/* =============================================================================
   xilox.de – UI-Relaunch 2026 · layout-app.css (Phase 0)
   -----------------------------------------------------------------------------
   App-Shell: Frame-Grid [264px | 1fr], Sidebar (fix, Sektionen, Active-State,
   Offcanvas <992px), Topbar (Title/Suche/Bell/User-Dropdown), Page-Header,
   App-Footer.
   ============================================================================= */

/* --- 1. App-Frame ------------------------------------------------------------------ */
.app-frame {
  display: grid;
  grid-template-columns: 1fr; /* <992px: Sidebar als Offcanvas */
  min-height: 100vh;
}

@media (min-width: 992px) {
  .app-frame {
    grid-template-columns: var(--sidebar-width) 1fr;
  }
}

.app-main {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--bg-base);
}

.app-content {
  flex: 1;
  width: 100%;
  max-width: var(--content-maxwidth);
  margin: 0 auto;
  padding: 0 var(--space-6) var(--space-7);
}

/* --- 2. Sidebar ---------------------------------------------------------------------- */
.app-sidebar {
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  color: var(--text-secondary);
}

@media (min-width: 992px) {
  /* Desktop: Sidebar fix im Grid, volle Höhe (BS-Offcanvas wird zu statisch → sticky) */
  .app-sidebar {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    transform: none !important;
    visibility: visible;
  }
}

/* Mobile (<992px): Sidebar wird zum Slide-In-Panel (eigene Offcanvas-Logik,
   da das lokale Bootstrap 4.6.2-Bundle keinen Offcanvas-Plugin enthält) */
@media (max-width: 991.98px) {
  .app-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1045;
    width: var(--sidebar-width);
    max-width: 85vw;
    transform: translateX(-100%);
    transition: transform .25s ease;
    box-shadow: none;
  }
  .app-sidebar.show {
    transform: translateX(0);
    box-shadow: var(--shadow-hover);
  }

  /* Schließen-Button (nur mobil sichtbar) */
  .sidebar-close-btn {
    display: inline-flex !important;
  }
}

/* Overlay hinter dem geöffneten Slide-In-Panel (mobil) – wird auch von der
   Public-Mobilmenü genutzt (layout-public.css) */
.v2-slide-overlay {
  position: fixed;
  inset: 0;
  z-index: 1040;
  background-color: rgba(5, 9, 16, .6);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}
.v2-slide-overlay.show {
  opacity: 1;
  visibility: visible;
}
@media (min-width: 992px) {
  .v2-slide-overlay {
    display: none !important;
  }
}

/* Schließen-Button im Sidebar-Kopf (mobil) */
.sidebar-close-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-input);
  background-color: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
}
.sidebar-close-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent-text);
}

/* Logo-Bereich oben (mobil mit Schließen-Button) */
.sidebar-logo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-4);
  flex-shrink: 0;
}
.sidebar-logo a {
  display: inline-flex;
  align-items: center;
}
.sidebar-logo img {
  height: 46px;
  width: auto;
}

/* Navigation */
.sidebar-nav {
  flex: 1;
  padding: var(--space-2) var(--space-3) var(--space-4);
  overflow-y: auto;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 2px;
  border-radius: var(--radius-input);
  color: var(--text-secondary);
  font-size: .875rem;
  font-weight: 400;
  line-height: 1.35;
  text-decoration: none; /* Bootstrap a:hover-Understrich unterdrücken */
  transition: background-color var(--transition-fast), color var(--transition-fast);
}
.sidebar-link:hover {
  background-color: var(--bg-elevated);
  color: var(--text-primary);
  text-decoration: none;
}

/* Active-State (§4.2): Akzent-Tint + 3px linke Kante, Icon+Text in --accent-text */
.sidebar-link.active {
  background-color: var(--accent-tint);
  box-shadow: inset 3px 0 0 0 var(--accent);
  color: var(--accent-text);
}
.sidebar-link.active .lucide {
  color: var(--accent-text);
}

/* Sektions-Labels (NETZWERK / VERWALTUNG) */
.sidebar-section-label {
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
  padding-left: calc(var(--space-3) + 12px);
  font-size: .6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .18em;
  color: var(--text-muted);
}

/* Sidebar-Boden: Hilfe / Logout + Tagline */
.sidebar-footer {
  flex-shrink: 0;
  padding: var(--space-4) var(--space-3) var(--space-5);
  border-top: 1px solid var(--border);
  margin-top: auto;
}
.sidebar-footer .sidebar-link {
  font-size: .875rem;
}

.sidebar-tagline {
  padding: var(--space-4) 12px 0;
  color: var(--text-muted);
  font-size: .8125rem;
  line-height: 1.5;
}
.sidebar-tagline::after {
  content: "";
  display: block;
  width: 32px;
  height: 2px;
  margin-top: var(--space-3);
  background-color: var(--accent);
}

/* --- 3. Topbar -------------------------------------------------------------------------- */
.app-topbar {
  position: sticky;
  top: 0;
  z-index: 1020;
  display: flex;
  align-items: center;
  gap: var(--space-4);
  min-height: var(--topbar-height);
  padding: 0 var(--space-5);
  background-color: var(--bg-sidebar);
  border-bottom: 1px solid var(--border);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}

.topbar-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Mobile-Hamburger (öffnet die Sidebar als Offcanvas) */
.topbar-hamburger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-input);
  background-color: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
}
@media (min-width: 992px) {
  .topbar-hamburger {
    display: none !important;
  }
}

/* Suche zentriert */
.topbar-search {
  flex: 1;
  max-width: 640px;
  margin: 0 auto;
}
@media (max-width: 575.98px) {
  .topbar-search .search-box kbd {
    display: none;
  }
}

/* Mobile (< 576px): Suche + User-Meta ausblenden, damit Topbar ohne
   Horizontal-Scroll bleibt (Hamburger + Titel + Bell + Avatar passen). */
@media (max-width: 575.98px) {
  .topbar-search {
    display: none;
  }
  .user-menu-toggle .user-meta {
    display: none;
  }
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

/* Bell mit Badge-Punkt */
.icon-btn.has-dot {
  position: relative;
}
.icon-btn.has-dot::after {
  content: "";
  position: absolute;
  top: 7px;
  right: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent);
  border: 2px solid var(--bg-sidebar);
}

/* User-Dropdown */
.user-dropdown {
  position: relative;
}
.user-menu-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 4px 8px;
  border-radius: var(--radius-chip);
  background-color: transparent;
  border: none;
  color: var(--text-primary);
}
.user-menu-toggle:hover,
.user-menu-toggle:focus {
  background-color: var(--bg-elevated);
}

.avatar-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-elevated);
  color: var(--text-primary);
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .02em;
  flex-shrink: 0;
}
/* Akzent-Variante (eingeloggter Nutzer) */
.avatar-circle.accent {
  background-color: var(--accent-tint);
  color: var(--accent-text);
}

.user-meta {
  display: none; /* erst ab md */
  text-align: left;
  line-height: 1.25;
}
@media (min-width: 768px) {
  .user-meta {
    display: block;
  }
}
.user-name {
  display: block;
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-primary);
}
.user-role {
  display: block;
  font-size: .75rem;
  color: var(--text-secondary);
}

/* --- 4. Page-Header -------------------------------------------------------------------------- */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-5);
  padding-top: var(--space-6);
  margin-bottom: var(--space-5);
}

.page-header h1 {
  margin: var(--space-2) 0 var(--space-3);
}

/* Optionale rechte Meta-Zone (Datum/Zitat wie in inside.png, oder Stat-Cards) */
.page-header-meta {
  flex-shrink: 0;
  text-align: right;
  color: var(--text-secondary);
  font-size: .875rem;
}
.page-header-meta .meta-line + .meta-line {
  margin-top: var(--space-2);
}

@media (max-width: 991.98px) {
  .page-header {
    flex-direction: column;
  }
  .page-header-meta {
    text-align: left;
  }
}

/* --- 5. App-Footer ------------------------------------------------------------------------------ */
.app-footer {
  border-top: 1px solid var(--border);
  background-color: var(--bg-base);
}
.app-footer-inner {
  max-width: var(--content-maxwidth);
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.app-footer p {
  margin: 0;
  color: var(--text-secondary);
  font-size: .8125rem;
}
.app-footer-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.app-footer-links a {
  color: var(--text-secondary);
  font-size: .8125rem;
}
.app-footer-links a:hover {
  color: var(--accent-text);
}