.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  width: 100%;
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition);
}

.site-header.is-scrolled, .site-header.is-menu-open {
  border-color: var(--color-border);
  background: rgba(7, 10, 15, .88);
  backdrop-filter: blur(18px);
}

.nav-shell { display: flex; align-items: center; justify-content: space-between; min-height: 76px; }
.site-nav { display: flex; align-items: center; gap: clamp(.5rem, 1.5vw, 1.35rem); }
.site-nav > a:not(.button) {
  min-height: 44px;
  padding-block: .7rem;
  color: var(--color-text-muted);
  font-size: .84rem;
  font-weight: 600;
  text-decoration: none;
  transition: color var(--transition);
}
.site-nav > a:not(.button):hover { color: var(--color-text); }
.site-nav .button { min-height: 44px; padding: .65rem .85rem; font-size: .78rem; }

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, .02);
}
.nav-toggle span:not(.sr-only) { display: block; width: 20px; height: 1px; margin: 6px auto; background: var(--color-text); transition: transform var(--transition); }
.nav-toggle[aria-expanded="true"] span:nth-last-child(2) { transform: translateY(3.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

.hero { position: relative; min-height: 820px; padding: clamp(9.5rem, 14vw, 12rem) 0 6rem; isolation: isolate; }
.hero::before {
  position: absolute;
  z-index: -2;
  inset: 0;
  background-image: linear-gradient(rgba(148, 163, 184, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(148, 163, 184, .045) 1px, transparent 1px);
  background-size: 80px 80px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}
.hero-ambient {
  position: absolute;
  z-index: -1;
  top: -16rem;
  right: -8rem;
  width: 62rem;
  height: 62rem;
  border-radius: 50%;
  background: radial-gradient(circle at var(--pointer-x, 50%) var(--pointer-y, 50%), rgba(45, 212, 191, .16), rgba(129, 140, 248, .06) 34%, transparent 67%);
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr); align-items: center; gap: clamp(2rem, 5vw, 5rem); }
.hero-copy { position: relative; z-index: 2; }
.hero-lead { max-width: 62ch; margin-bottom: 2rem; color: var(--color-text-soft); font-size: clamp(1.08rem, 2vw, 1.25rem); }
.hero-note { display: flex; align-items: center; gap: .75rem; margin: 2rem 0 0; font-family: var(--font-mono); font-size: .72rem; letter-spacing: .09em; text-transform: uppercase; }

.signal-visual { position: relative; min-width: 0; }
.signal-visual::before { position: absolute; inset: 12% 8%; border-radius: 50%; background: rgba(45, 212, 191, .05); filter: blur(40px); content: ""; }
.signal-visual svg { position: relative; overflow: visible; }
.signal-grid path { fill: none; stroke: rgba(148, 163, 184, .1); stroke-width: 1; }
.signal-line, .signal-glow { fill: none; stroke: url(#signal-gradient); stroke-linecap: round; stroke-width: 3; }
.signal-glow { opacity: .45; stroke-width: 13; }
.signal-line { stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw-signal 1.9s .35s ease forwards; }
.signal-points circle { fill: var(--color-accent); opacity: .55; }
.signal-label { fill: var(--color-text-muted); font: 10px var(--font-mono); letter-spacing: 1.2px; }
@keyframes draw-signal { to { stroke-dashoffset: 0; } }

.proof-strip { border-block: 1px solid var(--color-border); background: rgba(12, 17, 25, .62); }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.proof-grid > div { min-width: 0; padding: 1.6rem clamp(1rem, 2vw, 1.7rem); border-right: 1px solid var(--color-border); }
.proof-grid > div:first-child { padding-left: 0; }
.proof-grid > div:last-child { border: 0; }
.proof-grid strong, .proof-grid span { display: block; }
.proof-grid strong { color: var(--color-text); font-size: .92rem; }
.proof-grid span { margin-top: .2rem; color: var(--color-text-muted); font-size: .75rem; }

.system-pipeline { position: relative; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.system-pipeline::before { position: absolute; top: 4.1rem; right: 7%; left: 7%; height: 1px; background: linear-gradient(90deg, var(--color-accent), var(--color-secondary)); content: ""; opacity: .42; }
.system-card { position: relative; min-width: 0; padding: clamp(1.5rem, 3vw, 2.1rem); border-radius: var(--radius-md); }
.system-card::before { position: absolute; top: 3.7rem; left: 2rem; width: .75rem; height: .75rem; border: 2px solid var(--color-bg-elevated); border-radius: 50%; background: var(--color-accent); box-shadow: 0 0 0 5px rgba(45, 212, 191, .1); content: ""; }
.system-card__top { display: flex; justify-content: space-between; min-height: 5rem; }
.system-number { margin: 0 0 0 1.6rem; }
.system-action { color: var(--color-text-muted); font-family: var(--font-mono); font-size: .7rem; letter-spacing: .11em; text-transform: uppercase; }
.system-card h3 { font-size: clamp(1.8rem, 3vw, 2.6rem); }
.system-card p { margin-bottom: 0; }
.system-loop { max-width: 780px; margin: 2rem auto 0; color: var(--color-text-soft); text-align: center; }

.dashboard { overflow: hidden; border: 1px solid var(--color-border-strong); border-radius: var(--radius-lg); background: #06090e; box-shadow: var(--shadow-panel); }
.dashboard__bar, .dashboard__footer { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .85rem 1rem; border-bottom: 1px solid var(--color-border); background: var(--color-bg-elevated); }
.dashboard__status { display: flex; align-items: center; gap: .7rem; color: var(--color-text-soft); font-family: var(--font-mono); font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; }
.dashboard-tabs { display: flex; gap: .25rem; padding: .2rem; border: 1px solid var(--color-border); border-radius: .65rem; }
.dashboard-tab { min-height: 44px; padding: .35rem .7rem; border: 0; border-radius: .45rem; background: transparent; color: var(--color-text-muted); cursor: pointer; font-family: var(--font-mono); font-size: .68rem; }
.dashboard-tab.is-active { background: rgba(45, 212, 191, .11); color: var(--color-accent-bright); }
.dashboard__viewport {
  position: relative;
  /* Chart panel height — not cinematic 16:9; JARVIS embed fills this box. */
  height: clamp(28rem, 52vh, 40rem);
  min-height: 28rem;
}
.dashboard iframe { position: absolute; z-index: 2; inset: 0; width: 100%; height: 100%; border: 0; opacity: 0; transition: opacity 300ms ease; }
.dashboard iframe.is-loaded { opacity: 1; }
.dashboard-skeleton { position: absolute; inset: 0; display: grid; align-content: end; gap: 12%; padding: 10%; background: linear-gradient(110deg, #090e15 8%, #111925 18%, #090e15 33%); background-size: 200% 100%; animation: shimmer 1.6s linear infinite; }
.dashboard-skeleton span { height: 1px; background: rgba(45, 212, 191, .3); transform-origin: left; transform: scaleX(.75); }
.dashboard-skeleton span:nth-child(2) { transform: scaleX(.92) translateY(-60px) rotate(-3deg); }
.dashboard-skeleton span:nth-child(3) { transform: scaleX(.6) translateY(-110px) rotate(2deg); }
.dashboard.is-loaded .dashboard-skeleton { display: none; }
@keyframes shimmer { to { background-position-x: -200%; } }
.dashboard__footer { align-items: flex-start; border-top: 1px solid var(--color-border); border-bottom: 0; }
.dashboard__footer p { max-width: 65ch; margin: 0; font-size: .78rem; }
.dashboard__footer a { display: inline-flex; flex: none; align-items: center; min-height: 44px; color: var(--color-accent-bright); font-size: .78rem; font-weight: 700; text-decoration: none; }
.dashboard-fallback { position: absolute; z-index: 3; inset: 0; display: grid; place-items: center; padding: 2rem; background: var(--color-bg); text-align: center; }

.capability-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--color-border); }
.capability { min-width: 0; padding: clamp(1.5rem, 4vw, 2.5rem) 0; border-bottom: 1px solid var(--color-border); }
.capability:nth-child(odd) { padding-right: clamp(1.5rem, 5vw, 4rem); border-right: 1px solid var(--color-border); }
.capability:nth-child(even) { padding-left: clamp(1.5rem, 5vw, 4rem); }
.capability h3 { max-width: 22ch; }
.capability p { max-width: 54ch; margin-bottom: 0; }

.performance-grid { display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: clamp(2rem, 7vw, 6rem); }
.performance .section-heading { margin-bottom: 0; }
.brief-card { padding: clamp(1.5rem, 4vw, 2.7rem); border-radius: var(--radius-lg); }
.brief-card__label { color: var(--color-accent); font-family: var(--font-mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; }
.brief-card h3 { margin-top: 2rem; font-size: clamp(1.7rem, 3vw, 2.4rem); }
.brief-card .button { width: 100%; margin-top: .7rem; }
.brief-card small { display: block; margin-top: 1.2rem; color: var(--color-text-muted); line-height: 1.5; }

.application-list { border-top: 1px solid var(--color-border); }
.application { display: grid; grid-template-columns: minmax(3rem, .25fr) 1.75fr; gap: 1rem; padding: 2rem 0; border-bottom: 1px solid var(--color-border); }
.application > span { color: var(--color-accent); font-family: var(--font-mono); font-size: .75rem; }
.application h3 { margin-bottom: .4rem; }
.application p { max-width: 62ch; margin-bottom: 0; }
.section-action { margin-top: 2rem; }

.team-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; max-width: 800px; }
.team-card { display: flex; align-items: center; gap: 1.2rem; min-width: 0; padding: 1.3rem; border-radius: var(--radius-md); }
.team-monogram { display: grid; flex: 0 0 64px; height: 64px; place-items: center; border: 1px solid var(--color-border-active); border-radius: 50%; background: rgba(45, 212, 191, .05); color: var(--color-accent-bright); font-family: var(--font-mono); font-size: .8rem; }
.team-card h3 { margin-bottom: .25rem; font-size: 1.2rem; }
.team-card p { margin-bottom: 0; font-size: .85rem; }

.final-cta { padding-top: 2rem; }
.final-cta__inner { position: relative; overflow: hidden; margin-top: 2rem; padding: clamp(2rem, 7vw, 5rem); border: 1px solid var(--color-border-active); border-radius: var(--radius-lg); background: radial-gradient(circle at 90% 0%, rgba(45, 212, 191, .13), transparent 44%), var(--color-bg-elevated); }
.final-cta__inner h2 { max-width: 18ch; }
.final-cta__inner > p:not(.eyebrow) { max-width: 63ch; font-size: 1.08rem; }
.final-cta__inner .button-row { margin-top: 2rem; }

.site-footer { padding: 4rem 0 2rem; border-top: 1px solid var(--color-border); background: #05070b; }
.footer-top { display: grid; grid-template-columns: 1.5fr .7fr 1fr; gap: 2rem; padding-bottom: 3rem; }
.footer-brand p { max-width: 38ch; margin: 1rem 0 0; font-size: .84rem; }
.footer-nav, .footer-contact { display: flex; align-items: flex-start; flex-direction: column; gap: .35rem; }
.footer-nav a, .footer-contact a, .footer-contact span { display: flex; align-items: center; min-height: 44px; color: var(--color-text-muted); font-size: .82rem; text-decoration: none; }
.footer-nav a:hover, .footer-contact a:hover { color: var(--color-text); }
.footer-contact span { color: var(--color-text); font-weight: 700; }
.risk { padding: 1.5rem 0; border-block: 1px solid var(--color-border); font-size: .72rem; line-height: 1.7; }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; padding-top: 1.5rem; color: var(--color-text-muted); font-family: var(--font-mono); font-size: .67rem; letter-spacing: .04em; text-transform: uppercase; }

.privacy-hero { padding: 11rem 0 4rem; border-bottom: 1px solid var(--color-border); background: radial-gradient(circle at 75% 10%, rgba(45, 212, 191, .08), transparent 32rem); }
.privacy-hero h1 { max-width: 12ch; font-size: clamp(2.7rem, 6vw, 4.8rem); }
.legal-content { max-width: 760px; padding-block: clamp(4rem, 9vw, 7rem); }
.legal-content section + section { margin-top: 3rem; }
.legal-content h2 { max-width: none; font-size: 1.55rem; }
.legal-content a { color: var(--color-accent-bright); }

@media (max-width: 980px) {
  .js .nav-toggle { display: block; }
  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem var(--gutter) 1.4rem;
    border-bottom: 1px solid var(--color-border);
    background: rgba(7, 10, 15, .97);
    box-shadow: 0 20px 50px rgba(0, 0, 0, .3);
  }
  .js .site-nav { display: none; }
  .js .site-nav.is-open { display: flex; }
  .site-nav > a:not(.button) { display: flex; align-items: center; padding: .55rem; }
  .site-nav .button { min-height: 46px; }
  .hero-grid { grid-template-columns: 1fr; }
  .signal-visual { width: min(100%, 620px); margin: -2rem auto 0; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .proof-grid > div { border-bottom: 1px solid var(--color-border); }
  .proof-grid > div:nth-child(2) { border-right: 0; }
  .proof-grid > div:nth-last-child(-n+2) { border-bottom: 0; }
  .proof-grid > div:nth-child(3) { padding-left: 0; }
  .system-pipeline { grid-template-columns: 1fr; }
  .system-pipeline::before { top: 4rem; bottom: 4rem; left: 2.4rem; width: 1px; height: auto; }
  .system-card { padding-left: 3.4rem; }
  .system-card::before { left: 2rem; }
  .performance-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .hero { min-height: auto; padding-bottom: 4rem; }
  .signal-visual { margin-top: -1rem; }
  .proof-grid { grid-template-columns: 1fr; }
  .proof-grid > div, .proof-grid > div:first-child, .proof-grid > div:nth-child(3) { padding: 1.1rem 0; border-right: 0; border-bottom: 1px solid var(--color-border); }
  .proof-grid > div:last-child { border-bottom: 0; }
  .dashboard__bar, .dashboard__footer { align-items: stretch; flex-direction: column; }
  .dashboard-tabs { width: 100%; }
  .dashboard-tab { flex: 1; }
  .dashboard__viewport {
    height: clamp(22rem, 58vh, 32rem);
    min-height: 22rem;
  }
  .dashboard__footer a { min-height: 44px; padding-top: .6rem; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability:nth-child(odd), .capability:nth-child(even) { padding-inline: 0; border-right: 0; }
  .application { grid-template-columns: 2.5rem 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 380px) {
  .brand { font-size: .78rem; }
  .brand-mark { width: 32px; height: 32px; }
  .system-card { padding-left: 2.8rem; }
  .system-card::before { left: 1.55rem; }
  .system-pipeline::before { left: 1.92rem; }
}