.subpage {
  min-height: 100vh;
}

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

.subpage-header,
.subpage-main {
  width: min(86rem, calc(100vw - 2.8rem));
  margin: 0 auto;
}

.subpage-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.4rem 0 1.1rem;
  border-bottom: 1px solid var(--line);
}

.subpage-brand,
.subpage-nav a {
  font-size: 0.92rem;
}

.subpage-brand {
  font-family: var(--display);
  font-size: 1.4rem;
  letter-spacing: 0.06em;
}

.subpage-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--muted);
}

.subpage-nav a[aria-current="page"] {
  color: var(--ink);
}

.subpage-main {
  display: grid;
  gap: 2rem;
  padding: 2rem 0 5rem;
}

.single-reader-main {
  width: min(64rem, calc(100vw - 2.8rem));
}

.article-back-link {
  width: fit-content;
  font-size: 0.92rem;
  color: var(--muted);
}

.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(20rem, 0.92fr);
  gap: 1.2rem;
}

.page-panel,
.page-image-panel,
.page-card,
.page-entry,
.page-gallery-item,
.page-metric {
  border: 1px solid var(--line);
  border-radius: 12px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.22), transparent 24%),
    var(--surface);
}

.page-panel {
  padding: 1.35rem;
  display: grid;
  gap: 1rem;
}

.page-kicker,
.page-entry-meta,
.page-metric span,
.page-gallery-caption span {
  margin: 0;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-title,
.page-section-title,
.page-entry h2,
.page-entry h3,
.page-gallery-caption strong {
  margin: 0;
  font-family: var(--display);
  line-height: 0.92;
  text-transform: uppercase;
}

.page-title {
  font-size: clamp(3.4rem, 8vw, 5.8rem);
}

.page-deck,
.page-text p,
.page-entry p {
  margin: 0;
  line-height: 1.7;
}

.page-image-panel {
  overflow: hidden;
  min-height: 24rem;
}

.page-image-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 58% center;
}

.page-section {
  display: grid;
  gap: 1rem;
}

.page-section-head {
  display: grid;
  gap: 0.45rem;
}

.page-section-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
}

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

.page-text {
  display: grid;
  gap: 1rem;
}

.page-metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.page-metric {
  padding: 1rem;
  display: grid;
  gap: 0.35rem;
}

.page-metric strong {
  font-size: 1rem;
  line-height: 1.4;
}

.page-list {
  display: grid;
  gap: 1rem;
}

.page-entry {
  display: grid;
  gap: 0.9rem;
  padding: 1.2rem;
}

.page-entry-row {
  display: grid;
  grid-template-columns: minmax(8rem, 0.55fr) minmax(0, 1.4fr) minmax(14rem, 1fr);
  gap: 1rem;
  align-items: start;
}

.page-entry h2,
.page-entry h3 {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.page-entry-title-line {
  display: inline-flex;
  align-items: flex-start;
  gap: 0.78rem;
  flex-wrap: wrap;
}

.page-entry-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  color: var(--muted);
  transform: translateY(0.08em);
  transition:
    transform 140ms ease,
    color 140ms ease,
    opacity 140ms ease;
}

.page-entry-arrow:hover,
.page-entry-arrow:focus-visible {
  color: var(--ink);
  transform: translate(0.18rem, 0.08em);
}

.page-entry-arrow:focus-visible {
  outline: none;
}

.page-gallery-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1rem;
}

.page-gallery-item {
  position: relative;
  min-height: 18rem;
  overflow: hidden;
}

.page-gallery-item[data-size="wide"] {
  grid-column: span 7;
}

.page-gallery-item[data-size="tall"] {
  grid-column: span 5;
  min-height: 28rem;
}

.page-gallery-item[data-size="square"] {
  grid-column: span 4;
}

.page-gallery-art {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(248, 248, 246, 0.2), transparent 28%),
    radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.38), transparent 26%),
    radial-gradient(circle at 78% 72%, rgba(98, 104, 110, 0.36), transparent 24%),
    linear-gradient(160deg, rgba(23, 28, 34, 0.92), rgba(92, 98, 104, 0.72));
}

.page-gallery-art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-gallery-caption {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  display: grid;
  gap: 0.35rem;
  color: #f2f6e7;
}

.page-gallery-caption strong {
  font-size: 2rem;
}

.article-browser {
  display: grid;
  grid-template-columns: minmax(18rem, 0.42fr) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.article-sidebar {
  position: sticky;
  top: 1.25rem;
}

.article-sidebar-head {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.article-index {
  display: grid;
  gap: 0.75rem;
}

.article-index-item {
  width: 100%;
  padding: 0.95rem 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  display: grid;
  gap: 0.35rem;
}

.article-index-item span,
.article-index-item em {
  margin: 0;
  font-size: 0.78rem;
  font-style: normal;
  line-height: 1.5;
  color: var(--muted);
}

.article-index-item strong,
.markdown-head h1,
.markdown-head h2 {
  margin: 0;
  font-family: var(--display);
  line-height: 0.94;
  text-transform: uppercase;
}

.article-index-item strong {
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
}

.article-index-item.is-active {
  border-color: var(--line-strong);
  background: rgba(16, 26, 36, 0.06);
}

.markdown-reader {
  padding: 1.35rem;
  display: grid;
  gap: 1.25rem;
}

.article-cover {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(16, 26, 36, 0.06);
}

.article-cover img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}

.markdown-head {
  display: grid;
  gap: 0.75rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.markdown-head h1,
.markdown-head h2 {
  font-size: clamp(2.7rem, 5vw, 4.4rem);
}

.markdown-body {
  display: grid;
  gap: 1rem;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  margin: 0.6rem 0 0;
  font-family: var(--display);
  line-height: 0.94;
  text-transform: uppercase;
}

.markdown-body h1 {
  margin-top: 1.8rem;
  font-size: clamp(2.4rem, 4vw, 3.4rem);
}

.markdown-body > h1:first-child {
  margin-top: 0;
}

.markdown-body h2 {
  font-size: clamp(2rem, 3.6vw, 2.8rem);
}

.markdown-body h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.markdown-body p,
.markdown-body li,
.markdown-body blockquote {
  margin: 0;
  line-height: 1.75;
}

.writing-post-page .markdown-body > p {
  text-indent: 0.5em;
}

.introduction-flow {
  display: block;
}

.introduction-flow::after {
  content: "";
  display: block;
  clear: both;
}

.introduction-flow > * + * {
  margin-top: 1rem;
}

.introduction-page .markdown-body p,
.introduction-page .markdown-body li,
.introduction-page .markdown-body blockquote {
  line-height: 1.92;
}

.introduction-page .markdown-body h1 {
  margin-top: 2rem;
  margin-bottom: 0.9rem;
}

.introduction-page .markdown-body > h1:first-child {
  margin-top: 0;
}

.introduction-page .markdown-body h2 {
  margin-top: 2.2rem;
  margin-bottom: 0.8rem;
}

.introduction-page .markdown-body > h2:first-child {
  margin-top: 0.5rem;
}

.introduction-page .markdown-body h3 {
  margin-top: 1.45rem;
  margin-bottom: 0.55rem;
}

.introduction-flow > .introduction-portrait + h1,
.introduction-flow > .introduction-portrait + h2,
.introduction-flow > .introduction-portrait + h3 {
  margin-top: 0.3rem;
}

.introduction-portrait {
  float: right;
  width: min(18.5rem, 40%);
  margin: 0 0 1.2rem 1.5rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.22), transparent 24%),
    var(--surface);
}

.introduction-portrait img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.introduction-portrait-empty {
  aspect-ratio: 4 / 5;
  display: grid;
  place-items: center;
  color: var(--muted);
}

.introduction-portrait-empty span {
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.markdown-body ul,
.markdown-body ol {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.45rem;
}

.markdown-body li > ul,
.markdown-body li > ol {
  margin-top: 0.55rem;
}

.markdown-body .markdown-task-list {
  padding-left: 0;
  list-style: none;
}

.markdown-body .markdown-task-list > li {
  display: grid;
  grid-template-columns: 1.1rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: start;
}

.markdown-task-box {
  position: relative;
  display: inline-flex;
  width: 1.05rem;
  height: 1.05rem;
  margin-top: 0.28rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.28rem;
  background: #fff;
}

.markdown-body li[data-checkbox="true"] > .markdown-task-box {
  border-color: #101a24;
  background: #101a24;
}

.markdown-body li[data-checkbox="true"] > .markdown-task-box::after {
  content: "";
  position: absolute;
  left: 0.3rem;
  top: 0.12rem;
  width: 0.22rem;
  height: 0.48rem;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(45deg);
}

.markdown-task-content {
  min-width: 0;
}

.markdown-body li[data-checkbox="true"] > .markdown-task-content {
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}

.markdown-body blockquote {
  padding-left: 1rem;
  border-left: 2px solid var(--line-strong);
  color: var(--muted);
}

.markdown-body hr {
  width: 100%;
  height: 1px;
  margin: 0.4rem 0;
  border: 0;
  background: var(--line);
}

.markdown-body pre {
  margin: 0;
  padding: 1rem;
  overflow: auto;
  border-radius: 10px;
  background: rgba(16, 26, 36, 0.94);
  color: #edf2f7;
}

.markdown-body code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.markdown-body p code,
.markdown-body li code {
  padding: 0.1rem 0.35rem;
  border-radius: 6px;
  background: rgba(16, 26, 36, 0.08);
}

.markdown-body a {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.markdown-body img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.markdown-toggle {
  padding: 0.9rem 0 0;
  border-top: 1px solid var(--line);
}

.markdown-toggle + .markdown-toggle,
.markdown-callout + .markdown-toggle,
.markdown-toggle + .markdown-callout {
  margin-top: 0.2rem;
}

.markdown-toggle > summary {
  position: relative;
  padding-left: 1.2rem;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
}

.markdown-toggle > summary::-webkit-details-marker {
  display: none;
}

.markdown-toggle > summary::before {
  content: "+";
  position: absolute;
  left: 0;
  top: 0.02rem;
  color: var(--muted);
}

.markdown-toggle[open] > summary::before {
  content: "-";
}

.markdown-toggle-body {
  display: grid;
  gap: 1rem;
  padding-top: 0.8rem;
}

.markdown-callout {
  padding: 1rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
}

.markdown-callout-body {
  display: grid;
  gap: 0.8rem;
}

@media (max-width: 900px) {
  .page-hero,
  .page-columns,
  .page-entry-row,
  .article-browser {
    grid-template-columns: 1fr;
  }

  .page-metric-grid {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
  }

  .page-gallery-item[data-size="wide"],
  .page-gallery-item[data-size="tall"] {
    grid-column: span 12;
  }

  .page-gallery-item[data-size="square"] {
    grid-column: span 6;
  }
}

@media (max-width: 680px) {
  .subpage-header,
  .subpage-main {
    width: min(calc(100vw - 2rem), 86rem);
  }

  .single-reader-main {
    width: min(calc(100vw - 2rem), 64rem);
  }

  .introduction-portrait {
    float: none;
    width: 100%;
    max-width: 22rem;
    margin: 0 0 1.1rem;
  }

  .subpage-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-gallery-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-gallery-item[data-size="wide"],
  .page-gallery-item[data-size="tall"],
  .page-gallery-item[data-size="square"] {
    grid-column: span 6;
  }
}