@charset "utf-8";

:root {
  color-scheme: light;
  --surface: #fbfbfa;
  --surface-raised: #ffffff;
  --ink: #252a2f;
  --muted: #5f6b75;
  --faint: #87919a;
  --border: #d9dee2;
  --accent: #315b78;
  --accent-strong: #214a67;
  --code: #eef2f4;
  --quote: #f2f5f6;
  --focus: #a8442b;
  --control: #f4f6f7;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --surface: #171b1f;
  --surface-raised: #1d2328;
  --ink: #edf1f2;
  --muted: #b5c0c7;
  --faint: #8f9ca5;
  --border: #3a454d;
  --accent: #9bc0da;
  --accent-strong: #c1def0;
  --code: #222b32;
  --quote: #20292f;
  --focus: #f0b37e;
  --control: #22292f;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--surface);
}

body {
  min-width: 18rem;
  min-height: 100vh;
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", "Noto Sans", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
}

button,
input {
  font: inherit;
}

button,
summary {
  cursor: pointer;
}

a {
  color: var(--accent);
  text-decoration-line: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

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

a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

button {
  color: inherit;
}

img,
video,
svg {
  max-width: 100%;
}

img {
  height: auto;
}

[hidden] {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 1rem;
  padding: 0.55rem 0.75rem;
  background: var(--surface-raised);
  color: var(--ink);
  border: 1px solid var(--border);
  transform: translateY(-180%);
}

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

.site-shell {
  width: min(84rem, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: relative;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4rem;
  gap: 1.5rem;
}

.site-brand {
  flex: 0 0 auto;
  color: var(--ink);
  font-size: 1.02rem;
  font-weight: 680;
  letter-spacing: -0.015em;
  text-decoration: none;
  white-space: nowrap;
}

.site-brand:hover {
  color: var(--accent-strong);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.3rem;
  min-width: 0;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 0.1rem;
}

.site-nav__link,
.site-nav__mobile-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.45rem 0.6rem;
  color: var(--muted);
  font-size: 0.86rem;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav__link:hover,
.site-nav__link[aria-current="page"],
.site-nav__mobile-link:hover,
.site-nav__mobile-link[aria-current="page"] {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.25em;
}

.site-control {
  min-height: 2.75rem;
  padding: 0.45rem 0.65rem;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.2;
}

.site-control:hover {
  border-color: var(--border);
  background: var(--control);
  color: var(--ink);
}

.site-nav__mobile {
  display: none;
  position: relative;
}

.site-nav__mobile summary {
  display: flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.45rem 0.65rem;
  color: var(--muted);
  font-size: 0.84rem;
  list-style: none;
}

.site-nav__mobile summary::-webkit-details-marker {
  display: none;
}

.site-nav__mobile summary::after {
  margin-left: 0.45rem;
  content: "+";
  color: var(--faint);
  font-size: 1.1rem;
  line-height: 1;
}

.site-nav__mobile[open] summary::after {
  content: "−";
}

.site-nav__mobile-panel {
  position: absolute;
  z-index: 10;
  top: calc(100% + 0.25rem);
  right: 0;
  display: grid;
  min-width: 13rem;
  padding: 0.35rem;
  border: 1px solid var(--border);
  background: var(--surface-raised);
}

.site-nav__mobile-link {
  width: 100%;
}

.site-main {
  padding: clamp(2.25rem, 5vw, 4.75rem) 0 4.5rem;
}

.home-layout {
  width: min(72rem, calc(100% - 2rem));
  margin-inline: auto;
}

.home-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 8.5rem;
  gap: clamp(2rem, 7vw, 7rem);
  align-items: start;
  max-width: 68rem;
  margin-inline: auto;
  margin-bottom: clamp(3rem, 8vw, 6rem);
}

.home-intro__copy {
  max-width: 68ch;
}

.home-intro__portrait {
  width: 8rem;
  height: 8rem;
  object-fit: cover;
  border: 1px solid var(--border);
}

.home-title,
.page-title,
.taxonomy-title {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.35rem, 5vw, 4.25rem);
  font-weight: 680;
  letter-spacing: -0.045em;
  line-height: 1.02;
}

.home-description,
.page-description,
.taxonomy-description {
  max-width: 52ch;
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.35rem);
  line-height: 1.45;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  margin-top: 1.5rem;
  font-size: 0.9rem;
}

.prose {
  max-width: 68ch;
  color: var(--ink);
  font-size: 1.06rem;
  line-height: 1.76;
}

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

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

.prose p,
.prose ul,
.prose ol,
.prose blockquote,
.prose figure,
.prose table,
.prose pre {
  margin-block: 1.15em;
}

.prose h2,
.prose h3,
.prose h4 {
  color: var(--ink);
  font-weight: 680;
  letter-spacing: -0.025em;
  line-height: 1.18;
  scroll-margin-top: 1.5rem;
}

.prose h2 {
  margin-top: 2.55em;
  margin-bottom: 0.7em;
  font-size: 1.7rem;
}

.prose h3 {
  margin-top: 2.1em;
  margin-bottom: 0.55em;
  font-size: 1.3rem;
}

.prose h4 {
  margin-top: 1.8em;
  margin-bottom: 0.5em;
  font-size: 1.08rem;
}

.prose ul,
.prose ol {
  padding-inline-start: 1.45rem;
}

.prose li + li {
  margin-top: 0.35rem;
}

.prose strong {
  font-weight: 680;
}

.prose blockquote {
  padding: 0.35rem 1.2rem;
  border-inline-start: 3px solid var(--accent);
  background: var(--quote);
  color: var(--muted);
}

.prose hr {
  margin: 2.5rem 0;
  border: 0;
  border-top: 1px solid var(--border);
}

.prose code,
.prose pre {
  font-family: "SFMono-Regular", "Cascadia Code", "Roboto Mono", Consolas, "Liberation Mono", monospace;
}

.prose :not(pre) > code {
  padding: 0.12em 0.3em;
  background: var(--code);
  color: var(--ink);
  font-size: 0.88em;
}

.prose pre {
  max-width: 100%;
  margin-inline: 0;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  border: 1px solid var(--border);
  background: var(--code);
  color: var(--ink);
  font-size: 0.86em;
  line-height: 1.58;
  white-space: pre;
  tab-size: 2;
}

.prose pre code {
  padding: 0;
  background: transparent;
}

.prose table {
  display: block;
  width: max-content;
  min-width: 100%;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  border-spacing: 0;
  font-size: 0.93em;
}

.prose th,
.prose td {
  padding: 0.65rem 0.8rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.prose th {
  font-weight: 680;
}

.prose figure {
  margin-inline: 0;
  text-align: center;
}

.prose figure img,
.prose center img {
  display: block;
  margin-inline: auto;
}

.prose figcaption {
  margin-top: 0.55rem;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.45;
}

.prose center {
  display: block;
  margin-block: 1.75rem;
}

.prose img {
  display: block;
  max-height: 45rem;
  margin-block: 1.7rem;
}

.prose a {
  overflow-wrap: anywhere;
}

.reading-layout {
  display: grid;
  grid-template-columns: minmax(11rem, 14rem) minmax(0, 68ch);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
  width: min(calc(100% - 2rem), calc(68ch + 14rem + 5rem));
  margin-inline: auto;
}

.reading-layout:has(.desktop-toc:not([open])) {
  grid-template-columns: 2.75rem minmax(0, 68ch);
  gap: 1rem;
  width: min(calc(100% - 2rem), calc(2.75rem + 68ch + 1rem));
}

.reading-column {
  min-width: 0;
}

.article-header {
  margin-bottom: 2rem;
  padding-bottom: 1.45rem;
  border-bottom: 1px solid var(--border);
}

.article-kicker {
  margin: 0 0 0.9rem;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.09em;
  line-height: 1.4;
  text-transform: uppercase;
}

.article-kicker a {
  color: var(--muted);
  text-decoration-thickness: 0.07em;
}

.article-title {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.15rem, 5vw, 3.7rem);
  font-weight: 680;
  letter-spacing: -0.045em;
  line-height: 1.03;
  text-wrap: balance;
}

.article-description {
  max-width: 58ch;
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.25rem);
  line-height: 1.48;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

.article-meta a {
  color: var(--muted);
}

.mobile-toc {
  display: none;
}

.article-aside {
  position: sticky;
  top: 1.5rem;
  min-width: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.45;
}

.desktop-toc summary {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 2.75rem;
  padding-block: 0.65rem;
  color: var(--ink);
  font-size: 0.76rem;
  font-weight: 680;
  letter-spacing: 0.09em;
  line-height: 1.4;
  list-style: none;
  text-transform: uppercase;
}

.desktop-toc summary::-webkit-details-marker {
  display: none;
}

.desktop-toc summary::before {
  content: "‹";
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1;
}

.desktop-toc:not([open]) summary {
  justify-content: center;
  width: 2.75rem;
  padding: 0;
}

.desktop-toc:not([open]) summary::before {
  content: "›";
}

.desktop-toc:not([open]) summary span {
  display: none;
}

.desktop-toc nav {
  padding-top: 0.15rem;
}

.toc-list,
.toc-list ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc-list {
  border-inline-start: 1px solid var(--border);
}

.toc-list a {
  display: block;
  padding: 0.32rem 0.75rem;
  color: var(--muted);
  text-decoration: none;
}

.toc-list a:hover,
.toc-list a:focus-visible {
  color: var(--ink);
  text-decoration: underline;
}

.toc-list ul {
  padding-inline-start: 0.8rem;
}

.article-footer {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.article-tags-label {
  margin: 0 0 0.5rem;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.9rem;
}

.tag-list li:not(:last-child)::after {
  margin-left: 1rem;
  color: var(--faint);
  content: "/";
}

.prose-layout {
  width: min(68ch, 100%);
  margin-inline: auto;
}

.site-main > .prose-layout,
.comments .prose-layout {
  width: min(calc(100% - 2rem), 68ch);
}

.page-header {
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.page-title {
  font-size: clamp(2.15rem, 5vw, 3.7rem);
}

.editorial-intro {
  width: min(68ch, 100%);
  margin: 0 auto 2.7rem;
}

.editorial-intro .page-title,
.editorial-intro .taxonomy-title {
  font-size: clamp(2.15rem, 5vw, 3.7rem);
}

.editorial-intro .prose {
  margin-top: 1.5rem;
}

.editorial-list {
  width: min(68ch, 100%);
  margin-inline: auto;
}

.editorial-list__heading,
.featured-list__heading {
  margin: 0 0 0.2rem;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 680;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.post-listing {
  padding: 1.45rem 0 1.65rem;
  border-top: 1px solid var(--border);
}

.post-listing:last-child {
  border-bottom: 1px solid var(--border);
}

.post-listing__title {
  margin: 0;
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  font-weight: 680;
  letter-spacing: -0.025em;
  line-height: 1.18;
}

.post-listing__title a {
  color: var(--ink);
  text-decoration: none;
}

.post-listing__title a:hover {
  color: var(--accent-strong);
  text-decoration: underline;
}

.post-listing__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.9rem;
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.post-listing__description {
  max-width: 62ch;
  margin: 0.65rem 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.post-listing__category {
  margin: 0 0 0.55rem;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.post-listing__category a {
  color: var(--muted);
}

.post-listing__link {
  display: inline-block;
  margin-top: 0.8rem;
  font-size: 0.9rem;
}

.featured-list {
  width: min(68ch, 100%);
  margin: 0 auto;
}

.featured-list__heading {
  margin-bottom: 0.7rem;
}

.taxonomy-page {
  width: min(68ch, calc(100% - 2rem));
  margin-inline: auto;
}

.taxonomy-terms {
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--border);
}

.taxonomy-term {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.taxonomy-term a {
  font-size: 1.1rem;
}

.taxonomy-term__count {
  color: var(--muted);
  font-size: 0.85rem;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  padding-bottom: 3rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.pagination a {
  min-height: 2.75rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--border);
  background: var(--surface-raised);
}

.pagination a:hover {
  background: var(--control);
}

.post-pagination {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  max-width: calc(68ch + 14rem + 5rem);
  padding-top: 1.5rem;
  padding-bottom: 2.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
}

.post-pagination a {
  max-width: 32ch;
}

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.82rem;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.6rem 2rem;
  padding-block: 1.4rem 1.8rem;
}

.site-footer p {
  margin: 0;
}

.site-footer .social-links {
  margin: 0;
  gap: 0.25rem 0.9rem;
}

.search-modal {
  position: fixed;
  z-index: 30;
  inset: 0;
  display: grid;
  place-items: start center;
  padding: 8vh 1rem;
  background: rgb(19 25 29 / 72%);
}

.search-modal__backdrop {
  position: absolute;
  inset: 0;
}

.search-dialog {
  position: relative;
  width: min(100%, 42rem);
  max-height: 84vh;
  overflow-y: auto;
  border: 1px solid var(--border);
  background: var(--surface-raised);
}

.search-dialog__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--border);
}

.search-dialog__header h2 {
  margin: 0;
  font-size: 1rem;
  font-weight: 680;
}

.search-input {
  display: block;
  width: calc(100% - 2rem);
  min-height: 2.9rem;
  margin: 1rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink);
}

.search-results {
  padding: 0 1rem 1rem;
}

.search-result {
  padding: 1rem 0;
  border-top: 1px solid var(--border);
}

.search-result h3 {
  margin: 0;
  font-size: 1.05rem;
}

.search-result p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.search-results__empty {
  padding: 1rem 0;
  color: var(--muted);
}

@media (max-width: 72rem) {
  .site-nav__links {
    display: none;
  }

  .site-nav__mobile {
    display: block;
  }
}

@media (max-width: 46rem) {
  .site-shell {
    width: calc(100% - 2rem);
  }

  .site-header__inner {
    min-height: 3.5rem;
    gap: 0.35rem;
  }

  .site-brand {
    flex: 1 1 auto;
    min-width: 0;
    max-width: 11rem;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .site-nav {
    gap: 0;
  }

  .site-control,
  .site-nav__mobile summary {
    padding-inline: 0.5rem;
  }

  .site-main {
    padding-top: 2rem;
  }

  .home-intro {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 3rem;
  }

  .home-intro__portrait {
    order: -1;
    width: 5.5rem;
    height: 5.5rem;
  }

  .reading-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .article-aside {
    display: none;
  }

  .mobile-toc {
    display: block;
    margin-bottom: 1.75rem;
    border-bottom: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.9rem;
  }

  .mobile-toc summary {
    min-height: 2.75rem;
    padding-block: 0.65rem;
    color: var(--ink);
    font-weight: 600;
  }

  .mobile-toc nav {
    padding-bottom: 0.75rem;
  }

  .mobile-toc .toc-list a {
    min-height: 2.75rem;
    padding-block: 0.65rem;
  }

  .article-title,
  .page-title,
  .taxonomy-title {
    font-size: clamp(2rem, 11vw, 3rem);
  }

  .prose {
    font-size: 1rem;
  }

  .prose pre {
    margin-inline: -0.25rem;
  }

  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

.rich-chart,
.rich-diagram,
.rich-map,
.rich-gallery {
  width: 100%;
  max-width: 100%;
  margin-block: 1.75rem;
  overflow: auto;
}

.rich-chart {
  min-height: 18rem;
}

.rich-chart svg {
  display: block;
  width: 100%;
  min-width: 28rem;
  height: auto;
}

.rich-diagram {
  min-height: 8rem;
  padding: 1rem;
  border: 1px solid var(--border);
  background: var(--code);
  white-space: pre;
}

.rich-map {
  min-height: 28rem;
  border: 1px solid var(--border);
  background: var(--code);
}

.video-embed {
  width: 100%;
  margin-block: 1.75rem;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--code);
}

.video-embed iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.rich-gallery {
  min-height: 16rem;
  border: 1px solid var(--border);
  background: var(--code);
}

.rich-gallery > a {
  display: inline-block;
  margin: 0.35rem;
  vertical-align: top;
}

.rich-gallery img {
  max-height: 14rem;
  margin: 0;
}

.rich-gallery,
.rich-gallery * {
  animation: none !important;
  transition: none !important;
}

@media (min-width: 72.01rem) {
  .site-nav__mobile {
    display: none;
  }
}