:root {
  --navy: #10263b;
  --navy-soft: #18364f;
  --teal: #168a92;
  --teal-soft: #dff3f4;
  --slate: #425466;
  --text: #17212b;
  --muted: #6f7f8d;
  --light: #f5f8fa;
  --border: #d9e3e8;
  --white: #ffffff;

  --max-width: 1180px;
  --radius: 18px;
  --shadow: 0 18px 55px rgba(16, 38, 59, 0.08);
}

* {
  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(--text);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
}

.narrow {
  width: min(calc(100% - 40px), 860px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 26px;
  color: var(--navy);
  font-size: clamp(3rem, 7vw, 5.9rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
  font-weight: 800;
}

h1 span {
  display: block;
  color: var(--teal);
}

h2 {
  margin-bottom: 24px;
  color: var(--navy);
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
  font-weight: 750;
}

h3 {
  margin-bottom: 12px;
  color: var(--navy);
  font-size: 1.18rem;
  line-height: 1.25;
}

p {
  color: var(--slate);
}

.section {
  padding: 110px 0;
}

.section-light {
  background: var(--light);
}

.section-dark {
  background: var(--navy);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 54px;
}

.section-heading p:last-child {
  margin-bottom: 0;
}

.section-intro {
  font-size: 1.18rem;
  line-height: 1.75;
}

.emphasis {
  margin-top: 32px;
  padding-left: 24px;
  border-left: 3px solid var(--teal);
  color: var(--navy);
  font-size: 1.18rem;
  font-weight: 600;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(217, 227, 232, 0.85);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
}

.header-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  color: var(--navy);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-subtitle {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.72rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 27px;
}

.nav a {
  color: var(--slate);
  font-size: 0.87rem;
  font-weight: 600;
  transition: color 0.2s ease;
}

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

.nav-contact {
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
}

/* Hero */

.hero {
  padding: 112px 0 105px;
  overflow: hidden;
  background:
    radial-gradient(circle at 80% 20%, rgba(22, 138, 146, 0.08), transparent 32%),
    linear-gradient(to bottom, #ffffff, #fbfdfe);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 84px;
  align-items: center;
}

.hero-lead {
  max-width: 720px;
  color: var(--slate);
  font-size: 1.18rem;
  line-height: 1.8;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 750;
  transition:
    transform 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}

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

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

.button-primary:hover {
  background: var(--navy-soft);
}

.button-secondary {
  color: var(--navy);
  border: 1px solid var(--border);
  background: var(--white);
}

.button-secondary:hover {
  border-color: var(--teal);
}

.development-note {
  margin-top: 24px;
  color: var(--muted);
  font-size: 0.78rem;
}

.intelligence-card {
  padding: 34px;
  border: 1px solid var(--border);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.card-label {
  margin-bottom: 18px;
  color: var(--teal);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.signal-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.signal-box {
  min-height: 86px;
  padding: 17px 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-radius: 14px;
  background: var(--light);
  text-align: center;
}

.signal-box strong {
  color: var(--navy);
  font-size: 0.87rem;
}

.signal-box span {
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.72rem;
}

.flow-arrow {
  margin: 11px 0;
  color: var(--teal);
  font-size: 1.15rem;
  font-weight: 800;
  text-align: center;
}

.asi-core {
  padding: 20px;
  border-radius: 16px;
  background: var(--navy);
  text-align: center;
}

.asi-core span {
  display: block;
  margin-bottom: 4px;
  color: #75d8dc;
  font-size: 1.9rem;
  font-weight: 850;
}

.asi-core strong {
  color: var(--white);
  font-size: 0.91rem;
}

.recommendation-box,
.clinician-box {
  padding: 16px;
  border-radius: 14px;
  text-align: center;
  font-weight: 700;
}

.recommendation-box {
  color: var(--navy);
  border: 1px solid var(--border);
  background: var(--white);
}

.clinician-box {
  color: var(--navy);
  background: var(--teal-soft);
}

/* ASI */

.two-column {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 78px;
  align-items: start;
}

.two-column > div:first-child {
  font-size: 1.05rem;
}

.concept-stack {
  display: grid;
  gap: 12px;
}

.concept {
  padding: 21px 22px;
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 16px;
  align-items: start;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: var(--white);
}

.concept > span {
  color: var(--teal);
  font-size: 0.75rem;
  font-weight: 800;
}

.concept strong {
  color: var(--navy);
}

.concept p {
  margin: 3px 0 0;
  font-size: 0.88rem;
}

.concept-highlight {
  border-color: rgba(22, 138, 146, 0.42);
  background: var(--teal-soft);
}

/* Development */

.light-heading h2,
.light-heading p {
  color: var(--white);
}

.light-heading .eyebrow {
  color: #74d9dc;
}

.development-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.development-card {
  padding: 28px 24px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.055);
}

.development-card > span {
  color: #75d8dc;
  font-size: 0.74rem;
  font-weight: 800;
}

.development-card h3 {
  margin-top: 13px;
  color: var(--white);
}

.development-card p {
  margin-bottom: 0;
  color: #c3ced6;
  font-size: 0.9rem;
}

.development-disclaimer {
  margin: 28px 0 0;
  color: #9fb0bc;
  font-size: 0.79rem;
}

/* Clinician */

.clinician-section {
  max-width: 900px;
}

.decision-flow {
  margin: 38px 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.decision-flow span,
.decision-flow strong {
  min-height: 92px;
  padding: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--border);
  text-align: center;
  font-size: 0.87rem;
}

.decision-flow span {
  color: var(--slate);
  background: var(--white);
}

.decision-flow strong {
  color: var(--navy);
  border-right: 0;
  background: var(--teal-soft);
}

/* Collaboration */

.collaboration-grid {
  display: grid;
  grid-template-columns: 1fr 60px 1fr;
  gap: 18px;
  align-items: center;
}

.collaboration-card {
  min-height: 250px;
  padding: 34px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
}

.collaboration-plus {
  color: var(--teal);
  font-size: 2.2rem;
  font-weight: 300;
  text-align: center;
}

.pathway {
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: var(--white);
}

.pathway div {
  min-height: 104px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--border);
}

.pathway div:last-child {
  border-right: 0;
}

.pathway span {
  color: var(--teal);
  font-size: 0.72rem;
  font-weight: 800;
}

.pathway strong {
  margin-top: 6px;
  color: var(--navy);
  font-size: 0.88rem;
}

/* Contact */

.contact-section {
  background:
    radial-gradient(circle at 80% 30%, rgba(22, 138, 146, 0.1), transparent 25%),
    var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 80px;
  align-items: center;
}

.contact-grid > div:first-child {
  max-width: 690px;
}

.founder-card {
  padding: 34px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--light);
}

.founder-card a {
  color: var(--teal);
  font-weight: 700;
  word-break: break-word;
}

.domain {
  margin-top: 18px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

/* Footer */

.site-footer {
  padding: 38px 0;
  background: var(--navy);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1.8fr 0.7fr;
  gap: 36px;
  align-items: start;
}

.footer-inner strong,
.footer-inner span,
.footer-inner div {
  color: #d4dee5;
  font-size: 0.72rem;
}

.footer-inner strong {
  display: block;
  margin-bottom: 4px;
  color: var(--white);
}

.footer-disclaimer {
  color: #a9bac5 !important;
}

/* Responsive */

@media (max-width: 980px) {
  .nav {
    display: none;
  }

  .hero-grid,
  .two-column,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 55px;
  }

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

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

  .decision-flow span,
  .decision-flow strong,
  .pathway div {
    border-bottom: 1px solid var(--border);
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .container,
  .narrow {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .section {
    padding: 78px 0;
  }

  .hero {
    padding: 78px 0;
  }

  h1 {
    font-size: clamp(2.75rem, 14vw, 4rem);
  }

  h2 {
    font-size: 2.25rem;
  }

  .signal-row,
  .development-grid,
  .decision-flow,
  .pathway {
    grid-template-columns: 1fr;
  }

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

  .collaboration-plus {
    transform: rotate(90deg);
  }

  .decision-flow span,
  .decision-flow strong,
  .pathway div {
    border-right: 0;
  }

  .header-inner {
    min-height: 70px;
  }

  .brand-subtitle {
    display: none;
  }
}