:root {
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary-color: #4b5563;
  --background-color: #f8f9fa;
  --surface-color: #ffffff;
  --text-color: #334155;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --border-color: #e5e7eb;
  --danger-color: #ef4444;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --info-color: #3b82f6;
  --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --border-radius: 0.375rem;
  --transition: all 0.3s ease;
}

body {
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  background-color: var(--background-color);
  color: var(--text-color);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background-color: var(--surface-color);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  padding: 1rem 0;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.5rem;
  font-weight: 600;
  display: flex;
  align-items: center;
}

.logo a {
  color: var(--primary-color);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo img {
  height: 32px;
}

nav ul {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 2rem;
}

nav ul li a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
  transition: var(--transition);
}

nav ul li a:hover {
  color: var(--primary-color);
}

nav ul li a.active {
  color: var(--primary-color);
}

nav ul li a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-color);
  border-radius: 2px;
}

.user-menu {
  position: relative;
  margin-left: auto;
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  margin-right: 0.5rem;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.5rem;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--primary-color);
  font-weight: 600;
  margin-top: 0;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary-dark);
}

.card {
  background-color: var(--surface-color);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin-bottom: 1.5rem;
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.card-header {
  background-color: var(--primary-color);
  color: white;
  padding: 1rem 1.5rem;
  font-weight: 600;
  font-size: 1.125rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 0;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: 1px solid transparent;
  border-radius: var(--border-radius);
  transition: var(--transition);
  cursor: pointer;
  background-color: var(--primary-color);
  color: white;
}

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

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  border-radius: 0.25rem;
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1.125rem;
}

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

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

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

.btn-success:hover {
  background-color: #0da271;
}

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

.btn-warning:hover {
  background-color: #d97706;
}

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

.btn-danger:hover {
  background-color: #dc2626;
}

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

.btn-info:hover {
  background-color: #2563eb;
}

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

.btn-secondary:hover {
  background-color: #374151;
}

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

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

.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: 9999px;
}

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

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

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

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

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

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

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

.table th, .table td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.table th {
  background-color: #f9fafb;
  font-weight: 600;
  text-align: left;
  color: var(--secondary-color);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

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

.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }
  
  .navbar {
    position: relative;
  }
  
  nav ul {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--surface-color);
    box-shadow: var(--box-shadow);
    padding: 1rem;
    z-index: 10;
  }
  
  nav ul.open {
    display: flex;
  }
  
  .user-menu {
    margin-left: 0;
  }
  
  .row {
    flex-direction: column;
    margin: 0;
  }

  .col-md-4, .col-md-6, .col-md-8, .col-md-3 {
    width: 100%;
    padding: 0 10px;
    margin-bottom: 15px;
  }
  
  .table-responsive {
    margin: 0 -10px;
  }
  
  .card {
    margin-bottom: 1rem;
  }
  
  .display-4 {
    font-size: 1.8rem;
    line-height: 1.3;
  }
  
  .d-flex {
    flex-wrap: wrap;
  }
  
  .btn {
    margin-bottom: 0.5rem;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
  
  .alert {
    padding: 0.75rem;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 10px;
  }
  
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.35rem; }
  h3 { font-size: 1.25rem; }
  
  .navbar .logo span {
    font-size: 1rem;
  }
  
  .logo .logo-image {
    height: 60px !important;
  }
  
  .table th, .table td {
    padding: 0.5rem;
    font-size: 0.8rem;
  }
  
  .card-header, .card-body {
    padding: 1rem;
  }
  
  .dropdown-menu {
    right: -50px;
    min-width: 200px;
  }
}

.dashboard-container {
  padding: 1.5rem 0;
}

.dashboard-header {
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.stats-container {
  margin-bottom: 2rem;
}

.stats-card {
  background-color: var(--surface-color);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  transition: var(--transition);
}

.stats-card .stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: #eef2ff;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-right: 1rem;
}

.stats-card .card-title {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0;
  margin-bottom: 0.25rem;
}

.stats-card .display-4 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-color);
  margin: 0;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: -10px;
}

.col-md-4 {
  width: calc(33.333% - 20px);
  padding: 10px;
  box-sizing: border-box;
}

.col-md-8 {
  width: calc(66.667% - 20px);
  padding: 10px;
  box-sizing: border-box;
}

.empty-state {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary);
}

.empty-state .icon {
  font-size: 3rem;
  color: var(--border-color);
  margin-bottom: 1rem;
}

.empty-state h4 {
  margin-bottom: 0.5rem;
  color: var(--text-color);
}

.empty-state p {
  margin-bottom: 1.5rem;
}

.list-group {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
}

.list-group-item {
  position: relative;
  padding: 1rem 1.5rem;
  background-color: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
}

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

.list-group-item-action:hover {
  background-color: #f9fafb;
  cursor: pointer;
}

.text-muted {
  color: var(--text-secondary);
}

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

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

.me-2 {
  margin-right: 0.5rem;
}

.mb-0 {
  margin-bottom: 0;
}

.mb-1 {
  margin-bottom: 0.25rem;
}

.mb-4 {
  margin-bottom: 1rem;
}

.d-flex {
  display: flex;
}

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

.justify-content-end {
  justify-content: flex-end;
}

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

.gap-2 {
  gap: 0.5rem;
}

.w-100 {
  width: 100%;
}

.mt-2 {
  margin-top: 0.5rem;
}

.p-0 {
  padding: 0;
}

.p-4 {
  padding: 1rem;
}

.dropdown {
  position: relative;
}

.dropdown-toggle {
  display: flex;
  align-items: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--text-color);
  font-size: 0.875rem;
}

.dropdown-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 0.5rem);
  background-color: var(--surface-color);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 0.5rem 0;
  min-width: 180px;
  z-index: 1000;
  display: none;
}

.dropdown-menu.show {
  display: block;
}

.dropdown-menu a, 
.dropdown-item {
  display: flex;
  align-items: center;
  padding: 0.5rem 1rem;
  color: var(--text-color);
  text-decoration: none;
  font-size: 0.875rem;
  transition: var(--transition);
  background: none;
  border: none;
  text-align: left;
  width: 100%;
  cursor: pointer;
}

.dropdown-menu a:hover, 
.dropdown-item:hover {
  background-color: #f9fafb;
  color: var(--primary-color);
}

.dropdown-divider {
  height: 0;
  margin: 0.5rem 0;
  overflow: hidden;
  border-top: 1px solid var(--border-color);
}

.footer {
  background-color: var(--surface-color);
  padding: 2rem 0;
  margin-top: 3rem;
  border-top: 1px solid var(--border-color);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo {
  color: var(--primary-color);
  font-weight: 600;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-text {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.messages {
  margin-bottom: 1.5rem;
}

.alert {
  padding: 1rem;
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  position: relative;
}

.alert i {
  margin-right: 0.75rem;
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--success-color);
}

.alert-info {
  background-color: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: var(--info-color);
}

.alert-warning {
  background-color: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  color: var(--warning-color);
}

.alert-danger {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--danger-color);
}

.close-alert {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  opacity: 0.5;
  transition: var(--transition);
}

.close-alert:hover {
  opacity: 1;
}

/* Auth Form Layout */
.form-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group.half {
    flex: 1;
    min-width: 0; /* Prevents overflow */
}

@media (max-width: 640px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .form-group.half {
        width: 100%;
    }
}