/* Tab Styling - Minimal and elegant */
.nav-tabs {
  border-bottom: 1px solid var(--border-color);
}

.nav-tabs .nav-link {
  font-weight: 500;
  color: var(--text-muted);
  border: none;
  padding: var(--spacing-md) var(--spacing-lg);
  transition: var(--transition-standard);
  position: relative;
  font-size: 0.875rem;
  letter-spacing: 0.01em;
}

.nav-tabs .nav-link:hover {
  color: var(--text-dark);
  background-color: var(--background-muted);
  border: none;
}

.nav-tabs .nav-link.active {
  color: var(--primary-color);
  background-color: transparent;
  border: none;
  font-weight: 600;
}

.nav-tabs .nav-link.active:after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-color);
  animation: fadeIn 0.2s ease;
}

/* Backtester results selector: flat frosted sticky pills */
.backtester-results-tabs-shell {
  position: relative;
  padding-bottom: 0.75rem;
  overflow: visible !important;
}

#all-backtester-plots {
  overflow: visible !important;
}

.backtester-results-tabs-shell #backtester-results-tabs,
.backtester-results-tabs-shell #backtester-results-tabs.nav,
.backtester-results-tabs-shell #backtester-results-tabs.nav-tabs,
.backtester-results-tabs-shell #backtester-results-tabs.nav-pills,
.backtester-results-tabs-shell #backtester-results-tabs > .nav,
.backtester-results-tabs-shell #backtester-results-tabs > .nav-tabs,
.backtester-results-tabs-shell #backtester-results-tabs > .nav-pills,
.backtester-results-tabs-shell #backtester-results-tabs .nav.nav-tabs:first-child,
.backtester-results-tabs-shell #backtester-results-tabs .nav.nav-pills:first-child {
  border-bottom: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.5rem;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(212, 212, 216, 0.82);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: 0 8px 20px rgba(9, 9, 11, 0.07), inset 0 1px 0 rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px) saturate(120%);
  -webkit-backdrop-filter: blur(10px) saturate(120%);
  position: sticky;
  top: calc(env(safe-area-inset-top, 0px) + 0.6rem);
  z-index: 1060;
}

.backtester-results-tabs-shell .backtester-results-tabs-placeholder {
  display: block;
  width: 100%;
  height: 0;
  pointer-events: none;
}

.backtester-results-tabs-shell #backtester-results-tabs.backtester-tabs-fixed {
  position: fixed !important;
  top: calc(env(safe-area-inset-top, 0px) + 0.6rem) !important;
  left: var(--bt-tabs-left, 0px) !important;
  width: var(--bt-tabs-width, auto) !important;
  z-index: 1080 !important;
}

.backtester-results-tabs-shell #backtester-results-tabs .tab-content {
  width: 100%;
  padding-top: 0.9rem;
}

.backtester-results-tabs-shell #backtester-results-tabs > .nav-item,
.backtester-results-tabs-shell #backtester-results-tabs .nav-item {
  margin-bottom: 0;
}

.backtester-results-tabs-shell #backtester-results-tabs > .nav-item > .nav-link,
.backtester-results-tabs-shell #backtester-results-tabs .nav-link {
  border: 1px solid var(--bt-tab-border, rgba(207, 211, 217, 0.9)) !important;
  border-radius: 999px !important;
  background: var(--bt-tab-bg, rgba(255, 255, 255, 0.58)) !important;
  color: var(--bt-tab-color, #3f3f46) !important;
  font-weight: 600;
  font-size: 0.93rem;
  padding: 0.5rem 1.02rem;
  line-height: 1.1;
  white-space: nowrap;
  box-shadow: 0 1px 2px rgba(9, 9, 11, 0.07);
  transition: all 0.18s ease;
}

.backtester-results-tabs-shell #backtester-results-tabs > .nav-item > .nav-link:hover,
.backtester-results-tabs-shell #backtester-results-tabs .nav-link:hover {
  border-color: var(--bt-tab-hover-border, rgba(184, 190, 199, 0.95)) !important;
  background: var(--bt-tab-hover-bg, rgba(255, 255, 255, 0.76)) !important;
  color: #18181b !important;
  transform: translateY(-1px);
}

.backtester-results-tabs-shell #backtester-results-tabs > .nav-item > .nav-link.active,
.backtester-results-tabs-shell #backtester-results-tabs .nav-link.active {
  border-color: var(--bt-tab-active-border, rgba(74, 77, 85, 0.92)) !important;
  background: var(--bt-tab-active-bg, rgba(86, 92, 104, 0.92)) !important;
  color: var(--bt-tab-active-color, #ffffff) !important;
  box-shadow: 0 6px 14px rgba(9, 9, 11, 0.18);
  transform: translateY(-0.5px);
}

.backtester-results-tabs-shell #backtester-results-tabs > .nav-item > .nav-link.active:after,
.backtester-results-tabs-shell #backtester-results-tabs .nav-link.active:after {
  display: none !important;
}

/* Mobile Navbar Component - Glassmorphism */
.mobile-navbar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  background: var(--glass-bg-dark);
  box-shadow: 0 -2px 20px rgba(0, 0, 0, 0.12);
  z-index: 1600;
  /* above cards, below dropdown menus */
  justify-content: space-around;
  padding: var(--spacing-sm) 0;
  border-top: 1px solid var(--glass-border);
}

/* Show mobile navbar on mobile devices */
@media (max-width: 767.98px) {
  .mobile-navbar {
    display: flex !important;
  }
}

/* Mobile navbar buttons */
.mobile-nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-md);
  transition: var(--transition-standard);
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 500;
  text-align: center;
  text-align: center;
  flex: 1;
  /* Changed from width: 25% to flex: 1 to support dynamic number of items */
  width: auto;
  min-width: 0;
  /* Allow shrinking */
}

/* Icon styling */
.mobile-nav-icon {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
  transition: var(--transition-standard);
}

/* Active button styling - Glassmorphism */
.mobile-nav-btn.active {
  color: var(--primary-color);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow-light);
}

/* Special styling for donate button */
.mobile-nav-btn.btn-donate {
  color: var(--primary-color);
}

/* Tap effect */
.mobile-nav-btn:active {
  transform: scale(0.95);
}

/* Mobile tabs styling */
.mobile-tabs {
  width: 100%;
}

/* Accessibility improvements */
.btn:focus,
.form-control:focus,
.nav-link:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(9, 9, 11, 0.1);
}

@media (min-width: 768px) {

  /* Mobile navbar should be hidden on desktop */
  .mobile-navbar {
    display: none;
  }
}

@media (max-width: 768px) {
  #desktop-tabs-wrapper {
    display: none !important;
  }

  #mobile-tabs-wrapper {
    display: block !important;
  }

  #mobile-tabs-wrapper .btn-group,
  #mobile-tabs-wrapper .btn-nav {
    width: 100% !important;
    min-width: 0;
    font-size: 0.85rem;
    padding: 0.5rem 0.2rem;
    border-radius: 0;
    background: none;
    box-shadow: none;
  }

  #mobile-tabs-wrapper .btn-nav {
    flex: 1 1 0;
    margin: 0;
    border: none;
    border-radius: 0 !important;
    background: var(--background-white) !important;
    color: var(--primary-color) !important;
    font-weight: 500;
    min-width: 0;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  #mobile-tabs-wrapper .btn-nav:active,
  #mobile-tabs-wrapper .btn-nav.active {
    background: var(--primary-color) !important;
    color: #fff !important;
  }
}

@media (min-width: 769px) {
  #desktop-tabs-wrapper {
    display: block !important;
  }

  #mobile-tabs-wrapper {
    display: none !important;
  }
}

/* Force override for the DropdownMenu button to remove Bootstrap btn-secondary styles */
#mobile-nav-dropup button.dropdown-toggle {
  background-color: transparent !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  padding: 6px !important;
  color: var(--text-muted);
  /* Overridable by inline style */
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  height: 100% !important;
  width: 100% !important;
  margin: 0 !important;
  border-radius: var(--border-radius-md) !important;
}

#mobile-nav-dropup button.dropdown-toggle:active,
#mobile-nav-dropup button.dropdown-toggle:focus,
#mobile-nav-dropup button.dropdown-toggle:hover {
  background-color: var(--glass-bg) !important;
  color: var(--primary-color) !important;
}

/* Hide the caret (arrow) if it persists */
#mobile-nav-dropup button.dropdown-toggle::after {
  display: none !important;
}