:root {
  --white: #ffffff;
  --navy: #071a3d;
  --navy-2: #102b5c;
  --blue: #173f91;
  --muted: #3e4a62;
  --line: #d9e0ec;
  --soft: #f5f8fc;
  --icon: #eaf1fb;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--white);
  color: var(--navy);
  font-family: Calibri, Aptos, "Segoe UI", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
}

a {
  color: var(--navy-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 63, 145, .35);
}

a:hover { color: var(--blue); border-color: var(--blue); }

.container {
  width: min(1180px, 92%);
  margin: 0 auto;
}

header {
  background: rgba(255,255,255,.98);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
  padding: 20px 0;
}

.brand {
  color: var(--navy);
  font-weight: 800;
  font-size: 20px;
  border: 0;
}

.nav-links {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
  justify-content: flex-end;
  font-size: 15px;
}

.nav-links a {
  color: var(--navy);
  border: 0;
  padding-bottom: 22px;
}

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

.hero {
  padding: 72px 0 64px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 68px;
  align-items: start;
}

.hero-left {
  padding-right: 24px;
}

.hero-right {
  border-left: 1px solid #c9d2e1;
  padding-left: 54px;
}

.eyebrow {
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: .18em;
  font-weight: 800;
  font-size: 13px;
  margin-bottom: 24px;
}

h1, h2, h3 {
  margin-top: 0;
  color: var(--navy);
}

h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(54px, 8vw, 88px);
  line-height: .98;
  letter-spacing: -.05em;
  font-weight: 700;
  margin-bottom: 18px;
}

h2 {
  font-size: clamp(30px, 4.2vw, 48px);
  line-height: 1.08;
  letter-spacing: -.03em;
  font-weight: 800;
  margin-bottom: 22px;
}

h3 {
  font-size: 25px;
  line-height: 1.18;
  font-weight: 800;
  margin-bottom: 9px;
}

p {
  font-size: 18px;
  margin: 0 0 17px;
  color: var(--navy);
}

.tagline {
  color: var(--blue);
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: .19em;
  font-weight: 800;
  line-height: 1.85;
  margin-bottom: 26px;
}

.lead {
  font-size: 22px;
  line-height: 1.42;
  font-weight: 800;
  color: #0b1431;
  margin-bottom: 22px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--navy);
  color: #fff;
  border: 1px solid var(--navy);
  border-radius: 4px;
  padding: 14px 22px;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.button:hover {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}

.framework-title {
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-weight: 800;
  font-size: 14px;
  margin-bottom: 28px;
}

.framework-list {
  display: grid;
  gap: 0;
}

.framework-item {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 24px;
  align-items: center;
  padding: 22px 0;
  border-bottom: 1px solid #cbd4e3;
}

.framework-item:last-child {
  border-bottom: 0;
}

.icon {
  width: 66px;
  height: 66px;
  border-radius: 50%;
  background: var(--icon);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  font-size: 34px;
  line-height: 1;
}

.framework-item h3 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 34px;
  letter-spacing: -.035em;
  margin-bottom: 0;
}

.framework-item p {
  color: #111827;
  font-size: 17px;
  margin: 0;
}

.support {
  border-top: 1px solid var(--line);
  padding: 28px 0 42px;
}

.support .support-title {
  text-align: center;
  color: var(--navy);
  font-size: 16px;
  margin-bottom: 16px;
}

.ack-img {
  display: block;
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
}

.block {
  padding: 70px 0;
  border-top: 1px solid var(--line);
}

.page-title {
  padding: 72px 0 48px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #fff 0%, #f8fbff 100%);
}

.page-title h1 {
  font-family: Calibri, Aptos, "Segoe UI", Arial, sans-serif;
  font-size: clamp(42px, 6vw, 68px);
  letter-spacing: -.04em;
}

.page-title p {
  color: var(--muted);
  max-width: 880px;
  font-size: 22px;
  line-height: 1.38;
}

.section-label {
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: .13em;
  font-weight: 800;
  font-size: 13px;
  margin-bottom: 14px;
}

.two-col {
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: 60px;
  align-items: start;
}

.grid, .explore-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

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

.card, .explore-card {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  min-height: 190px;
}

.dark-card {
  background: var(--navy);
  border: 1px solid var(--navy);
  border-radius: 18px;
  padding: 30px;
  min-height: 200px;
}

.dark-card h3, .dark-card p {
  color: #fff;
}

.dark-card p { opacity: .86; }

.card p, .explore-card p, .list-item p, .muted {
  color: var(--muted);
}

.list-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.list-item:first-child { padding-top: 0; }

.callout {
  background: #edf3ff;
  border-left: 5px solid var(--blue);
  border-radius: 14px;
  padding: 26px;
}

.callout p {
  font-size: 22px;
  line-height: 1.38;
}

footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 38px 0;
  font-size: 14px;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

@media (max-width: 980px) {
  .hero, .two-col, .grid, .grid-four, .explore-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 46px;
    gap: 34px;
  }

  .hero-left { padding-right: 0; }

  .hero-right {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 34px;
  }

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

  .nav-links {
    gap: 12px;
    justify-content: flex-start;
  }

  .nav-links a {
    padding-bottom: 0;
  }
}


/* Final polish: cleaner academic layout */
.section-label {
  display: none;
}

.framework-title,
.eyebrow {
  display: block;
}

.page-title .eyebrow {
  display: block;
}

.block {
  padding: 76px 0;
}

.page-title {
  padding: 78px 0 54px;
}

.card,
.explore-card,
.dark-card {
  border-radius: 16px;
}

.card,
.explore-card {
  background: #ffffff;
}

.block:nth-of-type(even) .card,
.block:nth-of-type(even) .explore-card {
  background: var(--soft);
}

.hero {
  padding-top: 82px;
}

.hero-right {
  padding-left: 62px;
}

.framework-title {
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-weight: 800;
  font-size: 14px;
  margin-bottom: 28px;
}

.support {
  padding-top: 34px;
}

.support-title {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-title p {
  max-width: 920px;
}

.clean-intro {
  max-width: 880px;
}

.section-rule {
  border-top: 1px solid var(--line);
}

@media (max-width: 980px) {
  .hero-right {
    padding-left: 0;
  }
}

/* Column balance fix for homepage hero */
.hero {
  grid-template-columns: 1.35fr .65fr;
  gap: 54px;
}

.hero-left {
  padding-right: 12px;
}

.hero-right {
  padding-left: 42px;
}

.tagline {
  max-width: 820px;
  line-height: 1.65;
  letter-spacing: .15em;
  font-size: 14px;
}

.framework-item {
  grid-template-columns: 66px 1fr;
  gap: 18px;
  padding: 18px 0;
}

.icon {
  width: 54px;
  height: 54px;
  font-size: 28px;
}

.framework-item h3 {
  font-size: 29px;
}

.framework-item p {
  font-size: 16px;
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .tagline {
    max-width: 100%;
  }
}