/*
 * AI Email Triage - Design System v2.0
 * Comprehensive redesign with accessibility, animations, and modern patterns
 */

/* ============================================
   CSS VARIABLES - LIGHT THEME (Default)
   ============================================ */
:root {
  /* Primary Colors */
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #dbeafe;
  --color-primary-dark: #1e40af;

  /* Background & Surfaces */
  --color-bg: #f8fafc;
  --color-bg-subtle: #f1f5f9;
  --color-surface: #ffffff;
  --color-surface-hover: #f8fafc;
  --color-surface-active: #f1f5f9;

  /* Borders */
  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;
  --color-border-focus: #2563eb;

  /* Text */
  --color-text: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #94a3b8;
  --color-text-inverse: #ffffff;

  /* Semantic Colors */
  --color-success: #10b981;
  --color-success-light: #d1fae5;
  --color-success-dark: #059669;

  --color-warning: #f59e0b;
  --color-warning-light: #fef3c7;
  --color-warning-dark: #d97706;

  --color-danger: #ef4444;
  --color-danger-light: #fee2e2;
  --color-danger-dark: #dc2626;

  --color-info: #06b6d4;
  --color-info-light: #cffafe;
  --color-info-dark: #0891b2;

  /* Sidebar - FIXED: Better contrast for text-muted */
  --sidebar-width: 240px;
  --sidebar-collapsed-width: 64px;
  --sidebar-bg: #0f172a;
  --sidebar-text: #e2e8f0;
  --sidebar-text-muted: #94a3b8; /* FIXED: Was #64748b, now meets WCAG AA */
  --sidebar-hover: #1e293b;
  --sidebar-active: #2563eb;
  --sidebar-border: #1e293b;

  /* Typography - CHANGED: Geist instead of Inter */
  --font-sans: 'Geist', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;

  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;

  /* Z-index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
  --z-toast: 400;

  /* Touch targets - ADDED */
  --touch-target-min: 44px;
}

/* ============================================
   DARK THEME
   ============================================ */
[data-theme="dark"] {
  --color-bg: #0a0a0b;
  --color-bg-subtle: #111113;
  --color-surface: #18181b;
  --color-surface-hover: #27272a;
  --color-surface-active: #3f3f46;

  --color-border: #27272a;
  --color-border-hover: #3f3f46;

  --color-text: #fafafa;
  --color-text-secondary: #a1a1aa;
  --color-text-muted: #71717a;

  --color-primary-light: #1e3a5f;

  --color-success-light: #064e3b;
  --color-warning-light: #78350f;
  --color-danger-light: #7f1d1d;
  --color-info-light: #164e63;

  --sidebar-bg: #09090b;
  --sidebar-hover: #18181b;
  --sidebar-border: #27272a;
  --sidebar-text-muted: #a1a1aa; /* FIXED: Better contrast in dark mode */

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5);
}

/* System preference detection */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #0a0a0b;
    --color-bg-subtle: #111113;
    --color-surface: #18181b;
    --color-surface-hover: #27272a;
    --color-surface-active: #3f3f46;
    --color-border: #27272a;
    --color-border-hover: #3f3f46;
    --color-text: #fafafa;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;
    --color-primary-light: #1e3a5f;
    --sidebar-bg: #09090b;
    --sidebar-hover: #18181b;
    --sidebar-border: #27272a;
    --sidebar-text-muted: #a1a1aa;
  }
}

/* ============================================
   REDUCED MOTION - Accessibility
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   BASE RESET & GLOBALS
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
}

/* ============================================
   SKIP LINK - Accessibility
   ============================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-weight: 600;
  border-radius: var(--radius-md);
  z-index: calc(var(--z-toast) + 1);
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
}

/* ============================================
   LAYOUT - SIDEBAR + MAIN
   ============================================ */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  z-index: var(--z-sticky);
  transition: transform var(--transition-base);
  overflow: hidden;
}

.sidebar-header {
  padding: var(--space-5);
  border-bottom: 1px solid var(--sidebar-border);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.sidebar-logo {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
}

.sidebar-title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-inverse);
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-4) 0;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-section {
  margin-bottom: var(--space-4);
}

.sidebar-section-title {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--sidebar-text-muted);
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-5);
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  margin: 0 var(--space-2);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  min-height: var(--touch-target-min);
}

.sidebar-link:hover {
  background: var(--sidebar-hover);
  color: var(--color-text-inverse);
}

.sidebar-link.active {
  background: var(--sidebar-active);
  color: var(--color-text-inverse);
}

.sidebar-link-icon {
  width: 18px;
  height: 18px;
  opacity: 0.7;
  flex-shrink: 0;
}

.sidebar-link.active .sidebar-link-icon {
  opacity: 1;
}

/* Sidebar badge counter - ADDED */
.sidebar-link-badge {
  margin-left: auto;
  min-width: 20px;
  height: 20px;
  padding: 0 var(--space-1);
  background: var(--color-danger);
  color: var(--color-text-inverse);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-divider {
  height: 1px;
  background: var(--sidebar-border);
  margin: var(--space-4) var(--space-5);
}

/* Sidebar Action Buttons */
.sidebar-action-btn {
  width: 100%;
  border: none;
  text-align: left;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

.sidebar-action-btn:hover {
  background: var(--sidebar-hover);
}

.sidebar-action-btn.sidebar-action-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.sidebar-action-btn.sidebar-action-primary:hover {
  background: var(--color-primary-hover);
}

.sidebar-action-btn.sidebar-action-primary .sidebar-link-icon {
  opacity: 1;
}

.sidebar-action-btn.sidebar-action-warning {
  color: var(--color-warning);
}

.sidebar-action-btn.sidebar-action-warning:hover {
  background: var(--sidebar-hover);
}

.sidebar-action-btn.loading {
  opacity: 0.6;
  pointer-events: none;
  position: relative;
}

.sidebar-action-btn.loading::after {
  content: '';
  position: absolute;
  right: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  border: 2px solid var(--sidebar-text);
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.sidebar-action-btn.sidebar-action-primary.loading::after {
  border-color: var(--color-text-inverse);
  border-right-color: transparent;
}

.sidebar-footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--sidebar-border);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.sidebar-user:hover {
  background: var(--sidebar-hover);
}

.sidebar-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-inverse);
}

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

.sidebar-user-name {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-inverse);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: var(--text-xs);
  color: var(--sidebar-text-muted);
}

/* Main Content - FIXED: Smooth transition at breakpoint */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left var(--transition-base);
}

.main-header {
  position: sticky;
  top: 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-6);
  display: none; /* Hidden on desktop - only show on mobile */
  align-items: center;
  justify-content: space-between;
  z-index: var(--z-sticky);
  min-height: 60px;
}

.main-body {
  flex: 1;
  padding: var(--space-6);
  width: 100%;
}

/* Mobile sidebar toggle */
.sidebar-toggle {
  display: none;
  padding: var(--space-2);
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  min-width: var(--touch-target-min);
  min-height: var(--touch-target-min);
}

/* FIXED: Smooth sidebar transition without layout shift */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }

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

  .main-content {
    margin-left: 0;
  }

  .sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .main-header {
    display: flex; /* Show on mobile */
  }

  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-sticky) - 1);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }

  .sidebar-overlay.visible {
    opacity: 1;
    visibility: visible;
  }

  .main-body {
    padding: var(--space-4);
  }
}

/* ============================================
   PAGE HEADER
   ============================================ */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.page-title {
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.page-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.page-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition-fast);
}

.card:hover {
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.card-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
}

.card-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ============================================
   STAT CARDS - Enhanced with icons
   ============================================ */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

@media (max-width: 640px) {
  .stat-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
  }
}

.stat-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: all var(--transition-fast);
  overflow: hidden;
}

.stat-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.stat-card.clickable {
  cursor: pointer;
}

.stat-card.clickable:hover {
  border-color: var(--color-primary);
}

/* Stat card icon - improved visibility */
.stat-icon {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 40px;
  height: 40px;
  opacity: 0.25; /* Increased from 0.1 for better visibility */
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.stat-card:hover .stat-icon {
  opacity: 0.4;
  transform: scale(1.05);
}

.stat-icon svg {
  width: 100%;
  height: 100%;
}

.stat-value {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: var(--leading-tight);
  animation: fadeInUp 0.4s ease;
  margin-bottom: var(--space-1);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.stat-value.primary { color: var(--color-primary); }
.stat-value.success { color: var(--color-success); }
.stat-value.warning { color: var(--color-warning); }
.stat-value.danger { color: var(--color-danger); }

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary); /* Better contrast than text-muted */
  margin-top: var(--space-1);
  font-weight: 500;
  letter-spacing: 0.01em;
}

.stat-change {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 500;
  margin-top: var(--space-2);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-full);
}

.stat-change.positive {
  background: var(--color-success-light);
  color: var(--color-success-dark);
}

.stat-change.negative {
  background: var(--color-danger-light);
  color: var(--color-danger-dark);
}

/* ============================================
   BUTTONS - Enhanced with animations
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-height: 36px;
}

/* ADDED: Button hover lift animation */
.btn:hover:not(:disabled) {
  transform: translateY(-1px);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:disabled,
.btn.loading {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* Button loading state - ADDED */
.btn.loading {
  position: relative;
  color: transparent !important;
}

.btn.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.btn-primary.loading::after { border-color: var(--color-text-inverse); border-right-color: transparent; }
.btn-secondary.loading::after { border-color: var(--color-text); border-right-color: transparent; }

/* Button Variants */
.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-surface-hover);
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-sm);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.btn-danger {
  background: var(--color-danger);
  color: var(--color-text-inverse);
  border-color: var(--color-danger);
}

.btn-danger:hover:not(:disabled) {
  background: var(--color-danger-dark);
  border-color: var(--color-danger-dark);
  box-shadow: var(--shadow-md);
}

.btn-success {
  background: var(--color-success);
  color: var(--color-text-inverse);
  border-color: var(--color-success);
}

.btn-success:hover:not(:disabled) {
  background: var(--color-success-dark);
  border-color: var(--color-success-dark);
  box-shadow: var(--shadow-md);
}

/* Button Sizes - FIXED: Touch targets */
.btn-sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  min-height: 32px;
}

@media (max-width: 768px) {
  .btn-sm {
    min-height: var(--touch-target-min);
    padding: var(--space-2) var(--space-3);
  }
}

.btn-lg {
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  min-height: 48px;
}

.btn-icon {
  padding: var(--space-2);
  min-width: 36px;
  min-height: 36px;
}

/* Button Group */
.btn-group {
  display: inline-flex;
}

.btn-group .btn {
  border-radius: 0;
}

.btn-group .btn:first-child {
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.btn-group .btn:last-child {
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.btn-group .btn:not(:last-child) {
  border-right: none;
}

/* ============================================
   BADGES & STATUS - Enhanced styling
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

/* Default/neutral badge */
.badge {
  background: var(--color-bg-subtle);
  color: var(--color-text-secondary);
}

.badge-primary {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.badge-success {
  background: var(--color-success-light);
  color: var(--color-success-dark);
}

.badge-warning {
  background: var(--color-warning-light);
  color: var(--color-warning-dark);
}

.badge-danger {
  background: var(--color-danger-light);
  color: var(--color-danger-dark);
}

.badge-info {
  background: var(--color-info-light);
  color: var(--color-info-dark);
}

.badge-neutral {
  background: var(--color-bg-subtle);
  color: var(--color-text-secondary);
}

/* Status Indicator Dot */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  display: inline-block;
  flex-shrink: 0;
}

.status-dot.success { background: var(--color-success); }
.status-dot.warning { background: var(--color-warning); }
.status-dot.danger { background: var(--color-danger); }
.status-dot.info { background: var(--color-info); }
.status-dot.neutral { background: var(--color-text-muted); }

/* ============================================
   TABLES
   ============================================ */
.table-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

table th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg-subtle);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  vertical-align: middle;
}

table tbody tr:last-child td {
  border-bottom: none;
}

table tbody tr {
  transition: all var(--transition-fast);
}

table tbody tr:hover {
  background: var(--color-surface-hover);
}

/* Row priority colors - ADDED */
table tbody tr.priority-high {
  background: var(--color-danger-light);
}

table tbody tr.priority-high:hover {
  background: #fecaca;
}

table tbody tr.priority-medium {
  background: var(--color-warning-light);
}

table tbody tr.priority-medium:hover {
  background: #fde68a;
}

/* Compact table variant */
.table-compact th,
.table-compact td {
  padding: var(--space-2) var(--space-3);
}

/* Table cell utilities */
.cell-truncate {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cell-nowrap {
  white-space: nowrap;
}

.cell-actions {
  text-align: right;
  white-space: nowrap;
}

/* ADDED: Hide on mobile utility */
.hide-mobile {
  display: table-cell;
}

@media (max-width: 768px) {
  .hide-mobile {
    display: none !important;
  }
}

/* Mobile table - convert to cards */
@media (max-width: 768px) {
  .table-responsive thead {
    display: none;
  }

  .table-responsive tbody tr {
    display: block;
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border);
  }

  .table-responsive tbody td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-2) 0;
    border-bottom: none;
  }

  .table-responsive tbody td::before {
    content: attr(data-label);
    font-weight: 500;
    color: var(--color-text-muted);
  }
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.form-label-required::after {
  content: " *";
  color: var(--color-danger);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  font-family: inherit;
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  min-height: var(--touch-target-min);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: var(--color-border-hover);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right var(--space-2) center;
  background-repeat: no-repeat;
  background-size: 1.5em;
  padding-right: var(--space-8);
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-danger);
  margin-top: var(--space-1);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-danger);
}

/* Checkbox & Radio */
.form-checkbox,
.form-radio {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  min-height: var(--touch-target-min);
}

.form-checkbox input,
.form-radio input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* Custom checkbox styling for better cross-browser support */
.form-checkbox input[type="checkbox"] {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  transition: all var(--transition-fast);
}

.form-checkbox input[type="checkbox"]:checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
  background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3e%3c/svg%3e");
}

.form-checkbox input[type="checkbox"]:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* Form Grid */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

/* ============================================
   TABS - Enhanced with animations
   ============================================ */
.tabs {
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-6);
}

.tabs-list {
  display: flex;
  gap: var(--space-1);
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tabs-trigger {
  position: relative;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  background: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: -1px;
  white-space: nowrap;
  min-height: var(--touch-target-min);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.tabs-trigger:hover {
  color: var(--color-text);
}

.tabs-trigger.active {
  color: var(--color-primary);
}

/* ADDED: Animated tab indicator */
.tabs-trigger::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.tabs-trigger.active::after {
  transform: scaleX(1);
}

/* Tab icon */
.tabs-trigger-icon {
  width: 16px;
  height: 16px;
  opacity: 0.7;
}

.tabs-trigger.active .tabs-trigger-icon {
  opacity: 1;
}

/* Tab status indicator */
.tabs-trigger-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-warning);
}

.tabs-trigger-status.complete {
  background: var(--color-success);
}

.tabs-content {
  display: none;
  animation: fadeIn 0.2s ease;
}

.tabs-content.active {
  display: block;
}

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

/* ============================================
   DROPDOWN & SELECT
   ============================================ */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-1);
  z-index: var(--z-dropdown);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all var(--transition-fast);
}

.dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(4px);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
  min-height: var(--touch-target-min);
}

.dropdown-item:hover {
  background: var(--color-surface-hover);
}

.dropdown-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-1) 0;
}

/* ============================================
   ALERTS & TOASTS
   ============================================ */
.alert {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid;
  margin-bottom: var(--space-4);
}

.alert-success {
  background: var(--color-success-light);
  border-color: var(--color-success);
  color: var(--color-success-dark);
}

.alert-warning {
  background: var(--color-warning-light);
  border-color: var(--color-warning);
  color: var(--color-warning-dark);
}

.alert-danger {
  background: var(--color-danger-light);
  border-color: var(--color-danger);
  color: var(--color-danger-dark);
}

.alert-info {
  background: var(--color-info-light);
  border-color: var(--color-info);
  color: var(--color-info-dark);
}

/* ============================================
   TOAST NOTIFICATIONS - ADDED
   ============================================ */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

@media (max-width: 640px) {
  .toast-container {
    left: var(--space-4);
    right: var(--space-4);
    bottom: var(--space-4);
  }
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: slideInUp 0.3s ease;
  max-width: 400px;
}

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

.toast.hiding {
  animation: slideOutDown 0.3s ease forwards;
}

@keyframes slideOutDown {
  to {
    opacity: 0;
    transform: translateY(20px);
  }
}

.toast-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.toast-content {
  flex: 1;
  min-width: 0;
}

.toast-title {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
}

.toast-message {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

.toast-close {
  padding: var(--space-1);
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.toast-close:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.toast.success { border-left: 4px solid var(--color-success); }
.toast.success .toast-icon { color: var(--color-success); }

.toast.error { border-left: 4px solid var(--color-danger); }
.toast.error .toast-icon { color: var(--color-danger); }

.toast.warning { border-left: 4px solid var(--color-warning); }
.toast.warning .toast-icon { color: var(--color-warning); }

.toast.info { border-left: 4px solid var(--color-info); }
.toast.info .toast-icon { color: var(--color-info); }

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-6);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  opacity: 0.5;
}

.empty-state-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.empty-state-description {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

/* ============================================
   LOADING & SPINNER
   ============================================ */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin 0.6s linear infinite;
}

.spinner-sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

.spinner-lg {
  width: 32px;
  height: 32px;
  border-width: 3px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.skeleton {
  background: linear-gradient(90deg, var(--color-bg-subtle) 25%, var(--color-surface-hover) 50%, var(--color-bg-subtle) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ============================================
   COLLAPSIBLE SECTIONS - ADDED
   ============================================ */
.collapsible {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.collapsible-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-4);
  background: var(--color-surface);
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  text-align: left;
  transition: background var(--transition-fast);
}

.collapsible-trigger:hover {
  background: var(--color-surface-hover);
}

.collapsible-trigger-icon {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.collapsible.open .collapsible-trigger-icon {
  transform: rotate(180deg);
}

.collapsible-content {
  display: none;
  padding: var(--space-4);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-subtle);
}

.collapsible.open .collapsible-content {
  display: block;
  animation: fadeIn 0.2s ease;
}

/* ============================================
   UTILITIES
   ============================================ */
/* Text */
.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }

.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-danger); }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-center { text-align: center; }
.text-right { text-align: right; }

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Links */
.link {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.link:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

/* Spacing */
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }

.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }

.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

/* Flex */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }

/* Grid */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
}

/* Display */
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

/* Width */
.w-full { width: 100%; }

/* Cursor */
.cursor-pointer { cursor: pointer; }

/* Visually hidden but accessible */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================
   THEME TOGGLE
   ============================================ */
.theme-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2);
  background: var(--sidebar-hover);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--sidebar-active);
}

.theme-toggle-icon {
  width: 18px;
  height: 18px;
}

/* ============================================
   MAILBOX SELECTOR - Enhanced with visual cues
   ============================================ */
.mailbox-selector-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: var(--sidebar-hover);
  border: 2px solid var(--sidebar-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.mailbox-selector-wrapper:hover {
  background: var(--sidebar-active);
  border-color: var(--color-primary);
}

.mailbox-selector-wrapper:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.mailbox-selector-icon {
  width: 18px;
  height: 18px;
  color: var(--sidebar-text);
  opacity: 0.8;
  flex-shrink: 0;
  pointer-events: none;
}

.mailbox-select {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background: transparent;
  border: none;
  color: var(--sidebar-text);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  padding: 0 var(--space-3);
  padding-left: calc(var(--space-3) + 18px + var(--space-2));
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  z-index: 1;
}

.mailbox-select:focus {
  outline: none;
}

.mailbox-select option {
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  padding: var(--space-2);
}

.mailbox-dropdown-icon {
  width: 16px;
  height: 16px;
  color: var(--sidebar-text);
  opacity: 0.6;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
  pointer-events: none;
}

.mailbox-selector-wrapper:hover .mailbox-dropdown-icon {
  opacity: 1;
}

/* Current mailbox indicator (prominent in page header) */
.current-mailbox-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: white;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.current-mailbox-indicator svg {
  opacity: 0.9;
}

/* ============================================
   CONFIDENCE BAR - Enhanced
   ============================================ */
.confidence-bar {
  width: 80px;
  height: 8px;
  background: var(--color-bg-subtle);
  border-radius: var(--radius-full);
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}

.confidence-fill {
  height: 100%;
  width: var(--confidence, 0%);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.confidence-fill.confidence-high { background: var(--color-success); }
.confidence-fill.confidence-medium { background: var(--color-warning); }
.confidence-fill.confidence-low { background: var(--color-danger); }

/* Confidence display with text */
.confidence-display {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.confidence-text {
  font-size: var(--text-xs);
  font-weight: 500;
  min-width: 32px;
}

.confidence-text.high { color: var(--color-success); }
.confidence-text.medium { color: var(--color-warning); }
.confidence-text.low { color: var(--color-danger); }

/* ============================================
   TAG PILLS
   ============================================ */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: 500;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.tag:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

/* ============================================
   REVIEW PAGE SPECIFIC
   ============================================ */
.review-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-6);
}

@media (max-width: 1024px) {
  .review-layout {
    grid-template-columns: 1fr;
  }
}

.review-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* ============================================
   FILTERS COLLAPSIBLE
   ============================================ */
.filters-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filters-toggle:hover {
  background: var(--color-surface-hover);
}

.filters-toggle-count {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: 0 var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  min-width: 20px;
  text-align: center;
}

.filters-panel {
  display: none;
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
}

.filters-panel.open {
  display: block;
  animation: fadeIn 0.2s ease;
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  .sidebar,
  .sidebar-overlay,
  .main-header,
  .btn,
  .filters-panel,
  .toast-container {
    display: none !important;
  }

  .main-content {
    margin-left: 0 !important;
  }

  .main-body {
    padding: 0 !important;
    max-width: 100% !important;
  }

  .card {
    border: 1px solid #ddd !important;
    box-shadow: none !important;
    break-inside: avoid;
  }

  table {
    font-size: 10pt;
  }
}