@media (max-width: 1120px) {
  :root {
    --shell: min(100%, calc(100% - 64px));
  }

  .hero-grid,
  .how-layout,
  .faq-layout {
    gap: var(--space-500);
  }

  .hero {
    padding-block: var(--space-700) var(--space-800);
  }

  .hero-grid {
    min-height: 0;
  }

  .hero-copy {
    align-self: auto;
    padding-block: 0;
  }

  .hero-visual {
    position: relative;
    inset: auto;
    width: auto;
    max-width: none;
    pointer-events: auto;
  }

  .hero-collage {
    height: auto;
  }

  .hero-collage picture,
  .hero-collage img {
    height: auto;
  }

  .hero-collage img {
    aspect-ratio: 1672 / 941;
    object-fit: contain;
    object-position: center;
    border-radius: 40px 40px 40px 12px;
    box-shadow: var(--shadow-soft);
    mix-blend-mode: normal;
    opacity: 1;
    -webkit-mask-image: none;
    mask-image: none;
  }

  .collage-stamp {
    top: -24px;
    left: 39%;
  }

  .collage-arrow {
    top: -18px;
  }

  .trust-item {
    padding-inline: var(--space-200);
  }

  .trust-item:first-child {
    padding-left: 0;
  }

  .trust-item:last-child {
    padding-right: 0;
  }

  .benefits-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .audience-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .audience-card:nth-child(4),
  .audience-card:nth-child(5) {
    margin-top: var(--space-200);
  }

  .first-100-cards {
    grid-template-columns: minmax(0, 1fr) 28px minmax(0, 1fr) 28px minmax(0, 1fr);
  }
}

@media (max-width: 820px) {
  :root {
    --shell: min(100%, calc(100% - 48px));
    --section-space: 96px;
  }

  h1 {
    font-size: 60px;
  }

  h2 {
    font-size: 40px;
  }

  .header-inner {
    min-height: 72px;
  }

  .brand-logo {
    width: 128px;
  }

  .menu-toggle {
    position: relative;
    z-index: 61;
    display: block;
  }

  .site-nav {
    position: fixed;
    z-index: 60;
    inset: 0;
    display: flex;
    min-height: 100svh;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-300);
    padding: var(--space-800) max(24px, calc((100vw - 720px) / 2));
    color: var(--ink);
    background: rgba(255, 250, 242, 0.98);
    font-family: var(--font-display);
    font-size: 36px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-16px);
    transition: opacity 700ms var(--ease-spring), transform 700ms var(--ease-spring);
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav > a:not(.button) {
    transform: translateY(20px);
    transition: transform 700ms var(--ease-spring), color 700ms var(--ease-spring);
  }

  .site-nav.is-open > a:not(.button) {
    transform: translateY(0);
  }

  .site-nav > a:nth-child(1) { transition-delay: 80ms; }
  .site-nav > a:nth-child(2) { transition-delay: 130ms; }
  .site-nav > a:nth-child(3) { transition-delay: 180ms; }
  .site-nav > a:nth-child(4) { transition-delay: 230ms; }
  .site-nav > a:nth-child(5) { transition-delay: 280ms; }
  .site-nav > a:nth-child(6) { transition-delay: 330ms; }

  .site-nav .button {
    margin-top: var(--space-200);
    font-family: var(--font-body);
    font-size: 16px;
  }

  .hero {
    padding-block: var(--space-600) var(--space-700);
  }

  .hero-grid,
  .how-layout,
  .faq-layout {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    display: none;
  }

  .hero-copy {
    padding-block: 0;
  }

  .hero-visual {
    max-width: 720px;
    margin-inline: auto;
  }

  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .trust-item:nth-child(2) {
    border-right: 0;
  }

  .trust-item:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line-light);
  }

  .audience-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .audience-card:nth-child(4),
  .audience-card:nth-child(5) {
    margin-top: 0;
  }

  .audience-card:last-child {
    grid-column: 1 / -1;
  }

  .first-100-heading h2,
  .final-cta h2 {
    font-size: 48px;
  }

  .first-100-cards {
    grid-template-columns: minmax(0, 1fr) 28px minmax(0, 1fr) 28px minmax(0, 1fr);
  }

  .cohort-card {
    min-height: 300px;
    padding: var(--space-300);
  }

  .cohort-card strong {
    font-size: 60px;
  }

  .final-cta-inner {
    align-items: flex-start;
  }
}

@media (max-width: 600px) {
  :root {
    --shell: calc(100% - 40px);
    --section-space: 80px;
  }

  h1 {
    font-size: 48px;
    line-height: 1.06;
  }

  h2,
  .first-100-heading h2,
  .final-cta h2 {
    font-size: 36px;
    line-height: 1.1;
  }

  h3 {
    line-height: 1.24;
  }

  .header-inner {
    min-height: 68px;
  }

  .brand-logo {
    width: 116px;
  }

  .site-nav {
    font-size: 30px;
  }

  .hero {
    padding-block: var(--space-500) var(--space-600);
  }

  .hero-lead {
    margin-top: var(--space-200);
    font-size: 18px;
  }

  .member-counts {
    grid-template-columns: minmax(0, 1fr) 24px minmax(0, 1fr);
    gap: 6px;
    margin-block: var(--space-300);
  }

  .member-count {
    min-height: 100px;
    padding-inline: 8px;
  }

  .member-count strong {
    font-size: 40px;
  }

  .member-count span {
    font-size: 12px;
  }

  .member-count-total {
    grid-column: 1 / -1;
  }

  .member-symbol:nth-of-type(2) {
    display: none;
  }

  .button-row {
    align-items: stretch;
    flex-direction: column;
    gap: var(--space-200);
  }

  .button-primary {
    width: 100%;
  }

  .hero-collage img {
    height: 220px;
    border-radius: 24px 24px 24px 8px;
    object-fit: contain;
    background: var(--sand);
  }

  .collage-stamp {
    top: -18px;
    left: 36%;
    width: 96px;
    height: 96px;
    padding: 0;
  }

  .collage-stamp svg {
    width: 100%;
    height: 100%;
    margin: 0;
  }

  .collage-arrow {
    top: -12px;
    right: 5%;
    font-size: 36px;
  }

  .trust-grid,
  .benefits-grid,
  .audience-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .trust-item,
  .trust-item:first-child,
  .trust-item:last-child {
    min-height: 96px;
    padding-inline: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line-light);
  }

  .trust-item:last-child {
    border-bottom: 0;
  }

  .section-heading > p:last-child,
  .how-intro > p:last-child,
  .faq-intro > p:last-child {
    font-size: 16px;
  }

  .benefits-grid,
  .audience-grid,
  .process-grid {
    margin-top: var(--space-500);
  }

  .benefit-card {
    min-height: 0;
    padding: var(--space-300);
  }

  .audience-card {
    min-height: 0;
  }

  .audience-card:last-child {
    grid-column: auto;
  }

  .process-card {
    min-height: 0;
    padding: var(--space-300);
  }

  .collaboration-callout {
    grid-template-columns: 1fr;
    gap: var(--space-300);
    padding: var(--space-300);
  }

  .callout-icon {
    width: 60px;
    height: 60px;
  }

  .collaboration-callout h3 {
    font-size: 24px;
  }

  .first-100-cards {
    display: flex;
    flex-direction: column;
    gap: var(--space-200);
  }

  .cohort-card {
    min-height: 0;
    padding: var(--space-400) var(--space-300);
  }

  .cohort-card strong {
    font-size: 60px;
  }

  .cohort-plus,
  .cohort-equals {
    min-height: 24px;
    font-size: 32px;
    transform: rotate(0);
  }

  .faq-item summary {
    min-height: 64px;
    font-size: 18px;
  }

  .faq-item p {
    margin-right: 0;
    font-size: 15px;
  }

  .final-cta-inner {
    display: grid;
    gap: var(--space-400);
    padding-block: var(--space-700);
  }

  .final-cta .button {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-500);
    padding-block: var(--space-600) var(--space-500);
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav > a:not(.button) {
    transform: none;
  }
}

/* Fluid viewport tuning keeps intermediate widths composed between breakpoints. */
:root {
  --shell: min(1440px, calc(100% - clamp(40px, 5vw, 80px)));
  --section-space: clamp(80px, 7vw, 112px);
  --space-200: clamp(14px, 1.2vw, 16px);
  --space-300: clamp(20px, 1.8vw, 24px);
  --space-400: clamp(28px, 2.4vw, 32px);
  --space-500: clamp(34px, 3.2vw, 40px);
  --space-600: clamp(40px, 3.8vw, 48px);
  --space-700: clamp(52px, 5.2vw, 64px);
  --space-800: clamp(64px, 6.5vw, 80px);
  --space-900: clamp(76px, 7.8vw, 96px);
}

h1 {
  font-size: clamp(40px, calc(4vw + 24px), 72px);
}

h2 {
  font-size: clamp(36px, calc(2vw + 18px), 48px);
}

h3 {
  font-size: clamp(18px, calc(0.8vw + 8px), 20px);
}

.header-inner {
  min-height: clamp(68px, calc(4vw + 40px), 80px);
  gap: clamp(24px, 3vw, 32px);
}

.brand-logo {
  width: clamp(116px, 8vw, 144px);
}

.site-nav {
  gap: clamp(16px, 2vw, 24px);
}

.button {
  min-height: clamp(44px, 3.3vw, 48px);
  padding-inline: clamp(14px, 1.4vw, 16px);
  font-size: clamp(15px, calc(0.3vw + 11px), 16px);
}

.section-heading h2,
.first-100-heading h2,
.final-cta h2 {
  text-wrap: balance;
}

.section-heading h2 {
  font-size: clamp(36px, calc(2vw + 18px), 48px);
}

.section-heading > p:last-child,
.how-intro > p:last-child,
.faq-intro > p:last-child,
.final-cta-inner > div > p:not(.eyebrow) {
  font-size: clamp(16px, calc(0.6vw + 10px), 18px);
}

.hero-grid {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 64px);
}

.hero-copy h1 {
  max-width: min(720px, 100%);
  font-size: clamp(48px, calc(3.5vw + 20px), 72px);
}

.hero-lead {
  max-width: min(620px, 100%);
  font-size: clamp(18px, calc(0.5vw + 13px), 20px);
}

.member-counts {
  max-width: min(720px, 100%);
  gap: clamp(6px, 0.8vw, 12px);
}

.member-count {
  min-height: clamp(100px, 8vw, 128px);
  padding: clamp(14px, 1.5vw, 16px);
}

.member-count strong {
  font-size: clamp(40px, 3.6vw, 56px);
}

.member-count span {
  font-size: clamp(12px, calc(0.25vw + 9px), 14px);
}

.member-symbol {
  font-size: clamp(24px, 2vw, 30px);
}

.hero-note {
  font-size: clamp(13px, calc(0.3vw + 9px), 14px);
}

.trust-grid,
.benefits-grid,
.audience-grid,
.process-grid {
  gap: clamp(var(--space-100), 1.6vw, var(--space-200));
}

.trust-item {
  min-height: clamp(96px, 8vw, 116px);
  gap: clamp(var(--space-100), 1.4vw, var(--space-200));
  padding: clamp(var(--space-200), 2.4vw, var(--space-300)) clamp(var(--space-200), 2.8vw, var(--space-400));
}

.trust-item svg {
  width: clamp(36px, 3.2vw, 44px);
  height: clamp(36px, 3.2vw, 44px);
  flex-basis: clamp(36px, 3.2vw, 44px);
}

.benefits-grid,
.audience-grid,
.process-grid {
  margin-top: clamp(var(--space-500), 4.5vw, var(--space-600));
}

.benefit-card {
  min-height: clamp(216px, 18vw, 248px);
  padding: clamp(var(--space-300), 2.4vw, var(--space-400)) clamp(var(--space-200), 2vw, var(--space-300));
  border-radius: clamp(12px, 1.2vw, 16px);
}

.benefit-icon {
  width: clamp(48px, 3.6vw, 52px);
  height: clamp(48px, 3.6vw, 52px);
}

.benefit-card h3 {
  font-size: clamp(18px, calc(0.5vw + 13px), 20px);
}

.benefit-card p {
  font-size: clamp(15px, calc(0.3vw + 12px), 16px);
}

.audience-card {
  min-height: clamp(200px, 16vw, 232px);
  padding: clamp(var(--space-200), 2vw, var(--space-300));
  border-radius: clamp(12px, 1.2vw, 16px);
}

.audience-icon {
  width: clamp(52px, 3.8vw, 56px);
  height: clamp(52px, 3.8vw, 56px);
}

.audience-card h3 {
  font-size: clamp(17px, calc(0.35vw + 13px), 18px);
}

.how-layout,
.faq-layout {
  gap: clamp(var(--space-500), 5vw, var(--space-700));
}

.process-card {
  min-height: clamp(216px, 17vw, 240px);
  padding: clamp(var(--space-300), 2.4vw, var(--space-400));
  border-radius: clamp(12px, 1.2vw, 16px);
}

.process-card p {
  font-size: clamp(15px, calc(0.3vw + 12px), 16px);
}

.collaboration-callout {
  gap: clamp(var(--space-300), 2.8vw, var(--space-400));
  margin-top: clamp(var(--space-500), 4.5vw, var(--space-600));
  padding: clamp(var(--space-400), 3.5vw, var(--space-500));
  border-radius: clamp(12px, 1.2vw, 16px);
}

.callout-icon {
  width: clamp(60px, 5vw, 72px);
  height: clamp(60px, 5vw, 72px);
}

.collaboration-callout h3 {
  font-size: clamp(24px, calc(1vw + 16px), 30px);
}

.first-100-heading h2,
.final-cta h2 {
  font-size: clamp(36px, 4vw, 60px);
}

.first-100-heading > p:last-child {
  font-size: clamp(16px, calc(0.6vw + 10px), 18px);
}

.first-100-cards {
  gap: clamp(var(--space-100), 1.6vw, var(--space-200));
  margin-top: clamp(var(--space-500), 4.5vw, var(--space-600));
}

.cohort-card {
  min-height: clamp(280px, 23vw, 320px);
  padding: clamp(var(--space-300), 2.4vw, var(--space-400));
  border-radius: clamp(12px, 1.2vw, 16px);
}

.cohort-card strong {
  font-size: clamp(60px, 5vw, 72px);
}

.cohort-card h3 {
  font-size: clamp(20px, calc(0.7vw + 13px), 24px);
}

.cohort-card p {
  font-size: clamp(15px, calc(0.3vw + 12px), 16px);
}

.cohort-plus,
.cohort-equals {
  font-size: clamp(36px, 3.2vw, 48px);
}

.faq-item summary {
  min-height: clamp(64px, 5vw, 72px);
  font-size: clamp(18px, calc(0.35vw + 15px), 20px);
}

.faq-item p {
  font-size: clamp(15px, calc(0.3vw + 12px), 16px);
}

.final-cta-inner {
  gap: clamp(var(--space-500), 5vw, var(--space-700));
  padding-block: clamp(var(--space-700), 7vw, var(--space-800));
}

.final-cta small,
.footer-brand p,
.footer-links a {
  font-size: clamp(13px, calc(0.2vw + 10px), 14px);
}

.footer-grid {
  gap: clamp(var(--space-400), 4vw, var(--space-600));
  padding-block: clamp(var(--space-600), 5.5vw, var(--space-700)) clamp(var(--space-500), 4.5vw, var(--space-600));
}

@media (min-width: 821px) {
  .site-nav {
    font-size: clamp(13px, calc(0.3vw + 9px), 14px);
  }
}

@media (min-width: 1121px) {
  .hero-grid {
    min-height: clamp(560px, 56.25vw, 900px);
  }

  .hero-copy {
    padding-block: clamp(var(--space-500), 4vw, var(--space-600));
  }
}

@media (max-width: 1120px) {
  .hero-copy {
    padding-block: 0;
  }
}

@media (max-width: 820px) {
  .site-nav {
    font-size: clamp(30px, 6vw, 36px);
  }

  .header-inner {
    min-height: clamp(72px, 18vw, 84px);
  }

  .brand-logo {
    width: clamp(120px, 34vw, 150px);
  }

  .menu-toggle {
    width: 48px;
    height: 48px;
  }

  .menu-toggle span {
    width: 20px;
    margin-left: 14px;
  }

  .hero {
    padding-block: clamp(32px, 9vw, 56px) clamp(32px, 10vw, 48px);
  }

  .hero-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .hero-copy {
    display: contents;
    padding-block: 0;
  }

  .hero-copy > .eyebrow,
  .hero-copy > h1,
  .hero-copy > .hero-lead,
  .hero-copy > .member-counts,
  .hero-copy > .button-row,
  .hero-copy > .hero-note {
    position: relative;
    z-index: 2;
    width: 100%;
  }

  .hero-copy > .eyebrow {
    order: 1;
  }

  .hero-copy > h1 {
    order: 2;
  }

  .hero-copy > .hero-lead {
    order: 3;
  }

  .hero-visual {
    display: block;
    order: 4;
    width: 100vw;
    max-width: none;
    margin: clamp(-32px, -5vw, -20px) 0 0 calc(50% - 50vw);
    pointer-events: none;
  }

  .hero-collage,
  .hero-collage picture,
  .hero-collage img {
    height: auto;
  }

  .hero-collage img {
    width: 100%;
    aspect-ratio: 1672 / 941;
    object-fit: contain;
    object-position: center;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
  }

  .collage-stamp {
    top: 38%;
    left: clamp(24px, 7vw, 52px);
    width: clamp(88px, 24vw, 120px);
    height: clamp(88px, 24vw, 120px);
  }

  .collage-arrow {
    display: none;
  }

  .hero-copy > .member-counts {
    order: 5;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: none;
    gap: clamp(12px, 4vw, 24px);
    margin-block: clamp(16px, 4.5vw, 24px);
  }

  .member-count {
    min-height: clamp(112px, 30vw, 144px);
    padding: clamp(16px, 4vw, 24px) clamp(10px, 3vw, 20px);
    border-radius: clamp(12px, 3vw, 16px);
  }

  .member-count strong {
    font-size: clamp(40px, 11vw, 56px);
  }

  .member-count span {
    font-size: clamp(12px, 3.5vw, 16px);
  }

  .member-count-label-default,
  .member-count-total,
  .member-symbol:nth-of-type(2) {
    display: none;
  }

  .member-count-label-mobile {
    display: block;
  }

  .member-symbol:first-of-type {
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: 3;
    display: grid;
    width: clamp(52px, 14vw, 64px);
    height: clamp(52px, 14vw, 64px);
    place-items: center;
    margin: 0;
    color: var(--burgundy);
    background: var(--paper);
    border: 1px solid rgba(141, 26, 27, 0.28);
    border-radius: 50%;
    font-size: clamp(28px, 7vw, 36px);
    line-height: 1;
    transform: translate(-50%, -50%);
  }

  .hero-copy > .button-row {
    order: 6;
    align-items: stretch;
    flex-direction: column;
    gap: var(--space-200);
    width: 100%;
  }

  .hero-copy > .button-row .button-primary {
    width: 100%;
    min-height: 56px;
    text-transform: uppercase;
  }

  .hero-copy > .button-row .text-link {
    justify-content: center;
    width: 100%;
    min-height: 32px;
    font-size: clamp(16px, 4.5vw, 20px);
  }

  .hero-copy > .hero-note {
    display: none;
  }
}

/* Let the audience cards follow their content on narrow phones. The desktop
   auto margin keeps the five-card row aligned, but it creates an artificial
   icon-to-copy gap once the cards stack into a single column. */
@media (max-width: 600px) {
  .audience-card {
    min-height: 0;
  }

  .audience-card h3 {
    margin-top: 0;
  }
}

/* Keep the mobile value-pillar icon rail flush to one consistent left edge.
   The fluid desktop rule adds inset padding to middle rows, which is useful
   in the four-column layout but makes the stacked phone list look staggered. */
@media (max-width: 600px) {
  .trust-item,
  .trust-item:first-child,
  .trust-item:last-child {
    padding-inline: 0;
  }
}