:root {
  color-scheme: light;
  --ink: #152126;
  --muted: #536469;
  --paper: #f7f8f4;
  --white: #ffffff;
  --line: #d9ded8;
  --teal: #127b79;
  --teal-dark: #0c5555;
  --amber: #c88b28;
  --coral: #b85c4a;
  --graphite: #172125;
  --mist: #e8f0ee;
  --shadow: 0 20px 60px rgba(19, 33, 38, 0.12);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}

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

a {
  color: inherit;
}

svg {
  display: block;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 4vw, 56px);
  color: var(--white);
  transition: background 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  color: var(--ink);
  background: rgba(247, 248, 244, 0.94);
  box-shadow: 0 10px 30px rgba(21, 33, 38, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--teal);
  background: var(--white);
  border-radius: 50%;
}

.brand-mark svg {
  width: 26px;
  height: 26px;
  fill: currentColor;
}

.site-header.is-scrolled .brand-mark,
.site-header.is-open .brand-mark {
  color: var(--white);
  background: var(--teal);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  font-size: 0.94rem;
  font-weight: 700;
}

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

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 2px;
  background: currentColor;
  content: "";
  opacity: 0;
  transform: scaleX(0.4);
  transition: opacity 160ms ease, transform 160ms ease;
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  place-items: center;
  padding: 0;
  color: currentColor;
  background: transparent;
  border: 1px solid currentColor;
  border-radius: 50%;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
}

.nav-toggle span + span {
  margin-top: 5px;
}

.hero {
  position: relative;
  min-height: 94vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
}

.hero-image,
.hero-scrim {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: center;
}

.hero-scrim {
  background:
    linear-gradient(90deg, rgba(12, 25, 29, 0.88), rgba(12, 25, 29, 0.55) 38%, rgba(12, 25, 29, 0.18) 74%),
    linear-gradient(0deg, rgba(12, 25, 29, 0.28), rgba(12, 25, 29, 0.08));
}

.hero-content {
  position: relative;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 120px 0 86px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--amber);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 790px;
  margin: 0;
  font-size: clamp(3.1rem, 8vw, 6.9rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 730px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-disclaimer {
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.78rem;
  font-weight: 600;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.button svg {
  width: 19px;
  height: 19px;
  fill: currentColor;
  flex: 0 0 auto;
}

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

.button.primary:hover {
  background: var(--teal-dark);
}

.button.secondary {
  color: var(--white);
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.42);
}

.metrics-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}

.metric {
  min-height: 148px;
  padding: clamp(22px, 3vw, 34px);
  background: var(--white);
}

.metric strong {
  display: block;
  color: var(--teal-dark);
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1;
}

.metric span {
  display: block;
  max-width: 260px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.95rem;
}

.section {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(72px, 9vw, 118px) 0;
}

.split,
.market,
.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  gap: clamp(34px, 7vw, 88px);
  align-items: start;
}

.section h2 {
  margin: 0;
  max-width: 830px;
  font-size: clamp(2.1rem, 5vw, 4rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.section h3 {
  margin: 0;
  font-size: 1.25rem;
  line-height: 1.2;
}

.section-copy p:not(.eyebrow),
.section-heading p:not(.eyebrow),
.contact p:not(.eyebrow) {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.05rem;
}

.need-panel {
  display: grid;
  gap: 1px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.need-panel div {
  padding: 26px;
  background: var(--white);
}

.panel-label {
  display: block;
  color: var(--coral);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.need-panel p {
  margin: 9px 0 0;
  color: var(--ink);
}

.platform,
.evidence,
.development {
  width: 100%;
  max-width: none;
  padding-inline: max(20px, calc((100vw - var(--max)) / 2));
}

.platform {
  background: var(--graphite);
  color: var(--white);
}

.platform .section-heading p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.72);
}

.section-heading {
  margin-bottom: clamp(34px, 5vw, 60px);
}

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

.feature-card {
  min-height: 256px;
  padding: 26px;
  background: rgba(255, 255, 255, 0.075);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
}

.feature-card svg {
  width: 34px;
  height: 34px;
  margin-bottom: 24px;
  fill: var(--amber);
}

.feature-card p {
  color: rgba(255, 255, 255, 0.72);
}

.media-pair,
.concept-showcase {
  display: grid;
  gap: 18px;
  margin-top: 48px;
}

.media-pair {
  grid-template-columns: 0.84fr 1.16fr;
}

.concept-showcase {
  grid-template-columns: 1.08fr 0.92fr;
  align-items: stretch;
}

figure {
  margin: 0;
}

.media-pair figure,
.concept-showcase figure,
.chart-frame,
.study-figure {
  overflow: hidden;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.media-pair img {
  width: 100%;
  height: 390px;
  object-fit: cover;
}

.concept-showcase img {
  width: 100%;
  height: 520px;
  object-fit: cover;
}

figcaption {
  padding: 14px 16px 16px;
  color: var(--muted);
  font-size: 0.92rem;
}

.concept-showcase figcaption {
  padding: 9px 12px 11px;
  color: #667377;
  font-size: 0.76rem;
  line-height: 1.35;
}

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

.evidence-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  align-items: stretch;
}

.chart-frame img {
  width: 100%;
  min-height: 320px;
  object-fit: contain;
  background: #fff;
}

.evidence-list {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.evidence-list div {
  padding: 28px;
  background: var(--white);
}

.evidence-list span,
.roadmap-badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  color: var(--white);
  background: var(--teal);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.evidence-list p {
  margin-bottom: 0;
  color: var(--muted);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.timeline article {
  padding: clamp(26px, 4vw, 40px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.timeline h3 {
  margin-top: 22px;
  font-size: clamp(1.45rem, 3vw, 2.1rem);
}

.timeline p,
.timeline li {
  color: var(--muted);
}

.timeline ul {
  margin: 22px 0 0;
  padding-left: 20px;
}

.timeline li + li {
  margin-top: 10px;
}

.study-figure {
  margin-top: 24px;
}

.study-figure img {
  width: 100%;
  background: var(--white);
}

.market {
  align-items: center;
}

.condition-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.condition-grid span {
  padding: 18px 20px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 5px solid var(--amber);
  border-radius: var(--radius);
  font-weight: 800;
}

.contact {
  width: 100%;
  max-width: none;
  padding-inline: max(20px, calc((100vw - var(--max)) / 2));
  background: var(--graphite);
  color: var(--white);
}

.contact p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.72);
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: clamp(24px, 4vw, 34px);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.9rem;
  font-weight: 800;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 13px 14px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  font: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 3px solid rgba(200, 139, 40, 0.42);
  border-color: var(--amber);
}

.contact-note {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.95rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  padding: 28px max(20px, calc((100vw - var(--max)) / 2));
  color: rgba(255, 255, 255, 0.72);
  background: #0c1214;
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0;
}

.disclaimer {
  max-width: 560px;
  text-align: right;
}

@media (max-width: 940px) {
  .nav-toggle {
    display: grid;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 20px;
    left: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    color: var(--ink);
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  .site-header.is-open .site-nav {
    display: flex;
  }

  .site-nav a {
    padding: 13px 12px;
  }

  .site-nav a::after {
    display: none;
  }

  .metrics-band,
  .feature-grid,
  .timeline {
    grid-template-columns: repeat(2, 1fr);
  }

  .split,
  .market,
  .contact,
  .evidence-layout,
  .media-pair,
  .concept-showcase {
    grid-template-columns: 1fr;
  }

  .evidence-list {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  .media-pair img,
  .concept-showcase img,
  .concept-showcase .concept-primary img {
    height: auto;
  }
}

@media (max-width: 620px) {
  .site-header {
    padding-inline: 16px;
  }

  .hero {
    min-height: 88vh;
  }

  .hero-content {
    width: calc(100% - 32px);
    padding-top: 110px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .metrics-band,
  .feature-grid,
  .timeline,
  .condition-grid {
    grid-template-columns: 1fr;
  }

  .metric {
    min-height: auto;
  }

  .section {
    width: calc(100% - 32px);
  }

  .platform,
  .evidence,
  .development,
  .contact {
    padding-inline: 16px;
  }

  .site-footer {
    flex-direction: column;
    padding-inline: 16px;
  }

  .disclaimer {
    text-align: left;
  }
}