:root {
  --bg: #071012;
  --bg-soft: #0a1719;
  --panel: #0d1d20;
  --panel-2: #102529;
  --text: #f0f2e9;
  --muted: #a6b1aa;
  --quiet: #6f8078;
  --line: rgba(222, 234, 222, .16);
  --line-soft: rgba(222, 234, 222, .09);
  --lime: #c2ff3a;
  --lime-soft: rgba(194, 255, 58, .1);
  --orange: #ff8429;
  --blue: #3c9cff;
  --cyan: #2dd8d1;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", monospace;
  --shell: 1200px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--sans); line-height: 1.65; -webkit-font-smoothing: antialiased; }
body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none; background-image: linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px); background-size: 42px 42px; mask-image: linear-gradient(to bottom, #000 0, transparent 50rem); }
a { color: inherit; }
::selection { background: var(--lime); color: #071012; }
:focus-visible { outline: 2px solid var(--lime); outline-offset: 4px; }
.case-shell { width: min(100% - (var(--gutter) * 2), var(--shell)); margin-inline: auto; }
.skip-link { position: fixed; top: .75rem; left: .75rem; z-index: 1000; padding: .75rem 1rem; border-radius: .5rem; background: var(--lime); color: #071012; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }

.case-header { position: fixed; inset: 0 0 auto; z-index: 100; height: 72px; border-bottom: 1px solid var(--line-soft); background: rgba(7,16,18,.9); backdrop-filter: blur(18px); }
.case-nav { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.case-brand { display: inline-flex; align-items: center; gap: .75rem; text-decoration: none; font-size: .86rem; }
.case-brand > span { display: grid; place-items: center; width: 2rem; height: 2rem; border: 1px solid var(--line); border-radius: .5rem; color: var(--lime); font: 500 .67rem/1 var(--mono); }
.case-brand strong { font-weight: 650; }
.case-nav nav { display: flex; align-items: center; gap: clamp(.9rem, 2.4vw, 2rem); }
.case-nav nav a { color: var(--muted); font-size: .73rem; font-weight: 600; text-decoration: none; }
.case-nav nav a:hover { color: var(--lime); }
.case-nav .nav-source { padding: .65rem .8rem; border: 1px solid var(--line); border-radius: .55rem; color: var(--text); }

.case-hero { min-height: 100svh; padding: clamp(9.5rem, 17vh, 12rem) 0 3rem; border-bottom: 1px solid var(--line-soft); background: radial-gradient(circle at 77% 26%, rgba(194,255,58,.08), transparent 24rem); }
.hero-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(390px, .85fr); gap: clamp(3rem, 8vw, 8rem); align-items: center; }
.eyebrow, .section-number { margin: 0 0 1rem; color: var(--lime); font: 500 .62rem/1.45 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: .65rem; }
.eyebrow span { width: .46rem; height: .46rem; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 .3rem var(--lime-soft); }
h1 { margin: 0; font-size: clamp(5.3rem, 12vw, 10.5rem); font-weight: 600; line-height: .82; letter-spacing: -.075em; }
.hero-kicker { margin: 1.6rem 0 0; color: var(--text); font-size: clamp(1.25rem, 2.6vw, 2.15rem); font-weight: 600; line-height: 1.15; letter-spacing: -.045em; }
.hero-lead { max-width: 670px; margin: 1.4rem 0 0; color: var(--muted); font-size: clamp(.98rem, 1.35vw, 1.12rem); line-height: 1.75; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: .75rem 1.2rem; margin-top: 2rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 47px; padding: .8rem 1rem; border: 1px solid var(--line); border-radius: .65rem; font-size: .76rem; font-weight: 650; text-decoration: none; transition: transform .2s ease, border-color .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { border-color: var(--lime); background: var(--lime); color: #071012; }
.button-primary:hover { background: #d1ff69; }
.button-secondary { color: var(--text); background: rgba(255,255,255,.025); }
.button-secondary:hover { border-color: var(--lime); color: var(--lime); }
.text-link { color: var(--text); font-size: .76rem; font-weight: 650; text-decoration: none; border-bottom: 1px solid var(--quiet); }
.text-link:hover { color: var(--lime); border-color: var(--lime); }

.system-panel { min-height: 510px; padding: 1.5rem; border: 1px solid rgba(194,255,58,.24); border-radius: 1rem; background: linear-gradient(145deg, rgba(16,37,41,.95), rgba(5,18,20,.98)); box-shadow: 0 2.5rem 7rem rgba(0,0,0,.28); }
.panel-topline { display: flex; justify-content: space-between; gap: 1rem; color: var(--quiet); font: 500 .55rem/1.4 var(--mono); letter-spacing: .07em; text-transform: uppercase; }
.panel-topline span:last-child { color: var(--lime); }
.system-core { display: grid; place-items: center; width: 230px; min-height: 230px; margin: 2.6rem auto 0; padding: 1.4rem; border: 1px solid rgba(194,255,58,.35); border-radius: 50%; background: radial-gradient(circle, rgba(194,255,58,.13), transparent 68%); text-align: center; }
.system-core > span { display: grid; place-items: center; width: 4.5rem; height: 4.5rem; border-radius: 50%; background: var(--lime); color: #071012; font-size: 2rem; font-weight: 700; box-shadow: 0 0 0 .6rem var(--lime-soft); }
.system-core strong { margin-top: 1rem; font-size: .77rem; text-transform: uppercase; }
.system-core small { color: var(--quiet); font: 500 .49rem/1.4 var(--mono); }
.system-line { width: 1px; height: 1.6rem; margin: 0 auto; background: var(--lime); }
.system-clients { display: grid; grid-template-columns: repeat(3, 1fr); }
.system-clients div { min-width: 0; padding: .85rem .6rem; border: 1px solid var(--line); background: rgba(255,255,255,.02); }
.system-clients div:first-child { border-top-color: var(--orange); }
.system-clients div:nth-child(2) { border-top-color: var(--blue); }
.system-clients div:last-child { border-top-color: var(--cyan); }
.system-clients span, .system-clients small { display: block; color: var(--quiet); font: 500 .48rem/1.4 var(--mono); }
.system-clients strong { display: block; margin: .3rem 0; overflow-wrap: anywhere; font-size: .69rem; }

.evidence-strip { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: clamp(4rem, 9vh, 7rem); border: 1px solid var(--line); border-radius: .8rem; background: rgba(13,29,32,.72); }
.evidence-strip div { padding: 1.1rem 1.2rem; }
.evidence-strip div + div { border-left: 1px solid var(--line); }
.evidence-strip dt { color: var(--quiet); font: 500 .56rem/1.4 var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.evidence-strip dd { margin: .35rem 0 0; font-size: .91rem; font-weight: 650; letter-spacing: -.02em; }

.case-section { padding-block: clamp(5rem, 10vw, 8rem); }
h2 { margin: 0; font-size: clamp(2.5rem, 5.4vw, 5.2rem); font-weight: 600; line-height: 1; letter-spacing: -.06em; }
.overview-grid, .contribution-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(310px, .72fr); gap: clamp(3rem, 10vw, 9rem); align-items: start; }
.long-copy p, .contribution-grid > div:last-child > p { margin: 0 0 1.25rem; color: var(--muted); font-size: 1rem; line-height: 1.8; }
.contribution-section, .clients-section, .evidence-section { border-block: 1px solid var(--line-soft); background: var(--bg-soft); }
.contribution-list { margin: 2rem 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.contribution-list li { position: relative; padding: .85rem 0 .85rem 1.2rem; border-bottom: 1px solid var(--line-soft); color: var(--muted); font-size: .84rem; }
.contribution-list li::before { content: "↳"; position: absolute; left: 0; color: var(--lime); font-family: var(--mono); }

.section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .45fr); gap: 3rem; align-items: end; margin-bottom: clamp(2.5rem, 6vw, 4.5rem); }
.section-heading > p { max-width: 440px; justify-self: end; margin: 0; color: var(--muted); font-size: .91rem; line-height: 1.75; }
.architecture-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr auto 1fr; align-items: stretch; border: 1px solid var(--line); border-radius: 1rem; background: var(--panel); overflow: hidden; }
.architecture-flow > div { min-width: 0; min-height: 220px; padding: 1.3rem; }
.architecture-flow > i { display: grid; place-items: center; width: 1.2rem; color: var(--lime); font: normal .8rem/1 var(--mono); }
.architecture-flow span { color: var(--lime); font: 500 .55rem/1.4 var(--mono); }
.architecture-flow small { display: block; margin-top: 3.5rem; color: var(--quiet); font: 500 .5rem/1.4 var(--mono); letter-spacing: .07em; }
.architecture-flow strong { display: block; margin-top: .45rem; font-size: .93rem; line-height: 1.25; }
.architecture-flow p { margin: .7rem 0 0; color: var(--quiet); font-size: .69rem; line-height: 1.5; }

.client-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.client-grid article { min-height: 410px; padding: 1.7rem; border: 1px solid var(--line); border-radius: .85rem; background: var(--panel); }
.client-grid article:first-child { border-top-color: var(--orange); }
.client-grid article:nth-child(2) { border-top-color: var(--blue); }
.client-grid article:last-child { border-top-color: var(--cyan); }
.client-grid article > span, .decision-grid article > span { color: var(--quiet); font: 500 .55rem/1.4 var(--mono); }
.client-grid h3 { margin: 3.2rem 0 1rem; font-size: 1.45rem; letter-spacing: -.04em; }
.client-grid p { color: var(--muted); font-size: .83rem; line-height: 1.7; }
.client-grid ul { margin: 2rem 0 0; padding: 0; list-style: none; }
.client-grid li { padding: .6rem 0; border-top: 1px solid var(--line-soft); color: var(--quiet); font: 500 .55rem/1.4 var(--mono); text-transform: uppercase; }

.decision-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.decision-grid article { min-height: 250px; padding: 1.5rem; border: 1px solid var(--line); border-radius: .8rem; background: var(--panel); }
.decision-grid h3 { margin: 3rem 0 .75rem; font-size: 1.05rem; letter-spacing: -.025em; }
.decision-grid p { margin: 0; color: var(--muted); font-size: .78rem; line-height: 1.7; }

.evidence-layout { display: grid; grid-template-columns: minmax(0, .8fr) minmax(420px, 1fr); gap: clamp(3rem, 8vw, 7rem); align-items: start; }
.evidence-layout > div:first-child > p:not(.section-number) { max-width: 520px; margin: 1.5rem 0 2rem; color: var(--muted); font-size: .9rem; line-height: 1.75; }
.check-row { display: flex; justify-content: space-between; gap: 1rem; padding: .7rem 0; border-top: 1px solid var(--line-soft); color: var(--muted); font-size: .72rem; }
.check-row strong { color: var(--lime); font: 500 .52rem/1.4 var(--mono); }
.evidence-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin: 0; }
.evidence-cards div { min-height: 205px; padding: 1.5rem; border: 1px solid var(--line); border-radius: .8rem; background: var(--panel); }
.evidence-cards dt { color: var(--lime); font-size: clamp(2.3rem, 5vw, 4.2rem); font-weight: 600; line-height: 1; letter-spacing: -.06em; }
.evidence-cards dd { margin: 2rem 0 0; color: var(--muted); font-size: .76rem; line-height: 1.65; }

.scope-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.scope-grid article { padding: 1.7rem; border: 1px solid var(--line); border-radius: .8rem; background: var(--panel); }
.scope-label { margin: 0 0 1.5rem; color: var(--lime); font: 500 .58rem/1.4 var(--mono); letter-spacing: .07em; }
.scope-grid ul { margin: 0; padding: 0; list-style: none; }
.scope-grid li { position: relative; padding: .75rem 0 .75rem 1.15rem; border-top: 1px solid var(--line-soft); color: var(--muted); font-size: .82rem; }
.scope-grid li::before { content: "+"; position: absolute; left: 0; color: var(--lime); font-family: var(--mono); }
.scope-grid article:last-child li::before { content: "·"; color: var(--quiet); }

.case-cta { padding-block: clamp(6rem, 12vw, 10rem); background: var(--lime); color: #071012; }
.case-cta .section-number { color: rgba(7,16,18,.62); }
.case-cta h2 { max-width: 930px; }
.case-cta .button-primary { border-color: #071012; background: #071012; color: var(--lime); }
.case-cta .button-secondary { border-color: rgba(7,16,18,.35); color: #071012; background: transparent; }
.case-cta .text-link { color: #071012; border-color: rgba(7,16,18,.55); }
footer { padding-block: 1.5rem; background: #04090a; }
footer .case-shell { display: flex; justify-content: space-between; gap: 1rem; color: var(--quiet); font: 500 .56rem/1.5 var(--mono); letter-spacing: .04em; text-transform: uppercase; }
footer a { color: var(--muted); text-decoration: none; }

@media (max-width: 980px) {
  .hero-layout { grid-template-columns: 1fr; }
  .system-panel { min-height: auto; }
  .architecture-flow { grid-template-columns: 1fr; }
  .architecture-flow > div { min-height: auto; }
  .architecture-flow > i { width: auto; height: 1.5rem; transform: rotate(90deg); }
  .architecture-flow small { margin-top: 2rem; }
  .client-grid { grid-template-columns: 1fr; }
  .client-grid article { min-height: auto; }
  .decision-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .case-header { height: 64px; }
  .case-brand strong, .case-nav nav > a:not(.nav-source) { display: none; }
  .case-hero { padding-top: 8.5rem; }
  .evidence-strip { grid-template-columns: repeat(2, 1fr); }
  .evidence-strip div:nth-child(3) { border-top: 1px solid var(--line); border-left: 0; }
  .evidence-strip div:nth-child(4) { border-top: 1px solid var(--line); }
  .overview-grid, .contribution-grid, .section-heading, .evidence-layout { grid-template-columns: 1fr; gap: 1.8rem; }
  .section-heading > p { justify-self: start; }
  .decision-grid, .scope-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  h1 { font-size: 5.2rem; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .system-core { width: 210px; min-height: 210px; }
  .system-clients { grid-template-columns: 1fr; }
  .evidence-strip { grid-template-columns: 1fr; }
  .evidence-strip div + div { border-top: 1px solid var(--line); border-left: 0; }
  .evidence-cards { grid-template-columns: 1fr; }
  footer .case-shell { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}