:root {
  color-scheme: light;

  --color-primary: #0067d2;
  --color-primary-hover: #0058b5;
  --color-primary-active: #004a98;
  --color-primary-soft: #eef6ff;
  --color-primary-softer: #f6faff;

  --color-text: #10233f;
  --color-text-strong: #07172f;
  --color-text-muted: #53657a;
  --color-text-subtle: #718096;
  --color-surface: #ffffff;
  --color-surface-alt: #f7f9fc;
  --color-border: #dfe7f0;
  --color-border-strong: #c9d5e3;
  --color-success: #0b8f65;
  --color-success-soft: #ecfbf5;
  --color-warning: #ae6500;
  --color-warning-soft: #fff7e8;
  --color-danger: #c43d3d;
  --color-danger-soft: #fff1f1;
  --color-focus: #ffbf47;

  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --text-xs: 1rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: clamp(1.5rem, 2vw, 2rem);
  --text-3xl: clamp(2rem, 4vw, 3.5rem);
  --text-4xl: clamp(2.5rem, 5.6vw, 4.75rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-28: 7rem;

  --radius-sm: 0.5rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgb(16 35 63 / 0.05), 0 4px 12px rgb(16 35 63 / 0.05);
  --shadow-md: 0 12px 32px rgb(16 35 63 / 0.10);
  --shadow-lg: 0 24px 64px rgb(16 35 63 / 0.14);

  --container: 90rem;
  --reading-width: 44rem;
  --header-height: 4.75rem;
  --case-nav-height: 3.5rem;

  --transition-fast: 160ms ease;
  --transition-base: 260ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--case-nav-height) + 1.25rem);
}

body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-surface);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

h1,
h2,
h3,
p,
ul,
ol,
dl,
blockquote,
figure {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--color-text-strong);
  font-weight: 750;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

h1 {
  margin-bottom: var(--space-6);
  font-size: var(--text-4xl);
}

h2 {
  margin-bottom: var(--space-5);
  font-size: var(--text-3xl);
}

h3 {
  margin-bottom: var(--space-3);
  font-size: var(--text-xl);
}

p {
  margin-bottom: var(--space-5);
}

ul,
ol {
  margin-bottom: var(--space-5);
  padding-left: 1.25rem;
}

::selection {
  color: var(--color-text-strong);
  background: #cde5ff;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 9999;
  top: 0.75rem;
  left: 0.75rem;
  transform: translateY(-160%);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  color: #fff;
  background: var(--color-primary);
  font-weight: 700;
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.skip-link:focus {
  transform: translateY(0);
}

.eyebrow {
  margin-bottom: var(--space-3);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.09em;
  line-height: 1.3;
  text-transform: uppercase;
}

.lead {
  color: var(--color-text-strong);
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  font-weight: 600;
  line-height: 1.45;
}

.site-header {
  position: sticky;
  z-index: 1000;
  top: 0;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  background: rgb(255 255 255 / 0.94);
  backdrop-filter: blur(16px);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.site-header.is-scrolled {
  border-color: var(--color-border);
  box-shadow: 0 5px 20px rgb(16 35 63 / 0.06);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 100%;
  gap: var(--space-8);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-strong);
  text-decoration: none;
}

.brand__mark {
  display: grid;
  width: 2.65rem;
  height: 2.65rem;
  place-items: center;
  border: 1px solid #bfdcff;
  border-radius: 50%;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  font-weight: 800;
  letter-spacing: -0.05em;
}

.brand__text {
  display: grid;
  line-height: 1.2;
}

.brand__text strong {
  font-size: 0.95rem;
}

.brand__text span {
  color: var(--color-text-muted);
  font-size: 0.73rem;
}

.primary-navigation {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.primary-navigation a {
  position: relative;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 650;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.primary-navigation a::after {
  position: absolute;
  right: 0;
  bottom: -0.45rem;
  left: 0;
  height: 2px;
  transform: scaleX(0);
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  content: "";
  transform-origin: right;
  transition: transform var(--transition-fast);
}

.primary-navigation a:hover,
.primary-navigation a:focus-visible {
  color: var(--color-text-strong);
}

.primary-navigation a:hover::after,
.primary-navigation a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-strong);
  background: var(--color-surface);
  cursor: pointer;
}

.menu-toggle__label {
  font-size: var(--text-sm);
  font-weight: 700;
}

.case-hero {
  overflow: hidden;
  padding: clamp(3.5rem, 8vw, 4rem) 0 clamp(3rem, 6vw, 5rem);
  background: var(--color-primary-soft);
}

.m-0{
   margin:0;
}

.case-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(0, 1.18fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
}

.case-hero__summary {
  max-width: 41rem;
  color: var(--color-text-muted);
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
}

.case-hero__facts {
  display: grid;
  gap: 0.7rem;
  margin: var(--space-8) 0;
  padding: 0;
  list-style: none;
}

.case-hero__facts li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  font-weight: 600;
}

.case-hero__facts i {
  width: 1.25rem;
  color: var(--color-primary);
  text-align: center;
}

.case-hero__note {
  max-width: 38rem;
  margin-bottom: 0;
  padding-top: var(--space-5);
  border-top: 1px solid #ccdef1;
  color: var(--color-text-subtle);
  font-size: var(--text-sm);
}

.case-hero__visual {
  margin-bottom: 0;
}

.screen-frame {
  overflow: hidden;
  padding: 0.7rem;
  border: 1px solid #c8d6e7;
  border-radius: var(--radius-lg);
  background: #14243a;
  box-shadow: var(--shadow-lg);
}

.screen-frame img {
  width: 100%;
  border-radius: calc(var(--radius-lg) - 0.5rem);
  background: var(--color-surface);
}

.case-hero__visual figcaption,
.media-card figcaption,
.decision-card__visual figcaption {
  margin-top: var(--space-3);
  color: var(--color-text-subtle);
  font-size: var(--text-xs);
  line-height: 1.5;
}

.case-nav {
  position: sticky;
  z-index: 900;
  top: var(--header-height);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: rgb(255 255 255 / 0.95);
  backdrop-filter: blur(16px);
}

.case-nav__inner {
  display: flex;
  min-height: var(--case-nav-height);
  align-items: center;
  gap: var(--space-8);
  overflow-x: auto;
  scrollbar-width: none;
}

.case-nav__inner::-webkit-scrollbar {
  display: none;
}

.case-nav a {
  position: relative;
  display: inline-flex;
  min-height: var(--case-nav-height);
  flex: 0 0 auto;
  align-items: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 700;
  text-decoration: none;
}

.case-nav a::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  transform: scaleX(0);
  border-radius: var(--radius-pill) var(--radius-pill) 0 0;
  background: var(--color-primary);
  content: "";
  transition: transform var(--transition-fast);
}

.case-nav a:hover,
.case-nav a.is-active {
  color: var(--color-primary);
}

.case-nav a.is-active::after {
  transform: scaleX(1);
}

.section {
  padding: clamp(5rem, 9vw, 8rem) 0;
}

.section--compact {
  padding-top: clamp(4rem, 7vw, 6rem);
  padding-bottom: clamp(4rem, 7vw, 6rem);
}

.section--alt {
  background: var(--color-surface-alt);
}

.section-heading {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: var(--space-5);
  max-width: 90rem;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.section-heading__number {
  display: inline-grid;
  min-width: 2.8rem;
  height: 2.8rem;
  place-items: center;
  border-radius: var(--radius-pill);
  color: var(--color-primary);
  background: var(--color-primary-soft);
  font-size: var(--text-sm);
  font-weight: 850;
}

.section-heading h2 {
  margin-bottom: 0;
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
  border-top: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
}

.fact-card {
  min-width: 0;
  padding: var(--space-6);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.fact-card dt {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 800;
}

.fact-card dd {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.split-layout {
  display: grid;
  align-items: start;
  gap: clamp(2rem, 5vw, 4.5rem);
}

.split-layout--wide-media {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

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

.prose {
  max-width: var(--reading-width);
}

.prose > :last-child {
  margin-bottom: 0;
}

.quote-card {
  position: relative;
  margin: var(--space-8) 0;
  padding: var(--space-6) var(--space-6) var(--space-6) 4.5rem;
  border: 1px solid #cfe4fb;
  border-radius: var(--radius-lg);
  background: var(--color-primary-soft);
}

.quote-card > i {
  position: absolute;
  top: var(--space-6);
  left: var(--space-6);
  color: var(--color-primary);
  font-size: 1.45rem;
}

.quote-card p {
  margin-bottom: var(--space-3);
  color: var(--color-text-strong);
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1.4;
}

.quote-card > span {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-style: normal;
}

.challenge-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-4);
  padding: var(--space-6);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.challenge-card > i {
  margin-top: 0.25rem;
  color: var(--color-primary);
  font-size: 1.2rem;
}

.challenge-card h3,
.challenge-card p {
  margin-bottom: 0;
}

.challenge-card h3 {
  margin-bottom: var(--space-2);
}

.media-card {
  margin: 0;
}

.media-card img,
.decision-card__visual img {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.insight-callout {
  min-height: 100%;
  padding: clamp(1.75rem, 4vw, 2rem);
  border: 1px solid #cfe4fb;
  border-radius: var(--radius-xl);
  background: var(--color-primary-soft);
}

.insight-callout__icon {
  display: grid;
  width: 3rem;
  height: 3rem;
  margin-bottom: var(--space-6);
  place-items: center;
  border-radius: var(--radius-md);
  color: var(--color-primary);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.insight-callout h3 {
  max-width: 30rem;
  margin-bottom: 0;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-12);
}

.evidence-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.evidence-card__icon {
  display: grid;
  width: 2.7rem;
  height: 2.7rem;
  margin-bottom: var(--space-5);
  place-items: center;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.evidence-card h3 {
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.evidence-card p:not(.eyebrow) {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.evidence-card__arrow {
  margin: auto 0 var(--space-5);
  padding-top: var(--space-2);
  color: var(--color-primary);
}

.evidence-card__response {
  margin-bottom: 0;
  color: var(--color-text-strong) !important;
  font-weight: 700;
}

.decision-stack {
  display: grid;
  gap: var(--space-8);
}

.decision-card {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.decision-card--reverse .decision-card__content {
  order: 2;
}

.decision-card--reverse .decision-card__visual {
  order: 1;
}

.decision-card__content {
  padding: clamp(2rem, 5vw, 4rem);
}

.decision-card__number {
  display: inline-grid;
  min-width: 2.75rem;
  height: 2.75rem;
  margin-bottom: var(--space-6);
  place-items: center;
  border-radius: var(--radius-pill);
  color: #fff;
  background: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 850;
}

.decision-card__content > p:not(.eyebrow) {
  color: var(--color-text-muted);
}

.decision-card__visual {
  display: flex;
  margin: 0;
  padding: clamp(1.5rem, 4vw, 3rem);
  flex-direction: column;
  justify-content: center;
  background: var(--color-primary-softer);
}

.check-list {
  display: grid;
  gap: 0.65rem;
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  display: grid;
  grid-template-columns: 1.25rem minmax(0, 1fr);
  gap: var(--space-2);
  color: var(--color-text);
  font-size: 0.95rem;
}

.check-list i {
  margin-top: 0.35rem;
  color: var(--color-success);
}

.reflection-note {
  margin-top: var(--space-6);
  padding: var(--space-5);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-primary-soft);
}

.reflection-note strong {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--color-text-strong);
}

.reflection-note p {
  margin-bottom: 0;
  font-size: var(--text-sm);
}

.guardrail-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding: var(--space-5);
  border: 1px solid #f2d6d6;
  border-radius: var(--radius-md);
  background: var(--color-danger-soft);
}

.guardrail-card i {
  margin-top: 0.25rem;
  color: var(--color-danger);
}

.guardrail-card p {
  margin: 0;
  color: var(--color-text);
}

.delivery-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.delivery-flow li {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: center;
  padding: var(--space-5) var(--space-3);
  text-align: center;
}

.delivery-flow li:not(:last-child)::after {
  position: absolute;
  top: 2.15rem;
  right: -0.65rem;
  color: var(--color-border-strong);
  content: "→";
  font-weight: 800;
}

.delivery-flow li > span {
  display: grid;
  width: 3rem;
  height: 3rem;
  margin-bottom: var(--space-3);
  place-items: center;
  border: 1px solid #cfe4fb;
  border-radius: var(--radius-md);
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.delivery-flow strong {
  color: var(--color-text-strong);
  font-size: var(--text-sm);
}

.delivery-flow small {
  margin-top: var(--space-1);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  line-height: 1.4;
}

.delivery-flow .is-pending > span {
  border-style: dashed;
  color: var(--color-text-subtle);
  background: var(--color-surface-alt);
}

.outcome-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-16);
}

.outcome-card {
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.outcome-card__icon {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  margin-bottom: var(--space-5);
  place-items: center;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.outcome-card--success .outcome-card__icon {
  color: var(--color-success);
  background: var(--color-success-soft);
}

.outcome-card--boundary .outcome-card__icon {
  color: var(--color-danger);
  background: var(--color-danger-soft);
}

.outcome-card h3 {
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.outcome-card ul {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding-left: 1.1rem;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.learning-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-5);
}

.learning-card {
  padding: var(--space-6);
  border-top: 3px solid var(--color-primary);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.learning-card > span {
  display: inline-flex;
  margin-bottom: var(--space-5);
  color: var(--color-primary);
  font-size: 1.35rem;
}

.learning-card h3 {
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.learning-card p {
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.validation-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2rem, 5vw, 4rem);
  margin-top: var(--space-12);
  padding: clamp(2rem, 5vw, 3.5rem);
  border-radius: var(--radius-xl);
  color: #fff;
  background: var(--color-text-strong);
}

.validation-panel .eyebrow {
  color: #79b8ff;
}

.validation-panel h3 {
  margin-bottom: 0;
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2.15rem);
}

.validation-list {
  display: grid;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.validation-list li {
  display: grid;
  grid-template-columns: 1.25rem minmax(0, 1fr);
  gap: var(--space-3);
  color: #dfe9f5;
}

.validation-list i {
  margin-top: 0.35rem;
  color: #79b8ff;
}

.project-navigation {
  padding: var(--space-12) 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.project-navigation__inner {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: var(--space-5);
}

.project-navigation__link {
  display: flex;
  max-width: 28rem;
  flex: 1;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.project-navigation__link:hover {
  transform: translateY(-2px);
  border-color: #a9cdf5;
  box-shadow: var(--shadow-sm);
}

.project-navigation__link--next {
  justify-content: flex-end;
  text-align: right;
}

.project-navigation__link span {
  display: grid;
}

.project-navigation__link small {
  color: var(--color-text-muted);
}

.project-navigation__link strong {
  color: var(--color-text-strong);
}

.project-navigation__link > i {
  color: var(--color-primary);
}

.site-footer {
  padding: var(--space-16) 0;
  color: #dce7f4;
  background: var(--color-text-strong);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr auto;
  align-items: end;
  gap: var(--space-12);
}

.brand--footer {
  color: #fff;
}

.brand--footer .brand__mark {
  border-color: rgb(255 255 255 / 0.22);
  color: #fff;
  background: rgb(255 255 255 / 0.08);
}

.brand--footer .brand__text span {
  color: #b7c6d8;
}

.site-footer__inner > div:first-child > p {
  max-width: 28rem;
  margin: var(--space-4) 0 0;
  color: #afc0d2;
  font-size: var(--text-sm);
}

.site-footer__contact {
  display: grid;
  gap: var(--space-2);
}

.site-footer__contact .eyebrow {
  margin-bottom: var(--space-2);
  color: #79b8ff;
}

.site-footer__contact a {
  color: #dce7f4;
  text-decoration: none;
}

.site-footer__contact a:hover {
  color: #fff;
  text-decoration: underline;
}

.site-footer__contact i {
  width: 1.35rem;
  color: #79b8ff;
}

.site-footer__copyright {
  margin: 0;
  color: #8fa3b9;
  font-size: var(--text-xs);
  white-space: nowrap;
}

.back-to-top {
  position: fixed;
  z-index: 850;
  right: 1.25rem;
  bottom: 1.25rem;
  display: grid;
  width: 2.9rem;
  height: 2.9rem;
  transform: translateY(1rem);
  place-items: center;
  border: 0;
  border-radius: 50%;
  opacity: 0;
  color: #fff;
  background: var(--color-primary);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast), background var(--transition-fast);
}

.back-to-top:hover {
  background: var(--color-primary-hover);
}

.back-to-top.is-visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.reveal {
  transform: none;
  opacity: 1;
}

.js-reveal-ready .reveal {
  transform: translateY(18px);
  opacity: 0;
  transition: opacity 550ms ease, transform 550ms ease;
}

.js-reveal-ready .reveal.is-visible {
  transform: translateY(0);
  opacity: 1;
}

@media (max-width: 68rem) {
  .case-hero__grid,
  .split-layout--wide-media,
  .split-layout--balanced,
  .validation-panel {
    grid-template-columns: 1fr;
  }

  .case-hero__content {
    max-width: 50rem;
  }

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

  .decision-card,
  .decision-card--reverse {
    grid-template-columns: 1fr;
  }

  .decision-card--reverse .decision-card__content,
  .decision-card--reverse .decision-card__visual {
    order: initial;
  }

  .outcome-grid {
    grid-template-columns: 1fr;
  }

  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__copyright {
    grid-column: 1 / -1;
  }
}

@media (max-width: 50rem) {
  :root {
    --header-height: 4.25rem;
  }

  .container {
    width: min(100% - 1.5rem, var(--container));
  }

  .site-header {
    height: auto;
    min-height: var(--header-height);
  }

  .site-header__inner {
    flex-wrap: wrap;
    padding-block: 0.5rem;
  }

  .menu-toggle {
    display: none;
  }

  .primary-navigation {
    display: flex;
    flex: 1 0 100%;
    flex-wrap: wrap;
    gap: var(--space-5);
    padding-bottom: 0.5rem;
  }

  .primary-navigation a {
    display: inline-flex;
    min-height: 2.75rem;
    align-items: center;
  }

  .primary-navigation a::after {
    display: none;
  }

  .js-nav-ready .site-header {
    height: var(--header-height);
    min-height: 0;
  }

  .js-nav-ready .site-header__inner {
    flex-wrap: nowrap;
    padding-block: 0;
  }

  .js-nav-ready .menu-toggle {
    display: inline-flex;
  }

  .js-nav-ready .primary-navigation {
    position: fixed;
    z-index: 1100;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: grid;
    gap: 0;
    transform: translateY(-120%);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 0;
    opacity: 0;
    background: var(--color-surface);
    box-shadow: var(--shadow-md);
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
  }

  .js-nav-ready .primary-navigation.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .js-nav-ready .primary-navigation a {
    display: flex;
    min-height: 3.5rem;
    align-items: center;
    padding: 0 1.25rem;
    border-top: 1px solid var(--color-border);
  }

  .case-nav__inner {
    gap: var(--space-6);
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .section-heading__number {
    min-width: 2.5rem;
    width: 2.5rem;
    height: 2.5rem;
  }

  .fact-grid,
  .evidence-grid,
  .learning-grid {
    grid-template-columns: 1fr;
  }

  .fact-card {
    padding: var(--space-5);
  }

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

  .delivery-flow li:nth-child(2)::after {
    display: none;
  }

  .project-navigation__inner {
    flex-direction: column;
  }

  .project-navigation__link {
    max-width: none;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .site-footer__copyright {
    grid-column: auto;
  }
}

@media (max-width: 35rem) {
  .brand__text {
    display: none;
  }

  .case-hero {
    padding-top: var(--space-16);
  }

  .case-hero__facts li {
    align-items: flex-start;
  }

  .quote-card {
    padding: 4.25rem var(--space-5) var(--space-5);
  }

  .quote-card > i {
    top: var(--space-5);
    left: var(--space-5);
  }

  .decision-card__content,
  .decision-card__visual {
    padding: var(--space-5);
  }

  .delivery-flow {
    grid-template-columns: 1fr;
  }

  .delivery-flow li:not(:last-child)::after {
    top: auto;
    right: 50%;
    bottom: -0.4rem;
    transform: rotate(90deg) translateY(-50%);
  }

  .project-navigation__link--next {
    justify-content: flex-start;
    text-align: left;
  }

  .project-navigation__link--next span {
    order: 2;
  }

  .project-navigation__link--next i {
    order: 1;
    transform: rotate(180deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    /*scroll-behavior: auto !important;*/
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    transform: none;
    opacity: 1;
  }
}

@media print {
  .site-header,
  .case-nav,
  .back-to-top,
  .project-navigation,
  .site-footer {
    display: none !important;
  }

  .case-hero,
  .section,
  .section--alt {
    padding: 2rem 0;
    background: #fff !important;
  }

  .reveal {
    transform: none !important;
    opacity: 1 !important;
  }

  .decision-card,
  .fact-card,
  .evidence-card,
  .outcome-card,
  .learning-card {
    break-inside: avoid;
    box-shadow: none;
  }
}