:root {
  --ink: #092d50;
  --muted: #4a6d89;
  --paper: #e7f4ff;
  --white: #eef8ff;
  --navy: #0a3158;
  --navy-2: #0d4478;
  --blue: #147fd1;
  --cyan: #76d9ff;
  --aqua: #bcecff;
  --sand: #d9edfb;
  --line: rgba(14, 76, 126, 0.18);
  --line-light: rgba(190, 230, 255, 0.22);
  --shadow: 0 24px 64px rgba(8, 56, 96, 0.18);
  --radius: 18px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--navy);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

body.has-lightbox {
  overflow: hidden;
}

img,
video {
  display: block;
  width: 100%;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

.site-header {
  position: fixed;
  z-index: 50;
  top: 18px;
  left: 50%;
  display: flex;
  width: min(var(--max), calc(100% - 36px));
  min-height: 58px;
  transform: translateX(-50%);
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 12px 10px 20px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 14px;
  color: var(--white);
  background: rgba(8, 48, 86, 0.88);
  box-shadow: 0 18px 50px rgba(8, 49, 86, 0.24);
  backdrop-filter: blur(18px);
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  color: var(--ink);
  background: rgba(232, 246, 255, 0.96);
}

.brand,
.site-nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 17px;
  height: 17px;
  border: 4px solid var(--blue);
  border-top-color: var(--cyan);
  border-radius: 50%;
}

.site-nav {
  gap: 4px;
}

.site-nav a {
  padding: 8px 12px;
  border-radius: 9px;
  color: inherit;
  font-size: 0.88rem;
  font-weight: 800;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(99, 209, 230, 0.15);
  outline: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.06fr);
  gap: clamp(34px, 5vw, 72px);
  min-height: 88vh;
  align-items: center;
  padding: 126px max(24px, calc((100vw - var(--max)) / 2)) 68px;
  background:
    radial-gradient(circle at 80% 20%, rgba(82, 190, 242, 0.3), transparent 31%),
    linear-gradient(135deg, #dff1ff 0%, #cfeaff 47%, #b9dcf7 100%);
}

.hero-copy {
  max-width: 640px;
}

.eyebrow {
  margin: 0 0 15px;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 950;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(3.1rem, 6vw, 5.7rem);
  line-height: 0.94;
  letter-spacing: -0.065em;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(2.3rem, 4.7vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

h3 {
  margin-bottom: 9px;
  font-size: 1.3rem;
  line-height: 1.18;
  letter-spacing: -0.025em;
}

.hero-lede {
  max-width: 620px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 1.18rem;
}

.hero-actions,
.closing-links {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  align-items: center;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 19px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-weight: 900;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  outline: none;
}

.button.primary {
  color: var(--white);
  background: var(--navy-2);
  box-shadow: 0 16px 36px rgba(5, 36, 59, 0.24);
}

.button.secondary {
  border-color: rgba(14, 76, 126, 0.22);
  background: rgba(226, 243, 255, 0.82);
}

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

.proof-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.proof-chips li {
  padding: 7px 10px;
  border: 1px solid rgba(8, 119, 201, 0.16);
  border-radius: 999px;
  color: #15547f;
  background: rgba(220, 241, 255, 0.7);
  font-size: 0.78rem;
  font-weight: 850;
}

.hero-visual {
  position: relative;
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(5, 36, 59, 0.2);
  border-radius: var(--radius);
  background: var(--navy);
  box-shadow: var(--shadow);
}

.hero-visual img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.hero-visual figcaption {
  position: absolute;
  right: 14px;
  bottom: 14px;
  left: 14px;
  display: grid;
  padding: 17px 18px;
  border: 1px solid rgba(255, 255, 255, 0.23);
  border-radius: 12px;
  color: var(--white);
  background: rgba(7, 43, 77, 0.88);
  backdrop-filter: blur(16px);
}

.hero-visual figcaption span,
.hero-visual figcaption small {
  color: rgba(255, 255, 255, 0.72);
}

.hero-visual figcaption span {
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-visual figcaption strong {
  margin: 2px 0;
  font-size: 1.2rem;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.13);
}

.proof-strip article {
  min-height: 165px;
  padding: 28px max(20px, calc((100vw - var(--max)) / 8));
  color: var(--white);
  background: var(--navy);
}

.proof-strip strong,
.proof-strip span {
  display: block;
}

.proof-strip strong {
  margin-bottom: 7px;
  color: var(--cyan);
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  line-height: 1;
}

.proof-strip span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.9rem;
  font-weight: 700;
}

.section {
  padding: 104px 24px;
  scroll-margin-top: 92px;
}

.section-inner {
  width: min(var(--max), 100%);
  margin: 0 auto;
}

.problem-section {
  background: linear-gradient(180deg, #d9edfc, #cce6f8);
}

.split-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.8fr);
  gap: clamp(40px, 8vw, 110px);
  align-items: start;
}

.intro-copy {
  padding-top: 34px;
  color: var(--muted);
  font-size: 1.12rem;
}

.accent-copy {
  margin-top: 28px;
  padding: 20px 22px;
  border-left: 5px solid var(--blue);
  color: var(--ink);
  background: rgba(226, 243, 255, 0.78);
  font-weight: 750;
}

.workflow-section {
  color: var(--white);
  background:
    radial-gradient(circle at 85% 12%, rgba(99, 209, 230, 0.16), transparent 25%),
    linear-gradient(180deg, var(--navy), #0b3b69);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 46px;
}

.section-heading .eyebrow,
.codex-section .eyebrow {
  color: var(--cyan);
}

.section-heading > p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.68);
  font-size: 1.1rem;
}

.centered {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.workflow-grid li {
  display: flex;
  min-height: 320px;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--line-light);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
}

.workflow-grid li > span {
  margin-bottom: 46px;
  color: var(--cyan);
  font-weight: 950;
}

.workflow-grid p {
  color: rgba(255, 255, 255, 0.69);
  font-size: 0.93rem;
}

.workflow-grid small {
  margin-top: auto;
  padding-top: 18px;
  color: var(--aqua);
  font-weight: 800;
}

.evidence-section {
  background: linear-gradient(180deg, #cce7f9, #e2f2fc 55%, #c6e2f5);
}

.evidence-heading {
  display: grid;
  max-width: none;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.62fr);
  gap: 60px;
  align-items: end;
}

.evidence-heading > p {
  color: var(--muted) !important;
}

.evidence-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.48fr) minmax(280px, 0.52fr);
  gap: 14px;
}

.evidence-feature {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.evidence-image {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  cursor: zoom-in;
  background: #cfe7f6;
}

.evidence-image img {
  aspect-ratio: 16 / 10;
  object-fit: contain;
  transition: opacity 150ms ease;
}

.evidence-image img.is-changing {
  opacity: 0.3;
}

.evidence-image > span {
  position: absolute;
  right: 12px;
  bottom: 12px;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--white);
  background: rgba(8, 51, 91, 0.88);
  font-size: 0.75rem;
  font-weight: 850;
}

.evidence-feature figcaption {
  display: flex;
  gap: 24px;
  align-items: flex-end;
  justify-content: space-between;
  padding: 24px;
}

.evidence-feature figcaption > div:first-child {
  max-width: 650px;
}

.evidence-feature figcaption span,
.case-grid article > div > span,
.video-copy .live-badge {
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 950;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.evidence-feature figcaption strong {
  display: block;
  margin: 5px 0 7px;
  font-size: 1.45rem;
}

.evidence-feature figcaption p {
  margin-bottom: 0;
  color: var(--muted);
}

.status-pill {
  flex: 0 0 auto;
  padding: 8px 10px;
  border-radius: 999px;
  color: #0f523f;
  background: #dff5eb;
  font-size: 0.75rem;
  font-weight: 900;
}

.status-pill.interim {
  color: #714600;
  background: #fff1c8;
}

.evidence-picker {
  display: grid;
  gap: 9px;
}

.evidence-card {
  display: grid;
  width: 100%;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  background: rgba(224, 241, 252, 0.84);
  transition: transform 150ms ease, border-color 150ms ease, background 150ms ease;
}

.evidence-card:hover,
.evidence-card:focus-visible,
.evidence-card.is-active {
  transform: translateX(-3px);
  border-color: rgba(8, 119, 201, 0.58);
  background: var(--white);
  outline: none;
}

.evidence-card span {
  color: var(--blue);
  font-size: 0.68rem;
  font-weight: 950;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.evidence-card strong {
  margin: 3px 0;
}

.evidence-card small {
  color: var(--muted);
}

.claim-boundary {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 24px;
  margin-top: 22px;
  padding: 22px 24px;
  border: 1px solid rgba(8, 119, 201, 0.2);
  border-radius: 13px;
  background: rgba(222, 240, 252, 0.86);
}

.claim-boundary strong {
  color: var(--blue);
}

.claim-boundary p {
  margin-bottom: 0;
  color: var(--muted);
}

.demo-section {
  background: #d8edfb;
}

.demo-section .section-heading > p:not(.eyebrow) {
  color: var(--muted);
}

.video-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.38fr) minmax(300px, 0.62fr);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #cce6f7;
  box-shadow: var(--shadow);
}

.video-feature video {
  height: 100%;
  min-height: 440px;
  object-fit: cover;
  background: #082b4c;
}

.video-copy {
  padding: 34px;
}

.video-copy h3 {
  margin-top: 12px;
  font-size: 1.75rem;
}

.video-copy p,
.video-copy li,
.case-grid p {
  color: var(--muted);
}

.video-copy ul {
  display: grid;
  gap: 8px;
  padding-left: 20px;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.case-grid article {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #d0e8f8;
}

.case-grid article:first-child {
  grid-column: 1 / -1;
}

.case-grid video,
.case-grid article > img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #082b4c;
}

.case-grid article > div {
  padding: 24px;
}

.case-grid article h3 {
  margin-top: 6px;
}

.codex-section {
  color: var(--white);
  background:
    radial-gradient(circle at 12% 18%, rgba(99, 209, 230, 0.17), transparent 28%),
    linear-gradient(145deg, #0a3158, #0e4b80);
}

.codex-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  gap: 72px;
  align-items: start;
}

.codex-copy {
  position: sticky;
  top: 118px;
}

.codex-copy p:not(.eyebrow) {
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.08rem;
}

.codex-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.codex-grid article {
  min-height: 245px;
  padding: 25px;
  border: 1px solid var(--line-light);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.065);
}

.codex-grid article > span {
  display: block;
  margin-bottom: 44px;
  color: var(--cyan);
  font-weight: 950;
}

.codex-grid p {
  color: rgba(255, 255, 255, 0.67);
}

.closing-section {
  background: linear-gradient(180deg, #c9e5f7, #dff1fc);
}

.closing-card {
  padding: clamp(34px, 6vw, 70px);
  border: 1px solid rgba(8, 119, 201, 0.18);
  border-radius: 22px;
  background:
    radial-gradient(circle at 85% 10%, rgba(99, 209, 230, 0.24), transparent 32%),
    var(--white);
  box-shadow: var(--shadow);
}

.closing-card h2 {
  max-width: 900px;
}

.closing-card > p:not(.eyebrow) {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.12rem;
}

.text-link {
  color: var(--blue);
  font-weight: 900;
}

footer {
  display: flex;
  flex-wrap: wrap;
  width: min(var(--max), calc(100% - 48px));
  min-height: 84px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 0.85rem;
}

footer .source-attribution {
  flex-basis: 100%;
  padding-bottom: 18px;
  font-size: 0.74rem;
  line-height: 1.45;
}

footer a {
  color: inherit;
}

.lightbox {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 12px;
  padding: 24px;
  color: var(--white);
  background: rgba(7, 35, 63, 0.97);
}

.lightbox[hidden] {
  display: none;
}

.lightbox button {
  position: absolute;
  z-index: 2;
  top: 18px;
  right: 18px;
  padding: 10px 13px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 9px;
  color: var(--white);
  cursor: pointer;
  background: rgba(255, 255, 255, 0.1);
}

.lightbox strong {
  padding-right: 90px;
}

.lightbox img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

@media (max-width: 1050px) {
  .workflow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .workflow-grid li:last-child {
    grid-column: 1 / -1;
    min-height: 230px;
  }

  .evidence-stage,
  .video-feature,
  .codex-layout {
    grid-template-columns: 1fr;
  }

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

  .codex-copy {
    position: static;
  }
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
  }

  .site-nav {
    max-width: 65%;
    overflow-x: auto;
  }

  .site-nav a {
    white-space: nowrap;
  }

  .hero,
  .split-intro,
  .evidence-heading {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 128px;
  }

  .hero-copy {
    max-width: none;
  }

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

  .proof-strip article {
    padding: 25px;
  }

  .intro-copy {
    padding-top: 0;
  }

  .evidence-feature figcaption {
    align-items: flex-start;
    flex-direction: column;
  }

  .video-feature video {
    min-height: 0;
    aspect-ratio: 16 / 10;
  }
}

@media (max-width: 620px) {
  .site-header {
    top: 10px;
    width: calc(100% - 20px);
    min-height: 54px;
    padding-left: 14px;
  }

  .brand {
    padding-top: 7px;
  }

  .site-nav {
    max-width: 58%;
  }

  .site-nav a {
    padding: 8px;
    font-size: 0.78rem;
  }

  .hero {
    padding: 104px 18px 54px;
  }

  h1 {
    font-size: clamp(2.7rem, 14vw, 4rem);
  }

  .hero-visual figcaption {
    position: static;
    border: 0;
    border-radius: 0;
  }

  .proof-strip,
  .workflow-grid,
  .evidence-picker,
  .case-grid,
  .codex-grid,
  .claim-boundary {
    grid-template-columns: 1fr;
  }

  .workflow-grid li:last-child {
    grid-column: auto;
  }

  .section {
    padding: 76px 18px;
  }

  .workflow-grid li,
  .codex-grid article {
    min-height: 230px;
  }

  .evidence-feature figcaption,
  .video-copy,
  .case-grid article > div {
    padding: 20px;
  }

  footer {
    width: calc(100% - 36px);
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}