/* Shared back-to-hub link
   Two variants:
   - .back-to-hub       — floating top-left (for full-bleed pages)
   - .sidebar-back-link — inline inside dark sidebar (for sidebar apps)
*/

.back-to-hub {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 80;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: rgba(15, 23, 42, 0.92);
  color: #fff;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(6px);
  text-decoration: none;
  transition: all 0.15s;
  opacity: 0.85;
}
.back-to-hub:hover {
  opacity: 1;
  transform: translateX(-2px);
  text-decoration: none;
  color: #fff;
}

/* Inline variant for dark sidebar apps */
.sidebar-hub-row {
  padding: 12px 20px 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.sidebar-back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.55);
  padding: 4px 10px 4px 6px;
  border-radius: 6px;
  transition: all 0.15s;
  text-decoration: none;
  letter-spacing: 0.02em;
}
.sidebar-back-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.95);
  text-decoration: none;
  transform: translateX(-2px);
}