:root {
  --bg: #ffffff;
  --bg-soft: #fafafa;
  --border: #e8e8e8;
  --text: #111111;
  --muted: #666666;
  --accent: #3f51b5;
  --max-width: 980px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Source Sans 3", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
}

.page-backdrop {
  display: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--border);
}

.site-header__inner,
.page-shell,
.site-footer__inner {
  width: min(var(--max-width), calc(100vw - 32px));
  margin: 0 auto;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
}

.site-brand {
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 400;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 16px;
}

.site-nav__link {
  color: var(--muted);
  font-size: 0.98rem;
  font-weight: 400;
}

.site-nav__link.is-active,
.site-nav__link:hover {
  color: var(--text);
  text-decoration: none;
}

.page-shell {
  padding: 42px 0 72px;
}

.page {
  display: block;
}

.page-header {
  margin-bottom: 2rem;
}

.page-kicker {
  display: none;
}

.page-title,
.hero-copy h1,
.section-title,
.timeline-item h3,
.pub-title,
.analytics-hero h2,
.content-card h3 {
  margin: 0;
  color: var(--text);
  font-family: "Crimson Text", Georgia, serif;
  font-weight: 600;
}

.page-title {
  font-size: clamp(2.35rem, 5vw, 3.5rem);
  line-height: 1.05;
}

.page-description {
  margin-top: 0.4rem;
  max-width: 42rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-card,
.content-card,
.analytics-grid,
.results-gallery,
.contact-card,
.cv-card {
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.hero-card {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(260px, 330px);
  align-items: start;
  gap: clamp(1.8rem, 4vw, 4rem);
  padding: 0.25rem 0 0;
}

.hero-photo {
  order: 2;
  width: min(300px, 100%);
  margin: 0;
  justify-self: end;
}

.hero-photo img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 50%;
  object-fit: contain;
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.05);
  background: transparent;
}

.hero-copy {
  display: block;
  min-width: 0;
}

.hero-copy h1 {
  font-size: clamp(2rem, 4vw, 2.9rem);
  line-height: 1.05;
  margin-bottom: 1rem;
}

.hero-headline {
  max-width: 24ch;
  font-size: clamp(1.85rem, 3.15vw, 2.75rem) !important;
  line-height: 1.08 !important;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.hero-lead,
.section-copy,
.timeline-copy p,
.pub-venue,
.pub-note,
.analytics-copy,
.plain-list li {
  margin: 0 0 1rem;
  font-size: 1.08rem;
  color: var(--muted);
}

.hero-lead {
  max-width: 46rem;
}

.tag-row,
.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  margin: 1rem 0;
}

.tag-row span {
  color: var(--text);
  font-size: 1rem;
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem 1.5rem;
  margin-top: 1.4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.fact-item dt {
  margin: 0 0 0.15rem;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
}

.fact-item dd {
  margin: 0;
  color: var(--text);
  font-size: 1rem;
}

.section-stack {
  margin-top: 3rem;
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  line-height: 1.08;
  margin-bottom: 0.75rem;
}

.research-grid,
.timeline,
.pub-list,
.analytics-grid,
.contact-grid {
  display: grid;
  gap: 0;
}

.research-grid {
  grid-template-columns: 1fr;
  margin-top: 1rem;
}

.content-card {
  padding: 1.25rem 0;
  border-top: 1px solid var(--border);
}

.content-card:first-child {
  border-top: 0;
}

.content-card h3 {
  font-size: 1.5rem;
  line-height: 1.15;
  margin-bottom: 0.45rem;
}

.timeline {
  border-top: 1px solid var(--border);
}

.timeline-item {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 24px;
  padding: 1.35rem 0;
  border-top: 1px solid var(--border);
}

.timeline-item:first-child {
  border-top: 0;
}

.timeline-item h3 {
  font-size: 1.65rem;
  line-height: 1.08;
  margin-bottom: 0.25rem;
}

.item-meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.timeline-copy,
.pub-copy {
  display: block;
}

.timeline-degree {
  color: var(--text);
  font-weight: 600;
}

.thesis-line {
  margin-top: 0.75rem;
}

.list-label {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.pub-list {
  border-top: 1px solid var(--border);
}

.pub-item {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 1.7rem 0;
  border-top: 1px solid var(--border);
}

.pub-item:first-child {
  border-top: 0;
}

.pub-main {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 1rem 1.2rem;
  align-items: start;
}

.pub-preview {
  margin: 0;
  overflow: hidden;
  border-radius: 6px;
  border: 1px solid #e7e7e2;
  background: #fff;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.035);
}

.pub-preview img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9.4;
  object-fit: cover;
  object-position: top center;
  background: #fff;
}

.pub-title {
  font-size: clamp(1.22rem, 1.8vw, 1.5rem);
  line-height: 1.15;
  margin-bottom: 0.4rem;
}

.pub-authors,
.pub-venue {
  margin: 0 0 0.45rem;
  color: var(--text);
  font-size: 0.98rem;
}

.author-highlight {
  font-weight: 700;
}

.author-star {
  margin-left: 0.15rem;
  font-size: 0.9em;
  font-weight: 700;
  color: var(--text);
}

.inline-note {
  margin-left: 0.45rem;
  color: var(--muted);
  font-size: 0.92rem;
  text-transform: none;
  letter-spacing: 0;
}

.pub-note {
  font-size: 0.94rem;
  margin-bottom: 0.45rem;
}

.results-gallery {
  margin-top: 1.75rem;
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(0, 1fr);
  gap: 16px;
}

.results-column {
  display: grid;
  gap: 16px;
}

.results-card {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  background: #fff;
  cursor: zoom-in;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.results-card img {
  display: block;
  width: 100%;
  background: #fff;
  object-fit: contain;
}

.results-card--left img {
  aspect-ratio: 1302 / 590;
}

.results-card--top img {
  aspect-ratio: 2258 / 688;
}

.results-card--bottom img {
  aspect-ratio: 10629 / 2996;
}

.results-card--wide {
  grid-column: 1 / -1;
}

.results-card--wide img {
  aspect-ratio: 1672 / 941;
}

@media (hover: hover) and (pointer: fine) {
  .results-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
  }
}

.analytics-hero {
  margin-bottom: 1.5rem;
}

.analytics-hero h2 {
  font-size: clamp(2rem, 4vw, 2.9rem);
  line-height: 1.05;
}

.analytics-grid {
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 2rem;
}

.analytics-summary {
  display: grid;
  gap: 1rem;
}

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

.analytics-card:first-child {
  border-top: 0;
}

.analytics-label {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.analytics-value {
  margin: 0.2rem 0 0.35rem;
  color: var(--text);
  font-family: "Crimson Text", Georgia, serif;
  font-size: 2.4rem;
  line-height: 1;
}

.analytics-value--small {
  font-size: 1.35rem;
  line-height: 1.2;
}

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

.analytics-country-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 0.85rem 0;
  border-top: 1px solid var(--border);
}

.analytics-country-item:first-child {
  border-top: 0;
}

.analytics-country-icon {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: #f3f3f3;
  font-size: 0.95rem;
}

.analytics-country-name,
.analytics-country-count {
  font-size: 1rem;
}

.plain-list {
  margin: 0;
  padding-left: 1.15rem;
}

.contact-grid {
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.contact-card,
.cv-card {
  padding: 0;
}

.cta-button {
  display: inline-block;
  padding: 0.7rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  font-size: 0.94rem;
  font-weight: 600;
}

.cta-button:hover {
  text-decoration: none;
  border-color: #d9d9d9;
}

.cv-frame {
  width: 100%;
  height: 78vh;
  margin-top: 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
}

.site-footer {
  display: none;
}

.site-footer__inner {
  padding: 1.2rem 0 2rem;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.results-lightbox[hidden] {
  display: none;
}

.results-lightbox {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  padding: 24px;
}

.results-lightbox__backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(0, 0, 0, 0.7);
}

.results-lightbox__panel {
  position: relative;
  z-index: 1;
  width: min(1100px, calc(100vw - 48px));
  max-height: calc(100vh - 48px);
  display: grid;
  gap: 14px;
  padding: 16px;
  border-radius: 8px;
  background: #fff;
}

.results-lightbox__close {
  justify-self: end;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  font-size: 0.9rem;
}

.results-lightbox__image {
  display: block;
  width: 100%;
  max-height: calc(100vh - 160px);
  object-fit: contain;
}

@media (max-width: 900px) {
  .hero-card,
  .results-gallery,
  .analytics-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-card {
    gap: 1.5rem;
  }

  .hero-photo {
    order: 0;
    justify-self: start;
    width: min(280px, 100%);
  }

  .pub-item {
    grid-template-columns: 80px minmax(0, 1fr);
  }

  .pub-main {
    grid-template-columns: 200px minmax(0, 1fr);
  }

  .pub-preview img {
    aspect-ratio: 16 / 9.8;
  }
}

@media (max-width: 760px) {
  .site-header__inner {
    min-height: auto;
    padding: 14px 0;
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .hero-photo {
    width: min(240px, 100%);
    margin: 0 0 1.25rem;
  }

  .hero-headline {
    max-width: none;
    font-size: clamp(1.8rem, 7.4vw, 2.55rem) !important;
  }

  .fact-grid,
  .timeline-item,
  .pub-item {
    grid-template-columns: 1fr;
  }

  .pub-item {
    gap: 14px;
  }

  .pub-main {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .pub-preview img {
    aspect-ratio: 16 / 8.2;
  }

  .page-shell {
    padding: 28px 0 56px;
  }

  .cv-frame {
    height: 62vh;
  }
}