/* Shared collapsible navigation for each public inner page. */
.php-site .project-navigation-dock {
  width: 176px;
  max-width: 100%;
  margin: 16px 0 24px;
  background: var(--ui-surface);
  border: 1px solid var(--ui-line);
  border-radius: 14px;
  box-shadow: 0 6px 28px #14264214;
}
.project-navigation-ready .php-site .project-navigation-dock {
  position: fixed;
  z-index: 45;
  top: calc(50% + var(--project-header-offset, 0px) / 2);
  right: max(16px, calc((100vw - 1420px) / 2 + 16px));
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  max-height: calc(100dvh - var(--project-header-offset, 0px) - 40px);
  margin: 0;
}
.project-navigation-ready .php-site .project-navigation-dock.is-collapsed { width: auto; }
.php-site .project-navigation-toggle {
  display: flex;
  flex: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  min-height: 46px;
  padding: 10px 14px;
  border: 0;
  border-radius: 13px;
  background: var(--ui-surface);
  color: var(--ui-accent);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.php-site .project-navigation-toggle[aria-expanded=true] {
  border-bottom: 1px solid var(--ui-line);
  border-radius: 13px 13px 0 0;
  color: var(--ui-muted);
}
.php-site #main .project-reader-nav {
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
  gap: 4px !important;
  min-height: 0;
  width: 100%;
  margin: 0;
  padding: 6px;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  border: 0;
  background: transparent;
}
.php-site #main .project-reader-nav > a {
  display: flex;
  flex: none;
  align-items: center;
  justify-content: flex-start;
  min-height: 44px;
  width: 100%;
  padding: 10px 14px;
  border-radius: 9px;
  background: transparent;
  color: var(--ui-muted) !important;
  font-size: 14px;
  line-height: 1.5;
  white-space: normal;
  overflow-wrap: anywhere;
  text-decoration: none;
}
.php-site #main .project-reader-nav .page-navigation-divider {
  display: block;
  margin: 8px 0 0;
  padding: 10px 14px 4px;
  border-top: 1px solid var(--ui-line);
  color: var(--ui-muted);
  font-size: 12px;
}
.php-site #main [data-page-navigation-source] { display: none !important; }
.php-site #main .project-reader-nav > a[hidden] { display: none !important; }
.php-site #main .page-navigation-layout { grid-template-columns: minmax(0, 1fr); }
.php-site #main .project-reader-nav > a:hover,
.php-site .project-navigation-toggle:hover { color: var(--ui-accent) !important; background: var(--ui-soft); }
.php-site #main .project-reader-nav > a[aria-current] {
  color: var(--ui-button-ink) !important;
  background: var(--ui-button-fill);
  font-weight: 650 !important;
}
.php-site .project-navigation-dock :is(a,button):focus-visible {
  outline: 2px solid var(--ui-accent);
  outline-offset: -3px;
}
html.project-navigation-ready { scroll-padding-top: var(--project-anchor-offset, 24px); }
.project-navigation-ready .php-site #main [id] { scroll-margin-top: 0; }
.project-navigation-ready .php-site .guide-toc { top: var(--project-anchor-offset, 24px); }
@media (min-width: 1100px) {
  .project-navigation-expanded .php-site .page-shell { padding-right: 232px; }
}
@media (max-width: 1099px) {
  .project-navigation-ready .php-site .project-navigation-dock {
    top: calc(50% + (var(--project-header-offset, 0px) - var(--project-bottom-offset, 0px)) / 2);
    right: max(12px, env(safe-area-inset-right, 0px));
    bottom: auto;
    transform: translateY(-50%);
    width: 192px;
    max-height: calc(100dvh - var(--project-header-offset, 0px) - var(--project-bottom-offset, 0px) - 32px);
  }
  .project-navigation-ready .php-site .project-navigation-dock.is-collapsed {
    right: 0;
    width: calc(36px + env(safe-area-inset-right, 0px));
    border-right: 0;
    border-radius: 12px 0 0 12px;
    box-shadow: 0 3px 14px #14264210;
  }
  .php-site .project-navigation-dock.is-collapsed .project-navigation-toggle {
    min-height: 76px;
    padding: 10px calc(6px + env(safe-area-inset-right, 0px)) 10px 6px;
    border-radius: 11px 0 0 11px;
  }
  .php-site .project-navigation-dock.is-collapsed .project-navigation-toggle svg { display: none; }
  .php-site .project-navigation-dock.is-collapsed .project-navigation-toggle span {
    writing-mode: vertical-rl;
    letter-spacing: 4px;
  }
  .project-navigation-ready:not(.project-navigation-expanded) .php-site .page-shell {
    padding-right: calc(52px + env(safe-area-inset-right, 0px));
  }
}
@media (max-width: 760px) {
  .project-navigation-ready .php-site .project-navigation-dock:not(.is-collapsed) .project-navigation-toggle {
    position: absolute;
    left: -40px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    min-height: 108px;
    padding: 12px 8px;
    border: 1px solid var(--ui-line);
    border-right: 0;
    border-radius: 12px 0 0 12px;
    box-shadow: -4px 4px 14px #1426420a;
  }
  .php-site .project-navigation-dock:not(.is-collapsed) .project-navigation-toggle svg { display: none; }
  .php-site .project-navigation-dock:not(.is-collapsed) .project-navigation-toggle span {
    writing-mode: vertical-rl;
    letter-spacing: 3px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html.project-navigation-ready { scroll-behavior: auto !important; }
}
@media print {
  .php-site .project-navigation-dock { display: none !important; }
  .project-navigation-expanded .php-site .page-shell { padding-right: 36px; }
}