/* Magazine layout for /case-studies/<slug> and /experiments/<slug> pages.
   Hero (kicker + title + tagline + tags) on top, then a 1fr/2fr two-column
   body — sidebar carries thumb + pull quotes, body carries the long-form
   sections. */

.page-hero {
  padding: 56px 0 28px;
  border-bottom: 1px solid var(--line);
}
.page-hero .kicker {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-problem-1);
  margin: 0 0 14px;
}
.page-hero h1 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(2.1rem, 4.5vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -.025em;
  margin: 0 0 18px;
  max-width: 18ch;
  color: var(--ink);
}
.page-hero .hero-subtitle {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  line-height: 1.3;
  color: var(--ink);
  margin: -8px 0 16px;
  letter-spacing: -.005em;
}
.page-hero .tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  line-height: 1.45;
  color: var(--ink-soft);
  max-width: 38ch;
  margin: 0 0 22px;
}
.page-hero .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-hero .tags li {
  background: var(--bg-deep);
  border: 1px solid var(--line);
  color: var(--ink-soft);
  font-family: ui-monospace, Menlo, monospace;
  font-size: .76rem;
  padding: 4px 10px;
  border-radius: 999px;
}

/* ───── Body grid ───── */
.page-body {
  padding: 50px 0 30px;
}
.page-body .grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 56px;
  align-items: start;
}
.page-body .grid--experiment {
  grid-template-columns: 3fr 4fr;
  gap: 50px;
}
@media (max-width: 880px) {
  .page-body .grid,
  .page-body .grid--experiment { grid-template-columns: 1fr; gap: 38px; }
}

/* ───── Sidebar (left column) ───── */
.page-sidebar { position: sticky; top: 28px; }
@media (max-width: 880px) {
  .page-sidebar { position: static; }
}
.page-sidebar .feature-image {
  width: 100%;
  aspect-ratio: 4 / 5;
  background-size: cover;
  background-position: center;
  border: 3px solid var(--c-problem-1);
  border-radius: 4px;
  margin: 0 0 26px;
}
.page-sidebar .demo-frame {
  width: 100%;
  aspect-ratio: 4 / 5;
  background: #0c0d11;
  border-radius: 4px;
  overflow: hidden;
  margin: 0 0 26px;
  position: relative;
}
.page-sidebar .demo-frame iframe {
  width: 100%; height: 100%; border: 0;
}
.page-sidebar .pull-quote {
  border-left: 3px solid var(--c-problem-1);
  padding: 8px 0 8px 18px;
  margin: 0 0 26px;
  font-family: var(--font-serif);
  font-size: 1.18rem;
  line-height: 1.4;
  color: var(--ink);
  letter-spacing: -.005em;
}
.page-sidebar .pull-quote cite {
  display: block;
  font-style: normal;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: .82rem;
  color: var(--ink-soft);
  margin-top: 8px;
  letter-spacing: .02em;
}
.page-sidebar .fact-list {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
  margin: 0 0 26px;
  font-size: .92rem;
}
.page-sidebar .fact-list dt {
  font-weight: 600;
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 10px 0 2px;
}
.page-sidebar .fact-list dt:first-child { margin-top: 0; }
.page-sidebar .fact-list dd {
  margin: 0;
  font-size: .95rem;
  color: var(--ink);
}
.page-sidebar .fact-list dd a { color: var(--c-problem-1); text-decoration: none; }
.page-sidebar .fact-list dd a:hover { text-decoration: underline; }

.page-sidebar .fact-list {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
  margin: 0 0 22px;
}
.page-sidebar .fact-list dt {
  font-weight: 600;
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 12px 0 2px;
}
.page-sidebar .fact-list dt:first-child { margin-top: 0; }
.page-sidebar .fact-list dd {
  margin: 0;
  font-size: .92rem;
  color: var(--ink);
}
.page-sidebar .sidebar-fineprint {
  font-size: .78rem;
  color: var(--ink-mute);
  line-height: 1.45;
  margin: 0 0 14px;
  font-style: italic;
}
.page-sidebar .demo-link {
  display: inline-block;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.02rem;
  color: var(--c-problem-1);
  text-decoration: none;
  font-weight: 500;
  margin: 0 0 22px;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
  cursor: pointer;
}
.page-sidebar .demo-link:hover { color: var(--c-strategy-1); }

/* Experiment sidebar: autoplay video + pull quote */
.page-sidebar .sidebar-video {
  width: 100%;
  border-radius: 6px;
  overflow: hidden;
  background: #0c0d11;
  margin: 0 0 22px;
  border: 1px solid var(--line);
}
.page-sidebar .sidebar-video video {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}
.page-sidebar .sidebar-quote {
  margin: 0 0 24px;
  padding: 14px 0 14px 18px;
  border-left: 3px solid var(--c-problem-1);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--ink);
}
.page-detail--experiment .sidebar-quote { border-left-color: var(--c-strategy-1); }

/* Related-pages strip (just above contact CTA) - dark bg, light text */
.related-strip {
  margin: 40px 0 0;
  padding: 40px 0 44px;
  background: var(--ink);
  color: var(--paper);
}
.related-strip .wrap { padding: 0 24px; max-width: var(--wrap); margin: 0 auto; }
.related-eyebrow {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(250, 246, 236, .55);
  margin: 0 0 18px;
}
.related-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 36px;
  max-width: 820px;
}
.related-list a {
  display: block;
  color: var(--paper);
  text-decoration: none;
  padding: 10px 0 4px;
  border-top: 1px solid rgba(250, 246, 236, .15);
  transition: border-color .15s ease;
}
.related-list a:hover { border-top-color: var(--c-problem-3); }
.related-list a:hover strong { color: var(--c-problem-3); }
.related-list strong {
  display: block;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.25;
  margin-bottom: 4px;
  color: var(--paper);
}
.related-list span {
  display: block;
  color: rgba(250, 246, 236, .65);
  font-size: .88rem;
  line-height: 1.45;
}
@media (max-width: 680px) {
  .related-list { grid-template-columns: 1fr; }
}

/* ───── Body prose ───── */
.page-prose {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--ink);
  max-width: var(--measure);
}
.page-prose h2 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.45rem, 2.4vw, 1.7rem);
  line-height: 1.15;
  letter-spacing: -.015em;
  margin: 42px 0 14px;
  color: var(--ink);
}
.page-prose h2:first-child { margin-top: 0; }
.page-prose h3 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.18rem;
  margin: 30px 0 10px;
  color: var(--ink);
}
.page-prose p {
  margin: 0 0 18px;
  color: var(--ink);
}
.page-prose p strong { font-weight: 700; color: var(--ink); }
.page-prose p em {
  font-style: italic;
  font-family: var(--font-serif);
  color: var(--c-problem-1);
  font-weight: 500;
}
.page-prose ul, .page-prose ol {
  list-style: none;
  padding: 0;
  margin: 0 0 22px;
}
.page-prose ul li, .page-prose ol li {
  position: relative;
  padding-left: 24px;
  margin: 0 0 12px;
  line-height: 1.55;
}
.page-prose ul li::before, .page-prose ol li::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(0.75em - 6px);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-problem-1);
}
.page-prose ul li:nth-child(3n+2)::before,
.page-prose ol li:nth-child(3n+2)::before { background: var(--c-solution-1); }
.page-prose ul li:nth-child(3n+3)::before,
.page-prose ol li:nth-child(3n+3)::before { background: var(--c-strategy-1); }
.page-prose blockquote {
  border-left: 3px solid var(--c-problem-1);
  padding: 8px 0 8px 22px;
  margin: 28px 0;
  font-family: var(--font-serif);
  font-size: 1.18rem;
  line-height: 1.4;
  color: var(--ink);
  font-style: italic;
}
.page-prose blockquote cite {
  display: block;
  font-style: normal;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: .82rem;
  color: var(--ink-soft);
  margin-top: 10px;
  letter-spacing: .02em;
}
.page-prose hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 36px 0;
}

/* ───── Back-link ───── */
.page-backlink {
  display: inline-block;
  margin: 36px 0 0;
  font-size: .9rem;
  color: var(--ink-soft);
  text-decoration: none;
}
.page-backlink:hover { color: var(--ink); }
.page-backlink::before { content: "←  "; }

/* ───── Index pages (/case-studies, /experiments) ───── */
.index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 26px;
  padding: 30px 0 60px;
}
.index-card {
  display: block;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.index-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -10px rgba(26, 28, 36, .25);
  border-color: var(--c-problem-1);
}
.index-card .thumb {
  aspect-ratio: 16 / 10;
  background-size: cover;
  background-position: center;
  background-color: var(--bg-deep);
  position: relative;
  overflow: hidden;
}
.index-card-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
}
.index-card:hover .index-card-video[src] { opacity: 1; }
.index-card .body {
  padding: 18px 20px 22px;
}
.index-card h3 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.18rem;
  margin: 0 0 4px;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--ink);
}
.index-card .card-subtitle {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: .95rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.3;
}
.index-card p {
  margin: 0;
  font-size: .92rem;
  color: var(--ink-soft);
  line-height: 1.5;
}