:root {
  color-scheme: dark;
  --bg: #060910;
  --panel: #0e1526;
  --panel-soft: rgba(14, 21, 38, 0.76);
  --line: rgba(116, 154, 203, 0.18);
  --line-bright: rgba(0, 212, 255, 0.38);
  --cyan: #00d4ff;
  --cyan-soft: #8cecff;
  --amber: #ffc266;
  --green: #74f3bb;
  --ink: #eef7ff;
  --muted: #8d9cb2;
  --muted-bright: #bdcadd;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 50% -12%, rgba(22, 72, 114, 0.68), transparent 36rem),
    linear-gradient(rgba(74, 115, 162, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74, 115, 162, 0.035) 1px, transparent 1px),
    var(--bg);
  background-size: auto, 72px 72px, 72px 72px, auto;
  font-family: var(--font-sans);
  line-height: 1.5;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
.shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.skip-link {
  position: fixed;
  top: -5rem;
  left: 1rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  color: #021118;
  background: var(--cyan);
}
.skip-link:focus { top: 1rem; }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 4px; }

.site-header {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 11px; font: 700 0.86rem/1 var(--font-mono); letter-spacing: 0.13em; }
.brand-mark {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  color: var(--cyan);
  border: 1px solid rgba(0, 212, 255, 0.56);
  clip-path: polygon(18% 0, 100% 0, 100% 82%, 82% 100%, 0 100%, 0 18%);
  box-shadow: inset 0 0 14px rgba(0, 212, 255, 0.12);
}
nav { display: flex; gap: clamp(1rem, 3vw, 2.4rem); color: var(--muted-bright); font-size: 0.8rem; }
nav a:hover, .footer a:hover { color: var(--cyan); }

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0 1.3rem;
  border: 1px solid transparent;
  font: 700 0.68rem/1 var(--font-mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  transition: transform 160ms ease, background 160ms ease, box-shadow 160ms ease;
}
.button:hover { transform: translateY(-2px); }
.button-small { min-height: 38px; padding-inline: 1rem; }
.button-primary { color: #031118; background: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 28px rgba(0, 212, 255, 0.16); }
.button-primary:hover { background: #63e8ff; box-shadow: 0 0 38px rgba(0, 212, 255, 0.28); }
.button-ghost { color: var(--cyan-soft); border-color: var(--line-bright); background: rgba(0, 212, 255, 0.035); }
.button-quiet { min-height: 42px; padding-inline: 0; color: var(--muted-bright); }

.hero {
  min-height: 690px;
  padding: 6.5rem 0 5rem;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 2.5rem;
}
.hero-copy { position: relative; z-index: 2; }
.eyebrow, .kicker { color: var(--cyan); font: 700 0.64rem/1.5 var(--font-mono); letter-spacing: 0.18em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 0.65rem; }
.pulse-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(116, 243, 187, 0.08), 0 0 14px var(--green); animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: 0.48; box-shadow: 0 0 0 9px rgba(116, 243, 187, 0); } }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 840px; margin: 1.5rem 0; font-size: clamp(3rem, 5.7vw, 5rem); line-height: 0.99; letter-spacing: -0.055em; font-weight: 600; text-wrap: balance; }
.hero-lede { max-width: 680px; color: var(--muted-bright); font-size: 1.05rem; line-height: 1.75; }
.hero-actions { display: flex; gap: 1.5rem; margin-top: 2.5rem; align-items: center; }
.trust-row { margin-top: 4rem; display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; color: #718098; font: 700 0.58rem/1 var(--font-mono); letter-spacing: 0.15em; text-transform: uppercase; }
.trust-row i { width: 3px; height: 3px; background: #536177; border-radius: 50%; }

.frame-orbit { position: relative; aspect-ratio: 1; }
.frame-orbit::before, .frame-orbit::after { content: ""; position: absolute; border-radius: 50%; inset: 12%; border: 1px solid rgba(0, 212, 255, 0.1); box-shadow: inset 0 0 70px rgba(0, 212, 255, 0.04), 0 0 90px rgba(59, 41, 165, 0.08); }
.frame-orbit::after { inset: 31%; background: radial-gradient(circle, rgba(0, 212, 255, 0.1), transparent 68%); }
.orbit { position: absolute; inset: 13%; border: 1px solid rgba(109, 141, 185, 0.25); border-radius: 50%; animation: spin 18s linear infinite; }
.orbit-inner { inset: 26%; animation-duration: 11s; animation-direction: reverse; border-style: dashed; }
.orbit span { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); top: 8%; left: 21%; box-shadow: 0 0 16px var(--cyan); }
.orbit-inner span { top: auto; left: auto; right: 19%; bottom: 8%; background: var(--amber); box-shadow: 0 0 16px var(--amber); }
@keyframes spin { to { transform: rotate(360deg); } }
.orbit-core { position: absolute; inset: 37%; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px solid var(--line-bright); background: rgba(6, 12, 22, 0.92); clip-path: polygon(20% 0, 80% 0, 100% 20%, 100% 80%, 80% 100%, 20% 100%, 0 80%, 0 20%); }
.orbit-core strong { color: var(--cyan); font: 500 clamp(2rem, 4vw, 3.6rem)/1 var(--font-mono); }
.orbit-core small { margin-top: 0.4rem; color: var(--muted); font: 700 0.44rem/1 var(--font-mono); letter-spacing: 0.2em; }
.coordinate { position: absolute; padding-left: 0.75rem; border-left: 1px solid var(--line-bright); color: #617087; font: 700 0.46rem/1.8 var(--font-mono); letter-spacing: 0.13em; }
.coordinate strong { color: var(--cyan-soft); font-size: 0.75rem; }
.coordinate-one { left: 1%; top: 24%; }
.coordinate-two { right: 0; bottom: 23%; }
.boundary-line { position: absolute; top: 17%; bottom: 17%; left: 50%; width: 1px; border-left: 1px dashed rgba(255, 194, 102, 0.32); transform: rotate(34deg); }

.status-strip { min-height: 155px; display: grid; grid-template-columns: 1.3fr repeat(3, 1fr); align-items: center; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.status-intro { display: flex; flex-direction: column; gap: 0.45rem; font-family: var(--font-mono); }
.status-intro span { font-size: 0.67rem; letter-spacing: 0.15em; text-transform: uppercase; }
.status-intro small { color: var(--amber); font-size: 0.5rem; letter-spacing: 0.12em; text-transform: uppercase; }
.status-item { padding-left: 2rem; border-left: 1px solid var(--line); display: grid; grid-template-columns: 1fr auto; align-items: end; }
.status-item span { grid-column: 1 / -1; color: var(--muted); font-size: 0.7rem; }
.status-item strong { margin-top: 0.4rem; font: 500 clamp(1.2rem, 2vw, 1.8rem)/1 var(--font-mono); }
.status-item small { color: var(--green); font: 700 0.55rem/1 var(--font-mono); text-transform: uppercase; }

.section { padding: 7rem 0; }
.section-heading { display: grid; grid-template-columns: 1fr 390px; align-items: end; gap: 3.75rem; margin-bottom: 3rem; }
.section-heading h2, .closing h2, .boundary-layout h2 { margin: 0.5rem 0 0; font-size: clamp(2.2rem, 4vw, 3.3rem); line-height: 1.05; letter-spacing: -0.04em; font-weight: 550; text-wrap: balance; }
.section-heading > p { margin: 0; color: var(--muted); font-size: 0.88rem; line-height: 1.75; }
.card-grid { display: grid; gap: 1rem; }
.product-grid { grid-template-columns: repeat(3, 1fr); }
.feature-card { min-height: 340px; padding: 2rem; border: 1px solid var(--line); background: linear-gradient(145deg, rgba(15, 24, 43, 0.9), rgba(7, 12, 23, 0.9)); }
.card-index { color: var(--cyan); font: 700 0.58rem/1 var(--font-mono); letter-spacing: 0.14em; }
.feature-glyph { width: 54px; height: 54px; margin: 3rem 0; border: 1px solid var(--line-bright); background: repeating-linear-gradient(90deg, transparent 0 7px, rgba(0, 212, 255, 0.08) 7px 8px), repeating-linear-gradient(0deg, transparent 0 7px, rgba(0, 212, 255, 0.08) 7px 8px); transform: rotate(45deg); }
.glyph-observe { border-radius: 50%; }
.glyph-verify { border-radius: 50% 0 50% 0; transform: none; }
.feature-card h3 { margin-bottom: 0.75rem; font-size: 1.35rem; font-weight: 550; }
.feature-card p { color: var(--muted); font-size: 0.82rem; line-height: 1.75; }

.scenario-section { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(9, 14, 25, 0.78); }
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); }
.scenario-grid article { min-height: 220px; padding: 1.8rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.scenario-grid article:nth-child(3n) { border-right: 0; }
.scenario-grid article:nth-child(n+4) { border-bottom: 0; }
.scenario-grid span { color: var(--cyan); font: 700 0.56rem/1 var(--font-mono); }
.scenario-grid h3 { margin: 2.8rem 0 0.65rem; font-size: 1.1rem; font-weight: 550; }
.scenario-grid p { color: var(--muted); font-size: 0.78rem; line-height: 1.7; }

.evidence-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 1rem; }
.terminal, .evidence-copy { border: 1px solid var(--line); background: rgba(8, 14, 25, 0.9); }
.terminal-bar { min-height: 48px; display: flex; align-items: center; gap: 0.4rem; padding: 0 1rem; border-bottom: 1px solid var(--line); }
.terminal-bar i { width: 6px; height: 6px; border: 1px solid #607086; border-radius: 50%; }
.terminal-bar span { margin-left: auto; color: var(--muted); font: 700 0.5rem/1 var(--font-mono); letter-spacing: 0.13em; }
.terminal pre { margin: 0; min-height: 260px; padding: 2rem; overflow: auto; color: var(--muted-bright); font: 0.78rem/1.9 var(--font-mono); }
.terminal code span { color: var(--cyan); }
.evidence-copy { padding: clamp(2rem, 4vw, 3.2rem); }
.evidence-label { color: var(--cyan); font: 700 0.56rem/1 var(--font-mono); letter-spacing: 0.13em; }
.evidence-copy > strong { display: block; margin: 1.2rem 0; font: 500 clamp(2rem, 4vw, 3.4rem)/1 var(--font-mono); }
.evidence-copy > p:not(.evidence-label) { color: var(--muted); font-size: 0.85rem; line-height: 1.75; }
.evidence-copy ul { margin: 2rem 0 0; padding: 1.4rem 0 0; list-style: none; border-top: 1px solid var(--line); }
.evidence-copy li { margin: 0.7rem 0; color: var(--muted-bright); font-size: 0.75rem; }
.evidence-copy li::before { content: "✓"; margin-right: 0.7rem; color: var(--cyan); }

.boundaries-section { border-top: 1px solid rgba(255, 194, 102, 0.22); border-bottom: 1px solid rgba(255, 194, 102, 0.22); background: linear-gradient(110deg, rgba(255, 194, 102, 0.04), transparent 60%); }
.boundary-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 6rem; align-items: start; }
.kicker-amber { color: var(--amber); }
.boundary-intro { max-width: 500px; margin-top: 1.5rem; color: var(--muted); line-height: 1.75; }
.boundary-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(255, 194, 102, 0.25); }
.boundary-list li { padding: 1rem 0; border-bottom: 1px solid var(--line); color: var(--muted-bright); font-size: 0.85rem; }
.boundary-list li::before { content: "—"; margin-right: 0.8rem; color: var(--amber); }

.closing { max-width: 820px; text-align: center; }
.closing p:not(.kicker) { max-width: 600px; margin: 1.5rem auto 2rem; color: var(--muted); line-height: 1.75; }
.footer { min-height: 125px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.67rem; }
.footer p { margin: 0; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; color: var(--muted-bright); font-size: 0.67rem; }

.info-main { min-height: calc(100vh - 211px); }
.info-hero { padding: 6rem 0 3.5rem; border-bottom: 1px solid var(--line); }
.info-hero h1 { max-width: 900px; font-size: clamp(2.8rem, 5vw, 4.5rem); }
.info-hero > p:not(.kicker) { max-width: 760px; color: var(--muted-bright); font-size: 1rem; line-height: 1.75; }
.info-section { padding: 4rem 0 6rem; }
.info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.info-panel { padding: 2rem; border: 1px solid var(--line); background: var(--panel-soft); }
.info-panel-wide { grid-column: 1 / -1; }
.info-panel h2 { margin-bottom: 1rem; font-size: 1.35rem; font-weight: 550; }
.info-panel p, .info-panel li { color: var(--muted-bright); font-size: 0.84rem; line-height: 1.75; }
.info-panel ul { margin: 0; padding-left: 1.2rem; }
.info-actions { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: 1rem; }
.status-notice { display: inline-flex; align-items: center; gap: 0.6rem; margin-bottom: 1.5rem; color: var(--amber); font: 700 0.6rem/1.4 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; }
.status-notice::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 14px rgba(255, 194, 102, 0.55); }

@media (max-width: 900px) {
  .site-header nav { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 5rem; }
  .frame-orbit { display: none; }
  .section-heading { grid-template-columns: 1fr; gap: 1.2rem; }
  .section-heading > p { max-width: 620px; }
  .status-strip { grid-template-columns: repeat(3, 1fr); padding: 2rem 0; }
  .status-intro { grid-column: 1 / -1; margin-bottom: 1.5rem; }
  .status-item:first-of-type { padding-left: 0; border-left: 0; }
  .product-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: auto; }
  .scenario-grid { grid-template-columns: repeat(2, 1fr); }
  .scenario-grid article, .scenario-grid article:nth-child(3n), .scenario-grid article:nth-child(n+4) { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .scenario-grid article:nth-child(2n) { border-right: 0; }
  .scenario-grid article:nth-child(n+5) { border-bottom: 0; }
  .evidence-grid { grid-template-columns: 1fr; }
  .boundary-layout { grid-template-columns: 1fr; gap: 3rem; }
  .info-grid { grid-template-columns: 1fr; }
  .info-panel-wide { grid-column: auto; }
}

@media (max-width: 560px) {
  .shell { width: min(100% - 28px, 1180px); }
  .site-header { min-height: 72px; }
  .site-header > .button { display: none; }
  .hero { padding: 4.5rem 0; }
  h1 { font-size: clamp(2.55rem, 13vw, 3.8rem); }
  .hero-lede { font-size: 0.95rem; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button-quiet { padding: 0.7rem 0; }
  .trust-row { margin-top: 3rem; }
  .status-strip { grid-template-columns: 1fr; gap: 1.5rem; }
  .status-intro, .status-item { grid-column: auto; }
  .status-item { padding: 1.3rem 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .section { padding: 4.5rem 0; }
  .section-heading h2, .closing h2, .boundary-layout h2 { font-size: 2.25rem; }
  .scenario-grid { grid-template-columns: 1fr; }
  .scenario-grid article, .scenario-grid article:nth-child(2n), .scenario-grid article:nth-child(n+5) { border-right: 0; border-bottom: 1px solid var(--line); }
  .scenario-grid article:last-child { border-bottom: 0; }
  .terminal pre { padding: 1.2rem; font-size: 0.65rem; }
  .footer { padding: 2.2rem 0; flex-direction: column; align-items: flex-start; }
  .footer-links { flex-direction: column; }
  .info-hero { padding: 4.5rem 0 3rem; }
  .info-section { padding: 3rem 0 4.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}