:root {
  --paper: #f7f2e8;
  --paper-2: #fbf8f2;
  --ink: #171717;
  --muted: #5d5a54;
  --line: #d8d0c3;
  --blue: #3155d7;
  --blue-deep: #183aab;
  --brass: #ae8c53;
  --sand: #ece3d5;
  --shadow: 0 18px 48px rgba(30, 24, 17, 0.08);
  --radius: 22px;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, var(--paper-2) 0%, var(--paper) 100%);
  color: var(--ink);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(247, 242, 232, 0.86);
  border-bottom: 1px solid rgba(23, 23, 23, 0.08);
}
.nav-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 18px 0; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 600; letter-spacing: .02em; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px; border: 1px solid var(--line);
  display: inline-flex; align-items: center; justify-content: center; font-size: 14px; background: rgba(255,255,255,.55);
}
.brand-word { font-size: 14px; letter-spacing: .16em; text-transform: uppercase; }
.nav-links { display: flex; flex-wrap: wrap; gap: 18px; color: var(--muted); font-size: 14px; }
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 18px; border-radius: 999px; border: 1px solid var(--line);
  background: rgba(255,255,255,.7); color: var(--ink); font-size: 14px; font-weight: 600;
}
.button.primary { background: var(--ink); color: #fff; border-color: var(--ink); }
.button.blue { background: var(--blue); color: #fff; border-color: var(--blue); }
.button.subtle { background: transparent; }
.page-shell { padding-bottom: 56px; }
.hero { padding: 72px 0 34px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr); gap: 48px; align-items: start; }
.eyebrow {
  margin-bottom: 14px; color: var(--muted); font-size: 12px; font-weight: 700; letter-spacing: .22em; text-transform: uppercase;
}
.display, .manifesto, .section-title.serif, .final-line {
  font-family: "Cormorant Garamond", Georgia, serif;
  line-height: .92; letter-spacing: -.03em; font-weight: 600;
}
.display { font-size: clamp(64px, 10vw, 118px); max-width: 8ch; margin: 0 0 22px; }
.hero-lead { font-size: 19px; line-height: 1.65; color: var(--muted); max-width: 62ch; }
.hero-note, .paper-panel, .soft-panel {
  border: 1px solid rgba(23,23,23,.08); border-radius: var(--radius); background: rgba(255,255,255,.66); box-shadow: var(--shadow);
}
.hero-note { padding: 28px; }
.hero-note h2, .section-title { margin: 0 0 14px; font-size: clamp(34px, 5vw, 54px); }
.hero-note p, .section-copy, .card p, .compare-panel p, .split-list p, .metric p, .footer-source { color: var(--muted); line-height: 1.7; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; }
.section { padding: 34px 0; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
.card, .compare-panel, .metric, .note-card, .figure-card {
  border: 1px solid rgba(23,23,23,.08); border-radius: var(--radius); background: rgba(255,255,255,.78); box-shadow: var(--shadow); padding: 24px;
}
.card h3, .compare-panel h3, .metric h3 { margin: 0 0 10px; font-size: 22px; }
.rule-title { display: flex; align-items: center; gap: 16px; margin: 0 0 26px; }
.rule-title::after { content: ''; flex: 1; height: 1px; background: var(--line); }
.figure-card { padding: 26px; }
.figure-card svg { width: 100%; height: auto; }
.figure-caption { margin-top: 16px; font-size: 14px; color: var(--muted); }
.final-line { font-size: clamp(42px, 5vw, 72px); max-width: 11ch; margin: 0; }
.footer-band { margin-top: 34px; padding-top: 20px; border-top: 1px solid rgba(23,23,23,.12); display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.footer-source { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; }
.accent-blue { color: var(--blue); }
.center-rail { display: grid; grid-template-columns: 1fr auto 1fr; gap: 12px; align-items: center; margin: 8px 0; }
.center-rail::before, .center-rail::after { content: ''; height: 1px; background: var(--line); }
.center-rail span { font-size: 11px; letter-spacing: .22em; color: var(--muted); font-weight: 700; text-transform: uppercase; }
.manifesto { font-size: clamp(42px, 6vw, 76px); margin: 0 0 18px; max-width: 8.8ch; }
.split-compare { display: grid; grid-template-columns: 1fr minmax(90px, 120px) 1fr; gap: 18px; align-items: start; }
.split-list { padding: 6px 0; }
.split-list h3 { margin: 0 0 18px; font-size: 18px; letter-spacing: .18em; text-transform: uppercase; }
.split-list.left h3 { color: var(--ink); }
.split-list.right h3 { color: var(--blue); }
.split-list ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 20px; }
.split-list li { font-size: 19px; line-height: 1.4; }
.scheme-note { font-size: 13px; color: var(--muted); margin-top: 12px; }
.aside-stack { display: grid; gap: 16px; }
.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.metric .value { font-size: 13px; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); font-weight: 700; margin-bottom: 8px; }
.metric h3 { font-size: 18px; }
.diagram-frame { padding: 30px; background: rgba(255,255,255,.82); border: 1px solid rgba(23,23,23,.08); border-radius: 28px; box-shadow: var(--shadow); }
.paper-band { background: linear-gradient(180deg, rgba(255,255,255,.6), rgba(255,255,255,.35)); border-top: 1px solid rgba(23,23,23,.07); border-bottom: 1px solid rgba(23,23,23,.07); }
.hub-hero h1 { margin: 0 0 18px; font-size: clamp(52px, 7vw, 98px); max-width: 9ch; }
.legend-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; margin-top: 28px; }
.legend-card, .hub-card { border: 1px solid rgba(23,23,23,.08); border-radius: 24px; background: rgba(255,255,255,.78); box-shadow: var(--shadow); }
.legend-card { padding: 20px 22px; }
.legend-label, .risk-label { font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); font-weight: 700; margin-bottom: 12px; }
.hub-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 22px; }
.hub-card { padding: 24px; display: grid; gap: 18px; }
.card-signal { background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(247,242,232,.88)); border-radius: 28px; }
.card-signal h2 { font-family: "Cormorant Garamond", Georgia, serif; font-size: 34px; }
.card-task { background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(242,246,255,.92)); border-left: 3px solid var(--blue); }
.card-atlas { background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(250,247,241,.92)); }
.card-ledger { background: linear-gradient(180deg, rgba(255,250,244,.96), rgba(243,232,214,.92)); border-color: rgba(174,140,83,.26); }
.card-ledger .badge { border-color: rgba(174,140,83,.28); color: #816738; }
.card-corridor { background: rgba(255,255,255,.9); border-radius: 32px; }
.card-trust { background: linear-gradient(180deg, rgba(252,252,252,.94), rgba(244,247,252,.92)); border-top: 3px solid var(--blue); }
.preview-trust { background: linear-gradient(180deg, #ffffff, #f4f6fa); }
.preview-trust .line.one { left: 22px; top: 22px; width: 34%; height: 52px; background: rgba(23,23,23,.08); }
.preview-trust .line.two { right: 22px; top: 26px; width: 26%; height: 88px; border: 1px solid rgba(49,85,215,.24); background: rgba(255,255,255,.8); }
.preview-trust .line.three { left: 22px; bottom: 24px; width: 28%; height: 82px; border: 1px solid rgba(23,23,23,.08); background: rgba(255,255,255,.85); }
.preview-trust .line.four { right: 26px; bottom: 30px; width: 30%; height: 10px; background: rgba(49,85,215,.36); }
.hub-card h2 { margin: 0; font-size: 28px; }
.hub-card p { margin: 0; color: var(--muted); line-height: 1.65; }
.hub-top { display: flex; justify-content: space-between; gap: 16px; align-items: start; }
.badge { font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 8px 12px; }
.preview {
  min-height: 160px; border-radius: 20px; border: 1px solid rgba(23,23,23,.08); overflow: hidden; position: relative; background: linear-gradient(135deg, #fbf8f2, #efe8db);
}
.preview .line { position: absolute; background: rgba(49,85,215,.12); }
.preview-a .line.one { left: 22px; top: 26px; width: 46%; height: 56px; }
.preview-a .line.two { left: 22px; top: 102px; width: 28%; height: 10px; }
.preview-a .line.three { right: 20px; bottom: 24px; width: 34%; height: 74px; border-radius: 18px; border: 1px solid rgba(49,85,215,.24); background: rgba(255,255,255,.8); }
.preview-b { background: linear-gradient(180deg, #fbf8f2, #f4efe5); }
.preview-b::before { content: ''; position: absolute; left: 50%; top: 20px; bottom: 20px; width: 1px; background: var(--line); }
.preview-b .line.left { left: 28px; top: 44px; width: 28%; height: 12px; background: rgba(23,23,23,.14); }
.preview-b .line.right { right: 28px; top: 44px; width: 28%; height: 12px; background: rgba(49,85,215,.24); }
.preview-c { background: linear-gradient(180deg, #f9f4eb, #efe5d7); }
.preview-c .line.one { left: 22px; top: 26px; width: 42%; height: 94px; border-radius: 18px; background: rgba(255,255,255,.88); border: 1px solid rgba(23,23,23,.08); }
.preview-c .line.two { right: 20px; top: 64px; width: 32%; height: 18px; background: rgba(174,140,83,.24); }
.preview-d { background: linear-gradient(180deg, #ffffff, #f4efe4); }
.preview-d .line.one { left: 22px; top: 26px; width: 54%; height: 12px; background: rgba(23,23,23,.12); }
.preview-d .line.two { left: 22px; top: 50px; width: 34%; height: 44px; background: rgba(49,85,215,.14); }
.preview-d .line.three { right: 18px; top: 24px; width: 24%; height: 112px; border: 1px solid rgba(23,23,23,.08); border-radius: 20px; background: rgba(255,255,255,.84); }
.preview-e { background: linear-gradient(180deg, #fbf7f0, #efe7d8); }
.preview-e .line.one { left: 20px; top: 24px; width: 36%; height: 80px; background: rgba(255,255,255,.86); border-radius: 18px; border: 1px solid rgba(23,23,23,.08); }
.preview-e .line.two { left: 44%; top: 40px; width: 1px; height: 90px; background: var(--line); }
.preview-e .line.three { right: 20px; bottom: 22px; width: 34%; height: 42px; background: rgba(49,85,215,.18); border-radius: 999px; }
.meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.meta-grid p { margin: 0; font-size: 14px; }
.small-link { display: inline-flex; gap: 8px; align-items: center; color: var(--blue-deep); font-weight: 700; }
.note-card { background: rgba(255,255,255,.72); }
@media (max-width: 980px) {
  .hero-grid, .split-compare, .hub-grid, .grid-3, .metric-grid { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .nav-row { flex-wrap: wrap; }
  .display, .manifesto { max-width: none; }
}
@media (max-width: 720px) {
  .container { width: min(var(--max), calc(100% - 28px)); }
  .hero { padding-top: 54px; }
  .display { font-size: clamp(48px, 16vw, 84px); }
  .hub-hero h1, .manifesto { font-size: clamp(42px, 13vw, 72px); }
  .actions, .nav-links { gap: 12px; }
  .split-list li { font-size: 17px; }
}

.executive-switcher {
  position: sticky;
  top: 71px;
  z-index: 18;
  background: rgba(251,248,242,.92);
  border-bottom: 1px solid rgba(23,23,23,.08);
  backdrop-filter: blur(16px);
}
.switcher-row {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 18px;
  align-items: center;
  padding: 12px 0;
}
.switcher-label {
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}
.switcher-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.switch-pill {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(23,23,23,.1);
  background: rgba(255,255,255,.75);
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
}
.switch-pill.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.executive-band {
  background: linear-gradient(180deg, rgba(255,255,255,.68), rgba(255,255,255,.38));
  border-top: 1px solid rgba(23,23,23,.07);
  border-bottom: 1px solid rgba(23,23,23,.07);
}
.executive-grid {
  display: grid;
  grid-template-columns: minmax(0,1.15fr) minmax(300px,.85fr);
  gap: 30px;
  align-items: start;
  margin-bottom: 26px;
}
.matrix-shell {
  overflow-x: auto;
}
.decision-matrix {
  width: 100%;
  border-collapse: collapse;
  background: rgba(255,255,255,.82);
  border: 1px solid rgba(23,23,23,.08);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.decision-matrix th,
.decision-matrix td {
  text-align: left;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(23,23,23,.08);
  vertical-align: top;
}
.decision-matrix th {
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(247,242,232,.82);
}
.decision-matrix td {
  font-size: 15px;
  line-height: 1.55;
}
.decision-matrix tbody tr:last-child td { border-bottom: none; }
.decision-matrix a { color: var(--blue-deep); font-weight: 700; }
@media (max-width: 980px) {
  .executive-grid, .switcher-row { grid-template-columns: 1fr; }
  .executive-switcher { top: 65px; }
}