: var(--color-primary-dark);
}

/* 9. FEATURED POST
   ============================================================ */
.featured-post {
  padding: var(--space-12) 0 var(--space-8);
}

.featured-post__card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-md);
}

.featured-post__card:hover {
  box-shadow: var(--shadow-md);
}

.featured-post__image {
  overflow: hidden;
  background-color: var(--color-card-bg);
  min-height: 360px;
}

.featured-post__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}

.featured-post__card:hover .featured-post__image img {
  transform: scale(1.03);
}

.featured-post__image--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-primary) 100%);
}

.featured-post__image--placeholder svg {
  width: 64px;
  height: 64px;
  opacity: 0.2;
}

.featured-post__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-10) var(--space-12);
}

.featured-post__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.featured-post__label::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
}

.featured-post__title {
  font-size: clamp(var(--text-2xl), 2.5vw, var(--text-4xl));
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
  transition: color var(--transition);
}

.featured-post__card:hover .featured-post__title {
  color: var(--color-primary);
}

.featured-post__excerpt {
  font-size: var(--text-base);
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: var(--space-6);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.featured-post__meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.featured-post__author {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.featured-post__author img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
}

.featured-post__author-name {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}

.featured-post__date,
.featured-post__read-time {
  font-size: var(--text-sm);
  color: var(--color-muted);
}

.meta-separator {
  color: var(--color-border);
  font-size: var(--text-xs);
}

/* 10. POST GRID
   ============================================================ */
.post-feed {
  padding: var(--space-8) 0 var(--space-16);
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

/* 11. POST CARD
   ============================================================ */
.post-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition-md), transform var(--transition-md), border-color var(--transition-md);
  box-shadow: var(--shadow-sm);
}

.post-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: rgba(56, 152, 236, 0.2);
}

.post-card__image-wrap {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background-color: var(--color-card-bg);
  position: relative;
}

.post-card__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}

.post-card:hover .post-card__image-wrap img {
  transform: scale(1.04);
}

.post-card__image-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-card-bg) 0%, var(--color-border) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.post-card__image-placeholder svg {
  width: 40px;
  height: 40px;
  opacity: 0.3;
}

.post-card__body {
  padding: var(--space-5) var(--space-5) var(--space-4);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.post-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.badge {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  line-height: 1.5;
}

/* Badge color variants */
.badge--teal    { background: rgba(56,152,236,0.1);  color: var(--color-teal); }
.badge--blue    { background: rgba(59,130,246,0.1);  color: var(--color-blue); }
.badge--purple  { background: rgba(139,92,246,0.1);  color: var(--color-purple); }
.badge--amber   { background: rgba(245,158,11,0.1);  color: var(--color-amber); }
.badge--emerald { background: rgba(16,185,129,0.1);  color: var(--color-emerald); }
.badge--red     { background: rgba(239,68,68,0.1);   color: var(--color-red); }
.badge--green   { background: rgba(34,197,94,0.1);   color: var(--color-green); }
.badge--navy    { background: rgba(13,43,82,0.08);   color: var(--color-navy); }
.badge--gray    { background: var(--color-card-bg);  color: var(--color-muted); }

.post-card__title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}

.post-card:hover .post-card__title {
  color: var(--color-primary);
}

.post-card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.65;
  margin-bottom: var(--space-4);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.post-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-muted);
}

.post-card__read-more {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-primary);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  transition: gap var(--transition);
}

.post-card:hover .post-card__read-more {
  gap: var(--space-2);
}

.post-card__read-more svg {
  transition: transform var(--transition);
}

.post-card:hover .post-card__read-more svg {
  transform: translateX(2px);
}

/* 12. ARTICLE PAGE
   ============================================================ */
.article-hero {
  background: var(--color-card-bg);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-16) 0 var(--space-12);
}

.article-hero__inner {
  max-width: 820px;
  margin-inline: auto;
  padding-inline: var(--space-6);
  text-align: center;
}

.article-hero__tags {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.article-hero__title {
  font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: var(--space-5);
}

.article-hero__excerpt {
  font-size: var(--text-xl);
  color: var(--color-muted);
  line-height: 1.6;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.article-hero__meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
}

.article-hero__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.article-hero__author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-border);
}

.article-hero__author-info {}

.article-hero__author-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  display: block;
}

.article-hero__author-role {
  font-size: var(--text-xs);
  color: var(--color-muted);
}

.article-hero__stats {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.article-hero__stat {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-muted);
}

.article-hero__stat svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* Feature Image */
.article-feature-image {
  max-width: 1000px;
  margin-inline: auto;
  padding: var(--space-10) var(--space-6) 0;
}

.article-feature-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* Article Layout */
.article-layout {
  display: grid;
  grid-template-columns: 1fr min(var(--prose-max), 100%) 1fr;
  padding: var(--space-12) 0;
}

.article-layout > * {
  grid-column: 2;
  padding-inline: var(--space-6);
}

/* 13. PROSE CONTENT
   ============================================================ */
.gh-content {
  font-size: var(--text-lg);
  line-height: 1.75;
  color: var(--color-text);
}

.gh-content > * + * {
  margin-top: var(--space-6);
}

.gh-content h1 {
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
}

.gh-content h2 {
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--color-text);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
}

.gh-content h3 {
  font-size: var(--text-2xl);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.gh-content h4 {
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.gh-content h5, .gh-content h6 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.gh-content p {
  margin-bottom: var(--space-5);
  color: var(--color-text);
}

.gh-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-color: rgba(56, 152, 236, 0.4);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--transition), color var(--transition);
}

.gh-content a:hover {
  color: var(--color-primary-dark);
  text-decoration-color: var(--color-primary);
}

.gh-content strong {
  font-weight: 600;
  color: var(--color-text);
}

.gh-content em {
  font-style: italic;
}

.gh-content ul, .gh-content ol {
  padding-left: var(--space-6);
  margin-bottom: var(--space-5);
}

.gh-content ul { list-style: disc; }
.gh-content ol { list-style: decimal; }

.gh-content li {
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

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

.gh-content blockquote {
  border-left: 3px solid var(--color-primary);
  background-color: var(--color-primary-light);
  padding: var(--space-4) var(--space-6);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: var(--space-8) 0;
  font-size: var(--text-xl);
  font-style: italic;
  color: var(--color-text);
  line-height: 1.65;
}

.gh-content blockquote p {
  margin-bottom: 0;
}

.gh-content blockquote cite {
  display: block;
  font-size: var(--text-sm);
  font-style: normal;
  color: var(--color-muted);
  margin-top: var(--space-3);
}

.gh-content hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-10) 0;
}

/* Inline code */
.gh-content code:not(pre code) {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  color: var(--color-red);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Code blocks */
.gh-content pre {
  background-color: #0F172A;
  color: #E2E8F0;
  border-radius: var(--radius);
  padding: var(--space-6);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.7;
  margin: var(--space-8) 0;
  border: 1px solid rgba(255,255,255,0.08);
  -webkit-overflow-scrolling: touch;
}

.gh-content pre code {
  font-family: var(--font-mono);
  font-size: inherit;
  background: none;
  border: none;
  color: inherit;
  padding: 0;
}

/* Tables */
.gh-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-8) 0;
  font-size: var(--text-sm);
}

.gh-content th {
  text-align: left;
  font-weight: 600;
  padding: var(--space-3) var(--space-4);
  border-bottom: 2px solid var(--color-border);
  color: var(--color-text);
  white-space: nowrap;
}

.gh-content td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

.gh-content tr:hover td {
  background-color: var(--color-card-bg);
}

/* 14. GHOST CARDS (.kg-*)
   ============================================================ */

/* Image card */
.kg-image-card {
  margin: var(--space-8) 0;
}

.kg-image-card img {
  border-radius: var(--radius);
  width: 100%;
}

.kg-image-card figcaption {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-muted);
  margin-top: var(--space-2);
  font-style: italic;
}

/* Wide image */
.kg-width-wide {
  margin-left: calc(50% - min(46vw, 600px));
  margin-right: calc(50% - min(46vw, 600px));
  width: auto;
  max-width: none;
}

.kg-width-wide img {
  width: 100%;
  border-radius: var(--radius);
}

/* Full width image */
.kg-width-full {
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  width: 100vw;
  max-width: 100vw;
}

.kg-width-full img {
  width: 100%;
  border-radius: 0;
}

/* Gallery card */
.kg-gallery-card {
  margin: var(--space-8) 0;
}

.kg-gallery-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.kg-gallery-row {
  display: flex;
  gap: var(--space-3);
}

.kg-gallery-image {
  flex: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.kg-gallery-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.kg-gallery-card figcaption {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-muted);
  margin-top: var(--space-2);
  font-style: italic;
}

/* Bookmark card */
.kg-bookmark-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: var(--space-8) 0;
  transition: box-shadow var(--transition-md), border-color var(--transition-md);
}

.kg-bookmark-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.kg-bookmark-container {
  display: flex;
  align-items: stretch;
  color: inherit;
  text-decoration: none;
}

.kg-bookmark-content {
  padding: var(--space-4) var(--space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.kg-bookmark-title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
  line-height: 1.4;
}

.kg-bookmark-description {
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.5;
  margin-bottom: var(--space-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.kg-bookmark-metadata {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.kg-bookmark-icon {
  width: 16px;
  height: 16px;
}

.kg-bookmark-publisher {
  font-size: var(--text-xs);
  color: var(--color-muted);
  font-weight: 500;
}

.kg-bookmark-thumbnail {
  width: 160px;
  min-height: 100%;
  flex-shrink: 0;
  overflow: hidden;
  background: var(--color-card-bg);
}

.kg-bookmark-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Callout card */
.kg-callout-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius);
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  margin: var(--space-8) 0;
}

.kg-callout-emoji {
  font-size: var(--text-xl);
  flex-shrink: 0;
  line-height: 1.5;
}

.kg-callout-text {
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-text);
}

/* Toggle card */
.kg-toggle-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: var(--space-6) 0;
}

.kg-toggle-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  cursor: pointer;
  background: var(--color-card-bg);
}

.kg-toggle-heading-text {
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-text);
}

.kg-toggle-content {
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

/* Video card */
.kg-video-card {
  margin: var(--space-8) 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
}

.kg-video-card video {
  width: 100%;
  display: block;
}

/* Audio card */
.kg-audio-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-4);
  margin: var(--space-6) 0;
  background: var(--color-card-bg);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Embed card */
.kg-embed-card {
  margin: var(--space-8) 0;
  border-radius: var(--radius);
  overflow: hidden;
}

.kg-embed-card iframe {
  width: 100%;
  border: none;
  border-radius: var(--radius);
}

/* File card */
.kg-file-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-5);
  margin: var(--space-6) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  background: var(--color-card-bg);
  transition: border-color var(--transition);
}

.kg-file-card:hover { border-color: var(--color-primary); }

.kg-file-card-container {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  text-decoration: none;
  color: inherit;
  width: 100%;
}

.kg-file-card-title {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
}

.kg-file-card-caption {
  font-size: var(--text-xs);
  color: var(--color-muted);
  margin-top: 2px;
}

/* Button card */
.kg-button-card {
  text-align: center;
  margin: var(--space-8) 0;
}

.kg-button-card a {
  display: inline-flex;
  align-items: center;
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--text-sm);
  text-decoration: none;
  transition: background-color var(--transition), box-shadow var(--transition);
}

.kg-button-card a:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 2px 8px rgba(56,152,236,0.35);
  color: #fff;
}

/* Product card */
.kg-product-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: var(--space-8) 0;
  padding: var(--space-6);
  background: var(--color-card-bg);
}

.kg-product-card-title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.kg-product-card-rating-star { color: var(--color-amber); }

/* Header card */
.kg-header-card {
  padding: var(--space-16) var(--space-8);
  text-align: center;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-primary) 100%);
  border-radius: var(--radius-lg);
  margin: var(--space-8) 0;
  color: #fff;
}

.kg-header-card h2 {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-4);
}

.kg-header-card p { color: rgba(255,255,255,0.85); }

/* 15. AUTHOR BIO
   ============================================================ */
.author-bio {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  margin: var(--space-12) 0;
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
  background: var(--color-card-bg);
}

.author-bio__avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 3px solid var(--color-border);
}

.author-bio__avatar-placeholder {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-navy) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: var(--text-2xl);
  font-weight: 700;
  flex-shrink: 0;
}

.author-bio__content {}

.author-bio__name {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.author-bio__role {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--space-3);
}

.author-bio__description {
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.65;
  margin-bottom: var(--space-4);
}

.author-bio__links {
  display: flex;
  gap: var(--space-3);
}

.author-bio__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.author-bio__link:hover {
  color: var(--color-primary-dark);
}

/* 16. RELATED POSTS
   ============================================================ */
.related-posts {
  border-top: 1px solid var(--color-border);
  padding: var(--space-12) 0 var(--space-16);
}

.related-posts__header {
  margin-bottom: var(--space-8);
}

.related-posts__title {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.015em;
}

/* 17. TAG / AUTHOR ARCHIVE HEADER
   ============================================================ */
.archive-header {
  background: linear-gradient(180deg, #F5F7FA 0%, #FFFFFF 100%);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-16) 0 var(--space-12);
  text-align: center;
}

.archive-header__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-primary-light);
  border: 2px solid rgba(56, 152, 236, 0.2);
  margin-inline: auto;
  margin-bottom: var(--space-5);
  font-size: var(--text-2xl);
}

.archive-header__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--color-border);
  margin-inline: auto;
  margin-bottom: var(--space-5);
}

.archive-header__name {
  font-size: var(--text-4xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.archive-header__description {
  font-size: var(--text-lg);
  color: var(--color-muted);
  max-width: 520px;
  margin-inline: auto;
  line-height: 1.6;
  margin-bottom: var(--space-5);
}

.archive-header__count {
  font-size: var(--text-sm);
  color: var(--color-muted);
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  display: inline-block;
}

/* 18. PAGINATION
   ============================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-8) 0 var(--space-16);
}

.pagination__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  background: var(--color-bg);
  transition: all var(--transition);
  text-decoration: none;
}

.pagination__btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.pagination__btn:disabled,
.pagination__btn.disabled {
  opacity: 0.4;
  pointer-events: none;
  cursor: default;
}

.pagination__info {
  font-size: var(--text-sm);
  color: var(--color-muted);
  padding: var(--space-2) var(--space-4);
}

/* 19. FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-card-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--space-16) 0 var(--space-8);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.site-footer__brand {}

.site-footer__brand-logo {
  margin-bottom: var(--space-4);
}

.site-footer__tagline {
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.65;
  max-width: 260px;
  margin-bottom: var(--space-5);
}

.site-footer__social {
  display: flex;
  gap: var(--space-3);
}

.site-footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  background: var(--color-bg);
  transition: all var(--transition);
}

.site-footer__social-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.site-footer__social-link svg {
  width: 16px;
  height: 16px;
}

.site-footer__col-title {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer__links a {
  font-size: var(--text-sm);
  color: var(--color-muted);
  transition: color var(--transition);
  text-decoration: none;
}

.site-footer__links a:hover {
  color: var(--color-primary);
}

.site-footer__bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.site-footer__copyright {
  font-size: var(--text-sm);
  color: var(--color-muted);
}

.site-footer__credit {
  font-size: var(--text-xs);
  color: var(--color-muted);
}

.site-footer__credit a {
  color: var(--color-primary);
  text-decoration: none;
}

.site-footer__credit a:hover {
  text-decoration: underline;
}

/* 20. SUBSCRIBE / MEMBERS FORMS
   ============================================================ */
.subscribe-section {
  background: linear-gradient(135deg, var(--color-navy) 0%, #1a4a7a 100%);
  padding: var(--space-16) 0;
  text-align: center;
}

.subscribe-section__title {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}

.subscribe-section__subtitle {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.75);
  margin-bottom: var(--space-8);
  max-width: 480px;
  margin-inline: auto;
}

.subscribe-section__subtitle {
  margin-bottom: var(--space-8);
}

.subscribe-form {
  display: flex;
  gap: var(--space-3);
  max-width: 480px;
  margin-inline: auto;
}

.subscribe-form__input {
  flex: 1;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.1);
  color: #fff;
  outline: none;
  transition: border-color var(--transition), background var(--transition);
}

.subscribe-form__input::placeholder { color: rgba(255,255,255,0.5); }

.subscribe-form__input:focus {
  border-color: rgba(255,255,255,0.5);
  background: rgba(255,255,255,0.15);
}

.gh-subscribe-form {
  display: flex;
  gap: var(--space-3);
  max-width: 480px;
  margin-inline: auto;
}

.gh-subscribe-form input[type="email"] {
  flex: 1;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.1);
  color: #fff;
  outline: none;
}

.gh-subscribe-form input[type="email"]::placeholder { color: rgba(255,255,255,0.5); }
.gh-subscribe-form input[type="email"]:focus {
  border-color: rgba(255,255,255,0.5);
  outline: none;
}

.gh-subscribe-form button[type="submit"] {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  background: #fff;
  color: var(--color-navy);
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity var(--transition);
}

.gh-subscribe-form button[type="submit"]:hover { opacity: 0.9; }

/* 21. ERROR PAGES
   ============================================================ */
.error-page {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-20) var(--space-6);
}

.error-page__code {
  font-size: clamp(var(--text-5xl), 15vw, 8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--color-border);
  line-height: 1;
  margin-bottom: var(--space-4);
}

.error-page__title {
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.error-page__message {
  font-size: var(--text-lg);
  color: var(--color-muted);
  max-width: 400px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.error-page__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  justify-content: center;
}

/* 22. BACK LINK
   ============================================================ */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-muted);
  padding: var(--space-4) 0;
  transition: color var(--transition);
}

.back-link:hover {
  color: var(--color-primary);
}

.back-link svg {
  transition: transform var(--transition);
}

.back-link:hover svg {
  transform: translateX(-3px);
}

/* 23. ARTICLE SHARING / UTILITY
   ============================================================ */
.article-share {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-8) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin: var(--space-8) 0;
}

.article-share__label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.article-share__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  background: var(--color-bg);
  text-decoration: none;
  transition: all var(--transition);
}

.article-share__btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* 24. RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .post-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .featured-post__content {
    padding: var(--space-8);
  }
}

@media (max-width: 768px) {
  .site-header__nav {
    display: none;
    position: fixed;
    inset: var(--nav-height) 0 0 0;
    background: var(--color-bg);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-6);
    gap: var(--space-1);
    border-top: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    z-index: 99;
  }

  .site-header__nav.is-open {
    display: flex;
  }

  .site-header__nav a {
    width: 100%;
    font-size: var(--text-base);
    padding: var(--space-3) var(--space-4);
  }

  .site-header__mobile-toggle {
    display: flex;
  }

  .site-header__actions .btn--primary {
    display: none;
  }

  .featured-post__card {
    grid-template-columns: 1fr;
  }

  .featured-post__image {
    min-height: 240px;
    aspect-ratio: 16 / 9;
  }

  .featured-post__content {
    padding: var(--space-6);
  }

  .post-grid {
    grid-template-columns: 1fr;
  }

  .article-hero {
    padding: var(--space-10) 0 var(--space-8);
  }

  .article-hero__title {
    font-size: var(--text-3xl);
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-layout > * {
    grid-column: 1;
  }

  .kg-width-wide,
  .kg-width-full {
    margin-left: calc(-1 * var(--space-6));
    margin-right: calc(-1 * var(--space-6));
    width: calc(100% + var(--space-12));
    max-width: none;
  }

  .author-bio {
    flex-direction: column;
  }

  .gh-content {
    font-size: var(--text-base);
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .site-footer__tagline {
    max-width: 100%;
  }

  .site-footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .subscribe-form, .gh-subscribe-form {
    flex-direction: column;
  }

  .hero__title {
    font-size: var(--text-4xl);
  }
}

@media (max-width: 480px) {
  .container, .container--narrow {
    padding-inline: var(--space-4);
  }

  .post-card__body {
    padding: var(--space-4);
  }

  .article-hero__meta {
    flex-direction: column;
    gap: var(--space-3);
  }

  .pagination {
    gap: var(--space-1);
  }

  .pagination__info {
    display: none;
  }
}

/* 25. PRINT STYLES
   ============================================================ */
@media print {
  .site-header,
  .site-footer,
  .related-posts,
  .subscribe-section,
  .article-share,
  .back-link,
  .tag-filters,
  .btn {
    display: none !important;
  }

  main {
    padding-top: 0;
  }

  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
  }

  .gh-content {
    font-size: 12pt;
    max-width: 100%;
  }

  .article-hero {
    background: none;
    border: none;
    padding: var(--space-6) 0;
  }

  .gh-content pre {
    background: #f5f5f5;
    color: #333;
    border: 1px solid #ccc;
  }

  a { color: #000; text-decoration: underline; }
  a[href]::after { content: " (" attr(href) ")"; font-size: 10pt; }

  h1, h2, h3, h4 { page-break-after: avoid; }
  img { max-width: 100% !important; }
  pre, blockquote { page-break-inside: avoid; }
}

/* 26. UTILITY CLASSES
   ============================================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }

.text-muted { color: var(--color-muted); }
.text-primary { color: var(--color-primary); }

.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }

.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-8) 0;
}

.loading-spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* 27. FOCUS VISIBLE
   ============================================================ */
*:focus {
  outline: none;
}

*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 2px;
}


/* ============================================================
   HELP CENTER STYLES
   Appended from help theme for #help-tagged content
   ============================================================ */

/* --------------------------------------------------------------------------
   4. HEADER
   -------------------------------------------------------------------------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-header-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-xs);
}

.site-header-inner {
    display: flex;
    align-items: center;
    height: var(--header-height);
    max-width: var(--max-width);
    margin-inline: auto;
    padding-inline: var(--space-6);
    gap: var(--space-8);
}

.site-header-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    flex-shrink: 0;
}

.site-header-logo:hover .oddup-logo-svg path[fill="#3A3A3A"] {
    fill: var(--color-primary);
    transition: fill var(--transition-base);
}

.oddup-logo-svg {
    height: 20px;
    width: auto;
}

.site-header-logo-label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-muted);
    border-left: 1px solid var(--color-border);
    padding-left: var(--space-3);
    margin-left: var(--space-1);
    white-space: nowrap;
}

.site-nav {
    flex: 1;
}

.site-nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.site-nav-link {
    display: block;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-muted);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.site-nav-link:hover {
    color: var(--color-fg);
    background: var(--color-card-bg);
}

.site-nav-link--active {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.site-nav-link--active:hover {
    color: var(--color-primary-dark);
    background: var(--color-primary-light);
}

.site-header-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

.header-search-toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-muted);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-card-bg);
    transition: all var(--transition-fast);
}

.header-search-toggle:hover {
    color: var(--color-fg);
    border-color: var(--color-primary);
    background: var(--color-bg);
}

.site-header-cta {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 600;
    color: #FFFFFF;
    background: var(--color-primary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.site-header-cta:hover {
    background: var(--color-primary-dark);
    color: #FFFFFF;
    box-shadow: 0 2px 8px rgba(56, 152, 236, 0.3);
}

.header-search-bar {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
    max-height: 0;
    transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.header-search-bar.is-open {
    max-height: 200px;
}

.header-search-bar-inner {
    max-width: var(--max-width);
    margin-inline: auto;
    padding: var(--space-4) var(--space-6);
}

.site-nav-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
    margin-left: auto;
}

.site-nav-mobile-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-fg);
    border-radius: 2px;
    transition: all var(--transition-fast);
}


/* --------------------------------------------------------------------------
   5. SEARCH BAR
   -------------------------------------------------------------------------- */

.search-bar-wrapper {
    position: relative;
}

.search-form {
    display: flex;
    align-items: center;
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 0 var(--space-4);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    overflow: hidden;
}

.search-form:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(56, 152, 236, 0.12);
}

.search-form-label {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    color: var(--color-muted);
    padding-right: var(--space-3);
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: var(--space-4) 0;
    font-size: var(--text-md);
    color: var(--color-fg);
    outline: none;
    min-width: 0;
}

.search-input::placeholder {
    color: var(--color-muted);
}

.search-input::-webkit-search-cancel-button {
    display: none;
}

.search-clear {
    display: flex;
    align-items: center;
    color: var(--color-muted);
    padding: var(--space-2);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    transition: color var(--transition-fast);
}

.search-clear:hover {
    color: var(--color-fg);
}

/* Search bar size variants */
.search-bar-wrapper--hero .search-input {
    padding: var(--space-5) 0;
    font-size: var(--text-lg);
}

.search-bar-wrapper--hero .search-form {
    border-radius: var(--radius-xl);
    padding: 0 var(--space-5);
    border-width: 2px;
}

.search-bar-wrapper--hero .search-form-label svg {
    width: 22px;
    height: 22px;
}

/* Search results dropdown */
.search-results {
    position: absolute;
    top: calc(100% + var(--space-2));
    left: 0;
    right: 0;
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 200;
    overflow: hidden;
}

.search-results[hidden] {
    display: none;
}

.search-results-inner {
    max-height: 400px;
    overflow-y: auto;
}

.search-results-list {
    padding: var(--space-2);
}

.search-result-item {
    display: block;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
    color: var(--color-fg);
}

.search-result-item:hover,
.search-result-item.is-active {
    background: var(--color-card-bg);
    color: var(--color-fg);
}

.search-result-title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-fg);
    line-height: 1.4;
    margin-bottom: var(--space-1);
}

.search-result-title mark {
    background: transparent;
    color: var(--color-primary);
    font-weight: 700;
}

.search-result-excerpt {
    font-size: var(--text-xs);
    color: var(--color-muted);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.search-result-excerpt mark {
    background: transparent;
    color: var(--color-primary);
    font-weight: 600;
}

.search-result-tag {
    display: inline-block;
    font-size: var(--text-xs);
    color: var(--color-muted);
    background: var(--color-border);
    padding: 1px var(--space-2);
    border-radius: var(--radius-full);
    margin-top: var(--space-1);
}

.search-results-empty,
.search-results-loading {
    padding: var(--space-10) var(--space-6);
    text-align: center;
    color: var(--color-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
}

.search-results-empty svg {
    opacity: 0.4;
    margin: 0 auto;
}

.search-results-empty p {
    font-size: var(--text-sm);
    font-weight: 500;
}

.search-results-empty-sub {
    font-size: var(--text-xs);
    font-weight: 400 !important;
}

.search-spinner {
    width: 28px;
    height: 28px;
    border: 2.5px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    margin: 0 auto;
}

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


/* --------------------------------------------------------------------------
   6. HELP HOME — HERO
   -------------------------------------------------------------------------- */

.help-hero {
    background: linear-gradient(135deg, #F0F7FF 0%, #F5F7FA 50%, #FFFFFF 100%);
    padding: var(--space-20) 0 var(--space-16);
    border-bottom: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.help-hero::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(56, 152, 236, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.help-hero-inner {
    max-width: 680px;
    margin-inline: auto;
    text-align: center;
}

.help-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-primary);
    background: var(--color-primary-light);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-6);
}

.help-hero-title {
    font-size: var(--text-5xl);
    font-weight: 800;
    color: var(--color-fg);
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-4);
}

.help-hero-subtitle {
    font-size: var(--text-lg);
    color: var(--color-muted);
    line-height: 1.6;
    margin-bottom: var(--space-8);
    font-weight: 400;
}

.help-hero-search {
    margin-bottom: var(--space-5);
}

.help-hero-popular-searches {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.popular-searches-label {
    font-size: var(--text-sm);
    color: var(--color-muted);
    font-weight: 500;
}

.popular-search-pill {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-fg);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.popular-search-pill:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}


/* --------------------------------------------------------------------------
   7. HELP CARDS (CATEGORY GRID)
   -------------------------------------------------------------------------- */

.help-category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-4);
}

.help-category-grid--compact {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.help-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-5);
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--color-fg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.help-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--color-primary);
    transform: scaleY(0);
    transition: transform var(--transition-base);
    border-radius: 0 0 0 var(--radius-lg);
}

.help-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    color: var(--color-fg);
}

.help-card:hover::before {
    transform: scaleY(1);
}

.help-card-icon-wrapper {
    flex-shrink: 0;
}

.help-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-card-bg);
    border-radius: var(--radius-md);
    font-size: 22px;
    line-height: 1;
}

.help-card-body {
    flex: 1;
    min-width: 0;
}

.help-card-title {
    font-size: var(--text-md);
    font-weight: 700;
    color: var(--color-fg);
    margin-bottom: var(--space-2);
    line-height: 1.3;
}

.help-card-description {
    font-size: var(--text-sm);
    color: var(--color-muted);
    line-height: 1.5;
    margin-bottom: var(--space-3);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.help-card-count {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--text-xs);
    color: var(--color-muted);
    font-weight: 500;
}

.help-card-arrow {
    flex-shrink: 0;
    color: var(--color-border);
    transition: color var(--transition-fast), transform var(--transition-fast);
    margin-top: 2px;
}

.help-card:hover .help-card-arrow {
    color: var(--color-primary);
    transform: translateX(4px);
}


/* --------------------------------------------------------------------------
   8. ARTICLE CARDS (GRID LIST)
   -------------------------------------------------------------------------- */

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-4);
}

.article-card {
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    overflow: hidden;
}

.article-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.article-card-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: var(--space-5);
    color: var(--color-fg);
    text-decoration: none;
}

.article-card-link:hover {
    color: var(--color-fg);
}

.article-card-tag {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-primary-light);
    padding: 2px var(--space-2);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.article-card-title {
    font-size: var(--text-md);
    font-weight: 700;
    color: var(--color-fg);
    line-height: 1.4;
    margin-bottom: var(--space-2);
    flex: 1;
}

.article-card:hover .article-card-title {
    color: var(--color-primary);
}

.article-card-excerpt {
    font-size: var(--text-sm);
    color: var(--color-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: var(--space-4);
}

.article-card-footer {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-border);
    margin-top: auto;
}

.article-card-date,
.article-card-read-time {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--text-xs);
    color: var(--color-muted);
}


/* --------------------------------------------------------------------------
   9. CONTACT CTA
   -------------------------------------------------------------------------- */

.help-contact-cta {
    background: linear-gradient(135deg, var(--color-navy) 0%, #0D3B6E 100%);
    padding-block: var(--space-12);
}

.help-contact-cta-inner {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    max-width: 900px;
    margin-inline: auto;
}

.help-contact-cta-icon {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
}

.help-contact-cta-content {
    flex: 1;
}

.help-contact-cta-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: var(--space-2);
    letter-spacing: -0.02em;
}

.help-contact-cta-text {
    font-size: var(--text-md);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.help-contact-cta-actions {
    flex-shrink: 0;
}

.help-contact-cta-actions .btn--primary {
    background: #FFFFFF;
    color: var(--color-navy);
    border-color: #FFFFFF;
    font-size: var(--text-sm);
}

.help-contact-cta-actions .btn--primary:hover {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.9);
    color: var(--color-navy);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}


/* --------------------------------------------------------------------------
   10. BREADCRUMBS
   -------------------------------------------------------------------------- */

.breadcrumbs {
    margin-bottom: var(--space-6);
}

.breadcrumbs-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0;
}

.breadcrumbs-item {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.breadcrumbs-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-sm);
    color: var(--color-muted);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.breadcrumbs-link:hover {
    color: var(--color-primary);
}

.breadcrumbs-separator {
    color: var(--color-border);
    flex-shrink: 0;
}

.breadcrumbs-current {
    font-size: var(--text-sm);
    color: var(--color-fg);
    font-weight: 600;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}


/* --------------------------------------------------------------------------
   11. ARTICLE PAGE LAYOUT
   -------------------------------------------------------------------------- */

.article-page,
.page-page {
    padding-top: var(--space-10);
    padding-bottom: var(--space-16);
}

.article-page .article-layout {
    display: grid;
    grid-template-columns: 1fr 260px;
    gap: var(--space-12);
    align-items: start;
}

.article-main {
    min-width: 0;
    max-width: var(--prose-width);
}

.article-breadcrumbs {
    margin-bottom: var(--space-6);
}

/* Article Header */
.article-header {
    margin-bottom: var(--space-8);
}

.article-tag-badge {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-primary);
    background: var(--color-primary-light);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

.article-title {
    font-size: var(--text-4xl);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: var(--color-fg);
    margin-bottom: var(--space-4);
}

.article-subtitle {
    font-size: var(--text-lg);
    color: var(--color-muted);
    line-height: 1.6;
}

.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-muted);
}

.article-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.article-meta-divider {
    color: var(--color-border);
}

.article-meta-author {
    color: var(--color-muted);
    font-weight: 500;
}

.article-meta-author:hover {
    color: var(--color-primary);
}

/* Feature image */
.article-feature-image {
    margin-bottom: var(--space-8);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.article-feature-image img {
    width: 100%;
    height: auto;
    display: block;
}

.article-feature-image figcaption {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-xs);
    color: var(--color-muted);
    background: var(--color-card-bg);
    text-align: center;
}


/* --------------------------------------------------------------------------
   12. ARTICLE BODY / PROSE
   -------------------------------------------------------------------------- */

.article-body {
    font-size: var(--text-md);
    line-height: 1.75;
    color: var(--color-fg);
}

.article-body h2 {
    font-size: var(--text-2xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.3;
    color: var(--color-fg);
    margin-top: var(--space-10);
    margin-bottom: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
    scroll-margin-top: calc(var(--header-height) + var(--space-6));
}

.article-body h3 {
    font-size: var(--text-xl);
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.4;
    color: var(--color-fg);
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
    scroll-margin-top: calc(var(--header-height) + var(--space-6));
}

.article-body h4 {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-fg);
    margin-top: var(--space-6);
    margin-bottom: var(--space-2);
    scroll-margin-top: calc(var(--header-height) + var(--space-6));
}

.article-body p {
    margin-bottom: var(--space-4);
}

.article-body a {
    color: var(--color-primary);
    text-decoration: underline;
    text-decoration-thickness: 1.5px;
    text-underline-offset: 2px;
}

.article-body a:hover {
    color: var(--color-primary-dark);
}

.article-body strong, .article-body b {
    font-weight: 700;
    color: var(--color-fg);
}

.article-body em {
    font-style: italic;
}

.article-body ul, .article-body ol {
    margin-bottom: var(--space-4);
    padding-left: var(--space-6);
}

.article-body ul {
    list-style: none;
}

.article-body ul li {
    position: relative;
    padding-left: var(--space-4);
    margin-bottom: var(--space-2);
}

.article-body ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.article-body ol {
    list-style: none;
    counter-reset: ol-counter;
}

.article-body ol li {
    position: relative;
    padding-left: var(--space-8);
    margin-bottom: var(--space-3);
    counter-increment: ol-counter;
}

.article-body ol li::before {
    content: counter(ol-counter);
    position: absolute;
    left: 0;
    top: 1px;
    width: 24px;
    height: 24px;
    background: var(--color-primary);
    color: #FFFFFF;
    font-size: var(--text-xs);
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* Nested lists */
.article-body li ul,
.article-body li ol {
    margin-top: var(--space-2);
    margin-bottom: 0;
}

.article-body hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin-block: var(--space-8);
}

/* Blockquote */
.article-body blockquote {
    border-left: 4px solid var(--color-primary);
    background: var(--color-primary-light);
    padding: var(--space-4) var(--space-6);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-block: var(--space-6);
    color: var(--color-fg);
}

.article-body blockquote p {
    margin-bottom: 0;
    font-style: italic;
}

/* Code */
.article-body code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--color-card-bg);
    color: var(--color-fg);
    padding: 0.15em 0.4em;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.article-body pre {
    background: #1a1f2e;
    color: #e2e8f0;
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    overflow-x: auto;
    margin-block: var(--space-6);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.article-body pre code {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    background: transparent;
    color: inherit;
    padding: 0;
    border: none;
    border-radius: 0;
    line-height: 1.7;
}

/* Copy code button */
.code-copy-btn {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    padding: var(--space-1) var(--space-3);
    font-family: var(--font-sans);
    font-size: var(--text-xs);
    font-weight: 600;
    color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.code-copy-btn:hover {
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.16);
}

.code-copy-btn.is-copied {
    color: var(--color-green);
    border-color: var(--color-green);
}

/* Tables */
.article-body table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
    margin-block: var(--space-6);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.article-body thead {
    background: var(--color-card-bg);
}

.article-body th {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    font-weight: 700;
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-muted);
    border-bottom: 1px solid var(--color-border);
}

.article-body td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

.article-body tr:last-child td {
    border-bottom: none;
}

.article-body tr:nth-child(even) {
    background: rgba(0, 0, 0, 0.015);
}

/* Images in prose */
.article-body figure {
    margin-block: var(--space-6);
}

.article-body figure img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.article-body figcaption {
    text-align: center;
    font-size: var(--text-xs);
    color: var(--color-muted);
    margin-top: var(--space-2);
}


/* --------------------------------------------------------------------------
   13. GHOST CARD STYLES
   -------------------------------------------------------------------------- */

/* Base card */
.gh-content .kg-card {
    margin-block: var(--space-6);
}

/* Image card */
.kg-image-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.kg-image-card img {
    width: 100%;
    height: auto;
    display: block;
}

/* Width variants */
.kg-width-wide {
    position: relative;
    width: min(100% + 6rem, var(--max-width));
    margin-inline: calc(50% - min(50% + 3rem, var(--max-width) / 2));
}

.kg-width-full {
    position: relative;
    width: 100vw;
    margin-inline: calc(50% - 50vw);
}

/* Gallery */
.kg-gallery-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.kg-gallery-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-2);
}

.kg-gallery-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

/* Callout card */
.kg-callout-card {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-5);
    background: var(--color-primary-light);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.kg-callout-card-yellow {
    background: #FFFBEB;
    border-color: var(--color-amber);
}

.kg-callout-card-red {
    background: #FEF2F2;
    border-color: var(--color-destructive);
}

.kg-callout-card-green {
    background: #F0FDF4;
    border-color: var(--color-green);
}

.kg-callout-emoji {
    font-size: 1.25rem;
    line-height: 1.6;
    flex-shrink: 0;
}

.kg-callout-text {
    font-size: var(--text-sm);
    line-height: 1.7;
    color: var(--color-fg);
}

.kg-callout-text p {
    margin-bottom: 0;
}

/* Bookmark card */
.kg-bookmark-card {
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.kg-bookmark-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.kg-bookmark-container {
    display: flex;
    align-items: stretch;
    text-decoration: none;
    color: var(--color-fg);
}

.kg-bookmark-content {
    padding: var(--space-4);
    flex: 1;
    min-width: 0;
}

.kg-bookmark-title {
    font-size: var(--text-md);
    font-weight: 700;
    color: var(--color-fg);
    margin-bottom: var(--space-1);
}

.kg-bookmark-description {
    font-size: var(--text-sm);
    color: var(--color-muted);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.kg-bookmark-metadata {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.kg-bookmark-icon {
    width: 16px;
    height: 16px;
    border-radius: 3px;
    flex-shrink: 0;
}

.kg-bookmark-author,
.kg-bookmark-publisher {
    font-size: var(--text-xs);
    color: var(--color-muted);
}

.kg-bookmark-thumbnail {
    flex-shrink: 0;
    width: 140px;
    min-height: 80px;
    overflow: hidden;
}

.kg-bookmark-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Toggle card (FAQ/accordion) */
.kg-toggle-card {
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.kg-toggle-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    cursor: pointer;
    user-select: none;
    background: var(--color-card-bg);
    transition: background var(--transition-fast);
}

.kg-toggle-heading:hover {
    background: var(--color-primary-light);
}

.kg-toggle-heading h4 {
    font-size: var(--text-md);
    font-weight: 700;
    color: var(--color-fg);
    margin: 0;
}

.kg-toggle-heading-text {
    flex: 1;
}

.kg-toggle-card-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    background: var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.kg-toggle-card-icon svg {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-fast);
}

.kg-toggle-card[open] .kg-toggle-card-icon {
    background: var(--color-primary);
    color: #FFFFFF;
}

.kg-toggle-card[open] .kg-toggle-card-icon svg {
    transform: rotate(180deg);
}

.kg-toggle-content {
    padding: var(--space-5);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
}

.kg-toggle-content p {
    margin-bottom: var(--space-3);
}

.kg-toggle-content p:last-child {
    margin-bottom: 0;
}

/* Video card */
.kg-video-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #000;
    aspect-ratio: 16 / 9;
}

.kg-video-card video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Embed card */
.kg-embed-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.kg-embed-card iframe {
    width: 100%;
    min-height: 400px;
    display: block;
}

/* File card */
.kg-file-card {
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.kg-file-card-container {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    text-decoration: none;
    color: var(--color-fg);
    transition: background var(--transition-fast);
}

.kg-file-card-container:hover {
    background: var(--color-card-bg);
    color: var(--color-fg);
}

.kg-file-card-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--color-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.kg-file-card-contents {
    flex: 1;
}

.kg-file-card-title {
    font-weight: 700;
    font-size: var(--text-sm);
}

.kg-file-card-caption {
    font-size: var(--text-xs);
    color: var(--color-muted);
}

.kg-file-card-metadata {
    font-size: var(--text-xs);
    color: var(--color-muted);
}

/* Button card */
.kg-button-card {
    text-align: center;
    padding-block: var(--space-2);
}

.kg-btn {
    display: inline-flex;
    align-items: center;
    padding: var(--space-3) var(--space-6);
    background: var(--color-primary);
    color: #FFFFFF;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
}

.kg-btn:hover {
    background: var(--color-primary-dark);
    color: #FFFFFF;
    box-shadow: 0 4px 12px rgba(56, 152, 236, 0.3);
}


/* --------------------------------------------------------------------------
   14. TABLE OF CONTENTS SIDEBAR
   -------------------------------------------------------------------------- */

.toc-sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--space-6));
    max-height: calc(100vh - var(--header-height) - var(--space-12));
    overflow-y: auto;
}

.toc-sidebar-inner {
    background: var(--color-card-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.toc-sidebar-title {
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-muted);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
}

.toc-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.toc-item {
    line-height: 1.4;
}

.toc-item--h3 {
    padding-left: var(--space-4);
}

.toc-link {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-muted);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    border-left: 2px solid transparent;
    transition: all var(--transition-fast);
    line-height: 1.5;
}

.toc-link:hover {
    color: var(--color-fg);
    background: var(--color-bg);
    border-color: var(--color-border);
}

.toc-link.is-active {
    color: var(--color-primary);
    font-weight: 600;
    background: var(--color-primary-light);
    border-color: var(--color-primary);
}

.toc-sidebar-footer {
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-border);
}

.toc-support-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-muted);
    transition: color var(--transition-fast);
}

.toc-support-link:hover {
    color: var(--color-primary);
}

/* TOC empty state — hide if no headings */
.toc-sidebar[data-empty] {
    display: none;
}


/* --------------------------------------------------------------------------
   15. ARTICLE FEEDBACK
   -------------------------------------------------------------------------- */

.article-feedback {
    margin-top: var(--space-10);
    padding: var(--space-6);
    background: var(--color-card-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
}

.article-feedback-title {
    font-size: var(--text-md);
    font-weight: 700;
    color: var(--color-fg);
    margin-bottom: var(--space-4);
}

.article-feedback-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
}

.feedback-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-5);
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 1.5px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-muted);
    transition: all var(--transition-fast);
}

.feedback-btn--yes:hover {
    background: #F0FDF4;
    border-color: var(--color-green);
    color: #166534;
}

.feedback-btn--yes.is-selected {
    background: #F0FDF4;
    border-color: var(--color-green);
    color: #166534;
}

.feedback-btn--no:hover {
    background: #FEF2F2;
    border-color: var(--color-destructive);
    color: #991B1B;
}

.feedback-btn--no.is-selected {
    background: #FEF2F2;
    border-color: var(--color-destructive);
    color: #991B1B;
}

.article-feedback-thanks {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-green);
}

.article-feedback-thanks[hidden] {
    display: none;
}


/* --------------------------------------------------------------------------
   16. ARTICLE TAGS
   -------------------------------------------------------------------------- */

.article-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}

.article-tags-label {
    font-size: var(--text-sm);
    color: var(--color-muted);
    font-weight: 500;
}

.article-tag-chip {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-muted);
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.article-tag-chip:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}


/* --------------------------------------------------------------------------
   17. AUTHOR BIO
   -------------------------------------------------------------------------- */

.article-author-bio {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    margin-top: var(--space-8);
    padding: var(--space-5);
    background: var(--color-card-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.article-author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 2px solid var(--color-border);
}

.article-author-avatar--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-size: var(--text-lg);
    font-weight: 700;
}

.article-author-name {
    font-size: var(--text-md);
    font-weight: 700;
    color: var(--color-fg);
    display: block;
    margin-bottom: var(--space-1);
}

.article-author-name:hover {
    color: var(--color-primary);
}

.article-author-bio-text {
    font-size: var(--text-sm);
    color: var(--color-muted);
    line-height: 1.6;
}


/* --------------------------------------------------------------------------
   18. PREV / NEXT NAVIGATION
   -------------------------------------------------------------------------- */

.article-prev-next {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}

.article-prev-next-link {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-4);
    background: var(--color-card-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    color: var(--color-fg);
}

.article-prev-next-link:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    color: var(--color-fg);
}

.article-prev-next-link--next {
    text-align: right;
}

.article-prev-next-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-muted);
}

.article-prev-next-link--next .article-prev-next-label {
    justify-content: flex-end;
}

.article-prev-next-title {
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--color-fg);
    line-height: 1.4;
}

.article-prev-next-link:hover .article-prev-next-title {
    color: var(--color-primary);
}


/* --------------------------------------------------------------------------
   19. RELATED ARTICLES
   -------------------------------------------------------------------------- */

.article-related {
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-10);
}


/* --------------------------------------------------------------------------
   20. TAG PAGE
   -------------------------------------------------------------------------- */

.tag-page {
    padding-top: var(--space-10);
    padding-bottom: var(--space-16);
}

.tag-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-5);
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-border);
}

.tag-header-icon {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    background: var(--color-primary-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.tag-header-icon-emoji {
    font-size: 2rem;
}

.tag-header-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tag-header-title {
    font-size: var(--text-4xl);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--color-fg);
    margin-bottom: var(--space-2);
}

.tag-header-description {
    font-size: var(--text-md);
    color: var(--color-muted);
    line-height: 1.6;
    margin-bottom: var(--space-3);
}

.tag-header-count {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-muted);
    font-weight: 500;
}

/* Tag articles list */
.tag-articles-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-bottom: var(--space-8);
}

.tag-article-item {
    border-bottom: 1px solid var(--color-border);
}

.tag-article-item:first-child {
    border-top: 1px solid var(--color-border);
}

.tag-article-link {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-5) 0;
    text-decoration: none;
    color: var(--color-fg);
    transition: all var(--transition-fast);
}

.tag-article-link:hover {
    color: var(--color-fg);
}

.tag-article-link:hover .tag-article-title {
    color: var(--color-primary);
}

.tag-article-link:hover .tag-article-arrow {
    color: var(--color-primary);
    transform: translateX(4px);
}

.tag-article-body {
    flex: 1;
    min-width: 0;
}

.tag-article-title {
    font-size: var(--text-md);
    font-weight: 700;
    color: var(--color-fg);
    line-height: 1.4;
    margin-bottom: var(--space-2);
    transition: color var(--transition-fast);
}

.tag-article-excerpt {
    font-size: var(--text-sm);
    color: var(--color-muted);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: var(--space-2);
}

.tag-article-meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    color: var(--color-muted);
}

.tag-article-meta-sep {
    color: var(--color-border);
}

.tag-article-arrow {
    flex-shrink: 0;
    color: var(--color-border);
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.tag-empty {
    text-align: center;
    padding: var(--space-16) var(--space-6);
    color: var(--color-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
}

.tag-empty svg {
    opacity: 0.3;
}

.tag-empty-title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-fg);
}

.tag-empty-text {
    font-size: var(--text-md);
    max-width: 360px;
}

.tag-other-categories {
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-10);
}


/* --------------------------------------------------------------------------
   21. AUTHOR PAGE
   -------------------------------------------------------------------------- */

.author-page {
    padding-top: var(--space-10);
    padding-bottom: var(--space-16);
}

.author-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-6);
    margin-bottom: var(--space-10);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-border);
}

.author-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 3px solid var(--color-border);
}

.author-avatar--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-size: var(--text-3xl);
    font-weight: 700;
}

.author-name {
    font-size: var(--text-3xl);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--color-fg);
    margin-bottom: var(--space-2);
}

.author-bio {
    font-size: var(--text-md);
    color: var(--color-muted);
    line-height: 1.6;
    margin-bottom: var(--space-4);
    max-width: 600px;
}

.author-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-muted);
}

.author-meta-item {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.author-meta-link {
    color: var(--color-primary);
}

.author-meta-link:hover {
    color: var(--color-primary-dark);
}

.author-posts {
    margin-top: var(--space-4);
}


/* --------------------------------------------------------------------------
   22. PAGINATION
   -------------------------------------------------------------------------- */

.pagination {
    margin-top: var(--space-8);
}

.pagination-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-fg);
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.pagination-btn:hover:not(.pagination-btn--disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.pagination-btn--disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.pagination-info {
    font-size: var(--text-sm);
    color: var(--color-muted);
    font-weight: 500;
}


/* --------------------------------------------------------------------------
   23. ERROR PAGES
   -------------------------------------------------------------------------- */

.error-page {
    padding: var(--space-20) 0;
}

.error-page-inner {
    max-width: 560px;
    margin-inline: auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
}

.error-illustration {
    margin-bottom: var(--space-4);
}

.error-code {
    font-size: 5rem;
    font-weight: 900;
    color: var(--color-primary);
    line-height: 1;
    letter-spacing: -0.05em;
    opacity: 0.3;
}

.error-title {
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--color-fg);
    letter-spacing: -0.02em;
}

.error-description {
    font-size: var(--text-md);
    color: var(--color-muted);
    line-height: 1.6;
}

.error-search {
    width: 100%;
    margin-block: var(--space-2);
}

.error-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: center;
    margin-top: var(--space-2);
}

.error-popular-links {
    margin-top: var(--space-8);
    width: 100%;
    text-align: left;
}

.error-popular-title {
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-muted);
    margin-bottom: var(--space-4);
}

.error-popular-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.error-popular-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-muted);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.error-popular-link:hover {
    background: var(--color-card-bg);
    color: var(--color-primary);
}


/* --------------------------------------------------------------------------
   25. RESPONSIVE — TABLET (≤1024px)
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
    .article-page .article-layout {
        grid-template-columns: 1fr;
    }

    .toc-sidebar {
        display: none;
    }

    .help-contact-cta-inner {
        flex-direction: column;
        text-align: center;
    }

    .help-contact-cta-actions {
        width: 100%;
        display: flex;
        justify-content: center;
    }

    .site-footer-top {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
}


/* --------------------------------------------------------------------------
   26. RESPONSIVE — MOBILE (≤768px)
   -------------------------------------------------------------------------- */

@media (max-width: 768px) {
    :root {
        --header-height: 56px;
    }

    .container {
        padding-inline: var(--space-4);
    }

    /* Header mobile */
    .site-nav {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: var(--space-4) var(--space-4) var(--space-6);
        box-shadow: var(--shadow-md);
        z-index: 99;
    }

    .site-nav.is-open {
        display: block;
    }

    .site-nav-list {
        flex-direction: column;
        gap: var(--space-1);
    }

    .site-nav-link {
        padding: var(--space-3) var(--space-4);
        font-size: var(--text-md);
        display: block;
    }

    .site-nav-mobile-toggle {
        display: flex;
        margin-left: auto;
    }

    .site-header-right {
        gap: var(--space-2);
    }

    .header-search-toggle span {
        display: none;
    }

    .site-header-inner {
        gap: var(--space-4);
    }

    /* Hero */
    .help-hero {
        padding: var(--space-12) 0 var(--space-10);
    }

    .help-hero-title {
        font-size: var(--text-4xl);
    }

    .help-hero-subtitle {
        font-size: var(--text-md);
    }

    /* Category grid */
    .help-category-grid {
        grid-template-columns: 1fr;
    }

    /* Article grid */
    .article-grid {
        grid-template-columns: 1fr;
    }

    /* Article page */
    .article-title {
        font-size: var(--text-3xl);
    }

    .article-prev-next {
        grid-template-columns: 1fr;
    }

    /* Tag page */
    .tag-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .tag-header-title {
        font-size: var(--text-3xl);
    }

    /* Author page */
    .author-header {
        flex-direction: column;
    }

    /* Contact CTA */
    .help-contact-cta-icon {
        display: none;
    }

    /* Footer */
    .site-footer-nav {
        grid-template-columns: repeat(2, 1fr);
    }

    .site-footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: var(--space-2);
    }

    /* Section title */
    .section-title {
        font-size: var(--text-xl);
    }

    /* Pagination */
    .pagination-info {
        display: none;
    }
}

@media (max-width: 480px) {
    .help-hero-title {
        font-size: var(--text-3xl);
    }

    .article-feedback-actions {
        flex-direction: column;
    }

    .error-actions {
        flex-direction: column;
        width: 100%;
    }

    .error-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .site-footer-nav {
        grid-template-columns: 1fr;
    }
}


/* --------------------------------------------------------------------------
   27. PRINT STYLES
   -------------------------------------------------------------------------- */

@media print {
    .site-header,
    .site-footer,
    .toc-sidebar,
    .article-prev-next,
    .article-feedback,
    .article-related,
    .help-contact-cta,
    .breadcrumbs,
    .article-author-bio {
        display: none !important;
    }

    body {
        font-size: 12pt;
        color: #000;
        background: #fff;
    }

    .article-title {
        font-size: 22pt;
    }

    .article-body a {
        text-decoration: none;
        color: #000;
    }

    .article-body a::after {
        content: ' (' attr(href) ')';
        font-size: 9pt;
        color: #555;
    }

    .article-body pre {
        background: #f5f5f5;
        color: #000;
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }

    .article-body table {
        page-break-inside: avoid;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }

    .article-layout {
        grid-template-columns: 1fr;
    }
}


/* --------------------------------------------------------------------------
   28. UTILITIES
   -------------------------------------------------------------------------- */

[hidden] {
    display: none !important;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--color-card-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-muted);
}

/* Selection */
::selection {
    background: rgba(56, 152, 236, 0.15);
    color: var(--color-fg);
}



[hidden] {
    display: none !important;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--color-card-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-muted);
}

/* Selection */
::selection {
    background: rgba(56, 152, 236, 0.15);
    color: var(--color-fg);
}