/* Shared rail chrome — toggle button, header, and the collapsed-state
   pinned button. Cart-specific bits stay in cart.css; category list
   styles live in categories.css. */

.rail-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--ink, #333);
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  transition: background 0.12s ease;
}

.rail-toggle:hover {
  background: color-mix(in oklch, var(--ink) 6%, transparent);
}

.rail-toggle:active { transform: scale(0.96); }

.rail-toggle .icon {
  width: 20px;
  height: 20px;
}

.rail-toggle__badge {
  position: absolute;
  top: -2px;
  right: -2px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: var(--ink);
  color: var(--surface);
  font-size: 11px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.rail-toggle__badge[hidden] { display: none; }

/* Rail header. Toggle button is the first (left rail) or last
   (right rail) child; gap lets the title / logo sit alongside. */
.rail-hd {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-bottom: 1px solid var(--border, #e5e5e5);
  flex-shrink: 0;
  box-sizing: border-box;
}

.rail-title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-dim, #666);
}