@font-face {
  font-family: "Instrument Serif";
  src: url("fonts/InstrumentSerif-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Instrument Serif";
  src: url("fonts/InstrumentSerif-Italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Switzer";
  src: url("fonts/Switzer-Variable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Geist Mono";
  src: url("fonts/GeistMono-Variable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --blue: #0b2fd6;
  --blue-dark: #0825ad;
  --coral: #ff4d2e;
  --void: #08090d;
  --ink: #11131a;
  --white: #f4f5f8;
  --paper: #f7f7f4;
  --mist: #dfe3f1;
  --muted: #5f6474;
  --line-dark: rgba(8, 9, 13, 0.18);
  --line-light: rgba(244, 245, 248, 0.22);
  --serif: "Instrument Serif", "Iowan Old Style", Baskerville, "Times New Roman", serif;
  --sans: "Switzer", Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "Geist Mono", "SFMono-Regular", "Cascadia Code", Consolas, monospace;
  --max: 1280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
::selection { color: var(--void); background: var(--coral); }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 0; left: 1rem; z-index: 100; padding: .85rem 1rem; color: var(--void); background: var(--white); transform: translateY(-120%); }
.skip-link:focus { transform: translateY(0); }
.section-shell { width: min(calc(100% - 64px), var(--max)); margin-inline: auto; }
.section-pad { padding-block: clamp(6rem, 10vw, 10rem); }
.blue-field { color: var(--white); background: var(--blue); }

.site-header { position: sticky; top: 0; z-index: 50; display: flex; align-items: center; justify-content: space-between; min-height: 78px; padding-inline: max(32px, calc((100vw - var(--max)) / 2)); border-bottom: 1px solid transparent; background: rgba(11, 47, 214, .9); backdrop-filter: blur(18px); transition: border-color 180ms ease, min-height 180ms ease; }
.site-header.is-scrolled { min-height: 68px; border-color: var(--line-light); }
.brand { display: inline-flex; align-items: center; gap: .7rem; color: var(--white); text-decoration: none; }
.brand-glyph { display: block; width: 32.5px; height: 42px; flex: none; }
.brand-glyph .mark-c { fill: currentColor; }
.brand-glyph .mark-prime { fill: var(--coral); }
.wordmark { display: inline-flex; align-items: baseline; color: var(--white); line-height: 1; white-space: nowrap; }
.wordmark span { font-family: var(--serif); font-size: 1.38rem; font-weight: 400; letter-spacing: -.01em; }
.wordmark b { margin-left: .12em; font-family: var(--sans); font-size: .76rem; font-weight: 750; letter-spacing: .025em; }
.site-nav { display: flex; align-items: center; gap: clamp(1rem, 2.8vw, 2.6rem); }
.site-nav a { color: rgba(244,245,248,.78); font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-decoration: none; text-transform: uppercase; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--white); }
.site-nav .nav-cta { padding: .78rem 1rem; color: var(--void); border: 2px solid var(--white); background: var(--coral); }
.site-nav .nav-cta:hover, .site-nav .nav-cta:focus-visible { color: var(--void); background: var(--white); }
.menu-toggle { display: none; }

.hero { display: grid; grid-template-columns: minmax(0, 1.03fr) minmax(420px, .97fr); gap: clamp(4rem, 8vw, 9rem); align-items: center; min-height: calc(100svh - 78px); padding-block: clamp(5rem, 8vw, 8rem); }
.eyebrow, .section-label, .cascade-meta, .card-number { font-family: var(--mono); font-size: .68rem; font-weight: 650; letter-spacing: .14em; line-height: 1.5; text-transform: uppercase; }
.eyebrow { margin: 0 0 1.45rem; }
.section-label { margin: 0; color: var(--muted); }
.hero .eyebrow { color: rgba(244,245,248,.78); }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { text-wrap: balance; }
h1 { max-width: 760px; margin-bottom: 2rem; font-family: var(--serif); font-size: clamp(4.6rem, 7.7vw, 8.2rem); font-weight: 400; letter-spacing: -.02em; line-height: .9; }
h1 em { font-weight: 400; }
.headline-prime { position: relative; margin-left: .01em; color: var(--coral); font-family: var(--serif); font-style: italic; font-size: 1em; font-weight: 400; line-height: 0; }
.hero-lede { max-width: 43rem; margin-bottom: 1rem; color: rgba(244,245,248,.86); font-size: clamp(1.05rem, 1.4vw, 1.25rem); line-height: 1.6; }
.hero-detail { margin-bottom: 2.35rem; color: var(--white); font-family: var(--mono); font-size: .73rem; letter-spacing: .08em; text-transform: uppercase; }
.hero-actions { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }
.button { display: inline-flex; min-height: 56px; align-items: center; justify-content: center; gap: 2.4rem; padding: 0 1.35rem; font-size: .72rem; font-weight: 750; letter-spacing: .09em; text-decoration: none; text-transform: uppercase; transition: transform 160ms ease, background 160ms ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--void); border: 2px solid var(--white); background: var(--coral); }
.button-primary:hover, .button-primary:focus-visible { background: var(--white); }
.text-link { padding-block: .6rem; color: var(--white); border-bottom: 1px solid rgba(244,245,248,.6); font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }
.text-link:hover { border-color: var(--white); }

.cascade-shell { padding: 1rem; border: 1px solid rgba(244,245,248,.38); background: rgba(8,9,13,.06); box-shadow: 24px 24px 0 rgba(8,9,13,.08); }
.cascade-meta { display: flex; justify-content: space-between; padding: .2rem .2rem 1rem; color: rgba(244,245,248,.75); }
.cascade { position: relative; display: block; width: 100%; min-height: 455px; padding: 0; overflow: hidden; color: var(--white); border: 1px solid rgba(244,245,248,.28); background: transparent; cursor: pointer; }
.cascade::before { position: absolute; inset: 0; content: ""; background-image: linear-gradient(rgba(244,245,248,.14) 1px, transparent 1px), linear-gradient(90deg, rgba(244,245,248,.14) 1px, transparent 1px); background-size: 12.5% 25%; }
.cascade-axis { position: absolute; top: 1rem; left: 1rem; font-family: var(--mono); font-size: .58rem; letter-spacing: .12em; writing-mode: vertical-rl; }
.cascade-bars { position: absolute; inset: 3.5rem 2rem 5.5rem 3rem; display: grid; grid-template-columns: repeat(8, 1fr); gap: clamp(.35rem, 1vw, .7rem); align-items: end; border-bottom: 1px solid var(--white); }
.cascade-bars i { position: relative; display: block; height: var(--h); border: 1px solid rgba(244,245,248,.95); background: rgba(244,245,248,.12); transform-origin: 50% 100%; transition: height 380ms ease calc(var(--i) * 70ms), background 180ms ease calc(var(--i) * 70ms), transform 380ms cubic-bezier(.2,.75,.2,1) calc(var(--i) * 70ms); }
.cascade-bars i:nth-child(1) { --i: 0; --h: 38%; }
.cascade-bars i:nth-child(2) { --i: 1; --h: 51%; }
.cascade-bars i:nth-child(3) { --i: 2; --h: 47%; }
.cascade-bars i:nth-child(4) { --i: 3; --h: 68%; }
.cascade-bars i:nth-child(5) { --i: 4; --h: 57%; }
.cascade-bars i:nth-child(6) { --i: 5; --h: 74%; }
.cascade-bars i:nth-child(7) { --i: 6; --h: 62%; }
.cascade-bars i:nth-child(8) { --i: 7; --h: 84%; }
.cascade-bars i::before { position: absolute; top: 0; right: 0; left: 0; height: 5px; content: ""; background: var(--white); }
.cascade-bars .action-bar { border-color: var(--coral); background: var(--coral); }
.cascade-bars .action-bar::before { background: var(--void); }
.cascade.is-running .cascade-bars i:nth-child(n+5) { height: calc(var(--h) - 10%); background: var(--coral); transform: translateY(calc((var(--i) - 3) * -3px)); }
.cascade.is-running .cascade-bars i:nth-child(n+5)::before { background: var(--void); }
.cascade-labels { position: absolute; right: 2rem; bottom: 3.7rem; left: 3rem; display: grid; grid-template-columns: repeat(8,1fr); gap: clamp(.35rem, 1vw, .7rem); font-family: var(--mono); font-size: .56rem; }
.cascade-labels i { font-style: normal; text-align: center; }
.cascade-labels i:nth-child(4) { color: var(--coral); font-weight: 800; }
.cascade-prompt { position: absolute; right: 1.2rem; bottom: 1rem; left: 1.2rem; display: flex; align-items: center; gap: 1rem; font-family: var(--mono); font-size: .62rem; letter-spacing: .08em; text-align: left; text-transform: uppercase; }
.cascade-prompt b { color: var(--coral); }
.cascade-prompt span { color: rgba(244,245,248,.7); }
.cascade-prompt i { margin-left: auto; font-size: 1rem; font-style: normal; }
.cascade-legend { display: flex; gap: 1.2rem; padding: 1rem .2rem .2rem; color: rgba(244,245,248,.72); font-family: var(--mono); font-size: .57rem; letter-spacing: .05em; text-transform: uppercase; }
.cascade-legend span { display: flex; align-items: center; gap: .35rem; }
.cascade-legend i { width: 8px; height: 8px; border: 1px solid var(--white); }
.cascade-legend span:nth-child(2) i, .cascade-legend span:nth-child(3) i { border-color: var(--coral); background: var(--coral); }

.definition { color: var(--white); background: var(--blue); border-top: 1px solid var(--line-light); }
.definition-grid { display: grid; grid-template-columns: .28fr 1fr .65fr; gap: clamp(2rem, 6vw, 7rem); align-items: start; padding-block: clamp(5rem, 8vw, 8rem); }
.definition .section-label { color: rgba(244,245,248,.58); }
.definition-copy h2, .questions h2, .section-heading h2, .method h2, .final-cta h2 { margin-bottom: 2rem; font-family: var(--serif); font-size: clamp(3rem, 5.3vw, 5.7rem); font-weight: 400; letter-spacing: -.015em; line-height: .98; }
.definition-copy > p { max-width: 47rem; color: rgba(244,245,248,.78); font-size: 1.05rem; line-height: 1.75; }
.delivery-card { padding: 1.6rem; color: var(--ink); border-top: 6px solid var(--coral); background: var(--white); box-shadow: 18px 18px 0 rgba(8,9,13,.11); }
.delivery-card .eyebrow { color: var(--blue); }
.delivery-card ul { margin: 2.4rem 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line-dark); }
.delivery-card li { display: grid; grid-template-columns: 2.4rem 1fr; gap: .7rem; padding: 1rem 0; border-bottom: 1px solid var(--line-dark); font-size: .82rem; font-weight: 650; }
.delivery-card li span { color: var(--blue); font-family: var(--mono); font-size: .62rem; }

.questions { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(4rem, 9vw, 10rem); }
.questions .eyebrow, .pilots .eyebrow { margin-top: 3.5rem; color: var(--blue); }
.questions h2 { max-width: 650px; }
.question-list { border-top: 1px solid var(--line-dark); }
.question-list article { display: grid; grid-template-columns: 3rem 1fr; gap: 1.4rem; padding: 1.6rem 0; border-bottom: 1px solid var(--line-dark); }
.question-list span { color: var(--blue); font-family: var(--mono); font-size: .66rem; }
.question-list p { margin: 0; font-family: var(--serif); font-size: clamp(1.35rem, 2vw, 2rem); line-height: 1.2; }

.pilots { background: var(--white); }
.section-heading { display: grid; grid-template-columns: .28fr 1.72fr; gap: 2rem; margin-bottom: 4rem; }
.section-heading > div { max-width: 850px; }
.pilot-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-dark); border-left: 1px solid var(--line-dark); }
.pilot-card { display: flex; min-height: 590px; flex-direction: column; padding: clamp(1.5rem, 3vw, 2.5rem); border-right: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); transition: color 180ms ease, background 180ms ease; }
.pilot-card:hover { color: var(--white); background: var(--blue); }
.pilot-diagram { display: flex; height: 120px; align-items: center; gap: .85rem; margin-bottom: 3.5rem; border-bottom: 1px solid currentColor; }
.pilot-diagram i { width: 24px; height: 24px; border: 1px solid currentColor; border-radius: 50%; background: currentColor; }
.pilot-diagram i:nth-of-type(2) { background: transparent; }
.pilot-diagram .outcome { border-color: var(--coral); background: var(--coral); }
.pilot-diagram span { font-family: var(--mono); }
.pilot-diagram b { display: grid; width: 32px; height: 32px; place-items: center; border: 1px dashed currentColor; border-radius: 50%; font-family: var(--mono); }
.card-number { color: var(--blue); }
.pilot-card:hover .card-number { color: var(--coral); }
.pilot-card h3 { margin: 1.2rem 0 1.4rem; font-family: var(--serif); font-size: clamp(2rem, 3vw, 3.1rem); font-weight: 400; letter-spacing: -.01em; line-height: 1; }
.pilot-card > p:not(.card-number) { color: var(--muted); line-height: 1.65; }
.pilot-card:hover > p:not(.card-number) { color: rgba(244,245,248,.76); }
.pilot-card ul { margin: auto 0 0; padding: 1.4rem 0 0; list-style: none; border-top: 1px solid var(--line-dark); }
.pilot-card:hover ul { border-color: var(--line-light); }
.pilot-card li { padding: .35rem 0; font-family: var(--mono); font-size: .62rem; letter-spacing: .06em; text-transform: uppercase; }
.pilot-card li::before { margin-right: .7rem; color: var(--coral); content: "↳"; }

.method { color: var(--white); background: var(--void); }
.method-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(4rem, 10vw, 11rem); }
.method .section-label { color: rgba(244,245,248,.45); }
.method .eyebrow { margin-top: 3.5rem; color: var(--coral); }
.method-intro > p:last-child { max-width: 37rem; color: rgba(244,245,248,.65); font-size: 1.02rem; line-height: 1.7; }
.method-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line-light); }
.method-list li { display: grid; grid-template-columns: 4rem 1fr; gap: 1.25rem; padding: 1.55rem 0; border-bottom: 1px solid var(--line-light); }
.method-list li > span { color: var(--coral); font-family: var(--mono); font-size: .65rem; }
.method-list strong { display: block; margin-bottom: .4rem; font-family: var(--serif); font-size: 1.7rem; font-weight: 400; }
.method-list p { margin: 0; color: rgba(244,245,248,.62); font-size: .9rem; line-height: 1.5; }

.final-cta { padding-block: clamp(7rem, 13vw, 13rem); color: var(--white); background: var(--blue); text-align: center; }
.final-cta .section-shell { max-width: 1020px; }
.final-cta .eyebrow { color: rgba(244,245,248,.72); }
.final-cta h2 { margin-inline: auto; }
.final-cta p:not(.eyebrow) { max-width: 650px; margin: 0 auto 2.4rem; color: rgba(244,245,248,.78); font-size: 1.05rem; line-height: 1.7; }
.site-footer { padding-block: 2.4rem; color: var(--white); background: var(--blue-dark); }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 2rem; align-items: center; }
.footer-grid > p { margin: 0; color: rgba(244,245,248,.68); font-family: var(--serif); font-size: .95rem; }
.footer-meta { display: flex; justify-content: flex-end; gap: 1.5rem; color: rgba(244,245,248,.55); font-family: var(--mono); font-size: .58rem; letter-spacing: .06em; text-transform: uppercase; }
.footer-meta a { color: var(--white); text-decoration: none; }
.not-found { display: flex; min-height: 100svh; flex-direction: column; justify-content: space-between; padding-block: 2rem clamp(5rem, 12vw, 10rem); }
.not-found > div { max-width: 900px; }
.not-found h1 { margin-bottom: 2rem; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity 650ms ease, transform 650ms ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-copy { max-width: 780px; }
  .cascade-shell { max-width: 680px; }
  .definition-grid { grid-template-columns: 1fr 1fr; }
  .definition-grid > .section-label { grid-column: 1 / -1; }
  .questions, .method-grid { grid-template-columns: 1fr; }
  .questions-intro, .method-intro { max-width: 760px; }
  .pilot-grid { grid-template-columns: 1fr; }
  .pilot-card { min-height: auto; }
  .pilot-card ul { margin-top: 3rem; }
}

@media (max-width: 740px) {
  .section-shell { width: min(calc(100% - 32px), var(--max)); }
  .site-header { min-height: 68px; padding-inline: 16px; }
  .wordmark span { font-size: 1.24rem; }
  .wordmark b { font-size: .69rem; }
  .menu-toggle { display: grid; width: 42px; height: 42px; place-content: center; gap: 6px; padding: 0; color: var(--white); border: 1px solid var(--line-light); background: transparent; }
  .menu-toggle span:not(.sr-only) { display: block; width: 18px; height: 1px; background: currentColor; transition: transform 180ms ease; }
  .menu-toggle[aria-expanded="true"] span:nth-last-child(2) { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .site-nav { position: absolute; top: 68px; right: 0; left: 0; display: none; align-items: stretch; flex-direction: column; gap: 0; padding: .8rem 16px 1.2rem; border-bottom: 1px solid var(--line-light); background: var(--blue); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 1rem 0; border-bottom: 1px solid var(--line-light); }
  .site-nav .nav-cta { margin-top: .8rem; padding: 1rem; text-align: center; border: 2px solid var(--white); }
  h1 { font-size: clamp(4rem, 18vw, 6rem); }
  .hero { gap: 3.5rem; padding-top: 4rem; }
  .cascade { min-height: 370px; }
  .cascade-bars { inset: 3rem 1rem 5.5rem 2rem; gap: .25rem; }
  .cascade-labels { right: 1rem; left: 2rem; gap: .25rem; font-size: .48rem; }
  .cascade-legend { flex-wrap: wrap; }
  .definition-grid { grid-template-columns: 1fr; }
  .definition-grid > .section-label { grid-column: auto; }
  .section-heading { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-meta { justify-content: flex-start; }
}