:root {
  --ink: #0b1f3f;
  --muted: #5d6f8a;
  --line: #d8e7f5;
  --paper: #f4f9ff;
  --white: #ffffff;
  --un-blue: #009edb;
  --deep-blue: #004b93;
  --navy: #06366d;
  --sky: #dff3ff;
  --silver: #eef5fb;
  --shadow: 0 22px 60px rgba(6, 54, 109, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, Arial, sans-serif;
  letter-spacing: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 82px;
  padding: 12px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 286px;
}

.brand img {
  width: 54px;
  height: 54px;
  object-fit: contain;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.05;
}

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

.brand small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: #25486f;
  font-size: 0.93rem;
  font-weight: 700;
}

.header-action,
.primary-button,
.secondary-button,
.interest-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 8px;
  font-weight: 800;
}

.header-action,
.primary-button,
.interest-form button {
  background: var(--deep-blue);
  color: var(--white);
}

.secondary-button {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.62);
}

.hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: calc(100vh - 82px);
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(0, 75, 147, 0.88), rgba(0, 158, 219, 0.58)),
    url("GDI/GDI Cover Image-Needs editing.png") center/cover;
  transform: scale(1.02);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 78% 44%, rgba(255, 255, 255, 0.24), transparent 28%),
    linear-gradient(90deg, rgba(4, 32, 67, 0.92), rgba(4, 32, 67, 0.58) 56%, rgba(4, 32, 67, 0.18));
}

.hero-content {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(250px, 340px);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 6vh 0 7vh;
  color: var(--white);
}

.hero-copy-block {
  max-width: 760px;
}

.hero-logo-card {
  margin: 0;
  padding: clamp(18px, 3vw, 30px);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.58);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-logo-card img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
}

.eyebrow,
.section-kicker {
  margin: 0 0 16px;
  color: var(--un-blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero .eyebrow,
.contact .section-kicker {
  color: #9fe4ff;
}

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

h1,
h2 {
  font-family: "Libre Baskerville", Georgia, serif;
  letter-spacing: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 20px;
  font-size: clamp(2.45rem, 5.5vw, 5rem);
  line-height: 0.98;
}

.hero-copy {
  max-width: 690px;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1.06rem, 2vw, 1.35rem);
  line-height: 1.58;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

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

.signal-strip div {
  min-height: 116px;
  padding: 28px clamp(18px, 3vw, 34px);
  border-right: 1px solid var(--line);
}

.signal-strip span {
  display: block;
  margin-bottom: 10px;
  color: var(--un-blue);
  font-weight: 800;
}

.signal-strip strong {
  display: block;
  color: var(--navy);
  font-size: clamp(1rem, 2vw, 1.3rem);
}

.section {
  padding: clamp(64px, 9vw, 116px) clamp(18px, 5vw, 68px);
}

.intro-grid,
.section-heading,
.lab,
.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}

.intro h2,
.section-heading h2,
.lab h2,
.contact h2 {
  margin-bottom: 0;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.04;
}

.intro p,
.section-heading p,
.lab p,
.contact p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.programs {
  background: var(--white);
}

.program-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 34px;
}

.program-card,
.scenario-grid article {
  min-height: 260px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fcff;
}

.program-card.featured {
  background: var(--deep-blue);
  color: var(--white);
  box-shadow: var(--shadow);
}

.program-card span,
.scenario-grid span {
  display: inline-block;
  margin-bottom: 42px;
  color: var(--un-blue);
  font-weight: 800;
  font-size: 0.78rem;
  text-transform: uppercase;
}

.program-card.featured span {
  color: #aee8ff;
}

.program-card p,
.scenario-grid p {
  color: var(--muted);
  line-height: 1.6;
}

.program-card.featured p {
  color: rgba(255, 255, 255, 0.82);
}

.curriculum-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 34px;
}

.module {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 10px 14px;
  min-height: 150px;
  padding: 18px;
  text-align: left;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.module:hover,
.module.active {
  transform: translateY(-2px);
  border-color: rgba(0, 158, 219, 0.55);
  box-shadow: 0 14px 30px rgba(6, 54, 109, 0.1);
}

.module span {
  grid-row: span 2;
  color: var(--un-blue);
  font-weight: 800;
}

.module strong {
  font-size: 1rem;
}

.module small {
  grid-column: 2;
  color: var(--muted);
  line-height: 1.45;
}

.lab {
  background: var(--sky);
}

.scenario-grid {
  display: grid;
  gap: 14px;
}

.scenario-grid article {
  min-height: 180px;
  background: var(--white);
}

.scenario-grid span {
  margin-bottom: 22px;
}

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

.contact-panel {
  align-items: stretch;
}

.contact p {
  color: rgba(255, 255, 255, 0.78);
}

.interest-form {
  display: grid;
  gap: 14px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
}

.interest-form label {
  display: grid;
  gap: 8px;
  color: rgba(255, 255, 255, 0.82);
  font-weight: 700;
}

.interest-form input,
.interest-form select {
  width: 100%;
  min-height: 46px;
  padding: 0 12px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid transparent;
  border-radius: 8px;
  font: inherit;
}

.interest-form button {
  width: 100%;
  border: 0;
  cursor: pointer;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(280px, 1.15fr) minmax(320px, 1fr);
  gap: clamp(28px, 5vw, 70px);
  padding: 48px clamp(18px, 5vw, 68px) 28px;
  background: #031f42;
  color: rgba(255, 255, 255, 0.78);
}

.site-footer p,
.site-footer h2 {
  margin: 0;
}

.footer-main {
  display: grid;
  gap: 22px;
  max-width: 620px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-mark {
  display: inline-flex;
  flex: 0 0 58px;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  font: 800 0.95rem/1 Inter, Arial, sans-serif;
}

.footer-brand strong {
  display: block;
  color: var(--white);
  font-size: 1.1rem;
}

.footer-brand p,
.footer-main > p,
.footer-bottom p {
  line-height: 1.65;
}

.footer-socials {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-socials a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 13px;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  font-weight: 800;
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.footer-columns div {
  display: grid;
  align-content: start;
  gap: 10px;
}

.footer-columns h2 {
  color: var(--white);
  font: 800 0.78rem/1.2 Inter, Arial, sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-columns a,
.footer-columns span {
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.45;
}

.footer-columns a:hover,
.footer-socials a:hover {
  color: var(--white);
}

.footer-bottom {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 0.88rem;
}

.legal-page {
  background: var(--white);
}

.legal-content {
  width: min(860px, calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(56px, 8vw, 96px) 0;
}

.legal-content h1 {
  margin-bottom: 14px;
  color: var(--navy);
  font-size: clamp(2.4rem, 6vw, 4.8rem);
}

.legal-content section {
  padding: 30px 0;
  border-top: 1px solid var(--line);
}

.legal-content h2 {
  margin-bottom: 12px;
  color: var(--navy);
  font: 800 1.1rem/1.25 Inter, Arial, sans-serif;
}

.legal-content p {
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.75;
}

.legal-content a {
  color: var(--deep-blue);
  font-weight: 800;
}

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

  .hero-content {
    grid-template-columns: 1fr;
    align-items: end;
  }

  .hero-logo-card {
    width: min(320px, 80vw);
  }

  .signal-strip,
  .program-grid,
  .curriculum-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .intro-grid,
  .section-heading,
  .lab,
  .contact-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1100px) {
  .site-footer {
    grid-template-columns: 1fr;
  }

  .footer-main {
    max-width: none;
  }
}

@media (max-width: 640px) {
  .brand {
    min-width: 0;
  }

  .brand img {
    width: 48px;
    height: 48px;
  }

  .brand small {
    display: none;
  }

  .hero {
    min-height: 760px;
  }

  .hero-content {
    padding: 54px 0 82px;
  }

  .signal-strip,
  .program-grid,
  .curriculum-list {
    grid-template-columns: 1fr;
  }

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

  .footer-bottom {
    flex-direction: column;
  }
}