/* Business Culture shared scale.
   Rail / ticks follow the approved brandbook and bs2027-audit report.
   This component owns only the left corridor; existing hero and content stay intact. */
body { position: relative; }
.bc-page-rail {
  --rail-line: rgba(201, 162, 39, .48);
  --rail-x: 18px;
  position: absolute;
  z-index: 7;
  left: var(--rail-x);
  width: 1px;
  background: var(--rail-line);
  pointer-events: none;
  user-select: none;
}
.bc-page-rail__ticks {
  position: absolute;
  inset: 0 auto 0 1px;
  width: 7px;
  background: repeating-linear-gradient(to bottom, var(--rail-line) 0 1px, transparent 1px 12px);
  opacity: .72;
}
.bc-page-rail__ticks::before,
.bc-page-rail__ticks::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  background-repeat: repeat-y;
}
.bc-page-rail__ticks::before {
  width: 13px;
  background-image: repeating-linear-gradient(to bottom, var(--rail-line) 0 1px, transparent 1px 48px);
}
.bc-page-rail__ticks::after {
  width: 22px;
  background-image: repeating-linear-gradient(to bottom, var(--rail-line) 0 1px, transparent 1px 144px);
}
.bc-page-rail__node {
  position: absolute;
  left: 0;
  display: flex;
  align-items: center;
  height: 20px;
  color: #c9a227;
  opacity: .55;
  transform: translateY(-50%);
  transition: color .28s, opacity .28s;
}
.bc-page-rail__node i {
  width: 8px;
  height: 8px;
  margin-left: -3px;
  border: 1px solid currentColor;
  background: #080808;
}
.bc-page-rail__node b {
  margin-left: 4px;
  font: 500 10px/1 var(--body);
  letter-spacing: .02em;
}
.bc-page-rail__node.is-current { color: #2ecc71; opacity: 1; }
.bc-page-rail__node.is-current i { background: currentColor; }
.bc-page-rail__node.is-light { color: #876709; }
.bc-page-rail__node.is-light i { background: #f2efe6; }
.bc-page-rail__node.is-light.is-current { color: #148947; }
.bc-page-rail__node.is-light.is-current i { background: currentColor; }
@media (max-width: 1190px) {
  .bc-page-rail { --rail-x: 8px; }
  .bc-page-rail__ticks { width: 5px; }
  .bc-page-rail__ticks::before { width: 9px; }
  .bc-page-rail__ticks::after { width: 14px; }
}
@media (max-width: 700px) {
  .bc-page-rail { --rail-x: 6px; }
  .bc-page-rail__ticks { width: 3px; }
  .bc-page-rail__ticks::before { width: 6px; }
  .bc-page-rail__ticks::after { width: 9px; }
  /* Shared content axis provides real space for the mobile scale and numbers. */
  .container { width: calc(100% - 56px); margin-left: 36px; margin-right: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  .bc-page-rail__node { transition: none; }
}
@media print { .bc-page-rail { display: none; } }