:root {
  color-scheme: dark;
  --background: #1c201c;
  --surface: #252b25;
  --text: #ecece0;
  --muted: #b7beaf;
  --accent: #b4c599;
  --border: #596451;
  --button-bg: #b4c599;
  --button-text: #1c201c;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
:root[data-theme="light"] {
  color-scheme: light;
  --background: #f5f3eb;
  --surface: #e8eadd;
  --text: #282c26;
  --muted: #565d4f;
  --accent: #55603e;
  --border: #919b82;
  --button-bg: #282c26;
  --button-text: #f5f3eb;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-padding-top: 110px; }
body { margin: 0; background: var(--background); color: var(--text); font: 16px/1.65 var(--sans); }
a { color: inherit; text-underline-offset: 5px; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
h1,h2,h3,h4,p { margin: 0; }
h1,h2 { font-family: var(--serif); font-weight: 400; letter-spacing: -.04em; line-height: 1.08; }
h1 { font-size: clamp(48px,5.6vw,78px); margin: 22px 0 26px; }
h2 { font-size: clamp(36px,3.7vw,52px); }
h3 { font-size: 20px; font-weight: 500; }
h4 { font-size: 20px; font-weight: 500; line-height: 1.4; }
p { max-width: 65ch; }
em { color: var(--accent); font-weight: 400; }
.wrap { width: min(1200px,calc(100% - 96px)); margin-inline: auto; }
.section { padding-block: 76px; }
.surface { background: var(--surface); }
.eyebrow { color: var(--accent); font-size: 11px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; }
.small-note { font-size: 13px; color: var(--muted); line-height: 1.65; }
.site-header { position: sticky; top: 0; z-index: 10; background: var(--background); border-bottom: 1px solid var(--border); }
.header-inner { min-height: 86px; display: flex; align-items: center; gap: 30px; }
.wordmark { font-size: 30px; font-weight: 600; letter-spacing: -1.6px; text-decoration: none; }
.wordmark span { color: var(--accent); }
nav { display: flex; gap: 28px; margin-left: auto; font-size: 13px; }
nav a { text-decoration: none; }
.theme-toggle { background: var(--surface); border: 1px solid var(--border); color: var(--text); border-radius: 4px; padding: 10px 13px; font: 12px var(--sans); min-height: 44px; cursor: pointer; white-space: nowrap; }
.theme-toggle:hover { border-color: var(--accent); }
.skip-link { position: fixed; top: -100px; left: 20px; z-index: 20; padding: 12px 20px; color: var(--button-text); background: var(--button-bg); }
.skip-link:focus { top: 12px; }
.hero { display: grid; grid-template-columns: 1.25fr 1fr; gap: 38px 76px; padding-top: 64px; }
.hero-intro { color: var(--muted); max-width: 510px; font-size: 17px; }
.actions { display: flex; gap: 18px 24px; align-items: center; flex-wrap: wrap; margin-top: 28px; }
.button { display: inline-flex; align-items: center; gap: 25px; background: var(--button-bg); color: var(--button-text); padding: 14px 20px; font-size: 14px; text-decoration: none; }
.button:hover { text-decoration: underline; }
.text-link { color: var(--text); font-size: 14px; }
.project-brief { align-self: center; padding: 30px; background: var(--surface); border-top: 2px solid var(--accent); }
.project-brief h2 { font-size: 42px; margin: 18px 0 26px; }
dl { margin: 0; }
dl>div { padding: 13px 0; border-top: 1px solid var(--border); }
dt { font-size: 11px; color: var(--muted); margin-bottom: 4px; }
dd { margin: 0; font-size: 14px; line-height: 1.5; }
dl .decision { padding-bottom: 0; }
.decision dd { color: var(--accent); }
.audience-line { grid-column: 1/-1; max-width: none; border-bottom: 1px solid var(--border); padding: 0 0 24px; font-size: 12px; color: var(--muted); }
.audience-line span { padding-inline: 12px; color: var(--accent); }
.section-heading { margin-bottom: 32px; }
.section-heading h2 { margin: 18px 0; }
.section-heading>p:last-child, .section-intro { color: var(--muted); }
.section>.eyebrow+h2 { margin-top: 18px; }
.section-intro { margin-top: 24px; }
.method { display: grid; grid-template-columns: repeat(4,1fr); gap: 28px; list-style: none; padding: 0; margin: 36px 0 26px; counter-reset: stage; }
.method li { border-top: 1px solid var(--border); padding-top: 18px; counter-increment: stage; }
.method li:before { content: '0' counter(stage) ' /'; color: var(--accent); font-size: 12px; }
.method h3 { margin: 12px 0 8px; }
.method p { font-size: 14px; color: var(--muted); }
.scope-note { grid-column: 1/-1; max-width: none; border-top: 1px solid var(--border); padding-top: 20px; }
.founder-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.founder-grid h2 { margin-top: 18px; }
.founder-grid p:not(.eyebrow) { margin-top: 16px; color: var(--muted); }
.contact .wrap { max-width: 760px; text-align: center; }
.contact h2 { margin: 18px 0 24px; }
.contact p { margin-inline: auto; }
.contact p:not(.eyebrow) { color: var(--muted); }
.contact .actions { justify-content: center; }
.site-footer { padding-block: 30px; display: flex; gap: 25px; align-items: center; justify-content: space-between; }
.site-footer p { color: var(--muted); font-size: 11px; }
@media(max-width:1000px) {
  .wrap { width: calc(100% - 56px); }
  .hero { gap: 30px; }
  .header-inner { gap: 22px; }
  nav { gap: 18px; }
  .project-brief { padding: 24px; }
}
@media(max-width:700px) {
  html { scroll-padding-top: 132px; }
  .wrap { width: calc(100% - 40px); }
  .header-inner { display: grid; grid-template-columns: 1fr auto; gap: 8px 16px; padding-block: 12px; }
  .wordmark { font-size: 27px; }
  .theme-toggle { grid-column: 2; grid-row: 1; }
  nav { grid-column: 1/-1; margin-left: 0; justify-content: space-between; gap: 12px; }
  nav a { padding-block: 4px; }
  .section { padding-block: 52px; }
  .hero { grid-template-columns: 1fr; padding-top: 36px; gap: 30px; }
  h1 { font-size: clamp(43px,10.5vw,68px); }
  h2 { font-size: 37px; }
  .hero-intro { font-size: 16px; }
  .project-brief h2 { font-size: 36px; }
  .audience-line { font-size: 11px; }
  .audience-line span { padding-inline: 4px; }
  .method { grid-template-columns: 1fr 1fr; gap: 24px; }
  .site-footer { flex-wrap: wrap; align-items: flex-start; }
  .site-footer p:last-child { width: 100%; }
}
@media print {
  :root, :root[data-theme="light"], :root[data-theme="dark"] {
    color-scheme: light;
    --background: #fff; --surface: #f0f1eb; --text: #20251e;
    --muted: #424c3b; --accent: #414e32; --border: #919b82;
    --button-bg: #fff; --button-text: #20251e;
  }
  .site-header { position: static; }
  nav,.theme-toggle,.skip-link { display: none !important; }
  .wrap { width: 100%; }
  .section { padding-block: 24px; }
  .hero { padding-top: 24px; }
  h1 { font-size: 42px; }
  h2 { font-size: 30px; }
  .project-brief,.concept,.method li,.engagement { break-inside: avoid; }
  a { text-decoration: underline; }
}

/* V3: one changing example and two concise engagement options. */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.sector-controls { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.sector-controls button { min-height: 44px; padding: 10px 18px; font: 14px var(--sans); color: var(--text); background: var(--background); border: 1px solid var(--accent); cursor: pointer; }
.sector-controls button[aria-pressed="true"] { background: var(--button-bg); color: var(--button-text); }
.sector-controls button:hover { text-decoration: underline; text-underline-offset: 4px; }
.concept { display: grid; grid-template-columns: 1fr 1.3fr; gap: 48px; border-top: 1px solid var(--border); padding-top: 24px; }
.concept + .concept { margin-top: 28px; }
.concept-intro h3 { font: 400 clamp(28px,3vw,40px)/1.15 var(--serif); letter-spacing: -.025em; margin: 14px 0; }
.concept dl>div { display: grid; grid-template-columns: 130px 1fr; gap: 18px; padding-block: 12px; }
.concept dl>div:first-child { border-top: 0; padding-top: 0; }
.concept dt { font-size: 12px; }
.recommendation { font-size: 13px; color: var(--muted); margin-top: 24px; }
.recommendation a { color: var(--accent); }
.capabilities { margin-top: 20px; font-size: 13px; color: var(--accent); max-width: none; }
.engagements { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; margin: 30px 0; }
.engagement { border-top: 1px solid var(--border); padding-top: 22px; min-width: 0; }
.engagement h3 { font: 400 32px/1.15 var(--serif); letter-spacing: -.025em; margin: 16px 0; }
.engagement-promise { font-size: 19px; line-height: 1.5; margin-bottom: 14px; }
.engagement p:not(.eyebrow):not(.engagement-promise) { color: var(--muted); }
.engagement ul { margin: 20px 0; padding-left: 18px; color: var(--muted); font-size: 14px; }
.engagement li { margin-top: 8px; }
@media(max-width:700px) {
  .concept,.engagements,.founder-grid { grid-template-columns: 1fr; gap: 24px; }
  .concept dl>div { grid-template-columns: 100px 1fr; gap: 14px; }
  .sector-controls { gap: 8px; }
  .sector-controls button { padding-inline: 12px; font-size: 13px; }
  .engagements { gap: 32px; }
}
@media print {
  .sector-controls { display: none !important; }
  .concept[hidden] { display: grid !important; }
}

/* Keep the decision brief visible and concise on narrow screens. */
.brief-mobile { display: none; }
@media screen and (max-width:700px) {
  .project-brief > .eyebrow, .project-brief > h2, .brief-desktop { display: none; }
  .brief-mobile { display: grid; gap: 10px; list-style: none; padding: 0; margin: 0; }
  .brief-mobile li + li { border-top: 1px solid var(--border); padding-top: 10px; }
}