:root {
  color-scheme: light;
  --ink: #101f2b;
  --muted: #495d6b;
  --line: #dbe4e9;
  --paper: #fff;
  --pale: #f3f7f9;
  --accent: #087564;
  --signal: #6ce5cf;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
body { margin: 0; font-size: 1rem; line-height: 1.65; }
a { color: inherit; text-underline-offset: .3em; }
a:hover { color: var(--accent); }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
p { margin: 0 0 1.2rem; }
h1, h2, h3 { margin: 0; line-height: 1.12; letter-spacing: -.035em; overflow-wrap: anywhere; }
h1 { font-size: clamp(2.75rem, 5.3vw, 4.75rem); font-weight: 650; }
h2 { font-size: clamp(2rem, 3.5vw, 3rem); font-weight: 620; }
h3 { font-size: 1.5rem; font-weight: 620; }
section[id] { scroll-margin-top: 2rem; }
.wrap { width: min(1160px, calc(100% - 4rem)); margin-inline: auto; }
.skip-link { position: absolute; top: -6rem; left: 1rem; padding: .6rem 1rem; background: white; z-index: 2; }
.skip-link:focus { top: 1rem; }
.site-header { display: flex; justify-content: space-between; align-items: center; gap: 2rem; padding-block: 1.6rem; border-bottom: 1px solid var(--line); }
.wordmark { font-weight: 750; font-size: 1.45rem; letter-spacing: -.045em; text-decoration: none; white-space: nowrap; }
nav { display: flex; gap: 2rem; font-size: .9375rem; }
nav a { text-decoration: none; }
nav a:hover { text-decoration: underline; }
.hero { display: grid; grid-template-columns: 1.12fr 1fr; gap: 4rem; align-items: center; padding-block: 5.5rem 6rem; }
.eyebrow { color: var(--accent); font-size: .8125rem; font-weight: 650; letter-spacing: .075em; text-transform: uppercase; margin-bottom: 1.3rem; }
.hero h1 { margin-bottom: 1.7rem; }
.lead { font-size: 1.25rem; line-height: 1.55; max-width: 30rem; }
.hero-copy > p:not(.eyebrow, .lead) { color: var(--muted); max-width: 33rem; }
.text-link { display: inline-block; margin-top: .3rem; color: var(--accent); font-weight: 650; }
.encounter-diagram { margin: 0; padding: 1.65rem 1.5rem 1.4rem; color: white; background: var(--ink); border-radius: .5rem; }
.diagram-heading { display: flex; justify-content: space-between; gap: 1rem; font-size: .875rem; }
.diagram-heading span:last-child { color: #a8bdcb; }
.encounter-diagram svg { display: block; width: 100%; height: auto; margin-block: 1.5rem .8rem; overflow: visible; }
.connection { stroke: var(--signal); stroke-width: 2; }
.carry-path { stroke: #7995a8; stroke-width: 1.5; stroke-dasharray: 3 6; }
.node { fill: #17323f; stroke: var(--signal); stroke-width: 1.5; }
.node-label { fill: white; font-size: 20px; font-weight: 600; }
.diagram-label { fill: #b6cad6; font-size: 12px; letter-spacing: 1px; }
.carry-label { fill: #c3d3dc; font-size: 14px; }
.object { fill: var(--signal); }
figcaption { font-size: .875rem; color: #c3d3dc; padding-top: 1rem; border-top: 1px solid #354c5b; }
.idea-section { padding-block: 4.5rem; border-block: 1px solid var(--line); background: var(--pale); }
.section-heading { max-width: 44rem; }
.section-heading h2 { margin-bottom: 1.2rem; }
.section-heading > p:last-child { color: var(--muted); max-width: 38rem; }
.principles { list-style: none; margin: 3rem 0 2rem; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.75rem; }
.principles li { border-top: 1px solid #acbec9; padding-top: 1rem; }
.step { display: block; font-size: .875rem; color: var(--accent); margin-bottom: 1.4rem; font-variant-numeric: tabular-nums; }
.principles h3 { margin-bottom: .85rem; }
.principles p { color: var(--muted); margin: 0; }
.scope-note { color: var(--muted); margin: 0; max-width: 56rem; font-size: .9375rem; }
.status-section { padding-block: 5rem; display: grid; grid-template-columns: 1.2fr 1fr; gap: 5rem; align-items: start; }
.status-section h2 { margin-bottom: 1.5rem; }
.status-section p:not(.eyebrow) { color: var(--muted); }
.evidence-list { margin: 1.5rem 0 0; padding-left: 1.2rem; }
.evidence-list li { margin-block: .55rem; padding-left: .25rem; }
.evidence-list li::marker { color: var(--accent); }
.research-note { border-left: 2px solid var(--accent); padding-left: 2rem; margin-top: .25rem; }
.research-note h3 { margin-bottom: 1.2rem; }
.research-note p:last-child { margin: 0; }
.site-footer { display: flex; gap: 2rem; justify-content: space-between; align-items: center; padding-block: 1.8rem 2.2rem; border-top: 1px solid var(--line); }
.site-footer p { margin: 0; color: var(--muted); font-size: .875rem; max-width: 29rem; }
.site-footer a { font-size: .875rem; white-space: nowrap; }

@media (max-width: 900px) {
  .hero { gap: 2.5rem; padding-block: 4rem; }
  .status-section { gap: 2.75rem; }
  .principles { gap: 1.75rem; }
}

@media (max-width: 700px) {
  h1 { font-size: clamp(2.1rem, 11vw, 2.75rem); }
  .wrap { width: calc(100% - 2.5rem); }
  .site-header { flex-wrap: wrap; gap: 1rem; padding-block: 1.2rem; }
  nav { gap: 1.25rem; }
  .hero, .status-section { grid-template-columns: 1fr; }
  .hero { padding-block: 3rem; }
  .encounter-diagram { max-width: 31rem; width: 100%; }
  .principles { grid-template-columns: 1fr; gap: 2rem; margin-top: 2.3rem; }
  .step { margin-bottom: .6rem; }
  .idea-section, .status-section { padding-block: 3rem; }
  .research-note { padding-left: 1.25rem; }
  .site-footer { flex-wrap: wrap; gap: 1rem; }
  .site-footer p { flex-basis: 100%; order: 2; }
}