:root {
  --ink: #111827;
  --muted: #5f6875;
  --paper: #f8f6ef;
  --band: #eef3f1;
  --card: #ffffff;
  --line: #d8d6ca;
  --accent: #2f5d68;
  --accent2: #7a4f2b;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.62; }
a { color: #245b78; text-underline-offset: 3px; }
header, main section, footer { padding-left: max(24px, calc((100vw - 1180px) / 2)); padding-right: max(24px, calc((100vw - 1180px) / 2)); }
header { background: #efe8d9; }
nav { display: flex; justify-content: space-between; gap: 20px; padding: 22px 0 34px; }
nav span { display: flex; gap: 16px; flex-wrap: wrap; }
.hero { padding: 22px 0 72px; max-width: 980px; }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; color: var(--accent2); font-weight: 800; font-size: 12px; }
h1, h2, h3, h4 { line-height: 1.15; margin: 0 0 14px; letter-spacing: 0; }
h1 { font-size: clamp(42px, 8vw, 78px); }
h2 { font-size: clamp(30px, 5vw, 46px); }
h3 { font-size: 23px; }
h4 { font-size: 15px; text-transform: uppercase; letter-spacing: .04em; color: var(--accent); }
p { margin: 0 0 15px; }
.lead { font-size: 21px; color: #374151; }
.button { display: inline-flex; align-items: center; min-height: 42px; padding: 9px 15px; background: var(--accent); color: white; text-decoration: none; font-weight: 800; margin: 6px 8px 0 0; }
.button.ghost { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
main section { padding-top: 58px; padding-bottom: 58px; }
.band { background: var(--band); }
.principles ol { columns: 2; column-gap: 42px; max-width: 1100px; }
.principles li { break-inside: avoid; margin-bottom: 10px; }
.capability-map .section-head { max-width: 860px; }
.capability-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.capability-card {
  background: white;
  border: 1px solid var(--line);
  padding: 20px;
  min-height: 270px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.capability-card h3 { margin: 0; font-size: 1.04rem; }
.capability-card h4 { margin: 4px 0 0; font-size: .78rem; text-transform: uppercase; color: var(--muted); letter-spacing: .08em; }
.capability-card p { margin: 0; color: #374151; }
.capability-card ul { margin: 0; padding-left: 20px; color: #374151; }
.capability-card .sources { margin-top: auto; }
.search-panel { background: #111827; color: white; padding-top: 28px; padding-bottom: 28px; }
.search-panel label { display: block; font-weight: 800; margin-bottom: 10px; }
#search { width: 100%; min-height: 48px; border: 0; padding: 12px 14px; font-size: 18px; }
.section-head { max-width: 860px; margin-bottom: 24px; }
.card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.card, .qa-item { background: var(--card); border: 1px solid var(--line); padding: 22px; }
.card-meta { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.card-meta span span, .tagline span { display: inline-block; background: #edf2f0; border: 1px solid #cad5d2; padding: 2px 7px; margin: 0 4px 4px 0; color: #334155; }
.takeaway { font-weight: 750; color: #213f49; }
.split, .decision-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.decision-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
ul { padding-left: 20px; margin: 8px 0 12px; }
.sources { margin-top: 14px; display: flex; gap: 7px; flex-wrap: wrap; }
.source-chip { font-size: 12px; padding: 3px 7px; background: #fff7ed; border: 1px solid #efd0ad; text-decoration: none; }
.decision-list { display: grid; gap: 16px; }
.qa-list { display: grid; gap: 10px; }
.qa-item summary { cursor: pointer; font-weight: 800; }
.qa-item summary span { color: var(--accent2); margin-right: 10px; }
.glossary { display: grid; grid-template-columns: 220px 1fr; gap: 10px 24px; background: white; border: 1px solid var(--line); padding: 24px; }
.glossary dt { font-weight: 900; }
.glossary dd { margin: 0; color: #374151; }
.source-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 24px; list-style: none; padding: 0; }
.source-list li { background: white; border: 1px solid var(--line); padding: 16px; }
.source-list span, footer { color: var(--muted); }
footer { border-top: 1px solid var(--line); padding-top: 30px; padding-bottom: 34px; }
@media (max-width: 860px) {
  nav, .capability-grid, .card-grid, .split, .decision-grid, .source-list, .glossary { display: block; }
  nav span { margin-top: 10px; }
  .principles ol { columns: 1; }
  .card, .qa-item, .source-list li { margin-bottom: 14px; }
  .capability-card { min-height: auto; margin-bottom: 14px; }
  .glossary dt { margin-top: 14px; }
}