:root {
  --bg: #f6f4ee;
  --bg-elev: #fbfaf5;
  --ink: #0d1411;
  --ink-dim: #4d5a54;
  --ink-faint: #8e948c;
  --line: #e3dfd6;
  --line-soft: #ece8df;
  --line-strong: #c7c1b3;
  --accent: #2d5a42;
  --accent-strong: #163a29;
  --glow: rgba(45, 90, 66, 0.18);
  --serif: "Fraunces", "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --max: 1320px;
  --pad: clamp(20px, 4vw, 64px);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
  overflow-x: hidden;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

@media (max-width: 520px) {
  :root {
    --pad: 18px;
  }
}

body {
  background:
    radial-gradient(1200px 800px at 80% -10%, rgba(45, 90, 66, 0.06), transparent 60%),
    radial-gradient(900px 700px at -10% 10%, rgba(30, 70, 55, 0.04), transparent 55%),
    var(--bg);
  min-height: 100vh;
}

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

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

::selection {
  background: var(--accent);
  color: #ffffff;
}

/* Background effects */
.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 1;
  opacity: 0.045;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

#bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  opacity: 0.7;
}

main,
.nav,
.foot {
  position: relative;
  z-index: 2;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px var(--pad);
  position: relative;
  background: rgba(246, 244, 238, 0.75);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  z-index: 3;
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
}

.mark {
  width: 14px;
  height: 14px;
  position: relative;
  display: inline-block;
}
.mark::before,
.mark::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--accent);
}
.mark::after {
  transform: rotate(45deg);
  opacity: 0.5;
}

.wordmark {
  letter-spacing: 0.2em;
}

.nav__links {
  display: flex;
  gap: 32px;
}

.nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line-strong);
  cursor: pointer;
  position: relative;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s ease;
}
.nav__toggle:hover {
  border-color: var(--accent);
}
.nav__toggle-bar {
  position: absolute;
  left: 10px;
  right: 10px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.25s ease, opacity 0.2s ease, top 0.25s ease;
}
.nav__toggle-bar:nth-child(1) { top: 14px; }
.nav__toggle-bar:nth-child(2) { top: 24px; }
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  top: 19px;
  transform: rotate(45deg);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) {
  top: 19px;
  transform: rotate(-45deg);
}

.nav__links a {
  color: var(--ink-dim);
  transition: color 0.25s ease;
}
.nav__links a:hover {
  color: var(--ink);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--glow);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.85);
  }
}

/* Shared */
main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.eyebrow--mono {
  color: var(--ink-faint);
}

.section__head {
  max-width: 920px;
  margin: 0 0 64px;
  display: grid;
  gap: 20px;
}

.section__tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--ink-faint);
  text-transform: uppercase;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.section__title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(34px, 4.8vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin: 0;
  max-width: 22ch;
}
.section__title em {
  font-style: italic;
  color: var(--accent-strong);
  font-weight: 300;
}

.section__sub {
  max-width: 64ch;
  color: var(--ink-dim);
  font-size: 17px;
  line-height: 1.65;
  margin: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn--primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.btn--primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
  transform: translateY(-1px);
}

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

.btn--full {
  width: 100%;
  height: 54px;
  justify-content: space-between;
}

.btn__arrow {
  transition: transform 0.25s ease;
}
.btn:hover .btn__arrow {
  transform: translateX(4px);
}

/* Hero */
.hero {
  padding: clamp(40px, 6vw, 80px) 0 clamp(48px, 6vw, 80px);
  position: relative;
  display: grid;
  gap: clamp(56px, 9vw, 120px);
}

.hero__foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  flex-wrap: wrap;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

/* Hero marquee: RESEARCH. FINANCE. INTELLIGENCE. */
.hero__marquee {
  padding: clamp(18px, 3vw, 44px) 0;
  overflow: hidden;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  mask-image: linear-gradient(
    90deg,
    transparent 0,
    black 4%,
    black 96%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent 0,
    black 4%,
    black 96%,
    transparent 100%
  );
}

.hero__marquee-track {
  display: inline-flex;
  align-items: baseline;
  white-space: nowrap;
  animation: hero-marquee 36s linear infinite;
  will-change: transform;
}

.hero__marquee:hover .hero__marquee-track {
  animation-play-state: paused;
}

.hero__marquee-word {
  font-family: var(--serif);
  font-weight: 500;
  font-style: normal;
  font-size: clamp(80px, 10vw, 156px);
  line-height: 1.05;
  letter-spacing: 0.025em;
  color: var(--ink);
  text-transform: uppercase;
  padding-right: clamp(48px, 6vw, 96px);
}

.hero__marquee-dot {
  color: var(--accent);
  font-style: normal;
  margin-left: 0.04em;
}

@media (prefers-reduced-motion: reduce) {
  .hero__marquee-track {
    animation: none;
  }
}

@keyframes hero-marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.hero__body {
  display: grid;
  gap: clamp(28px, 3.5vw, 44px);
  max-width: 880px;
  margin: 0 auto;
  text-align: center;
  justify-items: center;
}

.hero__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(40px, 6vw, 80px);
  flex-wrap: wrap;
}

.hero__title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(44px, 8vw, 112px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  margin: 0;
  max-width: 16ch;
  text-align: center;
}
.hero__title .line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.08em;
}
.hero__title .line__inner {
  display: block;
  transform: translateY(110%);
  transition:
    transform 1s cubic-bezier(0.2, 0.7, 0.2, 1),
    opacity 1s ease;
  opacity: 0;
  will-change: transform;
}
.hero__title .line--in .line__inner {
  transform: none;
  opacity: 1;
}
.hero__title em {
  font-style: italic;
  color: var(--accent-strong);
  font-weight: 300;
}

.hero__lede {
  max-width: 58ch;
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.6;
  color: var(--ink-dim);
  margin: 0;
  text-align: center;
}

.hero__cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin: 0;
  justify-content: center;
}

.hero__ticker {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
  overflow: hidden;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ink-faint);
  text-transform: uppercase;
  mask-image: linear-gradient(
    90deg,
    transparent 0,
    black 8%,
    black 92%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent 0,
    black 8%,
    black 92%,
    transparent 100%
  );
}

.ticker {
  display: inline-flex;
  gap: 28px;
  white-space: nowrap;
  animation: ticker 60s linear infinite;
  padding-left: 0;
}

@keyframes ticker {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* Thesis */
.thesis {
  padding: clamp(80px, 12vw, 160px) 0;
  border-top: 1px solid var(--line-soft);
}

.thesis__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(48px, 6vw, 96px);
}

@media (min-width: 960px) {
  .thesis__grid {
    grid-template-columns: 0.95fr 1.05fr;
  }
}

.thesis__lede {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(20px, 1.8vw, 26px);
  line-height: 1.45;
  color: var(--ink);
  margin: 0;
  max-width: 42ch;
}

.principles {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0;
}

.principles li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line-soft);
  align-items: baseline;
}
.principles li:first-child {
  border-top: 1px solid var(--line-soft);
}

.principles__num {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  font-size: 22px;
  color: var(--accent);
}

.principles h3 {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 17px;
  letter-spacing: 0.01em;
  margin: 0 0 8px;
  color: var(--ink);
}

.principles p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.65;
  max-width: 52ch;
}

/* Programs */
.programs {
  padding: clamp(80px, 12vw, 160px) 0;
  border-top: 1px solid var(--line-soft);
}

.programs__grid {
  display: grid;
  gap: 1px;
  grid-template-columns: 1fr;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 720px) {
  .programs__grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 1080px) {
  .programs__grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.program {
  background: var(--bg);
  padding: 36px clamp(24px, 3vw, 40px);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: background 0.35s ease;
  position: relative;
}
.program:hover {
  background: var(--bg-elev);
  box-shadow: 0 1px 0 rgba(13, 20, 17, 0.02), 0 12px 32px -16px rgba(13, 20, 17, 0.08);
}

.program header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}

.program__idx {
  color: var(--accent);
}

.program h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 26px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
}

.program > p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.65;
}

.program__tags {
  list-style: none;
  padding: 0;
  margin: auto 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
  padding-top: 24px;
}

.program__tags li {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 6px 10px;
}

/* Metrics */
.metrics {
  padding: clamp(80px, 12vw, 140px) 0;
  border-top: 1px solid var(--line-soft);
}

.metrics__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 720px) {
  .metrics__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.metric {
  background: var(--bg);
  padding: 40px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 220px;
  justify-content: space-between;
}

.metric__value {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(44px, 5.2vw, 76px);
  line-height: 1;
  color: var(--accent-strong);
  letter-spacing: -0.025em;
}
.metric__value span {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ink-dim);
  letter-spacing: 0.08em;
  margin-left: 2px;
}

.metric__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-dim);
  line-height: 1.6;
}

/* Affiliations / logo grid */
.affiliated {
  padding: clamp(80px, 12vw, 140px) 0;
  border-top: 1px solid var(--line-soft);
}

.logo-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.logo-cell {
  background: var(--bg);
  flex: 1 1 180px;
  max-width: calc(25% - 1px);
  min-height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 18px;
  text-align: center;
  transition: background 0.3s ease;
  position: relative;
}

.logo-cell:has(img) .logo-cell__mark {
  display: none;
}

.logo-cell:hover {
  background: var(--bg-elev);
}

.logo-cell__mark {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 14px;
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--ink-faint);
  filter: grayscale(100%);
  opacity: 0.85;
  transition: color 0.3s ease, opacity 0.3s ease, filter 0.3s ease;
}

.logo-cell:hover .logo-cell__mark {
  color: var(--ink);
  opacity: 1;
  filter: none;
}

.logo-cell img {
  max-width: 100%;
  max-height: 56px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.7;
  transition: opacity 0.3s ease, filter 0.3s ease;
}

.logo-cell:hover img {
  opacity: 1;
  filter: none;
}

/* Collaborate */
.collaborate {
  padding: clamp(80px, 12vw, 160px) 0;
  border-top: 1px solid var(--line-soft);
}

.collaborate__grid {
  display: grid;
  gap: clamp(40px, 5vw, 80px);
  grid-template-columns: 1fr;
  align-items: start;
}

@media (min-width: 960px) {
  .collaborate__grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.partners {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
}

.partners li {
  padding: 24px 0;
  border-bottom: 1px solid var(--line-soft);
}
.partners li:first-child {
  border-top: 1px solid var(--line-soft);
}

.partners__num {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
  margin-right: 10px;
  display: inline-block;
  min-width: 22px;
}

.partners h4 {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 16px;
  margin: 0 0 6px;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.partners p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 14.5px;
  line-height: 1.6;
  max-width: 56ch;
}

/* Contact form */
.contact {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: clamp(28px, 3vw, 40px);
  display: grid;
  gap: 18px;
  position: relative;
  box-shadow: 0 1px 0 rgba(13, 20, 17, 0.02), 0 24px 48px -24px rgba(13, 20, 17, 0.08);
}

.contact__head {
  margin-bottom: 8px;
  display: grid;
  gap: 10px;
}

.contact__head p {
  margin: 0;
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.35;
  color: var(--ink);
  max-width: 28ch;
}

.field {
  display: grid;
  gap: 8px;
}

.field__label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

.field input,
.field textarea {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  padding: 10px 0;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s ease;
  resize: vertical;
}
.field input:focus,
.field textarea:focus {
  border-color: var(--accent);
}

.contact__ack {
  margin: 0;
  color: var(--accent-strong);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.field__meta {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

.field__meta--over {
  color: #a14040;
}

.field input[type="file"] {
  padding: 10px 0;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-faint);
  cursor: pointer;
}

.field input[type="file"]::file-selector-button {
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 8px 14px;
  margin-right: 14px;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.field input[type="file"]::file-selector-button:hover {
  border-color: var(--accent);
  background: var(--bg-elev);
}

.careers {
  padding: clamp(40px, 6vw, 80px) 0 clamp(60px, 8vw, 120px);
  max-width: 720px;
  margin: 0 auto;
  display: grid;
  gap: clamp(32px, 5vw, 56px);
}

/* Footer */
.foot {
  border-top: 1px solid var(--line-soft);
  margin-top: clamp(60px, 10vw, 120px);
  padding: 64px var(--pad) 32px;
  max-width: var(--max);
  margin-left: auto;
  margin-right: auto;
}

.foot__top {
  display: grid;
  gap: 48px;
  grid-template-columns: 1fr;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--line-soft);
}

@media (min-width: 800px) {
  .foot__top {
    grid-template-columns: 1fr 1.2fr;
  }
}

.foot__brand p {
  margin: 14px 0 0;
  color: var(--ink-dim);
  max-width: 36ch;
  font-size: 14.5px;
}

.foot__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.foot__cols h5 {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 14px;
  font-weight: 500;
}

.foot__cols ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.foot__cols a {
  color: var(--ink-dim);
  font-size: 14.5px;
  transition: color 0.2s ease;
}
.foot__cols a:hover {
  color: var(--ink);
}

.foot__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-faint);
  flex-wrap: wrap;
  gap: 12px;
}

.foot__status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

/* ============================================================
   Responsive
   Breakpoints:
     <= 980px  : tablet landscape and below, tighten heros
     <= 760px  : tablet portrait, main mobile layout shifts
     <= 560px  : phone, single-column patterns
     <= 420px  : small phone, stacked CTAs, tighter type
   ============================================================ */

@media (max-width: 980px) {
  .hero {
    padding: clamp(56px, 9vw, 100px) 0 clamp(60px, 10vw, 120px);
  }
  .hero--page {
    padding: clamp(40px, 6vw, 72px) 0 clamp(32px, 5vw, 56px);
  }
  .thesis,
  .programs,
  .metrics,
  .lab,
  .collaborate,
  .affiliated {
    padding: clamp(56px, 10vw, 100px) 0;
  }
  .logo-cell {
    max-width: calc(33.333% - 1px);
    flex-basis: 160px;
  }
}

@media (max-width: 760px) {
  .nav {
    padding: 14px var(--pad);
    gap: 10px;
    flex-wrap: nowrap;
  }
  .nav__toggle {
    display: inline-flex;
  }
  .nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 8px var(--pad) 20px;
    background: rgba(246, 244, 238, 0.98);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.22s ease, opacity 0.22s ease, visibility 0.22s;
  }
  .nav__links.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav__links a {
    display: block;
    width: 100%;
    font-size: 13px;
    letter-spacing: 0.14em;
    padding: 14px 0;
    border-bottom: 1px solid var(--line-soft);
    min-height: 0;
  }
  .nav__links a:last-child {
    border-bottom: 0;
  }
  .hero__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding-bottom: 22px;
    margin-bottom: clamp(28px, 5vw, 48px);
  }
  .hero__foot {
    font-size: 10px;
    letter-spacing: 0.18em;
    padding: 14px 0 0;
  }
  .hero__marquee {
    padding: clamp(10px, 2vw, 16px) 0;
  }
  .hero__marquee-word {
    font-size: clamp(56px, 10vw, 100px);
    padding-right: clamp(32px, 5vw, 64px);
  }
  .hero__marquee-track {
    animation-duration: 36s;
  }
  .hero__title {
    font-size: clamp(38px, 11vw, 56px);
    max-width: 100%;
  }
  .hero__lede {
    font-size: clamp(15px, 4vw, 18px);
  }
  .hero {
    padding: clamp(28px, 6vw, 56px) 0 clamp(32px, 6vw, 56px);
    gap: clamp(24px, 5vw, 40px);
  }
  .hero__body {
    gap: clamp(20px, 4vw, 28px);
  }
  .section__head {
    margin-bottom: clamp(36px, 6vw, 56px);
  }
  .section__title {
    font-size: clamp(28px, 6.8vw, 44px);
    max-width: 100%;
  }
  .section__sub {
    font-size: 15px;
  }
  .btn {
    height: 46px;
    padding: 0 18px;
    font-size: 11.5px;
    letter-spacing: 0.14em;
  }
  .hero--page .hero__title {
    font-size: clamp(34px, 9vw, 52px);
    margin-bottom: 22px;
  }
  .hero--page .hero__lede {
    font-size: clamp(15px, 4vw, 18px);
  }
  .lab-intro {
    gap: 14px;
  }
  .lab-intro__label {
    padding-top: 0;
  }
  .lab-intro__statement {
    font-size: clamp(22px, 6vw, 30px);
    line-height: 1.22;
    max-width: 100%;
  }
  .lab-intro__detail {
    font-size: clamp(15px, 4vw, 17px);
    max-width: 100%;
  }
  .programs--page,
  .lab--page {
    padding-bottom: clamp(48px, 8vw, 80px);
  }
  .page-cta {
    margin-top: clamp(36px, 6vw, 56px);
    padding-top: clamp(24px, 4vw, 36px);
  }
  .program {
    padding: 28px 22px;
  }
  .program h3 {
    font-size: 22px;
  }
  .thesis {
    border-top: 1px solid var(--line-soft);
  }
  .thesis__lede {
    font-size: 19px;
  }
  .principles li {
    grid-template-columns: 40px 1fr;
    gap: 14px;
    padding: 22px 0;
  }
  .principles__num {
    font-size: 18px;
  }
  .partners li {
    padding: 20px 0;
  }
  .partners__num {
    margin-right: 8px;
    min-width: 20px;
  }
  .foot {
    padding: 48px var(--pad) 28px;
  }
  .foot__top {
    gap: 36px;
    padding-bottom: 36px;
  }
  .contact {
    padding: 24px;
  }
  .contact__head p {
    font-size: 18px;
  }
  .field input,
  .field textarea {
    font-size: 16px; /* prevent iOS zoom on focus */
  }
  .nav__links a,
  .btn {
    min-height: 38px;
    display: inline-flex;
    align-items: center;
  }
}

@media (max-width: 560px) {
  .wordmark {
    display: none;
  }
  .nav__brand {
    gap: 0;
  }
  .metrics__grid {
    grid-template-columns: 1fr;
  }
  .metric {
    min-height: 160px;
    padding: 28px 22px;
  }
  .metric__value {
    font-size: clamp(40px, 12vw, 60px);
  }
  .foot__cols {
    grid-template-columns: 1fr 1fr;
    gap: 24px 20px;
  }
  .founder {
    padding: 22px;
  }
  .founder__id {
    gap: 12px;
  }
  .founder__name {
    font-size: clamp(24px, 7.5vw, 30px);
  }
  .founder__contact {
    padding-top: 14px;
  }
  .founder__contact a {
    width: 100%;
    justify-content: space-between;
  }
  .page-cta {
    flex-direction: column;
  }
  .page-cta .btn {
    width: 100%;
  }
  .logo-cell {
    flex-basis: 140px;
    max-width: calc(50% - 1px);
    min-height: 110px;
    padding: 18px 14px;
  }
  .logo-cell img {
    max-height: 44px;
  }
  .hero__ticker {
    padding: 12px 0;
    font-size: 10px;
    letter-spacing: 0.2em;
  }
}

@media (max-width: 420px) {
  :root {
    --pad: 16px;
  }
  .hero__foot {
    font-size: 9.5px;
    letter-spacing: 0.16em;
    gap: 10px;
  }
  .hero__marquee-word {
    font-size: clamp(34px, 10vw, 64px);
    padding-right: clamp(22px, 3vw, 38px);
  }
  .hero__marquee-track {
    animation-duration: 28s;
  }
  .hero__title {
    font-size: clamp(34px, 11vw, 46px);
  }
  .hero--page .hero__title {
    font-size: clamp(30px, 9vw, 42px);
  }
  .lab-intro__statement {
    font-size: clamp(20px, 6.4vw, 26px);
  }
  .hero__cta {
    flex-direction: column;
    align-items: stretch;
  }
  .hero__cta .btn {
    width: 100%;
  }
  .section__title {
    font-size: clamp(26px, 8vw, 36px);
  }
  .logo-cell {
    flex-basis: 120px;
    max-width: calc(50% - 1px);
    min-height: 96px;
    padding: 14px 10px;
  }
  .logo-cell img {
    max-height: 38px;
  }
  .logo-cell__mark {
    font-size: 12.5px;
  }
  .foot__cols {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .foot__bottom {
    font-size: 10px;
  }
}

/* Page hero (slimmer variant for sub-pages) */
.hero--page {
  padding: clamp(48px, 7vw, 100px) 0 clamp(40px, 6vw, 72px);
}
.hero--page .hero__title {
  font-size: clamp(40px, 7vw, 88px);
  max-width: 18ch;
  margin-bottom: 28px;
}
.hero--page .hero__lede {
  margin-bottom: 0;
}
.hero--page .hero__meta {
  margin-bottom: clamp(28px, 4vw, 56px);
}

/* About page: lab intro (mission statement) */
.lab-intro {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 2.5vw, 32px);
  max-width: 960px;
  margin: 0 auto;
}

@media (min-width: 820px) {
  .lab-intro {
    grid-template-columns: minmax(120px, 0.4fr) minmax(0, 1.6fr);
    gap: clamp(32px, 4vw, 64px);
  }
}

.lab-intro__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-top: 0.35em;
}

.lab-intro__statement {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(24px, 2.8vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.012em;
  color: var(--ink);
  margin: 0;
  max-width: 30ch;
}

.lab-intro__statement em {
  font-style: italic;
  color: var(--accent-strong);
  font-weight: 300;
}

.lab-intro__detail {
  grid-column: 1 / -1;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.65;
  color: var(--ink-dim);
  margin: 0;
  max-width: 64ch;
  justify-self: start;
}

@media (min-width: 820px) {
  .lab-intro__detail {
    grid-column: 2 / -1;
  }
}

.programs--page,
.lab--page {
  padding-top: 0;
  border-top: 0;
}

.lab__grid--page {
  grid-template-columns: 1fr;
}
@media (min-width: 960px) {
  .lab__grid--page {
    grid-template-columns: 1fr;
    max-width: 760px;
  }
}

.page-cta {
  margin-top: clamp(48px, 6vw, 80px);
  padding-top: clamp(32px, 4vw, 48px);
  border-top: 1px solid var(--line-soft);
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

[aria-current="page"] {
  color: var(--ink);
}

/* Affiliations strip */
.affiliations {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
  margin-bottom: 1px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.35);
  mask-image: linear-gradient(
    90deg,
    transparent 0,
    black 8%,
    black 92%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent 0,
    black 8%,
    black 92%,
    transparent 100%
  );
}

.affiliations__row {
  list-style: none;
  margin: 0;
  padding: 0;
  display: inline-flex;
  align-items: center;
  gap: 36px;
  white-space: nowrap;
  animation: affiliations-scroll 80s linear infinite;
  will-change: transform;
}

.affiliations:hover .affiliations__row {
  animation-play-state: paused;
}

.affiliations__item {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  filter: grayscale(100%);
  opacity: 0.75;
  transition: color 0.3s ease, opacity 0.3s ease, filter 0.3s ease;
}

.affiliations__item:hover {
  color: var(--accent-strong);
  opacity: 1;
  filter: none;
}

.affiliations__dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--line-strong);
  list-style: none;
  flex: none;
}

@keyframes affiliations-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* Lab section */
.lab {
  padding: clamp(80px, 12vw, 160px) 0;
  border-top: 1px solid var(--line-soft);
}

.lab__grid {
  display: grid;
  gap: clamp(48px, 6vw, 80px);
  grid-template-columns: 1fr;
  align-items: start;
}

@media (min-width: 960px) {
  .lab__grid {
    grid-template-columns: 0.95fr 1.05fr;
  }
}

.lab__lede {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(20px, 1.8vw, 26px);
  line-height: 1.45;
  color: var(--ink);
  margin: 0;
  max-width: 42ch;
}

.founder {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: clamp(28px, 4vw, 56px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  max-width: 640px;
  margin: 0 auto;
  box-shadow:
    0 1px 0 rgba(13, 20, 17, 0.02),
    0 24px 48px -24px rgba(13, 20, 17, 0.08);
}

.founder__id {
  display: grid;
  gap: 16px;
  align-content: start;
}

.founder__role {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.founder__name {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
}

.founder__tags {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
}

.founder__tags li {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 6px 10px;
}

.founder__contact {
  list-style: none;
  padding: 16px 0 0;
  margin: 8px 0 0;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.founder__contact a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
  transition:
    color 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease;
}

.founder__contact a:hover {
  color: var(--accent-strong);
  border-color: var(--accent);
  background: rgba(45, 90, 66, 0.06);
}

.founder__contact-arrow {
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0;
  transition: transform 0.2s ease;
}

.founder__contact a:hover .founder__contact-arrow {
  transform: translate(2px, -2px);
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.reveal.in {
  opacity: 1;
  transform: none;
}

/* Research page — Products section (second programs block) */
.programs--product {
  padding-top: clamp(64px, 10vw, 120px);
  border-top: 1px solid var(--line-soft);
}

.programs__grid--single {
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .programs__grid--single {
    grid-template-columns: 1fr;
  }
}
@media (min-width: 1080px) {
  .programs__grid--single {
    grid-template-columns: 1fr;
  }
}

/* Featured product card (iGrid) */
.program--featured {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding: clamp(30px, 4vw, 52px) clamp(22px, 3.5vw, 44px);
}

.program--featured > header {
  grid-column: 1 / -1;
  padding-bottom: 20px;
}

.program--featured__body {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.program--featured h3 {
  margin: 0;
  font-size: clamp(26px, 6vw, 34px);
  line-height: 1.12;
}

.program--featured__body p {
  margin: 0;
  color: var(--ink-dim);
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.7;
  max-width: 62ch;
}

.program--featured__side {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
  padding-top: 4px;
  border-top: 1px solid var(--line-soft);
}

.program--featured__label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-top: 14px;
}

.program--featured .program__tags {
  margin: 0;
  padding-top: 0;
  gap: 6px 8px;
}

@media (min-width: 820px) {
  .program--featured {
    grid-template-columns: minmax(0, 1.5fr) minmax(220px, 0.8fr);
    gap: clamp(32px, 4vw, 64px);
    padding: clamp(44px, 5vw, 72px) clamp(36px, 4vw, 60px);
    align-items: start;
  }
  .program--featured h3 {
    font-size: clamp(30px, 3vw, 42px);
  }
  .program--featured__body p {
    font-size: 16px;
  }
  .program--featured__side {
    padding-top: 0;
    border-top: 0;
    padding-left: clamp(24px, 3vw, 40px);
    border-left: 1px solid var(--line-soft);
    align-self: stretch;
  }
  .program--featured__label {
    padding-top: 0;
  }
  .program--featured .program__tags {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* Research page — tighten section heads inside programs blocks on mobile */
@media (max-width: 560px) {
  .programs--page .section__head,
  .programs--product .section__head {
    margin-bottom: clamp(28px, 6vw, 44px);
  }
  .program--featured {
    padding: 26px 20px;
    gap: 18px;
  }
  .program--featured > header {
    padding-bottom: 16px;
  }
  .program--featured h3 {
    font-size: 24px;
  }
}