:root {
  --bg: #f4f7fb;
  --bg-strong: #edf2fa;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: rgba(255, 255, 255, 0.94);
  --surface-deep: linear-gradient(155deg, #10233c 0%, #0e2d52 55%, #16457d 100%);
  --line: rgba(20, 44, 72, 0.12);
  --line-strong: rgba(20, 44, 72, 0.2);
  --text: #08111d;
  --muted: #5b6878;
  --brand: #2b78da;
  --brand-strong: #1c5baa;
  --brand-soft: rgba(43, 120, 218, 0.14);
  --accent: #f1b24a;
  --accent-soft: rgba(241, 178, 74, 0.18);
  --shadow: 0 30px 70px rgba(10, 24, 43, 0.08);
  --radius: 24px;
  --radius-small: 16px;
  --container: min(1180px, calc(100vw - 40px));
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(43, 120, 218, 0.14), transparent 34%),
    radial-gradient(circle at top right, rgba(241, 178, 74, 0.12), transparent 28%),
    linear-gradient(180deg, #f7f9fc 0%, #eef3f8 100%);
  color: var(--text);
  font-family: "Manrope", sans-serif;
  line-height: 1.68;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(20, 44, 72, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 44, 72, 0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 90%);
  opacity: 0.45;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.site-chrome {
  min-height: 100vh;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.narrow {
  max-width: 780px;
}

.section {
  padding: 44px 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 18px 0 0;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  background: rgba(247, 250, 253, 0.8);
  backdrop-filter: blur(16px);
  box-shadow: 0 16px 40px rgba(7, 16, 28, 0.05);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand img {
  width: 46px;
  height: 46px;
  object-fit: contain;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-copy strong {
  font-family: "Outfit", sans-serif;
  font-size: 0.98rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.brand-copy span {
  color: var(--muted);
  font-size: 0.82rem;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 18px;
}

.site-nav a {
  position: relative;
  color: var(--muted);
  font-size: 0.96rem;
  font-weight: 500;
}

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

.site-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -10px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--text);
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle span + span {
  margin-top: 5px;
}

.hero {
  padding-top: 62px;
}

.hero-grid,
.split-panel,
.footer-grid,
.contact-grid {
  display: grid;
  gap: 28px;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
  align-items: stretch;
}

.hero-copy,
.hero-visual,
.panel,
.feature-card,
.audience-card,
.evidence-card,
.stat-card,
.case-card,
.architecture-card,
.principle-card,
.faq-card,
.contact-card,
.boundary-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 34px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--brand-strong);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Outfit", sans-serif;
  font-weight: 400;
  line-height: 1.02;
}

h1 {
  font-size: clamp(2.8rem, 6vw, 5.4rem);
  font-weight: 500;
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 400;
  letter-spacing: -0.03em;
}

h3 {
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 500;
  letter-spacing: -0.02em;
}

.hero-lead,
.page-lead {
  margin: 22px 0 0;
  color: var(--text);
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.75;
}

.hero-support,
.section-heading p,
.panel p,
.feature-card p,
.audience-card p,
.evidence-card p,
.architecture-card p,
.principle-card p,
.faq-card p,
.contact-card p,
.boundary-card p,
.footer-copy,
.panel-note {
  color: var(--muted);
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand) 0%, #1c5baa 100%);
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 30px rgba(28, 91, 170, 0.25);
}

.button-ghost {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.7);
  color: var(--text);
}

.button-small {
  min-height: 42px;
  padding: 0 16px;
  font-size: 0.92rem;
}

.signal-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.signal-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-strong);
}

.signal-card strong {
  display: block;
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.4;
}

.signal-label,
.evidence-tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-strong);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-visual {
  position: relative;
  overflow: hidden;
  min-height: 540px;
  padding: 26px;
}

.constellation-panel {
  position: relative;
  height: 100%;
  min-height: 486px;
  border-radius: calc(var(--radius) - 4px);
  background:
    radial-gradient(circle at 30% 20%, rgba(43, 120, 218, 0.3), transparent 32%),
    radial-gradient(circle at 70% 10%, rgba(241, 178, 74, 0.28), transparent 26%),
    linear-gradient(180deg, rgba(8, 17, 29, 0.02) 0%, rgba(8, 17, 29, 0.08) 100%);
  border: 1px solid rgba(255, 255, 255, 0.5);
  overflow: hidden;
}

.panel-orbit {
  position: absolute;
  border: 1px solid rgba(43, 120, 218, 0.22);
  border-radius: 999px;
}

.orbit-one {
  inset: 14% 12%;
}

.orbit-two {
  inset: 26% 22%;
  border-color: rgba(241, 178, 74, 0.22);
}

.constellation-card {
  position: absolute;
  width: min(220px, calc(100% - 44px));
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.52);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.66);
  backdrop-filter: blur(12px);
}

.constellation-card span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.constellation-card strong {
  font-size: 0.98rem;
  line-height: 1.45;
}

.card-a {
  top: 48px;
  left: 36px;
}

.card-b {
  top: 156px;
  right: 28px;
}

.card-c {
  top: 68%;
  left: 46px;
  bottom: auto;
  transform: translateY(-50%);
}

.anchor-node {
  position: absolute;
  top: 50%;
  left: 50%;
  display: grid;
  place-items: center;
  width: 132px;
  aspect-ratio: 1;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background:
    linear-gradient(135deg, rgba(43, 120, 218, 0.92), rgba(28, 91, 170, 0.94));
  color: #fff;
  box-shadow:
    0 24px 40px rgba(28, 91, 170, 0.32),
    inset 0 0 0 10px rgba(255, 255, 255, 0.12);
}

.anchor-node span {
  font-family: "Outfit", sans-serif;
  font-size: 1.55rem;
  font-weight: 500;
  letter-spacing: 0.22em;
}

.micro-copy {
  position: absolute;
  left: 50%;
  bottom: 26px;
  width: min(240px, calc(100% - 96px));
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.52);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.62);
  backdrop-filter: blur(12px);
  box-shadow: 0 18px 30px rgba(10, 24, 43, 0.08);
  color: var(--muted);
  text-align: center;
  transform: translateX(-50%);
}

.micro-copy span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.micro-copy strong {
  display: block;
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.45;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 22px;
}

.feature-grid,
.audience-grid,
.evidence-grid,
.stats-grid,
.case-grid,
.architecture-grid,
.principles-grid,
.faq-list,
.boundary-grid {
  display: grid;
  gap: 18px;
}

.feature-grid,
.audience-grid,
.evidence-grid,
.principles-grid,
.contact-grid,
.boundary-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stats-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.architecture-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

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

.feature-card,
.audience-card,
.evidence-card,
.stat-card,
.case-card,
.architecture-card,
.principle-card,
.faq-card,
.contact-card,
.boundary-card {
  padding: 24px;
}

.stat-card strong {
  display: block;
  font-family: "Outfit", sans-serif;
  font-size: clamp(2rem, 4vw, 2.9rem);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1;
}

.stat-card span {
  display: block;
  margin-top: 12px;
  font-size: 0.98rem;
  font-weight: 600;
}

.stat-card p {
  margin: 10px 0 0;
  color: var(--muted);
}

.evidence-hero-note {
  max-width: 58ch;
}

.icon-frame {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: 16px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(43, 120, 218, 0.12), rgba(241, 178, 74, 0.12));
}

.icon-frame svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: var(--brand-strong);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

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

.panel {
  padding: 28px;
}

.panel-deep {
  background: var(--surface-deep);
  border-color: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.panel-deep .eyebrow,
.panel-deep .panel-note,
.panel-deep p,
.panel-deep li {
  color: rgba(230, 238, 247, 0.82);
}

.detail-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 22px 0 0;
  list-style: none;
}

.detail-list li {
  position: relative;
  padding-left: 24px;
}

.detail-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  transform: translateY(-50%);
}

.detail-list-tight {
  gap: 8px;
}

.text-link {
  display: inline-flex;
  margin-top: 24px;
  color: var(--brand-strong);
  font-weight: 600;
}

.evidence-brief-note {
  max-width: 720px;
  margin-top: 18px;
  padding: 0 2px;
}

.evidence-brief-note p {
  margin: 0;
  color: var(--muted);
}

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

.page-hero {
  padding-top: 66px;
}

.architecture-card {
  min-height: 210px;
}

.step-number,
.timeline-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  margin-bottom: 18px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--brand-soft), var(--accent-soft));
  color: var(--brand-strong);
  font-family: "Outfit", sans-serif;
  font-weight: 500;
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.75);
  box-shadow: var(--shadow);
}

.case-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: start;
}

.case-head h3 {
  margin-top: 14px;
}

.case-kicker {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  white-space: nowrap;
}

.case-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.case-metric {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-strong);
}

.case-metric strong {
  display: block;
  font-family: "Outfit", sans-serif;
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
}

.case-metric span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.88rem;
}

.case-list {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.case-list li {
  position: relative;
  padding-left: 24px;
  color: var(--muted);
}

.case-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  transform: translateY(-50%);
}

.evidence-grid-spacious {
  margin-top: 18px;
}

.faq-wrap {
  display: grid;
  gap: 18px;
}

.final-cta {
  padding-bottom: 70px;
}

.cta-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 22px;
  align-items: center;
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 28px;
  background:
    radial-gradient(circle at left, rgba(43, 120, 218, 0.16), transparent 30%),
    radial-gradient(circle at right, rgba(241, 178, 74, 0.12), transparent 22%),
    rgba(250, 252, 255, 0.86);
  box-shadow: var(--shadow);
}

.site-footer {
  padding: 0 0 36px;
}

.footer-grid {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  padding: 26px 0 0;
  border-top: 1px solid var(--line);
}

.brand-footer img {
  width: 38px;
  height: 38px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--muted);
}

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

.contact-split {
  align-items: start;
}

.contact-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.contact-form-panel {
  padding-bottom: 30px;
}

.contact-primary-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.contact-note {
  max-width: 56ch;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.contact-inline-link {
  color: inherit;
}

.contact-inline-link:hover {
  color: rgba(255, 255, 255, 0.9);
}

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

code {
  padding: 0.16em 0.46em;
  border-radius: 8px;
  background: rgba(16, 35, 60, 0.08);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.92em;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1120px) {
  .hero-grid,
  .split-panel,
  .cta-panel,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .audience-grid,
  .evidence-grid,
  .stats-grid,
  .case-grid,
  .principles-grid,
  .contact-grid,
  .contact-grid-dual,
  .boundary-grid,
  .architecture-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-visual {
    min-height: 500px;
  }
}

@media (max-width: 820px) {
  .site-header {
    padding-top: 12px;
  }

  .nav-wrap {
    position: relative;
    border-radius: 28px;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: rgba(249, 252, 255, 0.94);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 8px 0;
  }

  .site-nav a.is-active::after {
    bottom: 0;
  }

  .hero {
    padding-top: 42px;
  }

  .hero-copy,
  .hero-visual,
  .panel,
  .feature-card,
  .audience-card,
  .evidence-card,
  .stat-card,
  .case-card,
  .architecture-card,
  .principle-card,
  .faq-card,
  .contact-card,
  .boundary-card,
  .timeline-item,
  .cta-panel {
    padding: 22px;
  }

  .signal-row,
  .faq-list,
  .feature-grid,
  .audience-grid,
  .evidence-grid,
  .stats-grid,
  .case-grid,
  .principles-grid,
  .contact-grid,
  .contact-grid-dual,
  .boundary-grid,
  .architecture-grid {
    grid-template-columns: 1fr;
  }

  .case-metrics {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 470px;
  }

  .anchor-node {
    width: 112px;
  }

  .card-a,
  .card-c {
    left: 18px;
  }

  .card-b {
    right: 18px;
  }
}

@media (max-width: 560px) {
  :root {
    --container: min(100vw - 24px, 100%);
  }

  .section {
    padding: 34px 0;
  }

  h1 {
    font-size: clamp(2.4rem, 12vw, 4rem);
  }

  h2 {
    font-size: clamp(1.7rem, 8vw, 2.8rem);
  }

  .case-head {
    flex-direction: column;
  }

  .case-kicker {
    white-space: normal;
  }

  .hero-copy {
    padding: 20px;
  }

  .hero-visual {
    padding: 18px;
    min-height: 420px;
  }

  .constellation-card {
    width: calc(100% - 36px);
  }

  .card-a {
    top: 24px;
  }

  .card-b {
    top: 138px;
  }

  .card-c {
    top: 66%;
  }

  .micro-copy {
    width: calc(100% - 56px);
    bottom: 18px;
  }
}