:root {
  --bg: #f7f6f2;
  --surface: #ffffff;
  --surface-soft: #eeebe3;
  --ink: #1f2933;
  --muted: #65727f;
  --accent: #22577a;
  --accent-dark: #12394f;
  --line: #dedbd2;
  --shadow: 0 24px 70px rgba(24, 39, 54, 0.13);
  --radius: 26px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
}

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

a:hover {
  color: var(--accent-dark);
  text-decoration: underline;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  padding: 10px 14px;
  background: var(--ink);
  color: white;
  border-radius: 10px;
  z-index: 999;
}

.skip-link:focus {
  left: 10px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 246, 242, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(222, 219, 210, 0.8);
}

.nav {
  max-width: 1160px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}

.brand {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  color: white;
  background: var(--ink);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.brand:hover {
  color: white;
  text-decoration: none;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 0.95rem;
  font-weight: 650;
}

.nav-toggle {
  display: none;
  appearance: none;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 999px;
  padding: 9px 14px;
  color: var(--ink);
  font-weight: 700;
}

.section {
  max-width: 1160px;
  margin: 0 auto;
  padding: 92px 24px;
}

.hero {
  min-height: calc(100vh - 82px);
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
  align-items: center;
  gap: 54px;
}

.eyebrow {
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
}

h1, h2, h3 {
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-top: 0;
}

h1 {
  max-width: 880px;
  margin-bottom: 22px;
  font-size: clamp(3.1rem, 7vw, 6.8rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.35rem);
  margin-bottom: 18px;
}

h3 {
  font-size: 1.24rem;
  margin-bottom: 10px;
}

.lead {
  font-size: clamp(1.18rem, 2vw, 1.4rem);
  color: var(--accent-dark);
  font-weight: 700;
}

.hero-text p:not(.eyebrow) {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-actions,
.contact-links,
.pub-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 28px;
}

.button,
.filter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  padding: 12px 17px;
  font-weight: 750;
  font-size: 0.95rem;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(31, 41, 51, 0.06);
}

.button:hover,
.filter:hover,
.filter.active {
  text-decoration: none;
  border-color: var(--accent);
  color: var(--accent-dark);
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.button.primary:hover {
  background: var(--accent-dark);
  color: white;
}

.button.small {
  padding: 9px 14px;
  font-size: 0.88rem;
}

.hero-card {
  padding: 16px;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transform: rotate(1.2deg);
}

.hero-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: calc(var(--radius) - 8px);
  object-position: center 35%;
}

.card-body {
  padding: 18px 8px 4px;
  display: grid;
  gap: 4px;
}

.card-body strong {
  font-size: 1.22rem;
}

.card-body span {
  color: var(--muted);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(260px, 0.75fr) minmax(0, 1.25fr);
  gap: 68px;
}

.prose p {
  margin-top: 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.tags span {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--accent-dark);
  font-weight: 700;
  font-size: 0.9rem;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 34px;
}

.section-heading.compact {
  margin-bottom: 20px;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: 1.05rem;
}

.cards {
  display: grid;
  gap: 18px;
}

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

.card,
.publication,
.contact-card,
.contact-note {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 18px 44px rgba(31, 41, 51, 0.07);
}

.card p,
.publication p,
.contact-note p,
.contact-card p {
  color: var(--muted);
  margin-bottom: 0;
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.highlight {
  min-height: 150px;
  border-radius: var(--radius);
  background: var(--surface-soft);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.number {
  color: var(--accent-dark);
  font-weight: 850;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.1;
}

.pub-tools {
  margin-top: 0;
  margin-bottom: 18px;
}

.publication-list {
  display: grid;
  gap: 14px;
}

.publication {
  padding: 22px 24px;
}

.publication.is-hidden {
  display: none;
}

.pub-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.pub-meta span {
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--accent-dark);
  padding: 5px 9px;
  font-size: 0.78rem;
  font-weight: 850;
}

.publication h3 {
  margin-bottom: 8px;
  font-size: 1.12rem;
  letter-spacing: -0.02em;
}

.publication .authors {
  color: var(--ink);
  font-weight: 650;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.course-grid > div {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 20px;
  padding: 20px;
}

.course-grid h3 {
  font-size: 1rem;
  margin-bottom: 12px;
}

.course-grid ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.65fr);
  gap: 18px;
}

.contact-card {
  background: var(--ink);
  color: white;
}

.contact-card .eyebrow,
.contact-card p {
  color: rgba(255,255,255,0.74);
}

.contact-card h2 {
  color: white;
}

.contact-links a {
  color: white;
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 999px;
  padding: 10px 13px;
  font-weight: 750;
}

.contact-links a:hover {
  background: white;
  color: var(--ink);
  text-decoration: none;
}

.contact-note {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.footer {
  max-width: 1160px;
  margin: 0 auto;
  padding: 36px 24px 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 900px) {
  .hero,
  .two-column,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .cards.three,
  .highlight-grid,
  .course-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 62px;
  }

  .hero-card {
    max-width: 420px;
    transform: none;
  }

  .section {
    padding: 72px 22px;
  }
}

@media (max-width: 720px) {
  .nav {
    align-items: flex-start;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-menu {
    position: absolute;
    top: 76px;
    left: 18px;
    right: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: var(--surface);
    box-shadow: var(--shadow);
    overflow: hidden;
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-menu a {
    padding: 14px 18px;
    border-bottom: 1px solid var(--line);
  }

  .nav-menu a:last-child {
    border-bottom: 0;
  }

  h1 {
    font-size: clamp(2.55rem, 12vw, 4.3rem);
  }

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

@media print {
  .site-header,
  .hero-actions,
  .pub-tools,
  .footer,
  .skip-link {
    display: none;
  }

  body {
    background: white;
  }

  .section {
    padding: 24px 0;
  }

  .card,
  .publication,
  .contact-card,
  .contact-note {
    box-shadow: none;
  }
}

.vision-section {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 20px;
  align-items: stretch;
}

.vision-card {
  background: var(--ink);
  color: white;
  border-radius: var(--radius);
  padding: 34px;
  box-shadow: var(--shadow);
}

.vision-card .eyebrow,
.vision-card p {
  color: rgba(255,255,255,0.76);
}

.vision-card h2 {
  color: white;
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.metrics-grid {
  display: grid;
  gap: 14px;
}

.metric-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  display: grid;
  align-content: center;
  box-shadow: 0 18px 44px rgba(31, 41, 51, 0.07);
}

.metric-number {
  color: var(--accent-dark);
  font-weight: 900;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
}

.metric-label {
  color: var(--muted);
  font-weight: 700;
  margin-top: 8px;
}

.selected-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.selected-publication {
  border-left: 5px solid var(--accent);
}

@media (max-width: 900px) {
  .vision-section,
  .selected-list {
    grid-template-columns: 1fr;
  }
}