:root {
  --blog-bg: #ffffff;
  --blog-ink: #17201b;
  --blog-body: #2d3832;
  --blog-muted: #66736c;
  --blog-rule: #dbe2de;
  --blog-soft: #f2f6f4;
  --blog-accent: #286f68;
  --blog-accent-soft: #dcefeb;
  --blog-human: #9a5a2e;
  --blog-real: #4d5b88;
  --blog-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --blog-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

.blog-page {
  min-width: 320px;
  margin: 0;
  color: var(--blog-body);
  background: var(--blog-bg);
  font-family: var(--blog-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 10;
  padding: 8px 12px;
  color: #fff;
  background: var(--blog-accent);
  border-radius: 4px;
  text-decoration: none;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.blog-shell {
  width: min(1360px, calc(100% - 48px));
  display: grid;
  grid-template-columns: 220px minmax(0, 850px) 220px;
  grid-template-areas:
    "sidebar hero hero"
    "sidebar article notes";
  column-gap: 44px;
  justify-content: center;
  margin: 0 auto;
  padding: 34px 0 88px;
}

.blog-sidebar {
  grid-area: sidebar;
  min-width: 0;
  min-height: calc(100vh - 68px);
  padding-right: 22px;
  border-right: 1px solid var(--blog-rule);
  position: sticky;
  top: 28px;
  align-self: start;
}

.blog-mark {
  display: inline-block;
  color: var(--blog-ink);
  font-size: 15px;
  font-weight: 850;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.blog-mark::after {
  content: "";
  width: 6px;
  height: 6px;
  display: inline-block;
  margin: 0 0 0 4px;
  border-radius: 999px;
  background: var(--blog-accent);
}

.blog-toc {
  margin-top: 28px;
}

.blog-toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: toc-s;
}

.blog-toc li {
  counter-increment: toc-s;
  margin: 0 0 7px;
}

.blog-toc a {
  display: flex;
  gap: 5px;
  color: var(--blog-muted);
  font-size: 13.5px;
  font-weight: 400;
  line-height: 1.4;
  text-decoration: none;
}

.blog-toc a::before {
  content: counter(toc-s) ".";
  flex: 0 0 auto;
  min-width: 1em;
  color: var(--blog-rule);
  font-variant-numeric: tabular-nums;
}

.blog-toc a:hover,
.blog-toc a:focus-visible,
.blog-toc a[aria-current="true"] {
  color: var(--blog-accent);
  font-weight: 600;
}

.blog-hero {
  grid-area: hero;
  display: grid;
  place-items: center;
  min-height: 260px;
  padding: 54px 28px 42px;
  border: 1px solid var(--blog-rule);
  border-radius: 5px;
  color: var(--blog-ink);
  background: var(--blog-bg);
  text-align: center;
}

.blog-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 20px;
}

.blog-hero-btn {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  border: 1px solid var(--blog-rule);
  border-radius: 6px;
  color: var(--blog-ink);
  background: var(--blog-bg);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.blog-hero-btn:hover {
  border-color: var(--blog-accent);
  color: var(--blog-accent);
}

.blog-hero-btn.primary {
  border-color: var(--blog-accent);
  color: #fff;
  background: var(--blog-accent);
}

.blog-hero-btn.primary:hover {
  color: #fff;
  opacity: 0.88;
}

.blog-hero-btn.disabled {
  color: #89968f;
  background: #edf1ef;
  border-color: transparent;
  cursor: default;
  pointer-events: none;
}

.blog-hero-btn svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.blog-hero-btn-mark {
  width: 15px;
  height: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  background: var(--blog-accent);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  line-height: 1;
}

.blog-hero h1 {
  width: 100%;
  margin: 0;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 850;
  letter-spacing: -0.035em;
  line-height: 1.2;
  overflow-wrap: break-word;
  text-wrap: balance;
}

.blog-hero h1 .hero-human {
  color: var(--blog-human);
}

.blog-hero h1 .hero-sim {
  color: var(--blog-accent);
}

.blog-hero h1 .hero-real {
  color: var(--blog-real);
}

.blog-eyebrow,
.blog-kicker,
.search-problem-label {
  color: var(--blog-accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.3;
  text-transform: uppercase;
}

.blog-hero .blog-eyebrow {
  margin: 0 0 16px;
}

.blog-hero p {
  max-width: none;
  margin: 16px 0 0;
  color: var(--blog-muted);
  font-size: 16px;
  font-weight: 550;
  line-height: 1.35;
}

.blog-article {
  grid-area: article;
  min-width: 0;
}

.blog-article > section {
  width: 100%;
  margin-top: 42px;
  scroll-margin-top: 26px;
}

.blog-article > .blog-opening {
  width: 100%;
  margin-top: 30px;
}

.blog-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  margin-top: 24px;
}

.blog-meta-date {
  margin: 0 0 8px;
  color: #020807;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.2;
  white-space: nowrap;
}

.blog-meta-date + .blog-meta-team {
  margin-top: 0;
}

.blog-meta-date,
.blog-meta-team {
  color: var(--blog-ink);
}

.blog-meta-team {
  position: relative;
  margin: 0;
  color: #020807;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.18;
}

.blog-authors-trigger {
  cursor: default;
  text-decoration: underline dotted;
  text-decoration-color: var(--blog-muted);
  text-underline-offset: 3px;
}

.blog-authors-pop {
  display: none;
  position: absolute;
  left: 0;
  top: calc(100% + 8px);
  z-index: 40;
  width: 280px;
  max-width: min(92vw, 280px);
  background: var(--blog-bg);
  border: 1px solid var(--blog-rule);
  border-radius: 4px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.10);
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.75;
  color: var(--blog-body);
}

/* invisible bridge so hover survives the 8px gap from trigger to card */
.blog-authors-pop::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -12px;
  height: 12px;
}

.blog-meta-team:hover .blog-authors-pop,
.blog-meta-team:focus-within .blog-authors-pop {
  display: block;
}

.blog-authors-pop a {
  color: var(--blog-ink);
  text-decoration: underline;
  text-decoration-color: var(--blog-rule);
  text-underline-offset: 2px;
  white-space: nowrap;
}

.blog-authors-pop a:hover {
  color: var(--blog-accent);
  text-decoration-color: var(--blog-accent);
}

.blog-meta-readtime {
  display: inline-block;
  margin-top: 10px;
  padding: 3px 9px;
  border-radius: 6px;
  color: #64716b;
  background: #f0f4f2;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.15;
}

.blog-opening-copy {
  width: 100%;
  padding: 22px 24px;
  border: 1px solid var(--blog-rule);
  border-radius: 4px;
  background: var(--blog-soft);
}

.blog-opening-copy h2 {
  margin: 0 0 12px;
  color: var(--blog-ink);
  font-size: 22px;
  font-weight: 780;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.blog-opening-copy .blog-kicker {
  margin: 0 0 8px;
}

.blog-opening-copy p:last-child {
  margin-bottom: 0;
}

.blog-opening figure {
  width: 100%;
  margin: 28px 0;
}

.blog-opening figcaption {
  max-width: 100%;
}

.blog-article .blog-opening-teaser img {
  width: 80%;
  margin: 0 auto;
}

.blog-article h2 {
  margin: 0 0 12px;
  color: var(--blog-ink);
  font-size: 20px;
  font-weight: 780;
  letter-spacing: -0.015em;
  line-height: 1.25;
}

.blog-article .blog-kicker {
  margin: 0 0 8px;
}

.blog-article h3 {
  margin: 28px 0 10px;
  color: var(--blog-ink);
  font-size: 16px;
  font-weight: 760;
  line-height: 1.35;
}

.blog-article p,
.blog-article li {
  max-width: 100%;
}

.blog-article p {
  margin: 0 0 18px;
}

.blog-article a {
  color: inherit;
  text-decoration-color: rgba(40, 111, 104, 0.45);
  text-underline-offset: 0.15em;
}

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

.blog-article sup {
  color: var(--blog-body);
  font-size: 0.72em;
  font-weight: 400;
  line-height: 0;
}

.blog-article sup a {
  color: inherit;
  text-decoration: none;
}

.blog-ref-note {
  float: right;
  clear: right;
  width: 220px;
  margin: 2px -264px 16px 0;
  color: var(--blog-muted);
  font-size: 12.5px;
  line-height: 1.5;
}

.blog-ref-note::before {
  content: attr(data-n);
  margin-right: 5px;
  color: #9aa6a0;
  font-size: 0.85em;
  font-weight: 500;
  line-height: 0;
  vertical-align: super;
}

.blog-ref-note a {
  color: var(--blog-ink);
  text-decoration: underline;
  text-decoration-color: rgba(40, 111, 104, 0.35);
  text-underline-offset: 0.15em;
}

.blog-ref-note a:hover {
  color: var(--blog-accent);
  text-decoration-color: var(--blog-accent);
}

.blog-ref-note a.fn-back {
  margin-left: 5px;
  color: #9aa6a0;
  text-decoration: none;
}

.blog-ref-note:target {
  border-radius: 4px;
  background: var(--blog-accent-soft);
  outline: 4px solid var(--blog-accent-soft);
}

.blog-ref-note,
sup[id] {
  scroll-margin-top: 90px;
}

.blog-article figure {
  margin: 26px 0;
}

.blog-article img,
.blog-article video {
  width: 100%;
  display: block;
}

.blog-article figcaption {
  margin-top: 10px;
  color: var(--blog-muted);
  font-size: 13px;
  line-height: 1.45;
}

.blog-image-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  border: 1px dashed var(--blog-rule);
  border-radius: 4px;
  color: var(--blog-muted);
  background: linear-gradient(135deg, var(--blog-soft), #ffffff);
}

.blog-image-placeholder span {
  color: var(--blog-accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-small-image-figure img {
  width: 50%;
  min-width: 150px;
  margin: 0 auto;
}

.blog-article .blog-lead {
  padding: 20px 24px;
  border-radius: 4px;
  background: var(--blog-soft);
  color: var(--blog-ink);
  font-size: 18px;
  line-height: 1.5;
}

.blog-article .blog-full-width {
  width: 100%;
}

.blog-article .blog-note {
  padding-left: 16px;
  border-left: 2px solid var(--blog-accent);
  color: var(--blog-muted);
  font-size: 14px;
}

.blog-article .blog-callout {
  margin: 24px 0;
  padding: 18px 20px;
  border: 1px solid var(--blog-rule);
  border-radius: 4px;
  background: var(--blog-soft);
}

.blog-article .blog-callout p {
  margin: 0;
}

.blog-benefits {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 26px 0;
}

.blog-benefit {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  grid-template-rows: 34px auto;
  column-gap: 10px;
  row-gap: 6px;
  align-items: start;
  padding: 16px;
  border: 1px solid var(--blog-rule);
  border-radius: 4px;
  background: var(--blog-bg);
}

.blog-benefit-index {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  margin: 0;
  border-radius: 999px;
  color: #ffffff;
  background: var(--blog-accent);
  font-size: 12px;
  font-weight: 800;
  line-height: 1;
}

.blog-benefit h3 {
  margin: 0;
  font-size: 15px;
  line-height: 1.15;
}

.blog-benefit p:last-child {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--blog-muted);
  font-size: 13px;
  line-height: 1.5;
}

.blog-article .term {
  color: var(--blog-ink);
  font-family: var(--blog-mono);
  font-size: 0.9em;
  font-weight: 650;
}

.search-problem {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 26px 0;
  overflow: hidden;
  border: 1px solid var(--blog-rule);
  border-radius: 4px;
  background: var(--blog-rule);
}

.search-problem > div {
  padding: 20px;
  background: var(--blog-bg);
}

.search-problem h3 {
  margin: 4px 0 8px;
  color: var(--blog-accent);
  font-family: var(--blog-mono);
  font-size: 15px;
}

.search-problem p:last-child {
  margin: 0;
  color: var(--blog-muted);
  font-size: 14px;
  line-height: 1.55;
}

.blog-table-wrap {
  overflow-x: auto;
  width: min(100%, 620px);
  margin: 24px auto 28px;
  border: 1px solid var(--blog-rule);
  border-radius: 4px;
  background: var(--blog-bg);
}

.blog-data-table {
  width: 100%;
  min-width: 440px;
  border-collapse: collapse;
  color: var(--blog-body);
  font-size: 14px;
  line-height: 1.45;
}

.blog-data-table caption {
  padding: 13px 16px;
  border-bottom: 1px solid var(--blog-rule);
  color: var(--blog-muted);
  font-size: 13px;
  font-weight: 650;
  text-align: left;
}

.blog-data-table th,
.blog-data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--blog-rule);
  text-align: right;
  white-space: nowrap;
}

.blog-data-table th:first-child,
.blog-data-table td:first-child {
  text-align: left;
}

.blog-data-table thead th {
  color: var(--blog-ink);
  background: var(--blog-soft);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.blog-data-table tbody th {
  color: var(--blog-ink);
  font-weight: 750;
}

.blog-data-table tbody tr:last-child th,
.blog-data-table tbody tr:last-child td {
  border-bottom: 0;
}

.blog-data-table strong {
  color: var(--blog-accent);
}
.blog-equation {
  overflow-x: auto;
  margin: 18px 0;
  padding: 8px 18px;
  border-left: 2px solid var(--blog-accent);
  background: var(--blog-soft);
  color: var(--blog-ink);
}

.blog-equation mjx-container[display="true"] {
  margin: 0;
}

.blog-media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 26px 0;
}

.blog-media-grid-stacked {
  grid-template-columns: 1fr;
  gap: 28px;
}

.blog-media-grid figure,
.blog-media-stack figure {
  margin: 0;
}

.blog-media-grid figure > figcaption:first-child {
  margin: 0 0 10px;
  color: var(--blog-ink);
  font-size: 13px;
  font-weight: 750;
}

.blog-media-stack {
  display: grid;
  gap: 28px;
  margin: 26px 0;
}

.blog-related-item {
  margin: 28px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--blog-rule);
}

.blog-related-item h3 {
  margin-top: 0;
}

.blog-related-item p:last-child {
  margin-bottom: 0;
}

.blog-article video {
  background: #000;
}
.blog-article pre {
  overflow-x: auto;
  padding: 18px;
  border-radius: 4px;
  color: #edf6f1;
  background: #17201b;
  font-family: var(--blog-mono);
  font-size: 13px;
  line-height: 1.5;
}

@media (max-width: 1180px) {
  .blog-article .blog-opening-teaser img,
  .blog-small-image-figure img,
  .blog-prior-small-figure img,
  .blog-narrow-figure img {
    width: 100%;
    min-width: 0;
  }

  .blog-shell {
    width: min(724px, calc(100% - 40px));
    display: flex;
    flex-direction: column;
    gap: 22px;
    padding-top: 22px;
  }

  .blog-sidebar {
    order: 2;
    min-height: auto;
    padding: 0 0 15px;
    border-right: 0;
    border-bottom: 1px solid var(--blog-rule);
    position: static;
  }

  .blog-hero {
    order: 1;
  }

  .blog-article {
    order: 3;
  }

  .blog-meta {
    margin-top: 16px;
  }

  .blog-meta-date + .blog-meta-team {
    margin-top: 0;
  }

  .blog-meta-readtime {
    margin-top: 10px;
  }

  .blog-toc {
    margin-top: 18px;
  }

  .blog-hero {
    min-height: 220px;
    padding: 44px 22px 36px;
  }

  .search-problem,
  .blog-media-grid,
  .blog-benefits {
    grid-template-columns: 1fr;
  }

  .blog-ref-note {
    float: none;
    clear: none;
    width: auto;
    display: block;
    margin: 6px 0;
  }

}

@media (max-width: 520px) {
  .blog-shell {
    width: min(100% - 28px, 724px);
    padding-bottom: 52px;
  }

  .blog-hero {
    min-height: 205px;
    padding: 38px 18px 30px;
  }

  .blog-hero p {
    font-size: 16px;
  }

  .blog-article .blog-lead {
    padding: 17px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}



.blog-prior-small-figure img {
  width: 80%;
  margin: 0 auto;
}

.blog-narrow-figure img {
  width: 40%;
  margin: 0 auto;
}

.blog-hero .hero-title-main,
.blog-hero .hero-title-hugs {
  display: block;
}

.blog-hero .hero-title-hugs {
  margin-top: 8px;
  color: var(--blog-ink);
  font-size: 0.98em;
  font-weight: 820;
  letter-spacing: -0.015em;
}

.blog-hero .hero-title-hugs span {
  color: var(--blog-accent);
  font-size: 1.08em;
  font-weight: 900;
}