:root {
  --cream: #f4efe6;
  --cream-deep: #e7dfd0;
  --surface: #faf6ef;
  --surface-strong: #fffaf2;
  --ink: #1c1714;
  --ink-soft: #4f463e;
  --muted: #7c7166;
  --magenta: #b3204d;
  --magenta-deep: #8f1a3e;
  --magenta-soft: rgba(179, 32, 77, 0.1);
  --amber: #d9960a;
  --amber-deep: #a87308;
  --amber-soft: rgba(217, 150, 10, 0.14);
  --teal: #0b8a7f;
  --teal-deep: #07665e;
  --teal-soft: rgba(11, 138, 127, 0.12);
  --white: #fffdf8;
  --line: rgba(28, 23, 20, 0.1);
  --line-strong: rgba(28, 23, 20, 0.16);
  --radius: 18px;
  --radius-lg: 28px;
  --font-display: "IBM Plex Sans", "Helvetica Neue", sans-serif;
  --font-body: "IBM Plex Sans", "Helvetica Neue", sans-serif;
  --header-h: 72px;
  --max: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--cream);
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
  font-weight: 600;
}

p {
  margin: 0;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 70% 45% at 0% 0%, rgba(11, 138, 127, 0.16), transparent 55%),
    radial-gradient(ellipse 55% 40% at 100% 8%, rgba(217, 150, 10, 0.18), transparent 50%),
    radial-gradient(ellipse 45% 35% at 70% 100%, rgba(179, 32, 77, 0.1), transparent 55%),
    linear-gradient(165deg, #faf6ef 0%, var(--cream) 42%, #ebe2d2 100%);
}

.page-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.28;
  background-image:
    linear-gradient(rgba(28, 23, 20, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(28, 23, 20, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 65%);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px) saturate(1.1);
  background: rgba(250, 246, 239, 0.72);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.site-header.scrolled {
  border-bottom-color: var(--line);
  background: rgba(250, 246, 239, 0.92);
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  z-index: 2;
}

.brand img {
  border-radius: 10px;
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-links {
  display: flex;
  gap: 1.25rem;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--teal-deep);
}

.nav-links a[aria-current="page"] {
  color: var(--magenta);
  font-weight: 600;
  box-shadow: inset 0 -2px 0 var(--magenta);
}

.btn-nav[aria-current="page"] {
  background: var(--magenta);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 7px;
  z-index: 2;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin-inline: auto;
  background: var(--ink);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4.5px) rotate(-45deg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.85rem 1.35rem;
  border-radius: 14px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1.5px solid transparent;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

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

.btn-primary {
  background: var(--magenta);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--magenta-deep);
}

.btn-ghost {
  background: var(--surface-strong);
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--teal);
  color: var(--teal-deep);
  background: var(--teal-soft);
}

.btn-nav {
  background: var(--teal-deep);
  color: var(--white);
  padding: 0.65rem 1.1rem;
  font-size: 0.9rem;
}

.btn-nav:hover {
  background: var(--magenta);
}

.btn-on-dark {
  background: var(--surface-strong);
  color: var(--ink);
}

.btn-on-dark:hover {
  background: var(--white);
  color: var(--magenta-deep);
}

.btn-ghost-light {
  border-color: rgba(250, 246, 239, 0.4);
  color: var(--cream);
}

.btn-ghost-light:hover {
  border-color: #f0c45a;
  color: #f0c45a;
  background: rgba(240, 196, 90, 0.08);
}

/* Hero */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3.5rem;
  min-height: calc(100svh - var(--header-h));
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.5rem;
  align-items: center;
}

.eyebrow {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-deep);
  margin-bottom: 1rem;
}

.eyebrow.light {
  color: #f0c45a;
}

.brand-hero {
  font-size: clamp(2.8rem, 7vw, 4.6rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: 1rem;
  max-width: 10ch;
}

.hero-lead {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--ink-soft);
  max-width: 34ch;
  margin-bottom: 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-visual {
  position: relative;
  min-height: min(58vh, 520px);
  display: grid;
  place-items: center;
}

.grid-mark {
  width: min(100%, 440px);
  aspect-ratio: 1;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 3.5%;
  padding: 8%;
  border-radius: 22%;
  background:
    linear-gradient(150deg, var(--surface-strong) 0%, #efe6d6 55%, #e4d8c4 100%);
  border: 1px solid rgba(28, 23, 20, 0.06);
}

.grid-mark .cell {
  border-radius: 18%;
  background: var(--cream-deep);
  transform: scale(0.85);
  opacity: 0;
  animation: cell-in 0.55s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.grid-mark .cell.amber {
  background: var(--amber);
}

.grid-mark .cell.teal {
  background: var(--teal);
}

.grid-mark .cell.magenta {
  background: var(--magenta);
}

.grid-mark .cell.pulse {
  animation:
    cell-in 0.55s cubic-bezier(0.22, 1, 0.36, 1) forwards,
    pulse-core 2.8s ease-in-out 1s infinite;
}

@keyframes cell-in {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse-core {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.08);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: rise 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero-copy .reveal:nth-child(1) {
  animation-delay: 0.05s;
}
.hero-copy .reveal:nth-child(2) {
  animation-delay: 0.15s;
}
.hero-copy .reveal:nth-child(3) {
  animation-delay: 0.25s;
}
.hero-copy .reveal:nth-child(4) {
  animation-delay: 0.35s;
}
.hero-visual.reveal {
  animation-delay: 0.2s;
}

@keyframes rise {
  to {
    opacity: 1;
    transform: none;
  }
}

/* Inner pages */
.page-hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3rem 1.5rem 1.5rem;
}

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  max-width: 18ch;
  margin-bottom: 1rem;
  color: var(--ink);
}

.page-lead {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 54ch;
}

.page-section {
  padding-top: 1.5rem;
}

.home-links {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, transparent, rgba(11, 138, 127, 0.035), transparent);
}

/* Trust */
.trust {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem 3.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 2rem;
  border-bottom: 1px solid var(--line);
}

.trust-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink-soft);
}

.trust-list li {
  position: relative;
}

.trust-list li:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -0.85rem;
  top: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--amber);
  transform: translateY(-50%);
}

/* Sections */
section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

.section-head {
  max-width: 620px;
  margin-bottom: 2.75rem;
}

.section-head.inline {
  display: flex;
  justify-content: space-between;
  align-items: end;
  max-width: none;
}

.section-head h2 {
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  margin-bottom: 0.85rem;
}

.section-head p:not(.eyebrow) {
  color: var(--ink-soft);
}

/* Pillars — no cards: open layout with accent dots */
.pillar-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  padding: 0.25rem 0 0.5rem;
}

.pillar {
  padding-right: 0.5rem;
}

.pillar h3 {
  font-size: 1.25rem;
  margin: 0.85rem 0 0.55rem;
}

.pillar p {
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.pillar-dot {
  display: block;
  width: 14px;
  height: 14px;
  border-radius: 4px;
}

.pillar-dot.magenta {
  background: var(--magenta);
}
.pillar-dot.amber {
  background: var(--amber);
}
.pillar-dot.teal {
  background: var(--teal);
}

/* Research disciplines — interactive, so light containers OK */
.discipline-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.discipline {
  display: block;
  padding: 1.75rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  border-top: 3px solid transparent;
  background: color-mix(in srgb, var(--surface-strong) 80%, transparent);
  transition: background 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}

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

.discipline[data-accent="magenta"] {
  border-top-color: var(--magenta);
  background: linear-gradient(180deg, var(--magenta-soft), var(--surface-strong));
}
.discipline[data-accent="amber"] {
  border-top-color: var(--amber);
  background: linear-gradient(180deg, var(--amber-soft), var(--surface-strong));
}
.discipline[data-accent="teal"] {
  border-top-color: var(--teal);
  background: linear-gradient(180deg, var(--teal-soft), var(--surface-strong));
}

.discipline[data-accent="magenta"]:hover {
  border-color: color-mix(in srgb, var(--magenta) 35%, var(--line));
}
.discipline[data-accent="amber"]:hover {
  border-color: color-mix(in srgb, var(--amber) 35%, var(--line));
}
.discipline[data-accent="teal"]:hover {
  border-color: color-mix(in srgb, var(--teal) 35%, var(--line));
}

.discipline-index {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--teal-deep);
  letter-spacing: 0.08em;
}

.discipline[data-accent="magenta"] .discipline-index {
  color: var(--magenta);
}
.discipline[data-accent="amber"] .discipline-index {
  color: var(--amber-deep);
}
.discipline[data-accent="teal"] .discipline-index {
  color: var(--teal-deep);
}

.discipline h3 {
  font-size: 1.45rem;
  margin: 0.65rem 0 0.5rem;
}

.discipline p {
  color: var(--ink-soft);
  margin-bottom: 1.1rem;
  max-width: 36ch;
}

.discipline-link {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--teal-deep);
}

.discipline[data-accent="magenta"] .discipline-link {
  color: var(--magenta);
}
.discipline[data-accent="amber"] .discipline-link {
  color: var(--amber-deep);
}

.discipline:hover .discipline-link {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Team */
.team.page-section {
  background:
    linear-gradient(180deg, transparent, rgba(13, 148, 136, 0.06), transparent);
}

.team-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem 2rem;
}

.team-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}

.avatar {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--white);
  flex-shrink: 0;
}

.avatar[data-tone="magenta"] {
  background: var(--magenta);
}
.avatar[data-tone="teal"] {
  background: var(--teal);
}
.avatar[data-tone="amber"] {
  background: var(--amber);
  color: var(--ink);
}

.team-list h3 {
  font-size: 1.1rem;
  margin-bottom: 0.2rem;
}

.team-list p {
  color: var(--muted);
  font-size: 0.92rem;
}

/* Projects */
.project-list {
  display: grid;
  gap: 0;
}

.project {
  padding: 1.5rem 1.25rem;
  margin-bottom: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 1.25rem;
  align-items: start;
}

.project:last-child {
  margin-bottom: 0;
}

.project h3 {
  font-size: 1.35rem;
  grid-column: 2;
  grid-row: 1;
}

.project p {
  grid-column: 2;
  color: var(--ink-soft);
}

.tag {
  display: inline-block;
  width: fit-content;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.35rem 0.55rem;
  border-radius: 8px;
}

.tag.teal {
  color: var(--teal-deep);
  background: var(--teal-soft);
}
.tag.amber {
  color: var(--amber-deep);
  background: var(--amber-soft);
}
.tag.magenta {
  color: var(--magenta-deep);
  background: var(--magenta-soft);
}

/* Publications */
.pub-list li {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 1.25rem;
  padding: 1.4rem 0;
  border-top: 1px solid var(--line);
}

.pub-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.pub-list time {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--amber);
  padding-top: 0.2rem;
}

.pub-list h3 {
  font-size: 1.2rem;
}

.pub-list p {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* Events */
.event-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.event-strip article {
  padding: 1.5rem 1.35rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, var(--teal-soft), var(--surface-strong));
}

.event-strip article:nth-child(2) {
  background:
    linear-gradient(180deg, var(--amber-soft), var(--surface-strong));
}

.event-strip article:nth-child(2) .event-date {
  color: var(--amber-deep);
}

.event-date {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--teal-deep);
  margin-bottom: 0.5rem;
}

.event-strip h3 {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.event-strip p:not(.event-date) {
  color: var(--ink-soft);
}

/* CTA */
.cta {
  max-width: none;
  padding: 0;
}

.cta-inner {
  max-width: var(--max);
  margin: 0 auto 2rem;
  padding: 3.5rem 1.75rem;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 88% 18%, rgba(217, 150, 10, 0.35), transparent 42%),
    radial-gradient(circle at 12% 85%, rgba(11, 138, 127, 0.32), transparent 46%),
    radial-gradient(circle at 50% 0%, rgba(179, 32, 77, 0.22), transparent 40%),
    linear-gradient(145deg, #1f1718 0%, #2a1a24 48%, #123832 100%);
  color: var(--cream);
  border: 1px solid rgba(250, 246, 239, 0.08);
}

.cta-inner h2 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  max-width: 16ch;
  margin-bottom: 0.85rem;
}

.cta-inner > p:not(.eyebrow) {
  color: rgba(242, 236, 224, 0.78);
  max-width: 42ch;
  margin-bottom: 1.75rem;
}

/* Footer */
.site-footer {
  max-width: var(--max);
  margin: 2rem auto 0;
  padding: 3rem 1.5rem 2.5rem;
  display: grid;
  gap: 2rem;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(11, 138, 127, 0.04), transparent 40%);
}

.footer-brand {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  max-width: 560px;
}

.footer-brand img {
  border-radius: 12px;
}

.footer-brand p {
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.footer-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 220px));
  gap: 1.5rem;
}

.footer-meta h4 {
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.65rem;
}

.footer-meta p {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
}

.footer-meta a:hover {
  color: var(--magenta);
}

.copyright {
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--muted);
}

/* Scroll reveal for sections */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.fade-up.visible {
  opacity: 1;
  transform: none;
}

/* Responsive */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 1.75rem;
    gap: 1.5rem;
  }

  .brand-hero {
    max-width: none;
  }

  .hero-visual {
    min-height: auto;
  }

  .grid-mark {
    width: min(72vw, 320px);
  }

  .pillar-row,
  .discipline-grid,
  .team-list,
  .event-strip {
    grid-template-columns: 1fr;
  }

  .project {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .project h3,
  .project p {
    grid-column: 1;
  }
}

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

  .nav-panel {
    position: fixed;
    inset: 0;
    background: rgba(250, 246, 239, 0.98);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  .nav-links a[aria-current="page"] {
    box-shadow: none;
  }

  .nav-panel.open {
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links {
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
  }

  .nav-links a {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--ink);
  }

  .cta-inner {
    margin-inline: 1rem;
    border-radius: 22px;
  }

  .footer-brand,
  .footer-meta {
    grid-template-columns: 1fr;
  }
}

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

  .reveal,
  .grid-mark .cell,
  .fade-up {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}