/* ─── Blog: spatial-computing (.spatial-depth-stack, .depth-philosophy) ─── */
.spatial-depth-stack {
  margin: 40px 0 32px 0;
  padding: 18px 22px 6px 22px;
  border: 1px solid var(--border-soft);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(255, 138, 76, 0.04) 0%, transparent 65%), var(--ink-700);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
}
.spatial-depth-stack-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ember-300);
  padding: 6px 0 18px 0;
  border-bottom: 1px solid var(--border-soft);
  margin-bottom: 4px;
}
.spatial-depth-stack .depth-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) 14px;
  gap: 28px;
  align-items: start;
  padding: 22px 0;
  border-bottom: 1px solid var(--border-soft);
}
.spatial-depth-stack .depth-row:last-child { border-bottom: none; }
.spatial-depth-stack .depth-label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 4px;
}
.spatial-depth-stack .depth-zone {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-primary);
  font-weight: 600;
}
.spatial-depth-stack .depth-distance {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-tertiary);
}
.spatial-depth-stack .depth-content h4 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--fg-primary);
  margin: 0 0 6px 0;
  line-height: 1.35;
}
.spatial-depth-stack .depth-content p {
  font-size: 14.5px;
  color: var(--fg-secondary);
  line-height: 1.6;
  margin: 0;
}
.spatial-depth-stack .depth-z {
  position: relative;
  align-self: stretch;
  display: flex;
  justify-content: center;
}
.spatial-depth-stack .depth-z-bar {
  display: block;
  width: 2px;
  border-radius: 2px;
  margin-top: 4px;
}
.spatial-depth-stack .depth-z-bar-1 { height: 70%; background: var(--ember-300); opacity: 0.95; }
.spatial-depth-stack .depth-z-bar-2 { height: 58%; background: var(--ember-400); opacity: 0.78; }
.spatial-depth-stack .depth-z-bar-3 { height: 44%; background: var(--ember-500); opacity: 0.55; }
.spatial-depth-stack .depth-z-bar-4 { height: 30%; background: var(--ember-500); opacity: 0.32; }
.spatial-depth-stack .depth-z-bar-5 { height: 16%; background: var(--ember-500); opacity: 0.18; }
.spatial-depth-stack .depth-row-near .depth-content h4 { color: var(--ember-300); }
.spatial-depth-stack .depth-row-far .depth-content h4 { color: var(--fg-secondary); }

.depth-philosophy {
  margin: 28px 0 40px 0;
  padding: 22px 26px 20px 26px;
  border: 1px solid var(--border-soft);
  border-left: 2px solid var(--ember-400);
  border-radius: 14px;
  background: var(--ink-700);
}
.depth-philosophy blockquote {
  margin: 0;
  padding: 0;
  border: none;
  background: none;
}
.depth-philosophy blockquote p {
  margin: 0;
  font-size: 18px;
  line-height: 1.5;
  color: var(--fg-primary);
  font-weight: 500;
  letter-spacing: -0.005em;
  font-style: italic;
}
.depth-philosophy figcaption {
  display: block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-tertiary);
}