:root {
  --ink: #eaf3ef;
  --muted: #9fb0a9;
  --bg: #07100e;
  --panel: #0d1916;
  --panel-2: #12221d;
  --line: #284138;
  --signal: #e9ff62;
  --signal-2: #83e6bd;
  --warning: #ffb16b;
  --danger: #ff7c69;
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 78% -10%, rgba(131, 230, 189, 0.12), transparent 35rem),
    var(--bg);
  font-family: var(--sans);
  line-height: 1.65;
}

a { color: var(--signal-2); text-underline-offset: 0.18em; }
a:hover { color: var(--signal); }

.site-header,
.site-footer {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-weight: 720;
  letter-spacing: -0.015em;
  text-decoration: none;
}

.brand-mark {
  width: 0.75rem;
  height: 0.75rem;
  background: var(--signal);
  transform: rotate(45deg);
  box-shadow: 0 0 22px rgba(233, 255, 98, 0.35);
}

nav { display: flex; gap: 1.25rem; }
nav a { color: var(--muted); font-size: 0.91rem; text-decoration: none; }

.hero {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(4.5rem, 10vw, 9rem) 0 4rem;
}

.eyebrow {
  margin: 0 0 1.2rem;
  color: var(--signal);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 1050px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3.1rem, 8.5vw, 7.8rem);
  font-weight: 500;
  letter-spacing: -0.065em;
  line-height: 0.91;
}

.hero h1 em { color: var(--signal); font-style: normal; }

.standfirst {
  max-width: 810px;
  margin: 2rem 0 0;
  color: #c7d6d0;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.2vw, 1.8rem);
  line-height: 1.38;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 2.1rem; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.65rem 1rem;
  border: 1px solid var(--signal);
  color: #09110e;
  background: var(--signal);
  font-size: 0.88rem;
  font-weight: 800;
  text-decoration: none;
}

.button.secondary { color: var(--ink); background: transparent; border-color: var(--line); }

.briefing-grid,
.evidence-grid,
.boundary,
.method {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.briefing-grid {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: clamp(2rem, 7vw, 7rem);
  padding: 4rem 0 5rem;
  border-top: 1px solid var(--line);
}

.section-label { color: var(--muted); font-size: 0.78rem; font-weight: 750; letter-spacing: 0.14em; text-transform: uppercase; }

.briefing-copy h2,
.boundary h2,
.method h2 {
  margin: 0 0 1.2rem;
  font-family: var(--serif);
  font-size: clamp(2.1rem, 4.2vw, 4.1rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.02;
}

.briefing-copy p { color: #c0d0c9; font-size: 1.08rem; }

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--line);
}

.finding { min-height: 285px; padding: 1.55rem; background: var(--panel); }
.finding .number { color: var(--signal); font-family: var(--serif); font-size: 2rem; }
.finding h3 { margin: 2.8rem 0 0.8rem; font-size: 1.05rem; line-height: 1.3; }
.finding p { margin: 0; color: var(--muted); font-size: 0.92rem; }

.boundary,
.method { padding: 6rem 0; }

.boundary-box {
  padding: clamp(1.5rem, 4vw, 3rem);
  border-left: 5px solid var(--warning);
  background: var(--panel-2);
}

.boundary-box p { max-width: 880px; margin: 0.8rem 0 0; color: #c4d3cd; font-size: 1.08rem; }
.boundary-box strong { color: var(--warning); }

.method {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 7vw, 7rem);
  border-top: 1px solid var(--line);
}

.method ol { margin: 0; padding: 0; list-style: none; counter-reset: method; }
.method li { counter-increment: method; padding: 1rem 0; border-bottom: 1px solid var(--line); color: #c3d2cc; }
.method li::before { content: "0" counter(method); display: inline-block; width: 2.5rem; color: var(--signal); font-size: 0.78rem; font-weight: 800; }

.document-shell { width: min(980px, calc(100% - 2rem)); margin: 0 auto; padding: 5rem 0 7rem; }

.prose { font-family: var(--serif); font-size: 1.04rem; }
.prose h1 { margin: 0 0 0.3rem; font-size: clamp(2.8rem, 7vw, 5.8rem); letter-spacing: -0.055em; line-height: 0.95; }
.prose h2 { margin: 4.5rem 0 1.2rem; padding-top: 1rem; border-top: 1px solid var(--line); font-size: clamp(2rem, 4vw, 3.3rem); letter-spacing: -0.035em; line-height: 1.05; }
.prose h3 { margin: 3.3rem 0 1rem; font-size: clamp(1.5rem, 3vw, 2.1rem); line-height: 1.15; }
.prose p, .prose li { color: #c7d5d0; }
.prose > p { max-width: 78ch; }
.prose .eyebrow { font-family: var(--sans); }
.prose img { display: block; width: 100%; height: auto; margin: 2.2rem 0 0.6rem; border: 1px solid var(--line); background: white; }
.prose img + p { margin-top: 0; color: var(--muted); font-family: var(--sans); font-size: 0.82rem; }

.prose table {
  display: block;
  width: 100%;
  margin: 1.5rem 0 2.5rem;
  overflow-x: auto;
  border-collapse: collapse;
  font-family: var(--sans);
  font-size: 0.84rem;
}

.prose th, .prose td { min-width: 130px; padding: 0.75rem; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.prose th { color: var(--signal); background: var(--panel-2); }
.prose td { color: #c4d2cd; background: rgba(13, 25, 22, 0.68); }
.prose blockquote { margin: 1.5rem 0; padding: 1rem 1.2rem; border-left: 4px solid var(--signal-2); background: var(--panel); }
.prose blockquote p { margin: 0; }

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding: 2rem 0 4rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
}

.site-footer p { max-width: 700px; margin: 0; }

@media (max-width: 800px) {
  .site-header { align-items: flex-start; padding: 1.2rem 0; }
  nav { gap: 0.75rem; flex-wrap: wrap; justify-content: flex-end; }
  .briefing-grid, .method { grid-template-columns: 1fr; }
  .evidence-grid { grid-template-columns: 1fr; }
  .finding { min-height: 230px; }
  .site-footer { flex-direction: column; }
}

@media (max-width: 520px) {
  .brand span:last-child { display: none; }
  nav { font-size: 0.82rem; }
  .hero { padding-top: 3.5rem; }
  .hero h1 { font-size: clamp(2.8rem, 17vw, 4.2rem); }
}