/*
 * AgilePMS - Lavender Light Theme Design System
 * --------------------------------------------
 * A professional, enterprise-grade interface inspired by lavender color schemes.
 */

:root {
  /* Color Palette - Lavender & Slate */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --accent-color: #B4B4D8; /* Pale Lavender from PDF */
  --accent-light: #dadaf0;
  --accent-dark: #8e8eb3;
  --accent-glow: rgba(180, 180, 216, 0.3);
  
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444; /* Red for required/alerts */
  
  /* Borders & Shadows */
  --border-color: #e2e8f0;
  --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);
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  
  /* Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-round: 50%;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease-in-out;
}

/* Reset & Global */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  height: 100vh;
  overflow: hidden;
}

.app-container {
  display: flex;
  height: 100vh;
  width: 100vw;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: var(--spacing-lg);
  z-index: 100;
  transition: all var(--transition-normal);
}

.logo-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-color);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text-primary);
  border: 1px solid var(--accent-dark);
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

/* Tree Explorer Sidebar */
.tree-explorer {
  flex: 1;
  overflow-y: auto;
  margin-right: -8px;
  padding-right: 8px;
}

/* Custom scrollbar for tree-explorer */
.tree-explorer::-webkit-scrollbar {
  width: 6px;
}
.tree-explorer::-webkit-scrollbar-track {
  background: transparent;
}
.tree-explorer::-webkit-scrollbar-thumb {
  background-color: var(--border-color);
  border-radius: 10px;
}

.tree-node {
  display: flex;
  flex-direction: column;
  margin-bottom: 2px;
}

.tree-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 6px var(--spacing-sm);
  cursor: pointer;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  user-select: none;
  font-weight: 500;
}

.tree-item:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.tree-item.active {
  background-color: var(--accent-light);
  color: var(--text-primary);
}

.chevron {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
  color: var(--text-secondary);
}

.chevron svg {
  width: 14px;
  height: 14px;
}

.tree-node.expanded > .tree-item .chevron {
  transform: rotate(90deg);
}

.tree-item .icon {
  width: 18px;
  height: 18px;
}

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

.tree-children {
  display: none;
  flex-direction: column;
  padding-left: 20px;
  margin-left: 14px;
  border-left: 1px solid var(--border-color);
  margin-top: 2px;
}

.tree-node.expanded > .tree-children {
  display: flex;
}

.sidebar-footer {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

.profile {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-round);
  background-color: var(--accent-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  border: 1px solid var(--accent-dark);
}

/* Main Content Area */
.main-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
}

.top-bar {
  margin-bottom: var(--spacing-xl);
}

.breadcrumb {
  display: flex;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.breadcrumb span:not(:last-child)::after {
  content: ">";
  margin-left: var(--spacing-sm);
}

.header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.view-title h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
}

.view-title p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* Buttons */
.btn {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  border: 1px solid var(--border-color);
  font-family: inherit;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  background: #f8fafc;
}

.btn-primary {
  background-color: var(--accent-color);
  border-color: var(--accent-dark);
  color: var(--text-primary);
}

.btn-primary:hover {
  background-color: var(--accent-light);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background-color: #efefef;
  color: #333;
}

.btn-secondary:hover {
  background-color: #e2e2e2;
}

.btn-icon {
  padding: 8px;
  width: 40px;
  height: 40px;
  justify-content: center;
}

.btn-icon svg {
  width: 24px;
  height: 24px;
}

.header-mobile-row {
  display: none;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  z-index: 1050;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.sidebar-overlay.active {
  display: block;
  opacity: 1;
  pointer-events: auto;
}

/* Data Table (PM Style) */
.action-group {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: flex-end;
  align-items: center;
}

.pm-table-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}

.pm-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.pm-table thead th {
  background-color: var(--accent-color);
  color: var(--text-primary);
  text-align: left;
  padding: 12px 16px;
  font-weight: 600;
  border-bottom: 1px solid var(--accent-dark);
}

.pm-table tbody tr {
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition-fast);
}

.pm-table tbody tr:nth-child(even) {
  background-color: #fcfcfd;
}

.pm-table tbody tr:hover {
  background-color: var(--bg-tertiary);
}

.pm-table td {
  padding: 12px 16px;
}

/* Forms & Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease-out;
}

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

@keyframes modalSlideUp {
  from { opacity: 0; transform: translateY(20px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-content {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  width: 95%;
  max-width: 750px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  max-height: 90vh;
  animation: modalSlideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  border: 1px solid var(--border-color);
}

.modal-header {
  padding: var(--spacing-lg);
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-body {
  padding: var(--spacing-lg);
  overflow-y: auto;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.form-group.full-width {
  grid-column: span 2;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  background-color: #fafafa;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-color);
  background-color: #ffffff;
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.required {
  color: var(--danger);
  margin-left: 2px;
}

/* Stat Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  display: block;
  margin-top: var(--spacing-xs);
}

/* Task Tags */
.task-tag {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.tag-feature { background: #dcfce7; color: #166534; }
.tag-bug { background: #fee2e2; color: #991b1b; }
.tag-critical { background: var(--danger); color: white; }
.tag-admin { background: var(--accent-dark); color: white; }

/* Responsive Adjustments */
@media (max-width: 768px) {
  .header-mobile-row {
    display: flex;
    padding: var(--spacing-sm) 0;
    border-bottom: 2px solid var(--accent-light);
    margin-bottom: var(--spacing-lg);
  }

  .sidebar-toggle svg {
    width: 28px;
    height: 28px;
  }

  .sidebar {
    position: fixed;
    left: -280px;
    top: 0;
    bottom: 0;
    width: 280px;
    height: 100vh;
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.15);
    z-index: 1100;
    background-color: var(--bg-secondary);
  }

  .sidebar.open {
    left: 0;
  }
  
  .sidebar-close-btn {
    display: flex !important;
    color: var(--text-primary);
  }

  .nav-item {
    padding: var(--spacing-lg) var(--spacing-md);
    font-size: 1.1rem;
    border-bottom: 1px solid var(--bg-tertiary);
  }
  
  .nav-item.active {
    background-color: var(--accent-light);
    border-left: 4px solid var(--accent-dark);
  }

  .logo-text, .profile-info, .nav-item span {
    display: flex; /* Keep text visible in drawer */
  }

  .main-content {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-group.full-width {
    grid-column: span 1;
  }
}

@media (max-width: 480px) {
  .header-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }

  .top-actions {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }

  .top-actions .btn {
    flex: 1;
    justify-content: center;
  }
}


/* System Codes Tree Table */
.category-row {
  cursor: pointer;
  background-color: var(--bg-secondary) !important;
  border-bottom: 2px solid var(--border-color) !important;
}

.category-row:hover {
  background-color: var(--accent-light) !important;
}

.category-row .chevron-cell {
  width: 40px;
  text-align: center;
}

.category-row .chevron-icon {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-normal);
  color: var(--text-secondary);
}

.category-row.expanded .chevron-icon {
  transform: rotate(90deg);
}

.codes-row {
  display: none;
  background-color: var(--bg-primary);
}

.codes-row.show {
  display: table-row;
}

.codes-row .pm-table {
  margin: 0;
  border: none;
  box-shadow: none;
}

.codes-row .pm-table thead th {
  background-color: var(--bg-tertiary);
  font-size: 0.8rem;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border-color);
}

.codes-row .pm-table tbody tr {
  background-color: var(--bg-primary) !important;
}

.codes-row .pm-table td {
  padding: 8px 16px;
}