/* Shared hierarchical floating section navigation (L1 mega / L2 inner cards). */
.floating-section-nav {
  position: fixed;
  right: 38px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1190;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 220px;
  max-height: calc(100vh - 100px);
  overflow: auto;
  scrollbar-width: thin;
  padding: 10px;
  border: 1px solid #cfe0f2;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 28px rgba(15, 76, 129, 0.18);
  backdrop-filter: blur(8px);
}

.floating-nav-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-bottom: 2px;
}

.floating-nav-group + .floating-nav-group {
  margin-top: 4px;
  padding-top: 8px;
  border-top: 1px solid #e8f0f8;
}

.floating-nav-sublist {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 4px 0 2px 12px;
  margin-left: 4px;
  border-left: 2px solid #cfe0f2;
}

.floating-section-nav .floating-nav-parent {
  min-height: 36px;
  padding: 8px 10px;
  border: 1px solid #b8d4ef;
  border-left: 4px solid #0f4c81;
  border-radius: 10px;
  background: linear-gradient(180deg, #f3f9ff 0%, #e8f3fc 100%);
  color: #0f4c81;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.25;
  text-align: left;
  letter-spacing: 0.01em;
  box-shadow: 0 2px 8px rgba(15, 76, 129, 0.08);
}

.floating-section-nav .floating-nav-sub {
  min-height: 28px;
  padding: 5px 8px 5px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: #475569;
  font-size: 10px;
  font-weight: 400;
  line-height: 1.3;
  text-align: left;
  box-shadow: none;
}

.floating-section-nav button {
  width: 100%;
  margin: 0;
  display: block;
  text-align: left;
  cursor: pointer;
  transition: transform 0.15s ease, background-color 0.15s ease, color 0.15s ease,
    border-color 0.15s ease, box-shadow 0.15s ease;
}

.floating-section-nav .floating-nav-parent:hover,
.floating-section-nav .floating-nav-parent:focus-visible {
  transform: translateY(-1px);
  outline: none;
  background: linear-gradient(180deg, #e8f3fc 0%, #dcecff 100%);
  color: #0b3d68;
  border-color: #8fb8de;
  border-left-color: #0b3d68;
  box-shadow: 0 6px 14px rgba(15, 76, 129, 0.16);
}

.floating-section-nav .floating-nav-sub:hover,
.floating-section-nav .floating-nav-sub:focus-visible {
  transform: none;
  outline: none;
  background: #f1f7fd;
  color: #0f4c81;
  border-color: #dbe8f6;
  box-shadow: none;
}

.floating-section-nav .floating-pdf-btn {
  background: #0f4c81;
  color: #fff;
  border-color: #0f4c81;
  text-align: left;
}

.floating-section-nav .floating-pdf-btn:hover,
.floating-section-nav .floating-pdf-btn:focus-visible {
  background: #0b3d68;
}

.floating-section-nav.is-overlap-hidden {
  visibility: hidden;
  pointer-events: none;
  opacity: 0;
}

@media (max-width: 900px) {
  .floating-section-nav {
    right: 20px;
    top: 50%;
    width: 196px;
    max-height: calc(100vh - 88px);
    gap: 7px;
    padding: 8px;
    border-radius: 16px;
  }

  .floating-section-nav .floating-nav-parent {
    min-height: 34px;
    padding: 7px 9px;
    font-size: 11px;
  }

  .floating-section-nav .floating-nav-sub {
    min-height: 26px;
    padding: 4px 7px 4px 9px;
    font-size: 9px;
  }
}

@media (max-width: 560px) {
  .floating-section-nav {
    width: 104px;
    right: 12px;
  }

  .floating-section-nav .floating-nav-parent {
    font-size: 10px;
    padding: 6px 8px;
  }

  .floating-section-nav .floating-nav-sub {
    font-size: 9px;
    padding: 4px 6px 4px 8px;
  }
}

@media print {
  .floating-section-nav,
  .page-nav-controls {
    display: none !important;
  }
}

#toppoDirectPdfHost .floating-section-nav,
#toppoDirectPdfHost .page-nav-controls,
.toppo-direct-pdf-page .floating-section-nav,
.toppo-direct-pdf-page .page-nav-controls,
[data-pdf-export] .floating-section-nav,
[data-pdf-export] .page-nav-controls {
  display: none !important;
}