:root {
  --navy: #10263b;
  --navy-deep: #091928;
  --navy-soft: #1a354c;
  --green: #4f9d3a;
  --green-deep: #327526;
  --gold: #c39b32;
  --purple: #4b2e83;
  --blue: #256d85;
  --ink: #18212b;
  --muted: #5d6976;
  --line: #dbe1e6;
  --mist: #f2f5f6;
  --white: #ffffff;
  --max: 1180px;
}

* {
  box-sizing: border-box;
  letter-spacing: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

h1,
h2,
h3,
p,
figure,
ol,
ul {
  margin: 0;
}

h1,
h2,
h3 {
  line-height: 1.1;
}

h1 {
  max-width: 850px;
  font-size: 58px;
  font-weight: 760;
}

h2 {
  font-size: 40px;
  font-weight: 740;
}

h3 {
  font-size: 23px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-150%);
  border-radius: 4px;
  background: var(--white);
  padding: 10px 14px;
  color: var(--navy);
  font-weight: 700;
}

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

.site-header {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 20;
  display: flex;
  width: 100%;
  min-height: 92px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 max(28px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(16, 38, 59, 0.12);
  background: rgba(255, 255, 255, 0.97);
  color: var(--navy);
  transition: background-color 180ms ease, box-shadow 180ms ease;
}

.site-header.scrolled {
  position: fixed;
  border-bottom-color: rgba(16, 38, 59, 0.08);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 8px 30px rgba(9, 25, 40, 0.13);
}

.wordmark {
  display: block;
  flex: 0 0 auto;
  text-decoration: none;
}

.wordmark-logo {
  width: 132px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.site-nav a {
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a:not(.nav-action):hover,
.site-nav a:not(.nav-action):focus-visible {
  color: var(--green-deep);
}

.nav-action {
  border: 1px solid var(--navy);
  border-radius: 5px;
  background: var(--navy);
  color: var(--white);
  padding: 9px 14px;
}

.nav-action:hover,
.nav-action:focus-visible {
  border-color: var(--green-deep);
  background: var(--green-deep);
  color: var(--white);
}

.menu-toggle {
  display: none;
  border: 1px solid rgba(16, 38, 59, 0.38);
  border-radius: 5px;
  background: transparent;
  color: var(--navy);
  padding: 8px 11px;
  font-weight: 700;
}

.hero {
  position: relative;
  display: flex;
  min-height: 82svh;
  align-items: center;
  overflow: hidden;
  background: var(--navy);
  color: var(--white);
}

.hero-image,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-image {
  background-image: url("/assets/perfusion-training-lab.webp");
  background-position: center;
  background-size: cover;
}

.hero-shade {
  background: rgba(5, 20, 33, 0.56);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(var(--max), calc(100% - 56px));
  margin: 0 auto;
  padding: 154px 0 92px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 17px;
  color: var(--green-deep);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.eyebrow.light,
.hero .eyebrow {
  color: #91db7d;
}

.hero p {
  max-width: 660px;
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 20px;
  line-height: 1.55;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.hero-actions {
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 11px 18px;
  font-weight: 750;
  text-decoration: none;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease, transform 150ms ease;
}

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

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

.button-primary:hover,
.button-primary:focus-visible {
  border-color: #5eb249;
  background: #5eb249;
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.72);
  background: rgba(9, 25, 40, 0.28);
  color: var(--white);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--white);
  background: var(--white);
  color: var(--navy);
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 44px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  font-weight: 650;
}

.hero-proof span {
  position: relative;
  padding-left: 15px;
}

.hero-proof span::before {
  position: absolute;
  top: 0.55em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  content: "";
}

.principles {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.principle {
  min-height: 154px;
  padding: 29px max(22px, calc((100vw - var(--max)) / 8));
  border-right: 1px solid var(--line);
}

.principle:last-child {
  border-right: 0;
}

.principle strong,
.principle span {
  display: block;
}

.principle strong {
  color: var(--navy);
  font-size: 16px;
}

.principle span {
  margin-top: 7px;
  color: var(--muted);
  font-size: 14px;
}

.section {
  width: min(var(--max), calc(100% - 56px));
  margin: 0 auto;
  padding: 104px 0;
}

.section-heading {
  max-width: 820px;
}

.section-heading.compact {
  max-width: 700px;
}

.section-heading p {
  max-width: 710px;
  margin-top: 20px;
  color: var(--muted);
  font-size: 18px;
}

.platform-section {
  padding-bottom: 80px;
}

.platform-preview {
  margin-top: 52px;
}

.platform-preview img {
  width: 100%;
  border: 1px solid #cfd7dd;
  border-radius: 8px;
  box-shadow: 0 22px 55px rgba(16, 38, 59, 0.14);
}

.platform-preview figcaption {
  margin-top: 13px;
  color: var(--muted);
  font-size: 13px;
}

.pathways-section {
  padding-top: 62px;
}

.pathway-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 44px;
}

.pathway-card {
  display: flex;
  min-height: 320px;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--white);
  padding: 25px;
}

.card-index {
  color: var(--gold);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}

.pathway-card h3 {
  margin-top: 32px;
  color: var(--navy);
}

.pathway-card p {
  margin-top: 14px;
  color: var(--muted);
  font-size: 15px;
}

.card-state {
  margin-top: auto;
  padding-top: 28px;
  color: var(--green-deep);
  font-size: 12px;
  font-weight: 780;
}

.card-state.developing {
  color: var(--purple);
}

.method-section {
  background: var(--navy);
  color: var(--white);
}

.method-inner {
  display: grid;
  width: min(var(--max), calc(100% - 56px));
  grid-template-columns: 0.9fr 1.1fr;
  gap: 90px;
  margin: 0 auto;
  padding: 108px 0;
}

.method-copy p {
  margin-top: 23px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 17px;
}

.method-steps {
  list-style: none;
  padding: 0;
}

.method-steps li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 18px;
  padding: 21px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.method-steps li:first-child {
  border-top: 0;
  padding-top: 0;
}

.method-steps > li > span {
  color: var(--gold);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}

.method-steps strong {
  display: block;
  font-size: 17px;
}

.method-steps p {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 14px;
}

.programs-section {
  padding-bottom: 114px;
}

.audience-switcher {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 38px;
  margin-top: 48px;
  border-top: 1px solid var(--line);
  padding-top: 36px;
}

.audience-tabs {
  display: grid;
  align-content: start;
  gap: 5px;
}

.audience-tab {
  min-height: 48px;
  border: 0;
  border-left: 3px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  padding: 0 17px;
  text-align: left;
  font-weight: 720;
  cursor: pointer;
}

.audience-tab.active {
  border-left-color: var(--gold);
  background: var(--mist);
  color: var(--navy);
}

.audience-panel {
  display: grid;
  min-height: 290px;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 58px;
  align-items: start;
  border-left: 1px solid var(--line);
  padding-left: 42px;
}

.audience-panel[hidden] {
  display: none;
}

.panel-label {
  color: var(--green-deep);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.audience-panel h3 {
  margin-top: 12px;
  color: var(--navy);
  font-size: 30px;
}

.audience-panel p {
  margin-top: 15px;
  color: var(--muted);
}

.audience-panel ul {
  list-style: none;
  padding: 0;
}

.audience-panel li {
  position: relative;
  padding: 13px 0 13px 22px;
  border-bottom: 1px solid var(--line);
  font-weight: 650;
}

.audience-panel li::before {
  position: absolute;
  top: 1.25em;
  left: 1px;
  width: 8px;
  height: 8px;
  border: 2px solid var(--green);
  border-radius: 50%;
  content: "";
}

.company-section {
  width: 100%;
  max-width: none;
  background: var(--mist);
  padding-right: max(28px, calc((100vw - var(--max)) / 2));
  padding-left: max(28px, calc((100vw - var(--max)) / 2));
}

.company-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 88px;
}

.company-copy {
  display: grid;
  gap: 20px;
  color: var(--muted);
  font-size: 17px;
}

.contact-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  background: var(--navy-deep);
  color: var(--white);
  padding: 78px max(28px, calc((100vw - var(--max)) / 2));
}

.contact-section > div:first-child {
  max-width: 720px;
}

.contact-section h2 {
  font-size: 35px;
}

.contact-actions {
  justify-content: flex-end;
}

.text-link {
  color: var(--white);
  font-weight: 700;
  text-underline-offset: 4px;
}

.site-footer {
  display: grid;
  grid-template-columns: 230px 1fr auto;
  gap: 36px;
  align-items: center;
  border-top: 1px solid var(--line);
  background: var(--white);
  color: var(--muted);
  padding: 30px max(28px, calc((100vw - var(--max)) / 2));
  font-size: 12px;
}

.footer-logo {
  width: 205px;
  height: auto;
}

@media (max-width: 980px) {
  h1 {
    font-size: 46px;
  }

  h2 {
    font-size: 35px;
  }

  .site-nav {
    gap: 17px;
  }

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

  .principle:nth-child(2) {
    border-right: 0;
  }

  .principle:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

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

  .method-inner,
  .company-grid {
    grid-template-columns: 1fr;
    gap: 52px;
  }

  .audience-switcher {
    grid-template-columns: 1fr;
  }

  .audience-tabs {
    grid-template-columns: repeat(3, 1fr);
  }

  .audience-tab {
    border-bottom: 3px solid transparent;
    border-left: 0;
    text-align: center;
  }

  .audience-tab.active {
    border-bottom-color: var(--gold);
  }

  .audience-panel {
    border-left: 0;
    padding-left: 0;
  }

  .contact-section,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .contact-section {
    align-items: flex-start;
    flex-direction: column;
  }

  .contact-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 760px) {
  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 31px;
  }

  .site-header {
    min-height: 78px;
    padding: 0 20px;
  }

  .wordmark-logo {
    width: 106px;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 78px;
    right: 0;
    left: 0;
    display: none;
    height: calc(100svh - 78px);
    align-content: start;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    color: var(--navy);
    padding: 24px 20px;
  }

  .site-nav.open {
    display: grid;
  }

  .site-nav a {
    min-height: 52px;
    padding: 14px 4px;
    border-bottom: 1px solid var(--line);
    font-size: 17px;
  }

  .site-nav .nav-action {
    min-height: 46px;
    margin-top: 20px;
    border: 1px solid var(--navy);
    padding: 10px 14px;
    text-align: center;
  }

  .hero {
    min-height: 86svh;
  }

  .hero-image {
    background-position: 63% center;
  }

  .hero-shade {
    background: rgba(5, 20, 33, 0.7);
  }

  .hero-content,
  .section,
  .method-inner {
    width: calc(100% - 40px);
  }

  .hero-content {
    padding: 128px 0 60px;
  }

  .hero p {
    font-size: 18px;
  }

  .hero-proof {
    gap: 12px 20px;
    margin-top: 30px;
  }

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

  .principle {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 22px 20px;
  }

  .principle:last-child {
    border-bottom: 0;
  }

  .section {
    padding: 76px 0;
  }

  .pathways-section {
    padding-top: 30px;
  }

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

  .pathway-card {
    min-height: 260px;
  }

  .method-inner {
    padding: 78px 0;
  }

  .audience-tabs {
    grid-template-columns: 1fr;
  }

  .audience-tab {
    border-bottom: 0;
    border-left: 3px solid transparent;
    text-align: left;
  }

  .audience-tab.active {
    border-bottom-color: transparent;
    border-left-color: var(--gold);
  }

  .audience-panel {
    min-height: 0;
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .company-section {
    padding-right: 20px;
    padding-left: 20px;
  }

  .contact-section {
    padding: 62px 20px;
  }

  .contact-section h2 {
    font-size: 30px;
  }

  .site-footer {
    padding: 28px 20px;
  }

  .footer-logo {
    width: 210px;
  }
}

@media (max-width: 430px) {
  h1 {
    font-size: 34px;
  }

  .hero-actions,
  .contact-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}