/* ── Layout ── */
#layout {
  display: flex;
  height: 100vh;
  padding-top: var(--header-h);
}

/* ── Left nav ── */
#page-nav {
  width: var(--nav-w);
  flex-shrink: 0;
  border-right: 1px solid var(--col-border);
  overflow-y: auto;
  background: #fff;
  padding: 0.5rem 0;
}
#page-nav h3 {
  font-family: var(--font-ui);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--col-muted);
  padding: 0.75rem 1rem 0.4rem;
}
.page-link {
  display: block;
  padding: 0.28rem 1rem;
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--col-text);
  cursor: pointer;
  border: none; background: none; width: 100%; text-align: left;
}
.page-link:hover { background: var(--col-accent-light); }
.page-link.active { background: var(--col-accent-light); font-weight: 600; color: var(--col-accent); }

/* ── Main content ── */
#content { flex: 1; display: flex; overflow: hidden; }

/* ── Transcript pane ── */
#transcript-pane {
  width: 50%;
  overflow-y: auto;
  padding: 1.25rem 1.5rem;
  border-right: 1px solid var(--col-border);
}

#pane-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--col-border);
  font-family: var(--font-ui);
  font-size: 13px;
}
#pane-controls label { display: flex; align-items: center; gap: 0.4rem; cursor: pointer; color: var(--col-muted); }

/* ── View toggle switch ── */
.view-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.view-toggle-label {
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--col-muted);
  transition: color 0.15s;
  user-select: none;
}
.view-toggle-label.active {
  color: var(--col-accent);
  font-weight: 600;
}
.view-toggle-switch {
  position: relative;
  width: 36px;
  height: 20px;
  background: var(--col-border);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  padding: 0;
  transition: background 0.2s;
  flex-shrink: 0;
}
.view-toggle-switch[aria-checked="true"] {
  background: var(--col-accent);
}
.view-toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 14px;
  height: 14px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
  pointer-events: none;
}
.view-toggle-switch[aria-checked="true"] .view-toggle-thumb {
  transform: translateX(16px);
}

/* ── Entry ── */
.entry {
  margin-bottom: 1.75rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--col-border);
}
.entry:last-child { border-bottom: none; }
.entry-head {
  font-family: var(--font-ui);
  font-size: 11px;
  color: var(--col-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}
.entry-comment {
  font-family: var(--font-ui);
  font-style: italic;
  font-size: 12px;
  color: var(--col-muted);
  margin-bottom: 0.4rem;
}

/* ── TEI element styles ── */
.tei-del { text-decoration: line-through; color: var(--col-muted); }

/* fw: running title / catchword */
.tei-fw {
  display: block;
  font-size: 12px;
  color: var(--col-muted);
  font-family: var(--font-ui);
  margin-bottom: 0.4rem;
}

/* section headings */
.tei-head-heading-main {
  display: block;
  font-weight: bold;
  margin: 1rem 0 0.6rem;
  font-size: 15px;
}
.tei-head-heading-alphabetical,
.tei-head-heading-temporal {
  display: block;
  font-weight: bold;
  margin: 1rem 0 0.4rem;
  font-size: 14px;
}

/* formular view */
.tei-ab-formular { display: block; }
.tei-slot {
  display: block;
  padding-left: 0.9rem;
  border-left: 2px solid var(--col-accent-light);
  margin-bottom: 0;
}
.tei-slot + .tei-slot {
  margin-top: 0.35rem;
}
.tei-annotation {
  color: var(--col-muted);
  font-size: 0.85em;
  margin-right: 0.2em;
}
.tei-leerzeile {
  height: 0.75rem;
}

/* rs type highlights (subtle) */
.tei-rs-von    { color: #3a2a5a; }
.tei-rs-objekt { color: #1a3a2a; }
.tei-rs-lage   { color: #2a1a3a; }

/* ── Facsimile pane ── */
#facsimile-pane {
  width: 50%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #2a2520;
}
#facsimile-pane h3 {
  font-family: var(--font-ui);
  font-size: 12px;
  color: #aaa;
  padding: 0.55rem 1rem;
  border-bottom: 1px solid #444;
  flex-shrink: 0;
}
#openseadragon { flex: 1; }

/* ── Scrollbars ── */
#page-nav::-webkit-scrollbar,
#transcript-pane::-webkit-scrollbar { width: 5px; }
#page-nav::-webkit-scrollbar-thumb,
#transcript-pane::-webkit-scrollbar-thumb { background: var(--col-border); border-radius: 3px; }

/* ── Schmale Nav: Breite passt sich dem Inhalt an ── */
#page-nav {
  width: auto;
  min-width: 60px;
  max-width: 120px;
}
#page-nav h3 {
  padding: 0.75rem 0.6rem 0.4rem;
}
.page-link {
  padding: 0.28rem 0.6rem;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

/* ── Prev / Next Buttons ── */
.nav-btn {
  background: none;
  border: 1px solid var(--col-border);
  border-radius: 3px;
  padding: 0.15rem 0.5rem;
  font-size: 14px;
  cursor: pointer;
  color: var(--col-text);
  line-height: 1.4;
  font-family: var(--font-ui);
}
.nav-btn:hover { background: var(--col-accent-light); border-color: var(--col-accent); }
.nav-btn:disabled { opacity: 0.3; cursor: default; }
.nav-btn:disabled:hover { background: none; border-color: var(--col-border); }