/* This navigation is loaded by the forcing article only. */
.forcing-toc,
.forcing-toc * {
  box-sizing: border-box;
}

.forcing-toc {
  position: fixed;
  z-index: 50;
  pointer-events: none;
  color: #475569;
  font: 13px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.forcing-toc [hidden] {
  display: none !important;
}

.forcing-toc__panel {
  display: flex;
  pointer-events: auto;
  flex-direction: column;
  max-height: calc(100vh - var(--forcing-toc-top, 24px) - 24px);
  max-height: calc(100dvh - var(--forcing-toc-top, 24px) - 24px);
  overflow: hidden;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgb(15 23 42 / 5%);
}

.forcing-toc__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid #edf1f5;
}

.forcing-toc__title {
  color: #334155;
  font-size: 14px;
  font-weight: 600;
}

.forcing-toc button {
  margin: 0;
  border: 0;
  font: inherit;
  cursor: pointer;
}

.forcing-toc__close {
  flex: none;
  min-height: 32px;
  padding: 4px 8px;
  color: #64748b;
  background: #f1f5f9;
  border-radius: 6px;
}

.forcing-toc__scroll {
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: #cbd5e1 transparent;
  padding: 8px 10px;
}

.forcing-toc__list,
.forcing-toc__list li {
  margin: 0;
  padding: 0;
  list-style: none;
}

.forcing-toc__link {
  display: block;
  margin: 2px 0;
  padding: 6px 8px;
  border-left: 2px solid transparent;
  border-radius: 0 5px 5px 0;
  color: #64748b;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.forcing-toc__link--level-1 {
  margin-top: 12px;
  color: #334155;
  font-weight: 650;
}

.forcing-toc__list li:first-child .forcing-toc__link {
  margin-top: 0;
}

.forcing-toc__link--level-2 {
  padding-left: 16px;
  color: #475569;
  font-weight: 550;
}

.forcing-toc__link--level-3 {
  padding-left: 26px;
  font-size: 12px;
}

.forcing-toc__link:hover {
  color: #1e40af;
  background: #f8fafc;
  text-decoration: none;
}

.forcing-toc__link[aria-current="location"] {
  color: #1d4ed8;
  border-left-color: #2563eb;
  background: #eff6ff;
}

.forcing-toc__footer {
  padding: 10px 16px;
  border-top: 1px solid #edf1f5;
}

.forcing-toc__footer a {
  color: #64748b;
  font-size: 12px;
  text-decoration: none;
}

.forcing-toc__toggle {
  display: flex;
  pointer-events: auto;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 14px;
  color: #1e40af;
  background: #fff;
  border: 1px solid #dbe3ef !important;
  border-radius: 10px;
  box-shadow: 0 3px 14px rgb(15 23 42 / 9%);
}

.forcing-toc :is(a, button, nav):focus-visible {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
}

.forcing-toc[data-mode="compact"] {
  right: 18px;
  bottom: max(18px, env(safe-area-inset-bottom));
  width: min(360px, calc(100vw - 36px));
}

.forcing-toc[data-mode="compact"] .forcing-toc__panel {
  max-height: min(70vh, 620px);
  max-height: min(70dvh, 620px);
  box-shadow: 0 8px 32px rgb(15 23 42 / 14%);
}

.forcing-toc[data-mode="compact"] .forcing-toc__toggle {
  margin-left: auto;
}

[data-forcing-section] {
  scroll-margin-top: var(--forcing-section-offset, 32px);
}

@media print {
  .forcing-toc {
    display: none !important;
  }
}