.bh /* ============================================================
   Case: Space as an asset class (SpaceTech report for a VC fund)
   Shares styles.bh-css tokens; everything page-specific is prefixed cs-.
   ============================================================ */

/* ---------- hero ---------- */
.bh-cs-hero { position: relative; padding: 96px 0 72px; overflow: hidden; }
.bh .bh-cs-hero .bh-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 56px;
  align-items: center;
}
.bh .bh-cs-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 26px;
}
.bh .bh-cs-eyebrow i { width: 8px; height: 8px; border-radius: 50%; background: var(--violet); box-shadow: 0 0 0 4px rgba(64, 56, 216, 0.14); }
.bh .bh-cs-eyebrow em { font-style: normal; color: var(--ink); }
.bh .bh-cs-hero h1 { max-width: 12ch; }
.bh .bh-cs-hero .bh-lede { margin-top: 26px; max-width: 58ch; }
.bh .bh-cs-hero-text { margin-top: 18px; max-width: 58ch; color: var(--ink); font-size: 16.5px; line-height: 1.65; }

.bh .bh-cs-proof { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 40px; }
.bh .bh-cs-proof div { border: 1px solid var(--line-soft); border-radius: 18px; padding: 18px 18px 16px; background: var(--paper); box-shadow: 0 24px 48px -40px rgba(20, 18, 58, 0.28); }
.bh .bh-cs-proof b { display: block; font-weight: 700; font-size: clamp(26px, 2.4vw, 34px); letter-spacing: -0.03em; line-height: 1; }
.bh .bh-cs-proof b em { font-style: normal; color: var(--violet); }
.bh .bh-cs-proof span { display: block; margin-top: 8px; font-size: 13px; color: var(--muted); line-height: 1.4; }

.bh /* deck mockup: cover in front, .bh a content slide behind */
.bh-cs-deck { position: relative; aspect-ratio: 16 / 12.5; perspective: 1600px; }
.bh .bh-cs-deck img {
  position: absolute;
  width: 92%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid rgba(20, 18, 58, 0.12);
  box-shadow: 0 60px 90px -50px rgba(12, 16, 72, 0.7), 0 18px 40px -24px rgba(12, 16, 72, 0.35);
  transition: transform 1.2s var(--ease);
}
.bh .bh-cs-deck .bh-cs-deck-back { top: 0; right: 0; transform: rotateY(-14deg) rotateX(6deg) translateZ(-120px); opacity: 0.9; }
.bh .bh-cs-deck .bh-cs-deck-front { bottom: 0; left: 0; transform: rotateY(-10deg) rotateX(4deg); }
.bh .bh-cs-deck:hover .bh-cs-deck-front { transform: rotateY(-6deg) rotateX(2deg) translateY(-6px); }
.bh .bh-cs-deck-glow {
  position: absolute; inset: 10% -10% -10% 10%;
  background: radial-gradient(closest-side, rgba(64, 56, 216, 0.28), transparent 70%);
  filter: blur(30px); z-index: -1;
}

.bh /* ---------- sections ---------- */
.bh-cs-section { padding: 110px 0; }
.bh .bh-cs-section-tint { background: var(--bg-tint); }
.bh .bh-cs-section .bh-section-head { margin-bottom: 52px; }

.bh /* ---------- brief ---------- */
.bh-cs-brief { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); gap: 48px; align-items: start; }
.bh .bh-cs-brief-copy p { font-size: 17px; line-height: 1.7; color: var(--ink); }
.bh .bh-cs-brief-copy p + p { margin-top: 18px; }
.bh .bh-cs-roles { display: grid; gap: 14px; }
.bh .bh-cs-role { border: 1px solid var(--line-soft); border-radius: 22px; background: var(--paper); padding: 24px 26px; box-shadow: 0 24px 48px -40px rgba(20, 18, 58, 0.28); }
.bh .bh-cs-role h3 { font-size: 12px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.bh .bh-cs-role.bh-is-ours h3 { color: var(--violet); }
.bh .bh-cs-role li { position: relative; padding-left: 22px; font-size: 15.5px; line-height: 1.5; }
.bh .bh-cs-role li + li { margin-top: 10px; }
.bh .bh-cs-role li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 10px; height: 2px; background: var(--muted); }
.bh .bh-cs-role.bh-is-ours li::before { background: var(--violet); }

.bh /* ---------- deck strip ---------- */
.bh-cs-strip-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 36px; }
.bh .bh-cs-strip-nav { display: flex; gap: 8px; }
.bh .bh-cs-strip-nav button {
  width: 48px; height: 48px; border-radius: 50%;
  border: 1px solid var(--line); background: var(--paper); color: var(--ink);
  display: grid; place-items: center; cursor: pointer;
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease), transform 0.4s var(--ease);
}
.bh .bh-cs-strip-nav button:hover { background: var(--ink); color: #fff; transform: translateY(-1px); }
.bh .bh-cs-strip-nav button svg { width: 16px; height: 16px; }
.bh .bh-cs-strip-nav button:disabled { opacity: 0.35; cursor: default; transform: none; background: var(--paper); color: var(--ink); }

.bh .bh-cs-strip {
  display: flex; gap: 22px;
  overflow-x: auto; overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: 24px;
  scrollbar-width: none;
  padding: 8px 0 28px;
  margin: 0 -24px; padding-left: 24px; padding-right: 24px;
  cursor: grab;
}
.bh .bh-cs-strip::-webkit-scrollbar { display: none; }
.bh .bh-cs-strip.bh-is-dragging { cursor: grabbing; scroll-snap-type: none; }
.bh .bh-cs-slide {
  flex: 0 0 min(760px, 82vw);
  scroll-snap-align: start;
  user-select: none;
}
.bh .bh-cs-slide figure { margin: 0; }
.bh .bh-cs-slide-frame {
  position: relative; display: block; width: 100%;
  border-radius: 16px; overflow: hidden;
  border: 1px solid rgba(20, 18, 58, 0.12);
  background: var(--navy);
  box-shadow: 0 40px 70px -46px rgba(12, 16, 72, 0.6);
  cursor: zoom-in;
  transition: transform 0.7s var(--ease), box-shadow 0.7s var(--ease);
}
.bh .bh-cs-slide-frame img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; display: block; pointer-events: none; }
.bh .bh-cs-slide-frame:hover { transform: translateY(-4px); box-shadow: 0 48px 80px -46px rgba(64, 56, 216, 0.55); }
.bh .bh-cs-slide-num {
  position: absolute; top: 14px; left: 14px;
  font-size: 12px; font-weight: 500; letter-spacing: 0.06em;
  padding: 6px 10px; border-radius: 9999px;
  color: #fff; background: rgba(12, 16, 72, 0.55); border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(6px);
}
.bh .bh-cs-slide figcaption { margin-top: 14px; font-size: 14.5px; line-height: 1.5; color: var(--muted); max-width: 60ch; }
.bh .bh-cs-slide figcaption b { color: var(--ink); font-weight: 600; }

.bh /* ---------- lightbox ---------- */
.bh-cs-lightbox {
  position: fixed; inset: 0; z-index: 9999;
  display: none; align-items: center; justify-content: center;
  padding: 48px 24px 32px;
  background: rgba(8, 9, 30, 0.9);
  backdrop-filter: blur(10px);
}
.bh .bh-cs-lightbox.bh-is-open { display: flex; }
.bh .bh-cs-lightbox-inner { position: relative; width: min(1400px, 100%); }
.bh .bh-cs-lightbox img { width: 100%; height: auto; max-height: calc(100vh - 140px); aspect-ratio: 16 / 9; object-fit: contain; border-radius: 12px; background: #000; box-shadow: 0 60px 120px -40px rgba(0, 0, 0, 0.8); }
.bh .bh-cs-lightbox figcaption { margin-top: 16px; color: rgba(255, 255, 255, 0.78); font-size: 15px; line-height: 1.5; text-align: center; }
.bh .bh-cs-lightbox figcaption b { color: #fff; font-weight: 600; }
.bh .bh-cs-lightbox button {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 52px; height: 52px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.08); color: #fff; display: grid; place-items: center; cursor: pointer;
  transition: background-color 0.3s var(--ease);
}
.bh .bh-cs-lightbox button:hover { background: rgba(255, 255, 255, 0.2); }
.bh .bh-cs-lightbox button svg { width: 18px; height: 18px; }
.bh .bh-cs-lightbox .bh-cs-lb-prev { left: -68px; }
.bh .bh-cs-lightbox .bh-cs-lb-next { right: -68px; }
.bh .bh-cs-lightbox .bh-cs-lb-close { top: -12px; right: 0; transform: translateY(-100%); width: 44px; height: 44px; }
.bh .bh-cs-lightbox .bh-cs-lb-counter { position: absolute; top: -12px; left: 0; transform: translateY(-100%); line-height: 44px; color: rgba(255, 255, 255, 0.7); font-size: 13px; letter-spacing: 0.06em; }

.bh /* ---------- three stories ---------- */
.bh-cs-stories { display: grid; gap: 16px; }
.bh .bh-cs-story {
  display: grid; grid-template-columns: minmax(0, 0.38fr) minmax(0, 0.62fr); gap: 40px; align-items: start;
  border: 1px solid var(--line-soft); border-radius: 26px; background: var(--paper);
  padding: 40px 44px; box-shadow: 0 30px 60px -50px rgba(20, 18, 58, 0.35);
}
.bh .bh-cs-story-num b { display: block; font-weight: 700; font-size: clamp(46px, 5.6vw, 76px); letter-spacing: -0.04em; line-height: 0.95; color: var(--violet); }
.bh .bh-cs-story-num span { display: block; margin-top: 12px; font-size: 14px; color: var(--muted); line-height: 1.45; max-width: 24ch; }
.bh .bh-cs-story h3 { font-size: clamp(22px, 2.2vw, 28px); font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; margin-bottom: 14px; }
.bh .bh-cs-story p { font-size: 16.5px; line-height: 1.7; color: var(--ink); }
.bh .bh-cs-story p + p { margin-top: 12px; }
.bh .bh-cs-quote {
  position: relative; padding: 40px 44px 40px 84px; border-radius: 26px;
  background: var(--navy); color: #fff; overflow: hidden;
}
.bh .bh-cs-quote::before { content: "\201C"; position: absolute; left: 34px; top: 22px; font-size: 96px; line-height: 1; font-weight: 700; color: var(--lavender); opacity: 0.9; }
.bh .bh-cs-quote p { font-size: clamp(20px, 2vw, 26px); font-weight: 500; letter-spacing: -0.015em; line-height: 1.35; max-width: 34ch; }
.bh .bh-cs-quote footer { margin-top: 18px; font-size: 14px; color: rgba(255, 255, 255, 0.7); }
.bh .bh-cs-quote-aurora { position: absolute; right: -12%; top: -40%; width: 60%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(closest-side, rgba(122, 108, 255, 0.5), transparent 70%); filter: blur(30px); }

.bh /* ---------- sectors ---------- */
.bh-cs-frameworks { display: grid; gap: 64px; }
.bh .bh-cs-framework-head { display: flex; align-items: baseline; gap: 18px; margin-bottom: 24px; }
.bh .bh-cs-framework-head .bh-idx { font-size: 13px; font-weight: 500; letter-spacing: 0.08em; color: var(--violet); }
.bh .bh-cs-framework-head h3 { font-size: clamp(22px, 2.4vw, 30px); font-weight: 700; letter-spacing: -0.02em; }
.bh .bh-cs-framework-head p { margin-left: auto; max-width: 52ch; font-size: 15px; color: var(--muted); line-height: 1.55; }
.bh .bh-cs-taxonomy { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.bh .bh-cs-seg { border: 1px solid var(--line-soft); border-radius: 18px; background: var(--paper); padding: 18px 20px; min-height: 96px; display: flex; flex-direction: column; justify-content: center; box-shadow: 0 24px 48px -44px rgba(20, 18, 58, 0.3); }
.bh .bh-cs-seg h4 { font-size: 14px; font-weight: 600; letter-spacing: 0.02em; text-transform: uppercase; }
.bh .bh-cs-seg ul { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 6px; }
.bh .bh-cs-seg li { font-size: 12.5px; line-height: 1.2; padding: 5px 9px; border-radius: 9999px; background: var(--bg-tint); color: var(--muted); border: 1px solid var(--line-soft); }
.bh .bh-cs-seg.bh-is-wide { grid-column: span 2; }

.bh .bh-cs-chain { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px; align-items: center; }
.bh .bh-cs-chain-copy p { font-size: 16.5px; line-height: 1.7; }
.bh .bh-cs-chain-copy p + p { margin-top: 12px; }
.bh .bh-cs-matrix { margin-top: 26px; width: 100%; border-collapse: separate; border-spacing: 6px; }
.bh .bh-cs-matrix-wrap { overflow-x: auto; margin: 0 -4px; padding: 0 4px; }
.bh .bh-cs-matrix th, .bh .bh-cs-matrix td { text-align: left; font-size: 14px; padding: 12px 14px; border-radius: 12px; }
.bh .bh-cs-matrix thead th { font-size: 12px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); padding-bottom: 4px; }
.bh .bh-cs-matrix tbody th { font-size: 12px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--violet); white-space: nowrap; }
.bh .bh-cs-matrix td { background: var(--paper); border: 1px solid var(--line-soft); font-weight: 600; }
.bh .bh-cs-chain-art { border-radius: 16px; overflow: hidden; border: 1px solid rgba(20, 18, 58, 0.12); box-shadow: 0 40px 70px -46px rgba(12, 16, 72, 0.6); background: var(--navy); cursor: zoom-in; }
.bh .bh-cs-chain-art img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; display: block; }

.bh /* ---------- horizons ---------- */
.bh-cs-horizons { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; position: relative; }
.bh .bh-cs-horizon { position: relative; border: 1px solid var(--line-soft); border-radius: 22px; background: var(--paper); padding: 28px 28px 30px; box-shadow: 0 30px 60px -50px rgba(20, 18, 58, 0.35); }
.bh .bh-cs-horizon .bh-cs-year { display: inline-block; font-weight: 700; font-size: clamp(30px, 3.2vw, 44px); letter-spacing: -0.03em; line-height: 1; color: var(--violet); }
.bh .bh-cs-horizon .bh-cs-year small { display: block; font-size: 12px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.bh .bh-cs-horizon h3 { margin-top: 16px; font-size: 19px; font-weight: 700; letter-spacing: -0.015em; line-height: 1.25; }
.bh .bh-cs-horizon ul { margin-top: 14px; }
.bh .bh-cs-horizon li { position: relative; padding-left: 20px; font-size: 15px; line-height: 1.5; color: var(--ink); }
.bh .bh-cs-horizon li + li { margin-top: 8px; }
.bh .bh-cs-horizon li::before { content: ""; position: absolute; left: 0; top: 0.65em; width: 9px; height: 2px; background: var(--violet); }
.bh .bh-cs-hype { margin-top: 56px; display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 40px; align-items: center; }
.bh .bh-cs-hype p { font-size: 16.5px; line-height: 1.7; }
.bh .bh-cs-hype .bh-cs-chain-art { margin: 0; }

.bh /* ---------- methodology ---------- */
.bh-cs-method { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.bh .bh-cs-method div { border: 1px solid var(--line-soft); border-radius: 22px; background: var(--paper); padding: 26px 26px 28px; box-shadow: 0 30px 60px -50px rgba(20, 18, 58, 0.35); }
.bh .bh-cs-method .bh-idx { font-size: 13px; font-weight: 500; letter-spacing: 0.08em; color: var(--violet); }
.bh .bh-cs-method h3 { margin-top: 14px; font-size: 18px; font-weight: 700; letter-spacing: -0.015em; line-height: 1.25; }
.bh .bh-cs-method p { margin-top: 12px; font-size: 14.5px; line-height: 1.6; color: var(--muted); }

.bh /* ---------- related ---------- */
.bh-cs-related { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 40px; align-items: start; }
.bh .bh-cs-related-copy p { font-size: 16.5px; line-height: 1.7; }
.bh .bh-cs-related-copy p + p { margin-top: 14px; }
.bh .bh-cs-related-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.bh .bh-cs-rel {
  display: block; border-radius: 20px; overflow: hidden; background: var(--paper);
  border: 1px solid var(--line-soft); box-shadow: 0 30px 60px -50px rgba(20, 18, 58, 0.35);
  transition: transform 0.7s var(--ease), box-shadow 0.7s var(--ease);
}
.bh .bh-cs-rel:hover { transform: translateY(-4px); box-shadow: 0 48px 80px -46px rgba(64, 56, 216, 0.5); }
.bh .bh-cs-rel img { width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover; display: block; }
.bh .bh-cs-rel div { padding: 18px 20px 20px; }
.bh .bh-cs-rel h3 { font-size: 16.5px; font-weight: 600; letter-spacing: -0.01em; line-height: 1.3; }
.bh .bh-cs-rel-more { display: inline-flex; align-items: center; gap: 10px; margin-top: 12px; font-size: 13.5px; color: var(--violet); font-weight: 500; }
.bh .bh-cs-rel .bh-arrow-key { width: 26px; height: 26px; border-radius: 8px; flex: 0 0 auto; }
.bh .bh-cs-rel .bh-arrow-key svg { width: 12px; height: 12px; }

.bh /* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .cs-taxonomy { grid-template-columns: repeat(3, 1fr); }
  .cs-method { grid-template-columns: repeat(2, 1fr); }
  .cs-lightbox .cs-lb-prev { left: 8px; }
  .cs-lightbox .cs-lb-next { right: 8px; }
}
@media (max-width: 900px) {
  .bh .bh-cs-hero { padding: 64px 0 56px; }
  .bh .bh-cs-hero .bh-wrap { grid-template-columns: 1fr; gap: 40px; }
  .bh .bh-cs-deck { max-width: 560px; }
  .bh .bh-cs-proof { grid-template-columns: repeat(2, 1fr); }
  .bh .bh-cs-brief { grid-template-columns: 1fr; gap: 28px; }
  .bh .bh-cs-story { grid-template-columns: 1fr; gap: 20px; padding: 28px 26px; }
  .bh .bh-cs-story-num span { max-width: none; }
  .bh .bh-cs-quote { padding: 34px 26px 34px 30px; }
  .bh .bh-cs-quote::before { position: static; display: block; font-size: 64px; margin-bottom: -16px; }
  .bh .bh-cs-framework-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .bh .bh-cs-framework-head p { margin-left: 0; }
  .bh .bh-cs-taxonomy { grid-template-columns: repeat(2, 1fr); }
  .bh .bh-cs-seg.bh-is-wide { grid-column: span 2; }
  .bh .bh-cs-chain, .bh .bh-cs-hype, .bh .bh-cs-related { grid-template-columns: 1fr; gap: 24px; }
  .bh .bh-cs-horizons { grid-template-columns: 1fr; }
  .bh .bh-cs-section { padding: 80px 0; }
}

@media (max-width: 640px) {
  .bh .bh-cs-strip { margin: 0 -20px; padding-left: 20px; padding-right: 20px; scroll-padding-inline: 20px; }
}

@media (max-width: 560px) {
  .bh .bh-cs-proof { grid-template-columns: 1fr 1fr; gap: 10px; }
  .bh .bh-cs-proof div { padding: 14px 14px 12px; }
  .bh .bh-cs-taxonomy { grid-template-columns: 1fr; gap: 8px; }
  .bh .bh-cs-seg.bh-is-wide { grid-column: auto; }
  .bh .bh-cs-seg { min-height: 0; padding: 14px 16px; }
  .bh .bh-cs-method { grid-template-columns: 1fr; }
  .bh .bh-cs-related-cards { grid-template-columns: 1fr; }
  .bh .bh-cs-strip-head { flex-direction: column; align-items: flex-start; }
  .bh .bh-cs-slide { flex-basis: 86vw; }
  .bh .bh-cs-matrix { border-spacing: 4px; margin-top: 18px; }
  .bh .bh-cs-matrix th, .bh .bh-cs-matrix td { padding: 8px 7px; font-size: 12px; border-radius: 9px; }
  .bh .bh-cs-matrix thead th, .bh .bh-cs-matrix tbody th { font-size: 10.5px; letter-spacing: 0.05em; white-space: normal; }
  .bh .bh-cs-lightbox { padding: 64px 8px 24px; }
  .bh .bh-cs-lightbox button { width: 40px; height: 40px; }
}