/* HYBRID-LINKKONZEPT Admin-UI — App-Shell
   Sidebar (240px, vier Gruppen), Topbar (48px), Icon-Rail, Off-Canvas.
   Nutzt den bestehenden Datenattribut-Kontrakt: data-app, data-sidebar-toggle,
   data-sidebar-overlay, .sidebar__link, .is-open. */

.app { display: grid; grid-template-columns: var(--hlk-sidebar-w) minmax(0, 1fr); min-height: 100vh; }
.app__main { min-width: 0; }

.sidebar {
  background: #fbfcfd;
  border-right: 1px solid var(--hlk-border);
  display: flex;
  flex-direction: column;
}
.sidebar__brand {
  height: var(--hlk-h-topbar);
  display: flex; align-items: center; gap: var(--hlk-space-2);
  padding: 0 14px;
  border-bottom: 1px solid var(--hlk-border);
}
.sidebar__mark {
  width: 22px; height: 22px; flex: none;
  border-radius: var(--hlk-radius);
  background: var(--hlk-primary);
  color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: var(--hlk-fs-overline); font-weight: 700;
}
.sidebar__wordmark { font-size: var(--hlk-fs-data-sm); font-weight: 600; letter-spacing: -.01em; color: var(--hlk-text); }
.sidebar__nav { padding: var(--hlk-space-3) var(--hlk-space-2); flex: 1; }
.sidebar__group {
  font-size: var(--hlk-fs-overline-sm);
  font-weight: 600; letter-spacing: .09em; text-transform: uppercase;
  color: var(--hlk-text-4);
  padding: 6px var(--hlk-space-2);
}
.sidebar__group + .sidebar__group,
.sidebar__link + .sidebar__group { padding-top: 14px; }

.sidebar__link {
  display: flex; align-items: center; gap: 9px;
  padding: 7px var(--hlk-space-2);
  border-radius: var(--hlk-radius);
  color: var(--hlk-text-2);
  font-size: var(--hlk-fs-data);
  text-decoration: none;
}
.sidebar__link:hover { background: var(--hlk-surface-sunken); color: var(--hlk-text); text-decoration: none; }
.sidebar__link.is-active {
  background: var(--hlk-primary-soft);
  color: var(--hlk-primary-hover);
  box-shadow: inset 2px 0 0 var(--hlk-primary);
  font-weight: 500;
}
.sidebar__link .hlk-icon { flex: none; width: 15px; height: 15px; }
.sidebar__count { margin-left: auto; font-family: var(--hlk-mono); font-size: var(--hlk-fs-overline); color: var(--hlk-text-4); }
.sidebar__alert {
  margin-left: auto;
  display: inline-flex; align-items: center; gap: var(--hlk-space-1);
  font-size: var(--hlk-fs-overline); font-weight: 600; color: var(--hlk-danger);
}
.sidebar__alert::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--hlk-danger); }
.sidebar__tag {
  margin-left: auto;
  font-size: var(--hlk-fs-overline-sm); font-weight: 500;
  padding: 1px 5px; border-radius: var(--hlk-radius-sm);
  background: var(--hlk-neutral-soft); color: var(--hlk-neutral-text);
  border: 1px solid var(--hlk-neutral-line);
}
.sidebar__foot { padding: var(--hlk-space-2) 10px; border-top: 1px solid var(--hlk-border); }

.topbar {
  height: var(--hlk-h-topbar);
  background: var(--hlk-surface);
  border-bottom: 1px solid var(--hlk-border);
  display: flex; align-items: center; gap: var(--hlk-space-3);
  padding: 0 var(--hlk-space-6);
  position: sticky; top: 0; z-index: 20;
}
.topbar__crumb { font-size: var(--hlk-fs-data-sm); color: var(--hlk-text-3); }
.topbar__title { font-size: var(--hlk-fs-data-sm); font-weight: 600; color: var(--hlk-text); }
.topbar__right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.topbar__env { font-family: var(--hlk-mono); font-size: var(--hlk-fs-caption); color: var(--hlk-text-3); }
.topbar__user { font-size: var(--hlk-fs-caption); color: var(--hlk-text-2); }
.topbar__sep { width: 1px; height: 20px; background: var(--hlk-border); }
.topbar__toggle { display: none; }
.sidebar__overlay { display: none; }

/* Icon-Rail: Labels aus, Icons zentriert */
@media (max-width: 1279px) {
  .app { grid-template-columns: var(--hlk-sidebar-rail) minmax(0, 1fr); }
  .sidebar__nav .sidebar__link { justify-content: center; }
  .sidebar__nav .sidebar__link span:not(.hlk-icon),
  .sidebar__group, .sidebar__wordmark,
  .sidebar__count, .sidebar__tag, .sidebar__foot { display: none; }
}

/* Off-Canvas */
@media (max-width: 767px) {
  .app { grid-template-columns: minmax(0, 1fr); }
  .sidebar {
    position: fixed; inset: 0 auto 0 0; z-index: 40;
    width: var(--hlk-sidebar-w);
    transform: translateX(-100%);
    transition: transform .16s ease-out;
  }
  .sidebar__nav .sidebar__link { justify-content: flex-start; }
  .sidebar__nav .sidebar__link span:not(.hlk-icon),
  .sidebar__group, .sidebar__wordmark, .sidebar__count, .sidebar__tag { display: revert; }
  .app.is-open .sidebar { transform: translateX(0); }
  .app.is-open .sidebar__overlay {
    display: block; position: fixed; inset: 0; z-index: 35;
    background: var(--hlk-overlay);
  }
  .topbar__toggle { display: inline-flex; }
  .hlk-content, .page-shell { padding: var(--hlk-space-4); }
}

/* ---------- Auth-Chrome (Paket 9: aus Übergangsschicht befördert) ---------- */
/* Topbar + Wortmarke der Auth-/Installer-Ansichten (header.php Auth-Zweig). */
.page-topbar { position: sticky; top: 0; z-index: 20; background: rgba(243,246,251,.96); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(217,225,236,.9); }
.page-topbar__inner { width: min(1440px, calc(100% - 32px)); margin: 0 auto; display: flex; align-items: center; gap: 12px; padding: 14px 0; }
.nav-brand { font-weight: 800; color: var(--text); letter-spacing: 0; white-space: nowrap; }
.page-shell--auth { width: min(680px, calc(100% - 24px)); padding: 18px 0 32px; }
.page-topbar--auth { position: static; background: transparent; border-bottom: none; backdrop-filter: none; }
.page-topbar__inner--auth { width: min(680px, calc(100% - 24px)); justify-content: flex-start; padding: 20px 0 0; }
@media (max-width: 720px) {
  .page-topbar__inner { flex-direction: column; align-items: flex-start; width: min(100%, calc(100% - 20px)); }
  .page-shell--auth { width: min(100%, calc(100% - 20px)); padding: 14px 0 24px; }
}