:root {
  --color-bg: #F8F3EA;
  --color-panel: #FFFDF8;
  --color-panel-soft: #F1EADC;
  --color-border: #E4DACB;
  --color-accent: #3D2C8D;
  --color-accent-dark: #2A1D66;
  --color-accent-bright: #6B5BE0;
  --color-text: #2A2318;
  --color-muted: #6E6353;
  --color-success: #2E7D4F;
  --color-warning: #C27A12;
  --color-error: #B8362A;
  --color-on-accent: #FFFDF8;
  --color-code-bg: #2A2318;
  --color-code-text: #F8F3EA;
  --color-transparent: transparent;
  --font-display: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Inter", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --shadow-panel: 0 14px 36px color-mix(in srgb, var(--color-accent) 10%, var(--color-transparent));
  --shadow-raised: 0 18px 44px color-mix(in srgb, var(--color-accent) 13%, var(--color-transparent));
  --shadow-button: 0 8px 20px color-mix(in srgb, var(--color-accent) 20%, var(--color-transparent));
  --content-width: 1180px;
  --content-reading: 56rem;
  --reading-padding: 1.5rem;
  --gutter: clamp(1rem, 4vw, 2rem);
  --header-height: 72px;
  --transition-fast: 180ms ease;
}

* {
  box-sizing: border-box;
}

.blog-index-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(5rem, 10vw, 8rem);
  padding-bottom: clamp(4rem, 8vw, 6rem);
  background:
    radial-gradient(
      circle at 50% 18%,
      color-mix(in srgb, var(--color-accent-bright) 10%, var(--color-transparent)),
      var(--color-transparent) 42%
    ),
    linear-gradient(
      to bottom,
      color-mix(in srgb, var(--color-panel) 74%, var(--color-bg)),
      var(--color-bg)
    );
}

.blog-index-hero::before,
.blog-index-hero::after {
  position: absolute;
  left: 50%;
  width: min(42rem, 78vw);
  height: 1px;
  content: "";
  background: linear-gradient(
    to right,
    var(--color-transparent),
    color-mix(in srgb, var(--color-accent) 32%, var(--color-border)),
    var(--color-transparent)
  );
}

.blog-index-hero::before {
  top: 2rem;
}

.blog-index-hero::after {
  bottom: 2rem;
}

.blog-index-hero-inner {
  position: relative;
  z-index: 1;
  width: min(calc(100% - (var(--gutter) * 2)), 56rem);
  margin-inline: auto;
  text-align: center;
}

.blog-kicker,
.article-kicker,
.section-eyebrow {
  margin: 0 0 1rem;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.blog-index-hero h1 {
  max-width: 15em;
  margin: 0 auto;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 6vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.08;
  text-wrap: pretty;
}

.blog-title-rule {
  display: block;
  width: 3.5em;
  height: 3px;
  margin: 1.5rem auto;
  border-radius: var(--radius-pill);
  background: linear-gradient(
    to right,
    var(--color-accent),
    var(--color-accent-bright)
  );
}

.blog-index-hero p:last-child {
  max-width: 42rem;
  margin: 0 auto;
  color: var(--color-muted);
  font-size: 1.05rem;
  line-height: 1.85;
}

.blog-catalog {
  padding-top: clamp(3.5rem, 7vw, 5.5rem);
  padding-bottom: clamp(5rem, 9vw, 7rem);
}

.blog-list-wrap {
  width: min(calc(100% - (var(--gutter) * 2)), var(--content-width));
  margin-inline: auto;
}

.blog-catalog-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(15rem, 27rem);
  gap: 2rem;
  align-items: end;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.blog-catalog-head h2 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 2.35rem);
  letter-spacing: -0.02em;
  line-height: 1.2;
  text-wrap: pretty;
}

.blog-catalog-head > p {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.75;
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  padding-top: 1.5rem;
  padding-bottom: 2rem;
}

.tag-filter {
  min-height: 2.5rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 650;
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    background-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
}

.tag-filter:hover {
  border-color: color-mix(in srgb, var(--color-accent) 55%, var(--color-border));
  transform: translateY(-1px);
}

.tag-filter:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--color-accent-bright) 30%, var(--color-transparent));
  outline-offset: 2px;
}

.tag-filter.is-active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-on-accent);
  box-shadow: var(--shadow-button);
}

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

.article-card {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 20rem;
  flex-direction: column;
  padding: clamp(1.35rem, 3vw, 2rem);
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-panel);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.article-card::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  content: "";
  background: linear-gradient(
    to right,
    var(--color-accent),
    var(--color-accent-bright)
  );
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.article-card:hover {
  border-color: color-mix(in srgb, var(--color-accent) 44%, var(--color-border));
  box-shadow: var(--shadow-raised);
  transform: translateY(-3px);
}

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

.article-card-meta,
.related-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
  margin-bottom: 1.15rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.article-card-meta .badge,
.related-card-meta .badge {
  padding: 0.32rem 0.55rem;
  border: 1px solid color-mix(in srgb, var(--color-accent) 22%, var(--color-border));
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-accent) 8%, var(--color-panel));
  color: var(--color-accent-dark);
  font-family: var(--font-body);
  font-weight: 700;
}

.article-card h3 {
  margin: 0 0 1rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.28rem, 2.4vw, 1.6rem);
  letter-spacing: -0.015em;
  line-height: 1.42;
  text-wrap: pretty;
}

.article-card > p {
  margin: 0 0 1.5rem;
  color: var(--color-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.article-card .text-link {
  width: fit-content;
  margin-top: auto;
  color: var(--color-accent);
  font-weight: 750;
  text-decoration: none;
}

.article-card .text-link:hover {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-underline-offset: 0.25em;
}

.blog-empty {
  margin: 1rem 0 0;
  padding: 2rem;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel-soft);
  color: var(--color-muted);
  text-align: center;
}

.breadcrumbs {
  width: calc(100% - (var(--gutter) * 2));
  max-width: calc(var(--content-reading) + (var(--reading-padding) * 2));
  margin-top: 1.5rem;
  margin-right: auto;
  margin-left: auto;
  padding-top: 0.25rem;
  padding-right: var(--reading-padding);
  padding-left: var(--reading-padding);
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs li:not(:last-child)::after {
  margin-left: 0.45rem;
  color: color-mix(in srgb, var(--color-muted) 58%, var(--color-border));
  content: "/";
}

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

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

.article-hero {
  position: relative;
  width: calc(100% - (var(--gutter) * 2));
  max-width: calc(var(--content-reading) + (var(--reading-padding) * 2));
  margin-inline: auto;
  padding-top: clamp(3.5rem, 7vw, 5.5rem);
  padding-right: var(--reading-padding);
  padding-bottom: clamp(2.75rem, 5vw, 4rem);
  padding-left: var(--reading-padding);
  text-align: center;
}

.article-hero::before,
.article-hero::after {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  content: "";
}

.article-hero::before {
  top: 1.5rem;
  width: min(30rem, 70%);
  height: 1px;
  background: linear-gradient(
    to right,
    var(--color-transparent),
    var(--color-border),
    var(--color-transparent)
  );
}

.article-hero::after {
  bottom: 1.25rem;
  width: 3.5em;
  height: 3px;
  border-radius: var(--radius-pill);
  background: linear-gradient(
    to right,
    var(--color-accent),
    var(--color-accent-bright)
  );
}

.article-hero h1 {
  margin: 0 auto;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  text-wrap: pretty;
}

.article-hero-summary {
  max-width: 48rem;
  margin: 1.35rem auto 0;
  color: var(--color-muted);
  font-size: 1.04rem;
  line-height: 1.85;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
  margin: 0 0 1.25rem;
  color: var(--color-muted);
  font-size: 0.82rem;
}

.article-meta > * {
  padding: 0.36rem 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
}

.article-meta .badge {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-weight: 700;
}

.reading-wrap {
  width: calc(100% - (var(--gutter) * 2));
  max-width: calc(var(--content-reading) + (var(--reading-padding) * 2));
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--reading-padding);
  padding-left: var(--reading-padding);
}

.article-body,
.post-body,
article[data-blog-article] {
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  counter-reset: article-section;
}

:is(.article-body, .post-body, article[data-blog-article]) > :first-child {
  margin-top: 0;
}

:is(.article-body, .post-body, article[data-blog-article]) h1,
:is(.article-body, .post-body, article[data-blog-article]) h2,
:is(.article-body, .post-body, article[data-blog-article]) h3 {
  color: var(--color-text);
  font-family: var(--font-display);
  text-wrap: pretty;
}

:is(.article-body, .post-body, article[data-blog-article]) h2 {
  margin-top: 3.25rem;
  margin-bottom: 1rem;
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  letter-spacing: -0.015em;
  line-height: 1.35;
  counter-increment: article-section;
}

:is(.article-body, .post-body, article[data-blog-article]) h2::before {
  display: inline-block;
  min-width: 2.1em;
  margin-right: 0.65rem;
  padding: 0.2rem 0.35rem;
  border-radius: var(--radius-xs);
  background: color-mix(in srgb, var(--color-accent) 11%, var(--color-panel));
  color: var(--color-accent);
  content: counter(article-section, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.62em;
  line-height: 1.3;
  text-align: center;
  vertical-align: 0.18em;
}

:is(.article-body, .post-body, article[data-blog-article]) h3 {
  margin-top: 2.2rem;
  margin-bottom: 0.8rem;
  font-size: clamp(1.15rem, 2.5vw, 1.3rem);
  letter-spacing: -0.01em;
  line-height: 1.42;
}

:is(.article-body, .post-body, article[data-blog-article]) p {
  margin-top: 0;
  margin-bottom: 1.35rem;
}

:is(.article-body, .post-body, article[data-blog-article]) a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

:is(.article-body, .post-body, article[data-blog-article]) a:hover {
  color: var(--color-accent-dark);
}

:is(.article-body, .post-body, article[data-blog-article]) ul,
:is(.article-body, .post-body, article[data-blog-article]) ol {
  margin-top: 0;
  margin-bottom: 1.5rem;
  padding-left: 1.4rem;
}

:is(.article-body, .post-body, article[data-blog-article]) li {
  margin-bottom: 0.55rem;
  padding-left: 0.2rem;
}

:is(.article-body, .post-body, article[data-blog-article]) blockquote {
  margin: 1.75rem 0;
  padding: 1.25rem 1.4rem;
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: color-mix(in srgb, var(--color-accent) 7%, var(--color-panel));
  color: var(--color-text);
}

:is(.article-body, .post-body, article[data-blog-article]) blockquote p:last-child {
  margin-bottom: 0;
}

.table-scroll {
  width: 100%;
  margin: 1.75rem 0;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
}

:is(.article-body, .post-body, article[data-blog-article]) table {
  width: 100%;
  min-width: 38rem;
  border-collapse: collapse;
  font-size: 0.92rem;
  line-height: 1.6;
}

:is(.article-body, .post-body, article[data-blog-article]) th,
:is(.article-body, .post-body, article[data-blog-article]) td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

:is(.article-body, .post-body, article[data-blog-article]) th {
  background: var(--color-accent-dark);
  color: var(--color-on-accent);
  font-weight: 750;
}

:is(.article-body, .post-body, article[data-blog-article]) tbody tr:nth-child(even) {
  background: color-mix(in srgb, var(--color-panel-soft) 62%, var(--color-panel));
}

:is(.article-body, .post-body, article[data-blog-article]) tbody tr:hover {
  background: color-mix(in srgb, var(--color-accent) 8%, var(--color-panel));
}

:is(.article-body, .post-body, article[data-blog-article]) pre {
  position: relative;
  margin: 1.75rem 0;
  padding: 3rem 1.25rem 1.3rem;
  overflow-x: auto;
  border: 1px solid color-mix(in srgb, var(--color-code-bg) 75%, var(--color-border));
  border-radius: var(--radius-md);
  background: var(--color-code-bg);
  box-shadow: var(--shadow-panel);
  color: var(--color-code-text);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.75;
}

:is(.article-body, .post-body, article[data-blog-article]) pre::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  padding: 0.72rem 1rem;
  border-bottom: 1px solid color-mix(in srgb, var(--color-code-text) 15%, var(--color-transparent));
  color: color-mix(in srgb, var(--color-code-text) 70%, var(--color-muted));
  content: "VPNGY / TERMINAL";
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

:is(.article-body, .post-body, article[data-blog-article]) pre code {
  padding: 0;
  background: var(--color-transparent);
  color: inherit;
  font-family: inherit;
}

:is(.article-body, .post-body, article[data-blog-article]) :not(pre) > code {
  padding: 0.15em 0.35em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: var(--color-panel-soft);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 0.88em;
}

.callout {
  position: relative;
  margin: 1.75rem 0;
  padding: 1.25rem 1.35rem 1.25rem 3.5rem;
  border: 1px solid color-mix(in srgb, var(--color-accent) 24%, var(--color-border));
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-accent) 7%, var(--color-panel));
}

.callout::before {
  position: absolute;
  top: 1.15rem;
  left: 1rem;
  display: grid;
  width: 1.65rem;
  height: 1.65rem;
  place-items: center;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-on-accent);
  content: "i";
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
}

.callout.warning {
  border-color: color-mix(in srgb, var(--color-warning) 35%, var(--color-border));
  border-left-color: var(--color-warning);
  background: color-mix(in srgb, var(--color-warning) 9%, var(--color-panel));
}

.callout.warning::before {
  background: var(--color-warning);
}

.callout.success {
  border-color: color-mix(in srgb, var(--color-success) 35%, var(--color-border));
  border-left-color: var(--color-success);
  background: color-mix(in srgb, var(--color-success) 8%, var(--color-panel));
}

.callout.success::before {
  background: var(--color-success);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  margin: 1.75rem 0;
}

.stat-card {
  position: relative;
  min-width: 0;
  padding: 1.2rem;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--color-accent) 22%, var(--color-border));
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-accent) 6%, var(--color-panel));
}

.stat-card::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  content: "";
  background: var(--color-accent);
}

.stat-card:nth-child(even) {
  border-color: color-mix(in srgb, var(--color-accent-bright) 25%, var(--color-border));
  background: color-mix(in srgb, var(--color-accent-bright) 8%, var(--color-panel));
}

.stat-card:nth-child(even)::before {
  background: var(--color-accent-bright);
}

.stat-num {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--color-accent-dark);
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 800;
  line-height: 1.2;
}

.stat-label {
  display: block;
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.check-list {
  margin: 1.75rem 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  margin: 0;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  background: var(--color-panel);
}

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

.check-list li:first-child {
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.check-list li:last-child {
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.check-list li:only-child {
  border-radius: var(--radius-sm);
}

.verdict {
  margin: 1.75rem 0;
  padding: 1.25rem 1.35rem;
  border-left: 5px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: linear-gradient(
    to right,
    color-mix(in srgb, var(--color-accent) 11%, var(--color-panel)),
    var(--color-panel)
  );
  box-shadow: var(--shadow-panel);
}

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

.promo-block {
  position: relative;
  display: grid;
  width: calc(100% - (var(--gutter) * 2));
  max-width: calc(var(--content-reading) + (var(--reading-padding) * 2));
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  margin: 3.5rem auto 0;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--color-accent-bright) 50%, var(--color-accent));
  border-radius: var(--radius-md);
  background: linear-gradient(
    135deg,
    var(--color-accent-dark),
    var(--color-accent) 58%,
    var(--color-accent-bright)
  );
  box-shadow: var(--shadow-raised);
  color: var(--color-on-accent);
}

.promo-block::before,
.promo-block::after {
  position: absolute;
  border: 1px solid color-mix(in srgb, var(--color-on-accent) 23%, var(--color-transparent));
  content: "";
  pointer-events: none;
}

.promo-block::before {
  top: 1rem;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  border-radius: var(--radius-sm);
}

.promo-block::after {
  top: 50%;
  right: 8%;
  width: 5rem;
  height: 5rem;
  border-radius: var(--radius-lg);
}

.promo-block > * {
  position: relative;
  z-index: 1;
}

.promo-block h2 {
  margin: 0 0 0.55rem;
  color: var(--color-on-accent);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.7rem);
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.promo-block p {
  margin: 0;
  color: color-mix(in srgb, var(--color-on-accent) 84%, var(--color-accent-bright));
  line-height: 1.75;
}

.promo-block .btn {
  border-color: var(--color-panel);
  background: var(--color-panel);
  color: var(--color-accent-dark);
  box-shadow: var(--shadow-button);
}

.promo-block .btn:hover {
  border-color: var(--color-panel-soft);
  background: var(--color-panel-soft);
  color: var(--color-accent-dark);
}

#related-posts {
  width: calc(100% - (var(--gutter) * 2));
  max-width: calc(var(--content-reading) + (var(--reading-padding) * 2));
  margin-inline: auto;
  padding-top: 3rem;
  padding-right: var(--reading-padding);
  padding-left: var(--reading-padding);
}

#related-posts > h2 {
  margin: 0 0 1.25rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.related-card {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 1.15rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.related-card::before,
.post-nav-card::before {
  position: absolute;
  top: -1px;
  right: -1px;
  left: -1px;
  height: 3px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  background: linear-gradient(
    to right,
    var(--color-accent),
    var(--color-accent-bright)
  );
  content: "";
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.related-card:hover {
  border-color: color-mix(in srgb, var(--color-accent) 45%, var(--color-border));
  box-shadow: var(--shadow-panel);
  transform: translateY(-2px);
}

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

.related-card h3 {
  margin: 0 0 0.75rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  line-height: 1.5;
  text-wrap: pretty;
}

.related-card p {
  margin: 0 0 1rem;
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

.related-card-link {
  width: fit-content;
  margin-top: auto;
  color: var(--color-accent);
  font-size: 0.9rem;
  font-weight: 750;
  text-decoration: none;
}

.post-navigation {
  display: grid;
  width: calc(100% - (var(--gutter) * 2));
  max-width: calc(var(--content-reading) + (var(--reading-padding) * 2));
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin-inline: auto;
  padding-top: 1.5rem;
  padding-right: var(--reading-padding);
  padding-bottom: 3rem;
  padding-left: var(--reading-padding);
}

.post-nav-card {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 7rem;
  flex-direction: column;
  justify-content: center;
  padding: 1.15rem;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-text);
  text-decoration: none;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.post-nav-card:hover {
  border-color: color-mix(in srgb, var(--color-accent) 45%, var(--color-border));
  box-shadow: var(--shadow-panel);
  transform: translateY(-2px);
}

.post-nav-label {
  margin-bottom: 0.45rem;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.post-nav-card strong {
  font-family: var(--font-display);
  font-size: 0.98rem;
  line-height: 1.55;
  text-wrap: pretty;
}

@media (max-width: 860px) {
  .article-grid {
    grid-template-columns: 1fr;
  }

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

  :is(.article-body, .post-body, article[data-blog-article]) table {
    display: block;
    width: fit-content;
    max-width: 100%;
    overflow-x: auto;
  }
}

@media (max-width: 720px) {
  .blog-catalog-head {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .article-card {
    min-height: 0;
  }

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

  .promo-block {
    grid-template-columns: 1fr;
  }

  .promo-block .btn {
    width: fit-content;
  }

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

@media (max-width: 640px) {
  .no-break {
    white-space: normal;
  }

  .blog-index-hero {
    padding-top: 4rem;
    padding-bottom: 3.5rem;
  }

  .blog-index-hero::before,
  .blog-index-hero::after {
    width: 82vw;
  }

  .blog-index-hero h1 {
    font-size: clamp(2.15rem, 11vw, 2.65rem);
  }

  .breadcrumbs,
  .article-hero,
  .reading-wrap,
  .promo-block,
  #related-posts,
  .post-navigation {
    width: calc(100% - 1rem);
  }

  .breadcrumbs,
  .article-hero,
  .reading-wrap,
  #related-posts,
  .post-navigation {
    padding-right: 0.75rem;
    padding-left: 0.75rem;
  }

  .article-hero {
    padding-top: 3.25rem;
  }

  .article-meta {
    gap: 0.4rem;
  }

  .article-meta > * {
    padding: 0.3rem 0.5rem;
  }

  .blog-filters {
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .tag-filter {
    flex: 0 0 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tag-filter,
  .article-card,
  .article-card::before,
  .related-card,
  .related-card::before,
  .post-nav-card,
  .post-nav-card::before {
    transition: none;
  }

  .tag-filter:hover,
  .article-card:hover,
  .related-card:hover,
  .post-nav-card:hover {
    transform: none;
  }
}