:root {
  --paper: #f4f2ed;
  --paper-deep: #e6e3dc;
  --ink: #141412;
  --muted: #68665f;
  --blue: #3a5478;
  --blue-dark: #2c425f;
  --acid: #d4c56a;
  --white: #fbfaf6;
  --line: rgba(20, 20, 18, 0.18);
  --radius: 4px;
  --display: "Unbounded", "Arial Black", sans-serif;
  --body: "Manrope", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  z-index: 20;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: 0.18;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.08'/%3E%3C/svg%3E");
}

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

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  background: var(--ink);
  color: var(--white);
  transform: translateY(-180%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  min-height: 92px;
  padding: 16px clamp(20px, 4vw, 64px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  line-height: 1;
}

.brand-mark {
  display: grid;
  width: 37px;
  height: 37px;
  place-items: center;
  border-radius: 50%;
  background: var(--blue);
  color: var(--acid);
  font: 600 18px/1 var(--display);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font: 600 clamp(14px, 1.35vw, 20px)/1.05 var(--display);
  letter-spacing: -0.05em;
}

.brand small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

nav {
  display: flex;
  gap: clamp(20px, 3vw, 48px);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

nav a {
  position: relative;
}

nav a::after {
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 2px;
  background: var(--blue);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 200ms ease;
}

nav a:hover::after,
nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.site-header:has(.topic-stack) {
  min-height: 124px;
}

.topic-stack {
  display: grid;
  grid-template-columns: minmax(7.2rem, auto) minmax(7.2rem, auto);
  gap: 8px;
  justify-self: end;
  align-items: start;
}

.topic-pill,
.issue-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  justify-self: end;
  padding: 8px 8px 8px 13px;
  border: 1px solid var(--ink);
  border-radius: 99px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.topic-pill span,
.issue-pill span {
  display: inline-grid;
  width: 24px;
  height: 24px;
  margin-left: 0;
  place-items: center;
  border-radius: 50%;
  background: var(--acid);
  font-size: 13px;
}

.topic-brain {
  grid-column: 1;
  grid-row: 1;
}

.topic-muscle {
  grid-column: 2;
  grid-row: 1;
}

.topic-pcos {
  grid-column: 1;
  grid-row: 2;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  min-height: calc(100svh - 92px);
  overflow: hidden;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(60px, 7vw, 110px) clamp(24px, 6vw, 94px);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: clamp(40px, 6vh, 70px);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.pulse-dot {
  position: relative;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--blue);
}

.pulse-dot::after {
  position: absolute;
  inset: -5px;
  border: 1px solid var(--blue);
  border-radius: 50%;
  content: "";
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.1;
    transform: scale(0.75);
  }
  50% {
    opacity: 1;
    transform: scale(1);
  }
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: var(--display);
  letter-spacing: -0.055em;
}

h1 {
  max-width: 710px;
  margin-bottom: 36px;
  font-size: clamp(58px, 7vw, 116px);
  font-weight: 600;
  line-height: 0.9;
  text-transform: uppercase;
}

h1 span {
  color: var(--blue);
}

.hero-lead {
  max-width: 660px;
  margin-bottom: 40px;
  color: #36352f;
  font-size: clamp(16px, 1.35vw, 20px);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 26px;
}

.hero-actions p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
  text-transform: uppercase;
}

.hero-actions strong {
  color: var(--ink);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  min-height: 58px;
  padding: 0 22px 0 26px;
  border-radius: 2px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: background 180ms ease, transform 180ms ease;
}

.button span {
  font-size: 20px;
}

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

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--blue-dark);
  transform: translateY(-2px);
}

.hero-visual {
  position: relative;
  min-height: 620px;
  margin: 0;
  overflow: hidden;
  background: #e5e0d3;
}

.hero-visual > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-visual::after {
  position: absolute;
  inset: 0;
  border-left: 1px solid rgba(20, 20, 18, 0.14);
  content: "";
  pointer-events: none;
}

.hero-visual figcaption {
  position: absolute;
  right: clamp(18px, 3vw, 46px);
  bottom: clamp(18px, 3vw, 46px);
  display: flex;
  gap: 13px;
  width: min(330px, calc(100% - 36px));
  padding: 18px;
  background: rgba(255, 254, 249, 0.94);
  backdrop-filter: blur(10px);
}

.hero-visual figcaption span {
  display: grid;
  flex: 0 0 36px;
  height: 36px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
}

.hero-visual figcaption p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.hero-visual figcaption strong {
  display: block;
  margin-bottom: 3px;
  color: var(--ink);
}

.ticker {
  overflow: hidden;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  background: var(--acid);
  white-space: nowrap;
}

.ticker div {
  display: flex;
  width: max-content;
  align-items: center;
  animation: ticker 34s linear infinite;
}

.ticker span {
  padding: 14px 28px;
  font: 600 11px/1 var(--display);
  letter-spacing: 0.06em;
}

.ticker i {
  color: var(--blue);
  font-size: 9px;
}

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

.section {
  padding: clamp(80px, 11vw, 170px) clamp(24px, 6vw, 94px);
}

.section-number {
  margin-bottom: 48px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.section-number::before {
  display: inline-block;
  width: 32px;
  height: 1px;
  margin-right: 12px;
  background: currentColor;
  vertical-align: middle;
  content: "";
}

.section-number.light {
  color: var(--white);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 5vw;
  align-items: end;
}

.kicker {
  margin-bottom: 20px;
  color: var(--blue);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.kicker.acid {
  color: var(--acid);
}

h2 {
  margin-bottom: 0;
  font-size: clamp(32px, 4.2vw, 58px);
  font-weight: 600;
  line-height: 1.08;
  overflow-wrap: anywhere;
  text-transform: uppercase;
}

h2 em {
  color: var(--blue);
  font-style: normal;
}

.section-intro {
  max-width: 620px;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: clamp(16px, 1.35vw, 20px);
  line-height: 1.75;
}

.mechanism-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: clamp(58px, 8vw, 110px);
  border: solid var(--ink);
  border-width: 1px 0 1px 1px;
}

.fact-card {
  min-height: 390px;
  padding: clamp(26px, 3vw, 48px);
  border-right: 1px solid var(--ink);
  background: var(--paper);
}

.fact-card-accent {
  background: var(--blue);
  color: white;
}

.fact-icon {
  display: grid;
  width: 48px;
  height: 48px;
  margin-bottom: 76px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font: 500 22px/1 var(--display);
}

.fact-label {
  margin-bottom: 12px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.fact-card h3 {
  max-width: 330px;
  margin-bottom: 18px;
  font: 600 clamp(20px, 2vw, 28px)/1.25 var(--display);
  letter-spacing: -0.04em;
}

.fact-card p:last-child {
  max-width: 360px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.fact-card-accent p:last-child {
  color: rgba(255, 255, 255, 0.7);
}

.blind-spot {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(50px, 9vw, 140px);
  padding: clamp(80px, 11vw, 160px) clamp(24px, 6vw, 94px);
  background: var(--ink);
  color: var(--white);
}

.blind-copy h2 {
  margin-bottom: 38px;
  font-size: clamp(44px, 5vw, 76px);
}

.blind-copy > p:last-child {
  max-width: 600px;
  color: rgba(255, 255, 255, 0.67);
  font-size: 17px;
}

.blind-copy strong {
  color: var(--white);
}

.comparison {
  align-self: end;
  padding-top: 70px;
}

.comparison-row {
  display: grid;
  grid-template-columns: minmax(170px, 1fr) minmax(100px, 0.7fr) 50px;
  gap: 28px;
  align-items: end;
  padding: 30px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.25);
}

.status {
  display: inline-block;
  margin-bottom: 28px;
  padding: 5px 8px;
  border-radius: 2px;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.status-ok {
  background: var(--acid);
  color: var(--ink);
}

.status-unknown {
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.comparison h3 {
  margin-bottom: 5px;
  font: 600 20px/1.2 var(--display);
  letter-spacing: -0.04em;
}

.comparison-row p {
  margin: 0;
  color: rgba(255, 255, 255, 0.55);
  font-size: 12px;
}

.comparison-row > strong {
  font: 500 15px/1 var(--display);
  text-transform: uppercase;
}

.meter {
  position: relative;
  height: 4px;
  margin-bottom: 8px;
  background: rgba(255, 255, 255, 0.18);
}

.meter span {
  display: block;
  width: var(--value);
  height: 100%;
  background: var(--acid);
}

.meter-dashed {
  height: 1px;
  background: repeating-linear-gradient(
    to right,
    rgba(255, 255, 255, 0.4) 0 7px,
    transparent 7px 13px
  );
}

.comparison-note {
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.25);
  color: rgba(255, 255, 255, 0.55);
  font-size: 12px;
}

.evidence {
  background: var(--white);
}

.evidence-intro {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 7vw;
  align-items: center;
}

.evidence .section-heading {
  display: block;
}

.evidence .section-intro {
  margin-top: 40px;
}

.research-image {
  position: relative;
  margin: 0;
}

.research-image::before {
  position: absolute;
  z-index: 1;
  top: -17px;
  left: -17px;
  width: 46px;
  height: 46px;
  border-top: 2px solid var(--blue);
  border-left: 2px solid var(--blue);
  content: "";
}

.research-image img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.03);
}

.research-image figcaption,
.memory-image figcaption {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
}

.study-list {
  margin-top: clamp(70px, 9vw, 130px);
  border-top: 1px solid var(--ink);
}

.study {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr) 90px;
  gap: clamp(20px, 4vw, 70px);
  align-items: start;
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}

.study-index {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--white);
  font: 500 13px/1 var(--display);
}

.study-meta {
  margin-bottom: 10px;
  color: var(--blue);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.study h3 {
  margin-bottom: 14px;
  font: 600 clamp(19px, 2vw, 28px)/1.3 var(--display);
  letter-spacing: -0.035em;
}

.study p:last-child {
  max-width: 820px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.study > a {
  justify-self: end;
  padding: 8px 0;
  border-bottom: 1px solid var(--ink);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.study > a:hover,
.study > a:focus-visible {
  color: var(--blue);
  border-color: var(--blue);
}

.memory-section {
  display: grid;
  grid-template-columns: minmax(320px, 0.86fr) minmax(0, 1.14fr);
  gap: clamp(55px, 10vw, 160px);
  padding: clamp(80px, 11vw, 170px) clamp(24px, 9vw, 140px);
  background: var(--paper-deep);
}

.memory-image {
  max-width: 560px;
  margin: 0;
}

.memory-image img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.04);
}

.memory-copy {
  align-self: center;
}

.memory-copy h2 {
  max-width: 850px;
  margin-bottom: 36px;
  font-size: clamp(38px, 4.5vw, 68px);
}

.memory-copy > p:not(.kicker, .small-note) {
  max-width: 700px;
  color: var(--muted);
  font-size: 17px;
}

blockquote {
  position: relative;
  max-width: 760px;
  margin: 48px 0 28px;
  padding: 30px 0 30px 62px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  font: 500 clamp(20px, 2.4vw, 32px)/1.4 var(--display);
  letter-spacing: -0.04em;
}

blockquote span {
  position: absolute;
  top: 23px;
  left: 4px;
  color: var(--blue);
  font-size: 64px;
  line-height: 1;
}

.small-note {
  max-width: 700px;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.takeaways .section-heading {
  display: block;
}

.takeaway-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 70px;
}

.takeaway {
  min-height: 300px;
  padding: clamp(28px, 3vw, 44px);
  border: 1px solid var(--ink);
}

.takeaway span {
  display: block;
  margin-bottom: 80px;
  color: var(--blue);
  font: 600 12px/1 var(--display);
}

.takeaway h3 {
  margin-bottom: 14px;
  font: 600 clamp(19px, 2vw, 26px)/1.25 var(--display);
  letter-spacing: -0.04em;
}

.takeaway p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.medical-note {
  display: flex;
  gap: 22px;
  align-items: center;
  margin-top: 16px;
  padding: 28px 34px;
  background: var(--acid);
}

.medical-note > div {
  display: grid;
  flex: 0 0 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
  font: 600 17px/1 var(--display);
}

.medical-note p {
  margin: 0;
  font-size: 13px;
}

.medical-note strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--display);
}

.sources {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 8vw;
  padding: clamp(75px, 10vw, 140px) clamp(24px, 6vw, 94px);
  background: var(--blue);
  color: var(--white);
}

.sources h2 {
  font-size: clamp(40px, 4.8vw, 72px);
}

.sources ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: sources;
}

.sources li {
  counter-increment: sources;
}

.sources a {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.79);
  font-size: 13px;
  transition: color 180ms ease, padding-left 180ms ease;
}

.sources li:last-child a {
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.sources a::before {
  color: var(--acid);
  content: "0" counter(sources);
  font: 500 10px/1.8 var(--display);
}

.sources a:hover,
.sources a:focus-visible {
  padding-left: 8px;
  color: var(--white);
}

footer {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 30px;
  align-items: start;
  padding: 60px clamp(24px, 6vw, 94px) 28px;
  background: var(--ink);
  color: var(--white);
}

.brand-footer .brand-mark {
  background: var(--acid);
  color: var(--ink);
}

.brand-footer small {
  color: rgba(255, 255, 255, 0.5);
}

footer > p {
  margin: 0;
  color: rgba(255, 255, 255, 0.6);
  font: 500 14px/1.6 var(--display);
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.back-to-top {
  padding-bottom: 3px;
  border-bottom: 1px solid var(--white);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

footer > small {
  grid-column: 1 / -1;
  margin-top: 46px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.4);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 {
  transition-delay: 120ms;
}

.delay-2 {
  transition-delay: 240ms;
}

@media (max-width: 1050px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    min-height: 720px;
  }

  .hero-visual {
    min-height: min(78vw, 740px);
  }

  .section-heading {
    grid-template-columns: 1fr;
  }

  .section-intro {
    margin-top: 22px;
  }

  .blind-spot,
  .evidence-intro {
    grid-template-columns: 1fr;
  }

  .comparison {
    padding-top: 0;
  }

  .research-image {
    max-width: 760px;
  }

  .memory-section {
    gap: 60px;
  }

  .takeaway-grid {
    grid-template-columns: 1fr;
  }

  .takeaway {
    min-height: 220px;
  }

  .takeaway span {
    margin-bottom: 48px;
  }
}

@media (max-width: 760px) {
  .site-header {
    min-height: 76px;
  }

  .brand small {
    display: none;
  }

  .site-header:has(.topic-stack) {
    min-height: 108px;
  }

  .topic-stack {
    gap: 6px;
  }

  .topic-pill,
  .issue-pill {
    border: 0;
    padding: 0;
  }

  .issue-pill > span {
    margin-left: 4px;
  }

  .hero {
    min-height: auto;
  }

  .hero-copy {
    min-height: 0;
    padding-top: 56px;
    padding-bottom: 66px;
  }

  .eyebrow {
    margin-bottom: 40px;
  }

  h1 {
    font-size: clamp(50px, 16vw, 76px);
  }

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

  .hero-visual {
    min-height: 470px;
  }

  .hero-visual > img {
    object-position: 62% center;
  }

  .section-number {
    margin-bottom: 34px;
  }

  h2 {
    font-size: clamp(37px, 11vw, 56px);
  }

  .mechanism-grid {
    grid-template-columns: 1fr;
    border-width: 1px 1px 0;
  }

  .fact-card {
    min-height: 330px;
    border-right: 0;
    border-bottom: 1px solid var(--ink);
  }

  .fact-icon {
    margin-bottom: 50px;
  }

  .comparison-row {
    grid-template-columns: 1fr 40px;
  }

  .comparison-row .meter {
    display: none;
  }

  .study {
    grid-template-columns: 45px minmax(0, 1fr);
  }

  .study > a {
    grid-column: 2;
    justify-self: start;
  }

  .memory-section {
    grid-template-columns: 1fr;
    padding-right: 24px;
    padding-left: 24px;
  }

  .memory-image {
    max-width: 480px;
  }

  blockquote {
    padding-left: 48px;
  }

  .sources {
    grid-template-columns: 1fr;
  }

  footer {
    grid-template-columns: 1fr auto;
  }

  footer > p {
    display: none;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}