:root {
  --bg: #f6f9ff;
  --surface: rgba(255, 255, 255, 0.76);
  --surface-strong: #ffffff;
  --line: rgba(18, 63, 161, 0.12);
  --text: #0e2248;
  --muted: #4c618f;
  --accent: #0a66ff;
  --accent-deep: #0a2b86;
  --accent-soft: #d9e8ff;
  --glow: rgba(10, 102, 255, 0.18);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --shadow: 0 24px 60px rgba(28, 74, 158, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: "Aptos", "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(121, 173, 255, 0.26), transparent 28%),
    radial-gradient(circle at 85% 10%, rgba(117, 205, 255, 0.22), transparent 24%),
    linear-gradient(180deg, #fcfdff 0%, var(--bg) 48%, #edf4ff 100%);
}

a {
  color: inherit;
}

.page-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 64px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 22px;
  position: sticky;
  top: 12px;
  z-index: 10;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 40px rgba(20, 61, 142, 0.08);
}

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

.brand-lockup h1,
.brand-lockup p {
  margin: 0;
}

.brand-lockup h1 {
  font-size: 1rem;
}

.brand-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.brand-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(145deg, #104fc8, #071f66);
  color: #fff;
  font-weight: 800;
  font-size: 1.2rem;
  box-shadow: 0 18px 38px rgba(10, 49, 136, 0.28);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.site-nav a {
  text-decoration: none;
  font-size: 0.95rem;
  color: var(--muted);
}

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

.hero,
.content-block,
.cards-section,
.diagram-section,
.timeline-section,
.study-section,
.quote-section,
.sources-section {
  margin-top: 28px;
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
  align-items: stretch;
}

.hero-copy,
.hero-visual,
.content-block,
.info-card,
.diagram-section,
.timeline-section,
.study-panel,
.quote-section,
.sources-section {
  border: 1px solid rgba(255, 255, 255, 0.7);
  background: var(--surface);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 42px;
  border-radius: var(--radius-lg);
}

.section-tag {
  margin: 0 0 14px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.hero-copy h2 {
  margin: 0;
  max-width: 12ch;
  font-size: clamp(2.8rem, 6vw, 5.4rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.hero-copy h2 span {
  color: var(--accent);
}

.hero-text {
  max-width: 31rem;
  font-size: 1.08rem;
  line-height: 1.7;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin: 30px 0 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, color 180ms ease;
}

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

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, #0a66ff, #0b2f91);
  box-shadow: 0 20px 40px rgba(10, 75, 201, 0.28);
}

.button-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(10, 102, 255, 0.16);
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
}

.hero-facts div {
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.hero-facts dt {
  margin-bottom: 8px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.hero-facts dd {
  margin: 0;
  font-weight: 700;
}

.hero-visual {
  position: relative;
  min-height: 640px;
  overflow: hidden;
  border-radius: 36px;
  background:
    radial-gradient(circle at center, rgba(66, 133, 255, 0.2), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(234, 242, 255, 0.9));
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(18, 63, 161, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 63, 161, 0.08) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 90%);
}

.core-node {
  position: absolute;
  inset: 50%;
  width: 124px;
  height: 124px;
  margin: -62px 0 0 -62px;
  display: grid;
  place-items: center;
  border-radius: 34px;
  background: linear-gradient(145deg, #0e69ff, #081f6b);
  color: #fff;
  font-size: 3rem;
  font-weight: 800;
  box-shadow: 0 0 0 18px rgba(255, 255, 255, 0.48), 0 28px 70px rgba(6, 58, 173, 0.35);
}

.core-node::before,
.core-node::after {
  content: "";
  position: absolute;
  inset: -110px;
  border-radius: 50%;
  border: 1px solid rgba(10, 102, 255, 0.15);
}

.core-node::after {
  inset: -180px;
}

.orbit {
  position: absolute;
  width: 190px;
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(10, 102, 255, 0.14);
  box-shadow: 0 20px 42px rgba(28, 74, 158, 0.12);
}

.orbit::before {
  content: "";
  position: absolute;
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, rgba(10, 102, 255, 0.12), rgba(10, 102, 255, 0.8));
}

.orbit strong,
.orbit span {
  display: block;
}

.orbit strong {
  margin-bottom: 6px;
  font-size: 1.02rem;
}

.orbit span {
  color: var(--muted);
  line-height: 1.5;
}

.orbit-government {
  top: 44px;
  left: 38px;
}

.orbit-government::before {
  right: -63px;
  bottom: 24px;
  transform: rotate(24deg);
}

.orbit-health {
  top: 62px;
  right: 34px;
}

.orbit-health::before {
  left: -64px;
  bottom: 24px;
  transform: rotate(-24deg);
}

.orbit-education {
  bottom: 48px;
  left: 72px;
}

.orbit-education::before {
  right: -68px;
  top: 34px;
  transform: rotate(-20deg);
}

.orbit-citizen {
  left: 18px;
  top: 50%;
  margin-top: -64px;
}

.orbit-citizen::before {
  right: -78px;
  top: 50%;
}

.orbit-business {
  bottom: 62px;
  right: 44px;
}

.orbit-business::before {
  left: -68px;
  top: 28px;
  transform: rotate(18deg);
}

.split-block {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 28px;
  padding: 34px;
  border-radius: var(--radius-lg);
}

.split-block h3,
.content-block h3,
.diagram-copy h3,
.timeline-section h3,
.study-panel h3,
.sources-section h3 {
  margin: 0;
  font-size: clamp(1.7rem, 2vw, 2.4rem);
  letter-spacing: -0.04em;
}

.split-block p,
.content-block p,
.info-card p,
.diagram-card p,
.timeline-list p,
.study-panel li,
.quote-section p,
.sources-list a {
  color: var(--muted);
  line-height: 1.75;
}

.cards-section {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  gap: 20px;
}

.info-card {
  min-height: 250px;
  padding: 28px;
  border-radius: var(--radius-md);
}

.feature-card {
  background:
    radial-gradient(circle at top left, rgba(86, 145, 255, 0.22), transparent 38%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(226, 238, 255, 0.86));
}

.info-card h3 {
  margin: 0 0 12px;
  font-size: 1.45rem;
  letter-spacing: -0.03em;
}

.card-number {
  display: inline-flex;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-weight: 800;
}

.content-block {
  padding: 34px;
  border-radius: var(--radius-lg);
}

.flow-grid,
.diagram-grid,
.study-section {
  display: grid;
  gap: 18px;
}

.flow-grid {
  margin-top: 24px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.flow-card,
.diagram-card {
  padding: 24px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(10, 102, 255, 0.1);
}

.flow-card span {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  border-radius: 999px;
  background: linear-gradient(145deg, #0a66ff, #0a2b86);
  color: white;
  font-weight: 800;
}

.flow-card h4,
.diagram-card h4 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.diagram-section {
  padding: 34px;
  border-radius: var(--radius-lg);
}

.diagram-grid {
  margin-top: 24px;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.diagram-card {
  grid-column: span 2;
}

.diagram-card-wide {
  grid-column: span 2;
  background: linear-gradient(180deg, rgba(222, 237, 255, 0.92), rgba(255, 255, 255, 0.82));
}

.timeline-section {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 30px;
  padding: 34px;
  border-radius: var(--radius-lg);
}

.timeline-list {
  display: grid;
  gap: 14px;
}

.timeline-list article {
  display: grid;
  grid-template-columns: 82px 1fr;
  gap: 18px;
  align-items: start;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.timeline-list article:first-child {
  padding-top: 0;
  border-top: 0;
}

.timeline-list span {
  display: inline-flex;
  justify-content: center;
  padding: 8px 12px;
  border-radius: 999px;
  font-weight: 800;
  background: var(--accent-soft);
  color: var(--accent-deep);
}

.timeline-list p {
  margin: 0;
}

.study-section {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.study-panel {
  padding: 32px;
  border-radius: var(--radius-lg);
}

.study-panel ul {
  margin: 20px 0 0;
  padding-left: 20px;
}

.study-panel li + li {
  margin-top: 12px;
}

.accent-panel {
  background:
    radial-gradient(circle at top right, rgba(78, 162, 255, 0.26), transparent 36%),
    linear-gradient(180deg, rgba(240, 247, 255, 0.92), rgba(255, 255, 255, 0.82));
}

.quote-section {
  padding: 42px;
  border-radius: var(--radius-lg);
  text-align: center;
}

.quote-section blockquote {
  max-width: 20ch;
  margin: 0 auto 18px;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.05em;
}

.quote-section p {
  max-width: 40rem;
  margin: 0 auto;
}

.sources-section {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 26px;
  padding: 34px;
  border-radius: var(--radius-lg);
  margin-bottom: 28px;
}

.sources-list {
  display: grid;
  gap: 12px;
}

.sources-list a {
  display: block;
  padding: 16px 18px;
  text-decoration: none;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(10, 102, 255, 0.1);
  transition: transform 180ms ease, border-color 180ms ease;
}

.sources-list a:hover {
  transform: translateY(-1px);
  border-color: rgba(10, 102, 255, 0.28);
}

@media (max-width: 1100px) {
  .hero,
  .split-block,
  .timeline-section,
  .sources-section,
  .cards-section,
  .study-section {
    grid-template-columns: 1fr;
  }

  .flow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .diagram-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .diagram-card,
  .diagram-card-wide {
    grid-column: span 1;
  }

  .hero-copy h2 {
    max-width: 10ch;
  }
}

@media (max-width: 820px) {
  .page-shell {
    width: min(100% - 20px, 1180px);
    padding-top: 12px;
  }

  .site-header {
    position: static;
    padding: 18px;
    border-radius: 28px;
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    flex-wrap: wrap;
    gap: 14px 18px;
  }

  .hero-copy,
  .hero-visual,
  .content-block,
  .diagram-section,
  .timeline-section,
  .study-panel,
  .quote-section,
  .sources-section {
    padding: 24px;
    border-radius: 24px;
  }

  .hero-visual {
    min-height: 520px;
  }

  .hero-facts,
  .flow-grid {
    grid-template-columns: 1fr;
  }

  .orbit {
    width: 158px;
    padding: 14px;
    font-size: 0.9rem;
  }

  .orbit-government {
    top: 28px;
    left: 20px;
  }

  .orbit-health {
    top: 28px;
    right: 20px;
  }

  .orbit-citizen {
    left: 12px;
    top: auto;
    bottom: 150px;
    margin-top: 0;
  }

  .orbit-education {
    bottom: 28px;
    left: 24px;
  }

  .orbit-business {
    bottom: 28px;
    right: 24px;
  }

  .timeline-list article {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .quote-section blockquote {
    max-width: 12ch;
  }
}

@media (max-width: 560px) {
  .hero-copy h2 {
    max-width: none;
    font-size: 2.7rem;
  }

  .hero-text {
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 640px;
  }

  .core-node {
    width: 92px;
    height: 92px;
    margin: -46px 0 0 -46px;
    font-size: 2.25rem;
  }

  .orbit {
    width: 132px;
    padding: 12px;
  }

  .orbit::before {
    display: none;
  }

  .orbit strong {
    font-size: 0.92rem;
  }

  .orbit span {
    font-size: 0.8rem;
    line-height: 1.35;
  }
}