:root {
  --ink: #151513;
  --muted: #5f625c;
  --paper: #f7f4ed;
  --white: #fffdfa;
  --line: #d7d0c3;
  --dark: #181a1a;
  --dark-2: #232626;
  --accent: #b84a2f;
  --accent-2: #2f8f68;
  --blue: #2e6f91;
  --gold: #c9952f;
  --danger: #9f2f25;
  --shadow: 0 18px 60px rgba(21, 21, 19, 0.14);
  --radius: 8px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  letter-spacing: 0;
}
a { color: inherit; text-decoration: none; }
p, h1, h2, h3 { margin-top: 0; }
.progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 90;
  height: 3px;
  width: 0;
  background: var(--accent);
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 14px 28px;
  border-bottom: 1px solid rgba(21, 21, 19, 0.12);
  background: rgba(247, 244, 237, 0.92);
  backdrop-filter: blur(18px);
}
.brand, .footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--white);
  font-size: 12px;
  border-radius: 6px;
}
.nav {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  padding: 8px 10px;
  border-radius: 6px;
  color: #33352f;
  font-size: 14px;
}
.nav-link:hover, .nav-link.active { background: var(--white); color: var(--accent); }
.header-cta, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--ink);
  border-radius: 6px;
  font-weight: 750;
  font-size: 14px;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}
.header-cta { background: var(--ink); color: var(--white); }
.button:hover, .header-cta:hover { transform: translateY(-2px); }
.button.primary { background: var(--ink); color: var(--white); }
.button.secondary { background: transparent; color: var(--ink); }
.hero {
  min-height: calc(100svh - 64px);
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
  gap: 48px;
  align-items: center;
  padding: 54px 44px 32px;
  overflow: hidden;
}
.hero-home {
  background:
    linear-gradient(90deg, rgba(247,244,237,0.98) 0%, rgba(247,244,237,0.92) 42%, rgba(24,26,26,0.96) 42%, rgba(24,26,26,1) 100%);
}
.eyebrow {
  margin-bottom: 14px;
  color: var(--accent);
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0;
}
h1 {
  margin-bottom: 18px;
  font-size: 64px;
  line-height: 0.94;
  font-weight: 900;
}
h2 {
  font-size: 34px;
  line-height: 1.04;
  font-weight: 850;
}
.hero-line {
  max-width: 700px;
  font-size: 26px;
  line-height: 1.2;
  color: #2b2b27;
}
.hero-sub, .page-hero p, .copy-stack p, .runway-copy p {
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.risk-wall {
  min-height: 570px;
  padding: 24px;
  color: #f7f4ed;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02)),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 52px),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.03) 0 1px, transparent 1px 76px),
    var(--dark);
  border-left: 1px solid rgba(255,255,255,0.12);
}
.wall-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 42px;
  font-size: 13px;
  color: #bfc4bd;
}
.status-fail {
  color: #ffd6cc;
  border: 1px solid rgba(184, 74, 47, 0.7);
  padding: 6px 8px;
  border-radius: 6px;
}
.curve {
  position: relative;
  height: 210px;
  border-bottom: 1px solid rgba(255,255,255,0.24);
  overflow: hidden;
}
.band {
  position: absolute;
  bottom: -40px;
  border: 1px solid;
  border-radius: 50% 50% 0 0;
}
.b1 { left: 2%; width: 46%; height: 130px; border-color: rgba(47,143,104,0.9); }
.b2 { left: 18%; width: 62%; height: 190px; border-color: rgba(201,149,47,0.9); }
.b3 { left: 42%; width: 54%; height: 235px; border-color: rgba(184,74,47,0.95); }
.pin {
  position: absolute;
  bottom: 18px;
  padding: 4px 6px;
  border-radius: 4px;
  background: rgba(255,255,255,0.1);
  font-size: 12px;
}
.p1 { left: 25%; }
.p2 { left: 62%; color: #ffd18a; }
.p3 { left: 82%; color: #ffb6a7; }
.report-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 24px;
  background: rgba(255,255,255,0.12);
}
.report-grid div {
  padding: 16px;
  background: rgba(24,26,26,0.86);
}
.report-grid b { display: block; font-size: 23px; }
.report-grid small { color: #aeb5ad; }
.diff-preview {
  margin-top: 24px;
  display: grid;
  gap: 8px;
}
.diff-preview code {
  display: block;
  padding: 10px 12px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 6px;
  color: #f2eee5;
}
.tape {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}
.metric {
  min-height: 118px;
  padding: 22px;
  border-right: 1px solid var(--line);
}
.metric strong { display: block; font-size: 34px; line-height: 1; }
.metric span { display: block; margin-top: 8px; font-weight: 750; }
.metric small { display: block; margin-top: 4px; color: var(--muted); }
.section {
  padding: 92px 44px;
  border-bottom: 1px solid var(--line);
}
.split {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(320px, 1.18fr);
  gap: 60px;
  align-items: start;
}
.section-lead h2 { max-width: 680px; }
.compact-lead { margin-bottom: 28px; }
.copy-stack { display: grid; gap: 12px; }
.prose-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.75fr) minmax(360px, 1.25fr);
  gap: 60px;
  background: #fbf8f0;
}
.prose-copy {
  display: grid;
  gap: 16px;
  max-width: 820px;
}
.prose-copy p {
  margin: 0;
  color: #3d3f3a;
  font-size: 18px;
  line-height: 1.65;
}
.detail-rows, .faq-list {
  display: grid;
  gap: 1px;
  background: var(--line);
}
.detail-row {
  display: grid;
  grid-template-columns: minmax(220px, 0.55fr) minmax(320px, 1.45fr);
  gap: 28px;
  padding: 25px 30px;
  background: var(--white);
}
.detail-row b {
  font-size: 20px;
}
.detail-row span {
  color: var(--muted);
}
.faq-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.75fr) minmax(360px, 1.25fr);
  gap: 60px;
}
.faq-item {
  padding: 22px 26px;
  background: var(--white);
}
.faq-item summary {
  cursor: pointer;
  font-weight: 850;
  font-size: 20px;
}
.faq-item p {
  margin: 14px 0 0;
  color: var(--muted);
}
.buyer-grid, .pricing-grid, .module-grid, .trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  padding: 0;
}
.buyer, .price-card, .module-tile, .trust-item {
  min-height: 260px;
  padding: 34px;
  background: var(--white);
}
.buyer span, .price-card span, .platform-block span {
  display: inline-block;
  margin-bottom: 30px;
  color: var(--accent);
  font-weight: 850;
  text-transform: uppercase;
  font-size: 12px;
}
.buyer h2, .price-card h2, .module-tile h2, .trust-item h2 { font-size: 26px; }
.buyer p, .price-card p, .module-tile p, .trust-item p, .feature-row p, .step p, .platform-block p { color: var(--muted); }
.dark-runway {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(360px, 1.1fr);
  gap: 44px;
  color: var(--white);
  background: var(--dark);
}
.dark-runway .eyebrow { color: #e0a24a; }
.dark-runway p { color: #c9cec7; }
.approval-lane, .stack-list, .status-list, .anatomy {
  display: grid;
  gap: 1px;
  background: rgba(255,255,255,0.14);
}
.approval-lane div, .stack-list div {
  padding: 24px;
  background: var(--dark-2);
}
.approval-lane span {
  display: block;
  color: var(--gold);
  font-weight: 850;
  margin-bottom: 10px;
}
.approval-lane small, .stack-list span { display: block; color: #b8beb6; }
.page-index .link-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
}
.page-link {
  display: grid;
  gap: 12px;
  min-height: 150px;
  padding: 26px;
  background: var(--white);
  transition: background 180ms ease, transform 180ms ease;
}
.page-link:hover { background: #fff8e8; transform: translateY(-2px); }
.page-link span { color: var(--muted); }
.page-hero {
  padding: 90px 44px 70px;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.page-hero h1 { max-width: 1040px; font-size: 58px; }
.process {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
}
.step {
  min-height: 300px;
  padding: 30px;
  background: var(--white);
}
.step span {
  display: block;
  color: var(--accent);
  font-size: 13px;
  font-weight: 850;
  margin-bottom: 28px;
}
.code-proof {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(320px, 1.1fr);
  gap: 36px;
  align-items: start;
  background: #f0eadf;
}
pre {
  margin: 0;
  padding: 24px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--dark);
  color: #f4efe4;
}
code { font-family: "SFMono-Regular", Consolas, monospace; }
.feature-rows, .data-ledger {
  display: grid;
  gap: 1px;
  background: var(--line);
}
.feature-row, .data-row {
  display: grid;
  grid-template-columns: minmax(220px, 0.55fr) minmax(320px, 1.45fr);
  gap: 28px;
  padding: 26px 30px;
  background: var(--white);
}
.feature-row h2 { font-size: 24px; }
.platform-map {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  padding: 0;
}
.platform-block {
  min-height: 420px;
  padding: 30px;
  background: var(--white);
}
.platform-block ul, .price-card ul {
  margin: 24px 0 0;
  padding-left: 18px;
  color: var(--muted);
}
.table-shell {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}
table { width: 100%; border-collapse: collapse; }
th, td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-size: 13px; text-transform: uppercase; }
.calculator, .sandbox-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(360px, 1.1fr);
  gap: 28px;
}
.calc-panel, .calc-output, .sandbox-report {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}
label {
  display: grid;
  gap: 8px;
  margin-top: 18px;
  font-weight: 750;
}
input, select {
  width: 100%;
  min-height: 42px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}
input[type="range"] { padding: 0; }
.calc-output .big, .sandbox-report .big {
  font-size: 42px;
  font-weight: 900;
}
.manual-list {
  background: var(--white);
}
.manual-list ol {
  columns: 2;
  column-gap: 44px;
  margin: 0;
  padding-left: 22px;
}
.manual-list li { break-inside: avoid; margin-bottom: 10px; }
.price-card {
  min-height: 420px;
}
.price-card h2 { font-size: 46px; }
.lead-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}
.wide { grid-column: 1 / -1; }
.site-footer {
  padding: 54px 44px 28px;
  background: var(--dark);
  color: var(--white);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 30px;
}
.site-footer p, .site-footer a, .footer-bottom { color: #c8cec7; }
.site-footer h2 {
  font-size: 15px;
  margin-bottom: 12px;
  color: #fff;
}
.site-footer a { display: block; margin: 8px 0; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 46px;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.16);
  font-size: 13px;
}
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 420ms ease, transform 420ms ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}
@media (max-width: 1100px) {
  .hero, .dark-runway, .split, .code-proof, .calculator, .sandbox-grid {
    grid-template-columns: 1fr;
  }
  .prose-section, .faq-section {
    grid-template-columns: 1fr;
  }
  .hero-home { background: var(--paper); }
  .risk-wall { min-height: 460px; }
  .tape, .platform-map, .buyer-grid, .pricing-grid, .module-grid, .trust-grid, .page-index .link-columns {
    grid-template-columns: repeat(2, 1fr);
  }
  .site-header {
    grid-template-columns: 1fr auto;
  }
  .nav {
    grid-column: 1 / -1;
    justify-self: stretch;
    overflow-x: auto;
    padding-bottom: 2px;
  }
  .nav-link {
    flex: 0 0 auto;
  }
}
@media (max-width: 720px) {
  .site-header { grid-template-columns: 1fr auto; padding: 12px 16px; }
  .header-cta { display: none; }
  .hero, .page-hero, .section { padding-left: 18px; padding-right: 18px; }
  h1, .page-hero h1 { font-size: 38px; line-height: 1; }
  h2 { font-size: 28px; }
  .hero-line { font-size: 21px; }
  .tape, .platform-map, .buyer-grid, .pricing-grid, .module-grid, .trust-grid, .page-index .link-columns, .process {
    grid-template-columns: 1fr;
  }
  .report-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-row, .data-row, .lead-form { grid-template-columns: 1fr; }
  .detail-row { grid-template-columns: 1fr; }
  .manual-list ol { columns: 1; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}