:root {
  --ink: #071814;
  --forest: #0d2a23;
  --paper: #f2f2ea;
  --muted: #aeb9b3;
  --line: rgba(242, 242, 234, 0.18);
  --acid: #b9f25f;
  --max-width: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: Inter, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.skip-link { position: fixed; left: 1rem; top: -4rem; z-index: 100; background: var(--acid); color: var(--ink); padding: .8rem 1rem; }
.skip-link:focus { top: 1rem; }

.site-header {
  position: fixed; inset: 0 0 auto; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; padding: 1.4rem max(2rem, calc((100vw - var(--max-width)) / 2));
  border-bottom: 1px solid transparent; transition: background .25s, border-color .25s;
}
.site-header.scrolled { background: rgba(7,24,20,.9); border-color: var(--line); backdrop-filter: blur(15px); }
.brand { text-decoration: none; font-size: 1.35rem; font-weight: 800; letter-spacing: -.07em; }
.brand span { color: var(--acid); }
nav { display: flex; align-items: center; gap: 2rem; }
nav a { text-decoration: none; font-size: .75rem; text-transform: uppercase; letter-spacing: .12em; }
nav a:not(.nav-cta):hover { color: var(--acid); }
.nav-cta { padding: .75rem 1rem; border: 1px solid var(--line); }
.nav-cta:hover { border-color: var(--acid); }

.hero {
  max-width: var(--max-width); min-height: 100svh; margin: auto; padding: 10rem 2rem 5rem;
  display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: clamp(3rem, 8vw, 8rem);
}
.eyebrow, .section-label { margin: 0 0 2rem; color: var(--acid); font-size: .7rem; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 700px; margin-bottom: 2rem; font-size: clamp(4rem, 8vw, 7.8rem); line-height: .88; letter-spacing: -.07em; font-weight: 600; }
em { color: var(--acid); font-family: Georgia, serif; font-weight: 400; }
.hero-intro { max-width: 590px; color: var(--muted); font-size: clamp(1.05rem, 1.7vw, 1.35rem); line-height: 1.6; }
.hero-actions { display: flex; align-items: center; gap: 2rem; margin-top: 2.5rem; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: 1rem 1.35rem; text-decoration: none; font-size: .75rem; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--acid); color: var(--ink); }
.text-link { padding-block: .5rem; border-bottom: 1px solid var(--line); text-decoration: none; font-size: .8rem; }
.text-link span { margin-left: .4rem; color: var(--acid); }

.signal-card { min-height: 520px; padding: 1rem; border: 1px solid var(--line); background: linear-gradient(150deg, rgba(185,242,95,.08), transparent 45%), var(--forest); }
.signal-topline, .signal-axis { display: flex; justify-content: space-between; color: var(--muted); font: 600 .58rem/1 monospace; letter-spacing: .12em; }
.signal-topline span:last-child { color: var(--acid); }
.signal-grid { position: relative; min-height: 420px; margin-top: 1rem; padding: 1rem; border: 1px solid rgba(242,242,234,.08); display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; }
.signal-grid::before, .signal-grid::after { content: ""; position: absolute; background: rgba(242,242,234,.08); }
.signal-grid::before { width: 1px; height: 100%; left: 50%; top: 0; }
.signal-grid::after { height: 1px; width: 100%; left: 0; top: 50%; }
.signal-orbit { position: absolute; inset: 50% auto auto 50%; width: 280px; aspect-ratio: 1; transform: translate(-50%,-50%); display: grid; place-items: center; }
.orbit { position: absolute; inset: 0; border: 1px solid rgba(185,242,95,.28); border-radius: 50%; }
.orbit-one { animation: spin 12s linear infinite; border-top-color: var(--acid); }
.orbit-two { inset: 45px; border-style: dashed; animation: spin 18s linear reverse infinite; }
.signal-core { position: relative; z-index: 2; width: 100px; aspect-ratio: 1; display: grid; place-content: center; text-align: center; background: var(--acid); color: var(--ink); }
.signal-core span { font-size: 2.7rem; line-height: .8; font-weight: 800; letter-spacing: -.08em; }
.signal-core small { margin-top: .4rem; font-size: .55rem; letter-spacing: .25em; }
.signal-card > p { margin: 1.25rem .25rem .25rem; color: var(--muted); font: 600 .63rem/1 monospace; letter-spacing: .16em; }
@keyframes spin { to { transform: rotate(360deg); } }

.section { max-width: var(--max-width); margin: auto; padding: 8rem 2rem; }
.statement { border-top: 1px solid var(--line); }
.statement-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 8vw; }
.statement h2, .section-heading h2, .closing h2 { margin-bottom: 0; font-size: clamp(3rem, 6.5vw, 6rem); line-height: 1; letter-spacing: -.055em; font-weight: 500; }
.statement-copy { padding-top: .75rem; color: var(--muted); font-size: 1.1rem; line-height: 1.7; }
.statement-copy p + p { margin-top: 2rem; }
.capabilities { display: grid; grid-template-columns: .8fr 1.2fr; gap: 8vw; }
.section-heading h2 { max-width: 420px; font-size: clamp(3rem, 5vw, 5rem); }
.capability { display: grid; grid-template-columns: 50px 1fr; gap: 1.2rem; padding: 2rem 0; border-top: 1px solid var(--line); }
.capability:last-child { border-bottom: 1px solid var(--line); }
.capability > span { color: var(--acid); font: .7rem monospace; }
.capability h3 { margin-bottom: .7rem; font-size: 1.45rem; font-weight: 500; }
.capability p { max-width: 500px; margin-bottom: 0; color: var(--muted); line-height: 1.65; }
.closing { max-width: none; padding-inline: max(2rem, calc((100vw - var(--max-width)) / 2)); background: var(--acid); color: var(--ink); }
.closing .section-label { color: var(--ink); opacity: .65; }
.closing h2 { margin-bottom: 3rem; font-size: clamp(4rem, 8vw, 8rem); }
.closing em { color: var(--ink); }
.button-light { background: var(--ink); color: var(--paper); }
footer { max-width: var(--max-width); margin: auto; padding: 3rem 2rem; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; color: var(--muted); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; }
footer p { margin: 0; }
footer p:last-child { text-align: right; }
.brand-footer { color: var(--paper); }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .reveal { opacity: 1; transform: none; transition: none; } .orbit { animation: none; } }

@media (max-width: 820px) {
  nav > a:not(.nav-cta) { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 9rem; }
  .signal-card { min-height: 460px; }
  .signal-grid { min-height: 360px; }
  .statement-grid, .capabilities { grid-template-columns: 1fr; gap: 3rem; }
  footer { grid-template-columns: 1fr auto; gap: 1rem; }
  footer p:nth-child(2) { display: none; }
}
@media (max-width: 520px) {
  .site-header { padding-inline: 1.25rem; }
  .nav-cta { padding: .65rem .75rem; }
  .hero, .section { padding-inline: 1.25rem; }
  h1 { font-size: clamp(3.6rem, 18vw, 5.2rem); }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .signal-card { min-height: 400px; }
  .signal-grid { min-height: 300px; }
  .signal-orbit { width: 220px; }
  .section { padding-block: 6rem; }
  .closing { padding-inline: 1.25rem; }
  footer { padding-inline: 1.25rem; }
}