:root {
  --ink: #18142f;
  --ink-2: #251c63;
  --violet: #5a39d6;
  --violet-deep: #3b25a7;
  --aqua: #32d5c6;
  --coral: #ff7a6b;
  --lime: #c7f36b;
  --paper: #fbfaf7;
  --white: #ffffff;
  --soft: #f1efff;
  --line: rgba(24, 20, 47, .12);
  --muted: #625e75;
  --shadow: 0 24px 70px rgba(38, 26, 100, .14);
  --radius-lg: 30px;
  --radius-md: 20px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.62;
}
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
.container { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }
.narrow { max-width: 900px; }
.skip-link { position: absolute; left: -999px; top: 0; padding: .75rem 1rem; background: var(--ink); color: white; z-index: 999; }
.skip-link:focus { left: 1rem; top: 1rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 250, 247, .92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.brand { display: inline-flex; align-items: center; gap: .72rem; font-weight: 900; letter-spacing: -.03em; }
.brand-name { font-size: 1.13rem; }
.logo-mark {
  width: 44px; height: 44px; border-radius: 14px;
  display: grid; grid-template-columns: 1fr auto; align-items: center;
  padding: 0 .46rem;
  color: white; background: linear-gradient(145deg, var(--violet), var(--violet-deep));
  box-shadow: 0 10px 22px rgba(83, 53, 205, .26);
}
.logo-g { font-size: 1rem; }
.logo-plus { font-size: 1.35rem; color: var(--aqua); line-height: 1; }
.site-nav { display: flex; align-items: center; gap: .95rem; font-size: .89rem; font-weight: 780; }
.site-nav a:not(.button):hover,
.site-nav a.active { color: var(--violet); }
.nav-toggle { display: none; border: 1px solid var(--line); border-radius: 12px; background: white; padding: .65rem .85rem; font-weight: 800; }

.button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 50px; padding: .85rem 1.2rem; border-radius: 14px;
  border: 0;
  background: var(--violet); color: white; font-weight: 850;
  box-shadow: 0 14px 28px rgba(83, 53, 205, .2);
  transition: transform .18s ease, background .18s ease;
  cursor: pointer;
}
.button:hover { transform: translateY(-2px); background: var(--violet-deep); }
.button-small { min-height: 40px; padding: .6rem .9rem; }
.button-ghost { background: transparent; color: var(--ink-2); border: 1px solid rgba(37, 28, 99, .22); box-shadow: none; }
.button-ghost:hover { background: white; }
.button-light { background: white; color: var(--ink-2); }

.hero {
  position: relative; overflow: hidden;
  padding: 6.4rem 0 5.4rem;
  background:
    radial-gradient(circle at 80% 20%, rgba(50, 213, 198, .24), transparent 24rem),
    radial-gradient(circle at 8% 8%, rgba(90, 57, 214, .18), transparent 26rem),
    linear-gradient(180deg, #fbfaf7 0%, #f4f1ff 100%);
}
.hero-grid-bg {
  position: absolute; inset: 0; opacity: .22;
  background-image: linear-gradient(rgba(90,57,214,.09) 1px, transparent 1px), linear-gradient(90deg, rgba(90,57,214,.09) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.12fr .88fr; gap: 4rem; align-items: center; }
.eyebrow { margin: 0 0 .8rem; color: var(--violet); text-transform: uppercase; letter-spacing: .14em; font-size: .76rem; font-weight: 900; }
h1, h2, h3 { line-height: 1.06; letter-spacing: -.045em; margin-top: 0; }
h1 { font-size: clamp(3.45rem, 7.2vw, 7rem); max-width: 11ch; margin-bottom: 1.4rem; }
h1 span { color: var(--violet); }
h2 { font-size: clamp(2.2rem, 4.2vw, 4.2rem); margin-bottom: 1.2rem; }
h3 { font-size: 1.4rem; margin-bottom: .7rem; }
.hero-lead { font-size: clamp(1.2rem, 2vw, 1.6rem); max-width: 760px; color: #38324f; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2rem; }
.hero-note { margin-top: 1rem; color: var(--muted); font-weight: 650; }

.plus-stage { position: relative; min-height: 470px; }
.plus-symbol {
  position: absolute; inset: 30px 40px 40px 40px;
  border-radius: 38px;
  background: linear-gradient(145deg, var(--ink-2), #4f36b3);
  box-shadow: var(--shadow); overflow: hidden;
}
.plus-symbol::before { content: ""; position: absolute; inset: 16px; border-radius: 26px; border: 1px solid rgba(255,255,255,.16); }
.plus-horizontal, .plus-vertical { position: absolute; left: 50%; top: 50%; background: rgba(255,255,255,.92); border-radius: 30px; transform: translate(-50%, -50%); }
.plus-horizontal { width: 180px; height: 56px; }
.plus-vertical { width: 56px; height: 180px; }
.player-dot { position: absolute; width: 24px; height: 24px; border-radius: 50%; border: 4px solid rgba(255,255,255,.95); }
.dot-1 { left: 20%; top: 25%; background: var(--coral); }
.dot-2 { right: 18%; top: 22%; background: var(--aqua); }
.dot-3 { left: 17%; bottom: 25%; background: var(--lime); }
.dot-4 { right: 20%; bottom: 20%; background: var(--coral); }
.dot-5 { left: 48%; top: 10%; background: var(--aqua); }
.dot-6 { left: 47%; bottom: 10%; background: var(--lime); }
.stage-card { position: absolute; background: white; border: 1px solid var(--line); border-radius: 16px; padding: .9rem 1rem; box-shadow: 0 16px 34px rgba(28,20,70,.14); display: grid; }
.stage-card strong { font-size: 1.45rem; color: var(--violet); line-height: 1; }
.stage-card span { font-size: .82rem; font-weight: 760; color: var(--muted); }
.card-a { left: 0; bottom: 70px; }
.card-b { right: 0; top: 30px; }
.card-c { right: 12px; bottom: 16px; }

.signal-strip { background: var(--ink); color: white; padding: 1.05rem 0; }
.signal-grid { display: flex; justify-content: center; flex-wrap: wrap; gap: .75rem 1.05rem; align-items: center; text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; font-weight: 900; }
.signal-grid b { color: var(--aqua); font-size: 1.25rem; }

.section { padding: 6rem 0; }
.intro-block { text-align: left; }
.large-copy { font-size: 1.24rem; color: #403b54; }
.value-grid { margin-top: 3rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.value-card { background: white; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 1.6rem; min-height: 250px; }
.value-card.featured { background: var(--ink-2); color: white; transform: translateY(-10px); }
.value-card p { color: var(--muted); }
.value-card.featured p { color: rgba(255,255,255,.76); }
.value-icon { display: inline-flex; margin-bottom: 3.5rem; color: var(--violet); font-weight: 900; }
.featured .value-icon { color: var(--aqua); }

.section-heading { display: grid; grid-template-columns: 1.08fr .92fr; gap: 3rem; align-items: end; margin-bottom: 2rem; }
.section-heading > div:last-child p,
.section-heading > p { color: var(--muted); font-size: 1.06rem; }
.section-heading.light > p { color: rgba(255,255,255,.68); }

.mix-section { background: linear-gradient(180deg, #fbfaf7, #f6f4ff); }
.mix-equation { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 1rem; align-items: stretch; }
.mix-card { border-radius: var(--radius-md); padding: 1.5rem; border: 1px solid var(--line); background: white; display: flex; gap: 1.1rem; min-height: 200px; }
.mix-card strong { font-size: 1.22rem; }
.mix-card p { color: var(--muted); margin-bottom: 0; }
.mix-card-idd { background: #f2efff; }
.mix-card-peer { background: #e9fffb; }
.mix-card-group { background: var(--ink-2); color: white; }
.mix-card-group p { color: rgba(255,255,255,.72); }
.mix-number { font-size: 3.6rem; line-height: 1; color: var(--violet); font-weight: 950; letter-spacing: -.08em; }
.mix-card-peer .mix-number { color: #087f75; }
.mix-card-group .mix-number { color: var(--aqua); }
.equation-symbol { display: grid; place-items: center; font-size: 2.3rem; font-weight: 950; color: var(--violet); }
.mix-note { margin-top: 1rem; border-radius: 16px; padding: 1.1rem 1.25rem; border: 1px solid var(--line); background: white; display: grid; gap: .25rem; }
.mix-note span { color: var(--muted); }

.research-callout { background: var(--ink); color: white; }
.research-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 4rem; align-items: center; }
.research-callout .eyebrow { color: var(--aqua); }
.research-callout p { color: rgba(255,255,255,.74); }
.research-callout .text-link { color: var(--aqua); }
.research-stat { background: linear-gradient(145deg, var(--violet), var(--violet-deep)); border-radius: var(--radius-lg); min-height: 330px; padding: 2rem; display: flex; flex-direction: column; justify-content: space-between; box-shadow: var(--shadow); }
.stat-number { font-size: clamp(5rem, 10vw, 8rem); font-weight: 950; line-height: .9; letter-spacing: -.08em; color: var(--aqua); }
.stat-label { font-size: 1.1rem; font-weight: 760; max-width: 26ch; }

.section-dark { background: var(--ink); color: white; }
.section-dark .eyebrow { color: var(--aqua); }
.founding-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius-md); overflow: hidden; }
.founding-stat { min-height: 165px; padding: 1.5rem; background: var(--ink); display: flex; flex-direction: column; justify-content: space-between; }
.founding-stat strong { font-size: 1.35rem; }
.founding-stat span { color: rgba(255,255,255,.64); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.fit-card { background: white; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 2rem; box-shadow: var(--shadow); }
.fit-card ul { list-style: none; padding: 0; margin: 1.2rem 0 0; }
.fit-card li { position: relative; padding: .75rem 0 .75rem 2.1rem; border-bottom: 1px solid var(--line); }
.fit-card li:last-child { border-bottom: 0; }
.fit-card li::before { content: "+"; position: absolute; left: 0; top: .55rem; width: 1.45rem; height: 1.45rem; border-radius: 8px; display: grid; place-items: center; color: white; background: var(--violet); font-weight: 900; }
.section-soft { background: var(--soft); }
.support-grid p { color: #49445c; }

.role-group-heading { margin-top: 2.2rem; margin-bottom: .9rem; display: flex; justify-content: space-between; gap: 2rem; align-items: end; }
.role-group-heading span { font-size: 1.3rem; font-weight: 900; letter-spacing: -.03em; }
.role-group-heading p { margin: 0; color: var(--muted); }
.host-heading { margin-top: 3.3rem; }
.join-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
.join-card { min-height: 330px; border-radius: var(--radius-md); padding: 1.6rem; border: 1px solid var(--line); display: flex; flex-direction: column; background: white; }
.join-card p { color: #514c65; }
.small-copy { font-size: .94rem; }
.join-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2.5rem; }
.role-pill { display: inline-flex; padding: .38rem .7rem; border-radius: 999px; background: var(--soft); color: var(--violet-deep); text-transform: uppercase; letter-spacing: .08em; font-size: .74rem; font-weight: 900; }
.join-plus { font-size: 2rem; line-height: 1; color: var(--violet); font-weight: 900; }
.peer-card { background: #e9fffb; }
.host-card { background: #fff1ef; }
.assistant-card { background: #f1fbdc; }
.text-link { margin-top: auto; font-weight: 900; color: var(--violet-deep); }
.text-link span { transition: margin .18s ease; }
.text-link:hover span { margin-left: .25rem; }
.role-note { margin-top: 1.2rem; border: 1px solid var(--line); border-radius: 16px; padding: 1rem 1.2rem; background: white; display: grid; gap: .25rem; }
.role-note span { color: var(--muted); }

.sponsor-section { background: linear-gradient(180deg, #f6f3ff, #fbfaf7); }
.sponsor-intro { display: grid; grid-template-columns: .9fr 1.1fr; gap: 4rem; align-items: start; }
.sponsor-units { margin-top: 2.3rem; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.sponsor-units article { min-height: 160px; padding: 1.4rem; border-radius: var(--radius-md); background: var(--ink-2); color: white; display: flex; flex-direction: column; justify-content: space-between; }
.sponsor-units strong { font-size: 2.1rem; color: var(--aqua); letter-spacing: -.04em; }
.sponsor-units span { color: rgba(255,255,255,.74); font-weight: 750; }
.sponsor-action { margin-top: 1.2rem; padding: 1.2rem 1.3rem; border-radius: var(--radius-md); background: white; border: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 2rem; }
.sponsor-action p { margin: 0; color: var(--muted); }

.founder-section { background: linear-gradient(180deg, #fbfaf7, #f6f1ff); }
.founder-grid { display: grid; grid-template-columns: 290px 1fr; gap: 4rem; align-items: center; }
.founder-lockup { width: 260px; height: 260px; border-radius: 54px; background: linear-gradient(145deg, var(--violet), var(--violet-deep)); color: white; display: flex; align-items: center; justify-content: center; gap: .25rem; box-shadow: var(--shadow); transform: rotate(-4deg); }
.founder-lockup span { font-size: 2rem; font-weight: 900; letter-spacing: -.05em; }
.founder-lockup b { color: var(--aqua); font-size: 4.5rem; line-height: 1; }
.signature { font-weight: 900; }

.cta-section { background: linear-gradient(120deg, var(--violet-deep), var(--violet)); color: white; padding: 4.5rem 0; }
.cta-section .eyebrow { color: var(--aqua); }
.cta-grid { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.cta-grid h2 { margin-bottom: 0; max-width: 780px; }

.site-footer { background: #151126; color: rgba(255,255,255,.72); padding: 4rem 0 1.5rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 3rem; }
.footer-grid > div { display: flex; flex-direction: column; gap: .5rem; }
.footer-grid strong { color: white; }
.footer-brand { color: white; }
.footer-bottom { margin-top: 3rem; padding-top: 1.2rem; border-top: 1px solid rgba(255,255,255,.12); display: flex; justify-content: space-between; gap: 1rem; font-size: .9rem; }

/* Secondary and research pages */
.secondary-hero, .form-hero {
  padding: 5.2rem 0 3.4rem;
  background:
    radial-gradient(circle at 85% 20%, rgba(50, 213, 198, .2), transparent 25rem),
    linear-gradient(180deg, #fbfaf7, #f3f0ff);
}
.secondary-hero h1, .form-hero h1 { font-size: clamp(3rem, 6.2vw, 6rem); max-width: 13ch; }
.back-link { display: inline-flex; margin-top: 1rem; color: var(--violet); font-weight: 850; }
.article-shell { padding: 1rem 0 6rem; }
.article { max-width: 920px; }
.article-section { padding: 4rem 0; border-bottom: 1px solid var(--line); }
.article-section:last-child { border-bottom: 0; }
.section-kicker { color: var(--violet); text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; font-weight: 900; }
.article-section p, .article-section li { font-size: 1.08rem; color: #413b55; }
.article-section h2 { font-size: clamp(2.2rem, 4.5vw, 3.8rem); }
.article-section h3 { font-size: 1.55rem; margin-top: 2.6rem; }
.article-lead { font-size: 1.26rem !important; }
.article-section sup a { color: var(--violet); font-weight: 900; }
.article-stat { margin: 2rem 0; padding: 1.5rem; border-radius: var(--radius-md); background: var(--ink-2); color: white; display: flex; gap: 1.5rem; align-items: center; }
.article-stat strong { color: var(--aqua); font-size: 4.5rem; line-height: 1; letter-spacing: -.07em; }
.article-stat span { color: rgba(255,255,255,.78); max-width: 35ch; font-weight: 760; }
.evidence-map { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-md); overflow: hidden; margin-top: 2rem; }
.evidence-map div { background: white; padding: 1.25rem; display: grid; gap: .4rem; }
.evidence-map strong { color: var(--violet-deep); }
.evidence-map span { color: var(--muted); }
.article blockquote { margin: 2rem 0; padding: 1.5rem 1.7rem; background: linear-gradient(135deg, var(--violet), var(--violet-deep)); color: white; border-radius: var(--radius-md); font-size: 1.45rem; line-height: 1.35; font-weight: 850; }
.interaction-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: .7rem 1.2rem; list-style: none; padding: 0; }
.interaction-list li { position: relative; padding: .8rem .9rem .8rem 2.3rem; background: white; border: 1px solid var(--line); border-radius: 12px; }
.interaction-list li::before { content: "+"; position: absolute; left: .75rem; color: var(--violet); font-weight: 950; }
.test-list { list-style: none; padding: 0; display: grid; gap: .6rem; }
.test-list li { padding: 1rem 1.1rem; border-radius: 12px; background: white; border: 1px solid var(--line); }
.sources-section { font-size: .95rem; }
.sources-list { padding-left: 1.3rem; }
.sources-list li { margin-bottom: 1.1rem; font-size: .98rem; }
.sources-list a { color: var(--violet-deep); text-decoration: underline; text-underline-offset: 3px; }
.source-note { font-size: .94rem !important; color: var(--muted) !important; }

/* Sponsor page */
.sponsor-hero-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 4rem; align-items: center; }
.sponsor-hero h1 { max-width: 15ch; }
.sponsor-hero-card { background: var(--ink-2); color: white; border-radius: var(--radius-lg); padding: 2rem; min-height: 340px; display: flex; flex-direction: column; justify-content: space-between; box-shadow: var(--shadow); }
.sponsor-hero-card .card-kicker { color: var(--aqua); text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; font-weight: 900; }
.sponsor-hero-card strong { font-size: 6rem; line-height: .9; letter-spacing: -.08em; color: var(--aqua); }
.sponsor-hero-card p { color: rgba(255,255,255,.78); font-size: 1.1rem; }
.sponsor-hero-card a { color: white; font-weight: 850; }
.sponsor-quote { padding: 1rem 1.1rem; border-left: 4px solid var(--violet); background: var(--soft); color: var(--ink-2) !important; font-weight: 850; }
.sponsor-design-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.sponsor-design-grid article { border: 1px solid var(--line); border-radius: var(--radius-md); padding: 1.4rem; background: white; min-height: 250px; }
.sponsor-design-grid article > span { color: var(--violet); font-weight: 900; display: block; margin-bottom: 3rem; }
.sponsor-design-grid p { color: var(--muted); }
.sponsor-units-dark article { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14); }
.secondary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; align-items: stretch; }
.secondary-card, .boundary-card { background: white; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 2rem; box-shadow: var(--shadow); }
.accent-card { background: var(--ink-2); color: white; }
.accent-card .eyebrow { color: var(--aqua); }
.accent-card p { color: rgba(255,255,255,.76); }
.clean-list { padding-left: 1.2rem; }
.clean-list li { margin-bottom: .65rem; }
.check-list { list-style: none; padding: 0; }
.check-list li { position: relative; padding-left: 2rem; }
.check-list li::before { content: "+"; position: absolute; left: 0; color: var(--violet); font-weight: 950; }
.boundary-card { background: linear-gradient(145deg, #fff1ef, #ffffff); }

/* Forms */
.form-shell { padding: 2rem 0 5rem; }
.form-card { max-width: 860px; margin: 0 auto; background: white; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); overflow: hidden; }
.form-intro { padding: 1.5rem 1.7rem; background: var(--soft); border-bottom: 1px solid var(--line); }
.form-intro p { margin: .45rem 0; }
.form-section { padding: 2rem 1.7rem; }
.form-field { margin-bottom: 1.25rem; }
.form-field:last-child { margin-bottom: 0; }
.form-field label { display: block; font-weight: 820; margin-bottom: .5rem; }
.form-field input, .form-field textarea, .form-field select { width: 100%; border: 1px solid #c9c4d5; border-radius: 12px; padding: .85rem .9rem; background: white; color: var(--ink); }
.form-field input:focus, .form-field textarea:focus, .form-field select:focus { outline: 3px solid rgba(90,57,214,.16); border-color: var(--violet); }
.required { color: #b42318; }
.form-actions { padding: 0 1.7rem 2rem; display: flex; flex-wrap: wrap; gap: .8rem; }
.form-note { color: var(--muted); font-size: .92rem; }
.success-panel { display: none; margin: 0 1.7rem 1.7rem; padding: 1rem; border-radius: 12px; background: #e8f8f3; border: 1px solid #b7e5d8; }
.success-panel.show { display: block; }
.success-panel.error { background: #fff1f0; border-color: #f4b8b3; color: #7a271a; }
.website-field { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
button:disabled { cursor: wait; opacity: .72; }

@media (max-width: 1050px) {
  .site-nav { gap: .7rem; }
  .site-nav a:not(.button) { display: none; }
}
@media (max-width: 960px) {
  .hero-grid, .section-heading, .split, .founder-grid, .sponsor-intro, .research-grid, .sponsor-hero-grid, .secondary-grid { grid-template-columns: 1fr; }
  .plus-stage { max-width: 620px; width: 100%; }
  .value-grid, .founding-grid, .sponsor-units, .sponsor-design-grid { grid-template-columns: repeat(2, 1fr); }
  .mix-equation { grid-template-columns: 1fr; }
  .equation-symbol { min-height: 30px; }
  .founder-lockup { width: 180px; height: 180px; border-radius: 38px; }
}
@media (max-width: 760px) {
  .site-nav {
    position: absolute; left: 1rem; right: 1rem; top: 70px;
    display: none; flex-direction: column; align-items: stretch; padding: 1rem;
    background: white; border: 1px solid var(--line); border-radius: var(--radius-md); box-shadow: var(--shadow);
  }
  .site-nav a:not(.button) { display: block; }
  .site-nav.open { display: flex; }
  .nav-toggle { display: inline-flex; }
  .hero { padding-top: 4.4rem; }
  .section { padding: 4.5rem 0; }
  .plus-stage { min-height: 390px; }
  .plus-symbol { inset: 25px 20px 55px 20px; }
  .value-grid, .founding-grid, .join-grid, .sponsor-units, .sponsor-design-grid, .footer-grid, .evidence-map, .interaction-list { grid-template-columns: 1fr; }
  .value-card.featured { transform: none; }
  .cta-grid, .footer-bottom, .sponsor-action, .role-group-heading { flex-direction: column; align-items: flex-start; }
  .stage-card { transform: scale(.9); }
  .article-stat { align-items: flex-start; flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}