:root {
  --bg: #ecf4f6;
  --bg-soft: #f7fbfc;
  --ink: #12262e;
  --ink-muted: #4b646d;
  --line: #c8d8de;
  --primary: #0f6f7f;
  --primary-strong: #0a4f63;
  --sand: #f2eee4;
  --swot: #0d5e8a;
  --smode: #1e7f66;
  --shadow: 0 18px 40px -24px rgba(16, 40, 50, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  font-size: 17px;
  background: linear-gradient(170deg, var(--bg) 0%, #f3f7f8 46%, #edf3f1 100%);
  color: var(--ink);
  line-height: 1.55;
}

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

.site-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(circle at 12% 10%, rgba(15, 111, 127, 0.15), transparent 40%),
    radial-gradient(circle at 88% 20%, rgba(30, 127, 102, 0.15), transparent 33%),
    radial-gradient(circle at 50% 90%, rgba(12, 64, 82, 0.09), transparent 35%);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 12;
  backdrop-filter: blur(8px);
  background: rgba(242, 247, 249, 0.88);
  border-bottom: 1px solid rgba(200, 216, 222, 0.8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem clamp(1rem, 4vw, 2.4rem);
}

.brand {
  font-family: "Source Serif 4", serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 1.1rem;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 220ms ease;
}

.nav a:hover,
.nav a.active {
  border-color: var(--primary);
}

.menu-btn {
  display: none;
  border: 0;
  background: transparent;
  padding: 0.2rem;
}

.menu-btn span {
  display: block;
  width: 1.4rem;
  height: 2px;
  margin: 0.28rem 0;
  background: var(--ink);
}

main {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding-bottom: 2.5rem;
}

.section {
  padding: clamp(1.5rem, 3vw, 2.5rem) 0;
}

.hero {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 1.8rem);
  min-height: auto;
  padding-top: clamp(1.2rem, 2vw, 1.8rem);
}

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.78rem;
  color: var(--primary-strong);
  font-weight: 700;
  margin-bottom: 0.45rem;
}

h1,
h2,
h3 {
  font-family: "Source Serif 4", serif;
  margin: 0;
}

h1 {
  font-size: clamp(1.85rem, 4.8vw, 3rem);
  line-height: 1.08;
}

h2 {
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
}

.lead {
  max-width: 54ch;
  color: var(--ink-muted);
  font-size: clamp(0.98rem, 1.35vw, 1.08rem);
  margin: 0.75rem 0 1rem;
}

.hero-photo {
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow);
  transform: rotate(1deg);
}

.hero-photo img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.btn {
  display: inline-block;
  text-decoration: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.68);
  color: var(--ink);
  font-weight: 600;
  border-radius: 999px;
  padding: 0.46rem 0.82rem;
  transition: transform 200ms ease, background-color 220ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--primary);
  color: #f6fbfd;
  border-color: transparent;
}

.section-head {
  max-width: 74ch;
  margin-bottom: 0.7rem;
}

.section-head p {
  margin-top: 0.35rem;
  color: var(--ink-muted);
}

.cards-3,
.cards-2,
.contact-grid {
  display: grid;
  gap: 0.75rem;
}

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

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

.card,
.timeline-item {
  background: rgba(252, 255, 255, 0.8);
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  box-shadow: var(--shadow);
}

.card {
  padding: 1.05rem;
}

.card h3 {
  margin-bottom: 0.5rem;
}

.card ul {
  margin: 0;
  padding-left: 1.1rem;
}

.card li + li {
  margin-top: 0.3rem;
}

.card p {
  margin: 0;
  color: var(--ink-muted);
}

.chip {
  width: fit-content;
  margin: 0 0 0.55rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: #f4f9fb;
  border-radius: 999px;
  padding: 0.3rem 0.6rem;
  background: var(--primary-strong);
}

.accent-swot {
  border-top: 5px solid var(--swot);
}

.accent-smode {
  border-top: 5px solid var(--smode);
}

.uop-card {
  margin-top: 1rem;
  background: linear-gradient(165deg, rgba(249, 252, 253, 0.94), rgba(241, 247, 247, 0.94));
}

.mission a,
.uop-card a,
.publication-card a,
.contact-grid a {
  color: var(--primary-strong);
  font-weight: 700;
}

.topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding: 0.8rem;
}

.topics p {
  margin: 0;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #f8fcfd;
  color: var(--ink-muted);
  font-size: 0.88rem;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem;
}

.timeline-item {
  padding: 0.65rem 0.75rem;
}

.timeline-item p {
  margin: 0;
}

.year {
  font-weight: 700;
  color: var(--primary-strong);
  margin-bottom: 0.3rem;
}

.publication-card {
  margin-top: 0.75rem;
}

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

.footer {
  border-top: 1px solid rgba(200, 216, 222, 0.8);
  padding: 1rem 1rem 1.4rem;
  text-align: center;
  color: var(--ink-muted);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  animation: reveal 650ms forwards;
}

.reveal:nth-child(2) {
  animation-delay: 120ms;
}

.reveal:nth-child(3) {
  animation-delay: 200ms;
}

@keyframes reveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 960px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .hero-photo {
    order: -1;
    max-width: 480px;
    justify-self: center;
  }

  .cards-3,
  .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 700px) {
  .menu-btn {
    display: block;
  }

  .nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 1rem 1rem;
    background: rgba(246, 250, 251, 0.98);
    border-bottom: 1px solid rgba(200, 216, 222, 0.8);
  }

  .nav a {
    padding: 0.65rem 0;
    border-bottom: 1px solid rgba(200, 216, 222, 0.6);
  }

  .nav.open {
    display: flex;
  }

  .cards-3,
  .cards-2,
  .timeline,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 1.5rem 0;
  }
}

.home-wrap {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.3rem 0 2rem;
}

.home-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 2rem;
  align-items: start;
}

.profile {
  position: sticky;
  top: 78px;
  padding: 0.9rem;
  background: rgba(251, 254, 255, 0.92);
}

.avatar {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 0.75rem;
  border: 1px solid var(--line);
  margin-bottom: 0.7rem;
}

.profile h1 {
  font-size: 1.65rem;
  line-height: 1.12;
  margin-bottom: 0.4rem;
}

.title-line {
  margin: 0.08rem 0;
  color: var(--ink-muted);
  font-size: 0.89rem;
}

.meta-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 0;
  display: grid;
  gap: 0.2rem;
}

.meta-list li {
  font-size: 0.9rem;
}

.meta-list a {
  color: var(--primary-strong);
  text-decoration: none;
}

.meta-list a:hover {
  text-decoration: underline;
}

.home-content {
  display: grid;
  gap: 0.95rem;
  padding-top: 0.1rem;
}

.home-section {
  background: rgba(252, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  padding: 0.9rem 1rem;
  box-shadow: var(--shadow);
}

.home-section h2 {
  font-size: 1.45rem;
  margin-bottom: 0.35rem;
}

.home-section p {
  margin: 0.35rem 0;
  color: var(--ink-muted);
  max-width: 74ch;
  font-size: 1rem;
}

.home-globe {
  margin: 0.75rem 0 0;
  width: min(280px, 100%);
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  overflow: hidden;
  background: #f7fbfc;
}

.home-globe img {
  width: 100%;
  display: block;
}

.plain-list {
  margin: 0.35rem 0 0;
  padding-left: 1.1rem;
  color: var(--ink-muted);
  font-size: 0.98rem;
}

.plain-list li + li {
  margin-top: 0.22rem;
}

.links-list a {
  color: var(--primary-strong);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.links-list a:hover {
  border-bottom-color: currentColor;
}

.role-list li,
.news-list li {
  color: var(--ink);
}

.role-list a {
  color: var(--primary-strong);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.role-list a:hover {
  border-bottom-color: currentColor;
}

.news-list a {
  color: var(--primary-strong);
  text-decoration: underline;
}

.uop-logo-feature {
  margin-top: 0.75rem;
  display: inline-block;
  border-radius: 0.55rem;
  border: 1px solid var(--line);
  background: rgba(250, 253, 254, 0.95);
  padding: 0.35rem 0.5rem;
}

.uop-logo-feature img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

@media (max-width: 900px) {
  .home-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .profile {
    position: static;
    max-width: 420px;
  }

  .avatar {
    max-width: 220px;
  }
}

.publications-hero {
  padding-bottom: 0.4rem;
}

.pub-controls {
  display: grid;
  gap: 0.35rem;
  max-width: 900px;
  padding: 0.75rem;
  margin: 0 auto;
}

.pub-controls label {
  font-weight: 700;
  font-size: 0.88rem;
}

.pub-controls input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  padding: 0.42rem 0.55rem;
  font: inherit;
  color: var(--ink);
  background: #fff;
}

.pub-meta {
  font-size: 0.85rem;
  margin: 0;
}

.pub-sections {
  display: grid;
  gap: 0.9rem;
  padding-top: 0.1rem;
  max-width: 900px;
  margin: 0 auto;
}

.pub-year-group {
  display: grid;
  gap: 0.4rem;
}

.pub-year {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.92rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary-strong);
}

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

.pub-item {
  display: block;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.pub-citation {
  margin: 0;
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.55;
}

.inline-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary-strong);
  text-decoration: underline;
}

.inline-link:hover {
  text-decoration-thickness: 2px;
}


pre {
  overflow-x: auto;
  margin: 0.5rem 0 0;
  padding: 0.5rem;
  border-radius: 0.45rem;
  border: 1px solid var(--line);
  background: #f8fbfc;
}

.research-wrap {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.2rem 0 2.2rem;
}

.research-intro {
  padding-bottom: 0.2rem;
}

.research-intro h1 {
  font-size: clamp(2rem, 4vw, 2.7rem);
}

.research-intro p {
  margin: 0.4rem 0 0;
  color: var(--ink-muted);
}

.research-section {
  margin-top: 1.15rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  background: rgba(252, 255, 255, 0.75);
  box-shadow: var(--shadow);
}

.research-head h2 {
  margin-bottom: 0.3rem;
  font-size: 1.5rem;
}

.research-head p {
  margin: 0 0 0.65rem;
  color: var(--ink-muted);
  font-size: 1rem;
  max-width: 80ch;
}

.research-media-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  margin-bottom: 0.65rem;
}

.research-media-grid.two-up {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.research-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  overflow: hidden;
  background: rgba(248, 252, 253, 0.9);
}

.research-figure img {
  width: 100%;
  height: clamp(240px, 35vw, 430px);
  object-fit: contain;
  background: #f6fafb;
}

.uop-feature-logo {
  background: #ffffff;
}

.uop-feature-logo a {
  display: block;
  height: 100%;
}

.uop-feature-logo img {
  background: #ffffff;
  padding: 0.8rem;
}

.paper-block h3 {
  margin: 0 0 0.45rem;
  font-size: 1rem;
  font-family: "Space Grotesk", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--primary-strong);
}

.paper-rows {
  border-top: 1px solid var(--line);
}

.paper-item {
  margin: 0;
  padding: 0.58rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-size: 0.98rem;
  line-height: 1.5;
}

.research-head a {
  color: var(--primary-strong);
  font-weight: 700;
}

@media (max-width: 780px) {
  body {
    font-size: 16px;
  }

  .research-section {
    padding: 0.8rem;
  }

  .research-media-grid.two-up {
    grid-template-columns: 1fr;
  }
}