/* ── Sidebar layout (extracted from AdminLTE v4) ────────────────────────── */
:root {
  --lte-sidebar-width: 250px;
}

.app-sidebar {
  z-index: 1038;
  min-width: var(--lte-sidebar-width);
  max-width: var(--lte-sidebar-width);
  transition: min-width .3s ease-in-out, max-width .3s ease-in-out, margin-left .3s ease-in-out, margin-right .3s ease-in-out;
}
@media (prefers-reduced-motion: reduce) {
  .app-sidebar { transition: none; }
}

.sidebar-wrapper {
  padding: .5rem;
  scrollbar-color: var(--bs-secondary-bg) transparent;
  scrollbar-width: thin;
}
.sidebar-wrapper::-webkit-scrollbar { width: .5rem; height: .5rem; }
.sidebar-wrapper::-webkit-scrollbar-thumb { background-color: var(--bs-secondary-bg); }
.sidebar-wrapper::-webkit-scrollbar-track { background-color: transparent; }

.sidebar-wrapper .nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 1.5rem;
  max-width: 1.5rem;
}

/* Nav-link base: flex row so icon + text sit on one line */
.sidebar-wrapper .nav-link {
  display: flex;
  justify-content: flex-start;
  width: 100%;
}
.sidebar-wrapper .nav-link p {
  display: inline;
  padding-left: .5rem;
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sidebar-wrapper .nav-item {
  max-width: 100%;
}

/* Treeview submenu toggle */
.sidebar-menu .nav-treeview {
  display: none;
  padding: 0;
  list-style: none;
}
.sidebar-menu .menu-open > .nav-treeview {
  display: block;
}

/* Nav-header fills sidebar width */
.sidebar-menu .nav-header {
  width: 100%;
}

/* Arrow rotation */
.sidebar-menu .nav-link > .nav-arrow,
.sidebar-menu .nav-link > p > .nav-arrow {
  position: absolute;
  top: 50%;
  right: 1rem;
}
.sidebar-menu .nav-link > .nav-arrow {
  transform: translateY(-50%);
  transition: transform ease-in-out .3s;
}
@media (prefers-reduced-motion: reduce) {
  .sidebar-menu .nav-link > .nav-arrow { transition: none; }
}
.sidebar-menu .menu-open > .nav-link .nav-arrow {
  transform: translateY(-50%) rotate(90deg);
}

/* Collapsed sidebar (icon-only) */
.sidebar-mini.sidebar-collapse .app-sidebar {
  min-width: 4.6rem;
  max-width: 4.6rem;
}
.sidebar-mini.sidebar-collapse .sidebar-menu .nav-header {
  display: none;
}
.sidebar-mini.sidebar-collapse .sidebar-menu .nav-link p {
  display: inline-block;
  width: 0;
  white-space: nowrap;
}
.sidebar-mini.sidebar-collapse .sidebar-menu .nav-arrow {
  display: none;
}
.sidebar-mini.sidebar-collapse .brand-text {
  display: inline-block;
  max-width: 0;
  overflow: hidden;
  visibility: hidden;
}

/* Hold transition — prevent layout animation on first paint */
.hold-transition .app-sidebar,
.hold-transition .nav-arrow {
  transition: none !important;
}

/* Breakpoint detection (value read by JS via ::before content) */
.sidebar-expand-lg::before {
  display: none;
  content: "991.98px";
}

/* Responsive off-canvas */
@media (max-width: 991.98px) {
  .sidebar-expand-lg .app-sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    max-height: 100vh;
    margin-left: calc(var(--lte-sidebar-width) * -1);
  }
  .sidebar-expand-lg .app-sidebar .sidebar-wrapper {
    height: calc(100vh - 3.5rem);
    overflow-x: hidden;
    overflow-y: auto;
  }
  .sidebar-expand-lg.sidebar-open .app-sidebar {
    margin-left: 0;
  }
  .sidebar-expand-lg.sidebar-open .sidebar-overlay {
    position: absolute;
    inset: 0;
    z-index: 1037;
    width: 100%;
    height: 100%;
    cursor: pointer;
    visibility: visible;
    background-color: rgba(0,0,0,.2);
  }
}