/* Q4-first extension: retain the existing palette, identity and native controls. */
.header { height: 76px; }
.hero { gap: 48px; padding: 48px 0 40px; grid-template-columns: 1.15fr 1fr; }
h1 { font-size: clamp(48px, 5.2vw, 74px); letter-spacing: -3.6px; margin: 20px 0 24px; }
.hero-lead { font-size: 21px; max-width: 470px; }
.hero-description { font-size: 15px; line-height: 1.75; }
.preview-note { font-size: 12px; line-height: 1.65; }
.preview-note .micro-label { font-size: 10px; }
.topology { padding: 20px; }
.device { padding: 16px 18px; }
.device h2 { font-size: 25px; }
.device-detail { font-size: 12px; }
.connection { height: 32px; }
.topology-output { margin-top: 18px; padding-top: 16px; }
.topology-output strong { font-size: 14px; }
.topology-output div > span { font-size: 12px; }
.topology-note { font-family: var(--sans); font-size: 12px; line-height: 1.65; }
.principles { font-size: 12px; }
.measurements { padding: 44px 0 54px; }
.section-heading h2 { font-size: 44px; }
.evidence-summary { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); border-block: 1px solid var(--line); padding-block: 22px; gap: 24px; }
.evidence-summary > div { min-width: 0; }
.evidence-summary strong { display: block; font-size: 40px; font-weight: 500; line-height: 1.2; letter-spacing: -1.5px; color: var(--mint); }
.evidence-summary span { display: block; font-size: 13px; line-height: 1.6; margin-top: 7px; color: var(--muted); }
.evidence-scope { font-size: 14px; color: var(--muted); max-width: 850px; line-height: 1.8; margin: 20px 0 28px; }
.evidence-scope strong { color: var(--text); font-weight: 500; }
.capacity-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.capacity-card { min-width: 0; border: 1px solid var(--line); background: var(--surface); padding: 24px; border-top: 2px solid var(--coral); }
.capacity-card:nth-child(2) { border-top-color: var(--mint); }
.capacity-card h3 { margin: 12px 0 8px; font-size: 27px; font-weight: 500; letter-spacing: -.7px; }
.artifact { color: var(--muted); font-size: 13px; margin: 0 0 22px; }
.table-scroll { max-width: 100%; overflow: auto; }
.table-scroll:focus-visible { outline: 2px solid var(--mint); outline-offset: 4px; }
.capacity-card table { width: 100%; min-width: 280px; border-collapse: collapse; font-variant-numeric: tabular-nums; font-size: 13px; }
.capacity-card caption { text-align: left; color: var(--muted); font-size: 12px; padding-bottom: 12px; }
.capacity-card th, .capacity-card td { text-align: left; padding: 11px 8px; border-bottom: 1px solid var(--line); }
.capacity-card thead th { color: var(--muted); font-weight: 400; font-size: 12px; }
.capacity-card tbody th { font-family: var(--mono); font-weight: 400; }
.capacity-note { color: var(--muted); font-size: 13px; line-height: 1.7; margin: 18px 0 0; }
.methodology { margin-top: 24px; }
.methodology-body p { font-size: 14px; line-height: 1.8; color: var(--muted); }
.methodology-body code { overflow-wrap: anywhere; }
.history-link { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 16px; font-size: 13px; color: var(--muted); margin-top: 24px; }
.history-link span { font-size: 12px; }
.start, .community { padding-block: 58px; }
.start p, .community p { font-size: 14px; }
.terminal-body { font-size: 12px; }
.terminal-foot { font-size: 11px; }
.history-intro { padding-block: 48px 0; }
.history-intro p { max-width: 720px; font-size: 16px; color: var(--muted); }
@media (max-width: 960px) {
  .hero { gap: 28px; }
  .capacity-card { padding: 18px; }
  .capacity-card h3 { font-size: 24px; }
  .capacity-grid { gap: 18px; }
}
@media (max-width: 660px) {
  .header { height: 70px; }
  .hero { grid-template-columns: 1fr; gap: 30px; padding: 34px 0; }
  h1 { font-size: 49px; letter-spacing: -2.8px; }
  .hero-lead { font-size: 20px; }
  .topology { width: 100%; max-width: none; }
  .principles { font-size: 12px; }
  .measurements { padding-top: 34px; }
  .section-heading h2 { font-size: 37px; }
  .evidence-summary { gap: 12px; padding-block: 18px; }
  .evidence-summary strong { font-size: 25px; letter-spacing: -.7px; }
  .evidence-summary span { font-size: 12px; }
  .capacity-grid { grid-template-columns: 1fr; }
  .capacity-card { padding: 20px; }
  .capacity-card h3 { font-size: 25px; }
  .capacity-card .eyebrow { font-size: 11px; }
  .capacity-card caption, .capacity-card thead th { font-size: 13px; }
  .evidence-scope { font-size: 14px; }
  .start, .community { padding-block: 42px; }
  .terminal-body { font-size: 11px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }