:root {
  --bg: #f4efe7;
  --bg-strong: #efe4d4;
  --surface: rgba(255, 252, 247, 0.72);
  --surface-strong: rgba(255, 248, 239, 0.88);
  --text: #1d2433;
  --muted: #5f6778;
  --line: rgba(29, 36, 51, 0.12);
  --accent: #91593d;
  --accent-strong: #6d3f29;
  --accent-soft: rgba(145, 89, 61, 0.12);
  --shadow: 0 24px 80px rgba(29, 36, 51, 0.12);
  --radius-lg: 30px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Manrope", sans-serif;
  background:
    radial-gradient(circle at 0% 0%, rgba(143, 174, 219, 0.24), transparent 34%),
    radial-gradient(circle at 100% 10%, rgba(208, 158, 123, 0.26), transparent 30%),
    linear-gradient(180deg, #faf5ee 0%, var(--bg) 44%, #f8f1e8 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  width: 42vw;
  height: 42vw;
  border-radius: 999px;
  filter: blur(70px);
  pointer-events: none;
  z-index: -1;
  animation: drift 16s ease-in-out infinite alternate;
}

body::before {
  top: -12vw;
  right: -10vw;
  background: rgba(102, 125, 173, 0.16);
}

body::after {
  bottom: -16vw;
  left: -10vw;
  background: rgba(183, 124, 90, 0.14);
  animation-duration: 20s;
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    transform: translate3d(2vw, -2vw, 0) scale(1.08);
  }
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--text);
}

img {
  display: block;
  max-width: 100%;
}

.container {
  width: min(calc(100% - 2.5rem), var(--container));
  margin: 0 auto;
}

.section {
  padding: 2rem 0 4.75rem;
}

.section-contrast {
  position: relative;
}

.section-contrast::before {
  content: "";
  position: absolute;
  inset: 1rem 0;
  background: linear-gradient(180deg, rgba(255, 248, 240, 0.2), rgba(255, 252, 248, 0.72));
  border-top: 1px solid rgba(29, 36, 51, 0.06);
  border-bottom: 1px solid rgba(29, 36, 51, 0.06);
  z-index: -1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(250, 245, 238, 0.72);
  border-bottom: 1px solid rgba(29, 36, 51, 0.08);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #1d2433, #4f607f);
  color: #fff;
  font-family: "Source Serif 4", serif;
  font-size: 1.15rem;
}

.brand-text {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.7rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  transition: background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: rgba(29, 36, 51, 0.06);
  color: var(--text);
}

.nav-toggle {
  display: none;
  border: 1px solid rgba(29, 36, 51, 0.1);
  background: rgba(255, 252, 247, 0.72);
  border-radius: 999px;
  padding: 0.8rem 1rem;
  color: var(--text);
  font: inherit;
}

.hero {
  padding-top: 3rem;
}

.hero-grid,
.intro-grid,
.split-panel,
.feature-grid,
.card-grid {
  display: grid;
  gap: 1.5rem;
}

.hero-grid,
.intro-grid {
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.9fr);
  align-items: start;
}

.hero-copy,
.hero-panel,
.surface-panel,
.card,
.feature-card,
.callout,
.publication,
.timeline-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 2rem;
  background: linear-gradient(180deg, rgba(255, 253, 250, 0.88), rgba(255, 248, 240, 0.68));
}

.hero-panel {
  padding: 1.25rem;
}

.portrait-shell {
  position: relative;
  padding: 1rem;
  border-radius: calc(var(--radius-lg) - 4px);
  background: linear-gradient(135deg, rgba(145, 89, 61, 0.15), rgba(79, 96, 127, 0.14));
}

.portrait {
  width: 100%;
  aspect-ratio: 1 / 1.08;
  object-fit: cover;
  border-radius: 24px;
}

.surface-panel {
  padding: 1.5rem;
}

.panel-label,
.card-kicker,
.publication-year,
.timeline-meta,
.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--accent-strong);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.display-title,
.page-title,
.section-heading h2,
.card h3,
.feature-card h3,
.publication h3,
.timeline-item h3,
.callout h2 {
  margin: 0;
  font-family: "Source Serif 4", serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.12;
}

.display-title {
  max-width: 14ch;
  font-size: clamp(2.1rem, 3.3vw, 3.2rem);
}

.page-title {
  max-width: 16ch;
  font-size: clamp(1.85rem, 2.7vw, 2.55rem);
}

.lede {
  margin: 1.25rem 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.8;
}

.button-row,
.link-cluster,
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.button-row {
  margin-top: 1.75rem;
}

.button,
.button-secondary,
.pill-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  min-height: 3rem;
  padding: 0.85rem 1.2rem;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease, color 180ms ease;
}

.button {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  box-shadow: 0 14px 28px rgba(109, 63, 41, 0.2);
}

.button:hover,
.pill-link:hover,
.site-nav a:hover,
.feature-card:hover,
.card:hover,
.publication:hover,
.timeline-item:hover {
  transform: translateY(-2px);
}

.button-secondary,
.pill-link {
  background: rgba(255, 255, 255, 0.48);
  border: 1px solid rgba(29, 36, 51, 0.1);
  color: var(--text);
}

.inline-facts,
.stat-list {
  margin: 1.5rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
  line-height: 1.8;
}

.section-heading {
  margin-bottom: 1.6rem;
}

.section-heading h2,
.callout h2 {
  font-size: clamp(1.75rem, 2.3vw, 2.35rem);
}

.card-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid-2,
.feature-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.feature-card {
  padding: 1.6rem;
}

.card p,
.feature-card p,
.surface-panel p,
.publication p,
.timeline-item p,
.callout p {
  color: var(--muted);
  line-height: 1.78;
}

.inline-note,
.discussion-note {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.97rem;
}

.text-link {
  display: inline-flex;
  align-items: center;
  margin-top: 0.4rem;
  font-weight: 700;
  text-decoration: none;
}

.callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.75rem 2rem;
}

.publication-list,
.timeline {
  display: grid;
  gap: 1.25rem;
}

.publication {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 1rem;
  padding: 1.5rem 1.6rem;
}

.publication h3,
.timeline-item h3,
.card h3,
.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.65rem;
}

.timeline-item {
  position: relative;
  padding: 1.5rem 1.6rem;
}

.split-panel {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.discussion-shell {
  padding-bottom: 1.1rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 2.3rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.92rem;
  font-weight: 700;
}

.site-footer {
  padding: 1rem 0 2.4rem;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 {
  transition-delay: 120ms;
}

.reveal-delay-2 {
  transition-delay: 220ms;
}

@media (max-width: 980px) {
  .hero-grid,
  .intro-grid,
  .split-panel,
  .feature-grid,
  .card-grid-3,
  .card-grid-2 {
    grid-template-columns: 1fr;
  }

  .publication {
    grid-template-columns: 1fr;
  }

  .display-title,
  .page-title {
    max-width: none;
  }

  .callout,
  .footer-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 0.75rem);
    left: 1.25rem;
    right: 1.25rem;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-12px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  }

  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0.35rem;
    padding: 0.7rem;
    border: 1px solid rgba(29, 36, 51, 0.08);
    border-radius: 24px;
    background: rgba(255, 250, 243, 0.96);
    box-shadow: var(--shadow);
  }

  .nav-open .site-nav {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

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

  .brand-text {
    max-width: 15ch;
    line-height: 1.25;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 1.4rem), var(--container));
  }

  .section {
    padding: 1.4rem 0 3.4rem;
  }

  .hero-copy,
  .hero-panel,
  .card,
  .feature-card,
  .publication,
  .timeline-item,
  .surface-panel,
  .callout {
    padding: 1.3rem;
    border-radius: 24px;
  }

  .button,
  .button-secondary,
  .pill-link {
    width: 100%;
  }

  .button-row {
    flex-direction: column;
  }

  .display-title {
    font-size: clamp(1.95rem, 9vw, 2.55rem);
  }

  .page-title {
    font-size: clamp(1.7rem, 8vw, 2.2rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  body::before,
  body::after,
  .reveal,
  .reveal.is-visible,
  .button,
  .pill-link,
  .card,
  .feature-card,
  .publication,
  .timeline-item,
  .site-nav a {
    animation: none;
    transition: none;
    transform: none;
  }

  .reveal {
    opacity: 1;
  }
}