:root {
  --bg: #f5fbfa;
  --surface: #ffffff;
  --surface-strong: #eff8f8;
  --surface-dark: #082431;
  --surface-dark-soft: #12384c;
  --line: rgba(8, 36, 49, 0.1);
  --line-strong: rgba(114, 241, 218, 0.25);
  --text: #102633;
  --text-soft: #56707e;
  --text-inverse: #f5fffd;
  --mint: #72f1da;
  --teal: #0f7c7a;
  --teal-deep: #0b5b63;
  --sand: #e4efe7;
  --shadow-soft: 0 22px 60px rgba(8, 36, 49, 0.12);
  --shadow-card: 0 16px 38px rgba(8, 36, 49, 0.08);
  --radius-lg: 30px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --max-width: 1180px;
  font-size: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(114, 241, 218, 0.14), transparent 28%),
    linear-gradient(180deg, #f8fdfc 0%, var(--bg) 100%);
  line-height: 1.6;
}

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

a {
  color: inherit;
}

.wrap {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding: 0 1.5rem;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--surface-dark);
  color: var(--text-inverse);
  padding: 0.85rem 1.2rem;
  z-index: 1000;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(245, 251, 250, 0.75);
  backdrop-filter: blur(18px);
}

.site-header.scrolled {
  box-shadow: 0 10px 30px rgba(8, 36, 49, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 5.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  color: var(--surface-dark);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand span {
  font-size: 1.06rem;
}

.brand img {
  border-radius: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav a {
  text-decoration: none;
  font-size: 0.95rem;
  color: var(--text-soft);
  transition: color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--teal-deep);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 4.2rem 0 3.8rem;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  filter: blur(12px);
  pointer-events: none;
}

.hero::before {
  width: 24rem;
  height: 24rem;
  top: -8rem;
  right: -6rem;
  background: rgba(114, 241, 218, 0.18);
}

.hero::after {
  width: 18rem;
  height: 18rem;
  bottom: -6rem;
  left: -5rem;
  background: rgba(15, 124, 122, 0.1);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 3rem;
  align-items: center;
}

.hero-copy,
.hero-visual,
.metric-card,
.step-card,
.leadership-card,
.evidence-card,
.contact-panel {
  animation: rise-in 0.8s ease both;
}

.hero-copy {
  animation-delay: 0.08s;
}

.hero-visual {
  animation-delay: 0.16s;
}

.eyebrow {
  margin: 0 0 0.9rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  letter-spacing: -0.03em;
}

h1 {
  max-width: 12ch;
  font-size: clamp(3rem, 6vw, 5.4rem);
  line-height: 0.95;
  color: var(--surface-dark);
}

h2 {
  font-size: clamp(2rem, 3.2vw, 3.1rem);
  line-height: 1.02;
  color: var(--surface-dark);
}

h3 {
  font-size: 1.28rem;
  line-height: 1.15;
  color: var(--surface-dark);
}

.lede,
.science-copy p,
.leadership-card p,
.evidence-card p,
.contact-copy p,
.metric-card p,
.step-card p {
  color: var(--text-soft);
}

.lede {
  max-width: 36rem;
  margin: 1.4rem 0 0;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.25rem;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  color: var(--text-inverse);
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-deep) 100%);
  box-shadow: 0 12px 24px rgba(15, 124, 122, 0.25);
}

.btn-secondary {
  color: var(--surface-dark);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(8, 36, 49, 0.12);
}

.btn-block {
  width: 100%;
}

.trust-band {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.trust-band span {
  padding: 0.7rem 1rem;
  border: 1px solid rgba(8, 36, 49, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  color: var(--surface-dark);
  font-size: 0.92rem;
}

.hero-visual {
  position: relative;
}

.signal-card {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(8, 36, 49, 0.98), rgba(10, 45, 56, 0.98));
  color: var(--text-inverse);
  box-shadow: var(--shadow-soft);
}

.signal-card-main {
  padding: 1.2rem;
}

.signal-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.45rem 1rem;
  color: rgba(245, 255, 253, 0.82);
  font-size: 0.9rem;
}

.signal-dot {
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 0 rgba(114, 241, 218, 0.4);
  animation: pulse 2.4s infinite;
}

.hero-diagram {
  width: 100%;
  height: auto;
}

.diagram-grid path {
  fill: none;
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 1;
}

.diagram-wave {
  fill: none;
  stroke: url(#waveStroke);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.diagram-node {
  fill: var(--mint);
}

.diagram-shield {
  fill: rgba(114, 241, 218, 0.12);
  stroke: rgba(114, 241, 218, 0.65);
  stroke-width: 2.5;
  stroke-linejoin: round;
}

.diagram-shield-check {
  fill: none;
  stroke: var(--mint);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.signal-card-floating {
  position: absolute;
  right: -1rem;
  bottom: 1.25rem;
  max-width: 16rem;
  padding: 1rem 1.1rem;
  background: rgba(255, 255, 255, 0.94);
  color: var(--surface-dark);
  border: 1px solid rgba(8, 36, 49, 0.08);
  box-shadow: var(--shadow-card);
}

.signal-card-floating p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.45;
}

.section {
  padding: 5.6rem 0;
}

.section-heading {
  max-width: 44rem;
  margin-bottom: 2rem;
}

.section-intro {
  padding-top: 3rem;
}

.metric-grid,
.evidence-grid,
.leadership-grid {
  display: grid;
  gap: 1.35rem;
}

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

.metric-card,
.leadership-card,
.evidence-card,
.contact-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow-card);
}

.metric-card {
  padding: 1.7rem;
}

.metric-card:nth-child(2) {
  animation-delay: 0.08s;
}

.metric-card:nth-child(3) {
  animation-delay: 0.16s;
}

.metric-label,
.step-index,
.contact-label {
  display: inline-block;
  margin-bottom: 0.85rem;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.metric-label {
  color: var(--teal);
}

.metric-card p,
.step-card p,
.evidence-card p,
.leadership-card p,
.contact-item {
  margin-top: 0.9rem;
}

.science-section {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.45), rgba(255, 255, 255, 0.78)),
    radial-gradient(circle at right center, rgba(114, 241, 218, 0.18), transparent 30%);
}

.science-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 2rem;
  align-items: start;
}

.science-copy {
  padding-right: 1rem;
}

.science-copy p {
  max-width: 36rem;
}

.science-steps {
  display: grid;
  gap: 1rem;
}

.step-card {
  position: relative;
  padding: 1.45rem 1.5rem 1.45rem 5.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow-card);
}

.step-card:nth-child(2) {
  animation-delay: 0.08s;
}

.step-card:nth-child(3) {
  animation-delay: 0.16s;
}

.step-index {
  position: absolute;
  left: 1.4rem;
  top: 1.6rem;
  color: var(--teal);
}

.leadership-grid,
.evidence-grid,
.contact-shell {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.leadership-card,
.evidence-card {
  padding: 2rem;
}

.accent-card {
  background: linear-gradient(180deg, rgba(11, 91, 99, 0.96), rgba(8, 36, 49, 0.98));
  border-color: rgba(114, 241, 218, 0.15);
}

.accent-card .eyebrow,
.accent-card h2,
.accent-card p {
  color: var(--text-inverse);
}

.accent-card .eyebrow {
  color: rgba(114, 241, 218, 0.9);
}

.contact-section {
  padding-top: 2.5rem;
}

.contact-shell {
  display: grid;
  gap: 1.5rem;
  align-items: stretch;
  padding: 2rem;
  border-radius: calc(var(--radius-lg) + 4px);
  background: linear-gradient(140deg, var(--surface-dark) 0%, var(--surface-dark-soft) 100%);
  box-shadow: var(--shadow-soft);
}

.contact-copy h2,
.contact-copy p,
.contact-copy .eyebrow {
  color: var(--text-inverse);
}

.contact-copy .eyebrow {
  color: rgba(114, 241, 218, 0.9);
}

.contact-panel {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.96);
}

.contact-item + .contact-item {
  margin-top: 1.2rem;
}

.contact-label {
  color: var(--text-soft);
}

.contact-value {
  display: block;
  color: var(--surface-dark);
  font-weight: 700;
  font-size: 1.05rem;
}

.contact-link {
  text-decoration: none;
}

.contact-link:hover,
.contact-link:focus-visible {
  color: var(--teal-deep);
}

.site-footer {
  padding: 2.2rem 0 3rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  color: var(--text-soft);
  font-size: 0.9rem;
  text-align: center;
}

.footer-inner p {
  margin: 0;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(114, 241, 218, 0.45);
  }

  70% {
    box-shadow: 0 0 0 18px rgba(114, 241, 218, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(114, 241, 218, 0);
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

@media (max-width: 980px) {
  .hero-grid,
  .science-grid,
  .leadership-grid,
  .evidence-grid,
  .contact-shell,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3rem;
  }

  .hero-copy {
    max-width: 42rem;
  }

  h1 {
    max-width: none;
  }

  .signal-card-floating {
    position: static;
    max-width: none;
    margin-top: 1rem;
  }
}

@media (max-width: 720px) {
  .header-inner {
    flex-direction: column;
    justify-content: center;
    gap: 0.9rem;
    padding: 1rem 0;
  }

  .site-nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.9rem 1.2rem;
  }

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

  .step-card {
    padding-left: 1.5rem;
  }

  .step-index {
    position: static;
  }

  .contact-shell {
    padding: 1.3rem;
  }
}

@media (max-width: 560px) {
  .wrap {
    padding: 0 1rem;
  }

  .section {
    padding: 4.5rem 0;
  }

  .metric-card,
  .leadership-card,
  .evidence-card,
  .contact-panel,
  .step-card {
    padding: 1.35rem;
  }

  .btn {
    width: 100%;
  }
}