:root {
  --navy: #10304a;
  --blue: #1e5f87;
  --teal: #2f8f97;
  --seafoam: #e8f7f6;
  --mist: #f4f8fb;
  --ink: #173042;
  --muted: #5b7282;
  --line: #d5e0e8;
  --white: #ffffff;
  --shadow: 0 22px 60px rgba(16, 48, 74, 0.12);
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Manrope', sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #f6fbfd 0%, #ffffff 18%, #ffffff 100%);
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  background: linear-gradient(90deg, var(--navy), var(--blue));
  color: #eaf7ff;
  text-align: center;
  padding: 12px 18px;
  font-size: 0.92rem;
}

.site-header {
  max-width: 1240px;
  margin: 18px auto 0;
  padding: 0 22px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: center;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--navy);
  text-decoration: none;
}
.brand-mark strong {
  display: block;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}
.brand-mark em {
  display: block;
  font-style: normal;
  color: var(--muted);
  font-size: 0.83rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.brand-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--teal), var(--blue));
  border-radius: 18px;
  color: white;
  font-size: 1.3rem;
  box-shadow: var(--shadow);
}

.main-nav {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 28px;
  background: rgba(255,255,255,0.88);
  border: 1px solid rgba(213,224,232,0.8);
  backdrop-filter: blur(8px);
  padding: 14px 22px;
  border-radius: 999px;
  box-shadow: 0 10px 25px rgba(16, 48, 74, 0.06);
}
.main-nav a {
  color: var(--ink);
  font-weight: 600;
  font-size: 0.96rem;
}
.main-nav a.active { color: var(--blue); }
.nav-pill {
  background: var(--navy);
  color: var(--white) !important;
  padding: 10px 16px;
  border-radius: 999px;
}
.nav-pill:hover { text-decoration: none; opacity: 0.94; }
.menu-toggle {
  display: none;
  font-size: 1.5rem;
  background: transparent;
  border: 0;
  color: var(--navy);
}

.hero {
  position: relative;
  min-height: 680px;
  max-width: 1290px;
  margin: 24px auto 0;
  border-radius: 32px;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow);
}
.hero-home {
  background-image: url('https://images.unsplash.com/photo-1666214280391-8ff5bd3c0bf0?auto=format&fit=crop&w=1600&q=80');
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 30, 49, 0.82) 0%, rgba(7, 30, 49, 0.48) 36%, rgba(7, 30, 49, 0.08) 100%);
}
.hero-card {
  position: relative;
  z-index: 1;
  max-width: 620px;
  margin: 96px 0 96px 72px;
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(6px);
  padding: 38px;
  border-radius: 28px;
  color: white;
}
.hero-card h1,
.inner-hero h1,
.section h2,
.study-card h2 {
  font-family: 'Newsreader', serif;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.hero-card h1 {
  font-size: clamp(2.7rem, 4vw, 4.5rem);
  line-height: 0.97;
  margin: 0 0 18px;
}
.hero-card p {
  color: rgba(255,255,255,0.92);
  font-size: 1.08rem;
  line-height: 1.72;
}
.eyebrow, .section-tag {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.8rem;
  font-weight: 800;
  color: #d2f3ff;
  margin-bottom: 14px;
}
.section-tag {
  color: var(--teal);
}
.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 800;
  border: 1px solid transparent;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: linear-gradient(135deg, var(--teal), var(--blue));
  color: white;
  box-shadow: 0 12px 28px rgba(30, 95, 135, 0.28);
}
.btn-secondary {
  background: rgba(255,255,255,0.12);
  color: white;
  border-color: rgba(255,255,255,0.3);
}

.section {
  max-width: 1240px;
  margin: 0 auto;
  padding: 84px 22px;
}
.intro-split {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: start;
}
.intro-split h2,
.alternate-grid h2,
.image-band h2,
.cta-banner h2,
.inner-hero h1,
.policy-copy h2,
.two-column-copy h2,
.split-cta h2 {
  font-size: clamp(2rem, 2.8vw, 3.25rem);
  line-height: 1.02;
  margin: 0 0 16px;
}
.intro-split p,
.alternate-grid p,
.image-band p,
.policy-copy p,
.two-column-copy p,
.study-card p,
.split-cta p,
.contact-form label,
.side-panel p,
.consent-form label,
.inner-hero p {
  color: var(--muted);
  line-height: 1.8;
  font-size: 1rem;
}

.feature-rail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.feature-rail article,
.study-card,
.info-card,
.side-panel,
.contact-form,
.consent-form,
.copy-panel {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 16px 38px rgba(16, 48, 74, 0.06);
}
.feature-rail article {
  padding: 28px;
}
.feature-rail span {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--seafoam);
  color: var(--blue);
  font-weight: 800;
  margin-bottom: 20px;
}
.feature-rail h3,
.info-card h3,
.side-panel h2 {
  margin: 0 0 12px;
  font-size: 1.18rem;
}
.feature-rail p,
.info-card p { color: var(--muted); line-height: 1.7; }

.alternate-grid {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 28px;
  align-items: start;
}
.copy-panel,
.soft {
  padding: 34px;
  background: linear-gradient(180deg, #f5fbff 0%, #ffffff 100%);
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.info-card { padding: 26px; }
.text-link { font-weight: 800; }

.image-band {
  display: grid;
  grid-template-columns: 0.96fr 1.04fr;
  gap: 28px;
  align-items: center;
}
.image-frame {
  border-radius: 30px;
  overflow: hidden;
  box-shadow: var(--shadow);
  min-height: 460px;
}
.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.clean-list {
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}
.clean-list li {
  padding: 14px 0 14px 34px;
  position: relative;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}
.clean-list li::before {
  content: '•';
  position: absolute;
  left: 10px;
  color: var(--teal);
  font-size: 1.6rem;
  line-height: 1;
}

.cta-banner, .split-cta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  background: linear-gradient(135deg, var(--navy), #184b6d);
  color: white;
  border-radius: 30px;
  padding: 42px;
}
.cta-banner h2, .split-cta h2, .cta-banner p, .split-cta p, .cta-banner .section-tag, .split-cta .section-tag {
  color: white;
}

.inner-hero {
  max-width: 1080px;
  margin: 34px auto 0;
  padding: 74px 22px 26px;
}
.inner-hero.narrow { max-width: 980px; }
.inner-hero p:last-child { max-width: 760px; }

.large-card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.study-card { padding: 32px; }
.study-card h2 { font-size: 1.85rem; margin-top: 0; }

.two-column-copy {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 34px;
}

.form-layout, .optin-layout {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: 26px;
  align-items: start;
}
.contact-form, .consent-form, .side-panel {
  padding: 30px;
}
.field-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
label { display: block; font-weight: 700; color: var(--ink); }
input, select, textarea {
  width: 100%;
  margin-top: 8px;
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fbfdfe;
  font: inherit;
  color: var(--ink);
}
textarea { resize: vertical; }
.contact-form > label,
.consent-form > label,
.contact-form button,
.consent-form button { margin-top: 18px; }
.checkbox-stack {
  display: grid;
  gap: 16px;
  margin-top: 10px;
}
.check-card {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 16px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fbfdff;
}
.check-card input {
  margin-top: 3px;
  width: 18px;
  height: 18px;
}
.check-card strong {
  display: block;
  margin-bottom: 8px;
}
.check-card small {
  display: block;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.7;
}
.policy-copy {
  max-width: 980px;
}
.policy-copy h2 {
  font-size: 1.65rem;
  margin-top: 36px;
}
.site-footer {
  margin-top: 48px;
  background: #0d2334;
  color: #dceaf5;
}
.footer-grid {
  max-width: 1240px;
  margin: 0 auto;
  padding: 48px 22px 28px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 30px;
}
.site-footer h3, .site-footer h4 {
  color: white;
  margin-top: 0;
}
.site-footer a { color: #c8e8ff; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 10px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  max-width: 1240px;
  margin: 0 auto;
  padding: 22px;
  color: #c6d9e8;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 112px;
    left: 22px;
    right: 22px;
    z-index: 20;
    border-radius: 24px;
    padding: 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .main-nav.open { display: flex; }
  .menu-toggle { display: inline-block; }
  .hero-card { margin: 54px 22px; max-width: none; }
  .intro-split,
  .feature-rail,
  .alternate-grid,
  .image-band,
  .large-card-grid,
  .two-column-copy,
  .form-layout,
  .optin-layout,
  .footer-grid,
  .card-grid,
  .field-grid {
    grid-template-columns: 1fr;
  }
  .cta-banner, .split-cta { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  .hero { min-height: 620px; border-radius: 22px; }
  .hero-card { padding: 28px; }
  .hero-card h1 { font-size: 2.45rem; }
  .section { padding: 64px 18px; }
  .site-header { padding: 0 18px; }
  .topbar { font-size: 0.84rem; }
  .brand-mark strong { font-size: 1.15rem; }
}