/* ============================================
   TECNONUCLEOUS — Digital Brutalism Ghost Theme
   ============================================ */

/* ── 1. Design Tokens ────────────────────── */
:root {
  /* Colors — Dark Mode (default) */
  --color-bg: #0A0A0E;
  --color-surface: #1A1A24;
  --color-surface-elevated: #22222E;
  --color-primary: #00FF88;
  --color-primary-dim: #00CC6A;
  --color-secondary: #22D3EE;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-text: #E2E8F0;
  --color-text-muted: #6B7280;
  --color-text-dim: #4B5563;
  --color-border: #2A2A3E;
  --color-border-hover: #3A3A52;

  /* Typography */
  --font-heading: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', monospace;

  /* Spacing — 4px base */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* Layout */
  --container-max: 1280px;
  --container-padding: 64px;
  --grid-gutter: 24px;

  /* Borders & Shadows */
  --border-width: 2px;
  --border-radius: 0;
  --shadow-hard: 4px 4px 0px rgba(0, 0, 0, 0.4);
  --shadow-hard-hover: 6px 6px 0px rgba(0, 0, 0, 0.5);

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

/* Light Mode */
:root[data-theme="light"] {
  --color-bg: #F8F9FA;
  --color-surface: #FFFFFF;
  --color-surface-elevated: #F1F3F5;
  --color-primary: #059669;
  --color-primary-dim: #047857;
  --color-secondary: #0E7490;
  --color-warning: #D97706;
  --color-error: #DC2626;
  --color-text: #111827;
  --color-text-muted: #6B7280;
  --color-text-dim: #9CA3AF;
  --color-border: #D1D5DB;
  --color-border-hover: #9CA3AF;
  --shadow-hard: 4px 4px 0px rgba(0, 0, 0, 0.1);
  --shadow-hard-hover: 6px 6px 0px rgba(0, 0, 0, 0.15);
}

/* ── 3. Reset ────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

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

ul, ol {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

pre, code {
  font-family: var(--font-mono);
}

/* ── 4. Skip Link ────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-primary);
  color: var(--color-bg);
  padding: var(--space-2) var(--space-4);
  z-index: 10000;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
}
.skip-link:focus {
  top: var(--space-4);
}

/* ── 5. Container & Grid ─────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.grid {
  display: grid;
  gap: var(--grid-gutter);
}

.grid--sidebar {
  grid-template-columns: 2fr 1fr;
}

.main-content {
  min-height: 60vh;
}

/* ── 6. Typography ───────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.35rem, 3vw, 1.75rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); }
h4 { font-size: 1rem; }

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

/* ── 7. Header ───────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: var(--border-width) solid var(--color-border);
  padding: var(--space-4) 0;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

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

.site-header__logo-link {
  display: block;
  flex-shrink: 0;
}

.site-header__logo {
  display: block;
  height: 32px;
  width: auto;
}

.site-header__title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  text-decoration: none;
}
.site-header__title:hover {
  color: var(--color-primary);
}

.site-header__status {
  font-size: 0.625rem;
}

.status-badge {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-1) var(--space-2);
  border: 1px solid;
}
.status-badge--active {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* Navigation */
.site-header__nav {
  display: flex;
  align-items: center;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-2);
}
.nav-toggle__bar {
  width: 20px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--transition-fast);
}

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

.nav-list__link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
  border: var(--border-width) solid transparent;
  transition: all var(--transition-fast);
  display: block;
}
.nav-list__link:hover,
.nav-list__link--active {
  color: var(--color-primary);
  border-color: var(--color-border);
  background: var(--color-surface);
}
.nav-list__link--member {
  color: var(--color-secondary);
}

/* Header Actions */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.search-toggle,
.theme-toggle {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2);
  border: var(--border-width) solid transparent;
  transition: all var(--transition-fast);
}
.search-toggle:hover,
.theme-toggle:hover {
  color: var(--color-primary);
  border-color: var(--color-border);
}
.search-toggle svg {
  width: 14px;
  height: 14px;
}

.theme-toggle__icon--dark,
.theme-toggle__icon--light {
  font-size: 0.625rem;
}
:root[data-theme="dark"] .theme-toggle__icon--light { display: none; }
:root[data-theme="light"] .theme-toggle__icon--dark { display: none; }

/* ── 8. Hero ─────────────────────────────── */
.hero {
  padding: var(--space-12) 0 var(--space-10);
}

.hero__card {
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  box-shadow: var(--shadow-hard);
  position: relative;
  overflow: hidden;
}

.hero__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 400px;
}

.hero__image {
  position: relative;
  overflow: hidden;
}
.hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__body {
  padding: var(--space-10);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-4);
}

.hero__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}
.hero__label::before {
  content: '/';
}

.hero__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero__title {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
}
.hero__title a {
  color: var(--color-text);
  text-decoration: none;
}
.hero__title a:hover {
  color: var(--color-primary);
}

.hero__excerpt {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.hero__tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

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

/* ── 9. Buttons ──────────────────────────── */
.btn {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-3) var(--space-6);
  border: var(--border-width) solid;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn--primary {
  background: var(--color-primary);
  color: #000;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hard);
}
.btn--primary:hover {
  background: var(--color-primary-dim);
  border-color: var(--color-primary-dim);
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0px rgba(0,0,0,0.3);
  color: #000;
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
}
.btn--outline:hover {
  border-color: var(--color-primary);
  background: var(--color-surface);
  color: var(--color-primary);
}

.btn--load-more {
  background: var(--color-surface);
  color: var(--color-text-muted);
  border-color: var(--color-border);
  box-shadow: var(--shadow-hard);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: var(--space-4) var(--space-10);
}
.btn--load-more:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0px rgba(0,0,0,0.2);
}

.btn--load-more:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ── 10. Tags ────────────────────────────── */
.tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}
.tag:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* Category-based tag colors */
.tag--dev,
.tag--development { color: var(--color-primary); border-color: var(--color-primary); }
.tag--sudo,
.tag--sysadmin { color: var(--color-warning); border-color: var(--color-warning); }
.tag--hardware { color: var(--color-secondary); border-color: var(--color-secondary); }
.tag--networking { color: #A78BFA; border-color: #A78BFA; }
.tag--tutorial { color: #FB923C; border-color: #FB923C; }
.tag--news { color: #F472B6; border-color: #F472B6; }

/* ── 11. Post Cards ──────────────────────── */
.post-card {
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  box-shadow: var(--shadow-hard);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  position: relative;
}
.post-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard-hover);
  border-color: var(--color-primary);
}

.post-card__image {
  overflow: hidden;
  aspect-ratio: 3 / 2;
}
.post-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}
.post-card:hover .post-card__image img {
  transform: scale(1.03);
}

.post-card__body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}

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

.post-card__title {
  font-size: 1.125rem;
}
.post-card__title a {
  color: var(--color-text);
  text-decoration: none;
}
.post-card__title a:hover {
  color: var(--color-primary);
}

.post-card__excerpt {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  flex: 1;
}

.post-card__meta {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.post-card__sep {
  color: var(--color-border);
}

.post-card__link {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: auto;
}
.post-card__link:hover {
  color: var(--color-secondary);
}

/* ── 12. Filter Bar ──────────────────────── */
.filter-bar {
  padding: var(--space-6) 0;
  border-bottom: var(--border-width) solid var(--color-border);
}

.filter-bar__nav {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
  align-items: center;
}

.filter-bar__item {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-4);
  border: var(--border-width) solid var(--color-border);
  transition: all var(--transition-fast);
}
.filter-bar__item:hover,
.filter-bar__item--active {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-surface);
}

.filter-bar__count {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-text-dim);
  margin-left: var(--space-6);
}

/* ── 13. Post Grid Section ───────────────── */
.post-grid {
  padding: var(--space-10) 0;
}

.post-grid__header {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.post-grid__title {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

.post-grid__count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

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

.post-grid__actions {
  margin-top: var(--space-10);
  text-align: center;
}

/* ── 14. Single Post ─────────────────────── */
.post-article {
  padding: var(--space-10) 0;
}

.post-article__header {
  margin-bottom: var(--space-8);
}

.post-article__tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

.post-article__title {
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  margin-bottom: var(--space-4);
  line-height: 1.1;
}

.post-article__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex-wrap: wrap;
}

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

.post-article__featured-image {
  margin: 0 0 var(--space-10);
  border: var(--border-width) solid var(--color-border);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.post-article__featured-image img {
  width: 100%;
}

/* Koenig Editor Image Widths */
.kg-width-wide {
  width: 100%;
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
}

.kg-width-full {
  width: 100vw;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
}

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

/* Ghost Content Styling */
.post-article__content,
.page-article__content {
  font-size: 1.0625rem;
  line-height: 1.75;
  max-width: 720px;
  margin: 0 auto;
  text-align: justify;
}

.post-article__content p,
.page-article__content p {
  margin-bottom: var(--space-6);
}

.post-article__content h2,
.page-article__content h2 {
  margin-top: var(--space-12);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: var(--border-width) solid var(--color-border);
}

.post-article__content h3,
.page-article__content h3 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
}

.post-article__content ul,
.page-article__content ul,
.post-article__content ol,
.page-article__content ol {
  margin: var(--space-4) 0 var(--space-6);
  padding-left: var(--space-6);
}

.post-article__content ul { list-style-type: '> '; }
.post-article__content ol { list-style-type: decimal; }

.post-article__content li {
  margin-bottom: var(--space-2);
}

.post-article__content blockquote {
  border-left: 4px solid var(--color-primary);
  padding: var(--space-4) var(--space-6);
  margin: var(--space-6) 0;
  background: var(--color-surface);
  font-style: italic;
  color: var(--color-text-muted);
}

.post-article__content blockquote::before {
  content: '// ';
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-primary);
  font-style: normal;
}

/* Image captions */
.post-article__content figure,
.page-article__content figure {
  margin: var(--space-8) 0;
  border: var(--border-width) solid var(--color-border);
}

.kg-embed-card {
  border: none !important;
  display: flex;
  justify-content: center;
  margin-left: auto !important;
  margin-right: auto !important;
}

.post-article__content figcaption,
.page-article__content figcaption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  padding: var(--space-3) var(--space-4);
  border-top: var(--border-width) solid var(--color-border);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Horizontal rules */
.post-article__content hr,
.page-article__content hr {
  border: none;
  border-top: var(--border-width) solid var(--color-border);
  margin: var(--space-10) 0;
}

/* Links in content */
.post-article__content a,
.page-article__content a {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

/* Tables */
.post-article__content table,
.page-article__content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
}
.post-article__content th,
.page-article__content th,
.post-article__content td,
.page-article__content td {
  border: var(--border-width) solid var(--color-border);
  padding: var(--space-3) var(--space-4);
  text-align: left;
}
.post-article__content th,
.page-article__content th {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-surface);
}

/* ── 15. Terminal Code Blocks ────────────── */
.post-article__content pre,
.page-article__content pre {
  background: #0D1117;
  border: var(--border-width) solid var(--color-border);
  margin: var(--space-6) 0;
  position: relative;
  overflow-x: auto;
}

.post-article__content pre::before {
  content: 'TERMINAL';
  display: block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-text-dim);
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  letter-spacing: 0.05em;
}

.post-article__content pre code,
.page-article__content pre code {
  display: block;
  padding: var(--space-6);
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-primary);
  white-space: pre;
  counter-reset: line;
}

.post-article__content pre code .line::before {
  counter-increment: line;
  content: counter(line);
  display: inline-block;
  width: 2ch;
  margin-right: var(--space-4);
  color: var(--color-text-dim);
  text-align: right;
  user-select: none;
}

/* Copy button */
.copy-btn {
  position: absolute;
  top: var(--space-1);
  right: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-text-dim);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-1) var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 1;
}
.copy-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.copy-btn--success {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* Inline code */
.post-article__content :not(pre) > code,
.page-article__content :not(pre) > code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  color: var(--color-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 0.1em 0.4em;
}

/* ── 16. Article Footer ──────────────────── */
.post-article__footer {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: var(--border-width) solid var(--color-border);
}

/* ── 17. Author Card ─────────────────────── */
.author-card {
  display: flex;
  gap: var(--space-6);
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  box-shadow: var(--shadow-hard);
  padding: var(--space-6);
}

.author-card__avatar {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  border: var(--border-width) solid var(--color-border);
  overflow: hidden;
}
.author-card__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-card__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.author-card__name {
  font-size: 1rem;
  color: var(--color-text);
}

.author-card__name a {
  color: var(--color-text);
  text-decoration: none;
}
.author-card__name a:hover {
  color: var(--color-primary);
}

.author-card__byline {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.author-card__bio {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ── 18. Engagement Bar ──────────────────── */
.engagement-bar {
  display: flex;
  gap: var(--space-8);
  padding: var(--space-6) 0;
  margin: var(--space-8) 0;
  border-top: var(--border-width) solid var(--color-border);
  border-bottom: var(--border-width) solid var(--color-border);
}

.engagement-bar__action {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: all var(--transition-fast);
  cursor: pointer;
  padding: var(--space-2) var(--space-3);
  border: var(--border-width) solid transparent;
}
.engagement-bar__action:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.engagement-bar__action--liked {
  color: var(--color-primary);
}
.engagement-bar__action svg {
  width: 16px;
  height: 16px;
}

/* ── 19. Breadcrumbs ─────────────────────── */
.breadcrumbs {
  padding: var(--space-6) 0 var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-dim);
  display: flex;
  gap: var(--space-2);
  align-items: center;
  flex-wrap: wrap;
}
.breadcrumbs a {
  color: var(--color-text-muted);
  text-decoration: none;
}
.breadcrumbs a:hover {
  color: var(--color-primary);
}
.breadcrumbs__sep {
  color: var(--color-border);
}

/* ── 20. Pagination ──────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-10) 0;
}

.pagination__arrow,
.pagination__page {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-4);
  border: var(--border-width) solid var(--color-border);
  transition: all var(--transition-fast);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.pagination__arrow:hover,
.pagination__page:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-surface);
}
.pagination__page--current {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-surface);
}

/* ── 21. Related Posts ───────────────────── */
.related-posts {
  padding: var(--space-10) 0;
}

.related-posts__title {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-6);
}

.related-posts__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gutter);
}

/* ── 22. Newsletter CTA ──────────────────── */
.newsletter-cta {
  padding: var(--space-10) 0;
}

.newsletter-cta__content {
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-primary);
  box-shadow: var(--shadow-hard);
  padding: var(--space-10);
  text-align: center;
}

.newsletter-cta__prompt {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-primary);
  display: block;
  margin-bottom: var(--space-4);
}

.newsletter-cta__title {
  font-size: 1.5rem;
  margin-bottom: var(--space-3);
}

.newsletter-cta__subtitle {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.newsletter-cta__input-group {
  display: flex;
  max-width: 480px;
  margin: 0 auto;
  border: var(--border-width) solid var(--color-border);
}

.input-prompt {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-primary);
  background: var(--color-bg);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  border-right: var(--border-width) solid var(--color-border);
}

.newsletter-cta__input {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  background: var(--color-bg);
  border: none;
  color: var(--color-text);
  padding: var(--space-3) var(--space-4);
  outline: none;
}
.newsletter-cta__input::placeholder {
  color: var(--color-text-dim);
}

.newsletter-cta__input-group .btn {
  border-left: var(--border-width) solid var(--color-border);
}

.newsletter-cta__error {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-error);
  margin-top: var(--space-3);
}

.newsletter-cta__success {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-primary);
  margin-top: var(--space-3);
}

/* ── 23. Search Overlay ──────────────────── */
.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(10, 10, 14, 0.95);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}
.search-overlay--active {
  opacity: 1;
  visibility: visible;
}

.search-overlay__inner {
  width: 100%;
  max-width: 640px;
  padding: 0 var(--space-4);
}

.search-overlay__input {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  background: transparent;
  border: none;
  border-bottom: var(--border-width) solid var(--color-border);
  color: var(--color-text);
  padding: var(--space-4) 0;
  outline: none;
  transition: border-color var(--transition-fast);
}
.search-overlay__input:focus {
  border-color: var(--color-primary);
}
.search-overlay__input::placeholder {
  color: var(--color-text-dim);
}

.search-overlay__prompt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.search-overlay__results {
  margin-top: var(--space-6);
  max-height: 50vh;
  overflow-y: auto;
}

.search-overlay__result {
  display: block;
  padding: var(--space-4);
  border: var(--border-width) solid transparent;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  text-decoration: none;
  transition: all var(--transition-fast);
}
.search-overlay__result:hover {
  border-color: var(--color-primary);
  background: var(--color-surface);
}
.search-overlay__result h3 {
  font-size: 0.9375rem;
  margin-bottom: var(--space-1);
}
.search-overlay__result span {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
}

.search-overlay__close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-4);
  border: var(--border-width) solid var(--color-border);
  transition: all var(--transition-fast);
}
.search-overlay__close:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ── 24. Tag/Author Archive ──────────────── */
.tag-archive,
.author-profile {
  padding: var(--space-10) 0;
}

/* KPI Stats */
.tag-archive__kpi {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--grid-gutter);
  margin-bottom: var(--space-8);
}

.kpi-card {
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  box-shadow: var(--shadow-hard);
  padding: var(--space-6);
}

.kpi-card__label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: var(--space-2);
}

.kpi-card__value {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-primary);
  text-transform: uppercase;
}

.kpi-card__value--tag {
  font-size: 1.125rem;
}

.kpi-card__description {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Archive Layout (list + sidebar) */
.tag-archive__layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--grid-gutter);
  margin-top: var(--space-8);
}

.tag-archive__list {
  display: flex;
  flex-direction: column;
  gap: var(--grid-gutter);
}

.tag-archive__list .post-card {
  flex-direction: row;
}
.tag-archive__list .post-card__image {
  width: 280px;
  flex-shrink: 0;
  aspect-ratio: 3/2;
}
.tag-archive__list .post-card__body {
  flex: 1;
}

/* ── 25. Sidebar ─────────────────────────── */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--grid-gutter);
}

/* Tag Cloud */
.tag-cloud {
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  box-shadow: var(--shadow-hard);
  padding: var(--space-6);
}

.tag-cloud__title {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.tag-cloud__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag-cloud__item {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}
.tag-cloud__item:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.tag-cloud__item--large {
  font-size: 0.875rem;
  border-width: var(--border-width);
}

/* ── 26. Author Profile ──────────────────── */
.author-profile__terminal {
  margin-bottom: var(--space-10);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-surface-elevated);
  padding: var(--space-3) var(--space-4);
  border: var(--border-width) solid var(--color-border);
  border-bottom: none;
}

.terminal-bar__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid var(--color-text-dim);
}
.terminal-bar__dot:nth-child(1) { background: var(--color-error); border-color: var(--color-error); }
.terminal-bar__dot:nth-child(2) { background: var(--color-warning); border-color: var(--color-warning); }
.terminal-bar__dot:nth-child(3) { background: var(--color-primary); border-color: var(--color-primary); }

.terminal-bar__title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-dim);
  margin-left: var(--space-2);
  letter-spacing: 0.05em;
}

.terminal-body {
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  box-shadow: var(--shadow-hard);
  padding: var(--space-8);
  word-break: break-all;
  overflow-wrap: break-word;
  overflow-x: auto;
}

.author-profile__header {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
  margin-bottom: var(--space-6);
}

.author-profile__avatar {
  width: 100px;
  height: 100px;
  border: var(--border-width) solid var(--color-border);
  flex-shrink: 0;
}

.author-profile__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-profile__name {
  font-size: 1.5rem;
  margin-bottom: var(--space-2);
}

.author-profile__uuid {
  font-size: 0.6875rem;
  color: var(--color-text-dim);
  display: block;
  margin-bottom: var(--space-3);
}

.author-profile__status {
  font-size: 0.75rem;
}

.author-profile__manifesto {
  border-top: var(--border-width) solid var(--color-border);
  padding-top: var(--space-6);
}

.manifesto-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-dim);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
}

/* ── 27. Page Template ───────────────────── */
.page-article {
  padding: var(--space-10) 0;
}

.page-article__title {
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  margin-bottom: var(--space-8);
}

/* ── 28. Error Page ──────────────────────── */
.error-page {
  padding: var(--space-16) 0;
}

.error-page__output {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-primary);
  line-height: 1.75;
  position: relative;
}
.error-page__output code {
  color: var(--color-text);
}

.cursor-blink {
  animation: blink 1s step-end infinite;
  color: var(--color-primary);
}

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

/* ── 29. Membership / Ghost Portal ───────── */
.gh-subscribe {
  border: var(--border-width) solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-hard);
  padding: var(--space-8);
}

.gh-subscribe input[type="email"] {
  font-family: var(--font-mono);
  background: var(--color-bg);
  border: var(--border-width) solid var(--color-border);
  color: var(--color-text);
  padding: var(--space-3) var(--space-4);
  width: 100%;
  outline: none;
}
.gh-subscribe input[type="email"]:focus {
  border-color: var(--color-primary);
}

.gh-subscribe button {
  background: var(--color-primary);
  color: #000;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: var(--border-width) solid var(--color-primary);
  padding: var(--space-3) var(--space-6);
  box-shadow: var(--shadow-hard);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.gh-subscribe button:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0px rgba(0,0,0,0.3);
}

.gh-portal-link {
  font-family: var(--font-mono);
  color: var(--color-primary);
}

.gh-post-upgrade-cta {
  border: var(--border-width) dashed var(--color-warning);
  background: var(--color-surface);
  padding: var(--space-6);
  position: relative;
}
.gh-post-upgrade-cta::before {
  content: '// RESTRICTED_CONTENT';
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-warning);
  margin-bottom: var(--space-4);
  display: block;
}

.gh-comments {
  border-top: var(--border-width) solid var(--color-border);
  margin-top: var(--space-10);
  padding-top: var(--space-10);
  font-family: var(--font-body);
}

.gh-comments input,
.gh-comments textarea {
  font-family: var(--font-mono);
  background: var(--color-bg);
  border: var(--border-width) solid var(--color-border);
  color: var(--color-text);
  padding: var(--space-3) var(--space-4);
}
.gh-comments input:focus,
.gh-comments textarea:focus {
  border-color: var(--color-primary);
  outline: none;
}

/* ── 30. Footer ──────────────────────────── */
.site-footer {
  padding: var(--space-12) 0 var(--space-6);
  border-top: var(--border-width) solid var(--color-border);
  margin-top: var(--space-12);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--grid-gutter);
  margin-bottom: var(--space-10);
}

.site-footer__title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  display: block;
  margin-bottom: var(--space-3);
}
.site-footer__title:hover {
  color: var(--color-primary);
}

.site-footer__copyright {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.site-footer__status {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  margin-top: var(--space-2);
}

.site-footer__nav-title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-dim);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
}

.site-footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-footer__link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--transition-fast);
}
.site-footer__link:hover {
  color: var(--color-primary);
}

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

.site-footer__icon-link {
  color: var(--color-text-muted);
  padding: var(--space-2);
  border: var(--border-width) solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.site-footer__icon-link:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.site-footer__status-bar {
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.site-footer__status-text {
  font-size: 0.625rem;
  color: var(--color-text-dim);
  letter-spacing: 0.05em;
}

/* ── 31. Dark Mode Toggle ────────────────── */
.theme-toggle__icon {
  transition: color var(--transition-fast);
}

/* ── 32. Tail / Utilities ────────────────── */
.text-mono { font-family: var(--font-mono); }
.text-uppercase { text-transform: uppercase; letter-spacing: 0.05em; }
.text-primary { color: var(--color-primary); }
.text-muted { color: var(--color-text-muted); }
.text-dim { color: var(--color-text-dim); }

/* ── 33. Animations ──────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.post-card {
  animation: fadeIn 0.35s ease backwards;
}

.post-grid__grid .post-card:nth-child(1) { animation-delay: 0.05s; }
.post-grid__grid .post-card:nth-child(2) { animation-delay: 0.1s; }
.post-grid__grid .post-card:nth-child(3) { animation-delay: 0.15s; }
.post-grid__grid .post-card:nth-child(4) { animation-delay: 0.2s; }
.post-grid__grid .post-card:nth-child(5) { animation-delay: 0.25s; }
.post-grid__grid .post-card:nth-child(6) { animation-delay: 0.3s; }

/* ── 34. Accessibility ───────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

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

/* ── 35. Responsive ──────────────────────── */
@media (max-width: 1024px) {
  :root {
    --container-padding: 32px;
  }

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

  .hero__content {
    grid-template-columns: 1fr;
  }
  .hero__image {
    aspect-ratio: 16 / 9;
  }

  .tag-archive__layout {
    grid-template-columns: 1fr;
  }

  .tag-archive__list .post-card {
    flex-direction: column;
  }
  .tag-archive__list .post-card__image {
    width: 100%;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
  .site-footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
  }

  .post-grid__grid,
  .related-posts__grid,
  .post-grid__grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: var(--space-6) 0;
  }
  .hero__body {
    padding: var(--space-6);
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: var(--border-width) solid var(--color-border);
    flex-direction: column;
    padding: var(--space-4);
    gap: var(--space-1);
  }
  .nav-list--open {
    display: flex;
  }
  .nav-list__link {
    width: 100%;
  }

  .nav-toggle {
    display: flex;
  }

  .author-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .author-profile__header {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .engagement-bar {
    justify-content: center;
    gap: var(--space-4);
  }

  .newsletter-cta__input-group {
    flex-direction: column;
  }
  .input-prompt {
    display: none;
  }
  .newsletter-cta__input-group .btn {
    border-left: none;
    border-top: var(--border-width) solid var(--color-border);
  }

  .filter-bar__nav {
    gap: var(--space-1);
  }
  .filter-bar__item {
    font-size: 0.6875rem;
    padding: var(--space-1) var(--space-3);
  }

  .post-article__featured-image {
    margin-left: calc(-1 * var(--space-4));
    margin-right: calc(-1 * var(--space-4));
    border-left: none;
    border-right: none;
  }
}

@media (max-width: 480px) {
  .site-header__inner {
    flex-wrap: wrap;
  }
  .site-header__status {
    display: none;
  }
  .search-toggle__label {
    display: none;
  }

  .kpi-card__value {
    font-size: 1.125rem;
  }
}