.rtbn-nav {
  --rtbn-container-bg: #fff;
  --rtbn-text-color: #333;
  --rtbn-link-color: #333;
  --rtbn-hover-color: #006ab5;
  --rtbn-hover-bg: #f4f7fa;
  --rtbn-active-color: #fff;
  --rtbn-active-bg: #006ab5;
  --rtbn-border-color: #d9e0e6;
  --rtbn-count-color: #333;
  --rtbn-count-bg: #ededed;
  --rtbn-icon-color: #006ab5;
  --rtbn-focus-color: #006ab5;
  --rtbn-font-family: inherit;
  --rtbn-font-size: 16px;
  --rtbn-font-size-tablet: 16px;
  --rtbn-font-size-mobile: 16px;
  --rtbn-font-weight: 500;
  --rtbn-line-height: 1.4;
  --rtbn-line-height-tablet: 1.4;
  --rtbn-line-height-mobile: 1.4;
  --rtbn-letter-spacing: 0;
  --rtbn-letter-spacing-tablet: 0;
  --rtbn-letter-spacing-mobile: 0;
  --rtbn-title-size: 20px;
  --rtbn-title-size-tablet: 20px;
  --rtbn-title-size-mobile: 20px;
  --rtbn-title-weight: 700;
  --rtbn-padding-y: 10px;
  --rtbn-padding-y-tablet: 10px;
  --rtbn-padding-y-mobile: 10px;
  --rtbn-padding-x: 12px;
  --rtbn-padding-x-tablet: 12px;
  --rtbn-padding-x-mobile: 12px;
  --rtbn-item-gap: 4px;
  --rtbn-item-gap-tablet: 4px;
  --rtbn-item-gap-mobile: 4px;
  --rtbn-indent: 18px;
  --rtbn-indent-tablet: 18px;
  --rtbn-indent-mobile: 18px;
  --rtbn-item-border-size: 1px;
  --rtbn-radius: 8px;
  --rtbn-radius-tablet: 8px;
  --rtbn-radius-mobile: 8px;
  --rtbn-container-pad: 0;
  --rtbn-container-pad-tablet: 0;
  --rtbn-container-pad-mobile: 0;
  --rtbn-container-radius: 10px;
  --rtbn-container-radius-tablet: 10px;
  --rtbn-container-radius-mobile: 10px;
  --rtbn-shadow: none;
  --rtbn-count-radius: 999px;
  --rtbn-count-min-width: 28px;
  --rtbn-count-min-width-tablet: 28px;
  --rtbn-count-min-width-mobile: 28px;
  --rtbn-icon-size: 18px;
  --rtbn-icon-size-tablet: 18px;
  --rtbn-icon-size-mobile: 18px;
  --rtbn-category-media-size: 24px;
  --rtbn-category-media-size-tablet: 24px;
  --rtbn-category-media-size-mobile: 24px;
  --rtbn-duration: 220ms;
  box-sizing: border-box;
  width: 100%;
  border: 0;
  border-style: none;
  outline: 0;
  padding: var(--rtbn-container-pad);
  color: var(--rtbn-text-color);
  background: var(--rtbn-container-bg);
  border-radius: var(--rtbn-container-radius);
  box-shadow: var(--rtbn-shadow);
  font-family: var(--rtbn-font-family);
  font-size: var(--rtbn-font-size);
  font-weight: var(--rtbn-font-weight);
  line-height: var(--rtbn-line-height);
  letter-spacing: var(--rtbn-letter-spacing);
}
.rtbn-nav *, .rtbn-nav *::before, .rtbn-nav *::after { box-sizing: border-box; }
.rtbn-nav > .rtbn-title {
  display: block !important;
  visibility: visible !important;
  opacity: 1 !important;
  width: auto !important;
  height: auto !important;
  margin: 0 0 14px !important;
  padding: 0 !important;
  color: var(--rtbn-text-color) !important;
  background: transparent !important;
  border: 0 !important;
  font-family: var(--rtbn-font-family) !important;
  font-size: var(--rtbn-title-size) !important;
  font-style: normal !important;
  font-weight: var(--rtbn-title-weight) !important;
  line-height: 1.25 !important;
  letter-spacing: var(--rtbn-letter-spacing) !important;
  text-transform: none !important;
}
/*
 * Abstände werden bewusst mit gekapselten und wichtigen Layout-Regeln gesetzt.
 * Viele Themes und Builder definieren eigene ul-/li-Abstände nur im Frontend.
 * Diese Regeln verhindern Abweichungen zwischen Editorvorschau und Website.
 */
.rtbn-nav .rtbn-list {
  display: flex !important;
  flex-direction: column !important;
  gap: var(--rtbn-item-gap) 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  list-style: none !important;
}
.rtbn-nav .rtbn-list .rtbn-list {
  margin-top: var(--rtbn-item-gap) !important;
  margin-right: 0 !important;
  margin-bottom: 0 !important;
  margin-left: var(--rtbn-indent) !important;
}
.rtbn-nav.rtbn-layout-tree .rtbn-list .rtbn-list {
  padding-left: var(--rtbn-indent) !important;
  margin-left: calc(var(--rtbn-indent) / 2) !important;
  border-left: var(--rtbn-item-border-size) solid var(--rtbn-border-color);
}
.rtbn-nav .rtbn-item {
  display: block !important;
  margin: 0 !important;
  padding: 0 !important;
  list-style: none !important;
}
.rtbn-nav .rtbn-item::marker { content: ""; }
.rtbn-nav .rtbn-row {
  display: flex;
  margin: 0 !important;
  align-items: stretch;
  min-width: 0;
  overflow: hidden;
  border: var(--rtbn-item-border-size) solid var(--rtbn-border-color);
  border-radius: var(--rtbn-radius);
  background: transparent;
  transition: background-color var(--rtbn-duration) ease, border-color var(--rtbn-duration) ease;
}
.rtbn-nav .rtbn-link {
  display: flex;
  margin: 0 !important;
  flex: 1 1 auto;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
  padding: var(--rtbn-padding-y) var(--rtbn-padding-x);
  color: var(--rtbn-link-color);
  text-decoration: none !important;
  transition: color var(--rtbn-duration) ease, background-color var(--rtbn-duration) ease;
}
.rtbn-nav .rtbn-link:hover, .rtbn-nav .rtbn-row:focus-within .rtbn-link {
  color: var(--rtbn-hover-color);
  background: var(--rtbn-hover-bg);
}
.rtbn-name-wrap {
  display: inline-flex;
  flex: 1 1 auto;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.rtbn-name {
  min-width: 0;
  overflow-wrap: anywhere;
}
.rtbn-category-media {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: var(--rtbn-category-media-size);
  height: var(--rtbn-category-media-size);
  color: var(--rtbn-icon-color);
}
.rtbn-category-icon,
.rtbn-category-image {
  display: block;
  width: 100%;
  height: 100%;
}
.rtbn-category-icon { fill: currentColor; }
.rtbn-category-image { object-fit: cover; border-radius: max(2px, calc(var(--rtbn-radius) / 2)); }
.rtbn-count {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  min-width: var(--rtbn-count-min-width);
  padding: 2px 8px;
  color: var(--rtbn-count-color);
  background: var(--rtbn-count-bg);
  border-radius: var(--rtbn-count-radius);
  font-size: .78em;
  font-weight: 700;
  line-height: 1.5;
}
.rtbn-nav .rtbn-toggle {
  display: inline-flex;
  margin: 0 !important;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: calc(var(--rtbn-icon-size) + 24px);
  min-height: 100%;
  padding: 0;
  color: var(--rtbn-icon-color);
  background: transparent;
  border: 0;
  border-right: var(--rtbn-item-border-size) solid var(--rtbn-border-color);
  border-radius: 0;
  cursor: pointer;
}
.rtbn-nav .rtbn-toggle:hover { background: var(--rtbn-hover-bg); }
.rtbn-nav .rtbn-toggle:disabled { cursor: default; opacity: .35; }
.rtbn-icon {
  width: var(--rtbn-icon-size);
  height: var(--rtbn-icon-size);
  fill: currentColor;
  transition: transform var(--rtbn-duration) ease;
}
.rtbn-toggle[aria-expanded="true"] .rtbn-icon { transform: rotate(180deg); }
.rtbn-current > .rtbn-row,
.rtbn-current > .rtbn-row .rtbn-link {
  color: var(--rtbn-active-color);
  background: var(--rtbn-active-bg);
  border-color: var(--rtbn-active-bg);
}
.rtbn-current > .rtbn-row .rtbn-link { color: var(--rtbn-active-color); }
.rtbn-current > .rtbn-row .rtbn-toggle {
  color: var(--rtbn-active-color);
  border-right-color: rgba(255,255,255,.35);
}
.rtbn-current > .rtbn-row .rtbn-count {
  color: var(--rtbn-active-bg);
  background: var(--rtbn-active-color);
}
.rtbn-nav .rtbn-link:focus-visible, .rtbn-nav .rtbn-toggle:focus-visible {
  position: relative;
  z-index: 2;
  outline: 3px solid color-mix(in srgb, var(--rtbn-focus-color) 55%, transparent);
  outline-offset: -3px;
}
.rtbn-children { overflow: hidden; }
.rtbn-children[hidden] { display: none; }
.rtbn-empty {
  padding: 12px 14px;
  border: 1px solid #d9e0e6;
  background: #fff;
  color: #333;
}
.rtbn-nav .screen-reader-text {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
@media (prefers-reduced-motion: reduce) {
  .rtbn-nav *, .rtbn-nav *::before, .rtbn-nav *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }
}
/* Responsive Werte: Tablet bis 1024 px, Smartphone bis 767 px. */
@media (max-width: 1024px) {
  .rtbn-nav {
    padding: var(--rtbn-container-pad-tablet);
    border-radius: var(--rtbn-container-radius-tablet);
    font-size: var(--rtbn-font-size-tablet);
    line-height: var(--rtbn-line-height-tablet);
    letter-spacing: var(--rtbn-letter-spacing-tablet);
  }
  .rtbn-nav > .rtbn-title {
    font-size: var(--rtbn-title-size-tablet) !important;
    letter-spacing: var(--rtbn-letter-spacing-tablet) !important;
  }
  .rtbn-nav .rtbn-list { gap: var(--rtbn-item-gap-tablet) 0 !important; }
  .rtbn-nav .rtbn-list .rtbn-list {
    margin-top: var(--rtbn-item-gap-tablet) !important;
    margin-left: var(--rtbn-indent-tablet) !important;
  }
  .rtbn-nav.rtbn-layout-tree .rtbn-list .rtbn-list {
    padding-left: var(--rtbn-indent-tablet) !important;
    margin-left: calc(var(--rtbn-indent-tablet) / 2) !important;
  }
  .rtbn-nav .rtbn-row { border-radius: var(--rtbn-radius-tablet); }
  .rtbn-nav .rtbn-link { padding: var(--rtbn-padding-y-tablet) var(--rtbn-padding-x-tablet); }
  .rtbn-nav .rtbn-count { min-width: var(--rtbn-count-min-width-tablet); }
  .rtbn-nav .rtbn-toggle { width: calc(var(--rtbn-icon-size-tablet) + 24px); }
  .rtbn-nav .rtbn-icon { width: var(--rtbn-icon-size-tablet); height: var(--rtbn-icon-size-tablet); }
  .rtbn-nav .rtbn-category-media { width: var(--rtbn-category-media-size-tablet); height: var(--rtbn-category-media-size-tablet); }
}
@media (max-width: 767px) {
  .rtbn-nav {
    padding: var(--rtbn-container-pad-mobile);
    border-radius: var(--rtbn-container-radius-mobile);
    font-size: var(--rtbn-font-size-mobile);
    line-height: var(--rtbn-line-height-mobile);
    letter-spacing: var(--rtbn-letter-spacing-mobile);
  }
  .rtbn-nav > .rtbn-title {
    font-size: var(--rtbn-title-size-mobile) !important;
    letter-spacing: var(--rtbn-letter-spacing-mobile) !important;
  }
  .rtbn-nav .rtbn-list { gap: var(--rtbn-item-gap-mobile) 0 !important; }
  .rtbn-nav .rtbn-list .rtbn-list {
    margin-top: var(--rtbn-item-gap-mobile) !important;
    margin-left: var(--rtbn-indent-mobile) !important;
  }
  .rtbn-nav.rtbn-layout-tree .rtbn-list .rtbn-list {
    padding-left: var(--rtbn-indent-mobile) !important;
    margin-left: calc(var(--rtbn-indent-mobile) / 2) !important;
  }
  .rtbn-nav .rtbn-row { border-radius: var(--rtbn-radius-mobile); }
  .rtbn-nav .rtbn-link {
    gap: 8px;
    padding: var(--rtbn-padding-y-mobile) var(--rtbn-padding-x-mobile);
  }
  .rtbn-nav .rtbn-count { min-width: var(--rtbn-count-min-width-mobile); }
  .rtbn-nav .rtbn-toggle { width: calc(var(--rtbn-icon-size-mobile) + 24px); }
  .rtbn-nav .rtbn-icon { width: var(--rtbn-icon-size-mobile); height: var(--rtbn-icon-size-mobile); }
  .rtbn-nav .rtbn-category-media { width: var(--rtbn-category-media-size-mobile); height: var(--rtbn-category-media-size-mobile); }
}

/* Geräte-Simulation für Gutenberg und die zentrale Vorlagenverwaltung. */
.rtbn-preview-device-desktop .rtbn-nav {
  padding: var(--rtbn-container-pad);
  border-radius: var(--rtbn-container-radius);
  font-size: var(--rtbn-font-size);
  line-height: var(--rtbn-line-height);
  letter-spacing: var(--rtbn-letter-spacing);
}
.rtbn-preview-device-desktop .rtbn-nav > .rtbn-title { font-size: var(--rtbn-title-size) !important; letter-spacing: var(--rtbn-letter-spacing) !important; }
.rtbn-preview-device-desktop .rtbn-nav .rtbn-list { gap: var(--rtbn-item-gap) 0 !important; }
.rtbn-preview-device-desktop .rtbn-nav .rtbn-list .rtbn-list { margin-top: var(--rtbn-item-gap) !important; margin-left: var(--rtbn-indent) !important; }
.rtbn-preview-device-desktop .rtbn-nav.rtbn-layout-tree .rtbn-list .rtbn-list { padding-left: var(--rtbn-indent) !important; margin-left: calc(var(--rtbn-indent) / 2) !important; }
.rtbn-preview-device-desktop .rtbn-nav .rtbn-row { border-radius: var(--rtbn-radius); }
.rtbn-preview-device-desktop .rtbn-nav .rtbn-link { padding: var(--rtbn-padding-y) var(--rtbn-padding-x); }
.rtbn-preview-device-desktop .rtbn-nav .rtbn-count { min-width: var(--rtbn-count-min-width); }
.rtbn-preview-device-desktop .rtbn-nav .rtbn-toggle { width: calc(var(--rtbn-icon-size) + 24px); }
.rtbn-preview-device-desktop .rtbn-nav .rtbn-icon { width: var(--rtbn-icon-size); height: var(--rtbn-icon-size); }
.rtbn-preview-device-desktop .rtbn-nav .rtbn-category-media { width: var(--rtbn-category-media-size); height: var(--rtbn-category-media-size); }

.rtbn-preview-device-tablet .rtbn-nav {
  padding: var(--rtbn-container-pad-tablet);
  border-radius: var(--rtbn-container-radius-tablet);
  font-size: var(--rtbn-font-size-tablet);
  line-height: var(--rtbn-line-height-tablet);
  letter-spacing: var(--rtbn-letter-spacing-tablet);
}
.rtbn-preview-device-tablet .rtbn-nav > .rtbn-title { font-size: var(--rtbn-title-size-tablet) !important; letter-spacing: var(--rtbn-letter-spacing-tablet) !important; }
.rtbn-preview-device-tablet .rtbn-nav .rtbn-list { gap: var(--rtbn-item-gap-tablet) 0 !important; }
.rtbn-preview-device-tablet .rtbn-nav .rtbn-list .rtbn-list { margin-top: var(--rtbn-item-gap-tablet) !important; margin-left: var(--rtbn-indent-tablet) !important; }
.rtbn-preview-device-tablet .rtbn-nav.rtbn-layout-tree .rtbn-list .rtbn-list { padding-left: var(--rtbn-indent-tablet) !important; margin-left: calc(var(--rtbn-indent-tablet) / 2) !important; }
.rtbn-preview-device-tablet .rtbn-nav .rtbn-row { border-radius: var(--rtbn-radius-tablet); }
.rtbn-preview-device-tablet .rtbn-nav .rtbn-link { padding: var(--rtbn-padding-y-tablet) var(--rtbn-padding-x-tablet); }
.rtbn-preview-device-tablet .rtbn-nav .rtbn-count { min-width: var(--rtbn-count-min-width-tablet); }
.rtbn-preview-device-tablet .rtbn-nav .rtbn-toggle { width: calc(var(--rtbn-icon-size-tablet) + 24px); }
.rtbn-preview-device-tablet .rtbn-nav .rtbn-icon { width: var(--rtbn-icon-size-tablet); height: var(--rtbn-icon-size-tablet); }
.rtbn-preview-device-tablet .rtbn-nav .rtbn-category-media { width: var(--rtbn-category-media-size-tablet); height: var(--rtbn-category-media-size-tablet); }

.rtbn-preview-device-mobile .rtbn-nav {
  padding: var(--rtbn-container-pad-mobile);
  border-radius: var(--rtbn-container-radius-mobile);
  font-size: var(--rtbn-font-size-mobile);
  line-height: var(--rtbn-line-height-mobile);
  letter-spacing: var(--rtbn-letter-spacing-mobile);
}
.rtbn-preview-device-mobile .rtbn-nav > .rtbn-title { font-size: var(--rtbn-title-size-mobile) !important; letter-spacing: var(--rtbn-letter-spacing-mobile) !important; }
.rtbn-preview-device-mobile .rtbn-nav .rtbn-list { gap: var(--rtbn-item-gap-mobile) 0 !important; }
.rtbn-preview-device-mobile .rtbn-nav .rtbn-list .rtbn-list { margin-top: var(--rtbn-item-gap-mobile) !important; margin-left: var(--rtbn-indent-mobile) !important; }
.rtbn-preview-device-mobile .rtbn-nav.rtbn-layout-tree .rtbn-list .rtbn-list { padding-left: var(--rtbn-indent-mobile) !important; margin-left: calc(var(--rtbn-indent-mobile) / 2) !important; }
.rtbn-preview-device-mobile .rtbn-nav .rtbn-row { border-radius: var(--rtbn-radius-mobile); }
.rtbn-preview-device-mobile .rtbn-nav .rtbn-link { gap: 8px; padding: var(--rtbn-padding-y-mobile) var(--rtbn-padding-x-mobile); }
.rtbn-preview-device-mobile .rtbn-nav .rtbn-count { min-width: var(--rtbn-count-min-width-mobile); }
.rtbn-preview-device-mobile .rtbn-nav .rtbn-toggle { width: calc(var(--rtbn-icon-size-mobile) + 24px); }
.rtbn-preview-device-mobile .rtbn-nav .rtbn-icon { width: var(--rtbn-icon-size-mobile); height: var(--rtbn-icon-size-mobile); }
.rtbn-preview-device-mobile .rtbn-nav .rtbn-category-media { width: var(--rtbn-category-media-size-mobile); height: var(--rtbn-category-media-size-mobile); }