/* ============================================================
   App-Shell CSS – Haupt-SPA-Layout
   ============================================================ */

/* ── Session Timeout Popup ───────────────────────────────── */
.session-timeout-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  backdrop-filter: blur(4px);
  animation: sessionFadeIn 0.2s ease;
}

.session-timeout-overlay.hidden {
  display: none;
}

@keyframes sessionFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.session-timeout-modal {
  background: var(--surface, #fff);
  border-radius: 16px;
  padding: 2rem 2.5rem;
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  animation: sessionSlideUp 0.25s ease;
}

@keyframes sessionSlideUp {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.session-timeout-icon {
  font-size: 3rem;
  margin-bottom: 0.75rem;
}

.session-timeout-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--text-primary, #1a1a1a);
}

.session-timeout-message {
  font-size: 0.95rem;
  color: var(--text-secondary, #555);
  margin: 0 0 1.25rem;
  line-height: 1.5;
}

.session-timeout-countdown {
  background: var(--warning-bg, #fff3cd);
  border: 1px solid var(--warning-border, #ffc107);
  border-radius: 8px;
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  color: var(--warning-text, #856404);
  margin-bottom: 1.5rem;
}

.session-timeout-countdown span {
  font-weight: 700;
  font-size: 1.1rem;
}

.session-timeout-buttons {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.session-timeout-btn {
  padding: 0.65rem 1.4rem;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
}

.session-timeout-btn:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.session-timeout-btn:active {
  transform: translateY(0);
}

.session-timeout-btn--primary {
  background: var(--primary, #2e7d32);
  color: #fff;
}

.session-timeout-btn--secondary {
  background: var(--surface-hover, #f0f0f0);
  color: var(--text-primary, #333);
  border: 1px solid var(--border, #ddd);
}

/* ── Views (SPA-Übergänge) ───────────────────────────────── */
.view {
  animation: view-in 0.3s ease;
}

@keyframes view-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Mobile-Menü-Button ──────────────────────────────────── */
.mobile-menu-btn {
  display: none;
}

/* ── Sidebar-Overlay (mobile) ────────────────────────────── */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(3px);
  z-index: 150;
}

/* ── Quiz-Header-Gruppe (zentriert im Header) ────────────── */
.quiz-header__info {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}

/* ── User-Menü ───────────────────────────────────────────── */
.user-menu {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.user-menu__name {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--c-text-secondary);
}

/* ── Kategorie-Sidebar-Links ─────────────────────────────── */
#sidebarCategories .nav-item {
  font-size: var(--fs-xs);
  color: var(--c-text-muted);
  padding: var(--sp-2) var(--sp-4);
}

#sidebarCategories .nav-item:hover {
  color: var(--c-text-secondary);
}

/* ── Tabellen-Status-Badges ──────────────────────────────── */
.status-passed {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--c-correct);
  font-size: var(--fs-xs);
  font-weight: 600;
}

.status-failed {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--c-wrong);
  font-size: var(--fs-xs);
  font-weight: 600;
}

/* ── Responsive (Mobile) ─────────────────────────────────── */
@media (max-width: 768px) {
  .mobile-menu-btn { display: flex; }

  .app-shell {
    grid-template-columns: 1fr;
  }

  .app-shell__sidebar {
    display: none;
    position: fixed;
    inset: var(--header-h) auto 0 0;
    width: var(--sidebar-w);
    z-index: 200;
    height: auto;
    box-shadow: 4px 0 32px rgba(0,0,0,0.6);
    animation: sidebar-slide-in 0.25s ease;
  }

  @keyframes sidebar-slide-in {
    from { transform: translateX(-100%); }
    to   { transform: translateX(0); }
  }

  .app-shell__sidebar.open {
    display: block;
  }

  .app-shell__header {
    gap: var(--sp-3);
  }

  .app-shell__main {
    padding: var(--sp-5) var(--sp-4);
  }

  .user-menu__name {
    display: none;
  }
}