:root {
  --blog-title-size: clamp(2.1rem, 6vw, 3rem);
  --article-title-size: clamp(2rem, 5vw, 2.6rem);
  --article-h2-size: clamp(1.35rem, 3vw, 1.6rem);
  --article-h3-size: clamp(1.15rem, 2vw, 1.3rem);
  --article-body-size: 1rem;
  --article-small-size: 0.82rem;
  --article-meta-size: 0.78rem;
  --article-line-height: 1.85;
  --article-heading-line-height: 1.25;
  --blog-card-title-size: clamp(1.25rem, 3vw, 1.65rem);
  --blog-lead-size: clamp(1rem, 2vw, 1.15rem);
  --blog-modal-title-size: clamp(1.45rem, 4vw, 2rem);
  --blog-letter-spacing: -0.015em;
  --blog-meta-letter-spacing: 0.04em;
  --blog-rule-width: 0.18rem;
  --blog-thin-rule: 0.0625rem;
  --blog-card-gap: clamp(1.25rem, 3vw, 2rem);
  --blog-hero-space: clamp(4rem, 9vw, 7rem);
  --blog-section-space: clamp(3.5rem, 8vw, 6rem);
  --blog-modal-width: 34rem;
  --blog-control-size: 2.75rem;
  --blog-transition-fast: 160ms;
  --blog-transition-normal: 240ms;
  --blog-overlay-opacity: 0.78;
}

.blog-index {
  min-height: calc(100vh - var(--header-height));
}

.blog-list-hero {
  position: relative;
  overflow: hidden;
  padding-block: var(--blog-hero-space);
  border-bottom: var(--blog-rule-width) solid var(--color-border);
  background:
    linear-gradient(var(--color-grid) var(--blog-thin-rule), transparent var(--blog-thin-rule)),
    linear-gradient(90deg, var(--color-grid) var(--blog-thin-rule), transparent var(--blog-thin-rule)),
    var(--color-bg);
  background-size: 5rem 5rem;
}

.blog-list-hero::after {
  position: absolute;
  right: -12rem;
  bottom: -19rem;
  width: 36rem;
  height: 36rem;
  border: var(--blog-thin-rule) solid var(--color-border);
  border-radius: var(--radius-pill);
  content: "";
  pointer-events: none;
}

.blog-page-title {
  position: relative;
  z-index: 1;
  max-width: 13ch;
  margin-block: 0.65rem 1rem;
  font-family: var(--font-display);
  font-size: var(--blog-title-size);
  line-height: var(--article-heading-line-height);
  letter-spacing: var(--blog-letter-spacing);
  text-wrap: pretty;
}

.blog-page-title::after {
  display: block;
  width: min(8rem, 35%);
  height: var(--blog-rule-width);
  margin-top: 1rem;
  background: var(--color-accent);
  content: "";
}

.blog-page-lead {
  position: relative;
  z-index: 1;
  max-width: 42rem;
  margin: 0;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-lead-size);
  line-height: 1.8;
}

.blog-catalog {
  padding-block: var(--blog-section-space);
}

.blog-catalog-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: var(--blog-rule-width) solid var(--color-border);
}

.blog-catalog-heading h2 {
  margin: 0.4rem 0 0;
  font-family: var(--font-display);
  font-size: var(--article-h2-size);
  line-height: var(--article-heading-line-height);
  letter-spacing: var(--blog-letter-spacing);
  text-wrap: pretty;
}

.blog-section-index,
.blog-result-status {
  margin: 0;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: var(--article-meta-size);
  letter-spacing: var(--blog-meta-letter-spacing);
  text-transform: uppercase;
}

.blog-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  padding-block: 1.5rem;
  border-bottom: var(--blog-thin-rule) solid var(--color-border-soft);
}

.blog-filter-button {
  min-height: var(--blog-control-size);
  padding: 0.65rem 1rem;
  border: var(--blog-thin-rule) solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg-panel);
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--article-small-size);
  cursor: pointer;
  transition:
    border-color var(--blog-transition-fast) ease,
    background-color var(--blog-transition-fast) ease,
    color var(--blog-transition-fast) ease;
}

.blog-filter-button:hover,
.blog-filter-button:focus-visible {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

.blog-filter-button.is-active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-text);
}

.blog-article-list {
  display: grid;
}

.blog-article-card {
  border-bottom: var(--blog-rule-width) solid var(--color-border);
  background: var(--color-bg);
}

.blog-article-card-link {
  display: grid;
  grid-template-columns: minmax(8rem, 0.35fr) minmax(0, 1.65fr);
  column-gap: var(--blog-card-gap);
  padding-block: clamp(1.6rem, 4vw, 2.6rem);
  color: var(--color-text);
  text-decoration: none;
  transition: background-color var(--blog-transition-fast) ease;
}

.blog-article-card-link:hover,
.blog-article-card-link:focus-visible {
  background: var(--color-bg-panel);
}

.article-card-meta {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.65rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: var(--article-meta-size);
  letter-spacing: var(--blog-meta-letter-spacing);
}

.article-tag {
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  padding: 0.2rem 0.55rem;
  border: var(--blog-thin-rule) solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: var(--article-meta-size);
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.blog-card-title {
  grid-column: 2;
  margin: -0.15rem 0 0.75rem;
  font-family: var(--font-display);
  font-size: var(--blog-card-title-size);
  line-height: 1.4;
  letter-spacing: var(--blog-letter-spacing);
  text-wrap: pretty;
}

.blog-card-summary {
  grid-column: 2;
  max-width: 44rem;
  margin: 0;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--article-body-size);
  line-height: 1.8;
}

.blog-card-action {
  grid-column: 2;
  margin-top: 1rem;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: var(--article-small-size);
}

.blog-empty {
  margin: 2rem 0 0;
  padding: 2rem;
  border: var(--blog-thin-rule) solid var(--color-border);
  background: var(--color-bg-panel);
  color: var(--color-text-muted);
  font-family: var(--font-body);
  text-align: center;
}

.article-breadcrumb {
  max-width: var(--reading-width);
  margin-inline: auto;
  margin-top: 1.5rem;
  padding-inline: var(--gutter);
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--article-small-size);
}

.article-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.article-breadcrumb a {
  color: var(--color-text-muted);
  text-decoration-color: var(--color-border);
  text-underline-offset: 0.2em;
}

.article-breadcrumb [aria-current="page"] {
  overflow: hidden;
  max-width: 34ch;
  color: var(--color-text);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article-hero,
.article-body,
.article-afterword {
  width: min(100% - (var(--gutter) * 2), 48rem);
  margin-inline: auto;
}

.article-hero {
  padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(2rem, 4vw, 3rem);
  border-bottom: var(--blog-rule-width) solid var(--color-border);
}

.article-hero-meta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 0.65rem 0.9rem;
  margin-bottom: 1rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: var(--article-meta-size);
  letter-spacing: var(--blog-meta-letter-spacing);
}

.article-hero h1 {
  max-width: 100%;
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--article-title-size);
  line-height: var(--article-heading-line-height);
  letter-spacing: var(--blog-letter-spacing);
  text-wrap: pretty;
}

.article-deck {
  margin: 1.25rem 0 0;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-lead-size);
  line-height: 1.8;
}

.article-body {
  padding-block: clamp(2rem, 5vw, 3.5rem);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--article-body-size);
  line-height: var(--article-line-height);
}

.article-body h2 {
  margin: 2.8rem 0 1rem;
  padding-bottom: 0.65rem;
  border-bottom: var(--blog-thin-rule) solid var(--color-border);
  font-family: var(--font-display);
  font-size: var(--article-h2-size);
  line-height: 1.35;
  letter-spacing: var(--blog-letter-spacing);
  text-wrap: pretty;
}

.article-body h2:first-child {
  margin-top: 0;
}

.article-body h3 {
  margin: 2rem 0 0.75rem;
  font-family: var(--font-display);
  font-size: var(--article-h3-size);
  line-height: 1.4;
  letter-spacing: var(--blog-letter-spacing);
  text-wrap: pretty;
}

.article-body p,
.article-body ul,
.article-body ol,
.article-body blockquote,
.article-body pre {
  margin-block: 0 1.35rem;
}

.article-body ul,
.article-body ol {
  padding-left: 1.4rem;
}

.article-body li + li {
  margin-top: 0.55rem;
}

.article-body a {
  color: var(--color-text);
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: var(--blog-thin-rule);
  text-underline-offset: 0.25em;
}

.article-body blockquote {
  padding: 1rem 1.25rem;
  border-left: var(--blog-rule-width) solid var(--color-border);
  background: var(--color-bg-panel);
  color: var(--color-text-muted);
}

.article-body pre {
  overflow-x: auto;
  padding: 1.25rem;
  border: var(--blog-thin-rule) solid var(--color-border);
  border-radius: var(--radius-none);
  background: var(--color-bg-panel);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: var(--article-small-size);
  line-height: 1.7;
}

.article-body code {
  font-family: var(--font-mono);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 10rem), 1fr));
  gap: 0.75rem;
  margin-block: 1.5rem;
}

.stat-card {
  min-width: 0;
  padding: 1.1rem;
  border-top: var(--blog-rule-width) solid var(--color-accent);
  background: var(--color-bg-panel);
}

.stat-num {
  display: block;
  overflow-wrap: anywhere;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: var(--article-h3-size);
  font-weight: 700;
}

.stat-label {
  display: block;
  margin-top: 0.4rem;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--article-small-size);
  line-height: 1.6;
}

.check-list {
  margin-block: 1.5rem;
  padding: 1.2rem 1.2rem 1.2rem 2.7rem;
  border: var(--blog-thin-rule) solid var(--color-border);
  background: var(--color-bg-panel);
}

.check-list li::marker {
  color: var(--color-success);
}

.verdict {
  margin-block: 1.5rem;
  padding: 1rem 1.25rem;
  border-left: var(--blog-rule-width) solid var(--color-accent);
  background: var(--color-bg-panel-2);
  color: var(--color-text);
}

.verdict strong {
  color: var(--color-text);
}

.promo-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 2rem;
  width: min(100% - (var(--gutter) * 2), 48rem);
  margin: 1rem auto clamp(3rem, 7vw, 5rem);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border-top: var(--blog-rule-width) solid var(--color-accent);
  border-bottom: var(--blog-rule-width) solid var(--color-border);
  border-radius: var(--radius-none);
  background: var(--color-bg-panel);
}

.promo-brand {
  margin: 0 0 0.55rem;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: var(--article-small-size);
  letter-spacing: var(--blog-meta-letter-spacing);
}

.promo-block h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--article-h2-size);
  line-height: 1.35;
  letter-spacing: var(--blog-letter-spacing);
  text-wrap: pretty;
}

.promo-block p:not(.promo-brand) {
  margin: 0.75rem 0 0;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--article-body-size);
  line-height: 1.75;
}

#related-posts,
#post-nav {
  width: min(100% - (var(--gutter) * 2), 48rem);
  margin-inline: auto;
}

#related-posts {
  padding-block: 0 clamp(2.5rem, 6vw, 4.5rem);
}

.related-heading {
  margin: 0 0 1rem;
  padding-bottom: 0.75rem;
  border-bottom: var(--blog-rule-width) solid var(--color-border);
  font-family: var(--font-display);
  font-size: var(--article-h2-size);
  line-height: 1.35;
  letter-spacing: var(--blog-letter-spacing);
  text-wrap: pretty;
}

.related-post-grid {
  display: grid;
  gap: 0;
}

.related-post-card {
  display: block;
  padding-block: 1.35rem;
  border-bottom: var(--blog-thin-rule) solid var(--color-border);
  color: var(--color-text);
  text-decoration: none;
  transition:
    background-color var(--blog-transition-fast) ease,
    padding-inline var(--blog-transition-fast) ease;
}

.related-post-card:hover,
.related-post-card:focus-visible {
  padding-inline: 1rem;
  background: var(--color-bg-panel);
}

.related-post-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: var(--article-meta-size);
}

.related-post-card h3 {
  margin: 0.7rem 0 0.45rem;
  font-family: var(--font-display);
  font-size: var(--article-h3-size);
  line-height: 1.45;
  letter-spacing: var(--blog-letter-spacing);
  text-wrap: pretty;
}

.related-post-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--article-small-size);
  line-height: 1.7;
}

.post-navigation {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.post-nav-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-width: 0;
  padding: 1.25rem;
  border: var(--blog-thin-rule) solid var(--color-border);
  background: var(--color-bg-panel);
  color: var(--color-text);
  text-decoration: none;
  transition:
    border-color var(--blog-transition-fast) ease,
    background-color var(--blog-transition-fast) ease;
}

.post-nav-card:hover,
.post-nav-card:focus-visible {
  border-color: var(--color-accent);
  background: var(--color-bg-panel-2);
}

.post-nav-label {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: var(--article-meta-size);
  letter-spacing: var(--blog-meta-letter-spacing);
}

.post-nav-card strong {
  font-family: var(--font-display);
  font-size: var(--article-body-size);
  line-height: 1.55;
  letter-spacing: var(--blog-letter-spacing);
  text-wrap: pretty;
}

.has-signup-modal {
  overflow: hidden;
}

.signup-modal {
  position: fixed;
  z-index: 1000;
  inset: 0;
  display: grid;
  place-items: center;
  padding: var(--gutter);
  background: color-mix(in srgb, var(--color-bg) calc(var(--blog-overlay-opacity) * 100%), transparent);
  opacity: 1;
  transition: opacity var(--blog-transition-normal) ease;
}

.signup-modal-panel {
  position: relative;
  width: min(100%, var(--blog-modal-width));
  padding: clamp(1.5rem, 5vw, 2.5rem);
  border-top: var(--blog-rule-width) solid var(--color-accent);
  border-right: var(--blog-thin-rule) solid var(--color-border);
  border-bottom: var(--blog-thin-rule) solid var(--color-border);
  border-left: var(--blog-thin-rule) solid var(--color-border);
  border-radius: var(--radius-none);
  background: var(--color-bg-panel);
  box-shadow: 0 1.5rem 4rem var(--color-shadow);
  transform: translateY(0);
  transition:
    opacity var(--blog-transition-normal) ease,
    transform var(--blog-transition-normal) ease;
}

.signup-modal.is-closing {
  opacity: 0;
}

.signup-modal.is-closing .signup-modal-panel {
  opacity: 0;
  transform: translateY(0.75rem);
}

.signup-modal-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  display: grid;
  width: var(--blog-control-size);
  height: var(--blog-control-size);
  place-items: center;
  padding: 0;
  border: var(--blog-thin-rule) solid var(--color-border);
  border-radius: var(--radius-small);
  background: var(--color-bg-panel-2);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--article-h3-size);
  cursor: pointer;
}

.signup-modal-close:hover,
.signup-modal-close:focus-visible {
  border-color: var(--color-accent);
}

.signup-modal-brand {
  margin: 0 0 0.65rem;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: var(--article-small-size);
  letter-spacing: var(--blog-meta-letter-spacing);
}

.signup-modal-panel h2 {
  max-width: 18ch;
  margin: 0;
  padding-right: 2.5rem;
  font-family: var(--font-display);
  font-size: var(--blog-modal-title-size);
  line-height: 1.3;
  letter-spacing: var(--blog-letter-spacing);
  text-wrap: pretty;
}

.signup-modal-panel > p:not(.signup-modal-brand) {
  margin: 1rem 0 1.5rem;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--article-body-size);
  line-height: 1.75;
}

.signup-modal-action {
  width: fit-content;
}

@media (max-width: 44rem) {
  .blog-catalog-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.75rem;
  }

  .blog-article-card-link {
    grid-template-columns: minmax(0, 1fr);
  }

  .blog-card-title,
  .blog-card-summary,
  .blog-card-action {
    grid-column: 1;
  }

  .blog-card-title {
    margin-top: 1rem;
  }

  .promo-block {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .post-navigation {
    grid-template-columns: minmax(0, 1fr);
  }
}

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