/* Flat Design CSS - Hệ Thống Chấm Công v2.0 */

:root {
  /* Colors - Flat Design Palette */
  --primary: #3498db;
  --primary-dark: #2980b9;
  --secondary: #2ecc71;
  --secondary-dark: #27ae60;
  --danger: #e74c3c;
  --danger-dark: #c0392b;
  --warning: #f39c12;
  --warning-dark: #e67e22;
  --info: #1abc9c;
  --success: #2ecc71;
  --dark: #2c3e50;
  --dark-light: #34495e;
  --light: #ecf0f1;
  --white: #ffffff;
  --text: #34495e;
  --text-light: #7f8c8d;
  --border: #bdc3c7;
  --shadow: rgba(0, 0, 0, 0.1);
  --bg-light: #f8f9fa;

  /* Light color variants */
  --success-light: #e8f5e9;
  --danger-light: #ffebee;
  --warning-light: #fff3e0;
  --info-light: #e3f2fd;
  --primary-light: #e3f2fd;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius: 8px;

  /* Transitions */
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  background: var(--light);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Layout */
.app-container {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  background: var(--dark);
  color: var(--white);
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  transition: var(--transition);
  z-index: 1000;
}

.sidebar-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h1 {
  font-size: 1.5rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.sidebar-header .material-icons {
  font-size: 2rem;
  color: var(--primary);
}

.sidebar-nav {
  padding: var(--spacing-md) 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--light);
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
}

.nav-item:hover {
  background: var(--dark-light);
  color: var(--white);
}

.nav-item.active {
  background: var(--primary);
  color: var(--white);
  border-left: 4px solid var(--secondary);
}

.nav-item .material-icons {
  font-size: 24px;
}

.main-content {
  margin-left: 260px;
  flex: 1;
  padding: var(--spacing-lg);
  width: calc(100% - 260px);
}

/* Header */
.page-header {
  background: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px var(--shadow);
  margin-bottom: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.page-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.75rem;
  color: var(--dark);
  font-weight: 500;
}

.page-title .material-icons {
  font-size: 2rem;
  color: var(--primary);
}

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

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 500;
}

/* Cards */
.card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: 0 2px 8px var(--shadow);
  margin-bottom: var(--spacing-lg);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--light);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.card-title .material-icons {
  color: var(--primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  font-family: inherit;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.btn-secondary {
  background: var(--secondary);
  color: var(--white);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--secondary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(46, 204, 113, 0.3);
}

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

.btn-danger:hover:not(:disabled) {
  background: var(--danger-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
}

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

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

.btn-icon {
  padding: 0.5rem;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

.btn-sm .material-icons {
  font-size: 1rem;
}

.btn-warning {
  background: var(--warning);
  color: var(--white);
}

.btn-warning:hover:not(:disabled) {
  background: var(--warning-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(243, 156, 18, 0.3);
}

.btn-info {
  background: var(--info);
  color: var(--white);
}

.btn-info:hover:not(:disabled) {
  background: #16a085;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(26, 188, 156, 0.3);
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--dark);
}

.form-label .material-icons {
  font-size: 20px;
  color: var(--primary);
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-control:disabled {
  background: var(--light);
  cursor: not-allowed;
}

select.form-control {
  cursor: pointer;
}

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

.input-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.input-group .material-icons {
  color: var(--text-light);
}

/* Table */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead {
  background: var(--dark);
  color: var(--white);
}

th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 500;
}

td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--light);
}

tbody tr:hover {
  background: rgba(52, 152, 219, 0.05);
}

/* Stats Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: 0 2px 8px var(--shadow);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px var(--shadow);
}

.stat-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.stat-icon.primary {
  background: rgba(52, 152, 219, 0.1);
  color: var(--primary);
}

.stat-icon.success {
  background: rgba(46, 204, 113, 0.1);
  color: var(--secondary);
}

.stat-icon.warning {
  background: rgba(243, 156, 18, 0.1);
  color: var(--warning);
}

.stat-icon.danger {
  background: rgba(231, 76, 60, 0.1);
  color: var(--danger);
}

.stat-icon.info {
  background: rgba(26, 188, 156, 0.1);
  color: var(--info);
}

.stat-content h3 {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 0.25rem;
}

.stat-content p {
  color: var(--text-light);
  font-size: 0.8rem;
}

.stat-card-compact {
  padding: var(--spacing-md);
  gap: var(--spacing-sm);
}

.stat-card-compact .stat-content h3 {
  font-size: 1.5rem;
}

.stat-card-compact .stat-content p {
  font-size: 0.75rem;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
}

.badge-success {
  background: rgba(46, 204, 113, 0.1);
  color: var(--secondary);
}

.badge-warning {
  background: rgba(243, 156, 18, 0.1);
  color: var(--warning);
}

.badge-danger {
  background: rgba(231, 76, 60, 0.1);
  color: var(--danger);
}

.badge-primary {
  background: rgba(52, 152, 219, 0.1);
  color: var(--primary);
}

.badge-info {
  background: rgba(26, 188, 156, 0.1);
  color: var(--info);
}

.badge-secondary {
  background: rgba(149, 165, 166, 0.1);
  color: var(--text-light);
}

/* Alerts */
.alert {
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.alert .material-icons {
  font-size: 24px;
}

.alert-success {
  background: rgba(46, 204, 113, 0.1);
  color: var(--secondary-dark);
  border-left: 4px solid var(--secondary);
}

.alert-error {
  background: rgba(231, 76, 60, 0.1);
  color: var(--danger-dark);
  border-left: 4px solid var(--danger);
}

.alert-warning {
  background: rgba(243, 156, 18, 0.1);
  color: var(--warning-dark);
  border-left: 4px solid var(--warning);
}

.alert-info {
  background: rgba(52, 152, 219, 0.1);
  color: var(--primary-dark);
  border-left: 4px solid var(--primary);
}

/* Login Page */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

.login-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  width: 100%;
  max-width: 400px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.login-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.login-icon {
  font-size: 4rem;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.login-header h1 {
  font-size: 1.75rem;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.login-header p {
  color: var(--text-light);
}

.login-form .form-group {
  position: relative;
}

.login-form .form-group .material-icons {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
}

.login-form input {
  padding-left: 3rem;
}

/* Remember Me Checkbox */
.remember-me {
  margin: var(--spacing-sm) 0 var(--spacing-md);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  color: var(--text);
  font-size: 0.9rem;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

.checkbox-label .checkmark {
  display: none;
}

/* Auto-login Loading State */
.login-card .auto-login-message {
  text-align: center;
  padding: var(--spacing-lg);
}

.login-card .auto-login-message .spinner {
  margin: 0 auto var(--spacing-md);
}

.login-card .auto-login-message p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* Loading */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
}

.spinner {
  border: 4px solid var(--light);
  border-top: 4px solid var(--primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }

.hidden {
  display: none !important;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1100;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px var(--shadow);
}

.mobile-menu-toggle .material-icons {
  font-size: 1.5rem;
}

/* Overlay for mobile menu */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
}

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

/* Responsive */
@media (max-width: 992px) {
  .sidebar {
    width: 220px;
  }

  .main-content {
    margin-left: 220px;
    width: calc(100% - 220px);
  }

  .sidebar-header h1 {
    font-size: 1.2rem;
  }

  .nav-item {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
  }

  .nav-item .material-icons {
    font-size: 20px;
  }
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .sidebar {
    transform: translateX(-100%);
    width: 260px;
  }

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

  .main-content {
    margin-left: 0;
    width: 100%;
    padding: var(--spacing-sm);
    padding-top: 60px;
  }

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

  .page-header {
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
  }

  .page-title {
    font-size: 1.25rem;
  }

  .page-title .material-icons {
    font-size: 1.5rem;
  }

  .card {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
  }

  .card-header {
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: flex-start;
  }

  .card-title {
    font-size: 1rem;
  }

  /* Compact stat cards for mobile */
  .stat-card {
    padding: var(--spacing-sm);
    gap: var(--spacing-sm);
  }

  .stat-icon {
    width: 36px;
    height: 36px;
    font-size: 1.2rem;
  }

  .stat-icon .material-icons {
    font-size: 1.2rem;
  }

  .stat-content h3 {
    font-size: 1.25rem;
  }

  .stat-content p {
    font-size: 0.7rem;
  }

  .stat-card-compact {
    padding: var(--spacing-xs);
    gap: var(--spacing-xs);
  }

  .stat-card-compact .stat-icon {
    width: 32px;
    height: 32px;
  }

  .stat-card-compact .stat-content h3 {
    font-size: 1.1rem;
  }

  .stat-card-compact .stat-content p {
    font-size: 0.65rem;
  }

  /* Compact tables for mobile */
  th, td {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
  }

  /* Forms on mobile */
  .form-control {
    padding: 0.5rem;
    font-size: 0.9rem;
  }

  .btn {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
  }

  .btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
  }

  /* Section titles */
  .section-title {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
  }

  /* User info */
  .user-info {
    gap: var(--spacing-sm);
  }

  .user-avatar {
    width: 32px;
    height: 32px;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .main-content {
    padding: var(--spacing-xs);
    padding-top: 55px;
  }

  .page-header {
    padding: var(--spacing-sm);
  }

  .page-title {
    font-size: 1.1rem;
  }

  .card {
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
  }

  .stat-card {
    flex-direction: row;
  }

  th, td {
    padding: var(--spacing-xs);
    font-size: 0.75rem;
  }

  .badge {
    padding: 0.15rem 0.5rem;
    font-size: 0.7rem;
  }

  .chart-container {
    padding: var(--spacing-sm);
    min-height: 180px;
  }

  .bar-chart {
    height: 120px;
  }

  .chart-legend {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: 0.75rem;
  }
}

/* Dashboard Charts */
.dashboard-charts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.chart-card {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px var(--shadow);
  overflow: hidden;
}

.chart-card .card-header {
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--light);
}

.chart-card .card-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin: 0;
}

.chart-card .card-title .material-icons {
  font-size: 1.25rem;
  color: var(--primary);
}

.chart-container {
  padding: var(--spacing-lg);
  min-height: 250px;
}

/* Bar Chart */
.bar-chart {
  display: flex;
  align-items: flex-end;
  justify-content: space-around;
  height: 200px;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) 0;
}

.bar-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.bar-wrapper {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
}

.bar-stack {
  width: 60%;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: var(--transition);
}

.bar-stack:hover {
  transform: translateY(-2px);
}

.bar-segment {
  width: 100%;
  transition: var(--transition);
  border-radius: 4px 4px 0 0;
}

.bar-segment.bar-ontime {
  background: var(--success);
}

.bar-segment.bar-late {
  background: var(--danger);
}

.bar-value {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dark);
  margin-top: var(--spacing-xs);
}

.bar-label {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: var(--spacing-xs);
}

.bar-date {
  font-weight: 600;
  color: var(--dark);
  font-size: 0.875rem;
}

.chart-legend {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--light);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--text);
}

.legend-color {
  width: 12px;
  height: 12px;
  border-radius: 2px;
}

/* Status Grid */
.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--spacing-md);
}

.status-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  background: var(--light);
  transition: var(--transition);
}

.status-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--shadow);
}

.status-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
}

.status-icon .material-icons {
  font-size: 1.5rem;
  color: white;
}

.status-info {
  width: 100%;
}

.status-count {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 0.25rem;
}

.status-label {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-bottom: 0.25rem;
}

.status-percent {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
}

/* Responsive Charts */
@media (max-width: 768px) {
  .dashboard-charts {
    grid-template-columns: 1fr;
  }

  .bar-chart {
    height: 150px;
  }

  .status-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Pagination */
.pagination-container {
  margin-top: 1.5rem;
  text-align: center;
}

.pagination {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.pagination .btn {
  min-width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

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

.pagination .btn-primary {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.pagination .btn:not(.btn-primary):not(.disabled):hover {
  background: var(--bg-light);
}

.pagination .material-icons {
  font-size: 1.2rem;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: white;
  border-radius: var(--radius);
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

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

.modal-header h3 {
  margin: 0;
  font-size: 1.25rem;
}

.modal-content form {
  padding: var(--spacing-lg);
}

.modal-actions {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: flex-end;
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border);
}

/* Dashboard Enhanced Styles */
.section-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--primary);
}

.section-title .material-icons {
  color: var(--primary);
}

.stats-grid-6 {
  grid-template-columns: repeat(6, 1fr);
}

.stats-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1200px) {
  .stats-grid-6 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .stats-grid-6,
  .stats-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Top List Styles */
.top-list {
  padding: var(--spacing-md);
}

.top-list-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  background: var(--bg-light);
  transition: var(--transition);
}

.top-list-item:hover {
  background: var(--light);
  transform: translateX(4px);
}

.top-rank {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
}

.top-rank.top-3 {
  background: linear-gradient(135deg, #ffd700, #ffb700);
  color: #fff;
}

.top-info {
  flex: 1;
}

.top-name {
  font-weight: 500;
  color: var(--dark);
  font-size: 0.9rem;
}

.top-details {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: 2px;
}

.top-badge {
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* Calendar View for Employee Dashboard */
.calendar-view {
  padding: var(--spacing-md);
}

.week-row {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--light);
}

.week-row:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.week-label {
  width: 180px;
  font-size: 0.85rem;
  color: var(--text-light);
  font-weight: 500;
}

.week-days {
  display: flex;
  gap: var(--spacing-sm);
  flex: 1;
}

.day-cell {
  flex: 1;
  min-width: 50px;
  max-width: 70px;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

.day-cell:hover {
  transform: scale(1.05);
}

.day-name {
  font-size: 0.7rem;
  color: var(--text-light);
  margin-bottom: 4px;
}

.day-cell .material-icons {
  font-size: 1.2rem;
}

.day-ontime {
  background: var(--success-light);
  color: var(--success);
}

.day-late {
  background: var(--danger-light);
  color: var(--danger);
}

.day-early {
  background: var(--warning-light);
  color: var(--warning);
}

.day-present {
  background: var(--info-light);
  color: var(--info);
}

.day-empty {
  background: var(--bg-light);
  color: var(--text-light);
}

.calendar-legend {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-md);
  border-top: 1px solid var(--light);
}

.legend-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 3px;
  margin-right: 6px;
}

/* Stat card small text */
.stat-card small {
  display: block;
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: 4px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .week-label {
    width: 100%;
    margin-bottom: var(--spacing-sm);
  }

  .week-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .week-days {
    width: 100%;
    overflow-x: auto;
  }

  .calendar-legend {
    flex-wrap: wrap;
    gap: var(--spacing-md);
  }
}

/* Error Message */
.error-message {
  background: var(--danger-light);
  color: var(--danger);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  margin-top: var(--spacing-md);
  text-align: center;
  font-size: 0.9rem;
  border: 1px solid var(--danger);
}

/* Login Page Improvements */
.login-form .form-group {
  margin-bottom: var(--spacing-md);
}

.login-form input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-sm) 3rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  transition: var(--transition);
  background: var(--white);
}

.login-form input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.login-form input::placeholder {
  color: var(--text-light);
}

.login-form .btn-primary {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

/* Alert/Toast Messages */
.alert {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px var(--shadow);
  z-index: 9999;
  animation: slideIn 0.3s ease;
  max-width: 400px;
}

.alert-success {
  background: var(--success);
  color: white;
}

.alert-error {
  background: var(--danger);
  color: white;
}

.alert-warning {
  background: var(--warning);
  color: white;
}

.alert-info {
  background: var(--info);
  color: white;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Action Buttons */
.action-buttons {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.action-buttons .btn-sm {
  padding: 0.25rem 0.4rem;
}

/* Hide button text on mobile */
@media (max-width: 768px) {
  .btn-text {
    display: none;
  }

  .action-buttons {
    gap: 0.15rem;
  }

  .action-buttons .btn-sm {
    padding: 0.2rem 0.3rem;
  }

  .action-buttons .btn-sm .material-icons {
    font-size: 0.9rem;
  }

  /* Make tables horizontally scrollable */
  .table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .table-container table {
    min-width: 700px;
  }

  /* Modal responsive */
  .modal-content {
    width: 95%;
    max-height: 85vh;
    margin: 10px;
  }

  .modal-header {
    padding: var(--spacing-md);
  }

  .modal-content form {
    padding: var(--spacing-md);
  }

  .modal-actions {
    flex-direction: column;
  }

  .modal-actions .btn {
    width: 100%;
  }

  /* Chart responsive */
  .dashboard-charts {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .table-container table {
    min-width: 600px;
  }

  .action-buttons .btn-sm {
    padding: 0.15rem 0.25rem;
  }
}