:root {
  --bg: #fefdf9;
  --ink: #253342;
  --accent: #1a3a5c;
  --text: #5c6a79;
  --muted: #87919c;
  --line: rgba(39, 55, 70, 0.105);
  --link: #244e76;
  --link-light: #6a9fdf;
  --award: #9e3a26;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--sans);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 0.16em; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(254, 253, 249, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner, .hero-inner, .section, .footer, .cv-shell, .article-shell, .blog-shell {
  width: min(1240px, calc(100% - 56px));
  margin: 0 auto;
}

.header-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.82rem;
  letter-spacing: -0.035em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 11px;
  font-size: 0.98rem;
}

.nav a { color: #4f5d6b; }
.nav-sep { color: #b8bec5; }

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  position: relative;
  min-height: 760px;
  display: grid;
  grid-template-columns: 450px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding-top: 78px;
  padding-bottom: 62px;
}

.hero-copy {
  position: relative;
  z-index: 3;
  padding-top: 2px;
}

.identity-row {
  display: grid;
  grid-template-columns: 204px 1fr;
  gap: 24px;
  align-items: start;
  margin-bottom: 22px;
}

.portrait {
  width: 204px;
  height: 204px;
  display: block;
  object-fit: cover;
  object-position: 50% 43%;
  border-radius: 50%;
  border: 5px solid rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 42px rgba(41, 58, 72, 0.14);
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease;
}
.portrait:hover {
  transform: translateY(-1px);
  box-shadow: 0 22px 50px rgba(41, 58, 72, 0.18);
}
.portrait.is-hidden {
  visibility: hidden;
}

.photo-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(20, 28, 36, 0);
  z-index: 1000;
  opacity: 0;
  transition: background 240ms ease, opacity 240ms ease;
  cursor: pointer;
}
.photo-backdrop.is-open {
  background: rgba(20, 28, 36, 0.78);
  opacity: 1;
}

.photo-expanded {
  position: fixed;
  background-repeat: no-repeat;
  border: 5px solid rgba(255, 255, 255, 0.92);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  will-change: left, top, width, height, background-size, background-position, border-radius;
  transition:
    left 460ms cubic-bezier(0.22, 1, 0.36, 1),
    top 460ms cubic-bezier(0.22, 1, 0.36, 1),
    width 460ms cubic-bezier(0.22, 1, 0.36, 1),
    height 460ms cubic-bezier(0.22, 1, 0.36, 1),
    background-size 460ms cubic-bezier(0.22, 1, 0.36, 1),
    background-position 460ms cubic-bezier(0.22, 1, 0.36, 1),
    border-radius 460ms cubic-bezier(0.22, 1, 0.36, 1);
  cursor: pointer;
}

.identity-text {
  padding-top: 6px;
}

.hero-copy h1,
.section-head h2,
.section-label,
.cv-title h1,
.cv-section h2 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.045em;
  color: #2a3545;
}

.hero-copy h1 {
  margin: 0 0 16px;
  font-size: clamp(3rem, 4.05vw, 4.34rem);
  line-height: 0.96;
}

.email-line {
  display: inline-block;
  color: var(--link);
  font-size: 1.03rem;
  margin-bottom: 5px;
}

.identity-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.35;
}

.identity-links-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.identity-links a {
  color: #536b82;
}

.hero-lead {
  max-width: 398px;
  margin: 0 0 17px;
  color: #354657;
  font-size: 1.19rem;
  line-height: 1.54;
}

.hero-note {
  max-width: 386px;
  margin: 0;
  color: var(--text);
  font-size: 1.04rem;
}


.hero-art-wrap {
  position: relative;
  min-height: 610px;
}

.hero-art-img {
  width: 100%;
  height: auto;
  display: block;
  user-select: none;
  -webkit-user-drag: none;
}

.hero-art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
  pointer-events: none;
}

#moving-dot-shadow {
  fill: rgba(60, 72, 84, 0.18);
  transition: opacity 200ms ease;
}
#moving-dot {
  fill: #3d4855;
  transition: opacity 200ms ease;
}

.section {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 60px;
  padding: 84px 0;
  border-bottom: 1px solid var(--line);
}

.section-label {
  font-size: 3.05rem;
  line-height: 1;
}

.section-body {
  max-width: 700px;
  padding-left: 44px;
  border-left: 1px solid var(--line);
  color: var(--text);
  font-size: 1.18rem;
}

.section-body p { margin: 0 0 1.35rem; }

.publications { display: block; }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 26px;
}

.section-head h2 {
  margin: 0;
  font-size: 3.05rem;
  line-height: 1;
}

.view-all {
  color: var(--link);
  font-size: 1rem;
  white-space: nowrap;
}

.pub-list { margin-top: 10px; }

.pub-item {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  gap: 26px;
  align-items: center;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.pub-icon {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(229, 239, 248, 0.62);
}

.pub-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: #86abdd;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.pub-main h3 {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-size: 1.92rem;
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: #2c3848;
}

.pub-main p {
  margin: 0 0 4px;
  color: var(--text);
  font-size: 1rem;
}

.pub-main span {
  color: var(--muted);
  font-size: 0.98rem;
  font-style: italic;
}

.pub-links {
  font-size: 1rem;
  white-space: nowrap;
}

/* CV page */
.cv-page {
  background: var(--bg);
}

.cv-shell {
  max-width: 980px;
  padding: 56px 0 72px;
}

.cv-title {
  position: relative;
  text-align: center;
  margin-bottom: 32px;
  padding-bottom: 16px;
}

.cv-title h1 {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: clamp(2.15rem, 5vw, 3.1rem);
  font-variant: small-caps;
  letter-spacing: -0.02em;
}

.cv-title p {
  margin: 0 auto 18px;
  color: var(--text);
  font-size: 0.98rem;
}

.cv-title p span {
  color: #a7adb4;
  padding: 0 0.4em;
}

.pdf-button {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(26, 58, 92, 0.16);
  border-radius: 999px;
  padding: 0.48rem 0.8rem;
  color: var(--accent);
  background: rgba(255,255,255,0.54);
}

.cv-section {
  margin-top: 26px;
}

.cv-section h2 {
  margin: 0 0 14px;
  padding-bottom: 6px;
  color: var(--accent);
  font-size: 1.7rem;
  font-variant: small-caps;
  border-bottom: 1px solid #999;
}

.cv-entry {
  margin: 0 0 14px;
  color: #2f3741;
}

.cv-entry p {
  margin: 3px 0 0;
  color: var(--text);
  font-size: 0.96rem;
}

.cv-entry-top {
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

.cv-entry-top span {
  color: #555;
  font-size: 0.92rem;
  white-space: nowrap;
}

.cv-note {
  margin: 0 0 10px;
  color: #555;
  font-size: 0.92rem;
}

.cv-pubs,
.cv-list {
  margin: 0;
  padding-left: 1.55rem;
}

.cv-pubs li,
.cv-list li {
  margin-bottom: 0.58rem;
  color: #2f3741;
}

.cv-pubs li::marker {
  color: var(--accent);
}

.cv-pubs em,
.cv-list em {
  color: #23354a;
}

.award {
  color: var(--award);
  font-size: 0.9rem;
  font-weight: 700;
}

.awards-table {
  width: 100%;
  border-collapse: collapse;
  color: #2f3741;
}

.awards-table td {
  padding: 0.24rem 0;
  vertical-align: top;
}

.awards-table td:last-child {
  width: 5rem;
  text-align: right;
  color: #555;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 34px 0 46px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer p { margin: 0; }

/* Without JS (or if the JS errors), elements render normally. The fade-in is
   a progressive enhancement gated on the .js class set by the inline boot
   script and removed if script.js throws. */
.js [data-animate] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.js [data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero-inner {
    grid-template-columns: 1fr;
    min-height: unset;
    gap: 12px;
  }

  .hero-copy { padding-top: 0; }

  .hero-lead,
  .hero-note { max-width: 620px; }

  .hero-art-wrap { min-height: 430px; }

  .section {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .section-body {
    padding-left: 0;
    border-left: 0;
  }
}

@media (max-width: 760px) {
  .header-inner, .hero-inner, .section, .footer, .cv-shell, .article-shell, .blog-shell {
    width: min(100% - 28px, 1240px);
  }

  .header-inner {
    min-height: 66px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 12px 0;
  }

  .brand { font-size: 1.72rem; }

  .nav {
    gap: 7px;
    flex-wrap: wrap;
    font-size: 0.95rem;
  }

  .hero-inner {
    padding-top: 42px;
    padding-bottom: 46px;
  }

  .identity-row {
    grid-template-columns: 118px 1fr;
    gap: 18px;
  }

  .portrait {
    width: 118px;
    height: 118px;
  }

  .hero-copy h1 {
    font-size: clamp(2.45rem, 10vw, 3.5rem);
  }

  .email-line {
    font-size: 0.96rem;
  }

  .hero-art { transform: none; }
  .hero-art-wrap { min-height: 260px; }

  .section-label,
  .section-head h2 { font-size: 2.35rem; }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .pub-item {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .cv-title {
    text-align: left;
  }

  .cv-title p span {
    padding: 0 0.25em;
  }

  .cv-entry-top {
    display: block;
  }

  .cv-entry-top span {
    display: block;
    margin-top: 0.1rem;
  }

  .footer { flex-direction: column; }
}

/* --- Article pages --------------------------------------------------- */
.article-page,
.blog-page {
  background: var(--bg);
}

/* On narrow-column pages, the footer should match the content column width
   instead of stretching to the full ~1240px container. */
.article-page .footer { max-width: 700px; }
.blog-page .footer { max-width: 760px; }

.article-shell {
  max-width: 700px;
  padding: 56px 0 80px;
  font-feature-settings: "kern", "liga", "calt";
  text-rendering: optimizeLegibility;
}

.article-head {
  margin-bottom: 32px;
}

.article-shell h1 {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.85rem, 3.2vw, 2.45rem);
  line-height: 1.14;
  letter-spacing: -0.022em;
  color: #2a3545;
  text-wrap: balance;
}

.article-byline {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  letter-spacing: 0.01em;
}

.article-shell h2 {
  margin: 42px 0 10px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.55rem;
  line-height: 1.22;
  letter-spacing: -0.018em;
  color: #2a3545;
  text-wrap: balance;
}

.article-shell h2 .sec-num {
  display: inline-block;
  min-width: 1.5em;
  margin-right: 0.45em;
  color: #a8b0b9;
  font-style: italic;
  font-variant-numeric: tabular-nums;
}

.article-shell h3 {
  margin: 30px 0 8px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.18rem;
  letter-spacing: -0.01em;
  color: #2a3545;
}

.article-shell p {
  margin: 0 0 1.05rem;
  color: var(--text);
  font-size: 1.04rem;
  line-height: 1.7;
}

.article-shell ol,
.article-shell ul {
  margin: 0 0 1.1rem;
  padding-left: 1.5rem;
  color: var(--text);
  font-size: 1.04rem;
  line-height: 1.7;
}

.article-shell li {
  margin-bottom: 0.55rem;
}

.article-shell li:last-child {
  margin-bottom: 0;
}

.article-shell a {
  color: var(--link);
}

.article-shell figure {
  margin: 36px 0;
}

.article-shell figure img,
.article-shell figure .figure-video {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
}

.article-shell figcaption {
  margin-top: 12px;
  padding: 0 4px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

.article-shell figcaption strong {
  color: var(--text);
  font-weight: 500;
}

.article-shell .references {
  margin-top: 0.6rem;
  list-style: none;
  padding-left: 0;
  font-size: 0.94rem;
  line-height: 1.55;
}

.article-shell .references li {
  margin-bottom: 0.5rem;
  padding-left: 1rem;
  text-indent: -1rem;
}

.article-shell blockquote {
  margin: 24px 0;
  padding: 14px 18px;
  border-left: 3px solid rgba(26, 58, 92, 0.22);
  background: rgba(214, 234, 246, 0.28);
  border-radius: 0 4px 4px 0;
}
.article-shell blockquote p {
  margin: 0;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.6;
}

.article-shell pre {
  margin: 0;
  overflow-x: auto;
  padding: 12px 14px;
  background: #f7f5f0;
  border: 1px solid rgba(39, 55, 70, 0.08);
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.82rem;
  line-height: 1.5;
  color: #1f2933;
  white-space: pre-wrap;
  word-wrap: break-word;
}
.article-shell pre code {
  background: none;
  padding: 0;
  font: inherit;
  color: inherit;
}
.article-shell code {
  background: rgba(39, 55, 70, 0.06);
  border-radius: 3px;
  padding: 0.06em 0.32em;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92em;
}

.article-shell .code-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 22px 0 26px;
}
.article-shell .code-grid section {
  margin: 0;
  min-width: 0;
}
.article-shell .code-grid h3 {
  margin: 0 0 8px;
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--muted);
}
.article-shell .code-grid .prompt {
  background: #fbf8f1;
  border-left: 3px solid rgba(26, 58, 92, 0.55);
}
@media (max-width: 720px) {
  .article-shell .code-grid {
    grid-template-columns: 1fr;
  }
}

.article-head .article-crosspost {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
  font-style: italic;
}
.article-head .article-crosspost a { color: var(--link); }

.article-postscript {
  margin-top: 0.6rem !important;
  color: var(--muted);
}
.article-postscript small {
  font-size: 0.9rem;
  line-height: 1.55;
}

.article-back {
  margin-top: 40px !important;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 0.94rem;
}
.article-back a {
  color: var(--link);
}

/* --- Blog index page ------------------------------------------------- */
.blog-shell {
  max-width: 760px;
  padding: 56px 0 72px;
}
.blog-head {
  margin-bottom: 32px;
}
.blog-head h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2rem, 3.6vw, 2.55rem);
  letter-spacing: -0.022em;
  color: #2a3545;
}
.blog-head p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 1rem;
}

.blog-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.blog-list li {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.blog-list li:last-child {
  border-bottom: 1px solid var(--line);
}
.blog-list h2 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 1.22;
  letter-spacing: -0.018em;
}
.blog-list h2 a {
  color: #2a3545;
}
.blog-list h2 a:hover {
  color: var(--link);
}
.blog-list .blog-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}
.blog-list .blog-meta .blog-authors {
  color: var(--text);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}