/* VPNZN journal: the article, its hero and its ending share one reading axis. */
.blog-index,
.blog-article {
  color: var(--c-text);
  overflow-x: clip;
}

.blog-column,
.blog-article .reading-wrap,
.blog-article .article-hero,
.blog-article .blog-breadcrumb {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(56rem + 2 * var(--gutter));
  padding-inline: var(--gutter);
  margin-inline: auto;
}

.blog-breadcrumb {
  padding-top: 1.5rem;
  padding-bottom: 1rem;
  color: var(--c-muted);
  font-size: 0.875rem;
}

.blog-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.blog-breadcrumb li + li::before {
  content: "/";
  margin-right: 0.55rem;
  color: var(--c-faint);
}

.blog-breadcrumb a {
  color: var(--c-accent-dark);
  text-decoration: none;
}

.blog-breadcrumb a:hover {
  text-decoration: underline;
}

.blog-index-hero {
  position: relative;
  min-height: 14rem;
  padding-block: 2.5rem 3rem;
  background: var(--c-panel-2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  overflow: hidden;
}

/* A double-ring ZN seal is the only hero ornament. */
.blog-index-hero::after,
.article-hero::after {
  content: "ZN";
  position: absolute;
  top: 1.5rem;
  right: 1.75rem;
  display: grid;
  place-items: center;
  width: 4.4rem;
  height: 4.4rem;
  box-sizing: border-box;
  border: 3px double var(--c-accent);
  border-radius: 50%;
  color: var(--c-accent-dark);
  background: var(--c-panel);
  font: 700 1.15rem var(--font-mono);
  letter-spacing: 0.04em;
  transform: rotate(-11deg);
  pointer-events: none;
}

.blog-index-hero__copy {
  position: relative;
  z-index: 1;
  max-width: 43rem;
  padding-right: 2rem;
}

.blog-index-hero .eyebrow,
.article-hero .eyebrow {
  color: var(--c-accent-dark);
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
}

.blog-index-hero h1,
.article-hero h1 {
  display: block;
  text-align: left;
  text-wrap: pretty;
  overflow-wrap: anywhere;
  letter-spacing: -0.015em;
  color: var(--c-ink);
}

.blog-index-hero h1 {
  max-width: 38rem;
  margin: 1.1rem 0 0.8rem;
  font: 800 clamp(2rem, 5vw, 3rem)/1.2 var(--font-display);
}

.blog-index-hero p {
  max-width: 36rem;
  margin: 0;
  color: var(--c-muted);
  line-height: 1.8;
}

.blog-catalog {
  padding-block: 3.5rem 5rem;
}

.blog-catalog__head {
  margin-bottom: 1.25rem;
}

.blog-catalog__head h2 {
  margin: 0 0 0.35rem;
  color: var(--c-ink);
  font: 800 clamp(1.4rem, 3vw, 1.85rem)/1.3 var(--font-display);
  text-wrap: pretty;
}

.blog-catalog__head p {
  margin: 0;
  color: var(--c-muted);
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

.blog-filters button {
  appearance: none;
  padding: 0.55rem 0.9rem;
  background: var(--c-panel);
  color: var(--c-muted);
  border: 1px solid var(--c-border);
  border-radius: var(--r-pill);
  font: 600 0.875rem var(--font-body);
  cursor: pointer;
  transition: border-color 180ms ease, background-color 180ms ease, color 180ms ease;
}

.blog-filters button:hover,
.blog-filters button:focus-visible {
  border-color: var(--c-accent);
  color: var(--c-accent-dark);
}

.blog-filters button[aria-pressed="true"] {
  background: var(--c-ink);
  border-color: var(--c-ink);
  color: var(--c-on-ink);
}

.blog-card-list {
  display: grid;
  gap: 1rem;
}

.article-card,
.related-card,
.post-nav-card {
  position: relative;
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  background: var(--c-panel);
  box-shadow: var(--sh-hair);
  transition: border-color 200ms ease, box-shadow 200ms ease, transform 200ms ease;
}

.article-card:hover,
.article-card:focus-within,
.related-card:hover,
.related-card:focus-within,
.post-nav-card:hover,
.post-nav-card:focus-visible {
  border-color: var(--c-accent);
  box-shadow: var(--sh-soft);
  transform: translateY(-2px);
}

.article-card {
  padding: clamp(1.25rem, 3vw, 1.8rem);
}

.article-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  font: 600 0.75rem var(--font-mono);
  color: var(--c-muted);
}

.article-card__tag {
  padding: 0.25rem 0.6rem;
  border-radius: var(--r-pill);
  background: var(--a-accent-10);
  color: var(--c-accent-dark);
}

.article-card h3 {
  display: block;
  margin: 0.85rem 0 0.5rem;
  font: 750 clamp(1.15rem, 2.4vw, 1.45rem)/1.45 var(--font-display);
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.article-card h3 a,
.related-card h3 a {
  color: var(--c-ink);
  text-decoration: none;
}

.article-card h3 a:hover,
.related-card h3 a:hover {
  color: var(--c-accent-dark);
}

.article-card p {
  margin: 0 0 1rem;
  line-height: 1.8;
  color: var(--c-muted);
}

.article-card__link {
  color: var(--c-accent-dark);
  font-weight: 700;
  text-decoration: none;
}

.article-card__link:hover {
  text-decoration: underline;
}

.blog-empty {
  padding: 2rem;
  background: var(--c-panel);
  border: 1px dashed var(--c-border-strong);
  border-radius: var(--r-sm);
  color: var(--c-muted);
}

/* Article hero: inset content and a contained, tilted double-ring stamp. */
.blog-article .article-hero {
  position: relative;
  padding-block: 2.5rem 2.75rem;
  background: var(--c-panel-2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  overflow: hidden;
}

.article-hero > * {
  position: relative;
  z-index: 1;
}

.article-hero__meta {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.55rem;
  padding-right: 5rem;
  margin-bottom: 1.2rem;
  color: var(--c-muted);
  font-size: 0.8rem;
}

.article-hero__meta > * {
  display: inline-block;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--c-border-strong);
  border-radius: var(--r-pill);
  background: var(--c-panel);
}

.article-hero__meta .article-hero__tag {
  border-color: var(--c-accent-dark);
  background: var(--c-accent-dark);
  color: var(--c-on-ink);
}

.article-hero h1 {
  max-width: 45rem;
  margin: 0 0 1rem;
  font: 850 clamp(1.85rem, 4vw, 2.6rem)/1.32 var(--font-display);
}

.article-hero__summary {
  max-width: 44rem;
  margin: 0;
  color: var(--c-muted);
  font-size: 1.0625rem;
  line-height: 1.85;
}

.blog-article .reading-wrap {
  padding-block: 1.25rem 0;
}

.blog-article .prose {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.9;
  overflow-wrap: break-word;
}

.blog-article .prose h2,
.blog-article .prose h3 {
  display: block;
  color: var(--c-ink);
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.blog-article .prose {
  counter-reset: article-section;
}

.blog-article .prose h2 {
  counter-increment: article-section;
  margin: 2.8rem 0 1rem;
  font: 800 clamp(1.35rem, 3vw, 1.6rem)/1.45 var(--font-display);
}

.blog-article .prose > h2:first-child {
  margin-top: 1rem;
}

.blog-article .prose h2::before {
  content: counter(article-section, decimal-leading-zero) " / ";
  color: var(--c-accent-dark);
  font: 700 0.77rem var(--font-mono);
  letter-spacing: 0;
  vertical-align: 0.15em;
  white-space: nowrap;
}

.blog-article .prose h3 {
  margin: 1.9rem 0 0.7rem;
  font: 750 clamp(1.12rem, 2.5vw, 1.3rem)/1.5 var(--font-display);
}

.blog-article .prose p,
.blog-article .prose ul,
.blog-article .prose ol {
  margin: 0 0 1.2rem;
}

.blog-article .prose li {
  padding-left: 0.15rem;
  margin-bottom: 0.45rem;
}

.blog-article .prose a {
  color: var(--c-accent-dark);
  text-underline-offset: 0.18em;
}

.blog-article .prose :not(pre) > code {
  padding: 0.1em 0.3em;
  background: var(--c-panel-2);
  border-radius: var(--r-xs);
  font: 0.9em var(--font-mono);
  overflow-wrap: anywhere;
}

.blog-article .prose .table-scroll {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.blog-article .prose table {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
  font-size: 0.925rem;
}

.blog-article .prose th,
.blog-article .prose td {
  padding: 0.75rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--c-border);
}

.blog-article .prose thead {
  background: var(--c-ink);
  color: var(--c-on-ink);
}

.blog-article .prose thead th {
  color: var(--c-on-ink);
}

.blog-article .prose tbody tr:nth-child(even) {
  background: var(--c-panel-2);
}

.blog-article .prose tbody tr:hover {
  background: var(--a-accent-10);
}

.blog-article .prose pre {
  position: relative;
  overflow-x: auto;
  padding: 2.5rem 1.2rem 1.2rem;
  margin: 1.5rem 0;
  border-radius: var(--r-sm);
  background: var(--c-ink);
  color: var(--c-on-ink);
  font: 0.875rem/1.75 var(--font-mono);
}

.blog-article .prose pre::before {
  content: "●  ●  ●   TERMINAL";
  position: absolute;
  top: 0.55rem;
  left: 1.2rem;
  color: var(--c-accent-2);
  font: 0.7rem var(--font-mono);
  letter-spacing: 0.08em;
}

.blog-article .prose pre code {
  font: inherit;
  white-space: pre;
}

.blog-article .prose blockquote,
.blog-article .prose .callout {
  position: relative;
  margin: 1.6rem 0;
  padding: 1.15rem 1.4rem 1.15rem 3.2rem;
  border-left: 3px solid var(--c-accent);
  border-radius: var(--r-xs);
  background: var(--a-accent-10);
  color: var(--c-ink);
}

.blog-article .prose blockquote::before,
.blog-article .prose .callout::before {
  content: "i";
  position: absolute;
  left: 1rem;
  top: 1.15rem;
  display: grid;
  place-items: center;
  width: 1.3rem;
  height: 1.3rem;
  border: 1px solid currentColor;
  border-radius: 50%;
  color: var(--c-accent-dark);
  font: 700 0.8rem var(--font-mono);
}

.blog-article .prose blockquote p:last-child,
.blog-article .prose .callout p:last-child {
  margin-bottom: 0;
}

.blog-article .prose .callout--warning {
  border-color: var(--c-warn);
  background: color-mix(in srgb, var(--c-warn) 10%, var(--c-panel));
}

.blog-article .prose .callout--warning::before {
  color: var(--c-warn);
}

.blog-article .prose .callout--success {
  border-color: var(--c-success);
  background: color-mix(in srgb, var(--c-success) 10%, var(--c-panel));
}

.blog-article .prose .callout--success::before {
  color: var(--c-success);
}

.blog-article .prose .stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  gap: 0.8rem;
  margin: 1.5rem 0;
}

.blog-article .prose .stat-card {
  padding: 1.2rem;
  border: 1px solid var(--c-border);
  border-top: 3px solid var(--c-accent);
  border-radius: var(--r-sm);
  background: var(--a-accent-10);
}

.blog-article .prose .stat-card:nth-child(even) {
  background: var(--c-panel-2);
  border-top-color: var(--c-ink-2);
}

.blog-article .prose .stat-num {
  display: block;
  color: var(--c-ink);
  font: 800 clamp(1.35rem, 3vw, 1.85rem)/1.25 var(--font-display);
}

.blog-article .prose .stat-label {
  display: block;
  margin-top: 0.5rem;
  color: var(--c-muted);
  font-size: 0.875rem;
}

.blog-article .prose .check-list {
  list-style: none;
  padding: 0;
  margin: 1.4rem 0;
  display: grid;
  gap: 0.65rem;
}

.blog-article .prose .check-list li {
  list-style: none;
  margin: 0;
  padding: 0.75rem 1rem;
  background: var(--c-panel);
  border: 1px solid var(--c-border);
  border-radius: var(--r-xs);
}

.blog-article .prose .verdict {
  margin: 1.5rem 0;
  padding: 1.1rem 1.3rem;
  border-left: 4px solid var(--c-accent);
  border-radius: var(--r-xs);
  background: var(--c-panel-2);
}

.blog-article .prose .verdict p:last-child {
  margin-bottom: 0;
}

.blog-article .promo-block {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.3rem;
  margin: 3rem 0 2rem;
  padding: clamp(1.5rem, 4vw, 2.2rem);
  border: 1px solid var(--c-ink);
  border-radius: var(--r-md);
  background: linear-gradient(130deg, var(--c-ink), var(--c-accent-dark));
  color: var(--c-on-ink);
}

.blog-article .promo-block strong {
  font: 850 1.5rem var(--font-display);
}

.blog-article .promo-block p {
  max-width: 36rem;
  margin: 0.55rem 0 0;
  color: var(--c-on-ink);
}

.blog-article .promo-block .btn-primary {
  flex-shrink: 0;
  background: var(--c-panel);
  color: var(--c-ink);
  border-color: var(--c-panel);
  box-shadow: none;
}

.blog-article .promo-block .btn-primary:hover {
  background: var(--c-panel-2);
  color: var(--c-ink);
}

#related-posts {
  padding-block: 1rem 1rem;
}

#related-posts h2 {
  display: block;
  margin: 0 0 1rem;
  color: var(--c-ink);
  font: 800 1.5rem/1.4 var(--font-display);
  text-wrap: pretty;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.related-card {
  padding: 1.1rem;
}

.related-card__meta {
  margin: 0 0 0.7rem;
  color: var(--c-accent-dark);
  font: 600 0.7rem/1.5 var(--font-mono);
}

.related-card h3 {
  display: block;
  margin: 0 0 0.6rem;
  font: 750 1.08rem/1.5 var(--font-display);
  text-wrap: pretty;
  overflow-wrap: anywhere;
}

.related-card > p:last-child {
  margin: 0;
  color: var(--c-muted);
  font-size: 0.875rem;
  line-height: 1.7;
}

#post-nav {
  padding-block: 1rem 3rem;
}

.post-nav-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.post-nav-card {
  display: block;
  padding: 1rem 1.2rem;
  color: var(--c-ink);
  text-decoration: none;
}

.post-nav-card span {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--c-accent-dark);
  font: 700 0.75rem var(--font-mono);
}

.post-nav-card strong {
  display: block;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.blog-modal-active {
  overflow: hidden;
}

.blog-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: var(--a-ink-70);
  opacity: 0;
  transition: opacity 220ms ease;
}

.blog-modal-overlay.is-open {
  opacity: 1;
}

.blog-modal {
  position: relative;
  box-sizing: border-box;
  width: min(100%, 28rem);
  padding: 2.2rem;
  background: var(--c-panel);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  box-shadow: var(--sh-float);
  color: var(--c-ink);
  transform: translateY(0.6rem);
  transition: transform 220ms ease;
}

.blog-modal-overlay.is-open .blog-modal {
  transform: translateY(0);
}

.blog-modal__close {
  position: absolute;
  top: 0.7rem;
  right: 0.8rem;
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: 1px solid var(--c-border);
  border-radius: var(--r-xs);
  background: var(--c-panel);
  color: var(--c-ink);
  font-size: 1.5rem;
  cursor: pointer;
}

.blog-modal__close:hover,
.blog-modal__close:focus-visible {
  border-color: var(--c-accent);
}

.blog-modal .eyebrow {
  color: var(--c-accent-dark);
  font-family: var(--font-mono);
}

.blog-modal h2 {
  display: block;
  margin: 0.8rem 0;
  font: 850 2rem/1.3 var(--font-display);
}

.blog-modal p {
  margin: 0 0 1.5rem;
  color: var(--c-muted);
  line-height: 1.8;
}

@media (max-width: 860px) {
  .blog-article .prose table {
    display: block;
    width: fit-content;
    max-width: 100%;
    overflow-x: auto;
  }
}

@media (max-width: 640px) {
  .blog-index-hero,
  .blog-article .article-hero {
    padding-block: 2rem;
  }

  .blog-index-hero::after,
  .article-hero::after {
    top: 1rem;
    right: 1rem;
    width: 3rem;
    height: 3rem;
    font-size: 0.85rem;
  }

  .blog-index-hero__copy {
    padding-right: 0;
  }

  .blog-index-hero .eyebrow {
    display: inline-block;
    max-width: calc(100% - 3.5rem);
  }

  .article-hero__meta {
    padding-right: 3.5rem;
  }

  .blog-catalog {
    padding-block: 2.5rem 3rem;
  }

  .blog-filters {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }

  .blog-filters button {
    flex: 0 0 auto;
  }

  .related-grid,
  .post-nav-links {
    grid-template-columns: 1fr;
  }

  .blog-modal {
    padding: 1.6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .blog-filters button,
  .article-card,
  .related-card,
  .post-nav-card,
  .blog-modal-overlay,
  .blog-modal {
    transition: none;
  }

  .article-card:hover,
  .article-card:focus-within,
  .related-card:hover,
  .related-card:focus-within,
  .post-nav-card:hover,
  .post-nav-card:focus-visible,
  .blog-modal {
    transform: none;
  }
}