/* ============================================
   BridgeWork Design System
   Modern, Professional Dashboard Styling
   ============================================ */

:root {
  /* Brand Colors - Enhanced Palette */
  --brand-primary: #1a1f3a;
  --brand-secondary: #2d3561;
  --brand-accent: #4f5d95;
  --brand-light: #8b95c9;
  
  /* Functional Colors */
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
  
  /* Neutral Palette */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  /* Background & Surface */
  --bg-primary: #f8f9fc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f3f4f6;
  
  /* Text Colors */
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --text-inverse: #ffffff;
  
  /* Borders & Shadows */
  --border-color: #e5e7eb;
  --border-radius-sm: 6px;
  --border-radius-md: 10px;
  --border-radius-lg: 16px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Fira Code', 'Courier New', monospace;
}

/* ============================================
   Base Styles
   ============================================ */

* {
  box-sizing: border-box;
}

body.app-body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Layout Components
   ============================================ */

#wrapper {
  min-height: 100vh;
}

#sidebar-wrapper {
  width: 260px;
  min-height: 100vh;
  background: linear-gradient(180deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base);
  position: fixed;
  left: 0;
  top: 0;
  z-index: 1000;
}

#page-content-wrapper {
  margin-left: 260px;
  width: calc(100% - 260px);
  min-height: 100vh;
  padding: 2rem;
  transition: margin-left var(--transition-base), width var(--transition-base);
}

/* ============================================
   Navigation
   ============================================ */

.navbar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 999;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--brand-primary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.navbar-brand img {
  height: 32px;
  width: auto;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--brand-primary);
  background: var(--gray-100);
}

.nav-link.active {
  color: var(--brand-primary);
  background: var(--gray-100);
}

/* Sidebar Navigation */
#sidebar-wrapper .list-group {
  padding: 1.5rem 0;
}

#sidebar-wrapper .list-group-item {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.85);
  padding: 0.875rem 1.5rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

#sidebar-wrapper .list-group-item:hover {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 1);
  padding-left: 1.75rem;
}

#sidebar-wrapper .list-group-item.active {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  border-left: 3px solid var(--brand-light);
}

#sidebar-wrapper .list-group-item i {
  width: 20px;
  text-align: center;
}

/* ============================================
   Cards & Panels
   ============================================ */

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-header {
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.75rem;
}

.card .display-6 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--brand-primary);
  margin: 0;
  line-height: 1.2;
}

.card .text-muted {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

/* Stat Cards */
.stat-card {
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--brand-accent), var(--brand-light));
}

.stat-card .stat-icon {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
  border-radius: var(--border-radius-md);
  color: var(--brand-accent);
  font-size: 1.5rem;
  opacity: 0.6;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  font-weight: 500;
  padding: 0.625rem 1.25rem;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

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

.btn-primary:hover {
  background: var(--brand-secondary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--gray-200);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--gray-300);
}

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

.btn-success:hover {
  background: #059669;
}

.btn-outline-primary {
  background: transparent;
  color: var(--brand-primary);
  border: 2px solid var(--brand-primary);
}

.btn-outline-primary:hover {
  background: var(--brand-primary);
  color: var(--text-inverse);
}

.btn-sm {
  padding: 0.375rem 0.875rem;
  font-size: 0.875rem;
}

/* Ensure primary and edit buttons always show readable text */
.btn-primary, .btn-edit { color: var(--text-inverse) !important; }

/* Ensure action buttons show icon + text spacing */
.action-btn i, .action-btn .fa-solid { margin-right: 0.5rem; }
.action-btn .btn-text { display: inline-block; }

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: 1.125rem;
}

/* ============================================
   Badges & Labels
   ============================================ */

.badge {
  padding: 0.375rem 0.75rem;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-success {
  background: #d1fae5;
  color: #065f46;
}

.badge-warning {
  background: #fef3c7;
  color: #92400e;
}

.badge-danger {
  background: #fee2e2;
  color: #991b1b;
}

.badge-info {
  background: #dbeafe;
  color: #1e40af;
}

.badge-primary {
  background: #e0e7ff;
  color: #3730a3;
}

/* ============================================
   Forms & Inputs
   ============================================ */

.form-control {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 0.625rem 1rem;
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
  background: var(--bg-secondary);
}

.form-control:focus {
  border-color: var(--brand-accent);
  box-shadow: 0 0 0 3px rgba(79, 93, 149, 0.1);
  outline: none;
}

.form-label {
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

/* ============================================
   Tables
   ============================================ */

.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.table thead th {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 1rem;
  border-bottom: 2px solid var(--border-color);
}

.table tbody td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

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

.table tbody tr:hover {
  background: var(--gray-50);
}

/* ============================================
   Utilities
   ============================================ */

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

.bg-primary { background: var(--brand-primary); }
.bg-secondary { background: var(--bg-secondary); }
.bg-tertiary { background: var(--bg-tertiary); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.rounded-sm { border-radius: var(--border-radius-sm); }
.rounded-md { border-radius: var(--border-radius-md); }
.rounded-lg { border-radius: var(--border-radius-lg); }

/* ============================================
   Animations
   ============================================ */

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

@keyframes slideIn {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.fade-in {
  animation: fadeIn var(--transition-base) ease-out;
}

.slide-in {
  animation: slideIn var(--transition-base) ease-out;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 992px) {
  #sidebar-wrapper {
    transform: translateX(-100%);
  }
  
  #sidebar-wrapper.show {
    transform: translateX(0);
  }
  
  #page-content-wrapper {
    margin-left: 0;
    width: 100%;
  }
}

@media (max-width: 768px) {
  #page-content-wrapper {
    padding: 1rem;
  }
  
  .card .display-6 {
    font-size: 2rem;
  }
  
  .navbar {
    padding: 0.75rem 1rem;
  }
}

@media (max-width: 576px) {
  .card-body {
    padding: 1rem;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ============================================
   Chart Containers
   ============================================ */

.chart-container {
  position: relative;
  height: 300px;
  padding: 1rem;
}

.chart-container canvas {
  max-height: 100%;
}

/* ============================================
   Loading States
   ============================================ */

.skeleton {
  background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s ease-in-out infinite;
  border-radius: var(--border-radius-sm);
}

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

.spinner {
  border: 3px solid var(--gray-200);
  border-top-color: var(--brand-primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 0.8s linear infinite;
}

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

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2000; /* Above everything else */
  transition: opacity var(--transition-fast);
}

/* Navbar Header (to reset default styling if any) */
.navbar-header .navbar {
  margin-left: 260px; /* Offset for the sidebar */
  width: calc(100% - 260px); /* Adjust width for the sidebar */
  transition: margin-left var(--transition-base), width var(--transition-base);
}

/* Responsive adjustments for navbar-header */
@media (max-width: 992px) {
  .navbar-header .navbar {
    margin-left: 0;
    width: 100%;
  }
}

/* Dashboard Kanban Styles */
.kanban-board {
  scrollbar-width: thin;
  scrollbar-color: var(--gray-300) transparent;
}

.kanban-board::-webkit-scrollbar {
  height: 6px;
}

.kanban-board::-webkit-scrollbar-track {
  background: transparent;
}

.kanban-board::-webkit-scrollbar-thumb {
  background-color: var(--gray-300);
  border-radius: 3px;
}

.kanban-card {
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.kanban-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.kanban-cards {
  scrollbar-width: thin;
  scrollbar-color: var(--gray-300) transparent;
}

.kanban-cards::-webkit-scrollbar {
  width: 4px;
}

.kanban-cards::-webkit-scrollbar-track {
  background: transparent;
}

.kanban-cards::-webkit-scrollbar-thumb {
  background-color: var(--gray-300);
  border-radius: 2px;
}