@import url("https://fonts.googleapis.com/css2?family=Afacad+Flux:wght@400;500;600;700&family=Prata&display=swap");

:root {
  --color-paper: #ffffff;
  --color-white: #ffffff;
  --color-ink: #17191b;
  --color-muted: #62686f;
  --color-line: #dfe2e5;
  --color-teal: #c4aa60;
  --color-teal-deep: #a98f46;
  --color-green: #6f8175;
  --color-stone: #f5f6f7;
  --color-sun: #d6c39f;
  --color-graphite: #2f3439;
  --font-serif: Prata, "DM Serif Display", Georgia, serif;
  --font-sans: "Afacad Flux", "Avenir Next", "Gotham", "Helvetica Neue", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --space-1: clamp(0.5rem, 0.4rem + 0.4vw, 0.75rem);
  --space-2: clamp(0.85rem, 0.7rem + 0.6vw, 1.25rem);
  --space-3: clamp(1.25rem, 1rem + 1vw, 2rem);
  --space-4: clamp(2rem, 1.4rem + 2vw, 3.5rem);
  --space-5: clamp(3.25rem, 2.2rem + 4vw, 6rem);
  --space-6: clamp(5rem, 3rem + 7vw, 10rem);
  --measure: 72rem;
  --radius: 8px;
  --shadow-soft: 0 28px 80px rgba(17, 25, 33, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  letter-spacing: 0;
}

body.nav-open {
  overflow: hidden;
}

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

a {
  color: inherit;
}

p,
li,
.ed-hero-note,
.ed-thesis > p,
.ed-feature-copy p,
.ed-research > p,
.footer-brand p,
.footer-note {
  font-weight: 400;
}

:focus-visible {
  outline: 3px solid rgba(169, 143, 70, 0.55);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 20;
  transform: translateY(-150%);
  background: var(--color-ink);
  color: var(--color-white);
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(23, 25, 27, 0.94);
  backdrop-filter: blur(18px);
}

.header-inner,
.section-inner,
.footer-inner {
  width: min(calc(100% - 2rem), var(--measure));
  margin-inline: auto;
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: clamp(0.78rem, 1.1vw, 0.92rem);
  font-weight: 400;
  letter-spacing: 0.22em;
  line-height: 1.1;
  text-transform: uppercase;
}

.brand-wordmark {
  display: inline-flex;
  gap: 0.18em;
  color: var(--color-ink);
  white-space: nowrap;
}

.brand-vitamin {
  color: #b8bdc1;
}

.brand-delightful {
  color: var(--color-teal-deep);
}

.brand-light {
  display: inline;
  overflow: hidden;
  color: var(--color-white);
  font-size: 1em;
  line-height: inherit;
  text-shadow: none;
}

.brand:hover .brand-light,
.brand:focus-visible .brand-light {
  animation: brand-light-glow 2600ms ease-in-out forwards;
}

@keyframes brand-light-glow {
  0% {
    color: var(--color-white);
    text-shadow: none;
  }

  45% {
    color: #fff7df;
    text-shadow: 0 0 0.32em rgba(198, 170, 96, 0.18);
  }

  to {
    color: var(--color-white);
    text-shadow: none;
  }
}

.site-header .brand-wordmark {
  color: inherit;
}

.nav-toggle {
  display: none;
  width: 2.65rem;
  height: 2.65rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  background: transparent;
  color: var(--color-white);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 1.05rem;
  height: 1px;
  margin: 0.28rem auto;
  background: currentColor;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--color-white);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.78rem 1.1rem;
  border: 1px solid var(--color-graphite);
  border-radius: 999px;
  background: var(--color-graphite);
  color: var(--color-white);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  line-height: 1.1;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
  background: var(--color-ink);
}

.button.secondary {
  background: transparent;
  color: var(--color-graphite);
}

.button.secondary:hover {
  background: rgba(169, 143, 70, 0.1);
}

.hero {
  min-height: calc(86svh - 76px);
  display: grid;
  align-items: end;
  position: relative;
  color: var(--color-white);
  overflow: hidden;
}

.hero picture,
.hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero img {
  object-fit: cover;
  filter: saturate(0.76) contrast(0.96) brightness(1.02);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 13, 15, 0.72), rgba(10, 13, 15, 0.42) 52%, rgba(10, 13, 15, 0.12)), linear-gradient(180deg, rgba(10, 13, 15, 0.08), rgba(10, 13, 15, 0.42));
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 2rem), 74rem);
  margin: 0 auto;
  padding: var(--space-4) 0 var(--space-3);
}

.kicker,
.eyebrow {
  margin: 0 0 1rem;
  color: var(--color-teal-deep);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero .kicker {
  color: rgba(255, 254, 251, 0.82);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.06;
}

h1 {
  max-width: 16ch;
  font-size: clamp(3.2rem, 6.6vw, 6.45rem);
}

h2 {
  max-width: 12ch;
  font-size: clamp(2.8rem, 5.4vw, 5.3rem);
}

h3 {
  font-size: clamp(1.65rem, 2.4vw, 2.45rem);
}

p {
  margin: 0;
}

.lede {
  max-width: 43rem;
  margin-top: var(--space-3);
  color: rgba(255, 254, 251, 0.9);
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: var(--space-3);
}

.hero .button.secondary {
  border-color: rgba(255, 254, 251, 0.72);
  color: var(--color-white);
}

.section {
  padding-block: var(--space-6);
}

.section.contrast {
  background: var(--color-stone);
}

.journey-section {
  background: linear-gradient(180deg, #ffffff, #fafafa);
}

.section-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(18rem, 0.72fr);
  gap: var(--space-4);
  align-items: end;
  margin-bottom: var(--space-4);
}

.section-intro p {
  color: var(--color-muted);
  font-size: 1.08rem;
}

.system-grid,
.symptom-grid,
.journey-grid,
.article-grid {
  display: grid;
  gap: 1rem;
}

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

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

.journey-visual {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.6rem);
  padding-top: var(--space-4);
}

.journey-line {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(var(--space-4) + 1.15rem);
  height: 1px;
  background: linear-gradient(90deg, transparent, #bfc5c9 10%, #bfc5c9 90%, transparent);
}

.journey-visual article {
  position: relative;
  padding-top: 3.2rem;
}

.journey-visual article::before {
  content: "";
  position: absolute;
  top: 0.82rem;
  left: 0;
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  background: var(--color-graphite);
  box-shadow: 0 0 0 0.45rem #ffffff;
}

.journey-visual span,
.system-list span {
  display: block;
  margin-bottom: 0.8rem;
  color: #8a9299;
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.14em;
}

.journey-visual h3 {
  font-family: var(--font-sans);
  font-size: clamp(1.08rem, 1.4vw, 1.28rem);
  font-weight: 500;
  line-height: 1.2;
}

.journey-visual p {
  margin-top: 0.8rem;
  color: var(--color-muted);
  font-size: 0.93rem;
  line-height: 1.55;
}

.symptom-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.symptom-layout {
  display: grid;
  grid-template-columns: minmax(18rem, 0.4fr) minmax(0, 1fr);
  gap: var(--space-4);
  align-items: stretch;
}

.symptom-image {
  width: 100%;
  height: 100%;
  min-height: 24rem;
  object-fit: cover;
  border-radius: 0;
  filter: saturate(0.72) contrast(0.98);
}

.category-card,
.image-card,
.article-card {
  background: var(--color-white);
  border: 1px solid rgba(223, 226, 229, 0.85);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.category-card {
  min-height: 18rem;
  padding: clamp(1.15rem, 2.4vw, 2rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.category-card p,
.image-card p,
.article-card p {
  color: var(--color-muted);
}

.card-link,
.text-link {
  color: var(--color-graphite);
  font-weight: 500;
  text-decoration: none;
}

.card-link::after,
.text-link::after {
  content: " \2192";
}

.image-card img {
  width: 100%;
  height: 18rem;
  object-fit: cover;
}

.image-card-content {
  padding: clamp(1.15rem, 2.4vw, 2rem);
}

.image-card-content p {
  margin-top: 0.85rem;
}

.image-card-content .card-link {
  display: inline-block;
  margin-top: 1.1rem;
}

.symptom-card {
  min-height: 8.8rem;
  padding: 1.1rem;
  border: 0;
  border-top: 1px solid var(--color-line);
  border-radius: 0;
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.25;
  text-decoration: none;
}

.symptom-card i {
  color: var(--color-teal-deep);
  font-size: 1.35rem;
}

.symptom-card:hover {
  background: #fafafa;
}

.systems-section {
  overflow: hidden;
}

.system-editorial {
  display: grid;
  grid-template-columns: minmax(20rem, 0.58fr) minmax(0, 1fr);
  gap: var(--space-5);
  align-items: stretch;
}

.system-editorial > img {
  width: 100%;
  height: 100%;
  min-height: 42rem;
  object-fit: cover;
  filter: saturate(0.66) contrast(1.02);
}

.system-list {
  display: grid;
  align-content: center;
}

.system-list a {
  display: grid;
  grid-template-columns: 4rem minmax(0, 0.8fr) minmax(12rem, 1fr);
  gap: 1rem;
  align-items: baseline;
  padding: 1.45rem 0;
  border-top: 1px solid var(--color-line);
  text-decoration: none;
}

.system-list a:last-child {
  border-bottom: 1px solid var(--color-line);
}

.system-list strong {
  font-size: clamp(1.15rem, 1.6vw, 1.55rem);
  line-height: 1.15;
}

.system-list em {
  color: var(--color-muted);
  font-style: normal;
}

.feature-block {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1fr);
  gap: var(--space-4);
  align-items: center;
}

.feature-block img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 0;
  filter: saturate(0.78) contrast(0.98);
}

.feature-copy p {
  max-width: 39rem;
  margin-top: var(--space-2);
  color: var(--color-muted);
  font-size: 1.1rem;
}

.evidence-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: var(--space-3);
}

.evidence-badge {
  display: inline-flex;
  align-items: center;
  min-height: 2.15rem;
  padding: 0.45rem 0.75rem;
  border: 1px solid #ccd2d6;
  border-radius: 999px;
  background: #ffffff;
  color: var(--color-graphite);
  font-size: 0.85rem;
  font-weight: 500;
}

.research-callout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(18rem, 0.62fr);
  gap: var(--space-4);
  align-items: stretch;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.research-callout p {
  margin-top: var(--space-2);
  color: var(--color-muted);
  font-size: 1.08rem;
}

.research-callout img {
  width: 100%;
  height: 100%;
  min-height: 22rem;
  object-fit: cover;
  border-radius: 0;
  filter: saturate(0.66) contrast(1.04);
}

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

.evidence-ladder {
  display: grid;
  margin-top: var(--space-4);
  border-top: 1px solid var(--color-line);
}

.evidence-ladder span {
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-graphite);
  font-weight: 500;
}

.evidence-ladder span::before {
  content: "";
  display: inline-block;
  width: 0.55rem;
  height: 0.55rem;
  margin-right: 0.8rem;
  border-radius: 50%;
  background: var(--color-teal-deep);
}

.physician-callout {
  display: grid;
  grid-template-columns: minmax(12rem, 0.35fr) minmax(0, 0.42fr) minmax(0, 0.7fr) auto;
  gap: var(--space-3);
  align-items: baseline;
  margin-top: var(--space-5);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-line);
}

.physician-callout h3 {
  font-family: var(--font-sans);
  font-size: clamp(1.3rem, 2vw, 2rem);
  font-weight: 500;
  line-height: 1.1;
}

.physician-callout p {
  color: var(--color-muted);
}

.breadcrumb {
  margin-bottom: var(--space-3);
  color: var(--color-muted);
  font-size: 0.9rem;
}

.breadcrumb a {
  color: var(--color-teal-deep);
  text-decoration: none;
}

.page-hero {
  padding-block: var(--space-5);
}

.page-hero p {
  max-width: 45rem;
  margin-top: var(--space-2);
  color: var(--color-muted);
  font-size: 1.12rem;
}

.article-card {
  padding: 1.35rem;
}

.article-card h3 {
  font-size: 1.9rem;
}

.subpage {
  padding-block: 0 var(--space-6);
  background: #ffffff;
}

.subpage .page-hero {
  width: min(calc(100% - 2rem), 78rem);
  padding: var(--space-5) 0 var(--space-4);
  border-bottom: 1px solid var(--color-line);
}

.subpage .page-hero h1 {
  max-width: 12ch;
  font-size: clamp(3.4rem, 6.6vw, 6.9rem);
  line-height: 1.07;
}

.subpage .page-hero p:not(.eyebrow) {
  max-width: 44rem;
  font-size: clamp(1.02rem, 1.35vw, 1.2rem);
  line-height: 1.64;
}

.subpage .feature-block,
.subpage .system-grid,
.subpage .symptom-grid,
.subpage .article-grid,
.subpage .journey-grid {
  width: min(calc(100% - 2rem), 78rem);
  margin-top: var(--space-4);
}

.subpage .feature-block {
  padding-top: var(--space-2);
}

.subpage .feature-copy {
  padding: var(--space-4);
  background: #ffffff;
  border-top: 1px solid var(--color-line);
}

.subpage .category-card,
.subpage .image-card,
.subpage .article-card {
  border-radius: 0;
  box-shadow: none;
}

.subpage .article-card,
.subpage .category-card {
  min-height: 18rem;
  border: 0;
  border-top: 1px solid var(--color-line);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.subpage .image-card {
  border: 0;
  border-top: 1px solid var(--color-line);
}

.subpage .image-card img {
  height: 20rem;
  filter: saturate(0.74) contrast(1.02);
}

.subpage .symptom-card {
  min-height: 9.5rem;
  background: #ffffff;
}

.subpage .symptom-card:hover,
.subpage .symptom-card:focus-visible {
  background: #fbfaf7;
}

.coming-soon-page {
  min-height: calc(100svh - 76px);
  display: grid;
  align-items: center;
  padding-block: var(--space-6);
}

.coming-soon {
  display: grid;
  justify-items: start;
  max-width: 62rem;
}

.coming-soon .breadcrumb {
  margin-bottom: var(--space-4);
}

.coming-soon h1 {
  max-width: 12ch;
  font-size: clamp(3.4rem, 6.6vw, 6.9rem);
  line-height: 1.07;
}

.coming-soon > p:not(.eyebrow) {
  max-width: 42rem;
  margin-top: var(--space-3);
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.45vw, 1.24rem);
  line-height: 1.64;
}

.coming-soon .text-link {
  margin-top: var(--space-3);
}

.site-footer {
  padding-block: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: #17191b;
  color: #ffffff;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) repeat(3, minmax(8rem, 0.45fr));
  gap: var(--space-4);
}

.footer-brand p {
  max-width: 32rem;
  margin-top: 1rem;
  color: rgba(255, 255, 255, 0.68);
}

.footer-group h2 {
  margin-bottom: 0.8rem;
  color: rgba(255, 255, 255, 0.92);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.footer-group a {
  display: block;
  margin-top: 0.55rem;
  color: rgba(255, 255, 255, 0.66);
  text-decoration: none;
}

.footer-note {
  width: min(calc(100% - 2rem), var(--measure));
  margin: var(--space-4) auto 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.88rem;
}

.editorial-home {
  background: #ffffff;
  overflow: hidden;
}

.editorial-home h1,
.editorial-home h2 {
  letter-spacing: 0;
}

.ed-hero {
  min-height: calc(100svh - 76px);
  position: relative;
  display: grid;
  grid-template-columns: minmax(1rem, 1fr) minmax(0, 35rem) minmax(0, 43rem) minmax(1rem, 1fr);
  grid-template-rows: 1fr auto auto;
  align-items: end;
  color: #ffffff;
  background: #101315;
  overflow: hidden;
}

.ed-hero img {
  position: absolute;
  inset: 0 0 -1px;
  width: 100%;
  height: calc(100% + 1px);
  object-fit: cover;
  object-position: 38% center;
  filter: saturate(0.82) contrast(1.02) brightness(1.02);
  opacity: 1;
  transform: scale(1);
}

.ed-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10, 12, 14, 0.68), rgba(10, 12, 14, 0.28) 48%, rgba(10, 12, 14, 0.02)),
    linear-gradient(180deg, rgba(10, 12, 14, 0.02), rgba(10, 12, 14, 0.46));
}

.ed-hero-copy,
.ed-hero-note {
  position: relative;
  z-index: 1;
}

.ed-hero-copy {
  grid-column: 2 / 4;
  max-width: 58rem;
  padding: var(--space-4) 0 var(--space-2);
}

.ed-hero h1 {
  max-width: 10ch;
  font-size: clamp(3.7rem, 6.35vw, 6.95rem);
  line-height: 1.08;
}

.ed-hero h1 span {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.ed-hero h1 span:nth-child(2) {
  text-align: center;
}

.ed-hero-note {
  grid-column: 2;
  max-width: 35rem;
  margin-bottom: var(--space-4);
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  opacity: 1;
  transform: translateY(0);
}

body.motion-ready .ed-hero img {
  opacity: 0;
  transform: scale(1.015);
}

body.motion-ready .ed-hero h1 span {
  opacity: 0;
  transform: translateY(0.18em);
}

body.motion-ready .ed-hero-note {
  opacity: 0;
  transform: translateY(0.7rem);
}

body.motion-ready .ed-hero img {
  animation: hero-image-in 1000ms ease forwards, image-breathe 14s ease-in-out 1200ms infinite alternate;
}

body.motion-ready .ed-hero h1 span {
  animation: hero-line-in 780ms cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

body.motion-ready .ed-hero h1 span:nth-child(2) {
  animation-delay: 170ms;
}

body.motion-ready .ed-hero h1 span:nth-child(3) {
  animation-delay: 320ms;
}

body.motion-ready .ed-hero-note {
  animation: soft-rise-in 820ms ease 620ms forwards;
}

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

@keyframes hero-line-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes soft-rise-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes image-breathe {
  to {
    transform: scale(1.03);
  }
}

.reveal-section {
  --reveal-delay: 0ms;
}

body.motion-ready .reveal-section:not(.ed-hero) > * {
  opacity: 0;
  transform: translateY(0.9rem);
  transition: opacity 720ms ease, transform 720ms ease, clip-path 900ms ease;
}

body.motion-ready .reveal-section.is-visible:not(.ed-hero) > * {
  opacity: 1;
  transform: translateY(0);
}

body.motion-ready .reveal-section.is-visible:not(.ed-hero) > *:nth-child(2) {
  transition-delay: 120ms;
}

body.motion-ready .reveal-section.is-visible:not(.ed-hero) > *:nth-child(3) {
  transition-delay: 220ms;
}

body.motion-ready .image-reveal img {
  clip-path: inset(0 0 22% 0);
}

body.motion-ready .image-reveal.is-visible img {
  clip-path: inset(0);
  animation: image-breathe 16s ease-in-out 900ms infinite alternate;
}

.ed-thesis {
  width: min(calc(100% - 2rem), 78rem);
  margin: 0 auto;
  min-height: 58svh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.68fr);
  gap: var(--space-4);
  align-items: center;
  padding-block: calc(var(--space-5) + 1.75rem);
}

.ed-thesis h2 {
  max-width: 11.5ch;
  font-size: clamp(3.25rem, 5.8vw, 6.35rem);
  line-height: 1.08;
}

.ed-thesis > p {
  align-self: end;
  max-width: 32rem;
  padding-bottom: var(--space-4);
  color: var(--color-muted);
  font-size: clamp(1.02rem, 1.35vw, 1.2rem);
  line-height: 1.62;
}

.ed-image-break {
  position: relative;
  min-height: 86svh;
  display: grid;
  align-items: center;
  color: #ffffff;
  background: #101315;
  margin-block: var(--space-6);
  padding-block: var(--space-6);
}

.ed-image-break img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.7) contrast(1.05) brightness(0.84);
}

.ed-image-break::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 12, 14, 0.02), rgba(10, 12, 14, 0.72));
}

.ed-image-break-copy {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 2rem), 68rem);
  margin: 0 auto;
}

.ed-image-break-copy h2 {
  max-width: 10ch;
  font-family: var(--font-serif);
  font-size: clamp(2.6rem, 5vw, 5rem);
  line-height: 1.06;
}

.ed-image-break-copy p {
  max-width: 38rem;
  margin-top: var(--space-3);
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  line-height: 1.65;
}

.ed-pathway {
  width: min(calc(100% - 2rem), 78rem);
  margin: 0 auto;
  padding: calc(var(--space-5) + 1rem) 0 calc(var(--space-5) + 2.25rem);
}

.ed-pathway-head {
  max-width: 50rem;
  margin-inline: auto;
  margin-bottom: var(--space-4);
  text-align: center;
}

.ed-pathway h2 {
  max-width: none;
  font-size: clamp(2.9rem, 4.8vw, 4.8rem);
  line-height: 1.05;
}

.ed-pathway-head p:not(.eyebrow) {
  max-width: 42rem;
  margin: var(--space-2) auto 0;
  color: var(--color-muted);
  font-size: clamp(1rem, 1.3vw, 1.16rem);
  line-height: 1.62;
}

.pathway-map {
  --pathway-progress: 0px;
  --path-y: 1.35rem;
  position: relative;
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 0;
  overflow: visible;
  padding: 0 0 2.4rem;
}

.pathway-map::before,
.pathway-map::after {
  content: "";
  position: absolute;
  top: var(--path-y);
  left: 1rem;
  width: calc(100% - 1.7rem);
  min-width: 0;
  height: 1px;
  background: #aeb5bb;
}

.pathway-map::after {
  width: var(--pathway-progress);
  min-width: 0;
  max-width: calc(100% - 1.7rem);
  background: var(--color-teal-deep);
  transition: width 1200ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.pathway-map > span[aria-hidden="true"] {
  position: absolute;
  top: calc(var(--path-y) - 0.42rem);
  right: -0.05rem;
  width: 0.82rem;
  height: 0.82rem;
  border-top: 1px solid var(--color-teal-deep);
  border-right: 1px solid var(--color-teal-deep);
  transform: rotate(45deg);
  pointer-events: none;
}

.pathway-map a {
  position: relative;
  min-height: 4.4rem;
  padding: 2.35rem 0.35rem 0;
  color: var(--color-graphite);
  font-size: clamp(0.61rem, 0.72vw, 0.74rem);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  text-align: center;
  opacity: 0.46;
  transition: color 220ms ease, opacity 380ms ease, transform 220ms ease;
}

.pathway-map a::before {
  content: "";
  position: absolute;
  top: calc(var(--path-y) - 0.425rem);
  left: 50%;
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 50%;
  background: var(--color-graphite);
  box-shadow: 0 0 0 0 rgba(169, 143, 70, 0);
  transform: translateX(-50%);
  transition: background 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}

.pathway-map a:nth-child(even) {
  padding-top: 2.35rem;
}

.pathway-map a.is-lit,
.pathway-map a:hover,
.pathway-map a:focus-visible {
  color: var(--color-ink);
  opacity: 1;
}

.pathway-map a:hover,
.pathway-map a:focus-visible {
  transform: translateY(-0.12rem);
}

.pathway-map a.is-lit::before,
.pathway-map a:hover::before,
.pathway-map a:focus-visible::before {
  background: var(--color-teal-deep);
  box-shadow: 0 0 0 0.38rem rgba(169, 143, 70, 0.12);
  transform: translateX(-50%) scale(1.08);
}

.pathway-map a.is-dim {
  opacity: 0.28;
}

.pathway-tooltip {
  position: absolute;
  z-index: 4;
  width: min(17rem, calc(100vw - 2rem));
  padding: 0.75rem 0.85rem;
  border: 1px solid rgba(169, 143, 70, 0.22);
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 14px 36px rgba(17, 25, 33, 0.1);
  color: var(--color-muted);
  font-size: 0.88rem;
  line-height: 1.4;
  opacity: 0;
  transform: translateY(0.2rem);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.signal-preview {
  position: fixed;
  z-index: 30;
  width: min(18rem, calc(100vw - 2rem));
  padding: 0.9rem 1rem;
  border: 1px solid rgba(169, 143, 70, 0.22);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 18px 50px rgba(17, 25, 33, 0.12);
  color: var(--color-muted);
  font-size: 0.92rem;
  line-height: 1.45;
  opacity: 0;
  transform: translateY(0.35rem);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.pathway-tooltip.is-visible,
.signal-preview.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.ed-quote {
  min-height: 72svh;
  position: relative;
  display: grid;
  grid-template-columns: minmax(1rem, 1fr) minmax(0, 42rem) minmax(1rem, 0.28fr);
  align-items: center;
  padding-block: var(--space-6);
  padding-inline: 0;
  overflow: hidden;
  background: #f5f6f7;
}

.ed-quote::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(245, 246, 247, 0) 0 46%, rgba(245, 246, 247, 0.24) 70%, rgba(245, 246, 247, 0.62));
  pointer-events: none;
}

.ed-quote > img {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center left;
  filter: saturate(0.74) contrast(1.02);
}

.ed-quote-copy {
  position: relative;
  z-index: 1;
  grid-column: 2;
  justify-self: end;
  width: min(100%, 42rem);
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
}

.ed-quote h2 {
  max-width: 12ch;
  font-size: clamp(3rem, 5.2vw, 5.4rem);
  line-height: 1.05;
}

.ed-quote-copy > p:not(.eyebrow) {
  max-width: 42rem;
  margin-top: var(--space-2);
  color: var(--color-muted);
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  line-height: 1.62;
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr));
  gap: 0.6rem;
  max-width: 44rem;
  margin-top: var(--space-3);
}

.signal-strip a {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.55rem;
  min-height: 2.75rem;
  padding: 0.7rem 0.95rem;
  border: 1px solid #d7dce0;
  border-radius: 999px;
  background: #ffffff;
  color: var(--color-graphite);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.signal-strip i {
  color: var(--color-teal-deep);
}

.signal-strip a:hover,
.signal-strip a:focus-visible {
  border-color: rgba(169, 143, 70, 0.4);
  background: #fbfaf7;
  transform: translateY(-0.12rem);
}

.signal-preview strong {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--color-ink);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.signal-preview ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0;
  margin: 0.55rem 0 0;
  list-style: none;
}

.signal-preview li {
  padding: 0.22rem 0.48rem;
  border: 1px solid var(--color-line);
  color: var(--color-graphite);
  font-size: 0.8rem;
}

.ed-systems {
  width: min(calc(100% - 2rem), 82rem);
  margin: 0 auto;
  padding: var(--space-5) 0;
  display: grid;
  grid-template-columns: minmax(18rem, 0.72fr) minmax(0, 1fr);
  gap: var(--space-5);
  align-items: start;
}

.ed-systems img {
  width: 100%;
  height: min(72svh, 46rem);
  min-height: 34rem;
  object-fit: cover;
  object-position: center top;
  filter: saturate(0.82) contrast(1.02);
}

.ed-systems h2 {
  max-width: 13ch;
  font-size: clamp(2.3rem, 4vw, 4rem);
  line-height: 1.06;
}

.ed-systems-copy > p:not(.eyebrow) {
  max-width: 40rem;
  margin-top: var(--space-2);
  color: var(--color-muted);
  font-size: clamp(1rem, 1.3vw, 1.14rem);
  line-height: 1.62;
}

.ed-systems ol {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0 0;
  counter-reset: systems;
}

.ed-systems li {
  counter-increment: systems;
  border-top: 1px solid var(--color-line);
}

.ed-systems li:last-child {
  border-bottom: 1px solid var(--color-line);
}

.ed-systems li a {
  display: grid;
  grid-template-columns: 3.5rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.05rem 0;
  color: var(--color-graphite);
  font-size: 0.84rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  transition: opacity 220ms ease, padding 220ms ease, color 220ms ease;
}

.ed-systems li a::before {
  content: counter(systems, decimal-leading-zero);
  color: #9aa2a9;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
}

.ed-systems li em {
  grid-column: 2;
  max-height: 0;
  overflow: hidden;
  color: var(--color-muted);
  font-size: 0.92rem;
  font-style: normal;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.45;
  text-transform: none;
  opacity: 0;
  transition: max-height 260ms ease, opacity 220ms ease;
}

.ed-systems:has(li a:hover) li a,
.ed-systems:has(li a:focus-visible) li a {
  opacity: 0.4;
}

.ed-systems li a:hover,
.ed-systems li a:focus-visible {
  opacity: 1 !important;
  padding-left: 0.4rem;
  color: var(--color-ink);
}

.ed-systems li a:hover em,
.ed-systems li a:focus-visible em {
  max-height: 4rem;
  opacity: 1;
}

.ed-feature {
  min-height: 72svh;
  display: grid;
  grid-template-columns: minmax(1rem, 0.45fr) minmax(19rem, 0.65fr) minmax(0, 42rem) minmax(1rem, 1fr);
  gap: var(--space-4);
  align-items: center;
  padding-block: var(--space-6);
  background:
    radial-gradient(circle at 73% 16%, rgba(229, 205, 139, 0.42), rgba(229, 205, 139, 0) 22%),
    linear-gradient(90deg, #ffffff 0 44%, rgba(255, 255, 255, 0.2) 44%),
    url("/assets/images/editorial-vitamin-d-sun-window.png") center right / auto 100% no-repeat,
    #f5f6f7;
}

.ed-feature-label {
  grid-column: 2;
  align-self: start;
  padding-top: var(--space-4);
  transform: translateX(-0.5rem);
}

.ed-feature-label span {
  display: block;
  margin-bottom: 0.6rem;
  color: var(--color-teal-deep);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.ed-feature-label strong {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 4vw, 5rem);
  font-weight: 400;
  line-height: 1.06;
  white-space: nowrap;
  cursor: default;
}

.ed-feature-copy {
  grid-column: 3;
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
}

.ed-feature-copy h2 {
  max-width: 11ch;
}

.ed-feature-copy p {
  max-width: 34rem;
  margin-top: var(--space-3);
  color: var(--color-muted);
  font-size: 1.08rem;
}

.ed-feature-copy .text-link {
  display: inline-block;
  margin-top: var(--space-3);
}

.ed-research {
  width: min(calc(100% - 2rem), 78rem);
  margin: 0 auto;
  padding: var(--space-5) 0;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(18rem, 0.7fr);
  gap: var(--space-5);
  align-items: start;
}

.ed-research h2 {
  max-width: 11ch;
  font-size: clamp(3.2rem, 5.6vw, 6.2rem);
  line-height: 1.06;
}

.research-sequence {
  display: grid;
  border-top: 1px solid var(--color-line);
}

.research-sequence button {
  padding: 1.3rem 0;
  border: 0;
  border-bottom: 1px solid var(--color-line);
  background: transparent;
  color: var(--color-graphite);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-align: left;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 180ms ease, padding-left 180ms ease;
}

.research-sequence button:hover,
.research-sequence button:focus-visible,
.research-sequence button.is-active {
  color: var(--color-teal-deep);
  padding-left: 0.5rem;
}

.ed-research > p {
  grid-column: 2;
  color: var(--color-muted);
  font-size: 0.94rem;
  font-style: italic;
  line-height: 1.55;
}

.research-sequence p {
  margin: 1rem 0 0;
  color: var(--color-muted);
  font-size: 0.9rem;
  font-style: italic;
  line-height: 1.55;
}

.ed-navigation {
  width: min(calc(100% - 2rem), 78rem);
  margin: 0 auto;
  padding: var(--space-4) 0 var(--space-6);
  border-top: 1px solid var(--color-line);
}

.ed-navigation h2 {
  max-width: none;
  font-size: clamp(2.8rem, 5vw, 5rem);
}

.ed-navigation > p {
  max-width: 54rem;
  margin-top: var(--space-2);
  color: var(--color-muted);
  font-size: clamp(1rem, 1.35vw, 1.16rem);
  line-height: 1.62;
}

.ed-navigation nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-top: var(--space-4);
}

.ed-navigation a {
  min-height: 13rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  gap: 1.35rem;
  padding: 1.2rem 1rem 1.1rem;
  border-top: 1px solid var(--color-line);
  color: var(--color-graphite);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  line-height: 1.35;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 180ms ease, transform 180ms ease, border-color 180ms ease;
}

.ed-navigation a i {
  color: var(--color-teal-deep);
  font-size: 1.45rem;
  line-height: 1;
}

.ed-navigation a span {
  display: block;
  max-width: 12rem;
  min-height: 2.7em;
}

.ed-navigation a small {
  display: block;
  max-width: 15rem;
  min-height: 4.25em;
  color: var(--color-muted);
  font-size: 0.92rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.42;
  text-transform: none;
}

.ed-navigation a:hover {
  background: #f8f9fa;
  border-color: rgba(169, 143, 70, 0.32);
  transform: translateY(-0.18rem);
}

.text-link,
.footer-group a,
.card-link {
  background-image: linear-gradient(currentColor, currentColor);
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 0 1px;
  transition: background-size 220ms ease, color 180ms ease, transform 180ms ease;
}

.text-link:hover,
.text-link:focus-visible,
.footer-group a:hover,
.footer-group a:focus-visible,
.card-link:hover,
.card-link:focus-visible {
  background-size: 100% 1px;
  color: var(--color-teal-deep);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    inset: 76px 0 auto 0;
    display: grid;
    gap: 0;
    padding: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(23, 25, 27, 0.98);
    transform: translateY(-120%);
    transition: transform 180ms ease;
  }

  body.nav-open .site-nav {
    transform: translateY(0);
  }

  .site-nav a {
    padding: 0.95rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .section-intro,
  .feature-block,
  .research-callout,
  .symptom-layout,
  .system-editorial,
  .physician-callout,
  .footer-inner {
    grid-template-columns: 1fr;
  }

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

  .journey-visual {
    grid-template-columns: 1fr;
    padding-top: 0;
  }

  .journey-line {
    display: none;
  }

  .journey-visual article {
    padding: 1.2rem 0 1.2rem 2.2rem;
    border-top: 1px solid var(--color-line);
  }

  .journey-visual article::before {
    top: 1.65rem;
    left: 0;
  }

  .system-editorial > img {
    min-height: 28rem;
  }

  .system-list a {
    grid-template-columns: 3rem minmax(0, 1fr);
  }

  .system-list em {
    grid-column: 2;
  }

  .ed-hero {
    grid-template-columns: 1rem minmax(0, 1fr) 1rem;
    min-height: calc(92svh - 76px);
  }

  .ed-hero-copy,
  .ed-hero-note {
    grid-column: 2;
  }

  .ed-hero h1 {
    font-size: clamp(4rem, 17vw, 7rem);
  }

  .ed-thesis,
  .ed-quote,
  .ed-systems,
  .ed-research {
    grid-template-columns: 1fr;
  }

  .ed-thesis {
    min-height: auto;
  }

  .ed-quote {
    display: block;
    min-height: auto;
    padding: var(--space-5) 1rem;
  }

  .ed-quote::after {
    display: none;
  }

  .ed-quote > img {
    position: relative;
    height: auto;
    aspect-ratio: 4 / 3;
    margin: 0 auto;
    object-position: center;
  }

  .ed-quote-copy {
    width: min(100%, 42rem);
    margin: calc(-1 * var(--space-3)) auto 0;
    padding: var(--space-3);
  }

  .ed-thesis > p,
  .ed-research > p {
    grid-column: auto;
    padding-bottom: 0;
  }

  .ed-systems img {
    min-height: 28rem;
  }

  .ed-feature {
    grid-template-columns: 1rem minmax(0, 1fr) 1rem;
    background:
      linear-gradient(180deg, rgba(245, 246, 247, 0.88), rgba(245, 246, 247, 0.94)),
      url("/assets/images/editorial-vitamin-d-sun-window.png") center / cover no-repeat;
  }

  .ed-feature-label,
  .ed-feature-copy {
    grid-column: 2;
  }

  .ed-feature-label {
    transform: none;
  }

  .ed-feature-copy {
    padding: var(--space-3);
  }

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

@media (max-width: 620px) {
  .hero {
    min-height: 78svh;
  }

  .hero-content {
    padding-bottom: var(--space-4);
  }

  .journey-grid,
  .system-grid,
  .symptom-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }

  .system-list a {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .system-list em {
    grid-column: auto;
  }

  .physician-callout {
    gap: 1rem;
  }

  .category-card {
    min-height: 14rem;
  }

  .image-card img {
    height: 14rem;
  }

  .ed-hero {
    min-height: calc(88svh - 76px);
  }

  .ed-hero-copy {
    padding-bottom: var(--space-2);
  }

  .ed-hero h1 {
    font-size: clamp(3.2rem, 14.8vw, 4.55rem);
  }

  .ed-hero-note {
    margin-bottom: var(--space-3);
  }

  .ed-thesis h2,
  .ed-image-break h2,
  .ed-pathway h2,
  .ed-quote h2,
  .ed-systems h2,
  .ed-research h2 {
    max-width: 100%;
  }

  .ed-thesis h2 {
    font-size: clamp(2.55rem, 10.8vw, 4.1rem);
  }

  .ed-image-break {
    min-height: 72svh;
    margin-block: var(--space-4);
  }

  .pathway-map {
    grid-template-columns: 1fr;
    overflow: visible;
    padding: 0;
  }

  .pathway-map a,
  .pathway-map a:nth-child(even) {
    min-height: auto;
    padding: 1.1rem 0 1.1rem 2rem;
    border-top: 1px solid var(--color-line);
  }

  .pathway-map::before,
  .pathway-map::after {
    display: none;
  }

  .pathway-map a::before {
    top: 1.55rem;
    left: 0;
  }

  .pathway-map > span[aria-hidden="true"] {
    display: none;
  }

  .ed-quote,
  .ed-feature {
    min-height: auto;
  }

  .signal-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
  }

  .signal-strip a {
    min-height: 2.5rem;
    padding: 0.6rem 0.68rem;
    font-size: 0.68rem;
    letter-spacing: 0.06em;
  }

  .ed-systems img {
    min-height: 20rem;
  }

  .ed-navigation nav {
    grid-template-columns: 1fr;
  }

  .ed-navigation a {
    min-height: 9rem;
  }

  .subpage .page-hero h1 {
    max-width: 100%;
    font-size: clamp(3rem, 13.5vw, 4.6rem);
  }

  .coming-soon h1 {
    max-width: 100%;
    font-size: clamp(3rem, 13.5vw, 4.6rem);
  }

}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .ed-hero img,
  .ed-hero h1 span,
  .ed-hero-note,
  .reveal-section > * {
    opacity: 1 !important;
    transform: none !important;
    clip-path: none !important;
  }
}