/**
 * Enhanced Sidebar Navigation CSS
 * Modern, professional sidebar with dark mode support and smooth animations
 *
 * @package Trippy's Food Corporation ERP
 * @version 3.0
 */

/* ========================================
   CSS Variables
   ======================================== */
:root {
  /* Enhanced primary color palette */
  --nav-primary: #e11d48;
  --nav-primary-hover: #be185d;
  --nav-primary-light: #fdf2f8;
  --nav-primary-dark: #9f1239;
  --nav-accent: #3b82f6;
  --nav-accent-hover: #2563eb;

  /* Light mode colors */
  --nav-bg-light: linear-gradient(180deg, #ffffff 0%, #f8fafc 50%, #f1f5f9 100%);
  --nav-text-light: #334155;
  --nav-text-hover-light: #0f172a;
  --nav-text-secondary-light: #64748b;
  --nav-bg-hover-light: linear-gradient(135deg, #fef2f8 0%, #fef7f7 100%);
  --nav-border-light: #e2e8f0;
  --nav-shadow-light: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --nav-scroll-track-light: #f1f5f9;
  --nav-scroll-thumb-light: #cbd5e1;
  --nav-scroll-thumb-hover-light: #94a3b8;

  /* Dark mode colors */
  --nav-bg-dark: linear-gradient(180deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
  --nav-text-dark: #e2e8f0;
  --nav-text-hover-dark: #f8fafc;
  --nav-text-secondary-dark: #94a3b8;
  --nav-bg-hover-dark: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  --nav-border-dark: #475569;
  --nav-shadow-dark: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.25);
  --nav-scroll-track-dark: #1e293b;
  --nav-scroll-thumb-dark: #475569;
  --nav-scroll-thumb-hover-dark: #64748b;

  /* Sidebar dimensions */
  --nav-width-expanded: 16rem;
  --nav-width-collapsed: 4rem;
  --nav-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadows and effects */
  --nav-active-shadow: 0 4px 14px 0 rgba(225, 29, 72, 0.3);
  --nav-dropdown-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* ========================================
   Base Sidebar Styles
   ======================================== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: var(--nav-width-expanded);
  background: var(--nav-bg-light);
  border-right: 1px solid var(--nav-border-light);
  box-shadow: var(--nav-shadow-light);
  transition: var(--nav-transition);
  z-index: 40;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, transparent 0%, var(--nav-border-light) 20%, var(--nav-border-light) 80%, transparent 100%);
  pointer-events: none;
}

.sidebar-content {
  padding: 1rem;
  min-height: 100%;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding-bottom: 2rem;
}

/* ========================================
   Navigation Links
   ======================================== */
.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--nav-text-light);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 0.75rem;
  transition: var(--nav-transition);
  position: relative;
  overflow: hidden;
  letter-spacing: 0.01em;
}

.nav-link:hover {
  color: var(--nav-text-hover-light);
  background: var(--nav-bg-hover-light);
  transform: translateX(3px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-link.is-active {
  background: linear-gradient(135deg, var(--nav-primary) 0%, var(--nav-primary-hover) 100%);
  color: #ffffff;
  font-weight: 600;
  box-shadow: var(--nav-active-shadow);
  transform: translateX(2px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-link.is-active::before {
  content: '';
  position: absolute;
  left: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 50%;
  border-radius: 9999px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.7) 100%);
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.5);
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.9; }
  50% { opacity: 0.6; }
}

/* Navigation link shimmer effect */
.nav-link::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.05), transparent);
  transition: left 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover::after {
  left: 100%;
}

.nav-link:active {
  transform: translateX(1px) scale(0.98);
  transition: transform 0.1s ease;
}

.nav-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
  width: 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.nav-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ========================================
   Navigation Dropdowns
   ======================================== */
.nav-dropdown {
  display: flex;
  flex-direction: column;
}

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  width: 100%;
  padding: 0.75rem 1rem;
  color: var(--nav-text-light);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: transparent;
  border: none;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: var(--nav-transition);
  position: relative;
  overflow: hidden;
}

.nav-dropdown-toggle:hover {
  color: var(--nav-text-hover-light);
  background: var(--nav-bg-hover-light);
  transform: translateX(3px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-dropdown-toggle:focus {
  outline: 2px solid var(--nav-primary);
  outline-offset: 2px;
}

.nav-dropdown-toggle::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.05), transparent);
  transition: left 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-dropdown-toggle:hover::after {
  left: 100%;
}

.nav-dropdown-arrow {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.nav-dropdown-toggle[aria-expanded="true"] .nav-dropdown-arrow {
  transform: rotate(180deg);
}

.nav-dropdown.has-active-child .nav-dropdown-toggle {
  color: var(--nav-primary);
  font-weight: 700;
}

/* ========================================
   Floating Dropdowns
   ======================================== */
.floating-dropdowns {
  position: fixed;
  z-index: 9999;
  pointer-events: none;
}

.floating-dropdowns > div,
#floating-dropdowns .dropdown-menu,
#floating-dropdowns .nav-floating-dropdown {
  display: none;
  position: fixed;
  background: #ffffff;
  border: 1px solid var(--nav-border-light);
  border-radius: 0.75rem;
  box-shadow: var(--nav-dropdown-shadow);
  max-height: 80vh;
  overflow-y: auto;
  padding: 0.5rem;
  pointer-events: auto;
  box-sizing: border-box !important;
}

.nav-dropdown-inner {
  display: inline-block;
  width: auto;
  white-space: nowrap;
}

.floating-dropdowns > div.active,
#floating-dropdowns .dropdown-menu.active,
#floating-dropdowns .nav-floating-dropdown.active {
  display: block;
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-0.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nav-dropdown-item {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--nav-text-light);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 0.5rem;
  transition: var(--nav-transition);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.nav-dropdown-item:hover {
  color: var(--nav-text-hover-light);
  background: var(--nav-bg-hover-light);
  transform: translateX(2px);
}

.nav-dropdown-item.is-active {
  background: linear-gradient(135deg, var(--nav-primary) 0%, var(--nav-primary-hover) 100%);
  color: #ffffff;
  font-weight: 600;
  box-shadow: var(--nav-active-shadow);
}

.nav-dropdown-item.is-active::before {
  content: '';
  position: absolute;
  left: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 50%;
  border-radius: 9999px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.7) 100%);
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.5);
}

/* ========================================
   Navigation Separator
   ======================================== */
.nav-separator {
  height: 1px;
  margin: 0.75rem 0;
  background: linear-gradient(90deg, transparent, var(--nav-border-light), transparent);
}

.nav-separator span {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--nav-text-secondary-light);
}

/* ========================================
   Subscription Widget
   ======================================== */
.sidebar-subscription {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--nav-border-light);
}

.subscription-header {
  padding: 0 1rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--nav-text-secondary-light);
}

.subscription-card {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid var(--nav-border-light);
  border-radius: 0.75rem;
  padding: 1rem;
  margin-top: 0.5rem;
}

.subscription-plan {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.plan-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--nav-text-light);
}

.plan-status {
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
  text-transform: uppercase;
}

.plan-status-trial {
  background: #dbeafe;
  color: #1e40af;
}

.plan-status-active {
  background: #d1fae5;
  color: #065f46;
}

.subscription-usage {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.usage-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.usage-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--nav-text-secondary-light);
}

.usage-bar {
  height: 0.5rem;
  background: var(--nav-border-light);
  border-radius: 9999px;
  overflow: hidden;
}

.usage-progress {
  height: 100%;
  border-radius: 9999px;
  transition: width 0.3s ease;
}

.usage-progress-ok {
  background: linear-gradient(90deg, #10b981 0%, #059669 100%);
}

.usage-progress-warning {
  background: linear-gradient(90deg, #f59e0b 0%, #d97706 100%);
}

.usage-progress-exceeded {
  background: linear-gradient(90deg, #ef4444 0%, #dc2626 100%);
}

.subscription-link {
  display: inline-block;
  padding: 0.5rem 0;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--nav-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

.subscription-link:hover {
  color: var(--nav-accent-hover);
  text-decoration: underline;
}

.subscription-alert {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border: 1px solid #fbbf24;
  border-radius: 0.75rem;
  padding: 1rem;
  margin-top: 0.5rem;
}

.subscription-alert p {
  font-size: 0.875rem;
  color: #92400e;
  margin-bottom: 0.5rem;
}

/* ========================================
   Collapsed State
   ======================================== */
.sidebar.collapsed {
  width: var(--nav-width-collapsed);
}

.sidebar.collapsed .nav-label,
.sidebar.collapsed .subscription-header,
.sidebar.collapsed .sidebar-subscription {
  display: none;
}

.sidebar.collapsed .nav-link,
.sidebar.collapsed .nav-dropdown-toggle {
  justify-content: center;
  padding: 0.75rem;
}

.sidebar.collapsed .nav-dropdown-arrow {
  display: none;
}

/* ========================================
   Dark Mode
   ======================================== */
.dark .sidebar,
[data-theme="dark"] .sidebar {
  background: var(--nav-bg-dark);
  border-right-color: var(--nav-border-dark);
  box-shadow: var(--nav-shadow-dark);
}

.dark .sidebar::before,
[data-theme="dark"] .sidebar::before {
  background: linear-gradient(180deg, transparent 0%, var(--nav-border-dark) 20%, var(--nav-border-dark) 80%, transparent 100%);
}

.dark .nav-link,
.dark .nav-dropdown-toggle,
[data-theme="dark"] .nav-link,
[data-theme="dark"] .nav-dropdown-toggle {
  color: var(--nav-text-dark);
}

.dark .nav-link:hover,
.dark .nav-dropdown-toggle:hover,
[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-dropdown-toggle:hover {
  color: var(--nav-text-hover-dark);
  background: var(--nav-bg-hover-dark);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.dark .nav-link::after,
.dark .nav-dropdown-toggle::after,
[data-theme="dark"] .nav-link::after,
[data-theme="dark"] .nav-dropdown-toggle::after {
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03), transparent);
}

.dark .nav-separator,
[data-theme="dark"] .nav-separator {
  background: linear-gradient(90deg, transparent, var(--nav-border-dark), transparent);
}

.dark .nav-separator span,
.dark .subscription-header,
[data-theme="dark"] .nav-separator span,
[data-theme="dark"] .subscription-header {
  color: var(--nav-text-secondary-dark);
}

.dark .sidebar-subscription,
[data-theme="dark"] .sidebar-subscription {
  border-top-color: var(--nav-border-dark);
}

.dark .subscription-card,
[data-theme="dark"] .subscription-card {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  border-color: var(--nav-border-dark);
}

.dark .plan-name,
.dark .usage-label,
[data-theme="dark"] .plan-name,
[data-theme="dark"] .usage-label {
  color: var(--nav-text-dark);
}

.dark .usage-bar,
[data-theme="dark"] .usage-bar {
  background: var(--nav-border-dark);
}

.dark .subscription-alert,
[data-theme="dark"] .subscription-alert {
  background: linear-gradient(135deg, #422006 0%, #451a03 100%);
  border-color: #92400e;
}

.dark .subscription-alert p,
[data-theme="dark"] .subscription-alert p {
  color: #fef3c7;
}

.dark .floating-dropdowns > div,
.dark #floating-dropdowns .dropdown-menu,
.dark #floating-dropdowns .nav-floating-dropdown,
[data-theme="dark"] .floating-dropdowns > div,
[data-theme="dark"] #floating-dropdowns .dropdown-menu,
[data-theme="dark"] #floating-dropdowns .nav-floating-dropdown {
  background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
  border-color: var(--nav-border-dark);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), 0 10px 20px -5px rgba(0, 0, 0, 0.4);
}

.dark .nav-dropdown-item,
[data-theme="dark"] .nav-dropdown-item {
  color: var(--nav-text-dark);
}

.dark .nav-dropdown-item:hover,
[data-theme="dark"] .nav-dropdown-item:hover {
  color: var(--nav-text-hover-dark);
  background: var(--nav-bg-hover-dark);
}

/* ========================================
   Scrollbar Styling
   ======================================== */
.sidebar::-webkit-scrollbar {
  width: 10px;
}

.sidebar::-webkit-scrollbar-track {
  background: var(--nav-scroll-track-light);
  border-radius: 10px;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--nav-scroll-thumb-light);
  border-radius: 10px;
  border: 2px solid var(--nav-scroll-track-light);
}

.sidebar:hover::-webkit-scrollbar-thumb {
  background: var(--nav-scroll-thumb-hover-light);
}

.sidebar {
  scrollbar-width: thin;
  scrollbar-color: var(--nav-scroll-thumb-light) var(--nav-scroll-track-light);
}

.dark .sidebar::-webkit-scrollbar-track,
[data-theme="dark"] .sidebar::-webkit-scrollbar-track {
  background: var(--nav-scroll-track-dark);
}

.dark .sidebar::-webkit-scrollbar-thumb,
[data-theme="dark"] .sidebar::-webkit-scrollbar-thumb {
  background: var(--nav-scroll-thumb-dark);
  border-color: var(--nav-scroll-track-dark);
}

.dark .sidebar:hover::-webkit-scrollbar-thumb,
[data-theme="dark"] .sidebar:hover::-webkit-scrollbar-thumb {
  background: var(--nav-scroll-thumb-hover-dark);
}

.dark .sidebar,
[data-theme="dark"] .sidebar {
  scrollbar-color: var(--nav-scroll-thumb-dark) var(--nav-scroll-track-dark);
}

/* ========================================
   Mobile Styles
   ======================================== */
@media (max-width: 767px) {
  .sidebar,
  aside.sidebar,
  #sidebar {
    top: 80px !important;
    height: calc(100vh - 80px) !important;
    transform: translateX(-100%);
    padding-top: 0 !important;
    margin-top: 0 !important;
  }

  .sidebar.show,
  aside.sidebar.show,
  #sidebar.show {
    transform: translateX(0);
  }

  .sidebar-overlay {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background: rgba(0, 0, 0, 0.5);
    z-index: 39;
    display: none;
    backdrop-filter: blur(4px);
  }

  .sidebar-overlay.show {
    display: block;
  }

  /* Mobile dropdown styling */
  html body .floating-dropdowns > div,
  html body #floating-dropdowns .dropdown-menu,
  html body #floating-dropdowns .nav-floating-dropdown {
    display: inline-block !important;
    width: auto !important;
    min-width: 0 !important;
    max-width: none !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    padding: 0 !important;
  }

  html body #floating-dropdowns .nav-dropdown-inner {
    display: inline-block !important;
    width: auto !important;
    min-width: 10rem !important;
    max-width: calc(100vw - 40px) !important;
    padding: 0.5rem !important;
  }

  html body #floating-dropdowns .nav-dropdown-item {
    display: block !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: nowrap !important;
  }
}

/* ========================================
   Accessibility
   ======================================== */
.nav-link:focus-visible,
.nav-dropdown-toggle:focus-visible {
  outline: 2px solid var(--nav-primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.1);
}

.dark .nav-link:focus-visible,
.dark .nav-dropdown-toggle:focus-visible,
[data-theme="dark"] .nav-link:focus-visible,
[data-theme="dark"] .nav-dropdown-toggle:focus-visible {
  outline-color: #ef4444;
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
}

/* Skip link for screen readers */
.skip-nav {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--nav-primary);
  color: white;
  padding: 8px;
  text-decoration: none;
  z-index: 100;
}

.skip-nav:focus {
  top: 0;
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
  .sidebar,
  .floating-dropdowns,
  .sidebar-overlay {
    display: none !important;
  }
}