.sector-hero {
  position: relative;
  background: var(--light);
  color: var(--ink);
  padding-top: calc(var(--header-h) + clamp(3rem, 7vw, 5.5rem));
  padding-bottom: calc(clamp(2.5rem, 5vw, 4rem) + var(--curve-h));
}

.sector-hero h1 {
  max-width: 16ch;
  margin-bottom: 1.25rem;
}

.sector-hero .lede {
  max-width: 52ch;
}

.sector-hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* ── Content bands ────────────────────────────────────────────────────── */

.sector-block,
.sector-block-alt {
  padding-block: var(--section-y);
}

.sector-block-alt {
  background: var(--bg-2);
}

/* A run of white blocks separates with a hairline rather than more air, so
   the page keeps one rhythm instead of drifting apart. */
.sector-block + .sector-block {
  padding-top: 0;
}

.sector-block + .sector-block > .container {
  border-top: 1px solid var(--separator);
  padding-top: var(--section-y);
}

.sector-block h2,
.sector-block-alt h2 {
  max-width: 20ch;
}

.sector-block .lede,
.sector-block-alt .lede {
  max-width: 62ch;
  margin-top: 1rem;
}

.sector-block .lede + .lede,
.sector-block-alt .lede + .lede {
  margin-top: 1.25rem;
}

.sector-block .lede a,
.sector-block-alt .lede a {
  color: var(--accent);
}

.sector-block .lede a:hover,
.sector-block-alt .lede a:hover {
  text-decoration: underline;
  text-underline-offset: 0.1875rem;
}

.sector-block .lede + .card-video,
.sector-block-alt .lede + .card-video,
.sector-block .lede + .card-media,
.sector-block-alt .lede + .card-media {
  margin-top: 2rem;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
}

.sector-block .card-video + .lede,
.sector-block-alt .card-video + .lede,
.sector-block .card-media + .lede,
.sector-block-alt .card-media + .lede,
.sector-block .feature-row + .lede,
.sector-block-alt .feature-row + .lede,
.sector-block .problem-grid + .lede,
.sector-block-alt .problem-grid + .lede {
  margin-top: 2.5rem;
}

/* ── Problem grid ─────────────────────────────────────────────────────── */

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
}

.problem-grid article {
  border-radius: var(--r-lg);
  background: var(--bg-2);
  padding: clamp(1.375rem, 2.6vw, 1.75rem);
}

.sector-block-alt .problem-grid article {
  background: var(--bg);
  box-shadow: var(--shadow-sm);
}

.problem-grid h3 {
  font-size: 1.25rem;
  letter-spacing: -0.018em;
  margin-bottom: 0.5rem;
}

.problem-grid p {
  font-size: 0.9375rem;
  line-height: 1.55;
  letter-spacing: -0.004em;
  color: var(--ink-2);
}

/* ── Feature row ──────────────────────────────────────────────────────── */

.feature-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
}

.feature-row article {
  border-radius: var(--r-lg);
  background: var(--bg-2);
  padding: clamp(1.25rem, 2.4vw, 1.75rem);
}

.sector-block-alt .feature-row article {
  background: var(--bg);
  box-shadow: var(--shadow-sm);
}

.feature-row h3 {
  font-size: 1.1875rem;
  letter-spacing: -0.016em;
  margin-bottom: 0.5rem;
}

.feature-row p {
  font-size: 0.9375rem;
  line-height: 1.55;
  letter-spacing: -0.004em;
  color: var(--ink-2);
}

/* ── Scenario timeline ────────────────────────────────────────────────── */

.scenario {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  border-left: 1px solid var(--separator);
  padding-left: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  max-width: 58ch;
}

.scenario-step {
  position: relative;
}

.scenario-step::before {
  content: "";
  position: absolute;
  left: -2.0625rem;
  top: 0.4375rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
}

.scenario-step time {
  display: block;
  margin-bottom: 0.375rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.scenario-step p {
  font-size: 1rem;
  line-height: 1.55;
  letter-spacing: -0.008em;
  color: var(--ink-2);
}

/* ── Steps ────────────────────────────────────────────────────────────── */

.sector-steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
}

.sector-steps li {
  border-radius: var(--r-lg);
  background: var(--bg-2);
  padding: clamp(1.5rem, 2.6vw, 2rem);
}

.sector-block-alt .sector-steps li {
  background: var(--bg);
  box-shadow: var(--shadow-sm);
}

.sector-steps h3 {
  font-size: 1.25rem;
  letter-spacing: -0.018em;
  margin: 0.75rem 0 0.5rem;
}

.sector-steps p {
  font-size: 0.9375rem;
  line-height: 1.55;
  letter-spacing: -0.004em;
  color: var(--ink-2);
}

/* ── FAQ ──────────────────────────────────────────────────────────────── */

.sector-faq {
  margin-top: clamp(2rem, 4vw, 3rem);
  max-width: 62ch;
  border-top: 1px solid var(--separator);
}

.sector-faq details {
  border-bottom: 1px solid var(--separator);
}

.sector-faq summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 0;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.016em;
  transition: color 0.2s var(--ease), transform 0.1s ease-out;
}

.sector-faq summary:hover {
  color: var(--accent);
}

.sector-faq summary:active {
  transform: scale(0.995);
}

.sector-faq summary::-webkit-details-marker {
  display: none;
}

/* A plus that rotates into a minus — the same path in both directions. */
.sector-faq summary::after {
  content: "";
  flex-shrink: 0;
  width: 0.875rem;
  height: 0.875rem;
  background: currentColor;
  color: var(--ink-3);
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'%3E%3Cpath d='M7 1v12M1 7h12' fill='none' stroke='%23000' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center / contain;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'%3E%3Cpath d='M7 1v12M1 7h12' fill='none' stroke='%23000' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center / contain;
  transition: transform 0.35s var(--ease-swift), color 0.2s var(--ease);
}

.sector-faq details[open] summary::after {
  transform: rotate(135deg);
  color: var(--accent);
}

.sector-faq details p {
  font-size: 1rem;
  line-height: 1.65;
  letter-spacing: -0.008em;
  color: var(--ink-2);
  padding-bottom: 0.25rem;
}

.sector-faq details p:last-of-type {
  padding-bottom: 1.25rem;
}

.sector-faq details p + p {
  margin-top: 0.75rem;
}

.sector-faq details p a {
  color: var(--accent);
}

.sector-faq details p a:hover {
  text-decoration: underline;
  text-underline-offset: 0.1875rem;
}

/* ── Closing band ─────────────────────────────────────────────────────── */

.sector-close {
  position: relative;
  background: var(--light);
  color: var(--ink);
  padding-block: var(--section-y);
  text-align: center;
}

.sector-close h2 {
  font-size: clamp(2.5rem, 6.4vw, 5rem);
  text-transform: uppercase;
  margin-inline: auto;
}

.sector-close .lede {
  margin: 1.25rem auto 0;
  max-width: 46ch;
}

.sector-close-cta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.sector-related {
  margin-top: clamp(3rem, 6vw, 4.5rem);
  padding-top: 2.5rem;
  border-top: 1px solid var(--separator);
}

.sector-related h3 {
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.875rem;
}

.sector-related h3:not(:first-child) {
  margin-top: 2rem;
}

.sector-related nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.625rem 1.375rem;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.006em;
  color: var(--ink-2);
}

.sector-related nav a {
  transition: color 0.2s var(--ease);
}

.sector-related nav a:hover {
  color: var(--accent);
}

@media (max-width: 56rem) {
  .problem-grid,
  .sector-steps,
  .feature-row {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sector-faq summary,
  .sector-faq summary::after {
    transition: none;
  }
  .sector-faq summary:active {
    transform: none;
  }
}

@media (prefers-contrast: more) {
  .feature-row article {
    border: 1px solid var(--separator-strong);
  }
}