/* ==========================================================================
   🗂️ App Sidebar — Shared Lateral Navigation
   Used by Explore (explore_dashboard) and Overview (dashboard) views.
   Merged from explore.css and lateral-tabs.css with unified class names.
   ========================================================================== */

/* ============================================
   📐 Main Layout
   ============================================ */
.app-sidebar-wrapper {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

/* ── Sidebar column ── */
.app-sidebar {
  flex-shrink: 0;
  width: 260px;
  position: sticky;
  top: 86px; /* Below navbar */
  z-index: 10;
}

/* ── Content area — takes remaining space ── */
.app-sidebar-content {
  flex: 1;
  min-width: 0;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* ── Tab content wrapper (overview variant) ── */
.app-sidebar-content.has-tab-content {
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  overflow: hidden;
  animation: tabFadeIn 0.4s ease-out;
}

@keyframes tabFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================
   🗂️ Sidebar / Tab Navigation
   ============================================ */
.app-sidebar-nav {
  flex-direction: column;
  gap: 4px;
  display: flex;
  flex-wrap: nowrap;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-sm);
  box-shadow: var(--shadow-md);
}

/* ── Toggle button for collapsing sidebar ── */
.app-sidebar-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: auto;
  padding: 0.25rem 0.4rem;
  margin: 0 auto 6px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.75rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  opacity: 0.5;
}

.app-sidebar-toggle:hover {
  background: var(--primary-light);
  color: var(--primary);
  opacity: 1;
}

.app-sidebar-toggle .collapse-icon {
  transition: transform var(--transition-base);
}

/* ── Collapsed sidebar state ── */
.app-sidebar.app-sidebar-collapsed {
  width: 62px;
}

.app-sidebar.app-sidebar-collapsed .app-sidebar-nav-header {
  display: none;
}

.app-sidebar.app-sidebar-collapsed .app-sidebar-nav-item .nav-text {
  display: none;
}

.app-sidebar.app-sidebar-collapsed .app-sidebar-nav-item .nav-count {
  display: none;
}

.app-sidebar.app-sidebar-collapsed .app-sidebar-nav-item {
  justify-content: center;
  padding: 0.65rem 0;
  gap: 0;
}

.app-sidebar.app-sidebar-collapsed .app-sidebar-nav-item i {
  width: auto;
  font-size: 1.25rem;
}

.app-sidebar.app-sidebar-collapsed .app-sidebar-toggle {
  justify-content: center;
  padding: 0.25rem 0;
  gap: 0;
  width: auto;
  opacity: 0.5;
}

.app-sidebar.app-sidebar-collapsed .app-sidebar-toggle .collapse-icon {
  transform: rotate(180deg);
}

/* ── Nav item / Nav link (base) ── */
.app-sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 0.65rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: all var(--transition-fast);
  border: none;
  background: transparent;
  text-align: left;
  white-space: nowrap;
  cursor: pointer;
}

.app-sidebar-nav-item:hover {
  background: var(--primary-light);
  color: var(--text-primary);
  transform: translateX(4px);
}

.app-sidebar-nav-item.active {
  background: var(--primary-gradient);
  color: #fff;
  box-shadow: 0 2px 12px rgba(0, 123, 255, 0.3);
  transform: translateX(4px);
}

.app-sidebar-nav-item:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.app-sidebar-nav-item i {
  font-size: 1.15rem;
  width: 22px;
  text-align: center;
  flex-shrink: 0;
}

.app-sidebar-nav-item .nav-text {
  flex: 1;
}

/* ── Count badge ── */
.app-sidebar-nav-item .nav-count {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 6px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  background: rgba(0, 0, 0, 0.08);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.app-sidebar-nav-item.active .nav-count {
  background: rgba(255, 255, 255, 0.25);
  color: #fff;
}

.app-sidebar-nav-item:hover .nav-count {
  background: rgba(0, 0, 0, 0.12);
}

/* ============================================
   📱 Responsive — Collapse to top tabs
   ============================================ */
@media (max-width: 991.98px) {
  .app-sidebar-wrapper {
    flex-direction: column;
  }

  .app-sidebar {
    width: 100% !important;
    position: static;
  }

  /* ── Mobile: horizontal nav bar ── */
  .app-sidebar-nav {
    flex-direction: row;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    display: flex;
    padding: 0.75rem 1rem;
    gap: 14px;
    justify-content: center;
  }

  .app-sidebar-nav::-webkit-scrollbar {
    display: none;
  }

  .app-sidebar-nav-item {
    position: relative;
    flex-shrink: 0;
    white-space: nowrap;
    font-size: 0.82rem;
    padding: 0.5rem 0.6rem;
    gap: 6px;
    flex-direction: row;
    align-items: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    width: auto;
    margin: 0 4px;
  }

  .app-sidebar-nav-item:hover {
    transform: none;
    background: var(--primary-light);
    color: var(--text-primary);
  }

  .app-sidebar-nav-item.active {
    transform: none;
    background: var(--primary-gradient);
    color: #fff;
  }

  /* Hide text label on mobile — show icon only */
  .app-sidebar-nav-item .nav-text {
    display: none;
  }

  /* Count badge at top-right of icon (like navbar notification) */
  .app-sidebar-nav-item .nav-count {
    position: absolute;
    top: -6px;
    right: -6px;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    font-size: 0.58rem;
    line-height: 18px;
    border-radius: var(--radius-full);
    background: var(--primary, #0d6efd);
    color: #fff;
    font-weight: 700;
    margin-left: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .app-sidebar-nav-item.active .nav-count {
    background: #fff;
    color: var(--primary, #0d6efd);
  }

  .dark-mode .app-sidebar-nav-item .nav-count {
    background: var(--primary, #6a11cb);
    color: #fff;
  }

  .dark-mode .app-sidebar-nav-item.active .nav-count {
    background: #fff;
    color: #6a11cb;
  }

  .app-sidebar-nav-item i {
    font-size: 1.15rem;
    width: auto;
  }

  /* ── Neutralize collapsed state on mobile ── */
  .app-sidebar.app-sidebar-collapsed .app-sidebar-nav-item {
    justify-content: center;
    padding: 0.5rem 0.6rem;
    gap: 6px;
  }
  .app-sidebar.app-sidebar-collapsed .app-sidebar-nav-item .nav-count {
    display: inline-flex;
    position: absolute;
    top: -6px;
    right: -6px;
    background: var(--primary, #0d6efd);
    color: #fff;
  }
  .app-sidebar.app-sidebar-collapsed .app-sidebar-nav-item.active .nav-count {
    background: #fff;
    color: var(--primary, #0d6efd);
  }
  .dark-mode .app-sidebar.app-sidebar-collapsed .app-sidebar-nav-item .nav-count {
    background: var(--primary, #6a11cb);
    color: #fff;
  }
  .dark-mode .app-sidebar.app-sidebar-collapsed .app-sidebar-nav-item.active .nav-count {
    background: #fff;
    color: #6a11cb;
  }
  .app-sidebar.app-sidebar-collapsed .app-sidebar-nav-item .nav-text {
    display: none;
  }
  .app-sidebar.app-sidebar-collapsed .app-sidebar-nav-item i {
    width: auto;
    font-size: 1.15rem;
  }

  .app-sidebar-toggle {
    display: none;
  }

  .app-sidebar-nav-header {
    display: none;
  }
}

/* ============================================
   🌗 Dark mode overrides
   ============================================ */
.dark-mode .app-sidebar-nav {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
}

.dark-mode .app-sidebar-nav-item {
  color: var(--text-primary);
}

.dark-mode .app-sidebar-nav-item:hover {
  background: rgba(102, 16, 242, 0.2);
  color: var(--text-primary);
}

.dark-mode .nav-count {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
}

.dark-mode .app-sidebar-content {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
}