/* ── CASE STUDY (uber-product-breakdown.html) ── */
/* Reuses design tokens from style.css — no new colors/fonts introduced. */

.case-eyebrow {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.case-note {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 6px;
}

.case-subtitle {
  font-size: 1.2rem;
  color: var(--text-soft);
  max-width: 620px;
  margin-bottom: 48px;
}

.case-lede-lg {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-soft);
  max-width: 720px;
  margin-bottom: 64px;
}

.case-cover {
  aspect-ratio: 16 / 9;
  border-radius: 24px;
  margin-bottom: 40px;
  overflow: hidden;
  background: var(--bg);
}

.case-cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-block {
  margin-bottom: 80px;
}

.case-block h2 {
  font-family: var(--sans);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 14px;
}

.case-lede {
  color: var(--text-dim);
  font-size: 1rem;
  line-height: 1.6;
  max-width: 640px;
  margin-bottom: 24px;
}

.case-card {
  border-radius: 28px;
  background: var(--surface);
  padding: 32px;
}

.case-card + .case-card {
  margin-top: 20px;
}

.case-card-label {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-bottom: 18px;
}

.case-card-note {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: 18px;
}

/* ── Bar charts (dependency-free stand-in for the original Recharts bars) ── */

.bar-chart {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.bar-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bar-group-label {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text);
}

.bar-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.bar-row-name {
  flex: 0 0 128px;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.bar-track {
  flex: 1;
  height: 10px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
}

.bar-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: var(--text-dim);
}

.bar-fill--accent {
  background: var(--accent);
}

.bar-value {
  flex: 0 0 52px;
  text-align: right;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text);
}

/* ── Core shift toggle diagram ── */

.core-shift-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.core-shift-toggle button {
  border-radius: 999px;
  padding: 10px 18px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text-dim);
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.core-shift-toggle button[data-view="today"].is-active {
  background: var(--text);
  border-color: var(--text);
  color: var(--bg);
}

.core-shift-toggle button[data-view="proposed"].is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

.core-shift-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.core-shift-flow[hidden] {
  display: none;
}

.core-shift-step {
  min-width: 150px;
  border-radius: 16px;
  padding: 16px 20px;
  border: 1px solid rgba(156, 147, 132, 0.3);
  background: rgba(156, 147, 132, 0.06);
}

.core-shift-flow[data-view-panel="proposed"] .core-shift-step {
  border-color: rgba(227, 161, 77, 0.32);
  background: rgba(227, 161, 77, 0.06);
}

.core-shift-step .step-label {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text);
}

.core-shift-step .step-sub {
  font-size: 0.76rem;
  color: var(--text-dim);
  margin-top: 4px;
}

.core-shift-arrow {
  color: var(--text-dim);
  font-size: 1.2rem;
}

.core-shift-note {
  margin-top: 28px;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-soft);
  max-width: 640px;
}

.core-shift-note .accent {
  color: var(--accent);
  font-weight: 500;
}

/* ── Problem list ── */

.problem-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.problem-card {
  border-radius: 24px;
  background: var(--surface);
  padding: 26px 28px;
}

.problem-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 10px;
}

.problem-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}

.problem-market {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.problem-cause {
  color: var(--text-soft);
  line-height: 1.62;
  margin-bottom: 12px;
}

.problem-cost {
  font-size: 0.88rem;
  color: var(--accent);
  font-weight: 500;
}

/* ── Insights ── */

.insight-list {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.insight h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.insight p {
  color: var(--text-soft);
  line-height: 1.65;
}

/* ── Solutions list (below the diverging bar chart) ── */

.solutions-list {
  margin-top: 20px;
  border-radius: 24px;
  border: 1px solid var(--line);
  overflow: hidden;
}

.solutions-list-item {
  padding: 22px 26px;
  border-bottom: 1px solid var(--line);
}

.solutions-list-item:last-child {
  border-bottom: none;
}

.solutions-market {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.solutions-name {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}

.solutions-note {
  font-size: 0.92rem;
  color: var(--text-soft);
}

/* ── Rollout phases ── */

.phase-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.phase-card {
  border-radius: 20px;
  background: var(--surface);
  padding: 22px;
}

.phase-label {
  font-size: 0.74rem;
  color: var(--text-dim);
  margin-bottom: 10px;
}

.phase-title {
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 14px;
}

.phase-gate {
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 500;
}

/* ── The bet callout ── */

.bet-box {
  border-radius: 28px;
  padding: 36px 38px;
  background: rgba(227, 161, 77, 0.05);
  border: 1px solid rgba(227, 161, 77, 0.22);
}

.bet-kicker {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 10px;
}

.bet-box h3 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 14px;
}

.bet-box p {
  color: var(--text-soft);
  line-height: 1.7;
}

/* ── Closing CTA ── */

.cta-box {
  border-radius: 28px;
  padding: 40px;
  background: var(--surface);
  text-align: center;
}

.cta-box h3 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 12px;
}

.cta-box p {
  max-width: 520px;
  margin: 0 auto 24px;
  color: var(--text-soft);
  line-height: 1.6;
}

/* ── Sources ── */

.sources-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
  margin-top: 8px;
}

.sources-group-label {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.sources-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  list-style: none;
}

.sources-list li {
  font-size: 0.88rem;
  color: var(--text-soft);
  line-height: 1.5;
}

.sources-disclaimer {
  margin-top: 40px;
  font-size: 0.76rem;
  color: var(--text-dim);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .case-card,
  .bet-box,
  .cta-box {
    padding: 24px;
  }

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

  .sources-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .bar-row-name {
    flex-basis: 92px;
  }

  .case-block {
    margin-bottom: 56px;
  }
}