:root {
  --bg: #f5f1ea;
  --bg-alt: #efe7da;
  --surface: rgba(255, 255, 255, 0.74);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --ink: #1e2830;
  --muted: #586574;
  --line: rgba(30, 40, 48, 0.12);
  --primary: #1e5bb8;
  --primary-dark: #123f82;
  --accent: #b76842;
  --shadow: 0 18px 45px rgba(35, 44, 58, 0.08);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(13, 106, 107, 0.12), transparent 28%),
    radial-gradient(circle at left 20% bottom 10%, rgba(183, 104, 66, 0.1), transparent 26%),
    linear-gradient(180deg, #faf6ef 0%, var(--bg) 100%);
  line-height: 1.65;
}

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

a:hover {
  color: var(--primary-dark);
}

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

h1,
h2,
h3 {
  margin: 0 0 0.45em;
  font-family: "Newsreader", serif;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.6rem, 5vw, 5rem);
}

h2 {
  font-size: clamp(1.8rem, 3vw, 3rem);
}

h3 {
  font-size: 1.45rem;
}

p,
li {
  color: var(--muted);
  font-size: 1rem;
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(245, 241, 234, 0.8);
  border-bottom: 1px solid rgba(30, 40, 48, 0.06);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 132px;
  padding: 0.5rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  color: var(--ink);
}

.brand-mark {
  width: auto;
  height: 118px;
  object-fit: contain;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.main-nav a {
  padding: 0.62rem 0.9rem;
  border-radius: 999px;
  color: var(--ink);
  font-weight: 600;
}

.main-nav a:hover,
.main-nav a.is-active {
  background: rgba(30, 91, 184, 0.12);
  color: var(--primary-dark);
}

.hero,
.page-hero {
  position: relative;
  overflow: hidden;
}

.page-hero {
  padding: 4rem 0 1rem;
}

.page-banner {
  padding: 1.2rem 0 0.8rem;
}

.page-hero-followup {
  padding-top: 0.2rem;
}

.hero-grid,
.two-column,
.split-callout,
.footer-grid {
  display: grid;
  gap: 1.5rem;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.85fr);
  align-items: center;
}

.home-banner {
  padding: 1.2rem 0 1rem;
}

.banner-panel {
  padding: 1.9rem 1.75rem;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(36, 93, 184, 0.94), rgba(17, 57, 118, 0.96)),
    #1e5bb8;
  box-shadow: 0 22px 46px rgba(30, 91, 184, 0.22);
}

.banner-panel h1 {
  margin: 0;
  color: #fff;
  text-align: center;
  white-space: nowrap;
  font-size: clamp(1.8rem, 3.35vw, 3.3rem);
  letter-spacing: -0.03em;
}

.intro-panel {
  max-width: 76rem;
}

.intro-panel p {
  font-size: 1.12rem;
  color: var(--ink);
}

.hero-copy {
  padding-right: 1rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  font-weight: 800;
}

.lead {
  font-size: 1.15rem;
  max-width: 60ch;
}

.narrow {
  max-width: 48rem;
}

.hero-actions,
.callout-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.8rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.88rem 1.2rem;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 12px 26px rgba(13, 106, 107, 0.22);
}

.button-primary:hover {
  color: #fff;
  background: var(--primary-dark);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink);
  border: 1px solid var(--line);
}

.hero-panel,
.panel,
.feature-card,
.highlight-card,
.person-card,
.topic-card,
.publication-card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.hero-card,
.panel,
.feature-card,
.highlight-card,
.person-card,
.topic-card,
.publication-card {
  padding: 1.45rem;
  border-radius: var(--radius-lg);
}

.hero-card {
  background:
    linear-gradient(155deg, rgba(13, 106, 107, 0.1), rgba(255, 255, 255, 0.82)),
    var(--surface-strong);
}

.compact-list,
.news-list,
.simple-list,
.publication-list {
  margin: 0;
  padding-left: 1.2rem;
}

.compact-list li + li,
.news-list li + li,
.simple-list li + li,
.publication-list li + li {
  margin-top: 0.65rem;
}

.section {
  padding: 2.2rem 0;
}

.section-tint {
  background: linear-gradient(180deg, rgba(13, 106, 107, 0.06), rgba(239, 231, 218, 0.18));
}

.section-heading {
  margin-bottom: 1.4rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.stack {
  display: grid;
  gap: 1rem;
}

.two-column {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
}

.split-callout {
  grid-template-columns: minmax(0, 1.2fr) auto;
  align-items: center;
  padding: 1.8rem;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(13, 106, 107, 0.12), rgba(255, 255, 255, 0.7)),
    rgba(255, 255, 255, 0.74);
  box-shadow: var(--shadow);
}

.highlight-tag,
.person-role,
.footer-label,
.panel-note {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
}

.highlight-tag {
  margin-bottom: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.highlights-scroller {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding-bottom: 0.6rem;
  scroll-snap-type: x proximity;
}

.highlight-card-wide {
  min-width: min(360px, 85vw);
  flex: 0 0 min(360px, 85vw);
  scroll-snap-align: start;
}

.video-scroller {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding-bottom: 0.6rem;
  scroll-snap-type: x proximity;
}

.video-card {
  min-width: min(420px, 88vw);
  flex: 0 0 min(420px, 88vw);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
}

.video-card .video-wrap {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
}

.video-card .video-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-card h3 {
  font-size: 1rem;
  margin-top: 0.6rem;
  line-height: 1.35;
  color: var(--ink);
}

.video-card h3 a {
  color: inherit;
  text-decoration: none;
  transition: color 140ms ease;
}

.video-card h3 a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.section-heading-tight {
  margin-bottom: 0.6rem;
}

.news-list {
  list-style: none;
  padding: 0;
}

.news-bullets {
  margin: 0;
  padding-left: 1.4rem;
}

.news-bullets li + li {
  margin-top: 0.75rem;
}

.news-bullets span {
  margin-right: 0.55rem;
  color: var(--ink);
  font-weight: 700;
}

.news-panel {
  width: 100%;
}

.news-list span {
  display: inline-block;
  min-width: 5.6rem;
  margin-right: 0.5rem;
  color: var(--ink);
  font-weight: 700;
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.people-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.people-sidebar {
  position: sticky;
  top: 155px;
}

.people-sidebar-card {
  padding: 1.25rem 1.1rem;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: var(--shadow);
}

.people-sidebar-card + .people-sidebar-card {
  margin-top: 1.25rem;
}

.people-sidebar-card h2 {
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
}

.people-nav {
  display: grid;
  gap: 0.55rem;
}

.people-nav a {
  display: block;
  padding: 0.56rem 0.72rem;
  border-radius: 12px;
  color: var(--ink);
  font-weight: 600;
  transition: background 140ms ease, color 140ms ease, transform 140ms ease;
}

.people-nav a:hover,
.people-nav a.is-active {
  background: rgba(30, 91, 184, 0.12);
  color: var(--primary-dark);
}

.people-nav a:hover {
  transform: translateX(2px);
}

.people-content {
  display: grid;
  gap: 2rem;
}

.people-section h2 {
  margin-bottom: 1rem;
}

#generative-design h2,
#machine-design-automation h2,
#compliant-soft-robotics h2,
#robot-mechanism-design h2,
#mixed-reality-simulation h2,
#embodied-ai h2,
#computational-kinematics h2 {
  font-size: clamp(1.45rem, 2vw, 2rem);
}

.profile-entry {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
  padding: 0 0 1.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.profile-entry:last-child {
  margin-bottom: 0;
}

.profile-entry-text-only {
  grid-template-columns: 1fr;
}

.profile-photo {
  width: 160px;
  height: 190px;
  object-fit: cover;
  border-radius: 18px;
  background: #e3e8ec;
  box-shadow: var(--shadow);
}

.profile-photo-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(145deg, rgba(13, 106, 107, 0.92), rgba(9, 77, 78, 0.98));
}

.profile-body h3 {
  margin-bottom: 0.3rem;
}

.profile-title {
  margin: 0 0 0.7rem;
  color: var(--accent);
  font-weight: 700;
}

.profile-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  margin: 0 0 0.9rem;
}

.profile-meta dt {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-weight: 800;
}

.profile-meta dd {
  margin: 0.15rem 0 0;
  color: var(--ink);
}

.person-card-featured {
  background:
    linear-gradient(145deg, rgba(183, 104, 66, 0.1), rgba(255, 255, 255, 0.85)),
    var(--surface-strong);
}

.pub-links {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 0.35rem;
}

.resource-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

.resource-links a {
  font-weight: 700;
}

.resource-link-muted {
  font-weight: 700;
  color: var(--muted);
}

.section-gap {
  margin-top: 1.5rem;
}

.research-gallery {
  display: grid;
  gap: 1rem;
  margin-top: 1.2rem;
}

.theme-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.theme-summary-card {
  padding: 1.45rem;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.theme-summary-card h2 {
  font-size: clamp(1.35rem, 2vw, 1.8rem);
}

.theme-summary-link {
  display: inline-flex;
  margin-top: 0.85rem;
  font-weight: 800;
}

.topic-highlight-title {
  font-size: clamp(1.3rem, 2vw, 1.75rem);
}

.highlight-figure-link {
  display: block;
  margin-bottom: 1rem;
}

.highlight-figure-image {
  width: min(100%, 680px);
  border-radius: 18px;
  box-shadow: var(--shadow);
  background: #fff;
}

.publication-entry + .publication-entry {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.publication-entry h3 {
  font-size: 1.2rem;
  margin-bottom: 0.3rem;
}

.publication-authors {
  margin: 0 0 0.2rem;
  color: var(--ink);
}

.publication-venue {
  margin: 0;
  color: var(--muted);
}

.recent-figure-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.recent-figure-slot {
  min-height: 220px;
  border: 2px dashed rgba(30, 91, 184, 0.24);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  text-align: center;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.5);
}

.recent-figure-link {
  display: block;
}

.recent-figure-image {
  width: 100%;
  height: 220px;
  object-fit: contain;
  border-radius: 18px;
  box-shadow: var(--shadow);
  background: #fff;
  padding: 0.5rem;
}

.course-resource-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.course-resource-card {
  padding: 1.2rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: var(--shadow);
}

.course-resource-card h3 {
  font-size: 1.15rem;
}

.research-gallery-single {
  grid-template-columns: minmax(0, 1fr);
}

.research-gallery-double {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.research-figure {
  margin: 0;
}

.research-figure img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: var(--shadow);
  background: #e3e8ec;
}

.research-figure figcaption {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer {
  padding: 2rem 0 3rem;
}

.footer-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.page-main {
  min-height: calc(100vh - 220px);
}

@media (max-width: 980px) {
  .hero-grid,
  .two-column,
  .split-callout,
  .footer-grid,
  .card-grid,
  .people-grid,
  .people-layout,
  .profile-entry,
  .profile-meta,
  .research-gallery-double,
  .research-gallery-triple,
  .theme-card-grid,
  .recent-figure-grid,
  .course-resource-grid {
    grid-template-columns: 1fr;
  }

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

  .hero {
    padding-top: 4rem;
  }

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

  .brand-mark {
    height: 96px;
  }

  .nav-shell {
    min-height: auto;
  }

  .banner-panel h1 {
    white-space: normal;
  }

  .people-sidebar {
    position: static;
  }

  .profile-photo {
    width: 140px;
    height: 166px;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .container {
    width: min(calc(100% - 1.2rem), var(--container));
  }

  .main-nav {
    gap: 0.2rem;
  }

  .main-nav a {
    padding: 0.56rem 0.72rem;
  }

  .brand-mark {
    height: 78px;
  }

  .hero-card,
  .panel,
  .feature-card,
  .highlight-card,
  .person-card,
  .topic-card,
  .publication-card,
  .split-callout {
    padding: 1.15rem;
    border-radius: 20px;
  }

  .banner-panel {
    padding: 1.35rem 1rem;
  }
}