:root {
  --ink: #20221e;
  --ink-2: #343831;
  --paper: #eceee8;
  --white: #f8f9f5;
  --line: #c8cdc1;
  --muted: #666c61;
  --accent: #a8b86c;
  --accent-dark: #667634;
  --max: 1240px;
  --radius: 6px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Avenir Next", Avenir, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.72;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
h1, h2, h3, p, figure, blockquote { margin-top: 0; }
h1, h2, h3 { line-height: 1.12; letter-spacing: 0; }

.skip-link { position: fixed; top: -60px; left: 16px; z-index: 100; padding: 9px 14px; color: var(--ink); background: var(--accent); }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 40; color: var(--white); background: rgba(32,34,30,.96); border-bottom: 1px solid rgba(255,255,255,.12); backdrop-filter: blur(14px); }
.nav-shell { width: min(var(--max), calc(100% - 40px)); min-height: 76px; margin: 0 auto; display: flex; align-items: center; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 240px; line-height: 1.05; }
.brand-monogram { display: grid; place-items: center; width: 44px; height: 34px; color: var(--ink); background: var(--accent); font-size: 11px; font-weight: 800; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 15px; }
.brand small { margin-top: 5px; color: #aeb4aa; font-size: 10px; text-transform: uppercase; }
.main-nav { display: flex; align-items: center; gap: 2px; margin-left: auto; }
.main-nav a { position: relative; padding: 26px 13px 25px; color: #d5d9d0; font-size: 13px; }
.main-nav a::after { content: ""; position: absolute; right: 13px; bottom: 18px; left: 13px; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .25s cubic-bezier(.16,1,.3,1); }
.main-nav a:hover::after, .main-nav a[aria-current="page"]::after { transform: scaleX(1); }
.main-nav a[aria-current="page"] { color: #fff; }
.nav-cta { display: inline-flex; align-items: center; gap: 18px; min-height: 42px; padding: 0 18px; color: var(--ink); background: var(--accent); font-size: 13px; font-weight: 700; transition: background .2s ease, transform .2s ease; }
.nav-cta:hover { background: #c1ce91; }
.nav-cta:active { transform: translateY(1px); }
.menu-button { display: none; width: 42px; height: 42px; margin-left: auto; padding: 11px; border: 1px solid #5a5f56; background: transparent; }
.menu-button span { display: block; height: 1px; margin: 5px 0; background: #fff; }

.section-shell { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.kicker { margin-bottom: 16px; color: var(--accent-dark); font-size: 11px; font-weight: 800; line-height: 1.3; text-transform: uppercase; }
.section-index { color: var(--muted); font-family: "SFMono-Regular", Consolas, monospace; font-size: 11px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 18px; min-height: 50px; padding: 0 22px; border: 1px solid var(--ink); border-radius: 0; font-size: 14px; font-weight: 700; transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease; }
.button:active { transform: translateY(1px); }
.button-accent { color: var(--ink); background: var(--accent); border-color: var(--accent); }
.button-accent:hover { background: #c1ce91; border-color: #c1ce91; }
.button-outline-light { color: #fff; border-color: rgba(255,255,255,.65); }
.button-outline-light:hover { color: var(--ink); background: #fff; }
.button-dark { color: #fff; background: var(--ink); }
.button-dark:hover { color: var(--ink); background: var(--accent); border-color: var(--accent); }
.text-link { display: inline-flex; align-items: center; gap: 16px; color: var(--accent-dark); font-size: 13px; font-weight: 750; }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }

.home-hero { position: relative; min-height: 700px; display: grid; align-items: center; overflow: hidden; color: #fff; background: var(--ink); }
.hero-image, .hero-shade { position: absolute; inset: 0; }
.hero-image { background: url("/static/images/founder-workspace.webp") 54% center / cover no-repeat; }
.hero-shade { background: rgba(20,22,18,.56); }
.hero-content { position: relative; z-index: 1; width: min(var(--max), calc(100% - 40px)); margin: 0 auto; padding: 110px 0 126px; }
.hero-content > * { max-width: 650px; }
.hero-content .kicker { color: var(--accent); }
.hero-content h1 { margin-bottom: 24px; font-size: clamp(58px, 7vw, 94px); font-weight: 550; line-height: .98; }
.hero-statement { margin-bottom: 12px; font-size: 23px; font-weight: 650; }
.hero-detail { color: #d3d8cf; font-size: 16px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-index { position: absolute; right: 0; bottom: 0; left: 0; z-index: 2; display: grid; grid-template-columns: .55fr repeat(3, 1fr); color: #d6dbd2; background: rgba(32,34,30,.94); border-top: 1px solid rgba(255,255,255,.16); }
.hero-index span { padding: 18px 24px; border-right: 1px solid #4b4f47; text-align: center; font-size: 10px; text-transform: uppercase; }
.hero-index span:first-child { color: var(--accent); }

.manifesto { display: grid; grid-template-columns: 120px minmax(0, 1.6fr) minmax(280px, .65fr); gap: 55px; padding-top: 120px; padding-bottom: 120px; }
.manifesto-copy h2, .section-title-row h2, .signal-copy h2, .fit-heading h2, .contact-cta h2, .page-intro h1 { font-size: clamp(40px, 5vw, 66px); font-weight: 520; }
.manifesto-copy h2 { max-width: 780px; margin-bottom: 28px; }
.manifesto-copy > p:last-child { max-width: 720px; color: var(--ink-2); font-size: 18px; }
.manifesto-note { align-self: end; padding-top: 22px; border-top: 2px solid var(--ink); }
.manifesto-note strong { font-size: 13px; }
.manifesto-note ul { margin: 18px 0 0; padding: 0; list-style: none; }
.manifesto-note li { padding: 10px 0; border-top: 1px solid var(--line); color: var(--ink-2); font-size: 13px; }

.services-band { padding: 110px 0; background: var(--white); }
.section-title-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; margin-bottom: 56px; }
.section-title-row h2 { max-width: 830px; margin-bottom: 0; }
.service-ledger { border-top: 1px solid var(--ink); }
.service-row { display: grid; grid-template-columns: 70px minmax(0, 1.4fr) minmax(170px, .55fr) 26px; gap: 28px; align-items: center; min-height: 150px; padding: 26px 0; border-bottom: 1px solid var(--line); transition: padding .25s cubic-bezier(.16,1,.3,1), background .25s ease; }
.service-row:hover { padding-right: 18px; padding-left: 18px; background: #eef0e9; }
.service-row > span { color: var(--accent-dark); font-family: "SFMono-Regular", Consolas, monospace; font-size: 12px; }
.service-row h3 { margin-bottom: 10px; font-size: 30px; font-weight: 560; }
.service-row p { max-width: 620px; margin: 0; color: var(--muted); font-size: 14px; }
.service-row em { color: var(--muted); font-size: 12px; font-style: normal; text-transform: uppercase; }

.signal-section { display: grid; grid-template-columns: .78fr 1.22fr; gap: 90px; align-items: center; padding-top: 125px; padding-bottom: 125px; }
.signal-copy h2 { margin-bottom: 24px; }
.signal-copy > p:not(.kicker) { color: var(--ink-2); font-size: 17px; }
.signal-copy .button { margin-top: 24px; }
.signal-board { color: #eef0e9; background: var(--ink); border: 1px solid #4a4e46; }
.board-head, .board-foot { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 15px 20px; color: #9fa59b; font-family: "SFMono-Regular", Consolas, monospace; font-size: 10px; text-transform: uppercase; }
.board-head { border-bottom: 1px solid #454940; }
.board-query { padding: 30px; border-bottom: 1px solid #454940; }
.board-query small, .board-query strong { display: block; }
.board-query small { margin-bottom: 8px; color: var(--accent); font-size: 10px; }
.board-query strong { font-size: 21px; }
.board-grid { display: grid; grid-template-columns: 1fr 1fr; }
.board-grid > div { padding: 24px; border-right: 1px solid #454940; border-bottom: 1px solid #454940; }
.board-grid > div:nth-child(even) { border-right: 0; }
.board-grid span, .board-grid strong { display: block; }
.board-grid span { color: #969c92; font-size: 10px; text-transform: uppercase; }
.board-grid strong { margin: 7px 0 17px; font-size: 13px; }
.board-grid i { display: block; height: 4px; background: #42463e; }
.board-grid i::after { content: ""; display: block; width: var(--level); height: 100%; background: var(--accent); }
.board-foot { justify-content: flex-start; border-top: 0; }
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); animation: breathe 2.4s ease-in-out infinite; }

.process-band { padding: 110px 0; color: #eff1ec; background: var(--ink); }
.section-title-row.light .kicker { color: var(--accent); }
.section-title-row.light > p { max-width: 390px; margin: 0; color: #aab0a6; font-size: 14px; }
.process-list { margin: 0; padding: 0; border-top: 1px solid #4a4e46; list-style: none; }
.process-list li { display: grid; grid-template-columns: 90px 1fr; gap: 30px; padding: 32px 0; border-bottom: 1px solid #4a4e46; }
.process-list li > span { color: var(--accent); font-family: "SFMono-Regular", Consolas, monospace; }
.process-list small { color: #8e958a; font-size: 10px; }
.process-list h3 { margin: 7px 0; font-size: 25px; font-weight: 560; }
.process-list p { max-width: 650px; margin: 0; color: #adb3a9; font-size: 14px; }

.fit-section { display: grid; grid-template-columns: .75fr 1.25fr; gap: 90px; padding-top: 120px; padding-bottom: 120px; }
.fit-heading h2 { margin-bottom: 0; }
.fit-list { border-top: 1px solid var(--ink); }
.fit-list > div { display: grid; grid-template-columns: 58px 190px 1fr; gap: 24px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.fit-list span { color: var(--accent-dark); font-family: "SFMono-Regular", Consolas, monospace; font-size: 11px; }
.fit-list strong { font-size: 16px; }
.fit-list p { margin: 0; color: var(--muted); font-size: 14px; }

.insights-preview { padding-top: 20px; padding-bottom: 120px; }
.insight-list { border-top: 1px solid var(--ink); }
.insight-row { display: grid; grid-template-columns: 64px minmax(0, 1fr) 48px; gap: 30px; align-items: start; padding: 34px 0; border-bottom: 1px solid var(--line); }
.insight-row > span { color: var(--accent-dark); font-family: "SFMono-Regular", Consolas, monospace; font-size: 11px; }
.insight-row small { color: var(--accent-dark); font-size: 10px; text-transform: uppercase; }
.insight-row h3, .insight-row h2 { max-width: 820px; margin: 8px 0 12px; font-size: 27px; font-weight: 560; }
.insight-row h2 { font-size: 34px; }
.insight-row h3 a:hover, .insight-row h2 a:hover { color: var(--accent-dark); }
.insight-row p { max-width: 780px; margin: 0; color: var(--muted); font-size: 14px; }
.circle-arrow { display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid var(--ink); border-radius: 50%; transition: color .2s ease, background .2s ease; }
.circle-arrow:hover { background: var(--accent); }

.contact-cta { padding: 105px 0; color: #fff; background: #31342e; }
.contact-cta .kicker { color: var(--accent); }
.contact-cta h2 { margin-bottom: 18px; }
.contact-cta p { max-width: 630px; color: #c5cbc0; font-size: 17px; }
.contact-cta .button { margin-top: 22px; }

.page-intro { padding: 110px 0 100px; background: var(--white); border-bottom: 1px solid var(--line); }
.page-intro .section-shell { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 60px; }
.page-intro h1 { max-width: 950px; margin-bottom: 25px; }
.page-intro p:last-child { max-width: 760px; margin-bottom: 0; color: var(--muted); font-size: 18px; }

.service-details { padding-top: 40px; padding-bottom: 90px; }
.service-detail { scroll-margin-top: 100px; display: grid; grid-template-columns: 80px minmax(0, 1fr) 280px; gap: 54px; padding: 70px 0; border-bottom: 1px solid var(--line); }
.detail-number { color: var(--accent-dark); font-family: "SFMono-Regular", Consolas, monospace; }
.service-detail h2 { margin-bottom: 22px; font-size: 43px; font-weight: 540; }
.detail-lead { max-width: 710px; color: var(--ink-2); font-size: 18px; }
.service-detail h3 { margin-top: 35px; font-size: 13px; text-transform: uppercase; }
.service-detail ul { margin: 15px 0 0; padding: 0; list-style: none; }
.service-detail li { padding: 11px 0; border-top: 1px solid var(--line); font-size: 14px; }
.service-detail aside { align-self: start; display: grid; padding: 25px; color: #eef0e9; background: var(--ink); }
.service-detail aside small { margin-bottom: 14px; color: var(--accent); font-size: 10px; text-transform: uppercase; }
.service-detail aside span { padding: 9px 0; border-top: 1px solid #474b43; font-size: 13px; }
.service-detail aside a { display: flex; justify-content: space-between; gap: 15px; margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--accent); color: var(--accent); font-size: 12px; }
.boundary-band { padding: 95px 0; background: var(--accent); }
.boundary-band .section-shell { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; }
.boundary-band h2 { max-width: 520px; font-size: 45px; font-weight: 540; }
.boundary-band .kicker { color: var(--ink); }
.boundary-band ul { margin: 0; padding: 0; border-top: 1px solid var(--ink); list-style: none; }
.boundary-band li { padding: 17px 0; border-bottom: 1px solid rgba(32,34,30,.35); }

.approach-steps { position: relative; padding-top: 55px; padding-bottom: 110px; }
.approach-rail { position: absolute; top: 0; bottom: 90px; left: 39px; width: 1px; background: var(--line); }
.approach-step { position: relative; display: grid; grid-template-columns: 80px minmax(0, 1fr) 250px; gap: 54px; padding: 55px 0; border-bottom: 1px solid var(--line); }
.approach-step > span { position: relative; z-index: 1; align-self: start; width: 80px; padding: 8px 0; color: var(--accent-dark); background: var(--paper); font-family: "SFMono-Regular", Consolas, monospace; }
.approach-step small { color: var(--accent-dark); font-size: 10px; }
.approach-step h2 { margin: 8px 0 18px; font-size: 38px; font-weight: 540; }
.approach-step p { max-width: 700px; color: var(--ink-2); }
.approach-step aside { display: grid; align-content: start; gap: 8px; padding-top: 30px; }
.approach-step aside strong { margin-bottom: 5px; font-size: 11px; text-transform: uppercase; }
.approach-step aside em { padding: 8px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; font-style: normal; }
.principles { display: grid; grid-template-columns: .7fr 1.3fr; gap: 90px; padding-bottom: 120px; }
.principles h2 { font-size: 44px; font-weight: 540; }
.principles dl { margin: 0; border-top: 1px solid var(--ink); }
.principles dl > div { display: grid; grid-template-columns: 170px 1fr; gap: 30px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.principles dt { font-weight: 700; }
.principles dd { margin: 0; color: var(--muted); }

.about-story { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; padding-top: 110px; padding-bottom: 120px; }
.about-story figure { margin: 0; }
.about-story img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; object-position: 50% center; }
.about-story figcaption { padding-top: 10px; color: var(--muted); font-size: 10px; }
.about-story h2 { margin-bottom: 25px; font-size: 46px; font-weight: 540; }
.about-story > div > p:not(.kicker) { color: var(--ink-2); font-size: 17px; }
.about-story blockquote { margin: 42px 0 0; padding: 25px 0 0 25px; border-top: 1px solid var(--ink); border-left: 3px solid var(--accent); font-size: 22px; font-weight: 600; }
.operating-model { padding: 100px 0; color: #eef0e9; background: var(--ink); }
.operating-model .kicker { color: var(--accent); }
.model-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 48px; border-top: 1px solid #4b4f47; }
.model-grid > div { min-height: 250px; padding: 28px; border-right: 1px solid #4b4f47; }
.model-grid > div:last-child { border-right: 0; }
.model-grid span { color: var(--accent); font-family: "SFMono-Regular", Consolas, monospace; font-size: 11px; }
.model-grid strong { display: block; margin: 60px 0 12px; font-size: 19px; }
.model-grid p { margin: 0; color: #adb3a9; font-size: 13px; }

.insights-index { display: grid; grid-template-columns: 190px 1fr; gap: 65px; padding-top: 90px; padding-bottom: 120px; }
.insight-filter { position: sticky; top: 105px; align-self: start; display: grid; gap: 8px; }
.insight-filter strong { margin-bottom: 10px; font-size: 12px; }
.insight-filter span { padding: 8px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }

.article-shell { width: min(1060px, calc(100% - 40px)); margin: 0 auto; padding: 42px 0 100px; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 58px; color: var(--muted); font-size: 11px; }
.breadcrumbs a:hover { color: var(--accent-dark); }
.article-header { max-width: 900px; }
.article-header h1 { margin-bottom: 22px; font-size: clamp(42px, 6vw, 72px); font-weight: 540; }
.article-header > p:not(.kicker) { max-width: 810px; color: var(--muted); font-size: 19px; }
.article-header > div { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 25px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.article-cover { margin: 55px 0 65px; }
.article-cover img { width: 100%; aspect-ratio: 16 / 8; object-fit: cover; object-position: center 42%; }
.article-cover figcaption { padding-top: 10px; color: var(--muted); font-size: 10px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 740px) 210px; gap: 80px; }
.article-lead { margin-bottom: 48px; padding-left: 24px; border-left: 3px solid var(--accent); font-size: 20px; font-weight: 560; }
.article-body section { scroll-margin-top: 105px; margin-bottom: 48px; }
.article-body h2 { margin-bottom: 20px; font-size: 31px; font-weight: 560; }
.article-body p { color: var(--ink-2); }
.article-body ul { margin: 24px 0; padding: 20px 25px 20px 45px; background: #e1e4dc; border-left: 3px solid var(--accent); }
.article-body li { padding: 5px 0; }
.article-note { margin-top: 58px; padding: 25px; border: 1px solid #929b73; background: #e7ead9; }
.article-note strong { display: block; margin-bottom: 8px; }
.article-note p { margin: 0; }
.article-toc > div { position: sticky; top: 105px; display: grid; gap: 8px; padding-left: 20px; border-left: 1px solid var(--line); }
.article-toc strong { margin-bottom: 7px; font-size: 11px; }
.article-toc a { color: var(--muted); font-size: 11px; line-height: 1.5; }
.article-toc a:hover { color: var(--accent-dark); }
.related-articles { padding-bottom: 110px; }
.related-articles h2 { font-size: 43px; font-weight: 540; }
.related-articles > div { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--ink); }
.related-articles a { display: grid; grid-template-columns: 1fr 24px; gap: 10px; min-height: 150px; padding: 25px; border-right: 1px solid var(--line); }
.related-articles a:last-child { border-right: 0; }
.related-articles a:hover { background: #e1e4dc; }
.related-articles small { grid-column: 1 / 3; color: var(--accent-dark); font-size: 10px; }
.related-articles strong { font-size: 20px; }

.contact-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 95px; padding-top: 100px; padding-bottom: 120px; }
.contact-direct { position: sticky; top: 110px; align-self: start; }
.contact-direct h2 { overflow-wrap: anywhere; font-size: 37px; font-weight: 540; }
.contact-direct > p:not(.kicker) { color: var(--muted); }
.copy-email { padding: 10px 0; border: 0; border-bottom: 1px solid var(--ink); color: var(--ink); background: transparent; cursor: pointer; font-weight: 700; }
.availability { display: flex; align-items: center; gap: 10px; margin-top: 48px; color: var(--muted); font-size: 12px; }
.contact-form { display: grid; gap: 24px; padding: 38px; background: var(--white); border: 1px solid var(--line); }
.contact-form label { display: grid; gap: 8px; }
.contact-form label > span { font-size: 13px; font-weight: 700; }
.contact-form input, .contact-form textarea { width: 100%; padding: 13px 14px; color: var(--ink); background: transparent; border: 1px solid #aeb4a7; border-radius: 0; outline: none; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent-dark); box-shadow: inset 0 0 0 1px var(--accent-dark); }
.contact-form [aria-invalid="true"] { border-color: #a44f42; }
.contact-form small, .form-note { color: var(--muted); font-size: 10px; }
.contact-form .button { justify-self: start; }
.form-note { margin: 0; }
.form-status { display: none; padding: 12px 14px; border-left: 3px solid var(--accent-dark); background: #e4e7dc; font-size: 12px; }
.form-status.is-visible { display: block; }
.form-status.is-error { border-color: #a44f42; background: #f0dfdc; }

.legal-copy { width: min(760px, calc(100% - 40px)); margin: 0 auto; padding: 75px 0 120px; }
.legal-date { color: var(--muted); font-size: 11px; }
.legal-copy section { margin-top: 48px; }
.legal-copy h2 { margin-bottom: 16px; font-size: 28px; font-weight: 560; }
.legal-copy p { color: var(--ink-2); }

.site-footer { padding: 75px max(20px, calc((100vw - var(--max)) / 2)) 25px; color: #d9ddd5; background: #171914; }
.footer-main { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 80px; padding-bottom: 60px; }
.footer-brand { color: #fff; }
.footer-main > div:first-child > p { max-width: 470px; margin-top: 23px; color: #959c91; font-size: 13px; }
.footer-main > div:not(:first-child) { display: grid; align-content: start; gap: 10px; }
.footer-main > div:not(:first-child) strong { margin-bottom: 10px; color: #fff; font-size: 12px; }
.footer-main > div:not(:first-child) a { color: #9ea59a; font-size: 12px; }
.footer-main a:hover { color: var(--accent); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 22px; border-top: 1px solid #373a34; color: #737a70; font-size: 10px; text-transform: uppercase; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@keyframes breathe { 0%, 100% { opacity: .5; transform: scale(.8); } 50% { opacity: 1; transform: scale(1); } }

@media (max-width: 960px) {
  .nav-shell { min-height: 68px; }
  .main-nav { position: absolute; top: 67px; right: 0; left: 0; display: none; padding: 8px 20px 18px; background: var(--ink); border-bottom: 1px solid #4b4f47; }
  .main-nav.is-open { display: grid; }
  .main-nav a { padding: 12px 0; border-bottom: 1px solid #41453e; }
  .main-nav a::after { display: none; }
  .menu-button { display: block; }
  .nav-cta { display: none; }
  .home-hero { min-height: 670px; }
  .hero-image { background-position: 59% center; }
  .hero-shade { background: rgba(20,22,18,.63); }
  .manifesto { grid-template-columns: 90px 1fr; }
  .manifesto-note { grid-column: 2; }
  .signal-section, .fit-section, .principles, .contact-layout { grid-template-columns: 1fr; }
  .signal-board { max-width: 760px; }
  .fit-list > div { grid-template-columns: 50px 170px 1fr; }
  .service-detail, .approach-step { grid-template-columns: 60px minmax(0, 1fr); }
  .service-detail aside, .approach-step aside { grid-column: 2; }
  .boundary-band .section-shell { grid-template-columns: 1fr 1fr; }
  .about-story { gap: 45px; }
  .model-grid { grid-template-columns: 1fr 1fr; }
  .model-grid > div:nth-child(2) { border-right: 0; }
  .model-grid > div:nth-child(-n+2) { border-bottom: 1px solid #4b4f47; }
  .article-layout { grid-template-columns: 1fr; }
  .article-toc { display: none; }
  .contact-direct { position: static; }
}

@media (max-width: 680px) {
  body { font-size: 15px; }
  .nav-shell { width: calc(100% - 28px); }
  .brand { min-width: 0; }
  .brand small { display: none; }
  .section-shell { width: calc(100% - 32px); }
  .home-hero { min-height: 690px; }
  .hero-image { background-position: 57% center; }
  .hero-shade { background: rgba(20,22,18,.69); }
  .hero-content { width: calc(100% - 32px); padding: 82px 0 145px; }
  .hero-content h1 { font-size: 52px; }
  .hero-statement { font-size: 19px; }
  .hero-actions .button { width: 100%; }
  .hero-index { grid-template-columns: 1fr 1fr; }
  .hero-index span { padding: 13px 8px; }
  .hero-index span:nth-child(2) { border-right: 0; }
  .hero-index span:nth-child(-n+2) { border-bottom: 1px solid #4b4f47; }
  .manifesto { grid-template-columns: 1fr; gap: 35px; padding-top: 75px; padding-bottom: 75px; }
  .manifesto-note { grid-column: auto; }
  .manifesto-copy h2, .section-title-row h2, .signal-copy h2, .fit-heading h2, .contact-cta h2, .page-intro h1 { font-size: 37px; }
  .services-band, .process-band { padding: 75px 0; }
  .section-title-row { align-items: flex-start; flex-direction: column; margin-bottom: 38px; }
  .service-row { grid-template-columns: 38px 1fr 24px; gap: 15px; min-height: 0; padding: 25px 0; }
  .service-row em { grid-column: 2; }
  .service-row h3 { font-size: 23px; }
  .signal-section, .fit-section { gap: 50px; padding-top: 75px; padding-bottom: 75px; }
  .board-grid { grid-template-columns: 1fr; }
  .board-grid > div { border-right: 0; }
  .process-list li { grid-template-columns: 50px 1fr; gap: 18px; }
  .fit-list > div { grid-template-columns: 38px 1fr; gap: 14px; }
  .fit-list p { grid-column: 2; }
  .insights-preview { padding-bottom: 75px; }
  .insight-row { grid-template-columns: 38px 1fr; gap: 14px; }
  .insight-row .circle-arrow { display: none; }
  .insight-row h3, .insight-row h2 { font-size: 23px; }
  .contact-cta { padding: 75px 0; }
  .page-intro { padding: 72px 0 66px; }
  .page-intro .section-shell { grid-template-columns: 1fr; gap: 25px; }
  .page-intro p:last-child { font-size: 16px; }
  .service-detail, .approach-step { grid-template-columns: 1fr; gap: 24px; padding: 50px 0; }
  .service-detail aside, .approach-step aside { grid-column: auto; }
  .service-detail h2, .approach-step h2 { font-size: 32px; }
  .approach-rail { display: none; }
  .approach-step > span { width: auto; }
  .boundary-band { padding: 70px 0; }
  .boundary-band .section-shell { grid-template-columns: 1fr; gap: 30px; }
  .boundary-band h2 { font-size: 35px; }
  .principles { gap: 35px; padding-bottom: 75px; }
  .principles dl > div { grid-template-columns: 110px 1fr; }
  .about-story { grid-template-columns: 1fr; padding-top: 75px; padding-bottom: 75px; }
  .about-story img { aspect-ratio: 4 / 4.7; }
  .about-story h2 { font-size: 35px; }
  .model-grid { grid-template-columns: 1fr; }
  .model-grid > div { min-height: 190px; border-right: 0; border-bottom: 1px solid #4b4f47; }
  .model-grid strong { margin-top: 40px; }
  .insights-index { grid-template-columns: 1fr; gap: 35px; padding-top: 70px; padding-bottom: 75px; }
  .insight-filter { position: static; grid-template-columns: repeat(3, 1fr); }
  .insight-filter strong { grid-column: 1 / 4; }
  .article-shell { width: calc(100% - 32px); padding-top: 30px; }
  .breadcrumbs { margin-bottom: 38px; }
  .article-header h1 { font-size: 38px; }
  .article-header > p:not(.kicker) { font-size: 17px; }
  .article-cover { margin: 40px 0 48px; }
  .article-cover img { aspect-ratio: 4 / 3; }
  .article-lead { font-size: 18px; }
  .article-body h2 { font-size: 26px; }
  .related-articles > div { grid-template-columns: 1fr; }
  .related-articles a { border-right: 0; border-bottom: 1px solid var(--line); }
  .contact-layout { gap: 50px; padding-top: 70px; padding-bottom: 75px; }
  .contact-direct h2 { font-size: 29px; }
  .contact-form { padding: 25px 20px; }
  .contact-form .button { width: 100%; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 38px; }
  .footer-main > div:first-child { grid-column: 1 / 3; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .status-dot { animation: none; }
}