/* =====================================================
   LUG ADMIN CONSOLE - MASTER STYLESHEET
   ===================================================== */

/* GOOGLE FONTS IMPORT */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&family=Oxainium:wght@400;600;700&display=swap');

/* =====================================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ===================================================== */
:root {
  /* COLORS - PRIMARY */
  --primary: #092A54;
  --accent: #CFB53B;
  --accent-hover: #b8a235;

  /* COLORS - TEXT */
  --text-primary: #1a1a2e;
  --text-secondary: #6b7280;

  /* COLORS - BACKGROUNDS */
  --background: #F5F6FA;
  --card-bg: #FFFFFF;
  --card-border: #e5e7eb;

  /* COLORS - STATUS */
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  /* FONTS */
  --font-body: 'Poppins', sans-serif;
  --font-brand: 'Oxainium', sans-serif;

  /* SPACING */
  --spacing-4: 4px;
  --spacing-8: 8px;
  --spacing-12: 12px;
  --spacing-16: 16px;
  --spacing-20: 20px;
  --spacing-24: 24px;
  --spacing-32: 32px;

  /* BORDER RADIUS */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 20px;

  /* SHADOWS */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);

  /* TRANSITIONS */
  --transition-fast: 0.15s ease-in-out;
  --transition-base: 0.2s ease-in-out;
  --transition-slow: 0.3s ease-in-out;
}

/* =====================================================
   RESET & GLOBAL STYLES
   ===================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--background);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* =====================================================
   LAYOUT SYSTEM
   ===================================================== */
.app-layout {
  display: flex;
  flex-direction: row;
  height: 100vh;
  width: 100vw;
}

.sidebar {
  width: 260px;
  background-color: #F8F9FA;
  color: var(--text-primary);
  position: fixed;
  height: 100vh;
  overflow: hidden;
  flex-shrink: 0;
  z-index: 100;
  left: 0;
  top: 0;
  border-right: 1px solid #E5E7EB;
  display: flex;
  flex-direction: column;
}

.main-content {
  flex-grow: 1;
  overflow-y: auto;
  padding: var(--spacing-32);
  margin-left: 260px;
  width: calc(100% - 260px);
}

.top-bar {
  position: sticky;
  top: 0;
  background-color: var(--card-bg);
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-16) var(--spacing-32);
  border-bottom: 1px solid var(--card-border);
  z-index: 10;
}

/* =====================================================
   SIDEBAR STYLES
   ===================================================== */
/* Logo area — fixed height container with padding, logo scales to fit */
.sidebar .logo-area {
  height: 120px;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  text-decoration: none;
  cursor: pointer;
  box-sizing: border-box;
}

.sidebar .logo-area:hover {
  opacity: 0.85;
}

.sidebar .sidebar-logo-img {
  max-width: 100%;
  max-height: 84px;
  width: auto;
  height: 84px;
  object-fit: contain;
  display: block;
}

/* Kill all underlines in sidebar */
.sidebar a,
.sidebar a:visited,
.sidebar a:hover,
.sidebar a:active {
  text-decoration: none;
}

/* Nav section wrapper */
.sidebar .nav-section {
  margin: 0;
}

/* Main nav items — comfortable spacing with collapsible subs */
.sidebar .nav-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  padding: 8px 16px;
  color: var(--text-secondary);
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-base);
  margin: 2px 10px;
  gap: 10px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}

.sidebar .nav-item:hover {
  color: var(--primary);
  background-color: #E8ECF1;
  text-decoration: none;
}

.sidebar .nav-item.active {
  background-color: #E8ECF1;
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
}

.sidebar .nav-icon {
  width: 18px;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Chevron — sits on right edge, rotates on expand */
.sidebar .nav-chevron {
  margin-left: auto;
  flex-shrink: 0;
  transition: transform 0.2s ease;
  opacity: 0.4;
}

.sidebar .nav-item:hover .nav-chevron {
  opacity: 0.7;
}

.sidebar .nav-section.expanded > .nav-item .nav-chevron {
  transform: rotate(180deg);
  opacity: 0.7;
}

/* Collapsible subs container — hidden by default, animated */
.sidebar .nav-subs-container {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease;
}

.sidebar .nav-section.expanded .nav-subs-container {
  max-height: 200px;
}

/* Sub-items — indented, slightly smaller, same highlight shape */
.sidebar .nav-sub-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  padding: 6px 16px 6px 44px;
  color: var(--text-secondary);
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-base);
  margin: 1px 10px;
  gap: 6px;
  font-size: 13px;
  text-decoration: none;
}

.sidebar .nav-sub-item:hover {
  background-color: #E8ECF1;
  color: var(--text-primary);
  text-decoration: none;
}

.sidebar .nav-sub-item.active {
  color: var(--primary);
  font-weight: 500;
  background-color: #E8ECF1;
  text-decoration: none;
}

/* Spacer pushes compliance toward bottom */
.sidebar .nav-spacer {
  flex: 1;
  min-height: 4px;
}

/* Bottom block wraps user + footer with single top border, no internal border */
.sidebar .sidebar-bottom-block {
  border-top: 1px solid #E5E7EB;
  flex-shrink: 0;
}

/* User block */
.sidebar .sidebar-user-block {
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar .sidebar-user-block .user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
}

.sidebar .sidebar-user-block .user-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.3;
}

.sidebar .sidebar-user-block .user-role {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.3;
}

.sidebar .sidebar-user-block .user-org {
  font-size: 10.5px;
  color: var(--text-secondary);
  opacity: 0.7;
  line-height: 1.3;
}

/* Footer — Settings & Help, compact, no border above */
.sidebar .sidebar-footer {
  padding: 2px 0 6px;
  flex-shrink: 0;
}

.sidebar .nav-footer-item {
  padding: 4px 16px;
  font-size: 12.5px;
  color: var(--text-secondary);
  opacity: 0.75;
  margin: 0 10px;
}

.sidebar .nav-footer-item .nav-icon {
  width: 16px;
}

.sidebar .nav-footer-item:hover {
  opacity: 1;
  background-color: #E8ECF1;
}

.sidebar-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 99;
  display: none;
}

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

.sidebar-nav {
  flex: 1;
  overflow-y: hidden;
  padding: 6px 0;
  display: flex;
  flex-direction: column;
}

/* =====================================================
   TOP BAR STYLES
   ===================================================== */
.top-bar .page-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
}

.top-bar .top-bar-actions {
  display: flex;
  flex-direction: row;
  gap: var(--spacing-16);
  align-items: center;
}

.top-bar .notification-bell {
  position: relative;
  cursor: pointer;
  font-size: 20px;
  color: var(--text-secondary);
  transition: color var(--transition-base);
  background: none;
  border: none;
  padding: var(--spacing-8);
  display: flex;
  align-items: center;
  justify-content: center;
}

.top-bar .notification-bell:hover {
  color: var(--text-primary);
}

.top-bar .notification-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: var(--danger);
  color: white;
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.top-bar .user-info {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--spacing-8);
}

.top-bar .user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--accent);
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.top-bar .hamburger {
  display: none;
  width: 40px;
  height: 40px;
  padding: var(--spacing-8);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 20px;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-base);
}

.top-bar .hamburger:hover {
  color: var(--primary);
}

/* =====================================================
   CARDS
   ===================================================== */
.card {
  background-color: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: var(--spacing-24);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--card-border);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(207, 181, 59, 0.3);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: var(--spacing-16);
  color: var(--text-primary);
}

.card-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-12);
}

/* =====================================================
   METRIC CARDS
   ===================================================== */
.metric-card {
  background-color: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: var(--spacing-24);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--card-border);
  transition: all var(--transition-base);
  text-align: center;
}

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

.metric-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-4);
}

.metric-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: var(--spacing-4);
}

.metric-change {
  font-size: 12px;
  font-weight: 500;
  margin-top: var(--spacing-8);
}

.metric-change.positive {
  color: var(--success);
}

.metric-change.negative {
  color: var(--danger);
}

/* =====================================================
   GRID SYSTEM
   ===================================================== */
.grid-1 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-24);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-24);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-24);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-24);
}

.grid-2-1 {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-24);
}

.grid-1-2 {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-24);
}

/* =====================================================
   TABLES
   ===================================================== */
.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.data-table thead th {
  padding: var(--spacing-12) var(--spacing-16);
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  background-color: var(--background);
  border-bottom: 2px solid var(--card-border);
  font-weight: 600;
  position: sticky;
  top: 0;
}

.data-table thead th.sortable {
  cursor: pointer;
  user-select: none;
  position: relative;
  padding-right: 24px;
}

.data-table thead th.sortable::after {
  content: '⇅';
  position: absolute;
  right: 8px;
  opacity: 0.3;
  font-size: 12px;
}

.data-table thead th.sortable.sort-asc::after {
  content: '↑';
  opacity: 0.8;
}

.data-table thead th.sortable.sort-desc::after {
  content: '↓';
  opacity: 0.8;
}

.data-table tbody td {
  padding: var(--spacing-12) var(--spacing-16);
  border-bottom: 1px solid var(--card-border);
  font-size: 14px;
}

.data-table tbody tr:hover {
  background-color: #f9fafb;
}

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

/* =====================================================
   STATUS BADGES
   ===================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-4) var(--spacing-12);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}

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

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

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

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

.badge-neutral {
  background-color: #f3f4f6;
  color: #4b5563;
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  font-family: var(--font-body);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-8);
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--primary);
  font-weight: 600;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--accent-hover);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
  font-weight: 500;
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--primary);
  color: white;
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-secondary);
  border: none;
}

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

.btn-danger {
  background-color: var(--danger);
  color: white;
  font-weight: 600;
}

.btn-danger:hover:not(:disabled) {
  background-color: #dc2626;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 13px;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
}

.btn-icon {
  padding: var(--spacing-8);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
}

/* =====================================================
   FORMS
   ===================================================== */
.form-group {
  margin-bottom: var(--spacing-20);
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: var(--spacing-6);
  color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-family: var(--font-body);
  transition: all var(--transition-base);
  background-color: var(--card-bg);
  color: var(--text-primary);
}

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

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(9, 42, 84, 0.1);
}

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

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background-color: var(--background);
  cursor: not-allowed;
  opacity: 0.6;
}

/* =====================================================
   TABS
   ===================================================== */
.tab-bar {
  display: flex;
  flex-direction: row;
  border-bottom: 2px solid var(--card-border);
  margin-bottom: var(--spacing-24);
  gap: 0;
  overflow-x: auto;
}

.tab-item {
  padding: var(--spacing-12) var(--spacing-20);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-base);
  white-space: nowrap;
  background: none;
  border: none;
  font-family: var(--font-body);
}

.tab-item:hover {
  color: var(--primary);
}

.tab-item.active {
  color: var(--primary);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.tab-content {
  display: none;
}

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

/* =====================================================
   ACTIVITY FEED
   ===================================================== */
.feed-item {
  display: flex;
  flex-direction: row;
  gap: var(--spacing-12);
  padding: var(--spacing-12) 0;
  border-bottom: 1px solid var(--card-border);
}

.feed-item:last-child {
  border-bottom: none;
}

.feed-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent);
  margin-top: 6px;
  flex-shrink: 0;
}

.feed-text {
  font-size: 14px;
  color: var(--text-primary);
  flex-grow: 1;
}

.feed-time {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: var(--spacing-4);
}

/* =====================================================
   AI SUMMARY / ACCENT CARDS
   ===================================================== */
.ai-card {
  background: linear-gradient(135deg, #fff 0%, #fdf9e8 100%);
  border-radius: var(--radius-lg);
  padding: var(--spacing-24);
  border-left: 3px solid var(--accent);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--card-border);
}

.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-4);
  background-color: #fdf9e8;
  color: var(--accent-hover);
  padding: var(--spacing-4) 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: var(--spacing-12);
}

/* =====================================================
   SEARCH BAR
   ===================================================== */
.search-bar {
  position: relative;
  margin-bottom: var(--spacing-24);
}

.search-bar input {
  width: 100%;
  padding: 10px 14px;
  padding-left: 40px;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-family: var(--font-body);
  transition: all var(--transition-base);
  background-color: var(--card-bg);
}

.search-bar input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(9, 42, 84, 0.1);
}

.search-bar .search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  pointer-events: none;
}

/* =====================================================
   FINANCIAL DASHBOARD STYLES
   ===================================================== */
.finance-tile {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  cursor: pointer;
  transition: all var(--transition-base);
}

.finance-tile:hover {
  box-shadow: var(--shadow-md);
}

.finance-tile-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.finance-tile-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.finance-tile-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.finance-tile-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
}

.finance-comparison-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: 12px;
}

.finance-comparison-cell {
  background: var(--card-bg);
  padding: 10px 12px;
  text-align: center;
}

.finance-comparison-label {
  font-size: 10px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-bottom: 4px;
}

.finance-comparison-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.finance-comparison-value.positive {
  color: var(--success);
}

.finance-comparison-value.negative {
  color: var(--danger);
}

/* Expandable drill-down */
.drill-down-section {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.drill-down-section.expanded {
  max-height: 1000px;
}

.drill-down-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  border-bottom: 1px solid var(--card-border);
  font-size: 14px;
}

.drill-down-row:last-child {
  border-bottom: none;
}

.drill-down-category {
  color: var(--text-primary);
}

.drill-down-amount {
  font-weight: 600;
  color: var(--text-primary);
}

/* Filter bar */
.filter-bar {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--background);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-chip:hover,
.filter-chip.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* =====================================================
   UTILITY CLASSES
   ===================================================== */
.flex {
  display: flex;
}

.flex-between {
  display: flex;
  justify-content: space-between;
}

.flex-center {
  display: flex;
  align-items: center;
}

.flex-wrap {
  display: flex;
  flex-wrap: wrap;
}

/* Gap Utilities */
.gap-4 { gap: var(--spacing-4); }
.gap-8 { gap: var(--spacing-8); }
.gap-12 { gap: var(--spacing-12); }
.gap-16 { gap: var(--spacing-16); }
.gap-20 { gap: var(--spacing-20); }
.gap-24 { gap: var(--spacing-24); }
.gap-32 { gap: var(--spacing-32); }

/* Margin Utilities - Top */
.mt-4 { margin-top: var(--spacing-4); }
.mt-8 { margin-top: var(--spacing-8); }
.mt-12 { margin-top: var(--spacing-12); }
.mt-16 { margin-top: var(--spacing-16); }
.mt-20 { margin-top: var(--spacing-20); }
.mt-24 { margin-top: var(--spacing-24); }
.mt-32 { margin-top: var(--spacing-32); }

/* Margin Utilities - Bottom */
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-8 { margin-bottom: var(--spacing-8); }
.mb-12 { margin-bottom: var(--spacing-12); }
.mb-16 { margin-bottom: var(--spacing-16); }
.mb-20 { margin-bottom: var(--spacing-20); }
.mb-24 { margin-bottom: var(--spacing-24); }
.mb-32 { margin-bottom: var(--spacing-32); }

/* Margin Utilities - Horizontal */
.mx-4 { margin-left: var(--spacing-4); margin-right: var(--spacing-4); }
.mx-8 { margin-left: var(--spacing-8); margin-right: var(--spacing-8); }
.mx-12 { margin-left: var(--spacing-12); margin-right: var(--spacing-12); }
.mx-16 { margin-left: var(--spacing-16); margin-right: var(--spacing-16); }
.mx-24 { margin-left: var(--spacing-24); margin-right: var(--spacing-24); }

/* Padding Utilities */
.p-4 { padding: var(--spacing-4); }
.p-8 { padding: var(--spacing-8); }
.p-12 { padding: var(--spacing-12); }
.p-16 { padding: var(--spacing-16); }
.p-20 { padding: var(--spacing-20); }
.p-24 { padding: var(--spacing-24); }
.p-32 { padding: var(--spacing-32); }

/* Text Utilities */
.text-sm { font-size: 13px; }
.text-lg { font-size: 18px; }
.text-muted { color: var(--text-secondary); }
.text-center { text-align: center; }
.text-bold { font-weight: 600; }
.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-info { color: var(--info); }

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

/* Text Overflow */
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.line-clamp-2 {
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.line-clamp-3 {
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

/* =====================================================
   LOADING & EMPTY STATES
   ===================================================== */
.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--card-border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-spinner.sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.loading-spinner.lg {
  width: 48px;
  height: 48px;
  border-width: 4px;
}

.empty-state {
  text-align: center;
  padding: 48px var(--spacing-24);
  color: var(--text-secondary);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-16);
  opacity: 0.5;
}

.empty-state-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-8);
}

.empty-state-text {
  font-size: 14px;
  color: var(--text-secondary);
}

.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

.skeleton.text {
  height: 16px;
  margin-bottom: var(--spacing-12);
}

.skeleton.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.skeleton.card {
  height: 200px;
  border-radius: var(--radius-lg);
}

/* =====================================================
   ANIMATIONS
   ===================================================== */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

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

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

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

.fade-in {
  animation: fadeIn 0.3s ease-in-out;
}

.slide-down {
  animation: slideDown 0.3s ease-in-out;
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */
@media (max-width: 768px) {
  .app-layout {
    flex-direction: column;
  }

  .sidebar {
    position: fixed;
    left: -260px;
    width: 260px;
    height: 100vh;
    transition: transform var(--transition-slow);
    z-index: 1000;
  }

  .sidebar.open {
    transform: translateX(260px);
  }

  .sidebar-overlay {
    display: none;
  }

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

  .main-content {
    margin-left: 0;
    width: 100%;
    padding: var(--spacing-16);
  }

  .top-bar {
    padding: var(--spacing-16);
  }

  .top-bar .hamburger {
    display: flex;
  }

  .top-bar .page-title {
    font-size: 18px;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .grid-2-1,
  .grid-1-2 {
    grid-template-columns: 1fr;
  }

  .data-table {
    display: block;
    overflow-x: auto;
  }

  .data-table thead {
    display: none;
  }

  .data-table tbody,
  .data-table tr,
  .data-table td {
    display: block;
    width: 100%;
  }

  .data-table tbody tr {
    margin-bottom: var(--spacing-16);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-12);
  }

  .data-table td {
    text-align: right;
    padding-left: 50%;
    position: relative;
    border: none;
    border-bottom: 1px solid var(--card-border);
  }

  .data-table td:before {
    content: attr(data-label);
    position: absolute;
    left: var(--spacing-12);
    font-weight: 600;
    color: var(--text-primary);
  }

  .data-table td:last-child {
    border-bottom: none;
  }

  .metric-card {
    padding: var(--spacing-16);
  }

  .metric-value {
    font-size: 24px;
  }

  .card {
    padding: var(--spacing-16);
  }

  .btn-lg {
    padding: 12px 24px;
    font-size: 14px;
  }

  .search-bar input {
    font-size: 16px; /* Prevents zoom on iOS */
  }

  .tab-bar {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

@media (max-width: 480px) {
  .main-content {
    padding: var(--spacing-12);
  }

  .top-bar {
    padding: var(--spacing-12);
    flex-wrap: wrap;
    gap: var(--spacing-12);
  }

  .top-bar .page-title {
    flex-basis: 100%;
    order: -1;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .card {
    padding: var(--spacing-12);
  }

  .metric-value {
    font-size: 20px;
  }

  .btn {
    width: 100%;
  }

  .btn-lg {
    padding: 12px 16px;
  }

  .form-input,
  .form-select,
  .form-textarea {
    font-size: 16px; /* Prevents zoom on iOS */
  }

  .top-bar-actions {
    flex-basis: 100%;
    justify-content: flex-end;
    order: 1;
  }
}

/* =====================================================
   DARK MODE SUPPORT (Optional Future Enhancement)
   ===================================================== */
@media (prefers-color-scheme: dark) {
  /* Can be extended when dark mode is implemented */
}

/* =====================================================
   PRINT STYLES
   ===================================================== */
@media print {
  .sidebar,
  .top-bar,
  .hamburger,
  .sidebar-overlay {
    display: none !important;
  }

  .main-content {
    margin-left: 0;
    width: 100%;
    padding: 0;
  }

  .btn {
    border: 1px solid var(--text-primary);
  }

  body {
    background-color: white;
  }
}