:root {
  --blog-reading: 56rem;
  --blog-inset: 1.5rem;
}

.reading-wrap {
  width: 100%;
  max-width: calc(var(--blog-reading) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-bottom: 2.5rem;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  margin-top: 1.5rem;
  margin-bottom: 1.25rem;
  font-size: .8rem;
  line-height: 1.4;
  color: var(--text-muted);
}

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

.breadcrumb a:hover {
  color: var(--accent-dark);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.breadcrumb .sep {
  color: var(--text-soft);
}

.breadcrumb [aria-current="page"] {
  color: var(--text);
}

.blog-hero {
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.blog-eyebrow {
  margin: 0 0 .5rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--accent-dark);
}

.blog-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.2vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.02em;
  text-wrap: pretty;
}

.blog-sub {
  margin: .8rem 0 0;
  max-width: 46rem;
  font-size: 1.0625rem;
  line-height: 1.62;
  color: var(--text-muted);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.5rem;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: .4rem 1rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: .875rem;
  line-height: 1.2;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.filter-btn:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.filter-btn[aria-pressed="true"] {
  background: var(--text);
  border-color: var(--text);
  color: var(--bg-panel);
}

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

.post-list-title {
  margin: 2rem 0 1rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.01em;
}

.post-list-title::before {
  content: "";
  display: inline-block;
  width: .45rem;
  height: .45rem;
  margin-right: .5rem;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: middle;
}

.post-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.post-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: 1.4rem 1.5rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  color: var(--text);
  text-decoration: none;
  box-shadow: var(--shadow-xs);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.post-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  border-radius: var(--r-lg) var(--r-lg) 0 0;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.post-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-card-hover);
}

.post-card:hover::before {
  opacity: 1;
}

.post-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -.01em;
  text-wrap: pretty;
  transition: color var(--dur-fast) var(--ease);
}

.post-card:hover h3 {
  color: var(--accent-dark);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: .7rem;
  line-height: 1.4;
  letter-spacing: .02em;
  color: var(--text-soft);
}

.post-meta .sep {
  width: 1px;
  height: .8em;
  background: var(--border-strong);
}

.post-meta .post-tag {
  color: var(--accent-dark);
  font-weight: 600;
}

.post-summary {
  margin: 0;
  font-size: .925rem;
  line-height: 1.65;
  color: var(--text-muted);
}

.post-more {
  margin-top: auto;
  padding-top: .25rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--accent-dark);
}

.post-card:hover .post-more {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.blog-empty {
  margin: 1.5rem 0 0;
  padding: 2rem 0;
  font-size: .95rem;
  color: var(--text-muted);
}

.article-hero {
  position: relative;
  margin-bottom: 2rem;
  padding-block: clamp(1.75rem, 4vw, 2.5rem);
  padding-inline: var(--blog-inset);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
}

.article-hero::after {
  content: "VPNUJ";
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  display: grid;
  place-items: center;
  width: 5.25rem;
  height: 5.25rem;
  border: 1px solid var(--accent-line);
  border-radius: 50%;
  background: var(--bg-panel);
  box-shadow: inset 0 0 0 3px var(--bg-panel), inset 0 0 0 4px var(--accent-line);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: .55rem;
  font-weight: 700;
  letter-spacing: .12em;
  line-height: 1;
  transform: rotate(-11deg);
  pointer-events: none;
  user-select: none;
}

.article-hero .hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  margin: 0 0 .9rem;
}

.article-hero .meta-pill {
  display: inline-flex;
  align-items: center;
  padding: .18rem .6rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .01em;
  color: var(--text-muted);
}

.article-hero .tag {
  display: inline-flex;
  align-items: center;
  padding: .18rem .65rem;
  background: var(--accent);
  border: 0;
  border-radius: var(--r-pill);
  color: var(--bg-panel);
  font-family: var(--font-body);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .01em;
}

.article-hero h1 {
  margin: 0;
  padding-right: 7rem;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -.02em;
  text-wrap: pretty;
}

.article-hero .hero-summary {
  margin: .9rem 0 0;
  max-width: 46rem;
  padding-right: 7rem;
  font-size: 1.0625rem;
  line-height: 1.62;
  color: var(--text-muted);
}

.prose {
  width: 100%;
  max-width: none;
  margin-inline: 0;
  padding-inline: var(--blog-inset);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text);
  counter-reset: section;
}

.prose > * + * {
  margin-top: 1.1em;
}

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

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

.prose h2 {
  margin: 2.2em 0 .6em;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.2vw, 1.6rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.015em;
  text-wrap: pretty;
}

.prose h2::before {
  counter-increment: section;
  content: counter(section, decimal-leading-zero);
  margin-right: .55rem;
  font-family: var(--font-mono);
  font-size: .72em;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--accent);
}

.prose h3 {
  margin: 1.6em 0 .4em;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1.6vw, 1.25rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -.01em;
  text-wrap: pretty;
}

.prose p {
  margin: 0;
}

.prose ul,
.prose ol {
  margin: 1em 0 0;
  padding-left: 1.35em;
}

.prose li + li {
  margin-top: .35em;
}

.prose blockquote {
  margin: 1.5em 0;
  padding: .2em 0 .2em 1.1em;
  border-left: 3px solid var(--accent-line);
  color: var(--text-muted);
}

.prose blockquote p + p {
  margin-top: .7em;
}

.prose hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2.2em 0;
}

.prose a {
  color: var(--accent-dark);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.prose a:hover {
  color: var(--accent);
}

.prose strong {
  font-weight: 700;
  color: var(--text);
}

.prose img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
}

.prose :not(pre) > code {
  padding: .15em .4em;
  background: var(--bg-panel-2);
  border-radius: var(--r-xs);
  font-family: var(--font-mono);
  font-size: .88em;
  overflow-wrap: anywhere;
}

.prose pre {
  position: relative;
  margin: 1.5em 0;
  padding: 2.25rem 1.25rem 1.25rem;
  background: var(--ink-3);
  border: 1px solid var(--ink-line-hi);
  border-radius: var(--r-md);
  color: var(--ink-text);
  overflow-x: auto;
}

.prose pre::before {
  content: "";
  position: absolute;
  top: .85rem;
  left: 1rem;
  width: .5rem;
  height: .5rem;
  border-radius: 50%;
  background: var(--error);
  box-shadow: .85rem 0 0 var(--warn), 1.7rem 0 0 var(--success);
}

.prose pre code {
  padding: 0;
  background: none;
  border-radius: 0;
  color: inherit;
  font-family: var(--font-mono);
  font-size: .875rem;
  line-height: 1.7;
}

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

.prose table {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
  font-size: .95rem;
  line-height: 1.55;
}

.prose thead th {
  padding: .7rem .8rem;
  background: var(--ink);
  border-bottom: 0;
  color: var(--ink-text);
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .02em;
  text-align: left;
}

.prose tbody td {
  padding: .65rem .8rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

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

.prose tbody tr:hover {
  background: var(--accent-soft);
}

.prose tbody tr:last-child td {
  border-bottom: 0;
}

.prose .stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10.5rem, 1fr));
  gap: .875rem;
  margin: 1.5em 0;
}

.prose .stat-card {
  padding: 1.1rem 1.15rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: var(--r-md);
}

.prose .stat-card:nth-child(2n) {
  background: var(--bg-panel-2);
  border-top-color: var(--space-blue);
}

.prose .stat-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--text);
}

.prose .stat-label {
  margin: .3rem 0 0;
  font-size: .82rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.prose .check-list {
  display: grid;
  gap: .5rem;
  margin: 1.2em 0;
  padding: 0;
  list-style: none;
}

.prose .check-list li {
  padding: .7rem 1rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font-size: .95rem;
  line-height: 1.65;
}

.prose .check-list li + li {
  margin-top: 0;
}

.prose .verdict {
  margin: 1.5em 0;
  padding: 1rem 1.25rem;
  background: var(--bg-panel-2);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-size: .95rem;
  line-height: 1.7;
}

.prose .verdict strong {
  color: var(--accent-dark);
}

.prose .callout {
  position: relative;
  margin: 1.5em 0;
  padding: 1rem 1.25rem 1rem 3rem;
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  font-size: .95rem;
  line-height: 1.7;
}

.prose .callout::before {
  content: "i";
  position: absolute;
  top: 1.05rem;
  left: .9rem;
  display: grid;
  place-items: center;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg-panel);
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  line-height: 1;
}

.prose .callout-title {
  display: block;
  margin-bottom: .2rem;
  font-weight: 700;
  color: var(--accent-dark);
}

.prose .callout p {
  margin: 0;
}

.prose .callout-warning {
  background: var(--bg-panel-2);
  background: color-mix(in srgb, var(--warn) 8%, var(--bg-panel));
  border-left-color: var(--warn);
}

.prose .callout-warning::before {
  content: "!";
  background: var(--warn);
}

.prose .callout-warning .callout-title {
  color: var(--warn);
}

.prose .callout-success {
  background: var(--bg-panel-2);
  background: color-mix(in srgb, var(--success) 8%, var(--bg-panel));
  border-left-color: var(--success);
}

.prose .callout-success::before {
  content: "✓";
  background: var(--success);
}

.prose .callout-success .callout-title {
  color: var(--success);
}

.promo-block {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding: 2rem var(--blog-inset);
  background: linear-gradient(135deg, var(--ink) 0%, var(--ink-2) 58%, var(--accent-dark) 130%);
  border: 1px solid var(--ink-line-hi);
  border-radius: var(--r-xl);
  color: var(--ink-text);
  box-shadow: var(--shadow-ink);
}

.promo-block .promo-brand {
  display: flex;
  align-items: center;
  gap: .45rem;
  margin: 0 0 .4rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--ink-text);
}

.promo-block .promo-brand::before {
  content: "";
  width: .45rem;
  height: .45rem;
  border-radius: 50%;
  background: var(--accent);
}

.promo-block .promo-text {
  margin: 0;
  max-width: 38rem;
  font-size: .95rem;
  line-height: 1.65;
  color: var(--ink-muted);
}

.promo-block .btn-primary {
  flex-shrink: 0;
  background: var(--bg-panel);
  border-color: var(--bg-panel);
  color: var(--ink);
}

.promo-block .btn-primary:hover {
  background: var(--bg-panel-2);
  border-color: var(--bg-panel-2);
}

.promo-block .btn-ghost {
  flex-shrink: 0;
  background: transparent;
  border-color: var(--ink-line-hi);
  color: var(--ink-text);
}

.promo-block .btn-ghost:hover {
  border-color: var(--ink-text);
}

#related-posts {
  padding-top: 2.5rem;
}

#related-posts:empty {
  padding-top: 0;
}

#related-posts h2 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.01em;
}

#related-posts h2::before {
  content: "";
  display: inline-block;
  width: 1.1rem;
  height: 2px;
  margin-right: .5rem;
  background: var(--accent);
  vertical-align: middle;
}

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

.related-card {
  display: flex;
  flex-direction: column;
  gap: .45rem;
  padding: 1.1rem 1.15rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-top: 2px solid transparent;
  border-radius: var(--r-md);
  color: var(--text);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.related-card:hover {
  border-top-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.related-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -.01em;
  text-wrap: pretty;
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding-block: 1.5rem 2rem;
}

#post-nav:empty {
  padding-block: 0;
}

.post-nav-link {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding: 1rem 1.15rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  color: var(--text);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.post-nav-link:hover {
  border-color: var(--accent-line);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.post-nav-link .nav-dir {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .08em;
  color: var(--text-soft);
}

.post-nav-link .nav-title {
  font-family: var(--font-display);
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -.01em;
}

.post-nav-link .nav-date {
  font-family: var(--font-mono);
  font-size: .68rem;
  color: var(--text-soft);
}

.post-nav-link.next {
  align-items: flex-end;
  text-align: right;
}

.post-nav-link:only-child {
  grid-column: 1 / -1;
}

.float-cta {
  position: fixed;
  right: 1.25rem;
  bottom: calc(1.25rem + env(safe-area-inset-bottom, 0px));
  z-index: 60;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  max-width: calc(100vw - 2rem);
  padding: .7rem 1.15rem;
  background: var(--text);
  border: 1px solid var(--ink-line-hi);
  border-radius: var(--r-pill);
  color: var(--bg-panel);
  font-family: var(--font-body);
  font-size: .875rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: var(--shadow-float);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.float-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-ink-hover);
}

.float-cta svg {
  width: 1rem;
  height: 1rem;
  flex: none;
}

@media (max-width: 900px) {
  .related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .prose table {
    display: block;
    width: 100%;
    min-width: 0;
    max-width: 100%;
    overflow-x: auto;
    white-space: nowrap;
  }
}

@media (max-width: 760px) {
  .post-list {
    grid-template-columns: 1fr;
  }

  #post-nav {
    grid-template-columns: 1fr;
  }

  .post-nav-link.next {
    align-items: flex-start;
    text-align: left;
  }
}

@media (max-width: 640px) {
  .related-grid {
    grid-template-columns: 1fr;
  }

  .promo-block {
    flex-direction: column;
    align-items: flex-start;
    padding-block: 1.5rem;
  }

  .article-hero h1,
  .article-hero .hero-summary {
    padding-right: 4.5rem;
  }

  .article-hero::after {
    top: .8rem;
    right: .8rem;
    width: 3.75rem;
    height: 3.75rem;
    font-size: .44rem;
    letter-spacing: .08em;
  }

  .float-cta {
    right: .75rem;
    bottom: calc(.75rem + env(safe-area-inset-bottom, 0px));
    padding: .6rem .95rem;
    font-size: .8rem;
  }

  body:has(.float-cta) {
    padding-bottom: 3.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .post-card,
  .filter-btn,
  .related-card,
  .post-nav-link,
  .float-cta,
  .post-card h3,
  .promo-block .btn {
    transition: none;
  }

  .post-card:hover,
  .related-card:hover,
  .post-nav-link:hover,
  .float-cta:hover {
    transform: none;
  }
}