:root {
  color-scheme: light;
  --bg: #f5f5f7;
  --surface: rgba(255, 255, 255, .82);
  --white: #fff;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --line: rgba(0, 0, 0, .09);
  --blue: #0071e3;
  --blue-bright: #2997ff;
  --violet: #8d5cff;
  --green: #34c759;
  --red: #ff453a;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--bg); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; }

.global-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  padding: 0 max(24px, calc((100vw - 1120px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(250, 250, 252, .78);
  backdrop-filter: saturate(180%) blur(22px);
}

.wordmark { display: inline-flex; align-items: center; gap: 9px; font-size: 14px; font-weight: 650; text-decoration: none; }
.wordmark-icon { display: flex; align-items: end; gap: 2px; width: 17px; height: 16px; }
.wordmark-icon i { display: block; width: 4px; border-radius: 2px; background: var(--ink); }
.wordmark-icon i:nth-child(1) { height: 7px; }
.wordmark-icon i:nth-child(2) { height: 15px; background: linear-gradient(#ff645d, #ff3b30); }
.wordmark-icon i:nth-child(3) { height: 10px; }
.nav-links { display: flex; align-items: center; gap: 27px; }
.nav-links a { color: #424245; font-size: 12px; text-decoration: none; }
.nav-links a:hover { color: var(--blue); }
.nav-links .nav-cta { padding: 7px 13px; border-radius: 999px; color: #fff; background: var(--blue); }
.nav-links .nav-cta:hover { color: #fff; background: #0077ed; }

.hero {
  position: relative;
  min-height: 860px;
  overflow: hidden;
  padding: 126px 24px 92px;
  text-align: center;
  background: #fff;
}
.hero > *:not(.hero-glow) { position: relative; z-index: 2; }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(15px); opacity: .55; pointer-events: none; }
.hero-glow-blue { width: 680px; height: 420px; top: 410px; left: calc(50% - 560px); background: radial-gradient(circle, rgba(0, 113, 227, .26), transparent 68%); transform: rotate(-18deg); }
.hero-glow-violet { width: 720px; height: 450px; top: 390px; right: calc(50% - 590px); background: radial-gradient(circle, rgba(141, 92, 255, .24), transparent 68%); transform: rotate(18deg); }
.hero-kicker { margin: 0 0 20px; color: var(--blue); font-size: 20px; font-weight: 650; letter-spacing: -.02em; }
.hero h1 { max-width: 1100px; margin: 0 auto; font-size: clamp(58px, 8vw, 106px); line-height: .98; letter-spacing: -.067em; font-weight: 720; }
.hero h1 span { color: transparent; background: linear-gradient(96deg, #2468d8 8%, #7a59d1 51%, #d14c8b 92%); -webkit-background-clip: text; background-clip: text; }
.hero-copy { max-width: 790px; margin: 38px auto 0; color: var(--muted); font-size: clamp(19px, 2.2vw, 25px); line-height: 1.45; letter-spacing: -.027em; }
.hero-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 24px; border-radius: 999px; font-size: 17px; text-decoration: none; transition: transform 180ms ease, background 180ms ease; }
.button:hover { transform: translateY(-1px); }
.button-primary { color: #fff; background: var(--blue); }
.button-primary:hover { background: #0077ed; }
.button-secondary { border: 1px solid rgba(0, 113, 227, .55); color: var(--blue); background: rgba(255, 255, 255, .54); }
.button-secondary:hover { background: rgba(0, 113, 227, .06); }
.hero-stats { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); max-width: 920px; margin: 92px auto 0; padding: 0; border: 1px solid rgba(255,255,255,.68); border-radius: 28px; background: rgba(255, 255, 255, .62); box-shadow: 0 28px 90px rgba(70, 78, 120, .14); backdrop-filter: blur(22px); }
.hero-stats div { padding: 27px 16px 25px; }
.hero-stats div + div { border-left: 1px solid var(--line); }
.hero-stats dt { font-size: clamp(30px, 4vw, 46px); line-height: 1; font-weight: 700; letter-spacing: -.045em; }
.hero-stats dd { margin: 8px 0 0; color: var(--muted); font-size: 13px; }

.section { padding: 150px max(24px, calc((100vw - 1120px) / 2)); }
.section-dark { color: #f5f5f7; background: #000; }
.section-light { background: var(--bg); }
.section-frosted { overflow: hidden; background: linear-gradient(180deg, #fff 0%, #f2f5fa 52%, #fff 100%); }
.section-intro { max-width: 890px; margin-bottom: 72px; }
.eyebrow { margin: 0 0 20px; color: var(--blue); font-size: 15px; font-weight: 650; letter-spacing: .02em; }
.section-dark .eyebrow { color: var(--blue-bright); }
.section-intro h2, .closing h2 { margin: 0; font-size: clamp(48px, 6.2vw, 80px); line-height: 1.02; letter-spacing: -.055em; font-weight: 700; }
.section-intro h2 span, .closing h2 span { color: var(--muted); }
.section-dark .section-intro h2 span { color: #86868b; }
.section-intro > p:last-child { max-width: 750px; margin: 28px 0 0; color: var(--muted); font-size: 21px; line-height: 1.52; letter-spacing: -.02em; }
.section-dark .section-intro > p:last-child { color: #a1a1a6; }

.contrast-stage { display: grid; grid-template-columns: 1fr 70px 1fr; align-items: center; }
.contrast-card { min-height: 420px; padding: 48px; border-radius: 36px; }
.contrast-no { color: #a1a1a6; background: #151516; }
.contrast-yes { color: #f5f5f7; background: radial-gradient(circle at 85% 10%, rgba(41,151,255,.26), transparent 38%), linear-gradient(145deg, #171719, #202025); box-shadow: inset 0 0 0 1px rgba(255,255,255,.09), 0 35px 80px rgba(0,0,0,.6); }
.contrast-card .status { margin: 62px 0 8px; font-size: 14px; font-weight: 650; }
.contrast-no .status { color: var(--red); }
.contrast-yes .status { color: #30d158; }
.contrast-card h3 { max-width: 420px; margin: 0; font-size: 34px; line-height: 1.1; letter-spacing: -.04em; }
.contrast-card > p:last-child { max-width: 420px; margin: 17px 0 0; color: #a1a1a6; font-size: 17px; line-height: 1.5; }
.contrast-divider { display: grid; place-items: center; }
.contrast-divider span { display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid #333336; border-radius: 50%; color: #86868b; font-size: 12px; font-weight: 700; background: #0c0c0d; }
.mini-bars { display: flex; align-items: end; gap: 15px; height: 105px; opacity: .65; }
.mini-bars i { display: block; width: 36px; border-radius: 8px 8px 2px 2px; background: #56565a; }
.mini-bars i:nth-child(1) { height: 47px; background: #ff9f0a; }
.mini-bars i:nth-child(2) { height: 92px; background: #bf5af2; }
.mini-bars i:nth-child(3) { height: 68px; background: #64d2ff; }
.mini-bars i:nth-child(4) { height: 82px; background: #30d158; }
.grammar-symbol { position: relative; display: grid; grid-template-columns: repeat(2, 58px); gap: 19px; width: max-content; height: 105px; align-content: center; }
.grammar-symbol::before, .grammar-symbol::after { content: ""; position: absolute; left: 48px; width: 39px; height: 1px; background: #2997ff; }
.grammar-symbol::before { top: 26px; transform: rotate(30deg); }
.grammar-symbol::after { bottom: 26px; transform: rotate(-30deg); }
.grammar-symbol span { width: 58px; height: 34px; border: 1px solid rgba(100,210,255,.75); border-radius: 10px; background: rgba(41,151,255,.14); }

.pipeline { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; margin: 0 0 32px; padding: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 28px; list-style: none; background: var(--line); }
.pipeline li { min-height: 186px; padding: 28px 24px; background: rgba(255,255,255,.72); }
.pipeline li span { display: block; margin-bottom: 45px; color: var(--blue); font-size: 13px; font-weight: 650; }
.pipeline li strong { display: block; font-size: 19px; letter-spacing: -.02em; }
.pipeline li small { display: block; margin-top: 7px; color: var(--muted); font-size: 13px; line-height: 1.4; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.feature { min-width: 0; overflow: hidden; padding: 48px; border-radius: 36px; background: var(--white); box-shadow: 0 4px 24px rgba(0,0,0,.04); }
.feature-wide { grid-column: 1 / -1; display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 42px; min-height: 610px; padding-right: 0; background: linear-gradient(145deg, #fff, #f0f5ff); }
.feature-copy { max-width: 460px; }
.feature-kicker { margin: 0 0 14px; color: var(--blue); font-size: 14px; font-weight: 650; }
.feature h3 { margin: 0; font-size: clamp(29px, 3.5vw, 43px); line-height: 1.08; letter-spacing: -.04em; }
.feature-copy > p:last-child { margin: 22px 0 0; color: var(--muted); font-size: 17px; line-height: 1.52; }
.live-window { min-width: 0; overflow: hidden; border: 1px solid rgba(0,0,0,.1); border-right: 0; border-radius: 22px 0 0 22px; background: #fff; box-shadow: 0 28px 70px rgba(50,70,120,.18); }
.window-bar { display: flex; align-items: center; gap: 7px; height: 42px; padding: 0 15px; border-bottom: 1px solid var(--line); color: #86868b; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.window-bar i { width: 9px; height: 9px; border-radius: 50%; background: #ff5f57; }
.window-bar i:nth-child(2) { background: #febc2e; }
.window-bar i:nth-child(3) { margin-right: 8px; background: #28c840; }
.live-chart { aspect-ratio: 16 / 10; }
.live-chart svg, .evidence-chart svg { display: block; width: 100%; height: 100%; }
.contract-list { display: grid; gap: 1px; margin: 42px 0 0; padding: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: var(--line); list-style: none; }
.contract-list li { display: flex; align-items: center; justify-content: space-between; min-height: 63px; gap: 24px; padding: 0 20px; background: #fafafa; }
.contract-list code { color: var(--blue); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-weight: 650; }
.contract-list span { color: var(--muted); font-size: 14px; text-align: right; }
.feature-code { color: #f5f5f7; background: #101011; }
.feature-code .feature-kicker { color: var(--blue-bright); }
.feature-code pre { margin: 42px 0 0; padding: 24px; overflow: auto; border: 1px solid #303034; border-radius: 18px; color: #d1d1d6; background: #1a1a1c; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 14px; line-height: 1.7; }
.feature-code code span { color: #ff7ab2; }
.feature-code code b { color: #64d2ff; font-weight: 500; }

.evidence-list { display: grid; gap: 86px; }
.evidence-row { display: grid; grid-template-columns: .82fr 1.18fr; align-items: center; gap: 64px; }
.evidence-row-reverse { grid-template-columns: 1.18fr .82fr; }
.evidence-row-reverse .evidence-copy { order: 2; }
.evidence-copy { max-width: 470px; }
.evidence-number { margin: 0 0 35px; color: #b8b8bd; font-size: 13px; font-weight: 650; }
.evidence-source { margin: 0 0 13px; color: var(--blue); font-size: 13px; font-weight: 650; }
.evidence-copy h3 { margin: 0; font-size: clamp(33px, 4vw, 49px); line-height: 1.07; letter-spacing: -.045em; }
.evidence-copy > p:nth-of-type(3) { margin: 22px 0 0; color: var(--muted); font-size: 17px; line-height: 1.55; }
.evidence-copy a { display: inline-block; margin-top: 23px; color: var(--blue); font-size: 15px; text-decoration: none; }
.evidence-copy a:hover { text-decoration: underline; }
.evidence-chart { min-width: 0; overflow: hidden; aspect-ratio: 16 / 10; border: 1px solid rgba(0,0,0,.08); border-radius: 30px; background: #fff; box-shadow: 0 24px 65px rgba(65,78,110,.13); transform: perspective(1100px) rotateY(-2deg); }
.evidence-row-reverse .evidence-chart { transform: perspective(1100px) rotateY(2deg); }

.quality-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.quality-grid article { min-height: 230px; padding: 31px; border: 1px solid var(--line); border-radius: 28px; background: rgba(255,255,255,.65); }
.quality-icon { display: grid; place-items: center; width: 43px; height: 43px; margin-bottom: 48px; border-radius: 13px; color: #fff; background: linear-gradient(145deg, var(--blue), #5a8dee); box-shadow: 0 8px 18px rgba(0,113,227,.2); }
.quality-grid strong { display: block; font-size: 20px; letter-spacing: -.025em; }
.quality-grid p { margin: 9px 0 0; color: var(--muted); font-size: 14px; line-height: 1.48; }

.closing { position: relative; display: grid; place-items: center; min-height: 760px; overflow: hidden; padding: 120px 24px; color: #f5f5f7; text-align: center; background: #000; }
.closing-orb { position: absolute; width: 900px; height: 600px; border-radius: 50%; background: radial-gradient(circle at 38% 40%, rgba(41,151,255,.64), rgba(118,72,210,.4) 32%, rgba(214,73,142,.22) 53%, transparent 70%); filter: blur(22px); transform: translateY(230px) scaleX(1.4); }
.closing-content { position: relative; z-index: 2; max-width: 1050px; }
.closing .eyebrow { color: #64d2ff; }
.closing h2 span { color: #a1a1a6; }
.closing-content > p:nth-of-type(2) { max-width: 680px; margin: 28px auto 0; color: #a1a1a6; font-size: 20px; line-height: 1.5; }
.closing .button-secondary { border-color: rgba(255,255,255,.35); color: #fff; background: rgba(255,255,255,.08); }

footer { display: flex; align-items: center; justify-content: space-between; gap: 25px; min-height: 110px; padding: 25px max(24px, calc((100vw - 1120px) / 2)); border-top: 1px solid var(--line); color: var(--muted); background: #fff; font-size: 12px; }
footer p { margin: 0; }
footer > div { display: flex; gap: 20px; }
footer > div a { text-decoration: none; }
footer > div a:hover { color: var(--blue); }

.reveal { opacity: 1; transform: none; }
.js .reveal { animation: atlas-reveal 720ms both cubic-bezier(.2,.7,.2,1); animation-timeline: view(); animation-range: entry 8% cover 28%; }
@keyframes atlas-reveal { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .js .reveal { animation: none; }
  .button { transition: none; }
}

@media (max-width: 900px) {
  .section { padding-block: 105px; }
  .contrast-stage { grid-template-columns: 1fr; gap: 18px; }
  .contrast-divider { display: none; }
  .pipeline { grid-template-columns: 1fr 1fr; }
  .pipeline li:last-child { grid-column: 1 / -1; }
  .feature-wide { grid-template-columns: 1fr; padding-right: 48px; }
  .live-window { border-right: 1px solid rgba(0,0,0,.1); border-radius: 22px; }
  .evidence-row, .evidence-row-reverse { grid-template-columns: 1fr; gap: 32px; }
  .evidence-row-reverse .evidence-copy { order: 0; }
  .evidence-copy { max-width: 720px; }
  .evidence-chart, .evidence-row-reverse .evidence-chart { transform: none; }
  .quality-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .global-nav { min-height: 48px; padding-inline: 17px; }
  .nav-links > a:not(.nav-cta) { display: none; }
  .nav-links { gap: 0; }
  .hero { min-height: 780px; padding: 100px 20px 72px; }
  .hero h1 { font-size: clamp(50px, 15vw, 70px); }
  .hero-copy { font-size: 19px; }
  .hero-stats { grid-template-columns: 1fr 1fr; margin-top: 65px; border-radius: 22px; }
  .hero-stats div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .hero-stats div:nth-child(4) { border-top: 1px solid var(--line); }
  .section { padding: 88px 20px; }
  .section-intro { margin-bottom: 48px; }
  .section-intro h2, .closing h2 { font-size: 45px; }
  .section-intro > p:last-child { font-size: 18px; }
  .contrast-card { min-height: 360px; padding: 32px; border-radius: 27px; }
  .contrast-card h3 { font-size: 29px; }
  .pipeline { grid-template-columns: 1fr; border-radius: 22px; }
  .pipeline li, .pipeline li:last-child { grid-column: auto; min-height: 130px; }
  .pipeline li span { margin-bottom: 20px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature, .feature-wide { grid-column: auto; padding: 32px 24px; border-radius: 27px; }
  .feature-wide { min-height: auto; }
  .live-window { margin-top: 10px; }
  .contract-list li { align-items: flex-start; flex-direction: column; gap: 4px; padding: 14px 17px; }
  .contract-list span { text-align: left; }
  .feature-code pre { padding: 17px; font-size: 11px; }
  .evidence-list { gap: 70px; }
  .evidence-copy h3 { font-size: 34px; }
  .evidence-chart { border-radius: 20px; }
  .quality-grid { grid-template-columns: 1fr; }
  .quality-grid article { min-height: 200px; }
  .closing { min-height: 690px; padding-inline: 20px; }
  footer { align-items: flex-start; flex-direction: column; padding-block: 35px; }
}