:root {
  --color-bg: #0b1110;
  --color-surface: #111a18;
  --color-surface-alt: #182622;
  --color-text: #eaf5ef;
  --color-muted: #94aaa1;
  --color-primary: #5ef2b6;
  --color-primary-dark: #1fa777;
  --color-secondary: #ffb84d;
  --color-accent: #ff5d6c;
  --color-border: #2d443d;
  --font-heading: "Arial Narrow", "Inter Tight", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "SFMono-Regular", "Cascadia Code", "Roboto Mono", Consolas, monospace;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 30px;
  --shadow-soft: 0 24px 70px rgba(0, 0, 0, .35);
  --container: min(1180px, calc(100vw - 32px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 78% 8%, rgba(94, 242, 182, .13), transparent 32rem),
    radial-gradient(circle at 12% 2%, rgba(255, 184, 77, .08), transparent 27rem),
    linear-gradient(180deg, #0b1110 0%, #0e1514 38%, #0b1110 100%);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.65;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .18;
  background-image:
    linear-gradient(rgba(94, 242, 182, .16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(94, 242, 182, .10) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.95), transparent 75%);
  z-index: -1;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: #91ffd4; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 4px;
}
img { max-width: 100%; display: block; }
p { margin: 0 0 1rem; color: #cfe0d8; }
strong { color: #fff; }
small, .small { color: var(--color-muted); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11,17,16,.82);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(94, 242, 182, .14);
}
.header-inner {
  width: var(--container);
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
  font-family: var(--font-heading);
  letter-spacing: .08em;
  text-transform: uppercase;
  font-weight: 800;
}
.logo img { width: 34px; height: 34px; }
.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}
.nav-list a {
  display: inline-flex;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: #d4e7df;
  font-size: .94rem;
}
.nav-list a:hover, .nav-list a[aria-current="page"] {
  border-color: rgba(94,242,182,.26);
  background: rgba(94,242,182,.08);
  color: #fff;
}

.container { width: var(--container); margin: 0 auto; }
.section { padding: 78px 0; }
.section.compact { padding: 52px 0; }
.section-title {
  margin: 0 0 18px;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 4.4rem);
  line-height: .98;
  letter-spacing: -.04em;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--color-secondary);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .78rem;
}
.eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: currentColor;
}
.lead {
  max-width: 760px;
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  color: #d9ebe3;
}
.kicker {
  font-family: var(--font-mono);
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: .76rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid rgba(94,242,182,.3);
  border-radius: 999px;
  background: rgba(94, 242, 182, .1);
  color: #eafff7;
  font-weight: 700;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.btn:hover { transform: translateY(-2px); border-color: rgba(94,242,182,.7); background: rgba(94,242,182,.18); color: #fff; }
.btn.primary { background: var(--color-primary); color: #06231a; border-color: var(--color-primary); box-shadow: 0 0 0 6px rgba(94,242,182,.08); }
.btn.primary:hover { background: #7dffc8; color: #031a13; }
.btn.warn { border-color: rgba(255,93,108,.5); background: rgba(255,93,108,.1); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }

.hero { padding: 72px 0 80px; overflow: hidden; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(330px, .95fr);
  gap: 42px;
  align-items: center;
}
.hero h1 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(3rem, 8vw, 7.8rem);
  line-height: .86;
  letter-spacing: -.075em;
  text-transform: uppercase;
}
.hero h1 .line-muted { color: rgba(234,245,239,.38); }
.hero-copy { margin-top: 24px; max-width: 700px; font-size: 1.15rem; color: #d6e8df; }
.hero-note {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  max-width: 760px;
}
.note-cell {
  position: relative;
  min-height: 88px;
  padding: 16px;
  border: 1px solid rgba(94,242,182,.18);
  background: rgba(17,26,24,.72);
  border-radius: var(--radius-sm);
}
.note-cell b { display: block; color: #fff; font-family: var(--font-mono); font-size: .85rem; }
.note-cell span { display: block; margin-top: 8px; color: var(--color-muted); font-size: .9rem; }

.airlock-panel {
  position: relative;
  padding: 22px;
  min-height: 560px;
  border: 1px solid rgba(94,242,182,.26);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(94,242,182,.1), rgba(255,184,77,.05) 45%, rgba(255,93,108,.07)),
    var(--color-surface);
  box-shadow: var(--shadow-soft), inset 0 0 0 1px rgba(255,255,255,.03);
  overflow: hidden;
}
.airlock-panel::before {
  content: "";
  position: absolute;
  inset: 28px;
  border: 1px dashed rgba(94,242,182,.24);
  border-radius: 26px;
}
.airlock-panel::after {
  content: "AIBLOCK TRAFFIC AIRLOCK";
  position: absolute;
  right: 24px;
  bottom: 18px;
  color: rgba(234,245,239,.18);
  font-family: var(--font-mono);
  letter-spacing: .18em;
  font-size: .72rem;
}
.airlock-visual { position: absolute; inset: 78px 36px 120px; display: grid; place-items: center; }
.airlock-visual img { width: 86%; filter: drop-shadow(0 22px 35px rgba(0,0,0,.35)); }
.gate-status {
  position: absolute;
  left: 24px;
  right: 24px;
  top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: #dff8ee;
}
.led { display: inline-flex; align-items: center; gap: 8px; }
.led::before { content:""; width: 10px; height: 10px; border-radius: 50%; background: var(--color-primary); box-shadow: 0 0 16px var(--color-primary); }
.gate-metrics {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 46px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.metric {
  padding: 14px 12px;
  border-radius: 16px;
  background: rgba(6,13,12,.72);
  border: 1px solid rgba(94,242,182,.18);
}
.metric strong { display:block; font-family: var(--font-heading); font-size: 1.6rem; line-height: 1; }
.metric span { color: var(--color-muted); font-family: var(--font-mono); font-size: .74rem; }
.packet-strip {
  position: absolute;
  inset: auto 28px 175px 28px;
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 7px;
}
.packet-strip i {
  height: 11px;
  border-radius: 999px;
  background: rgba(94,242,182,.45);
  box-shadow: 0 0 18px rgba(94,242,182,.25);
}
.packet-strip i:nth-child(2), .packet-strip i:nth-child(7) { background: rgba(255,93,108,.65); }
.packet-strip i:nth-child(4) { background: rgba(255,184,77,.72); }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.card {
  position: relative;
  padding: 24px;
  border: 1px solid rgba(94,242,182,.16);
  background: linear-gradient(180deg, rgba(24,38,34,.86), rgba(17,26,24,.88));
  border-radius: var(--radius-md);
  overflow: hidden;
}
.card h3 { margin: 0 0 12px; font-size: 1.35rem; line-height: 1.2; }
.card::before {
  content:"";
  position:absolute;
  left:0;
  top:0;
  width: 4px;
  height: 100%;
  background: linear-gradient(var(--color-primary), transparent);
  opacity:.55;
}
.card.danger::before { background: linear-gradient(var(--color-accent), transparent); }
.card.amber::before { background: linear-gradient(var(--color-secondary), transparent); }
.card.clean::before { background: linear-gradient(#8efbd1, transparent); }

.threat-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 4px 5px 6px 0;
  padding: 8px 11px;
  border-radius: 999px;
  border: 1px solid rgba(255,93,108,.32);
  background: rgba(255,93,108,.08);
  color: #ffd2d7;
  font-family: var(--font-mono);
  font-size: .78rem;
}
.threat-chip.clean { border-color: rgba(94,242,182,.32); background: rgba(94,242,182,.08); color: #c9ffe9; }
.threat-chip.warn { border-color: rgba(255,184,77,.35); background: rgba(255,184,77,.08); color: #ffe3b2; }
.threat-chip::before { content: "×"; color: var(--color-accent); font-weight: 900; }
.threat-chip.clean::before { content:"✓"; color: var(--color-primary); }
.threat-chip.warn::before { content:"?"; color: var(--color-secondary); }

.quarantine-ledger {
  border: 1px solid rgba(94,242,182,.18);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(9,14,13,.48);
}
.ledger-row {
  display: grid;
  grid-template-columns: 1.2fr .7fr .8fr;
  gap: 12px;
  align-items: center;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(94,242,182,.12);
  font-family: var(--font-mono);
  font-size: .86rem;
}
.ledger-row:last-child { border-bottom: 0; }
.ledger-row .blocked { color: #ff9aa4; }
.ledger-row .released { color: #9cffd8; }
.ledger-row .review { color: #ffd690; }

.signal-radar {
  position: relative;
  min-height: 360px;
  border: 1px solid rgba(94,242,182,.2);
  border-radius: 50%;
  background:
    radial-gradient(circle, transparent 0 23%, rgba(94,242,182,.08) 24% 25%, transparent 26% 48%, rgba(94,242,182,.08) 49% 50%, transparent 51%),
    conic-gradient(from 0deg, rgba(94,242,182,.28), transparent 24%, rgba(255,93,108,.12) 36%, transparent 58%, rgba(255,184,77,.12) 73%, transparent 100%);
  box-shadow: inset 0 0 70px rgba(94,242,182,.05);
  overflow: hidden;
}
.signal-radar::before {
  content:"";
  position:absolute;
  inset: 50% auto auto 50%;
  width: 50%;
  height: 2px;
  background: linear-gradient(90deg, rgba(94,242,182,.9), transparent);
  transform-origin: left center;
  animation: sweep 8s linear infinite;
}
.signal-radar span {
  position: absolute;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 16px rgba(255,93,108,.8);
}
.signal-radar span:nth-child(1) { left: 60%; top: 28%; }
.signal-radar span:nth-child(2) { left: 31%; top: 62%; background: var(--color-secondary); box-shadow: 0 0 16px rgba(255,184,77,.8); }
.signal-radar span:nth-child(3) { left: 72%; top: 67%; }
@keyframes sweep { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .signal-radar::before { animation: none; } * { scroll-behavior: auto; } }

.scan-step {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 16px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px dashed rgba(94,242,182,.2);
}
.scan-step:last-child { border-bottom: 0; }
.scan-step .num {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: rgba(94,242,182,.1);
  border: 1px solid rgba(94,242,182,.25);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-weight: 800;
}

.noise-map {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 30px;
  background:
    linear-gradient(135deg, rgba(255,93,108,.11), transparent 30%),
    linear-gradient(315deg, rgba(94,242,182,.1), transparent 32%),
    rgba(17,26,24,.78);
  border: 1px solid rgba(94,242,182,.18);
}
.noise-map::before {
  content:"";
  position:absolute;
  inset: 18px;
  pointer-events:none;
  border: 1px solid rgba(255,184,77,.18);
  border-radius: 24px;
}
.noise-map ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.noise-map li { padding: 14px 16px; border-radius: 16px; background: rgba(6,13,12,.5); border: 1px solid rgba(234,245,239,.08); }
.noise-map b { color: var(--color-secondary); }

.ruleset-table { width: 100%; border-collapse: collapse; overflow: hidden; border-radius: var(--radius-md); }
.ruleset-table th, .ruleset-table td { padding: 16px; border-bottom: 1px solid rgba(94,242,182,.14); text-align: left; vertical-align: top; }
.ruleset-table th { color: #fff; font-family: var(--font-mono); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; background: rgba(94,242,182,.08); }
.ruleset-table td { color: #d5e7df; background: rgba(17,26,24,.72); }
.ruleset-table tr:last-child td { border-bottom: 0; }

.route-board {
  display: grid;
  gap: 14px;
  counter-reset: route;
}
.route-card {
  counter-increment: route;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 18px;
  border-radius: 18px;
  background: rgba(17,26,24,.78);
  border: 1px solid rgba(94,242,182,.16);
}
.route-card::before {
  content: counter(route, decimal-leading-zero);
  font-family: var(--font-mono);
  color: var(--color-primary);
}
.route-card .tag { color: var(--color-muted); font-family: var(--font-mono); font-size: .78rem; }

.article-shell { display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); gap: 42px; align-items: start; }
.article-aside { position: sticky; top: 104px; }
.article-content { font-size: 1.05rem; }
.article-content h2 { margin-top: 48px; font-size: 2rem; line-height: 1.12; }
.article-content h3 { margin-top: 28px; color: #fff; }
.article-content blockquote {
  margin: 28px 0;
  padding: 22px;
  border-left: 4px solid var(--color-secondary);
  background: rgba(255,184,77,.08);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: #ffe9c6;
}
.check-list { padding: 0; list-style: none; display: grid; gap: 12px; }
.check-list li { position: relative; padding-left: 30px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--color-primary); font-weight: 900; }

.faq-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
details.faq-item {
  border: 1px solid rgba(94,242,182,.16);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  background: rgba(17,26,24,.78);
}
details.faq-item[open] { border-color: rgba(94,242,182,.34); }
.faq-item summary { cursor: pointer; color: #fff; font-weight: 800; }
.faq-item p { margin-top: 12px; }

.form-panel {
  padding: 28px;
  border: 1px solid rgba(94,242,182,.2);
  background: rgba(17,26,24,.88);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-field { display: grid; gap: 7px; margin-bottom: 14px; }
label { color: #effff7; font-weight: 700; }
input, textarea, select {
  width: 100%;
  border: 1px solid rgba(94,242,182,.2);
  border-radius: 14px;
  background: rgba(6,13,12,.76);
  color: var(--color-text);
  padding: 13px 14px;
  font: inherit;
}
textarea { min-height: 130px; resize: vertical; }

.breadcrumbs {
  padding-top: 28px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: .8rem;
}
.breadcrumbs a { color: var(--color-muted); }
.page-hero { padding: 44px 0 56px; }
.page-hero .layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 36px; align-items: center; }
.page-hero h1 { margin: 0; font-family: var(--font-heading); font-size: clamp(2.8rem, 6vw, 6.4rem); line-height: .9; letter-spacing: -.06em; }
.page-hero-image { border-radius: var(--radius-lg); border: 1px solid rgba(94,242,182,.18); background: rgba(17,26,24,.68); padding: 22px; }

.band {
  padding: 28px;
  border-top: 1px solid rgba(94,242,182,.16);
  border-bottom: 1px solid rgba(94,242,182,.16);
  background: rgba(94,242,182,.055);
}
.split-band { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
.stat-line {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 24px;
}
.stat-line div { padding: 16px; border-radius: 16px; border: 1px solid rgba(94,242,182,.18); background: rgba(6,13,12,.42); }
.stat-line b { display:block; color: #fff; font-size: 1.45rem; line-height: 1; }
.stat-line span { color: var(--color-muted); font-family: var(--font-mono); font-size: .76rem; }

.site-footer {
  margin-top: 56px;
  padding: 42px 0;
  border-top: 1px solid rgba(94,242,182,.14);
  background: rgba(6,13,12,.64);
}
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 28px; }
.footer-grid ul { margin: 0; padding: 0; list-style: none; }
.footer-grid li { margin: 7px 0; }
.footer-grid h2, .footer-grid h3 { margin-top: 0; }
.footer-grid .logo { margin-bottom: 12px; }
.footer-bottom { margin-top: 28px; padding-top: 18px; border-top: 1px solid rgba(94,242,182,.1); color: var(--color-muted); font-size: .9rem; }

@media (max-width: 980px) {
  .hero-grid, .page-hero .layout, .grid-2, .article-shell, .split-band { grid-template-columns: 1fr; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .airlock-panel { min-height: 480px; }
  .article-aside { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .header-inner { align-items: flex-start; flex-direction: column; padding: 14px 0; }
  .nav-list { width: 100%; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 4px; }
  .hero { padding-top: 42px; }
  .hero-note, .gate-metrics, .stat-line, .grid-3, .grid-4, .faq-grid, .footer-grid, .form-grid { grid-template-columns: 1fr; }
  .airlock-panel { min-height: 430px; padding: 16px; }
  .airlock-visual { inset: 80px 20px 128px; }
  .packet-strip { left: 18px; right: 18px; grid-template-columns: repeat(6, 1fr); }
  .ledger-row, .route-card { grid-template-columns: 1fr; }
  .section { padding: 54px 0; }
}
@media (max-width: 420px) {
  :root { --container: min(100vw - 22px, 1180px); }
  .hero h1 { font-size: 3.2rem; }
  .page-hero h1 { font-size: 3rem; }
  .card, .form-panel, .noise-map { padding: 20px; }
}