/* ─── HERO ─────────────────────────────────────────── */

.cs-hero {
  position: relative;
  width: 100%;
  /* Match the image's natural 2.26:1 ratio so nothing is cut off */
  aspect-ratio: 2439 / 1080;
  margin-top: 52px; /* nav height */
  overflow: hidden;
}

.cs-hero-img-wrap {
  position: absolute;
  inset: 0;
}

.cs-hero-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  filter: contrast(1.05);
  display: block;
  background: #000; /* letterbox fill if ever needed */
}

/* ─── HERO INFO BAR ─────────────────────────────── */

.cs-hero-bar {
  background: linear-gradient(135deg, var(--app-blue-110) 0%, var(--app-blue-90) 60%, #0a4a6e 100%);
  border-bottom: 2px solid rgba(45,180,231,0.25);
  position: relative;
  overflow: hidden;
}

/* Subtle radial glow in top-left corner — mirrors app button gradient */
.cs-hero-bar::before {
  content: '';
  position: absolute;
  top: -60px;
  left: -80px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(205,241,255,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.cs-hero-bar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 3rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 3rem;
}

.cs-hero-bar-left {
  flex: 0 0 auto;
}

.cs-hero-bar-right {
  flex: 0 0 auto;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 1rem;
  text-align: right;
}

/* Eyebrow / title / sub: dark-background versions */
.cs-eyebrow {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--app-yellow-50);
  margin-bottom: 0.6rem;
}

.cs-hero-title {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: clamp(3.5rem, 8vw, 7rem);
  line-height: 0.9;
  letter-spacing: -0.01em;
  color: var(--app-white);
  margin-top: 0;
  margin-bottom: 0.25rem;
}

.cs-hero-logo {
  display: block;
  height: 240px;
  width: auto;
}

.cs-hero-sub {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: clamp(1rem, 2.2vw, 1.4rem);
  font-weight: 300;
  color: var(--app-blue-20);
  letter-spacing: 0.01em;
  margin-top: 0;
  margin-bottom: 0;
}


.cs-meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding-right: 2.5rem;
}

.cs-meta-label {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--app-yellow-50);
}

.cs-meta-value {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 0.88rem;
  font-weight: 300;
  color: rgba(237,250,255,0.9);
  line-height: 1.4;
}


@keyframes bounceDown {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ─── OVERVIEW STRIP ───────────────────────────────── */

.cs-overview-strip {
  background: linear-gradient(160deg, var(--app-blue-110) 0%, #052535 100%);
  padding: 5rem 3rem;
  position: relative;
  overflow: hidden;
}

.cs-overview-strip::after {
  content: '';
  position: absolute;
  bottom: -100px;
  right: -120px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,242,200,0.07) 0%, transparent 65%);
  pointer-events: none;
}

.cs-overview-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: start;
}

.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 1rem;
}

.cs-overview-title {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.cs-overview-body p {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 1.05rem;
  line-height: 1.8;
  color: rgba(205,241,255,0.8);
  font-weight: 300;
}

/* ─── SECTIONS ─────────────────────────────────────── */

.cs-section { padding: clamp(4rem, 8vw, 8rem) 3rem; }
.cs-section--cream { background: var(--cream); }

.cs-section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.cs-section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.cs-section-header--left {
  text-align: left;
  margin-bottom: 2.5rem;
}

.section-title {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text-dark);
  margin-bottom: 1rem;
}

.cs-h3 {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 1rem;
}

.cs-subtext {
  font-size: 1rem;
  color: var(--text-mid);
  line-height: 1.7;
  max-width: 640px;
  font-weight: 300;
  margin: 0 auto;
}


/* Problem statement headline text */
.cs-problem-statement {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.55;
  color: var(--text-dark);
  max-width: 900px;
  margin: 0 auto 3rem;
  text-align: center;
}

/* Problem statement two-column body */
.cs-problem-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  margin-bottom: 3rem;
}

.cs-problem-left,
.cs-problem-right {
  align-self: start;
}

.cs-problem-left > p {
  font-size: 1rem;
  color: var(--text-mid);
  line-height: 1.75;
  font-weight: 300;
}

.cs-problem-quote {
  margin-top: 1.5rem;
  font-size: 0.95rem !important;
  font-family: 'Be Vietnam Pro', sans-serif !important;
  font-style: italic;
  color: var(--text-mid);
  line-height: 1.65;
  border-left: 2px solid var(--gold);
  padding-left: 1rem;
}

.cs-problem-quote em {
  font-style: italic;
  font-family: inherit;
}

/* ─── TWO COL LAYOUT ───────────────────────────────── */

.cs-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-bottom: 4rem;
}

.cs-two-col--reverse .cs-col-img { order: -1; }

.cs-col-text p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-mid);
  margin-bottom: 1rem;
  font-weight: 300;
}

.cs-col-text .section-label { margin-bottom: 0.6rem; }

.cs-img-frame {
  border-radius: 6px;
  overflow: hidden;
  background: var(--warm-gray);
  box-shadow: 0 8px 40px rgba(0,0,0,0.08);
}

.cs-img-frame img { width: 100%; height: auto; display: block; }

.cs-img-caption {
  font-size: 0.78rem;
  color: var(--text-mid);
  margin-top: 0.75rem;
  font-style: italic;
  line-height: 1.5;
}

.cs-img-caption a {
  color: var(--gold-dark);
  text-decoration: none;
  font-style: normal;
}

.cs-img-caption a:hover { text-decoration: underline; }

/* ─── PAIN LIST ────────────────────────────────────── */

.cs-pain-list {
  margin-top: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.cs-pain-item {
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
}

.cs-pain-num {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--gold-dark);
  letter-spacing: 0.1em;
  padding-top: 0.2rem;
  flex-shrink: 0;
  width: 24px;
}

.cs-pain-item strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 0.25rem;
}

.cs-pain-item p {
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.6;
  margin: 0;
}

/* ─── CALLOUT ──────────────────────────────────────── */

.cs-callout {
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
  background: var(--off-white);
  border-left: 3px solid var(--gold);
  padding: 1.8rem 2.2rem;
  border-radius: 0 6px 6px 0;
  margin-top: 3rem;
  box-shadow: 0 2px 20px rgba(0,0,0,0.04);
}

.cs-callout p {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 1.1rem;
  font-weight: 300;
  font-style: italic;
  color: var(--slate);
  line-height: 1.6;
}

.cs-callout-icon { flex-shrink: 0; color: var(--gold); margin-top: 2px; }

/* ─── ROLE CALLOUT ─────────────────────────────────── */

.cs-role-callout {
  background: var(--charcoal);
  color: rgba(255,255,255,0.85);
  padding: 2.5rem 3rem;
  border-radius: 6px;
  margin-bottom: 3.5rem;
  position: relative;
  font-size: 1.05rem;
  line-height: 1.75;
  font-weight: 300;
}

.cs-role-tag {
  display: inline-block;
  background: var(--gold);
  color: var(--charcoal);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  border-radius: 2px;
  margin-bottom: 1rem;
}

/* ─── STATS ROW ────────────────────────────────────── */

.cs-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.cs-stat-card {
  background: var(--cream);
  border: 1px solid var(--warm-gray);
  border-radius: 6px;
  padding: 2.2rem 2rem;
  text-align: center;
}

.cs-stat-card--accent {
  background: var(--charcoal);
  border-color: var(--charcoal);
}

.cs-stat-num {
  display: block;
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.6rem;
  color: var(--gold);
}

.cs-stat-label {
  font-size: 0.85rem;
  color: var(--text-mid);
  line-height: 1.5;
  font-weight: 400;
}

.cs-stat-card--accent .cs-stat-label {
  color: rgba(255,255,255,0.6);
}

/* ─── FULL-WIDTH IMAGE ─────────────────────────────── */


/* ─── PERSONAS ─────────────────────────────────────── */


.cs-persona-label-overlay {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--charcoal);
  color: var(--gold);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.35rem 0.9rem;
  border-radius: 2px;
}


/* ─── TEAM GRID ────────────────────────────────────── */

.cs-team-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 5rem;
}

.cs-team-card {
  border: 1px solid var(--warm-gray);
  border-radius: 6px;
  padding: 2rem;
  background: var(--off-white);
}

.cs-team-card--featured {
  background: var(--charcoal);
  border-color: var(--charcoal);
  color: rgba(255,255,255,0.9);
}

.cs-team-card h3 {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.2rem;
  color: inherit;
}

.cs-team-card--featured h3 { color: #ffffff; }

.cs-team-role {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.04em;
  margin-bottom: 1.2rem;
  text-transform: uppercase;
}

.cs-team-card ul {
  list-style: none;
}

.cs-team-card li {
  font-size: 0.88rem;
  padding: 0.35rem 0;
  border-bottom: none;
  color: rgba(255,255,255,0.7);
  line-height: 1.5;
}

.cs-team-card:not(.cs-team-card--featured) li {
  border-bottom: none;
  color: var(--app-black) !important;
}

.cs-team-tag {
  display: inline-block;
  background: var(--gold);
  color: var(--charcoal);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.25rem 0.7rem;
  border-radius: 2px;
  margin-bottom: 0.8rem;
}

/* ─── FEATURE TABLE ────────────────────────────────── */


.cs-feature-table {
  border: 1px solid var(--warm-gray);
  border-radius: 6px;
  overflow: hidden;
}

.cs-feature-thead {
  display: grid;
  grid-template-columns: 1.5fr 2.5fr 1fr;
  background: var(--charcoal);
  padding: 0.9rem 1.2rem;
  gap: 1rem;
}

.cs-feature-thead span {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

.cs-feature-row {
  display: grid;
  grid-template-columns: 1.5fr 2.5fr 1fr;
  gap: 1rem;
  padding: 0.9rem 1.2rem;
  border-top: 1px solid var(--warm-gray);
  align-items: center;
  background: var(--off-white);
  transition: background 0.2s;
}

.cs-feature-row:hover { background: var(--cream); }

.cs-feature-row--must { background: var(--must-bg); }
.cs-feature-row--must:hover { background: #fef3e5; }
.cs-feature-row--nice { background: var(--cream); }

.cs-feature-row span {
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.5;
}

.cs-feature-row span:first-child {
  font-weight: 600;
  color: var(--text-dark);
}

.cs-priority {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.7rem;
  border-radius: 20px;
  text-align: center;
  display: inline-block;
}

.cs-priority--must { background: var(--gold); color: var(--charcoal); }
.cs-priority--should { background: var(--warm-gray); color: var(--slate); }
.cs-priority--nice { background: var(--cream); color: var(--text-mid); border: 1px solid var(--warm-gray); }

/* ─── AGITATOR BLOCK ───────────────────────────────── */

.cs-agitator-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-bottom: 5rem;
  background: var(--off-white);
  padding: 3rem;
  border-radius: 8px;
  border: 1px solid var(--warm-gray);
}

.cs-agitator-text .section-label { margin-bottom: 0.5rem; }
.cs-agitator-text > p {
  font-size: 1rem;
  color: var(--text-mid);
  line-height: 1.75;
  font-weight: 300;
  margin-bottom: 1.5rem;
}

.cs-agitator-reasons {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.cs-agitator-reasons li {
  font-size: 0.9rem;
  color: var(--text-mid);
  padding-left: 1.2rem;
  position: relative;
  line-height: 1.55;
}

.cs-agitator-reasons li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-size: 0.8rem;
}

/* ─── CHECK LIST ───────────────────────────────────── */

.cs-check-list {
  list-style: none;
  margin-top: 0.8rem;
}

.cs-check-list li {
  font-size: 0.9rem;
  color: var(--text-mid);
  padding: 0.4rem 0 0.4rem 1.5rem;
  border-bottom: 1px solid var(--warm-gray);
  position: relative;
}

.cs-check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 700;
}

/* ─── PRODUCT BLOCKS ───────────────────────────────── */

.cs-product-block {
  margin-bottom: 3rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--warm-gray);
}

.cs-product-header {
  max-width: 700px;
  margin-bottom: 2rem;
}

.cs-product-header p {
  font-size: 1rem;
  color: var(--text-mid);
  line-height: 1.75;
  font-weight: 300;
}

.cs-product-num {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-size: 5rem;
  font-weight: 700;
  color: var(--app-blue-90);
  line-height: 1;
  display: block;
  margin-bottom: 0.2rem;
}

.cs-product-name {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  letter-spacing: -0.03em;
  color: var(--text-dark);
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.cs-product-img-full {
  width: 100%;
  margin-bottom: 2rem;
}

.cs-product-img-full img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.08);
}

.cs-product-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.cs-product-feat {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.cs-feat-icon {
  color: var(--gold);
  font-size: 0.6rem;
  flex-shrink: 0;
  padding-top: 0.3rem;
}

.cs-product-feat strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 0.2rem;
}

.cs-product-feat p {
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.55;
  margin: 0;
}

/* ─── BUTTON MAP ───────────────────────────────────── */

.cs-button-map {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.cs-btn-row {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.5;
}

.cs-btn-label {
  width: 28px;
  height: 28px;
  background: var(--charcoal);
  color: var(--gold);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.05em;
}

/* ─── APP BLOCK ────────────────────────────────────── */

.cs-app-block {
  border-top: 1px solid var(--warm-gray);
  padding-top: 4rem;
  margin-top: 1rem;
}

.cs-my-contribution-tag {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-weight: 700;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--gold);
  color: var(--charcoal);
  padding: 0.25rem 0.7rem;
  border-radius: 2px;
  vertical-align: middle;
}

.cs-jump-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: 'Be Vietnam Pro', sans-serif;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: var(--charcoal);
  background: var(--gold);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  text-decoration: none;
  white-space: nowrap;
  transition: background 150ms;
}

.cs-jump-btn:hover { background: var(--gold-dark); }

#app-prototype { scroll-margin-top: 96px; }

.cs-app-header {
  max-width: 700px;
  margin-bottom: 2rem;
}

.cs-app-header p {
  font-size: 1rem;
  color: var(--text-mid);
  line-height: 1.75;
  font-weight: 300;
  margin-bottom: 1rem;
}

.cs-app-screens {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 2rem;
}

.cs-app-screens li {
  font-size: 0.88rem;
  color: var(--text-mid);
  padding: 0.3rem 0 0.3rem 1rem;
  border-bottom: 1px solid var(--warm-gray);
  position: relative;
}

.cs-app-screens li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-size: 0.8rem;
}


/* ─── PROTOTYPE BLOCK ──────────────────────────────── */

.cs-proto-block {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
  margin-top: 4rem;
  padding-top: 4rem;
  border-top: 1px solid var(--warm-gray);
}

.cs-proto-text .section-label { margin-bottom: 0.5rem; }
.cs-proto-text > p {
  font-size: 1rem;
  color: var(--text-mid);
  line-height: 1.75;
  font-weight: 300;
}

/* ─── OUTCOME GRID ─────────────────────────────────── */

.cs-outcome-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 5rem;
}

.cs-outcome-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.5rem;
  background: var(--off-white);
  border: 1px solid var(--warm-gray);
  border-radius: 6px;
}

.cs-outcome-num {
  font-size: 1rem;
  color: var(--gold);
  font-weight: 700;
  flex-shrink: 0;
}

.cs-outcome-card p {
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.55;
  font-weight: 400;
}

/* ─── MARKET BLOCK ─────────────────────────────────── */

.cs-market-block {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  align-items: stretch;
}

.cs-market-intro {
  max-width: 740px;
  margin: 0 auto;
  text-align: center;
}

.cs-market-intro > p {
  font-size: 1rem;
  color: var(--text-mid);
  line-height: 1.75;
  font-weight: 300;
}

/* Legacy alias kept for any stray selectors */


/* ─── LESSONS GRID ─────────────────────────────────── */

.cs-lessons-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.cs-lesson-card {
  background: var(--charcoal);
  border-radius: 8px;
  padding: 2.5rem;
  color: rgba(255,255,255,0.8);
}

.cs-lesson-card--light {
  background: var(--off-white);
  border: 1px solid var(--warm-gray);
  color: var(--text-mid);
}

.cs-lesson-card h3 {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 0.8rem;
}

.cs-lesson-card--light h3 { color: var(--text-dark); }

.cs-lesson-card p {
  font-size: 0.9rem;
  line-height: 1.7;
  font-weight: 300;
}

.cs-lesson-tag {
  display: inline-block;
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--app-blue-70);
  border: 1px solid var(--app-blue-30);
  padding: 0.25rem 0.7rem;
  border-radius: 20px;
  margin-bottom: 0.8rem;
}

/* ─── NEXT PROJECT ─────────────────────────────────── */

.cs-next {
  background: linear-gradient(160deg, #232d63 0%, #0d1230 100%);
  padding: 7rem 3rem;
  text-align: center;
}

.cs-next-inner { max-width: 600px; margin: 0 auto; }

.cs-next-eyebrow {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #ff9500;
  margin-bottom: 0.8rem;
}


.cs-next-logo {
  width: clamp(220px, 32vw, 340px);
  height: auto;
  display: block;
  margin: 0 auto 1rem;
}

.cs-next-sub {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 2rem;
  font-weight: 300;
}

.cs-next-link {
  display: inline-block;
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: #ff9500;
  text-decoration: none;
  border-bottom: 1px solid #ff9500;
  padding-bottom: 2px;
  transition: color 200ms, border-color 200ms;
}

.cs-next-link:hover { color: #ffffff; border-color: #ffffff; }

/* ─── FOOTER ───────────────────────────────────────── */


/* ─── REVEAL ANIMATION ─────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── RESPONSIVE ───────────────────────────────────── */

@media (max-width: 1024px) {
  .cs-two-col,
  .cs-two-col--reverse,
  .cs-agitator-block,
  .cs-proto-block,
  .cs-market-block {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .cs-two-col--reverse .cs-col-img { order: 0; }

  .cs-team-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .cs-overview-inner { grid-template-columns: 1fr; gap: 2rem; }
  .cs-stats-row { grid-template-columns: 1fr; gap: 1rem; }
  .cs-outcome-grid { grid-template-columns: 1fr 1fr; }
  .cs-lessons-grid { grid-template-columns: 1fr; }
  .cs-product-features { grid-template-columns: 1fr; }
  

  .nav-links { display: none; }
  
}

@media (max-width: 768px) {
  .cs-section { padding: 3.5rem 1.5rem; }
  
  .cs-overview-strip { padding: 3.5rem 1.5rem; }
  
  .cs-feature-table { overflow-x: auto; }
  .cs-feature-thead,
  .cs-feature-row { grid-template-columns: 1.2fr 1.8fr 0.8fr; font-size: 0.8rem; }
  .cs-outcome-grid { grid-template-columns: 1fr; }
  .cs-app-screens { grid-template-columns: 1fr; }
  
  
}

/* ═══════════════════════════════════════════════════════
   NEW SECTIONS — Revision 2
   ======================================================= */

/* ─── RESEARCH LIMITATIONS NOTE ────────────────────── */

/* ─── WHAT WE HEARD ─────────────────────────────── */


.cs-wwh-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.cs-wwh-card {
  background: var(--charcoal);
  border-radius: 8px;
  padding: 2rem 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cs-wwh-num {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  letter-spacing: -0.03em;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.cs-wwh-title {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  color: var(--app-white);
  margin-bottom: 0.25rem;
}

.cs-wwh-card > p {
  font-size: 0.875rem;
  font-weight: 300;
  color: rgba(255,255,255,0.7);
  line-height: 1.65;
  margin: 0;
}

@media (max-width: 600px) {
  .cs-wwh-grid { grid-template-columns: 1fr; }
}

.cs-research-note {
  background: var(--off-white);
  border-left: 3px solid var(--warm-gray);
  padding: 1.8rem 2.2rem;
  border-radius: 0 6px 6px 0;
  margin-top: 3rem;
}

.cs-research-note-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-mid);
  margin-bottom: 0.7rem;
}

.cs-research-note p {
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.75;
  font-weight: 300;
}

/* ─── EXPANDED PERSONA CARDS ────────────────────────── */

.cs-persona-expanded-grid {
  display: flex;
  flex-direction: column;
  gap: 4rem;
  margin-top: 2.5rem;
}

.cs-persona-expanded-card {
  background: var(--off-white);
  border: 1px solid var(--warm-gray);
  border-radius: 10px;
  overflow: hidden;
}

.cs-persona-ex-header {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.cs-persona-ex-photo {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--warm-gray);
}

.cs-persona-ex-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 15%;
}

.cs-persona-ex-intro {
  padding: 2.5rem 2.5rem 2rem;
  background: var(--charcoal);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.cs-persona-ex-name {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  letter-spacing: -0.04em;
  color: #ffffff;
  line-height: 1;
  margin-bottom: 0.3rem;
}

.cs-persona-ex-fullname {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  font-style: italic;
  color: var(--gold-light);
  margin-bottom: 1.2rem;
}

.cs-persona-ex-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.4rem;
}

.cs-persona-tag {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  background: rgba(45,180,231,0.15);
  color: var(--gold-light);
  border: 1px solid rgba(45,180,231,0.3);
  padding: 0.25rem 0.7rem;
  border-radius: 20px;
}

.cs-persona-ex-bio {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
  font-weight: 300;
  margin-bottom: 1.5rem;
}

.cs-persona-ex-quote {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 1rem;
  font-style: italic;
  font-weight: 400;
  color: rgba(255,255,255,0.9);
  border-left: 2px solid var(--gold);
  padding-left: 1.1rem;
  line-height: 1.6;
}

.cs-persona-ex-body {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--warm-gray);
}

.cs-persona-ex-col {
  padding: 2rem;
  border-right: 1px solid var(--warm-gray);
}

.cs-persona-ex-col:last-child {
  border-right: none;
}

.cs-persona-ex-col-title {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 1rem;
}

.cs-persona-ex-list {
  list-style: none;
}

.cs-persona-ex-list li {
  font-size: 0.88rem;
  color: var(--text-mid);
  padding: 0.45rem 0 0.45rem 1.3rem;
  border-bottom: 1px solid var(--warm-gray);
  line-height: 1.55;
  position: relative;
}

.cs-persona-ex-list li:last-child {
  border-bottom: none;
}

.cs-persona-ex-list li::before {
  position: absolute;
  left: 0;
  top: 0.45rem;
  font-size: 0.7rem;
  font-weight: 700;
}

.cs-persona-ex-list--goals li::before {
  content: '✓';
  color: var(--gold);
}

.cs-persona-ex-list--pain li::before {
  content: '×';
  color: #b05050;
}

.cs-persona-ex-list:not(.cs-persona-ex-list--goals):not(.cs-persona-ex-list--pain) li::before {
  content: '→';
  color: var(--gold);
}


/* ─── JOURNEY MAPS ──────────────────────────────────── */


/* Journey Map Grid */


/* Row */


/* Journey source image strip */


/* ─── REMOTE TESTING SECTION ────────────────────────── */

.cs-remote-test-block {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
  margin-bottom: 4rem;
  padding: 3rem;
  background: var(--off-white);
  border: 1px solid var(--warm-gray);
  border-radius: 8px;
}

.cs-remote-test-intro .section-label {
  margin-bottom: 0.5rem;
}

.cs-remote-test-intro p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-mid);
  font-weight: 300;
}

.cs-foam-prototype-wrap .cs-img-frame {
  overflow: visible;
  border-radius: 8px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.1);
}

/* Test findings grid */
.cs-test-findings-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.cs-test-finding {
  background: var(--charcoal);
  border: 1px solid var(--charcoal);
  border-radius: 8px;
  padding: 2rem;
}

.cs-test-finding-icon {
  font-size: 1.2rem;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 0.8rem;
  line-height: 1;
}

.cs-test-finding h4 {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  color: #ffffff;
  margin-bottom: 0.6rem;
}

.cs-test-finding p {
  font-size: 0.88rem;
  line-height: 1.65;
  color: rgba(255,255,255,0.75);
  font-weight: 300;
}

/* ─── PRODUCT REQUIREMENTS ──────────────────────────── */


/* User stories grid */


/* Requirements tabs */


/* ─── RESPONSIVE — new components ────────────────────── */

@media (max-width: 1024px) {
  .cs-persona-ex-header { grid-template-columns: 1fr; }
  .cs-persona-ex-body { grid-template-columns: 1fr; }
  .cs-persona-ex-col { border-right: none; border-bottom: 1px solid var(--warm-gray); }
  .cs-persona-ex-col:last-child { border-bottom: none; }

  
  

  .cs-remote-test-block { grid-template-columns: 1fr; gap: 2.5rem; }
  .cs-test-findings-grid { grid-template-columns: 1fr; }
  
  
}

@media (max-width: 768px) {
  .cs-persona-ex-header { grid-template-columns: 1fr; }
  .cs-persona-ex-photo { aspect-ratio: 16/9; } /* already default */
  
  
  
  
  
}

/* ═══════════════════════════════════════════════════════
   NEW SECTIONS — Revision 3
   ======================================================= */

/* ─── MARKET STATS (early placement) ─────────────────── */

.cs-market-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 0;
  width: 100%;
}

.cs-mstat {
  padding: 1.75rem;
  background: var(--off-white);
  border: 1px solid var(--warm-gray);
  border-radius: 6px;
  text-align: center;
}

.cs-mstat-desc {
  margin-top: 0.75rem;
  font-size: 0.82rem;
  color: var(--text-mid);
  line-height: 1.55;
  text-align: left;
}

.cs-mstat--accent .cs-mstat-desc {
  color: rgba(255,255,255,0.6);
}

.cs-mstat--accent {
  background: var(--charcoal);
  border-color: var(--charcoal);
}

.cs-mstat--accent .cs-mstat-num { color: var(--gold); }
.cs-mstat--accent .cs-mstat-label { color: rgba(255,255,255,0.6); }

.cs-mstat-num {
  display: block;
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  letter-spacing: -0.03em;
  color: var(--text-dark);
  margin-bottom: 0.4rem;
}

.cs-mstat-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--text-mid);
  line-height: 1.4;
}

/* ─── DEVICE USER FLOW CARDS ──────────────────────────── */


/* ─── REMOTE FLOW DIAGRAM ─────────────────────────────── */


/* Branch row — all 5 outcomes */


/* ─── APP FLOW DIAGRAM ────────────────────────────────── */


/* ─── PHYSICAL PROTOTYPE TIMELINE ─────────────────────── */

.cs-proto-timeline {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 2rem;
}

.cs-proto-timeline::before {
  content: '';
  position: absolute;
  left: 0.55rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: var(--warm-gray);
}

.cs-proto-milestone {
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
  padding: 0.8rem 0;
  position: relative;
}

.cs-proto-dot {
  flex-shrink: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--charcoal);
  border: 2px solid var(--off-white);
  margin-left: -1.85rem;
  margin-top: 0.25rem;
  position: relative;
  z-index: 1;
}

.cs-proto-dot--gold {
  background: var(--gold);
  width: 14px;
  height: 14px;
  margin-left: -1.95rem;
}

.cs-proto-milestone strong {
  display: block;
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1.85rem;
  color: var(--text-dark);
  margin-bottom: 0.25rem;
}

.cs-proto-milestone--last strong { color: var(--gold-dark); }

.cs-proto-milestone p {
  font-size: 0.85rem;
  color: var(--text-mid);
  font-weight: 300;
  line-height: 1.6;
}

/* ─── RESPONSIVE — Revision 3 ─────────────────────────── */

@media (max-width: 1024px) {
  .cs-market-stats { grid-template-columns: 1fr; }
  
  
  
  
  
}

@media (max-width: 768px) {
  .cs-market-stats { grid-template-columns: 1fr; }
  
  
  
  
  .cs-proto-timeline { padding-left: 1.5rem; }
}

/* ═══════════════════════════════════════════════════════
   APP SECTION — Revision 4: Design System + Screens
   ======================================================= */

/* ─── APP DESIGN SYSTEM CONTAINER ────────────────────── */


/* ─── COLOUR SWATCHES ─────────────────────────────────── */


/* ─── TYPOGRAPHY STACK ────────────────────────────────── */


/* ─── APP SCREEN BLOCKS ───────────────────────────────── */

.cs-app-screens-block {
  margin: 4rem 0;
  border: 1px solid var(--warm-gray);
  border-radius: 10px;
  overflow: hidden;
  background: var(--off-white);
}

.cs-app-screens-header {
  padding: 2.5rem 2.5rem 1.5rem;
  border-bottom: 1px solid var(--warm-gray);
  background: var(--cream);
}

.cs-app-screens-header .cs-h3 { margin-top: 0.3rem; }

.cs-app-screen-img {
  padding: 2rem;
  background: #0C2840;
}

.cs-app-screen-img img {
  width: 100%;
  border-radius: 6px;
  display: block;
}

.cs-app-screen-img .cs-img-caption {
  color: rgba(255,255,255,0.5);
  margin-top: 0.8rem;
}

.cs-app-screen-annotations {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0;
  border-top: 1px solid var(--warm-gray);
}

.cs-app-annotation {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  border-right: 1px solid var(--warm-gray);
  border-bottom: 1px solid var(--warm-gray);
  align-items: flex-start;
}

.cs-app-annotation:last-child { border-right: none; }

/* last row annotations remove bottom border */
.cs-app-screen-annotations > .cs-app-annotation:nth-last-child(-n+3) {
  border-bottom: none;
}

.cs-app-annotation-num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--charcoal);
  color: var(--gold);
  font-size: 0.7rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.1rem;
}

.cs-app-annotation strong {
  display: block;
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--text-dark);
  margin-bottom: 0.3rem;
}

.cs-app-annotation p {
  font-size: 0.8rem;
  color: var(--text-mid);
  line-height: 1.6;
  font-weight: 300;
}

/* ─── FIGMA LINK BLOCK ────────────────────────────────── */

.cs-app-figma-link {
  margin: 2rem 0 0;
  background: var(--charcoal);
  border-radius: 8px;
  overflow: hidden;
}


/* ─── RESPONSIVE — App screens ────────────────────────── */


@media (max-width: 768px) {
  
  
  .cs-app-screen-annotations { grid-template-columns: 1fr; }
  .cs-app-annotation { border-right: none; }
  .cs-app-annotation:nth-last-child(-n+3) { border-bottom: 1px solid var(--warm-gray); }
  .cs-app-annotation:last-child { border-bottom: none; }
  .cs-app-screen-img { padding: 1rem; }
  
  
}

/* ═══════════════════════════════════════════════════════
   PHYSICAL BUILD SLIDER — Revision 5
   ======================================================= */

.cs-proto-slider-wrap {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  background: var(--charcoal);
  flex-shrink: 0;
}

/* When inside cs-proto-block (two-col layout) slider takes right column */
.cs-proto-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  margin-top: 3rem;
}

.cs-proto-slider {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
}

.cs-proto-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.cs-proto-slide.active {
  opacity: 1;
  pointer-events: auto;
}

.cs-proto-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.cs-proto-slide-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem 1.4rem 1.2rem;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, transparent 100%);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.85);
  font-style: italic;
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 0.9rem;
  line-height: 1.4;
  margin: 0;
}

.cs-proto-slider-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1rem;
  background: rgba(0,0,0,0.35);
}

.cs-proto-prev,
.cs-proto-next {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #ffffff;
  transition: background 0.2s;
  flex-shrink: 0;
}

.cs-proto-prev:hover,
.cs-proto-next:hover {
  background: var(--app-blue-80);
  border-color: var(--app-blue-80);
}

.cs-proto-dots {
  display: flex;
  gap: 6px;
  align-items: center;
}

.cs-proto-dot-btn {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.2s, transform 0.2s;
}

.cs-proto-dot-btn.active {
  background: var(--app-yellow-50);
  transform: scale(1.4);
}

/* Override: proto-block without old two-col */
@media (max-width: 900px) {
  .cs-proto-block {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .cs-proto-slider {
    aspect-ratio: 4/3;
  }
}

/* ─── HERO / HERO BAR RESPONSIVE ─────────────────── */

/* Tablet */
@media (max-width: 768px) {
  .cs-hero {
    aspect-ratio: 2439 / 1080;
    margin-top: 60px;
  }

  .cs-hero-bar-inner {
    flex-direction: column;
    gap: 2rem;
    padding: 2rem 1.5rem;
  }

  .cs-hero-bar-right {
    text-align: left;
    flex-direction: column;
    gap: 1.2rem;
  }
}

/* Problem two-col stacking */
@media (max-width: 768px) {
  .cs-problem-two-col {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .cs-market-stats {
    grid-template-columns: 1fr;
  }
}

/* Mobile */
@media (max-width: 480px) {
  .cs-hero {
    aspect-ratio: 2439 / 1080;
    margin-top: 56px;
  }

  .cs-hero-bar-inner {
    padding: 1.75rem 1.25rem;
    gap: 1.5rem;
  }

  .cs-hero-title {
    font-size: clamp(3rem, 14vw, 5rem);
  }

  .cs-hero-sub {
    font-size: clamp(1rem, 5vw, 1.4rem);
  }

  .cs-meta-item {
    padding-right: 0;
  }
}

/* ═══════════════════════════════════════════════════════
   CUEPO APP DESIGN LANGUAGE — Color Variables & Integration
   ======================================================= */

:root {
  /* ── CuePo app palette ────────────────────────── */
  --app-blue-10:  #edfaff;
  --app-blue-20:  #cdf1ff;
  --app-blue-30:  #ade8ff;
  --app-blue-70:  #2fb4e7;
  --app-blue-80:  #138fbe;
  --app-blue-90:  #006c95;
  --app-blue-110: #003d54;
  --app-yellow-10: #fffbee;
  --app-yellow-20: #fff2c8;
  --app-yellow-50: #ffd755;
  --app-yellow-60: #ddb840;
  --app-white:    #fdfdf7;
  --app-black:    #101212;
  --app-red-50:   #ff754f;
  --app-green-50: #3ef556;
}

/* ── SCOPED VARIABLE REMAP ───────────────────────────────
   Override every portfolio gold/charcoal/cream reference inside
   the case study body. The nav/footer are outside .cs-* so are
   completely unaffected. We remap at :root level scoped to the
   case study sections so all existing var(--gold) etc. calls
   automatically resolve to app colours.
   ─────────────────────────────────────────────────────────── */

/* Remap inside all case-study content wrappers */
.cs-section,
.cs-overview-strip,
.cs-hero-bar,
.cs-next {
  /* gold → app yellow-50 */
  --gold:       var(--app-yellow-50);
  --gold-dark:  var(--app-yellow-60);
  --gold-light: var(--app-yellow-20);

  /* charcoal → app deep blue */
  --charcoal:   var(--app-blue-110);

  /* neutrals → app near-whites */
  --cream:      var(--app-yellow-10);
  --off-white:  var(--app-white);
  --warm-gray:  var(--app-blue-20);

  /* text */
  --text-dark:  var(--app-black);
  --text-mid:   #3a4a52;
  --slate:      #3a4a52;
  --must-bg:    #edfaff;

  /* explicit remap so background: var(--text-dark) on cs-next also resolves */
  /* cs-next has its own override above so this is just belt-and-braces */
}

/* ── Page-level body tint ─────────────────────────────── */
/* Keep a very faint warm-white that transitions to app white */
body { background: var(--app-white); }

/* ── Section background palette swap ─────────────────── */
/* Light sections use the app's cream/yellow-10 instead of portfolio cream */
.cs-section--cream {
  background: var(--app-yellow-10);
}

/* The overview strip keeps charcoal (header) — untouched */

/* Even-numbered plain sections pick up a faint blue tint */
.cs-section:not(.cs-section--cream):not(.cs-section--dark):not(#app) {
  background: var(--app-white);
}

/* App section gets a luscious deep blue background */
#app {
  background: linear-gradient(160deg, var(--app-blue-110) 0%, #002030 100%);
}

/* Physical build section — warm yellow tint */
#build {
  background: var(--app-yellow-10);
}

/* Outcomes section — fresh blue tint */
#outcomes {
  background: var(--app-blue-10);
}

/* Research section — soft yellow */
#research {
  background: var(--app-yellow-10);
}

/* ── Card accent updates ──────────────────────────────── */
/* Stat cards: must-have pill uses app blue */
.cs-stat-card {
  background: #ffffff;
  border-color: var(--app-blue-20);
}

.cs-stat-card--accent {
  background: var(--app-blue-90);
  border-color: var(--app-blue-90);
  color: #ffffff;
}

.cs-stat-card--accent .cs-stat-label {
  color: rgba(255,255,255,0.65);
}

/* Outcome cards: blue background, gold checkmark, white text */
.cs-outcome-card {
  background: var(--app-blue-90);
  border-color: var(--app-blue-90);
  color: #ffffff;
}

.cs-outcome-card p { color: #ffffff; }

.cs-outcome-num { color: var(--gold); }

/* Persona cards: softer background */


/* Agitator block */
.cs-agitator-block {
  background: #ffffff;
  border-color: var(--app-blue-20);
}

/* Team cards — non-featured only (featured keeps its dark navy bg) */
.cs-team-card:not(.cs-team-card--featured) {
  background: #ffffff;
  border-color: var(--app-blue-20);
}

/* Featured (My Role) card — explicit dark navy so white text is always readable */
.cs-team-card--featured {
  background: var(--app-blue-110) !important;
  border-color: var(--app-blue-110) !important;
  color: rgba(237,250,255,0.9);
}

.cs-team-card--featured li {
  color: rgba(237,250,255,0.85) !important;
}

/* Feature table rows */
.cs-feature-row {
  background: #ffffff;
}

.cs-feature-row:hover {
  background: var(--app-blue-10);
}

/* Callout accent — use app blue instead of gold */
.cs-callout {
  background: var(--app-blue-10);
  border-left-color: var(--app-blue-70);
}

/* ── App screen blocks inside the app section ─────────── */
.cs-app-screens-block {
  background: #ffffff;
  border-color: var(--app-blue-30);
}

.cs-app-screens-header {
  background: var(--app-blue-10);
  border-bottom-color: var(--app-blue-20);
}

/* ── Lesson cards ─────────────────────────────────────── */
.cs-lesson-card {
  background: var(--app-blue-110);
}

.cs-lesson-card--light {
  background: #ffffff;
  border-color: var(--app-blue-20);
}

/* ═══════════════════════════════════════════════════════
   WAVY UNDERLINE — SVG decoration under section headings
   ======================================================= */

/*
  The wavy line is extracted from the CuePo welcome screen SVG.
  Each segment spans ~9.45px at 402px viewport width.
  Scaled to ~3× for web: each wave ~28px wide, total ~85px for 3 cycles.
  We use an inline SVG data-URI as the ::after pseudo-element's background.
*/

.wavy-head {
  display: block;
  position: relative;
  padding-bottom: 0.55rem;
}

.wavy-head::after {
  content: '';
  display: block;
  width: 100%;
  height: 12px;
  margin-top: 0.45rem;
  /* Wavy SVG — golden yellow, full-width tiling */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='12' viewBox='0 0 80 12' fill='none'%3E%3Cpath d='M0 6 C4 1.5, 6 1.5, 10 6 C14 10.5, 16 10.5, 20 6 C24 1.5, 26 1.5, 30 6 C34 10.5, 36 10.5, 40 6 C44 1.5, 46 1.5, 50 6 C54 10.5, 56 10.5, 60 6 C64 1.5, 66 1.5, 70 6 C74 10.5, 76 10.5, 80 6' stroke='%23d4a017' stroke-width='3.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: repeat-x;
  background-size: 80px 12px;
}

/* Centred headers: centre the wave too */
.cs-section-header .wavy-head::after {
  margin-left: auto;
  margin-right: auto;
}

/* All wavy lines use the same golden yellow */
#app .wavy-head::after,
.cs-section--cream .wavy-head::after,
#research .wavy-head::after,
#build .wavy-head::after { /* colour is set globally above */ }

/* ═══════════════════════════════════════════════════════
   ORGANIC BLOB BACKGROUND LAYER — Parallax SVG blobs
   ======================================================= */

/*
  Blobs sit at z-index: -1, behind all page content.
  JS drives translateY on each .blob-svg via rAF.
*/
#cuepo-blobs {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.blob-svg {
  position: absolute;
  width: min(900px, 70vw);
  height: min(900px, 70vw);
  will-change: transform;
}

/* Initial positions — blobs anchored to viewport corners */
#blob-blue-1 {
  top: -15vw;
  right: -20vw;
}

#blob-yellow-1 {
  top: 35vh;
  left: -20vw;
}

#blob-blue-2 {
  bottom: -10vw;
  left: -15vw;
}

#blob-yellow-2 {
  bottom: 20vh;
  right: -22vw;
}


/* Overview strip — same golden yellow wave */


/* ═══════════════════════════════════════════════════════
   TYPOGRAPHY OVERRIDES — CuePo App Fonts
   Berlin Sans FB Demi for all display heads
   Be Vietnam Pro for all body / UI copy
   ======================================================= */

/* ── Global body font for case study content ─────────── */
/* Only scoped to .cs-* so portfolio nav/footer are unaffected */
.cs-section,
.cs-overview-strip,
.cs-hero-bar {
  font-family: 'Be Vietnam Pro', sans-serif;
}

/* ── Section labels ───────────────────────────────────── */
.section-label {
  font-family: 'Be Vietnam Pro', sans-serif;
}

/* ── All section h2 titles → Berlin Sans FB Demi ─────── */
.section-title,
.cs-overview-title {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* ── h3 subheads → Be Vietnam Pro semibold ───────────── */
.cs-h3 {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-weight: 600;
}

/* ── Body paragraphs ─────────────────────────────────── */
.cs-col-text p,
.cs-problem-left > p,
.cs-agitator-text > p,
.cs-proto-text > p,
.cs-app-header p,
.cs-product-header p,
.cs-market-intro > p,
.cs-subtext,
.cs-outcome-card p,
.cs-lesson-card p {
  font-family: 'Be Vietnam Pro', sans-serif;
}

/* ── Pain list / check list / feature rows ───────────── */
.cs-pain-item p,
.cs-pain-item strong,
.cs-check-list li,
.cs-feature-row span,
.cs-app-screens li,
.cs-agitator-reasons li,
.cs-btn-row,
.cs-team-card li {
  font-family: 'Be Vietnam Pro', sans-serif;
}

/* ── Team & persona names stay Berlin Sans ────────────── */
.cs-team-card h3,
.cs-lesson-card h3 {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* ── Product names Berlin Sans ───────────────────────── */
.cs-product-name {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
}

/* ── App body text colour → app near-black ───────────── */
.cs-section {
  color: var(--app-black);
}

/* Body text in light sections uses app near-black */
.cs-col-text p,
.cs-problem-left > p,
.cs-agitator-text > p,
.cs-proto-text > p,
.cs-app-header p,
.cs-product-header p,
.cs-market-intro > p {
  color: #3a3e40;
}

/* Lesson cards dark → keep white text */
.cs-lesson-card p { color: rgba(237,250,255,0.8); }
.cs-lesson-card--light p { color: #3a3e40; }

/* Overview title → stay white */
.cs-overview-title { color: var(--app-white); }

/* ── Hero title also gets a yellow-50 tint on hover for delight ── */
/* (subtle — only on the CuePo wordmark) */
.cs-hero-title { color: var(--app-white); }

/* ── Section label colour update — use app blue-70 on light sections */
.cs-section .section-label {
  color: var(--app-blue-90);
}

/* Dark sections (overview/app) keep gold-adjacent label */
.cs-overview-strip .section-label,
#app .section-label {
  color: var(--app-yellow-50);
}

/* Problem statement pull-quote — Be Vietnam Pro italic */
.cs-problem-statement {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-style: normal;
  font-weight: 300;
  color: #2a3035;
}

/* Callout quote — keep a serif feel but with Vietnam Pro */
.cs-callout p {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-style: italic;
  font-weight: 300;
  color: #2a3035;
}

/* Persona quote */


/* Problem quote blockquote */
.cs-problem-quote {
  border-left-color: var(--app-blue-70);
  font-family: 'Be Vietnam Pro', sans-serif !important;
}


/* ── Journey Insight Cards (condensed Section 04) ── */


/* ── 3D renders grid (image + video side-by-side, stacks on mobile) ── */
.cs-renders-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 3rem;
  align-items: start;
}
@media (max-width: 768px) {
  .cs-renders-grid { grid-template-columns: 1fr; }
}


/* ═══════════════════════════════════════════════════════
   PAGE-HEAD STYLES — moved here from cuepo_index.html
   These blocks previously lived in <style> tags after the
   cuepo.css <link>, so they MUST stay at the end of this
   file (in this order) to keep the same cascade.
   ======================================================= */

/* ── (1) Team card inset · research mosaic · accordions ·
   lightbox · agitator list · dashboard frames ── */
/* ── Team card with inset ── */
.cs-team-card--with-inset {
  display: flex;
  flex-direction: row;
  gap: 2rem;
  align-items: flex-start;
}
.cs-team-card-main { flex: 1; min-width: 0; }
.cs-team-card-inset {
  flex: 0 0 240px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 0.9rem;
  font-style: italic;
  color: rgba(255,255,255,0.55);
  align-self: stretch;
  display: flex;
  align-items: center;
}
.cs-team-card-inset p { margin: 0; line-height: 1.6; }
@media (max-width: 768px) {
  .cs-team-card--with-inset { flex-direction: column; }
  .cs-team-card-inset { flex: 0 0 auto; width: 100%; box-sizing: border-box; }
}

/* ── Research mosaic grid ── */
.cs-research-imgs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 260px 260px;
  gap: 12px;
  contain: layout paint;
}
.cs-research-img-cell {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  background: rgba(47,180,231,0.08);
}
.cs-research-img-cell img {
  width: 100%; height: 100%;
  object-fit: cover; display: block; border-radius: 8px;
}
.cs-research-img-cell .cs-img-caption {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.72));
  margin: 0; padding: 1.2rem 0.75rem 0.7rem;
  border-radius: 0 0 8px 8px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.92);
  font-style: italic;
}
.cs-research-img-cell--wide { grid-column: 1 / 3; }
.cs-research-img-cell--tall { grid-column: 3; grid-row: 1 / 3; }
@media (max-width: 640px) {
  .cs-research-imgs-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .cs-research-img-cell--wide,
  .cs-research-img-cell--tall { grid-column: 1; grid-row: auto; }
  .cs-research-img-cell { height: 220px; }
  .cs-research-img-cell img { height: 220px; }
}

/* ── Accordion / details ── */
.cs-accordion { margin: 0.6rem 0; }
.cs-accordion + .cs-accordion { margin-top: 0.5rem; }
.cs-accordion-trigger {
  list-style: none;
  cursor: pointer;
  padding: 1.1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  user-select: none;
  background: rgba(47,180,231,0.09);
  border: 1px solid rgba(47,180,231,0.28);
  border-radius: 10px;
  transition: background 180ms, border-color 180ms;
}
.cs-accordion-trigger:hover { background: rgba(47,180,231,0.16); border-color: rgba(47,180,231,0.5); }
.cs-accordion-trigger::-webkit-details-marker { display: none; }
.cs-accordion-trigger h3 { color: #d4a017; }
details[open] > .cs-accordion-trigger {
  border-radius: 10px 10px 0 0;
  background: rgba(47,180,231,0.13);
  border-color: rgba(47,180,231,0.38);
  border-bottom-color: transparent;
}
.cs-accordion-arrow {
  flex-shrink: 0;
  color: #2fb4e7;
  transition: transform 300ms ease;
}
details[open] > .cs-accordion-trigger .cs-accordion-arrow { transform: rotate(180deg); }
.cs-accordion-body {
  padding: 2rem 1.5rem 2.5rem;
  border: 1px solid rgba(47,180,231,0.28);
  border-top: none;
  border-radius: 0 0 10px 10px;
  background: rgba(47,180,231,0.04);
}

/* ── Lightbox modal ── */
.cs-lightbox {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.9);
  z-index: 9000;
  overflow: auto;
  cursor: zoom-out;
  padding: 4.5rem 2rem 2.5rem;
  box-sizing: border-box;
  /* flex-direction: column lets margin:auto on the inner work for both axes
     without the justify-content:center clipping issue on wide images */
  flex-direction: column;
}
.cs-lightbox.open { display: flex; }
.cs-lightbox-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  cursor: default;
  /* margin:auto centres when image fits; falls back to left-edge when wider
     than viewport, making the full image scrollable left-to-right */
  margin: auto;
  width: max-content;
  min-width: min(100%, 320px);
}
.cs-lightbox-inner img {
  max-width: 88vw;
  max-height: 76vh;
  border-radius: 6px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.7);
  display: block;
  height: auto;
}
.cs-lightbox-close {
  position: fixed; top: 1.25rem; right: 1.5rem;
  background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2);
  color: #fff; border-radius: 50%; width: 40px; height: 40px;
  font-size: 20px; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 150ms; z-index: 9001;
}
.cs-lightbox-close:hover { background: rgba(255,255,255,0.22); }
.cs-lightbox-zoom-bar {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: rgba(0,0,0,0.55);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 8px;
  padding: 0.25rem 0.5rem;
  backdrop-filter: blur(6px);
  cursor: default;
}
.cs-lightbox-zoom-btn {
  background: none; border: none; color: #fff;
  font-size: 20px; width: 34px; height: 34px;
  cursor: pointer; border-radius: 5px;
  display: flex; align-items: center; justify-content: center;
  transition: background 140ms; line-height: 1; flex-shrink: 0;
}
.cs-lightbox-zoom-btn:hover:not(:disabled) { background: rgba(255,255,255,0.14); }
.cs-lightbox-zoom-btn:disabled { opacity: 0.28; cursor: default; }
.cs-lightbox-zoom-label {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 0.78rem; color: rgba(255,255,255,0.75);
  min-width: 3rem; text-align: center; letter-spacing: 0.04em;
  pointer-events: none;
}
.cs-research-img-cell img { cursor: zoom-in; }

/* ── Agitator reasons — no bullets ── */
.cs-agitator-reasons { list-style: none; padding-left: 0; }
.cs-agitator-reasons li::before { content: none; display: none; }

/* ── Dashboard scrollable frames ── */
.app-dashboard-screens-row { display: flex; gap: 16px; overflow-x: auto; padding: 8px 0 16px; scrollbar-width: thin; scrollbar-color: rgba(47,180,231,0.3) transparent; }
.app-dashboard-frame { flex: 0 0 200px; }
.app-dashboard-scroll { height: 420px; overflow-y: auto; border-radius: 16px; border: 1px solid rgba(255,255,255,0.1); scrollbar-width: thin; scrollbar-color: rgba(47,180,231,0.3) rgba(255,255,255,0.05); }
.app-dashboard-scroll img { width: 100%; display: block; }
.app-dashboard-frame .cs-img-caption { margin-top: 0.5rem; text-align: center; }

/* ── (2) Wavy underline & product number overrides ── */
/* ── Wavy underline overrides ── */
.wavy-head {
  display: inline-block !important;
  position: relative;
}
.wavy-head::after {
  content: '' !important;
  display: block !important;
  width: 100% !important;
  height: 14px !important;
  margin-top: 0.45rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='14' viewBox='0 0 80 14' fill='none'%3E%3Cpath d='M0 7 C8 2.5%2C 12 2.5%2C 20 7 C28 11.5%2C 32 11.5%2C 40 7 C48 2.5%2C 52 2.5%2C 60 7 C68 11.5%2C 72 11.5%2C 80 7' stroke='%23d4a017' stroke-width='4.5' stroke-linecap='round'/%3E%3C/svg%3E") !important;
  background-repeat: repeat-x !important;
  background-size: 80px 14px !important;
}
/* ── Product numbers — primary blue ── */
.cs-product-num {
  color: #2fb4e7 !important;
}

/* ── (3) Site nav override for case studies ── */
/* ── Site nav override for case studies ── */
  #nav {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 500; height: 52px;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 36px;
    background: rgba(226,146,58,0.95);
    backdrop-filter: blur(10px);
    transition: background 300ms ease;
  }
  #nav.scrolled {
    background: rgba(226,146,58,0.95);
  }
  .nav-wordmark svg { fill: #3b1e05 !important; }
  .site-nav-links {
    font-family: 'Sofia Sans Condensed', 'Sofia Sans', sans-serif;
    font-size: 16px; font-weight: 700; letter-spacing: 0.05em;
    color: #3b1e05;
    display: flex; align-items: center;
  }
  .site-nav-links a { text-decoration: none; color: inherit; transition: opacity 150ms; white-space: nowrap; }
  .site-nav-links a:hover { opacity: 0.7; }
  .site-nav-sep { margin: 0 7px; opacity: 0.35; }
  .site-nav-hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
  .site-nav-hamburger span { display: block; width: 22px; height: 2px; background: #3b1e05; }
  .site-nav-mobile { display: none; flex-direction: column; position: fixed; top: 52px; left: 0; right: 0; background: rgba(13,11,9,0.97); padding: 24px 32px 36px; z-index: 499; transform: translateY(-100%); opacity: 0; transition: transform 300ms ease, opacity 300ms ease; }
  .site-nav-mobile.open { transform: translateY(0); opacity: 1; }
  .site-nav-mobile a { font-size: 30px; font-weight: 700; text-transform: uppercase; color: #fff; text-decoration: none; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.07); display: block; transition: color 150ms; }
  .site-nav-mobile a:hover { color: #e2923a; }
  .site-nav-mobile a:last-child { border-bottom: none; }
  .btn-nav { display: inline-block; border: 1.5px solid currentColor; padding: 5px 14px; margin: 5px 14px; border-radius: 9999px; text-decoration: none; color: inherit; font-family: 'Sofia Sans Condensed', sans-serif; font-size: 0.82em; letter-spacing: 0.08em; text-transform: uppercase; white-space: nowrap; transition: opacity 150ms; }
  .btn-nav:hover { opacity: 0.7; }
  @media (max-width: 768px) {
    .site-nav-links { display: none; }
    .site-nav-hamburger { display: flex; }
    .site-nav-mobile { display: flex; }
  }
  html, body { margin: 0; padding: 0; }

/* ── (4) Table of contents bar ── */
/* ── Table of Contents ── */

/* Scroll offset so sticky nav + TOC bar don't cover headings */
.cs-section, .cs-hero, .cs-hero-bar, .cs-overview-strip, .cs-next { scroll-margin-top: 96px; }

/* ── TOC bar — sticky, horizontal (same design at every breakpoint) ── */
.cs-toc-mobile {
  display: block;
  position: sticky;
  top: 52px;
  z-index: 450;
  background: rgba(4,28,40,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(47,180,231,0.18);
}
.cs-toc-mobile-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 0.25rem 0.75rem;
}
.cs-toc-mobile-inner a {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 0.72rem;
  font-weight: 500;
  color: rgba(255,255,255,0.42);
  text-decoration: none;
  text-transform: uppercase;
  padding: 0.5rem 0.85rem;
  border-radius: 4px;
  transition: color 150ms, background 150ms;
  white-space: nowrap;
}
.cs-toc-mobile-inner a:hover { color: rgba(255,255,255,0.85); }
.cs-toc-mobile-inner a.toc-active {
  color: #d4a017;
  background: rgba(47,180,231,0.18);
}

/* ── (5) Footer bar ── */
.footer-bar {
    background: #050403;
    padding: 20px 36px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    position: relative;
    z-index: 1;
  }
  .footer-bar span {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: 11px;
    color: rgba(255,255,255,0.22);
    letter-spacing: 0.06em;
  }