/* ─── 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-hero-meta {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
}

.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;
}

.cs-meta-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.2);
  align-self: center;
  margin-right: 2.5rem;
  flex-shrink: 0;
}

.cs-scroll-cue {
  position: absolute;
  bottom: 2rem;
  right: 3rem;
  z-index: 3;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: all 0.3s;
  animation: bounceDown 2s ease-in-out infinite;
}

.cs-scroll-cue:hover {
  border-color: var(--gold);
  color: var(--gold);
}

@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;
}

.cs-subtext--center {
  text-align: center;
  max-width: 680px;
  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: 0.7rem;
  color: var(--gold);
  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 ─────────────────────────────── */

.cs-full-img {
  margin: 0 -3rem;
  padding: 0 3rem;
}

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

.cs-full-img .cs-img-caption {
  text-align: center;
  margin-top: 1rem;
}

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

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

.cs-persona-card {
  border: 1px solid var(--warm-gray);
  border-radius: 8px;
  overflow: hidden;
  background: var(--off-white);
  transition: box-shadow 0.3s, transform 0.3s;
}

.cs-persona-card:hover {
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
  transform: translateY(-4px);
}

.cs-persona-img-wrap {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.cs-persona-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 20%;
  transition: transform 0.6s ease;
}

.cs-persona-card:hover .cs-persona-img-wrap img { transform: scale(1.04); }

.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;
}

.cs-persona-body { padding: 1.8rem 2rem 2rem; }

.cs-persona-name {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.8rem;
  letter-spacing: -0.02em;
  color: var(--text-dark);
  margin-bottom: 1rem;
}

.cs-persona-list {
  list-style: none;
  margin-bottom: 1.2rem;
}

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

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

.cs-persona-quote {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-style: italic;
  font-size: 0.95rem;
  color: var(--slate);
  border-left: 2px solid var(--gold);
  padding-left: 1rem;
  margin-top: 1rem;
  line-height: 1.6;
}

/* ─── 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-block { margin-bottom: 5rem; }

.cs-feature-header {
  margin-bottom: 2rem;
}

.cs-feature-header p { color: var(--text-mid); font-size: 1rem; font-weight: 300; line-height: 1.7; max-width: 640px; }

.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-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;
}

.cs-app-img-full {
  width: 100%;
  margin-top: 2rem;
}

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

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

/* ─── 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, var(--app-blue-110) 0%, #041e2c 100%);
  padding: 7rem 3rem;
  text-align: center;
}

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

.cs-next-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.8rem;
}

.cs-next-title {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: clamp(3rem, 8vw, 6rem);
  letter-spacing: -0.01em;
  color: var(--app-white);
  line-height: 0.95;
  margin-bottom: 0.5rem;
}

.cs-next-sub {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 2rem;
  font-weight: 300;
}

.cs-next-link {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  padding-bottom: 2px;
  transition: color 0.3s, border-color 0.3s;
}

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

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

.home-footer {
  background: #0f0f0f;
  color: rgba(253,252,250,0.4);
  padding: 2rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
}

/* ─── 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; }
  .cs-persona-grid { grid-template-columns: 1fr; }

  .nav-links { display: none; }
  .nav-cta { display: none; }
}

@media (max-width: 768px) {
  .cs-section { padding: 3.5rem 1.5rem; }
  .cs-hero-content { padding: 0 1.5rem 4rem; }
  .cs-overview-strip { padding: 3.5rem 1.5rem; }
  .nav-container { padding: 1rem 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; }
  .home-footer { flex-direction: column; gap: 0.4rem; text-align: center; padding: 1.5rem; }
  .cs-full-img { margin: 0; padding: 0; }
}

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

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

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

.cs-what-we-heard {
  margin-top: 4rem;
  margin-bottom: 1rem;
}

.cs-wwh-header {
  margin-bottom: 2.5rem;
}

.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);
}

.cs-persona-ex-detail-img {
  padding: 2rem;
  border-top: 1px solid var(--warm-gray);
  background: var(--cream);
}

.cs-persona-ex-detail-img img {
  width: 100%;
  border-radius: 6px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}

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

.cs-journey-intro {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-mid);
  font-weight: 300;
  max-width: 760px;
  margin: 0 auto 4rem;
  text-align: center;
}

.cs-journey-intro em {
  font-style: italic;
  color: var(--text-dark);
}

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

.cs-journey-block--warrior {
  background: var(--off-white);
}

.cs-journey-persona-tag {
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
}

.cs-journey-persona-tag span {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.cs-journey-persona-tag--sam {
  background: var(--charcoal);
}

.cs-journey-persona-tag--sam span {
  color: var(--gold);
}

.cs-journey-persona-tag--alex {
  background: var(--app-blue-90);
}

.cs-journey-persona-tag--alex span {
  color: var(--app-white);
}

.cs-journey-title {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  letter-spacing: -0.02em;
  color: var(--text-dark);
  padding: 1.8rem 2rem 0.5rem;
}

.cs-journey-subtitle {
  font-size: 0.95rem;
  color: var(--text-mid);
  line-height: 1.7;
  font-weight: 300;
  padding: 0 2rem 1.5rem;
  max-width: 800px;
}

/* Journey Map Grid */

.cs-journey-map {
  overflow-x: auto;
  padding: 0;
  border-top: 1px solid var(--warm-gray);
}

.cs-jm-header-row {
  display: grid;
  grid-template-columns: 160px repeat(4, 1fr);
  background: var(--charcoal);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.cs-jm-header-row--alex {
  background: var(--gold-dark);
}

.cs-jm-label-cell {
  padding: 1rem 1.2rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  display: flex;
  align-items: center;
}

.cs-jm-stage-cell {
  padding: 1rem 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  border-left: 1px solid rgba(255,255,255,0.1);
}

.cs-jm-stage-cell--last {
  /* no arrow needed */
}

.cs-jm-stage-name {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-light);
  display: block;
  flex-shrink: 0;
}

.cs-jm-header-row--alex .cs-jm-stage-name {
  color: rgba(255,255,255,0.7);
}

.cs-jm-stage-title {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  color: #ffffff;
  display: block;
}

.cs-jm-arrow {
  width: 24px;
  height: 12px;
  color: var(--gold);
  flex-shrink: 0;
}

.cs-jm-header-row--alex .cs-jm-arrow {
  color: rgba(255,255,255,0.5);
}

/* Row */
.cs-jm-row {
  display: grid;
  grid-template-columns: 160px repeat(4, 1fr);
  border-bottom: 1px solid var(--warm-gray);
}

.cs-jm-row--last {
  border-bottom: none;
}

.cs-jm-row-label {
  padding: 1.2rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-dark);
  letter-spacing: 0.02em;
  display: flex;
  align-items: flex-start;
  border-right: 1px solid var(--warm-gray);
  background: var(--cream);
}

.cs-jm-cell {
  padding: 1rem 1.2rem;
  border-left: 1px solid var(--warm-gray);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 80px;
  background: var(--off-white);
}

.cs-jm-note {
  font-size: 0.82rem;
  line-height: 1.55;
  padding: 0.6rem 0.8rem;
  border-radius: 4px;
  font-weight: 400;
}

.cs-jm-note--neutral {
  background: var(--cream);
  color: var(--text-mid);
  border: 1px solid var(--warm-gray);
}

.cs-jm-note--pain {
  background: #fff5f5;
  color: #8a3535;
  border: 1px solid #f0d0d0;
}

.cs-jm-note--goal {
  background: #f5f9f2;
  color: #3a6230;
  border: 1px solid #cce0c4;
}

.cs-jm-note--opportunity {
  background: #f0f7f2;
  color: #2a5a3a;
  border: 1px solid #b8d8c4;
}

.cs-jm-feeling {
  font-size: 0.82rem;
  color: var(--text-mid);
  font-style: italic;
  font-family: 'Be Vietnam Pro', sans-serif;
}

.cs-jm-feeling--frustrated { color: #8a3535; }
.cs-jm-feeling--excited { color: #3a6230; }
.cs-jm-feeling--anxious { color: #7a5a20; }
.cs-jm-feeling--neutral { color: var(--slate); }
.cs-jm-feeling--disengaged { color: #7a6060; }

.cs-jm-emoji {
  font-size: 1.1rem;
  line-height: 1;
}

/* Journey source image strip */
.cs-journey-source-img {
  padding: 1.5rem 2rem 2rem;
  border-top: 1px solid var(--warm-gray);
  background: var(--cream);
}

.cs-journey-source {
  width: 100%;
  border-radius: 6px;
  opacity: 0.9;
}

/* ─── 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(--off-white);
  border: 1px solid var(--warm-gray);
  border-radius: 8px;
  padding: 2rem;
}

.cs-test-finding--surprise {
  background: var(--charcoal);
  border-color: var(--charcoal);
}

.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: 0.95rem;
  letter-spacing: -0.01em;
  color: var(--text-dark);
  margin-bottom: 0.6rem;
}

.cs-test-finding--surprise h4 {
  color: #ffffff;
}

.cs-test-finding p {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text-mid);
  font-weight: 300;
}

.cs-test-finding--surprise p {
  color: rgba(255,255,255,0.75);
}

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

.cs-req-block {
  margin-bottom: 4rem;
}

.cs-req-block-header {
  margin-bottom: 2rem;
}

.cs-req-block-header p {
  font-size: 1rem;
  color: var(--text-mid);
  font-weight: 300;
  line-height: 1.7;
}

/* User stories grid */
.cs-user-stories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}

.cs-user-story {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  padding: 1.4rem;
  background: var(--off-white);
  border: 1px solid var(--warm-gray);
  border-radius: 6px;
}

.cs-story-icon {
  color: var(--gold);
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
  padding-top: 0.15rem;
}

.cs-user-story p {
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.6;
  font-weight: 300;
}

/* Requirements tabs */
.cs-req-tabs-wrap {
  margin-top: 3rem;
}

.cs-req-tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--warm-gray);
  margin-bottom: 0;
}

.cs-req-tab {
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-mid);
  padding: 0.9rem 1.8rem;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color 0.2s, border-color 0.2s;
}

.cs-req-tab--active,
.cs-req-tab:hover {
  color: var(--gold-dark);
  border-bottom-color: var(--gold);
}

.cs-req-panel {
  display: none;
  background: var(--off-white);
  border: 1px solid var(--warm-gray);
  border-top: none;
  border-radius: 0 0 8px 8px;
  padding: 2.5rem;
}

.cs-req-panel--active {
  display: block;
}

.cs-req-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.cs-req-col-head {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 1rem;
}

.cs-req-list {
  list-style: none;
}

.cs-req-list li {
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.6;
  padding: 0.45rem 0 0.45rem 1.3rem;
  border-bottom: 1px solid var(--warm-gray);
  position: relative;
}

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

.cs-req-list li::before {
  content: '◆';
  position: absolute;
  left: 0;
  top: 0.5rem;
  color: var(--gold);
  font-size: 0.45rem;
}

/* ─── 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-jm-header-row,
  .cs-jm-row { min-width: 720px; }
  .cs-journey-map { overflow-x: auto; }

  .cs-remote-test-block { grid-template-columns: 1fr; gap: 2.5rem; }
  .cs-test-findings-grid { grid-template-columns: 1fr; }
  .cs-user-stories-grid { grid-template-columns: 1fr 1fr; }
  .cs-req-cols { grid-template-columns: 1fr; gap: 1.5rem; }
}

@media (max-width: 768px) {
  .cs-persona-ex-header { grid-template-columns: 1fr; }
  .cs-persona-ex-photo { aspect-ratio: 16/9; } /* already default */
  .cs-journey-map { overflow-x: auto; }
  .cs-jm-header-row,
  .cs-jm-row { min-width: 640px; }
  .cs-user-stories-grid { grid-template-columns: 1fr; }
  .cs-req-tabs { flex-wrap: wrap; }
  .cs-req-tab { padding: 0.7rem 1rem; font-size: 0.8rem; }
}

/* ═══════════════════════════════════════════════════════
   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 ──────────────────────────── */

.cs-device-flows {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 2rem;
}

.cs-device-flow-card {
  border: 1px solid var(--warm-gray);
  border-radius: 8px;
  overflow: hidden;
  background: var(--off-white);
}

.cs-dflow-header {
  padding: 1.8rem 2rem;
}

.cs-dflow-header--pro { background: var(--charcoal); }
.cs-dflow-header--warrior { background: var(--gold-dark); }
.cs-dflow-header--multidog {
  background: linear-gradient(135deg, var(--charcoal) 60%, #3a3020);
}

.cs-dflow-persona {
  display: block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 0.5rem;
}

.cs-dflow-header--warrior .cs-dflow-persona {
  color: rgba(255,255,255,0.7);
}

.cs-dflow-title {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  letter-spacing: -0.02em;
  color: #ffffff;
  margin-bottom: 0.5rem;
}

.cs-dflow-scenario {
  font-size: 0.88rem;
  color: rgba(237,250,255,0.75);
  font-weight: 300;
  line-height: 1.6;
  font-style: italic;
  font-family: 'Be Vietnam Pro', sans-serif;
}

.cs-dflow-steps {
  display: flex;
  align-items: stretch;
  padding: 1.5rem 2rem;
  gap: 0;
  overflow-x: auto;
}

.cs-dflow-step {
  flex: 1;
  min-width: 160px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1rem 0.8rem;
  background: var(--off-white);
  border: 1px solid var(--warm-gray);
  border-radius: 6px;
}

.cs-dflow-step--feature {
  background: var(--cream);
  border-color: var(--gold-light);
}

.cs-dflow-step--outcome {
  background: #f0f7f2;
  border-color: #b8d8c4;
}

.cs-dflow-step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--charcoal);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  margin-bottom: 0.7rem;
  flex-shrink: 0;
}

.cs-dflow-step--feature .cs-dflow-step-num { background: var(--gold-dark); }
.cs-dflow-step--outcome .cs-dflow-step-num { background: #3a6230; }

.cs-dflow-step-content strong {
  display: block;
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--text-dark);
  margin-bottom: 0.35rem;
}

.cs-dflow-step-content p {
  font-size: 0.78rem;
  color: var(--text-mid);
  line-height: 1.5;
  font-weight: 300;
}

.cs-dflow-connector {
  flex-shrink: 0;
  width: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 1rem;
  position: relative;
}

.cs-dflow-connector::after {
  content: '→';
  color: var(--gold);
  font-size: 1.2rem;
}

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

.cs-flow-diagram {
  margin: 2rem 0 3rem;
}

.cs-flow-diagram-inner {
  background: var(--off-white);
  border: 1px solid var(--warm-gray);
  border-radius: 10px;
  padding: 3rem 2rem;
}

.cs-flow-row {
  display: flex;
  justify-content: center;
  margin-bottom: 0;
}

.cs-flow-row--center { justify-content: center; }

.cs-flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0.9rem 1.5rem;
  border-radius: 6px;
  min-width: 140px;
  max-width: 220px;
  border: 1.5px solid var(--warm-gray);
  background: var(--cream);
}

.cs-flow-node--start {
  background: var(--charcoal);
  border-color: var(--charcoal);
  border-radius: 20px;
  min-width: 80px;
  max-width: 120px;
}

.cs-flow-node--start span {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #ffffff;
}

.cs-flow-node--state {
  background: var(--charcoal);
  border-color: var(--charcoal);
}

.cs-flow-node--state strong { color: #ffffff; }
.cs-flow-node--state .cs-flow-node-sub { color: rgba(255,255,255,0.6); }

.cs-flow-node--active {
  background: var(--gold-dark);
  border-color: var(--gold-dark);
  min-width: 180px;
}

.cs-flow-node--active strong { color: #ffffff; font-size: 1rem; }

.cs-flow-node-icon {
  font-size: 1rem;
  margin-bottom: 0.3rem;
  color: var(--gold-light);
}

.cs-flow-node--active .cs-flow-node-icon { color: rgba(255,255,255,0.7); }

.cs-flow-node strong {
  display: block;
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-dark);
  margin-bottom: 0.2rem;
}

.cs-flow-node-sub {
  font-size: 0.75rem;
  color: var(--text-mid);
  font-weight: 300;
}

.cs-flow-arrow-down {
  display: flex;
  justify-content: center;
  margin: 0.5rem 0;
  color: var(--warm-gray);
  font-size: 1.2rem;
  position: relative;
}

.cs-flow-arrow-down::after {
  content: '↓';
  color: var(--text-mid);
}

.cs-flow-arrow-label-text {
  font-size: 0.72rem;
  color: var(--text-mid);
  font-weight: 500;
  white-space: nowrap;
  display: block;
  text-align: center;
  margin-bottom: 0.1rem;
}

/* Branch row — all 5 outcomes */
.cs-flow-branches {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.cs-flow-branch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  min-width: 140px;
  max-width: 180px;
}

.cs-flow-branch--center {
  flex: 1.2;
}

.cs-flow-branch-label {
  font-size: 0.72rem;
  color: var(--text-mid);
  font-weight: 500;
  text-align: center;
  line-height: 1.4;
  padding: 0 0.3rem;
  border-top: 2px solid var(--warm-gray);
  padding-top: 0.6rem;
  width: 100%;
}

.cs-flow-branch-line {
  width: 1.5px;
  height: 1.5rem;
  background: var(--warm-gray);
}

.cs-flow-node--outcome {
  width: 100%;
  padding: 1rem;
  font-size: 0.8rem;
}

.cs-flow-node--incorrect { background: #fff5f5; border-color: #f0d0d0; }
.cs-flow-node--auto { background: var(--cream); border-color: var(--warm-gray); }
.cs-flow-node--reward { background: #f0f7f2; border-color: #b8d8c4; }
.cs-flow-node--end { background: var(--charcoal); border-color: var(--charcoal); }
.cs-flow-node--end strong, .cs-flow-node--end span { color: #ffffff; }
.cs-flow-node--jackpot { background: #fff8e8; border-color: #e8c870; }

.cs-flow-outcome-icon {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.cs-flow-node--outcome strong {
  font-size: 0.82rem;
  margin-bottom: 0.3rem;
}

.cs-flow-node--outcome span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-mid);
  font-weight: 300;
}

.cs-flow-log {
  font-size: 0.68rem !important;
  letter-spacing: 0.06em;
  font-weight: 600 !important;
  color: var(--gold-dark) !important;
  margin-top: 0.3rem;
}

.cs-flow-branch-return {
  font-size: 0.68rem;
  color: var(--text-mid);
  font-style: italic;
  text-align: center;
}

.cs-flow-source-note {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-mid);
  font-style: italic;
  margin-top: 1.5rem;
}

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

.cs-app-flow-wrap {
  margin: 3rem 0;
}

.cs-app-flow-diagram {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  background: var(--off-white);
  border: 1px solid var(--warm-gray);
  border-radius: 10px;
  padding: 2rem;
  overflow-x: auto;
}

.cs-afd-column {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  min-width: 180px;
}

.cs-afd-col-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-dark);
  background: rgba(255,215,85,0.1);
  border: 1px solid var(--gold-light);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  margin-bottom: 0.5rem;
  text-align: center;
}

.cs-afd-node {
  width: 100%;
  background: var(--cream);
  border: 1.5px solid var(--warm-gray);
  border-radius: 6px;
  padding: 0.8rem 1rem;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-dark);
  line-height: 1.4;
}

.cs-afd-node span {
  display: block;
  font-size: 0.72rem;
  color: var(--text-mid);
  font-weight: 300;
  margin-top: 0.3rem;
  line-height: 1.4;
}

.cs-afd-node--start {
  background: var(--charcoal);
  border-color: var(--charcoal);
  color: #ffffff;
  border-radius: 20px;
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  padding: 0.5rem 1rem;
}

.cs-afd-node--feature {
  background: var(--charcoal);
  border-color: var(--charcoal);
  color: #ffffff;
}

.cs-afd-node--feature span { color: rgba(255,255,255,0.65); }

.cs-afd-node--live {
  background: var(--gold-dark);
}

.cs-afd-node--live span { color: rgba(255,255,255,0.75); }

.cs-afd-node--hub {
  background: var(--gold-dark);
  border-color: var(--gold-dark);
  color: #ffffff;
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
}

.cs-afd-node--hub span { color: rgba(255,255,255,0.7); }

.cs-afd-node--action {
  background: #f0f7f2;
  border-color: #b8d8c4;
  color: #3a6230;
}

.cs-afd-node--secondary {
  background: var(--off-white);
  border-color: var(--warm-gray);
  font-size: 0.75rem;
}

.cs-afd-node--outcome-green {
  width: 100%;
  background: #f0f7f2;
  border: 1.5px solid #b8d8c4;
  border-radius: 6px;
  padding: 0.8rem 1rem;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: #3a6230;
}

.cs-afd-node--outcome-green span {
  display: block;
  font-size: 0.72rem;
  color: #5a8250;
  font-weight: 300;
  margin-top: 0.3rem;
}

.cs-afd-arrow {
  font-size: 1rem;
  color: var(--text-mid);
  margin: 0.1rem 0;
  text-align: center;
}

.cs-afd-decision {
  width: 100%;
  background: #fff8e8;
  border: 1.5px solid var(--gold-light);
  border-radius: 30px;
  padding: 0.7rem 1rem;
  text-align: center;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--app-yellow-60);
  font-style: italic;
  font-family: 'Be Vietnam Pro', sans-serif;
}

.cs-afd-branch-row {
  display: flex;
  gap: 0.5rem;
  width: 100%;
}

.cs-afd-branch-row--3 {
  flex-direction: column;
}

.cs-afd-branch-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
}

.cs-afd-branch-tag {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-mid);
  background: var(--warm-gray);
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
}

/* ─── 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: 0.85rem;
  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; }
  .cs-dflow-steps { gap: 0; min-width: 600px; }
  .cs-device-flow-card { overflow-x: auto; }
  .cs-flow-branches { flex-wrap: wrap; }
  .cs-flow-branch { min-width: 130px; max-width: 160px; }
  .cs-app-flow-diagram { grid-template-columns: repeat(2, 1fr); min-width: 480px; }
}

@media (max-width: 768px) {
  .cs-market-stats { grid-template-columns: 1fr; }
  .cs-flow-branches { gap: 0.5rem; }
  .cs-flow-branch { min-width: 110px; max-width: 140px; }
  .cs-flow-branch-label { font-size: 0.65rem; }
  .cs-app-flow-diagram { grid-template-columns: 1fr; min-width: unset; }
  .cs-proto-timeline { padding-left: 1.5rem; }
}

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

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

.cs-app-design-system {
  margin: 4rem 0;
  padding: 3rem;
  background: var(--charcoal);
  border-radius: 10px;
}

.cs-app-design-system .cs-section-header--left {
  margin-bottom: 2.5rem;
}

.cs-app-design-system .section-label { color: var(--gold); }
.cs-app-design-system .cs-h3 { color: #ffffff; }
.cs-app-design-system .cs-subtext { color: rgba(255,255,255,0.6); }

.cs-app-ds-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: start;
}

.cs-app-ds-panel-title {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
}

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

.cs-app-color-group {
  margin-bottom: 1.5rem;
}

.cs-app-color-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.5);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.cs-app-color-swatches {
  display: flex;
  gap: 4px;
}

.cs-app-swatch {
  flex: 1;
  aspect-ratio: 1;
  border-radius: 4px;
  position: relative;
  cursor: default;
  min-height: 44px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
}

.cs-app-swatch span {
  font-size: 0.55rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  padding: 2px 0;
  opacity: 0;
  transition: opacity 0.15s;
  text-shadow: 0 1px 2px rgba(0,0,0,0.6);
  letter-spacing: 0;
}

.cs-app-swatch--light span {
  color: rgba(0,0,0,0.7);
  text-shadow: none;
}

.cs-app-swatch:hover span { opacity: 1; }

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

.cs-app-ds-body {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  font-weight: 300;
  margin-bottom: 1.5rem;
}

.cs-app-type-stack {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.cs-app-type-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.cs-app-type-row:last-child { border-bottom: none; }

.cs-app-type-sample {
  color: #ffffff;
  flex: 1;
  line-height: 1.2;
}

.cs-app-type-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.15rem;
  flex-shrink: 0;
}

.cs-app-type-meta span {
  font-size: 0.68rem;
  color: rgba(255,255,255,0.4);
  white-space: nowrap;
}

.cs-app-type-meta span:first-child {
  color: var(--gold-light);
  font-weight: 500;
}

.cs-app-type-divider {
  height: 1px;
  background: rgba(255,255,255,0.12);
  margin: 0.5rem 0;
}

/* ─── 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;
}

.cs-app-figma-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 2rem 2.5rem;
}

.cs-app-figma-label {
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: #ffffff;
  margin-bottom: 0.3rem;
}

.cs-app-figma-sub {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  font-weight: 300;
}

.cs-app-figma-btn {
  display: inline-block;
  background: var(--gold);
  color: var(--charcoal);
  font-family: 'Berlin Sans FB Demi', 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  padding: 0.8rem 1.8rem;
  border-radius: 4px;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s, transform 0.15s;
}

.cs-app-figma-btn:hover {
  background: var(--gold-dark);
  transform: translateY(-1px);
}

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

@media (max-width: 1024px) {
  .cs-app-ds-grid { grid-template-columns: 1fr; }
  .cs-app-figma-inner { flex-direction: column; align-items: flex-start; gap: 1.2rem; }
}

@media (max-width: 768px) {
  .cs-app-design-system { padding: 2rem 1.5rem; }
  .cs-app-color-swatches { gap: 3px; }
  .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; }
  .cs-app-type-row { flex-direction: column; align-items: flex-start; gap: 0.3rem; }
  .cs-app-type-meta { align-items: flex-start; }
}

/* ═══════════════════════════════════════════════════════
   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 */
.cs-persona-card {
  background: #ffffff;
  border-color: var(--app-blue-20);
}

/* 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,
.cs-section-header--center .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-feature-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-persona-list li,
.cs-btn-row,
.cs-team-card li {
  font-family: 'Be Vietnam Pro', sans-serif;
}

/* ── Team & persona names stay Berlin Sans ────────────── */
.cs-persona-name,
.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-feature-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 */
.cs-persona-quote {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-weight: 300;
  font-style: italic;
  border-left-color: var(--app-blue-70);
}

/* 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) ── */
.cs-journey-insights-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2.5rem;
}
@media (max-width: 768px) {
  .cs-journey-insights-grid { grid-template-columns: 1fr; }
}
.cs-journey-insight-card {
  background: var(--app-white);
  border-radius: 12px;
  padding: 2rem;
  border: 1.5px solid var(--app-blue-20);
}
.cs-journey-insight-card p {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--app-black);
  margin-top: 1rem;
}
.cs-journey-insight-card--sam {
  border-color: var(--app-blue-70);
}
.cs-journey-insight-card--alex {
  border-color: var(--app-yellow-60);
}

/* ── 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; }
}