/* Premium Navigation Rail */
.NavRail {
  background: var(--nav-rail-bg, var(--gradient-surface));
  border-right: 1px solid rgba(94, 173, 184, 0.1);
  padding: var(--space-6);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  outline: none !important;
  box-shadow: none !important;
}

/* Prevent focus outline on NavRail and its container */
.NavRail:focus,
.NavRail *:focus:not(:focus-visible),
.AppShell:focus,
.AppShell *:focus:not(:focus-visible) {
  outline: none !important;
}

/* Removed decorative border - caused visual glitch on initial load */

.nav-header {
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.nav-tier {
  padding: 2px 8px;
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 10px;
  font-weight: var(--font-bold);
  letter-spacing: 0.05em;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  justify-content: center;
}

.nav-logo-img {
  height: 36px;
  width: auto;
  transform: scale(1.3);
  transform-origin: left center;
  transition: all 0.25s ease;
}

.nav-logo-icon {
  font-size: var(--text-2xl);
  filter: drop-shadow(0 0 10px var(--brand));
}

.nav-logo-text {
  font-family: var(--font-display);
  font-weight: var(--font-bold);
  font-size: var(--text-lg);
  color: var(--text-primary);
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: var(--space-2);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  color: #94a3b8;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.15s ease;
  position: relative;
  overflow: hidden;
  border: 1px solid transparent;
}

.nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 3px;
  height: 55%;
  background: #5eadb8;
  border-radius: 0 2px 2px 0;
  transform-origin: center;
  transition: transform 0.15s ease;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.04);
  color: #e2e8f0;
}

.nav-link:hover::before {
  transform: translateY(-50%) scaleY(0.5);
}

.nav-link.active {
  background: rgba(94, 173, 184, 0.07);
  color: #f1f5f9;
  border: 1px solid rgba(94, 173, 184, 0.12);
  font-weight: 600;
}

.nav-link.active::before {
  transform: translateY(-50%) scaleY(1);
}

/* Grouping divider */
.nav-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.04);
  margin: 8px 12px;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  right: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  background: var(--brand);
  border-radius: var(--radius-full);
  box-shadow: 0 0 8px var(--brand);
}

.nav-icon {
  font-size: var(--text-lg);
  opacity: 0.8;
  transition: all var(--duration-200) var(--ease-out);
}

.nav-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
}

.nav-link:hover .nav-icon,
.nav-link.active .nav-icon {
  opacity: 1;
  filter: drop-shadow(0 0 4px currentColor);
  transform: scale(1.1);
}

.nav-kbd {
  margin-top: auto;
  padding: var(--space-3) var(--space-4);
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-align: center;
  backdrop-filter: blur(10px);
}

.nav-footer {
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.nav-social-link:hover { color: var(--text-primary); }

.nav-user {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
}

.nav-user-avatar {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: rgba(var(--brand-rgb, 6, 182, 212), 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand);
}

.nav-user-info {
  flex: 1;
  min-width: 0;
}

.nav-user-name {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-user-status {
  font-size: 10px;
  color: #22c55e;
}

.nav-version {
  margin-top: var(--space-2);
  opacity: 0.6;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Mobile overlay enhancements */
/* Tier enforcement styles */
.nav-link-disabled {
  opacity: 0.5;
  cursor: not-allowed;
  position: relative;
}

.nav-link-disabled:hover {
  background: var(--surface-secondary) !important;
  transform: none !important;
}

.nav-link-disabled .nav-icon,
.nav-link-disabled .nav-label {
  color: var(--text-tertiary) !important;
}

.nav-tier-badge {
  position: absolute;
  top: 6px;
  right: 8px;
  color: white;
  font-size: 7px;
  font-weight: 700;
  padding: 2px 4px;
  border-radius: 3px;
  line-height: 1;
  letter-spacing: 0.05em;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  text-transform: uppercase;
  min-width: 20px;
  text-align: center;
}

/* Essential tier badge - green gradient */
.nav-link[data-tier="ESSENTIAL"] .nav-tier-badge {
  background: linear-gradient(135deg, #10b981, #059669);
}

/* Plus tier badge - blue gradient */
.nav-link[data-tier="PLUS"] .nav-tier-badge {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
}

/* Pro tier badge - purple gradient */
.nav-link[data-tier="PRO"] .nav-tier-badge {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

@media (max-width: 1024px) {
  .NavRail {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: var(--z-50);
    transform: translateX(-100%);
    transition: transform var(--duration-300) var(--ease-out);
    box-shadow: var(--shadow-2xl);
  }

  .NavRail.open {
    transform: translateX(0);
  }

  .NavRail::before {
    opacity: 0.6;
  }
}

/* ==========================================
   COLLAPSED NAV RAIL (icon-only mode)
   Desktop only (>1024px). Toggle via .nav-collapsed on .AppShell
   ========================================== */

@media (min-width: 1025px) {
  /* Smooth transitions on all animatable nav elements */
  .NavRail {
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    width: 240px;
    overflow: hidden;
  }

  .nav-link {
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .nav-label {
    transition: opacity 0.2s ease, width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    overflow: hidden;
  }

  .nav-icon {
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
  }

  .nav-icon svg {
    transition: width 0.25s ease, height 0.25s ease;
  }

  .nav-header {
    transition: padding 0.25s ease, justify-content 0.25s ease;
  }

  .nav-logo-img {
    transition: transform 0.25s ease, height 0.25s ease;
  }

  .nav-user {
    transition: justify-content 0.25s ease;
  }

  .nav-user-info,
  .nav-user-name,
  .nav-user-status,
  .nav-version,
  .nav-tier,
  .nav-demo-toggle,
  #demoModeStatus {
    transition: opacity 0.15s ease;
  }

  /* ═══ COLLAPSED RAIL ═══ */
  .nav-collapsed .NavRail {
    width: 76px;
    padding: 14px 0;
  }

  .nav-collapsed .nav-label {
    opacity: 0;
    width: 0;
    overflow: hidden;
  }

  .nav-collapsed .nav-list {
    padding: 6px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
  }

  .nav-collapsed .nav-link {
    justify-content: center;
    padding: 0;
    gap: 0;
    border-radius: 10px;
    width: 44px;
    height: 44px;
    margin: 1px auto;
    border: 1px solid transparent;
    color: #64748b;
  }

  .nav-collapsed .nav-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #cbd5e1;
  }

  .nav-collapsed .nav-link.active {
    background: rgba(94, 173, 184, 0.1);
    color: #5eadb8;
    border-color: rgba(94, 173, 184, 0.15);
  }

  .nav-collapsed .nav-link.active::before { display: none; }
  .nav-collapsed .nav-link::before { display: none; }

  .nav-collapsed .nav-icon { font-size: 18px; }
  .nav-collapsed .nav-icon svg { width: 18px; height: 18px; }

  .nav-collapsed .nav-divider {
    width: 28px;
    margin: 8px auto;
  }

  /* Bottom cluster */
  .nav-collapsed .nav-footer {
    align-items: center;
    padding: 0 10px;
    gap: 2px;
  }

  .nav-collapsed .nav-link-validator {
    width: 44px; height: 44px;
    margin: 0 auto 4px;
    justify-content: center;
    padding: 0;
    border-radius: 10px;
  }

  .nav-collapsed .nav-collapse-btn {
    width: 36px; height: 28px;
    margin: 0 auto 4px;
    justify-content: center;
    border-radius: 6px;
    opacity: 0.3;
  }
  .nav-collapsed .nav-collapse-btn:hover { opacity: 0.7; }

  .nav-collapsed .nav-user {
    justify-content: center;
    padding: 4px 0;
  }

  .nav-collapsed .nav-social-row {
    justify-content: center;
    gap: 6px;
    padding: 4px 0;
  }

  .nav-collapsed .nav-header {
    justify-content: center !important;
    padding: 8px !important;
  }

  .nav-collapsed .nav-header > div:last-child {
    opacity: 0;
    pointer-events: none;
    position: absolute;
    overflow: hidden;
  }

  .nav-collapsed .nav-logo-img {
    transform: none;
    height: 24px;
    transform-origin: center center;
  }

  .nav-collapsed .nav-logo {
    justify-content: center;
    width: 100%;
  }

  .nav-collapsed .nav-footer {
    align-items: center;
  }

  .nav-collapsed .nav-demo-toggle,
  .nav-collapsed .nav-user-info,
  .nav-collapsed .nav-user-name,
  .nav-collapsed .nav-user-status,
  .nav-collapsed .nav-version,
  .nav-collapsed .nav-legal,
  .nav-collapsed .nav-tier,
  .nav-collapsed .user-dropdown-menu,
  .nav-collapsed #demoModeStatus {
    opacity: 0;
    pointer-events: none;
    position: absolute;
    overflow: hidden;
    width: 0;
    height: 0;
  }

  .nav-collapsed .nav-user {
    justify-content: center;
  }

  .nav-collapsed .nav-list {
    padding-right: 0;
  }

  /* Collapse toggle button */
  .nav-collapse-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md, 8px);
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 8px;
    margin: var(--space-2) 0;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
  }

  .nav-collapse-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.15);
  }

  .nav-collapse-btn svg {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
  }

  .nav-collapsed .nav-collapse-btn {
    background: rgba(var(--brand-rgb, 6, 182, 212), 0.1);
    border-color: rgba(var(--brand-rgb, 6, 182, 212), 0.25);
    color: var(--brand);
    width: 40px;
    height: 40px;
    padding: 0;
    margin: var(--space-2) auto;
    border-radius: 50%;
  }

  .nav-collapsed .nav-collapse-btn:hover {
    background: rgba(var(--brand-rgb, 6, 182, 212), 0.2);
    border-color: rgba(var(--brand-rgb, 6, 182, 212), 0.4);
  }

  .nav-collapsed .nav-collapse-btn svg {
    transform: rotate(180deg);
  }

  /* Validator — strip special styling when collapsed, just show icon */
  .nav-collapsed .nav-link-validator {
    background: none !important;
    border: none !important;
    margin-top: 0;
  }

  /* Hide active dot indicator when collapsed (overridden by tooltip) */
  .nav-collapsed .nav-link.active::after {
    width: auto;
    height: auto;
    background: none;
    border-radius: 0;
    box-shadow: none;
    right: auto;
  }

  /* Tooltip on hover when collapsed */
  .nav-collapsed .nav-link {
    position: relative;
  }

  .nav-collapsed .nav-link::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(100% + 12px);
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-surface);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
    border: 1px solid var(--border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    z-index: 100;
  }

  .nav-collapsed .nav-link:hover::after {
    opacity: 1;
  }
}

@media (max-width: 1024px) {
  .nav-collapse-btn {
    display: none !important;
  }
}

/* Page Tabs - Shared styles for all pages with tabbed navigation */
.page-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2rem;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
}

.page-tabs::-webkit-scrollbar {
  display: none; /* Chrome/Safari */
}

.page-tab {
  background: none;
  border: none;
  padding: 12px 20px;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  flex-shrink: 0;
  min-height: 44px; /* iOS touch target minimum */
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
}

.page-tab:hover {
  color: var(--text-primary);
  background: var(--color-bg-secondary);
}

.page-tab.active {
  border-bottom-color: var(--brand);
  color: var(--brand);
  font-weight: 600;
}

.page-tab-content {
  display: none;
  overflow-x: hidden;
  max-width: 100%;
}

.page-tab-content.active {
  display: block;
}

/* ==========================================
   PILL TABS VARIANT (Dex Alpha style)
   Apply class="page-tabs page-tabs--pill" to container
   ========================================== */

.page-tabs--pill {
  gap: var(--space-2, 8px);
  background: transparent;
  padding: 0;
  border-radius: 0;
  border: none;
  border-bottom: none;
  margin-bottom: var(--space-3, 12px);
}

.page-tabs--pill .page-tab {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  min-height: auto;
  color: var(--text-secondary);
}

.page-tabs--pill .page-tab:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.page-tabs--pill .page-tab.active {
  background: rgba(6, 182, 212, 0.15);
  color: #67e8f9;
  border: 1px solid rgba(6, 182, 212, 0.25);
}

.page-tabs--pill .page-tab.locked {
  opacity: 0.7;
}

.page-tabs--pill .tab-badge {
  font-size: 9px;
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 6px;
  font-weight: 600;
}

.page-tabs--pill .tab-badge.elite {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  color: white;
}

.page-tabs--pill .tab-badge.pro {
  background: var(--brand);
  color: white;
}

/* Mobile adjustments for pill tabs */
@media (max-width: 768px) {
  .page-tabs--pill {
    flex-wrap: wrap;
    gap: 4px;
  }

  .page-tabs--pill .page-tab {
    flex: 1;
    justify-content: center;
    min-width: 80px;
    padding: 8px 12px;
    font-size: 13px;
  }
}

/* Mobile-specific tab improvements */
@media (max-width: 768px) {
  .page-tabs {
    margin-left: calc(var(--space-3) * -1);
    margin-right: calc(var(--space-3) * -1);
    padding-left: var(--space-3);
    padding-right: var(--space-3);
    gap: 0;
  }

  .page-tab {
    padding: 14px 12px;
    font-size: 0.8125rem;
    min-height: 48px;
    white-space: nowrap;
    flex-shrink: 0;
  }
}

/* Sample Data Toggle Styles */
.demo-toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  cursor: pointer;
}

.demo-toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-muted);
  border-radius: 24px;
  transition: all 0.3s ease;
  border: 1px solid var(--border);
}

.toggle-slider:before {
  content: "";
  position: absolute;
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Checked state - Sample Data ON */
.demo-toggle-switch input:checked + .toggle-slider {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-color: #667eea;
}

.demo-toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(20px);
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.4);
}

/* Hover effects */
.demo-toggle-switch:hover .toggle-slider {
  opacity: 0.9;
}

.demo-toggle-switch input:checked + .toggle-slider:hover {
  background: linear-gradient(135deg, #7c8fef 0%, #8a5fb5 100%);
}

/* Focus state for accessibility */
.demo-toggle-switch input:focus + .toggle-slider {
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

/* Validator Special Nav Link Styling */
.nav-link-validator {
  background: linear-gradient(135deg, rgba(var(--brand-rgb, 6, 182, 212), 0.12) 0%, rgba(139, 92, 246, 0.08) 100%);
  border: 1px solid rgba(var(--brand-rgb, 6, 182, 212), 0.25);
  margin-top: var(--space-2);
}

.nav-link-validator:hover {
  background: linear-gradient(135deg, rgba(var(--brand-rgb, 6, 182, 212), 0.2) 0%, rgba(139, 92, 246, 0.12) 100%);
  border-color: rgba(var(--brand-rgb, 6, 182, 212), 0.4);
}

.nav-link-validator.active {
  background: linear-gradient(135deg, rgba(var(--brand-rgb, 6, 182, 212), 0.25) 0%, rgba(139, 92, 246, 0.15) 100%);
  border-color: var(--brand);
}