/* Dokumentenlenkung: natürlicher Seitenscroll über den Browser-Viewport. */
html {
  overflow-x: hidden;
  overflow-y: auto;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  overflow-y: auto;
}

.app-shell {
  display: block;
  height: auto;
  min-height: 100dvh;
  padding-top: var(--leadity-shell-header-height);
  padding-bottom: var(--leadity-shell-footer-height);
}

.app-main {
  width: 100%;
  min-height: calc(100dvh - var(--leadity-shell-header-height) - var(--leadity-shell-footer-height));
  overflow: visible;
}

.page-content {
  overflow: visible;
  scrollbar-width: auto;
}

/* Header-Cards der Dokument-Unterseiten: vollständiger Display-Stil im
   zuletzt geladenen Seitenlayer, damit nachgelagerte UI-Kit-Regeln die
   Montserrat-Bindung nicht auf Roboto zurücksetzen. */
:is(.page-header-card, .page-header) :is(.headline-display, .page-title) {
  margin: 0;
  color: var(--leadity-text-dark);
  font-family: "Montserrat", system-ui, sans-serif;
  font-size: var(--leadity-text-display-lg-size, 30px);
  font-weight: 700;
  line-height: var(--leadity-text-display-lg-line, 1.3);
  letter-spacing: var(--leadity-text-display-lg-tracking, .1px);
  text-wrap: balance;
}

.global-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 90;
}

.global-footer {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 90;
}

@media (min-width: 1024px) {
  .sidebar {
    grid-column: 1;
    height: calc(100dvh - var(--leadity-shell-header-height) - var(--leadity-shell-footer-height) - var(--leadity-space-7) - var(--leadity-space-7));
    max-height: none;
    position: fixed;
    top: calc(var(--leadity-shell-header-height) + var(--leadity-space-7));
    left: var(--leadity-space-6);
    z-index: 60;
  }

  .app-shell[data-nav-open="true"] .context-rail {
    grid-column: 2;
    left: calc(var(--leadity-space-6) + var(--leadity-shell-sidebar-width) + var(--leadity-space-5));
  }

  .app-shell[data-nav-open="true"] .page-content {
    grid-column: 3;
  }

  .app-shell[data-nav-open="false"] .context-rail {
    grid-column: 1;
    left: var(--leadity-space-6);
  }

  .app-shell[data-nav-open="false"] .page-content {
    grid-column: 2;
  }
}

@media (min-width: 1024px) and (max-width: 1279px) {
  .sidebar {
    width: 280px;
  }

  .app-shell[data-nav-open="true"] .context-rail {
    left: calc(var(--leadity-space-6) + 280px + var(--leadity-space-5));
  }
}

@media (min-width: 768px) {
  .context-rail {
    grid-column: 1;
    position: fixed;
    top: calc(var(--leadity-shell-header-height) + var(--leadity-space-7));
    left: var(--leadity-space-6);
    z-index: 55;
  }

  .page-content {
    grid-column: 2;
  }

  /* Dokument-Unterseiten: Das Inhaltsverzeichnis folgt dem Viewport,
     während der Dokumentinhalt im natürlichen Seitenscroll weiterläuft. */
  #screen[data-od-id="document-read-screen"] .reading-document-toc,
  #screen[data-od-id="document-editor-screen"] .editor-outline,
  #screen[data-od-id="review-screen"] .review-document-toc {
    position: sticky;
    top: calc(var(--leadity-shell-header-height) + var(--leadity-space-7));
    align-self: start;
    max-height: calc(100dvh - var(--leadity-shell-header-height) - var(--leadity-shell-footer-height) - var(--leadity-space-7) - var(--leadity-space-7));
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
  }

  /* overflow:hidden an der Editor-Card würde position:sticky an den
     nicht scrollenden Vorfahren binden und damit wirkungslos machen. */
  #screen[data-od-id="document-editor-screen"] :is(.editor-shell, .editor-workspace) {
    overflow: visible;
  }

  #screen[data-od-id="review-screen"] .review-document-card {
    overflow: visible;
  }
}

@media (max-width: 767px) {
  .app-shell {
    padding-bottom: 256px;
  }

  .app-main {
    min-height: calc(100dvh - var(--leadity-shell-header-height) - 256px);
  }

  .global-footer {
    height: 256px;
  }
}