:root {
  --bg: #f3f8ff;
  --surface: rgba(255, 255, 255, 0.84);
  --surface-strong: #ffffff;
  --ink: #1e2634;
  --muted: #667383;
  --blue: #2f86d0;
  --blue-dark: #204080;
  --blue-soft: #dff0ff;
  --green: #7aa35b;
  --magenta: #cb0095;
  --line: rgba(47, 134, 208, 0.2);
  --shadow: 0 24px 80px rgba(32, 64, 128, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@keyframes riseFade {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleFade {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.985);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes lineGrow {
  from {
    transform: scaleX(0);
  }

  to {
    transform: scaleX(1);
  }
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 12%, rgba(47, 134, 208, 0.14), transparent 28rem),
    radial-gradient(circle at 90% 2%, rgba(203, 0, 149, 0.08), transparent 24rem),
    linear-gradient(180deg, #fff 0%, var(--bg) 36%, #fff 100%);
  font-family: "Open Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

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

.site-header {
  position: absolute;
  top: 0;
  left: 50%;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 40px));
  margin: 0;
  padding: 24px 0;
  transform: translateX(-50%);
}

.brand {
  color: var(--ink);
  font-family: Montserrat, "Open Sans", sans-serif;
  font-weight: 800;
  letter-spacing: 0;
}

.nav a {
  color: var(--blue-dark);
  font-family: Montserrat, "Open Sans", sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

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

.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  min-height: auto;
  width: 100%;
  margin: 0;
  padding: 128px max(40px, calc((100vw - 1180px) / 2)) 84px;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 24%, rgba(255, 255, 255, 0.92), transparent 18rem),
    radial-gradient(circle at 68% 54%, rgba(47, 134, 208, 0.16), transparent 34rem),
    linear-gradient(115deg, #f9fcff 0%, #eaf5ff 46%, #f7fbff 100%);
}

.hero-copy {
  position: relative;
  z-index: 1;
  max-width: 880px;
  animation: riseFade 720ms ease both;
}

.eyebrow,
.section-kicker {
  margin: 0 0 18px;
  color: var(--blue);
  font-family: Montserrat, "Open Sans", sans-serif;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero .eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
}

.hero .eyebrow::before {
  content: "";
  width: 30px;
  height: 2px;
  border-radius: 999px;
  background: var(--blue);
  transform-origin: left center;
  animation: lineGrow 560ms ease 180ms both;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--ink);
  font-family: Montserrat, "Open Sans", sans-serif;
  letter-spacing: 0;
}

h1 {
  color: var(--blue-dark);
  font-family: Poppins, Montserrat, sans-serif;
  font-size: clamp(54px, 6.5vw, 104px);
  font-weight: 800;
  line-height: 0.94;
  text-transform: uppercase;
}

.hero-lede {
  max-width: 720px;
  margin: 28px 0 0;
  color: #3f4d5d;
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.62;
}

.hero-checklist {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 760px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.hero-checklist li {
  position: relative;
  padding: 9px 14px 9px 34px;
  border: 1px solid rgba(47, 134, 208, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: #526172;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 12px 36px rgba(32, 64, 128, 0.08);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.hero-checklist li::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 14px;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: #69e0bf;
  transform: translateY(-50%);
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0;
  width: 100%;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
  animation: riseFade 720ms ease 220ms both;
}

.hero-meta div {
  min-height: 124px;
  padding: 20px;
  border-right: 1px solid var(--line);
  transition: background 180ms ease;
}

.hero-meta div:last-child {
  border-right: 0;
}

.hero-meta span {
  display: block;
  margin-bottom: 7px;
  color: #7d8b9d;
  font-family: Montserrat, "Open Sans", sans-serif;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-meta strong {
  display: block;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.45;
}

.hero-art {
  position: relative;
  justify-self: center;
  width: min(980px, 100%);
  margin: 6px auto 0;
  animation: scaleFade 820ms cubic-bezier(0.22, 1, 0.36, 1) 120ms both;
}

.hero-art::before {
  content: "";
  position: absolute;
  right: -2%;
  bottom: -3%;
  z-index: -1;
  width: 52%;
  aspect-ratio: 1;
  border-radius: 999px;
  background:
    radial-gradient(circle at 50% 50%, rgba(47, 134, 208, 0.12), transparent 62%),
    radial-gradient(circle at 68% 70%, rgba(203, 0, 149, 0.06), transparent 68%);
  filter: blur(18px);
}

.hero-art img {
  width: 100%;
  border-radius: 0;
  box-shadow: none;
}

.hero-context {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 22px;
  align-items: stretch;
  margin-top: -6px;
  animation: riseFade 720ms ease 320ms both;
}

.hero-context > div,
.hero-context dl {
  margin: 0;
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: var(--shadow);
}

.hero-context span {
  display: block;
  margin-bottom: 14px;
  color: var(--ink);
  font-family: Montserrat, "Open Sans", sans-serif;
  font-size: 18px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero-context p {
  max-width: 640px;
  margin: 0;
  color: #647283;
  font-size: 20px;
  line-height: 1.62;
}

.hero-context dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  align-items: center;
}

.hero-context dl > div {
  min-width: 0;
  text-align: center;
}

.hero-context dt {
  color: var(--green);
  font-family: Poppins, Montserrat, sans-serif;
  font-size: clamp(24px, 2.2vw, 34px);
  font-weight: 800;
  line-height: 1;
}

.hero-context dd {
  margin: 8px 0 0;
  color: #647283;
  font-size: 14px;
  line-height: 1.3;
}

.section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 96px 0;
}

.section-spacer {
  margin-top: 76px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1fr);
  gap: 40px;
  margin-bottom: 44px;
}

h2 {
  max-width: 900px;
  font-size: clamp(28px, 3vw, 44px);
  line-height: 1.12;
}

h3 {
  font-size: 22px;
  line-height: 1.25;
}

.copy-block {
  display: grid;
  gap: 20px;
}

.copy-block p {
  margin: 0;
  color: #536171;
  max-width: 900px;
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.65;
}

.wide-shot,
.image-stack img {
  width: 100%;
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 720ms ease,
    transform 720ms cubic-bezier(0.22, 1, 0.36, 1);
}

.wide-shot.reveal,
.image-stack img.reveal {
  transform: translateY(24px) scale(0.99);
}

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

.image-stack {
  display: grid;
  gap: 34px;
}

.insight-grid,
.principles-grid,
.timeline-grid,
.metrics,
.learning-list {
  display: grid;
  gap: 18px;
  margin: 0 0 44px;
}

.insight-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.timeline-grid,
.learning-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.insight-grid article,
.principles-grid article,
.timeline-grid article,
.metrics div,
.learning-list article {
  min-height: 150px;
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.insight-grid span,
.timeline-grid span {
  display: block;
  margin-bottom: 18px;
  color: var(--blue);
  font-family: Montserrat, "Open Sans", sans-serif;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.insight-grid h3,
.principles-grid h3,
.timeline-grid h3,
.learning-list h3 {
  color: var(--blue-dark);
}

.insight-grid p,
.principles-grid p,
.timeline-grid p,
.learning-list p {
  margin: 14px 0 0;
  color: #586676;
  font-size: 17px;
  line-height: 1.55;
}

.metrics div {
  display: grid;
  place-items: center;
  min-height: 160px;
  text-align: center;
}

.metrics strong {
  color: var(--green);
  font-family: Poppins, Montserrat, sans-serif;
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1;
}

.metrics span {
  color: #536171;
  font-size: 17px;
  line-height: 1.35;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 30px 0 44px;
  border-top: 1px solid var(--line);
  color: #718091;
  font-size: 14px;
}

.footer a {
  color: var(--blue-dark);
  font-weight: 700;
}

@media (hover: hover) {
  .hero-checklist li:hover,
  .insight-grid article:hover,
  .principles-grid article:hover,
  .timeline-grid article:hover,
  .metrics div:hover,
  .learning-list article:hover {
    transform: translateY(-4px);
    border-color: rgba(47, 134, 208, 0.34);
    box-shadow: 0 30px 90px rgba(32, 64, 128, 0.16);
  }

  .hero-meta div:hover {
    background: rgba(255, 255, 255, 0.58);
  }
}

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

  .hero {
    min-height: auto;
    padding-top: 112px;
  }

  .hero-art {
    justify-self: center;
    width: min(720px, 92vw);
  }

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

  .hero-meta div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .hero-meta div:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .insight-grid,
  .principles-grid,
  .timeline-grid,
  .metrics,
  .learning-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section {
    padding: 72px 0;
  }
}

@media (max-width: 640px) {
  .site-header,
  .hero,
  .section,
  .footer {
    width: min(100% - 28px, 1180px);
  }

  .hero {
    width: 100%;
    padding-right: 20px;
    padding-bottom: 48px;
    padding-left: 20px;
  }

  .hero-checklist li {
    width: 100%;
  }

  h1 {
    font-size: clamp(42px, 13vw, 70px);
  }

  .hero-context,
  .hero-meta,
  .insight-grid,
  .principles-grid,
  .timeline-grid,
  .metrics,
  .learning-list {
    grid-template-columns: 1fr;
  }

  .hero-context dl {
    grid-template-columns: 1fr;
  }

  .hero-context p {
    font-size: 17px;
  }

  .hero-meta div:nth-last-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .hero-meta div:last-child {
    border-bottom: 0;
  }

  .content-grid {
    gap: 24px;
    margin-bottom: 28px;
  }

  .image-stack {
    gap: 18px;
  }

  .footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}