/* ============================================================
   AI DONE SIMPLE — sunshine yellow + royal purple
   ============================================================ */

:root,
[data-theme='light'] {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.25rem);
  --text-3xl: clamp(2.5rem, 1.2rem + 4vw, 4.5rem);

  /* Spacing */
  --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-32: 8rem;

  /* Brand anchors */
  --brand-yellow: #f6b100;
  --brand-yellow-soft: #ffd34d;
  --brand-purple: #5b2a9e;
  --brand-purple-deep: #3d1a70;

  /* Surfaces — soft warm off-white */
  --color-bg: #faf7f2;
  --color-surface: #ffffff;
  --color-surface-2: #f4eee4;
  --color-surface-offset: #efe7d9;
  --color-divider: #e7ded0;
  --color-border: #ddd3c2;

  /* Text */
  --color-text: #201636;
  --color-text-muted: #5f5670;
  --color-text-faint: #948ba3;
  --color-text-inverse: #faf7f2;

  /* Primary = royal purple */
  --color-primary: #5b2a9e;
  --color-primary-hover: #4a1f86;
  --color-primary-active: #3d1a70;
  --color-primary-contrast: #ffffff;

  /* Accent = sunshine yellow */
  --color-accent: #f6b100;
  --color-accent-hover: #e0a000;
  --color-accent-contrast: #2a1a05;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --transition-interactive: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 3px rgba(61, 26, 112, 0.08);
  --shadow-md: 0 8px 24px rgba(61, 26, 112, 0.1);
  --shadow-lg: 0 20px 48px rgba(61, 26, 112, 0.16);
  --shadow-yellow: 0 12px 32px rgba(246, 177, 0, 0.28);

  --content-wide: 1200px;

  --font-display: 'Clash Display', 'Trebuchet MS', sans-serif;
  --font-body: 'General Sans', 'Helvetica Neue', sans-serif;
}

[data-theme='dark'] {
  --brand-yellow: #ffc21f;
  --brand-yellow-soft: #ffd968;

  --color-bg: #17111f;
  --color-surface: #1f1730;
  --color-surface-2: #241a37;
  --color-surface-offset: #2a1f40;
  --color-divider: #322747;
  --color-border: #3d3054;

  --color-text: #ece7f5;
  --color-text-muted: #a99fc0;
  --color-text-faint: #746a8c;
  --color-text-inverse: #17111f;

  --color-primary: #a983e8;
  --color-primary-hover: #bb9bf0;
  --color-primary-active: #cbb2f5;
  --color-primary-contrast: #17111f;

  --color-accent: #ffc21f;
  --color-accent-hover: #ffd050;
  --color-accent-contrast: #2a1a05;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.55);
  --shadow-yellow: 0 12px 32px rgba(255, 194, 31, 0.22);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --brand-yellow: #ffc21f;
    --color-bg: #17111f;
    --color-surface: #1f1730;
    --color-surface-2: #241a37;
    --color-surface-offset: #2a1f40;
    --color-divider: #322747;
    --color-border: #3d3054;
    --color-text: #ece7f5;
    --color-text-muted: #a99fc0;
    --color-text-faint: #746a8c;
    --color-text-inverse: #17111f;
    --color-primary: #a983e8;
    --color-primary-hover: #bb9bf0;
    --color-primary-active: #cbb2f5;
    --color-primary-contrast: #17111f;
    --color-accent: #ffc21f;
    --color-accent-hover: #ffd050;
  }
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 5vw, var(--space-16));
}

.section {
  padding-block: clamp(var(--space-16), 9vw, var(--space-32));
}
.section--alt {
  background: var(--color-surface-2);
  border-block: 1px solid var(--color-divider);
}

.eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: color-mix(in oklab, var(--color-primary) 12%, transparent);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-5);
}

.section__head {
  max-width: 46rem;
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}
.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  letter-spacing: -0.005em;
  word-spacing: 0.05em;
  color: var(--color-text);
}
.section__sub {
  margin-top: var(--space-5);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  white-space: nowrap;
  line-height: 1;
}
.btn--sm {
  padding: var(--space-2) var(--space-5);
}
.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}
.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition:
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive);
}
.header--scrolled {
  border-bottom-color: var(--color-divider);
  box-shadow: var(--shadow-sm);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: 4.5rem;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}
.logo__mark {
  color: var(--color-primary);
}
.logo__text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  letter-spacing: -0.01em;
}
.logo__accent {
  color: var(--color-primary);
}
[data-theme='dark'] .logo__accent {
  color: var(--brand-yellow);
}

.nav {
  display: flex;
  gap: clamp(var(--space-4), 2vw, var(--space-8));
}
.nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  color: var(--color-text-muted);
  position: relative;
}
.nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--brand-yellow);
  border-radius: 2px;
  transition: width var(--transition-interactive);
}
.nav a:hover,
.nav a[aria-current='page'] {
  color: var(--color-text);
}
.nav a:hover::after,
.nav a[aria-current='page']::after {
  width: 100%;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}
.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  border: 1.5px solid var(--color-border);
}
.icon-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}
.hero::before {
  content: '';
  position: absolute;
  top: -18%;
  right: -8%;
  width: 42vw;
  max-width: 620px;
  aspect-ratio: 1;
  background: radial-gradient(circle, color-mix(in oklab, var(--brand-yellow) 40%, transparent), transparent 68%);
  filter: blur(10px);
  z-index: 0;
  pointer-events: none;
}
.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(var(--space-8), 5vw, var(--space-20));
  align-items: center;
}
.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 600;
  letter-spacing: -0.01em;
  word-spacing: 0.08em;
  line-height: 1.06;
  color: var(--color-text);
}
.hl-purple {
  color: var(--color-primary);
}
[data-theme='dark'] .hl-purple {
  color: var(--color-primary-active);
}
.hl-yellow {
  position: relative;
  color: var(--color-text);
  white-space: nowrap;
}
.hl-yellow::after {
  content: '';
  position: absolute;
  left: -2%;
  right: -2%;
  bottom: 0.08em;
  height: 0.34em;
  background: var(--brand-yellow);
  border-radius: var(--radius-sm);
  z-index: -1;
  opacity: 0.85;
}
.hero__lede {
  margin-top: var(--space-6);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.55;
  max-width: 34rem;
}
.hero__cta {
  margin-top: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.hero__note {
  margin-top: var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  font-weight: 500;
}
.hero__art img {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-divider);
}

/* ---------- Trust strip ---------- */
.strip {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
}
[data-theme='dark'] .strip {
  background: var(--brand-purple-deep);
  color: #ece7f5;
}
.strip__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-6);
  padding-block: var(--space-6);
  text-align: center;
}
.strip__lead {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--brand-yellow);
}
.strip__list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  opacity: 0.92;
}
.strip__list li[aria-hidden] {
  color: var(--brand-yellow);
}

/* ---------- Problem grid ---------- */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.pcard {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-interactive),
    box-shadow var(--transition-interactive),
    border-color var(--transition-interactive);
}
.pcard:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: color-mix(in oklab, var(--color-primary) 40%, var(--color-border));
}
.pcard__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--brand-yellow);
}
.pcard h3 {
  margin-top: var(--space-4);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-text);
}
.pcard p {
  margin-top: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

/* ---------- What we do ---------- */
.what__grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(var(--space-8), 5vw, var(--space-20));
  align-items: center;
}
.what__art img {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-divider);
}
.check-list {
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.check-list li {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}
.check {
  flex-shrink: 0;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--radius-full);
  background: var(--brand-yellow);
  position: relative;
  margin-top: 2px;
}
.check::after {
  content: '';
  position: absolute;
  left: 0.55rem;
  top: 0.42rem;
  width: 0.4rem;
  height: 0.72rem;
  border: solid var(--color-accent-contrast);
  border-width: 0 2.5px 2.5px 0;
  transform: rotate(45deg);
}
.check-list strong {
  display: block;
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  margin-bottom: var(--space-1);
}
.check-list div {
  color: var(--color-text-muted);
}

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  counter-reset: step;
}
.step {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}
.step__num {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-full);
  background: color-mix(in oklab, var(--color-primary) 12%, transparent);
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  margin-bottom: var(--space-5);
}
[data-theme='dark'] .step__num {
  color: var(--color-primary-active);
}
.step h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-text);
}
.step p {
  margin-top: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

/* ---------- Who ---------- */
.who-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.wcard {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border-top: 4px solid var(--brand-yellow);
}
.wcard h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-text);
}
.wcard p {
  margin-top: var(--space-3);
  color: var(--color-text-muted);
}

/* ---------- CTA ---------- */
.cta {
  background: linear-gradient(135deg, var(--brand-purple-deep), var(--color-primary));
  color: #fff;
  padding-block: clamp(var(--space-16), 9vw, var(--space-32));
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -6%;
  width: 34vw;
  max-width: 480px;
  aspect-ratio: 1;
  background: radial-gradient(circle, color-mix(in oklab, var(--brand-yellow) 55%, transparent), transparent 66%);
  filter: blur(8px);
  pointer-events: none;
}
.cta__inner {
  position: relative;
  text-align: center;
  max-width: 44rem;
}
.cta__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-2xl);
  letter-spacing: -0.005em;
  word-spacing: 0.05em;
}
.cta__sub {
  margin: var(--space-5) auto 0;
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.55;
}
.cta__actions {
  margin-top: var(--space-10);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-5);
}
.cta .btn--primary {
  background: var(--brand-yellow);
  color: var(--color-accent-contrast);
}
.cta .btn--primary:hover {
  background: var(--brand-yellow-soft);
}
.cta__email {
  color: #fff;
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--brand-yellow);
}
.cta__email:hover {
  color: var(--brand-yellow);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-surface-2);
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-12);
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-8);
  align-items: flex-end;
}
.footer__brand .logo__text {
  font-size: var(--text-lg);
}
.footer__brand p {
  margin-top: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: 40ch;
}
.footer__meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  align-items: flex-end;
  font-size: var(--text-sm);
  color: var(--color-text-faint);
}
.footer__meta a {
  color: var(--color-text-muted);
  text-decoration: none;
}
.footer__meta a:hover {
  color: var(--color-primary);
}

/* ---------- Featured case study teaser ---------- */
.feature-case {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(var(--space-8), 4vw, var(--space-16));
  align-items: center;
  text-decoration: none;
  color: inherit;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-8), 4vw, var(--space-16));
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-interactive),
    box-shadow var(--transition-interactive),
    border-color var(--transition-interactive);
}
.feature-case:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: color-mix(in oklab, var(--color-primary) 45%, var(--color-border));
}
.feature-case__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: color-mix(in oklab, var(--color-primary) 12%, transparent);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-5);
}
[data-theme='dark'] .feature-case__tag {
  color: var(--color-primary-active);
}
.feature-case__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-xl);
  color: var(--color-text);
  letter-spacing: -0.01em;
}
.feature-case__lede {
  margin-top: var(--space-4);
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.55;
}
.feature-case__points {
  margin-top: var(--space-6);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3) var(--space-5);
}
.feature-case__points li {
  position: relative;
  padding-left: var(--space-5);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}
.feature-case__points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 0.6rem;
  height: 0.6rem;
  border-radius: var(--radius-full);
  background: var(--brand-yellow);
}
.feature-case__link {
  display: inline-block;
  margin-top: var(--space-8);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-primary);
}
[data-theme='dark'] .feature-case__link {
  color: var(--color-primary-active);
}
.feature-case:hover .feature-case__link {
  text-decoration: underline;
  text-underline-offset: 5px;
}

/* Layered stack visual */
.feature-case__art {
  display: grid;
  place-items: center;
}
.stack-viz {
  width: 100%;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.stack-viz__tier {
  display: grid;
  place-items: center;
  text-align: center;
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1.35;
}
.stack-viz__tier--top {
  background: linear-gradient(135deg, var(--brand-purple-deep), var(--color-primary));
  color: #fff;
  width: 62%;
  margin-inline: auto;
}
.stack-viz__tier--mid {
  background: var(--brand-yellow);
  color: var(--color-accent-contrast);
  width: 82%;
  margin-inline: auto;
}
.stack-viz__tier--base {
  background: color-mix(in oklab, var(--color-primary) 14%, var(--color-surface));
  color: var(--color-text);
  border: 1px solid var(--color-border);
  width: 100%;
}

/* ============================================================
   CASE STUDY PAGE
   ============================================================ */
.cs-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  background: linear-gradient(135deg, var(--brand-purple-deep), var(--color-primary));
  color: #fff;
}
.cs-hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -6%;
  width: 40vw;
  max-width: 560px;
  aspect-ratio: 1;
  background: radial-gradient(circle, color-mix(in oklab, var(--brand-yellow) 45%, transparent), transparent 66%);
  filter: blur(6px);
  pointer-events: none;
}
.cs-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 52rem;
}
.cs-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--brand-yellow);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--text-sm);
  margin-bottom: var(--space-6);
}
.cs-back:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}
.cs-hero__eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--brand-yellow);
  margin-bottom: var(--space-5);
}
.cs-hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-2xl);
  letter-spacing: -0.015em;
  word-spacing: 0.04em;
  line-height: 1.08;
}
.cs-hero__sub {
  margin-top: var(--space-5);
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.55;
}

/* Snapshot bar */
.cs-snapshot {
  background: var(--color-surface-2);
  border-bottom: 1px solid var(--color-divider);
}
.cs-snapshot__inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  padding-block: var(--space-10);
}
.cs-snapshot__item h3 {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
[data-theme='dark'] .cs-snapshot__item h3 {
  color: var(--color-primary-active);
}
.cs-snapshot__item p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.5;
}

/* Body */
.cs-body {
  padding-block: clamp(var(--space-16), 7vw, var(--space-24));
}
.cs-wrap {
  max-width: 46rem;
  margin-inline: auto;
}
.cs-block {
  margin-bottom: clamp(var(--space-12), 6vw, var(--space-20));
}
.cs-block:last-child {
  margin-bottom: 0;
}
.cs-kicker {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-yellow);
  margin-bottom: var(--space-3);
}
[data-theme='light'] .cs-kicker {
  color: #b07d00;
}
.cs-h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-xl);
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin-bottom: var(--space-5);
}
.cs-h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-text);
  margin: var(--space-8) 0 var(--space-3);
}
.cs-p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.65;
  margin-bottom: var(--space-4);
}
.cs-p strong {
  color: var(--color-text);
  font-weight: 600;
}
.cs-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: var(--space-4) 0 var(--space-6);
}
.cs-list li {
  position: relative;
  padding-left: var(--space-6);
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.5;
}
.cs-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--radius-full);
  background: var(--brand-yellow);
}

/* Layer cards */
.cs-layers {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-top: var(--space-6);
}
.cs-layer {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--brand-yellow);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
  box-shadow: var(--shadow-sm);
}
.cs-layer__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-primary);
}
[data-theme='dark'] .cs-layer__num {
  color: var(--color-primary-active);
}
.cs-layer h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-text);
  margin: var(--space-1) 0 var(--space-3);
}
.cs-layer p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.55;
}

/* Pull / callout */
.cs-pull {
  background: color-mix(in oklab, var(--color-primary) 8%, var(--color-surface));
  border: 1px solid color-mix(in oklab, var(--color-primary) 25%, var(--color-border));
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-6), 4vw, var(--space-10));
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  line-height: 1.4;
  color: var(--color-text);
}

/* Result grid */
.cs-results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.cs-result {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.45;
}
.cs-result .check {
  width: 1.5rem;
  height: 1.5rem;
}
.cs-result .check::after {
  left: 0.48rem;
  top: 0.36rem;
  width: 0.34rem;
  height: 0.62rem;
}

/* Stack visual on case page */
.cs-stack {
  max-width: 30rem;
  margin: var(--space-8) auto 0;
}

@media (max-width: 640px) {
  .cs-snapshot__inner {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  .cs-results {
    grid-template-columns: 1fr;
  }
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .hero__inner,
  .what__grid {
    grid-template-columns: 1fr;
  }
  .hero__art {
    order: -1;
  }
  .problem-grid,
  .steps,
  .who-grid {
    grid-template-columns: 1fr;
  }
  .feature-case {
    grid-template-columns: 1fr;
  }
  .feature-case__art {
    order: -1;
  }
  .nav {
    display: none;
  }
}

@media (max-width: 560px) {
  .header__actions .btn {
    display: none;
  }
  .cta__actions {
    flex-direction: column;
  }
  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer__meta {
    align-items: flex-start;
  }
}