/* Stage1Energy — content pages (hubs, insights, use-cases) */

.content-hero {
  padding-top: calc(var(--top-bar-reserve) + 88px);
  padding-bottom: 64px;
}

.content-hero__intro {
  margin-top: 24px;
  color: var(--text-mute);
  max-width: 58ch;
}

.content-article-meta {
  margin-top: 16px;
  color: var(--text-mute);
}

.content-breadcrumb {
  padding-top: calc(var(--top-bar-reserve) + 16px);
  padding-bottom: 0;
}

.content-breadcrumb + .content-hero {
  padding-top: 48px;
}

.content-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  list-style: none;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.content-breadcrumb__list li:not(:last-child)::after {
  content: "/";
  margin-left: 12px;
  opacity: 0.5;
}

.content-breadcrumb a:hover {
  color: var(--moss);
}

.content-section .d2,
.content-block .d2 {
  margin-top: 16px;
}

.content-body .wrap--prose > .content-block:first-child .d2 {
  margin-top: 16px;
}

.content-block + .content-block {
  margin-top: 48px;
  padding-top: 48px;
  border-top: 1px solid var(--line);
}

.content-block .content-prose {
  max-width: none;
}

.content-prose {
  margin-top: 24px;
  max-width: 68ch;
}

.content-prose--article {
  max-width: none;
}

.content-use-case-grid .content-prose {
  max-width: none;
}

.content-prose h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 28px;
  line-height: 1.2;
  margin: 40px 0 16px;
}

.content-prose h3 {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 28px 0 12px;
  color: var(--moss);
}

.content-prose p,
.content-prose li {
  margin-bottom: 14px;
  line-height: 1.7;
}

.content-prose ul,
.content-prose ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.content-prose a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.content-article-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 64px;
  align-items: start;
}

.content-sidebar {
  position: sticky;
  top: calc(var(--top-bar-reserve) + 24px);
  padding: 24px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.content-sidebar__list {
  list-style: none;
  margin-top: 12px;
}

.content-sidebar__list li {
  padding-block: 8px;
  border-top: 1px solid var(--line);
  font-size: 15px;
}

.content-sidebar__list a:hover {
  color: var(--moss);
}

.content-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.content-card-grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

.content-card {
  display: block;
  padding: 28px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: border-color 0.15s;
}

.content-card:hover {
  border-color: var(--moss);
}

.content-card .mono-xs {
  color: var(--moss);
  margin-bottom: 8px;
}

.content-card__title {
  font-family: var(--display);
  font-weight: 400;
  font-size: 22px;
  line-height: 1.25;
  margin-bottom: 10px;
}

.content-card .body-sm {
  color: var(--text-mute);
}

/* ---------- Insights index ---------- */

.insights-index .content-hero,
.insights-index .content-featured,
.insights-index .content-topic {
  text-align: center;
}

.insights-index__inner {
  max-width: var(--max);
  margin-inline: auto;
}

.insights-index .content-hero__intro {
  margin-inline: auto;
  max-width: 48ch;
}

.insights-index__header {
  max-width: 42ch;
  margin-inline: auto;
}

.insights-index__lede {
  margin-top: 14px;
  color: var(--text-mute);
}

.content-card-grid--featured {
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 36px;
  text-align: left;
}

.content-card--lean {
  display: flex;
  flex-direction: column;
  padding: 24px 26px;
  min-height: 100%;
}

.content-card--lean .content-card__title {
  margin-bottom: 8px;
  font-size: 20px;
  line-height: 1.3;
}

.content-card__blurb {
  margin-top: auto;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text-mute);
}

.content-card--hub {
  height: 100%;
  text-align: left;
  padding: 32px;
}

.content-card--hub .content-card__title {
  font-size: 26px;
  line-height: 1.2;
  margin-bottom: 12px;
}

.content-card--hub .body-sm {
  max-width: 42ch;
}

.content-card__cta {
  display: inline-block;
  margin-top: 20px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--moss);
}

.content-card--hub:hover .content-card__cta {
  color: var(--ink);
}

.content-featured {
  border-bottom: 1px solid var(--line);
}

.content-topic + .content-topic {
  border-top: 1px solid var(--line);
}

.content-topic__header {
  max-width: 42ch;
  margin-inline: auto;
}

.content-topic__body {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 28px 40px;
  align-items: start;
  margin-top: 36px;
  text-align: left;
}

.content-topic__aside {
  padding-top: 4px;
}

.content-topic__aside-label {
  color: var(--moss);
  margin-bottom: 8px;
}

.content-topic__links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.content-topic__links li {
  border-top: 1px solid var(--line);
}

.content-topic__links a {
  display: block;
  padding-block: 11px;
  font-size: 16px;
  line-height: 1.4;
  text-decoration: none;
  transition: color 0.15s;
}

.content-topic__links a:hover {
  color: var(--moss);
}

.content-faq {
  border-top: 1px solid var(--line);
}

.content-faq__list {
  margin-top: 32px;
}

.content-faq__item {
  border-top: 1px solid var(--line);
  padding-block: 20px;
}

.content-faq__item summary {
  font-weight: 500;
  cursor: pointer;
  list-style: none;
}

.content-faq__item summary::-webkit-details-marker {
  display: none;
}

.content-faq__item p {
  margin-top: 12px;
  color: var(--text-mute);
  font-size: 15px;
  line-height: 1.65;
}

.content-cta {
  border-top: 1px solid var(--line);
}

.content-cta__inner {
  text-align: center;
  max-width: 56ch;
  margin-inline: auto;
}

.content-cta__lede {
  margin-top: 16px;
  color: var(--text-mute);
}

.content-cta__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-top: 32px;
}

.content-use-case-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}

.content-use-case-box {
  padding: 28px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.content-use-case-box ul {
  list-style: none;
  margin-top: 16px;
  font-size: 15px;
}

.content-use-case-box li {
  padding-block: 10px;
  border-top: 1px solid var(--line);
}

.content-next-step__links {
  list-style: none;
  margin-top: 16px;
  font-size: 17px;
}

.content-next-step__links li + li {
  margin-top: 12px;
}

.site-footer__grid--4 {
  grid-template-columns: 2fr 1fr 1fr 1fr;
}

@media (max-width: 899px) {
  .content-article-layout,
  .content-use-case-grid,
  .content-topic__body {
    grid-template-columns: 1fr;
  }

  .content-sidebar {
    position: static;
  }

  .content-card-grid,
  .content-card-grid--featured {
    grid-template-columns: 1fr;
  }

  .site-footer__grid--4 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 900px) and (max-width: 1199px) {
  .content-card-grid:not(.content-card-grid--featured):not(.content-card-grid--4) {
    grid-template-columns: repeat(2, 1fr);
  }

  .content-card-grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}