*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0D1117;
  --surface: #161B22;
  --surface2: #1C2433;
  --border: #30363D;
  --border2: #3D4451;
  --text: #E6EDF3;
  --muted: #8B949E;
  --dim: #6E7681;
  --blue: #58A6FF;
  --green: #3FB950;
  --amber: #D29922;
  --magento: #F26322;
  --shopify: #95BF47;
  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--muted);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  border-radius: 6px;
  color: var(--bg);
  background: var(--blue);
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 150ms ease;
}
.skip-link:focus { transform: translateY(0); }
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.reading { max-width: 820px; margin: 0 auto; padding: 0 24px; }

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 17, 23, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  max-width: 1120px;
  height: 60px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand, .nav__link { color: var(--text); text-decoration: none; font-size: 14px; }
.nav__brand { font-weight: 600; }
.nav__link { color: var(--muted); }
.nav__link:hover { color: var(--text); }

.hero { padding: 88px 0 72px; }
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, 0.92fr);
  gap: 52px;
  align-items: center;
}

.kicker {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent, var(--blue));
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  color: var(--text);
  font-size: clamp(38px, 5vw, 58px);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: -0.035em;
}

.hero__body { max-width: 680px; margin-bottom: 28px; font-size: 18px; line-height: 1.72; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; }
.chip {
  padding: 5px 9px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--dim);
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 11px;
}

.system-map {
  min-height: 360px;
  padding: 28px;
  display: grid;
  align-content: center;
  gap: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background:
    linear-gradient(rgba(88, 166, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88, 166, 255, 0.05) 1px, transparent 1px),
    var(--surface);
  background-size: 24px 24px;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.28);
}

.system-map__row { display: flex; align-items: center; gap: 10px; }
.system-map__node {
  flex: 1;
  min-width: 0;
  padding: 16px 12px;
  border: 1px solid var(--border2);
  border-radius: 5px;
  color: var(--text);
  background: var(--bg);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.35;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.system-map__node--accent { border-color: var(--accent, var(--blue)); }
.system-map__arrow { color: var(--accent, var(--blue)); }
.system-map__caption { margin-top: 6px; color: var(--dim); text-align: center; font-size: 12px; }

.case-summary {
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.28);
}
.case-summary__label {
  margin-bottom: 14px;
  color: var(--accent, var(--blue));
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.case-summary dl { display: grid; }
.case-summary dl > div {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--border);
}
.case-summary dl > div:last-child { border-bottom: 0; }
.case-summary dt {
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.case-summary dd { margin: 0; color: var(--text); font-size: 13px; line-height: 1.5; }

section { padding: 76px 0; }
.surface { background: var(--surface); }
.section-heading {
  margin-bottom: 22px;
  color: var(--text);
  font-size: 29px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.lead { font-size: 17px; line-height: 1.78; }

.summary-grid, .grid-2, .grid-3 { display: grid; gap: 16px; }
.summary-grid { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.panel {
  padding: 23px 24px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
}
.panel--surface { background: var(--surface); }
.panel__label {
  margin-bottom: 8px;
  color: var(--accent, var(--blue));
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.panel h3 { margin-bottom: 10px; color: var(--text); font-size: 18px; line-height: 1.35; }
.panel p, .panel li { font-size: 14px; line-height: 1.68; }
.list { display: grid; gap: 12px; list-style: none; }
.list li { position: relative; padding-left: 18px; }
.list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent, var(--blue));
}

.evidence-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 30px;
}
.evidence {
  padding: 18px 14px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--surface);
  text-align: center;
}
.evidence strong { display: block; margin-bottom: 5px; color: var(--text); font-size: 22px; line-height: 1; }
.evidence span { color: var(--dim); font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; }

.status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 12px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.status::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--green); }
.status--gated::before { background: var(--amber); }

.cta { padding: 72px 0; text-align: center; }
.cta p { max-width: 650px; margin: 0 auto 26px; }
.btn {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 6px;
  color: var(--bg);
  background: var(--blue);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

footer { padding: 36px 0; border-top: 1px solid var(--border); background: var(--surface); }
.footer__inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer__inner, .footer__inner a { color: var(--dim); font-family: var(--font-mono); font-size: 12px; text-decoration: none; }

@media (max-width: 900px) {
  .hero__grid, .grid-2 { grid-template-columns: 1fr; }
  .summary-grid, .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .hero { padding-top: 64px; }
  .system-map { min-height: 300px; }
  .evidence-strip { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  section, .cta { padding: 56px 0; }
  .summary-grid, .grid-3 { grid-template-columns: 1fr; }
  .system-map { padding: 20px; }
  .system-map__row { flex-direction: column; }
  .system-map__arrow { transform: rotate(90deg); }
  .system-map__node { width: 100%; }
  .evidence-strip { grid-template-columns: 1fr 1fr; }
  .case-summary dl > div { grid-template-columns: 1fr; gap: 4px; }
}

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