:root {
  --bg: #fcfbf8;
  --paper: #ffffff;
  --ink: #171717;
  --muted: #575757;
  --line: #d9d5ce;
  --line-strong: #bdb7ae;
  --accent: #6b5847;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", sans-serif;
  line-height: 1.7;
}

a {
  color: #1f3f67;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

img {
  max-width: 100%;
}

.site {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 42px;
}

.site-header {
  padding: 8px 0 20px;
  border-bottom: 1px solid var(--line);
}

.site-kicker,
.site-nav,
.publication-meta,
.writing-meta,
.log-subtitle,
.details-subtitle {
  color: var(--muted);
}

.section-heading h2,
.about-header h3,
.academic-section-header h3,
.publication-header h3,
.writing-main h3,
.narrative-header h4,
details summary,
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  font-family: "Source Serif 4", serif;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.95rem;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
}

.site-nav a.is-active {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  text-decoration: underline;
}

.document {
  padding-top: 10px;
}

.writing-page {
  padding-top: 28px;
}

.document-section {
  padding: 28px 0 32px;
  border-bottom: 1px solid var(--line);
}

.section-heading {
  margin-bottom: 18px;
}

.section-heading h2 {
  margin: 0;
  font-size: 2rem;
  line-height: 1.15;
  font-weight: 600;
}

.loading-block,
.error-block {
  color: var(--muted);
}

.error-block {
  color: #842d2d;
}

.about-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.profile-image {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
}

.about-header h3 {
  margin: 0;
  font-size: 1.8rem;
  font-weight: 600;
}

.about-subtitle {
  margin: 6px 0 0;
  color: var(--muted);
}

.about-links {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.about-links h4 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.link-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.link-list li {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 12px;
}

.publication-list,
.writing-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.publication-item,
.writing-item {
  border-top: 1px solid var(--line);
}

.publication-item {
  padding: 18px 0;
}

.writing-item {
  padding: 14px 0 12px;
}

.publication-item:first-child,
.writing-item:first-child {
  padding-top: 0;
  border-top: 0;
}

.writing-item:last-child {
  padding-bottom: 0;
}

.publication-header h3,
.writing-main h3 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 600;
}

.publication-meta,
.writing-meta {
  margin: 4px 0 0;
  font-size: 0.95rem;
}

.writing-main p {
  margin-top: 12px;
  margin-bottom: 0;
}

.publication-abstract {
  margin: 12px 0;
}

.publication-links,
.artifact-line {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 10px;
  font-size: 0.95rem;
}

.research-intro {
  margin-bottom: 18px;
  max-width: 62rem;
}

.reading-log-list {
  display: grid;
  gap: 18px;
}

.details-block {
  border: 1px solid var(--line);
  background: var(--paper);
}

.details-block summary {
  padding: 14px 16px;
  cursor: pointer;
  font-size: 1.35rem;
  font-weight: 600;
  list-style: none;
}

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

.details-block summary::before {
  content: "+";
  display: inline-block;
  width: 1.1rem;
  margin-right: 10px;
  color: var(--accent);
}

.details-block[open] summary {
  border-bottom: 1px solid var(--line);
}

.details-block[open] summary::before {
  content: "−";
}

.details-body {
  padding: 18px 20px 20px;
}

.reading-log-sections,
.topic-list {
  display: grid;
  gap: 12px;
}

.reading-log-sections {
  margin-top: 16px;
}

.narrative-article {
  padding-top: 4px;
}

.narrative-header h4 {
  margin: 0 0 6px;
  font-size: 1.3rem;
  font-weight: 600;
}

.narrative-header p {
  margin: 0 0 12px;
  color: var(--muted);
}

.topic-section {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.topic-section h4 {
  margin: 0 0 12px;
  font-size: 1.08rem;
}

.diagram-block {
  margin: 0 0 16px;
  padding: 10px 0 4px;
}

.diagram-block img,
.markdown-body img {
  display: block;
  border: 1px solid var(--line);
  background: #fff;
}

.markdown-body {
  color: var(--ink);
}

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

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

.paper-title {
  min-width: 0;
}

.paper-status {
  display: inline-block;
  margin-left: 10px;
  vertical-align: middle;
  padding: 2px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.78rem;
  font-weight: 500;
  line-height: 1.4;
  white-space: nowrap;
}

.markdown-body p,
.markdown-body li,
.markdown-body td,
.markdown-body th,
.markdown-body blockquote {
  color: var(--muted);
}

.markdown-body h1 {
  font-size: 1.8rem;
}

.markdown-body h2 {
  margin-top: 26px;
  margin-bottom: 10px;
  font-size: 1.45rem;
  font-weight: 600;
}

.markdown-body h3 {
  margin-top: 22px;
  margin-bottom: 8px;
  font-size: 1.12rem;
  font-weight: 600;
}

.markdown-body h4 {
  margin-top: 18px;
  margin-bottom: 8px;
  font-size: 1rem;
  font-weight: 600;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 22px;
}

.markdown-body code {
  padding: 0.08rem 0.28rem;
  border: 1px solid var(--line);
  background: #f7f4ef;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.92em;
}

.markdown-body pre {
  overflow-x: auto;
  padding: 12px;
  border: 1px solid var(--line);
  background: #faf8f3;
}

.markdown-body blockquote {
  margin: 14px 0;
  padding-left: 14px;
  border-left: 2px solid var(--line-strong);
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.96rem;
}

.markdown-body th,
.markdown-body td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  text-align: left;
}

.writing-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  column-gap: 24px;
  row-gap: 8px;
  align-items: start;
}

.writing-main p:last-child {
  margin-bottom: 0;
}

.writing-link {
  padding-top: 2px;
  white-space: nowrap;
}

@media (max-width: 780px) {
  .site {
    width: min(100% - 20px, 1040px);
  }

  .about-layout,
  .writing-item {
    grid-template-columns: 1fr;
  }

  .link-list li {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}