:root {
  color-scheme: dark;
  --bg: #070b09;
  --surface: #101814;
  --surface-2: #0b110e;
  --line: #202a24;
  --line-strong: #2a3931;
  --text: #eef4f0;
  --muted: #a0aaa4;
  --muted-2: #76827a;
  --green: #12e39a;
  --green-dark: #07281b;
  --page-width: 1210px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body { margin: 0; background: var(--bg); color: var(--text); min-width: 320px; }
img { display: block; max-width: 100%; }
a { color: inherit; }
.container { width: min(var(--page-width), calc(100% - 64px)); margin-inline: auto; }
.section-dark { background: var(--bg); }
.section-tint { background: var(--surface); }

.site-header { height: 84px; background: var(--bg); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(213, 237, 223, .1); }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-size: 24px; font-style: italic; font-weight: 850; letter-spacing: -.065em; }
.brand img { width: 36px; height: 36px; border-radius: 10px; }
.button { min-height: 46px; padding: 0 20px; border: 1px solid transparent; border-radius: 9px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; font-size: 14px; font-weight: 700; text-decoration: none; transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease; }
.button:hover { transform: translateY(-2px); }
.button--primary { color: #03150e; background: var(--green); box-shadow: 0 8px 26px rgba(18, 227, 154, .12); }
.button--primary:hover { background: #39f3ae; box-shadow: 0 10px 30px rgba(18, 227, 154, .2); }
.button--outline { color: var(--text); background: transparent; border-color: #34423a; }
.button--outline:hover { border-color: var(--green); background: rgba(18, 227, 154, .05); }
.button--small { min-height: 40px; padding-inline: 17px; border-radius: 999px; font-size: 13px; }

.hero { overflow: hidden; }
.hero-grid { min-height: 590px; display: grid; grid-template-columns: 1fr 1.04fr; align-items: center; gap: 24px; padding-block: 64px 74px; }
.hero-copy { position: relative; z-index: 1; padding-block: 12px; }
.eyebrow { margin: 0 0 24px; display: flex; align-items: center; gap: 8px; color: #d4ddd7; font-size: 12px; font-weight: 650; letter-spacing: .012em; text-transform: none; }
.eyebrow > span:first-of-type { color: var(--muted); font-weight: 450; text-transform: none; }
.near-wordmark { display: inline-flex; align-items: center; gap: 6px; color: var(--text); font-weight: 700; text-transform: none; }
.near-wordmark img, .network-chip img, .footer-powered img { width: 19px; height: 19px; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 22px; font-size: clamp(50px, 6.3vw, 78px); line-height: .99; letter-spacing: -.065em; font-weight: 760; }
h1 span { color: var(--green); }
.accent-text { color: var(--green); }
.hero-subtitle { max-width: 410px; margin-bottom: 25px; color: var(--muted); font-size: 16px; line-height: 1.55; }
.support-label { margin-bottom: 10px; color: var(--muted-2); font-size: 11px; }
.capability-list { display: flex; flex-wrap: wrap; gap: 10px 18px; margin: 0 0 27px; padding: 0; list-style: none; }
.capability-list li { display: inline-flex; align-items: center; gap: 6px; color: #c6d2ca; font-size: 12px; }
.capability-list img { width: 17px; height: 17px; object-fit: contain; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 11px; }
.play-icon { font-size: 10px; color: var(--green); }
.hero-art { min-width: 0; display: grid; place-items: center; position: relative; }
.hero-art::before { content: ""; position: absolute; inset: 14% 6%; border-radius: 50%; background: rgba(0, 221, 147, .1); filter: blur(70px); }
.hero-art img { position: relative; width: min(100%, 665px); filter: drop-shadow(0 18px 35px rgba(0,0,0,.34)); }

.problems { padding-block: 76px 80px; }
.section-heading { margin-bottom: 33px; }
.eyebrow--green { margin-bottom: 15px; color: var(--green); }
.section-heading h2, .difference h2, .how h2, .video-intro h2, .contact h2 { margin-bottom: 0; font-size: clamp(32px, 4vw, 48px); line-height: 1.08; letter-spacing: -.05em; font-weight: 680; }
.problem-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 15px; }
.problem-card { min-height: 205px; padding: 20px; border: 1px solid var(--line); border-radius: 17px; background: rgba(5, 10, 7, .45); }
.card-icon { width: 40px; height: 40px; margin-bottom: 40px; border-radius: 12px; display: grid; place-items: center; color: var(--green); background: rgba(18, 227, 154, .1); }
.card-icon img { width: 30px; height: 30px; object-fit: contain; }
.problem-card h3 { margin-bottom: 8px; font-size: 15px; letter-spacing: -.02em; }
.problem-card p { max-width: 230px; margin-bottom: 0; color: var(--muted); font-size: 12px; line-height: 1.5; }

.difference { padding-block: 78px 70px; }
.difference-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 58px; }
.difference-visual { align-self: stretch; display: flex; flex-direction: column; align-items: flex-start; }
.difference-visual h2 { margin-bottom: 18px; }
.network-chip { min-height: 30px; padding: 4px 10px; border: 1px solid #1c3e2c; border-radius: 999px; display: inline-flex; align-items: center; gap: 7px; color: #8fa99a; font-size: 10px; }
.network-chip img { width: 16px; height: 16px; }
.spacecraft-art { width: min(100%, 520px); margin: auto auto -12px -28px; }
.feature-column { padding-top: 8px; }
.feature-list { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.feature-list li { min-height: 62px; padding: 12px 15px; border: 1px solid var(--line); border-radius: 12px; display: flex; align-items: center; gap: 13px; background: var(--surface-2); color: #e0e9e3; font-size: 13px; line-height: 1.45; }
.check-icon { width: 22px; height: 22px; flex: 0 0 22px; border-radius: 50%; display: grid; place-items: center; color: #052116; background: var(--green); font-size: 14px; font-weight: 850; }
.prototype-note { margin: 14px 2px 0; color: var(--muted-2); font-size: 11px; line-height: 1.55; }

.how { padding-block: 75px 65px; }
.how-heading { display: grid; grid-template-columns: 1fr .95fr; align-items: end; gap: 35px; margin-bottom: 30px; }
.how-heading h2 { text-transform: none; }
.how-heading > p { max-width: 480px; justify-self: end; margin-bottom: 4px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.protocol-diagram-frame { overflow-x: auto; border-radius: 23px; }
.protocol-diagram { display: block; width: 100%; min-width: 680px; height: auto; border-radius: 23px; }
.how-actions { display: flex; justify-content: center; padding-top: 28px; }

.video-section { padding-block: 82px 92px; }
.video-layout { display: grid; grid-template-columns: .47fr 1.53fr; align-items: center; gap: 55px; }
.video-intro h2 { font-size: clamp(38px, 4.4vw, 54px); }
.video-intro > p:last-child { max-width: 240px; margin: 18px 0 0; color: var(--muted); font-size: 13px; line-height: 1.6; }
.green-plus { display: block; margin-top: 20px; color: var(--green); font-size: 58px; line-height: .7; font-weight: 400; }
.video-frame { position: relative; overflow: hidden; width: 100%; aspect-ratio: 16 / 9; border: 1px solid var(--line-strong); border-radius: 19px; background: #030604; box-shadow: 0 22px 70px rgba(0,0,0,.28); }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

.contact { padding-block: 54px; color: #052016; background: var(--green); }
.contact-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.eyebrow--dark { margin-bottom: 9px; color: rgba(3, 26, 17, .67); }
.contact h2 { font-size: clamp(33px, 4vw, 44px); }
.contact p:last-child { margin: 10px 0 0; color: rgba(3, 26, 17, .75); font-size: 13px; }
.contact-links { display: flex; gap: 13px; }
.contact-links a { width: 54px; height: 54px; border: 1px solid rgba(255,255,255,.1); border-radius: 16px; display: grid; place-items: center; color: var(--green); background: #07110c; transition: transform .18s ease, background .18s ease; }
.contact-links a:hover { transform: translateY(-3px); background: #0e2117; }
.contact-links svg { width: 26px; height: 26px; fill: currentColor; }
.contact-links a:last-child svg { fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.site-footer { min-height: 75px; background: var(--bg); }
.footer-inner { min-height: 75px; display: flex; align-items: center; gap: 26px; }
.footer-brand { font-size: 15px; font-style: italic; font-weight: 850; letter-spacing: -.04em; text-decoration: none; }
.footer-rule { flex: 1; height: 1px; background: rgba(213, 237, 223, .1); }
.footer-powered { display: inline-flex; align-items: center; gap: 7px; color: var(--muted-2); font-size: 10px; letter-spacing: .04em; text-transform: none; }
.footer-powered img { width: 15px; height: 15px; }

@media (max-width: 900px) {
  .container { width: min(var(--page-width), calc(100% - 44px)); }
  .hero-grid { min-height: 520px; grid-template-columns: 1fr .9fr; gap: 8px; padding-block: 56px; }
  h1 { font-size: clamp(48px, 7.2vw, 68px); }
  .problem-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .problem-card { min-height: 185px; }
  .card-icon { margin-bottom: 28px; }
  .difference-grid { gap: 35px; }
  .video-layout { grid-template-columns: .55fr 1.45fr; gap: 30px; }
}

@media (max-width: 640px) {
  html { scroll-padding-top: 72px; }
  .container { width: calc(100% - 36px); }
  .site-header { height: 68px; }
  .brand { gap: 8px; font-size: 21px; }
  .brand img { width: 32px; height: 32px; }
  .button--small { min-height: 37px; padding-inline: 14px; font-size: 12px; }
  .hero-grid { min-height: auto; grid-template-columns: 1fr; gap: 8px; padding-block: 48px 34px; }
  .hero-copy { padding: 0; }
  .eyebrow { flex-wrap: wrap; margin-bottom: 18px; font-size: 10px; }
  h1 { font-size: clamp(48px, 13vw, 66px); }
  .hero-subtitle { max-width: 360px; font-size: 15px; }
  .capability-list { gap: 10px 14px; }
  .hero-art { margin: 4px -12px 0; }
  .hero-art img { width: min(100%, 500px); }
  .problems, .difference, .how { padding-block: 58px; }
  .section-heading { margin-bottom: 24px; }
  .section-heading h2, .difference h2, .how h2 { font-size: 34px; }
  .problem-grid { gap: 10px; }
  .problem-card { min-height: 178px; padding: 15px; border-radius: 14px; }
  .card-icon { width: 35px; height: 35px; margin-bottom: 25px; border-radius: 10px; }
  .problem-card h3 { font-size: 13px; }
  .problem-card p { font-size: 11px; }
  .difference-grid { grid-template-columns: 1fr; gap: 24px; }
  .spacecraft-art { width: min(100%, 450px); margin: 15px auto -10px; }
  .feature-column { padding-top: 0; }
  .feature-list { gap: 8px; }
  .feature-list li { min-height: 58px; font-size: 12px; }
  .how-heading { grid-template-columns: 1fr; gap: 14px; margin-bottom: 23px; }
  .how-heading > p { justify-self: start; margin: 0; font-size: 12px; }
  .protocol-diagram-frame { margin-inline: -2px; border-radius: 14px; }
  .protocol-diagram { min-width: 680px; border-radius: 14px; }
  .how-actions { padding-top: 20px; }
  .video-section { padding-block: 58px 64px; }
  .video-layout { grid-template-columns: 1fr; gap: 25px; }
  .video-intro h2 { font-size: 42px; }
  .video-intro > p:last-child { max-width: 320px; margin-top: 12px; }
  .green-plus { display: inline-block; margin: 0 0 0 9px; font-size: 42px; vertical-align: -3px; }
  .video-frame { border-radius: 13px; }
  .contact { padding-block: 40px; }
  .contact-inner { align-items: flex-start; }
  .contact h2 { font-size: 35px; }
  .contact p:last-child { max-width: 250px; font-size: 12px; line-height: 1.5; }
  .contact-links { gap: 8px; }
  .contact-links a { width: 44px; height: 44px; border-radius: 13px; }
  .contact-links svg { width: 23px; height: 23px; }
  .site-footer, .footer-inner { min-height: 64px; }
  .footer-inner { gap: 15px; }
  .footer-brand { font-size: 13px; }
  .footer-powered { font-size: 8px; }
  .footer-powered img { width: 13px; height: 13px; }
}

@media (max-width: 380px) {
  .container { width: calc(100% - 28px); }
  .hero-actions .button { min-height: 42px; padding-inline: 14px; font-size: 12px; }
  .contact-inner { flex-direction: column; }
  .contact-links { align-self: flex-end; margin-top: -8px; }
}

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