:root {
  --primary-color: #1e3a8a;
  --primary-dark: #1e40af;
  --secondary-color: #64748b;
  --accent-color: #0ea5e9;
  --success-color: #059669;
  --warning-color: #d97706;
  --danger-color: #dc2626;
  --bg-color: #f1f5f9;
  --card-bg: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

.login-page {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-container {
  background: var(--card-bg);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 450px;
  padding: 40px;
  animation: slideUp 0.5s ease-out;
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo {
  width: 80px;
  height: 80px;
  background: var(--primary-color);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: white;
  font-size: 36px;
}

.login-header h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.login-header p {
  color: var(--text-secondary);
  font-size: 16px;
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  font-size: 16px;
  transition: all 0.3s ease;
  background-color: #fafafa;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  background-color: white;
  box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

.form-select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  font-size: 16px;
  background-color: #fafafa;
  cursor: pointer;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary-color);
  color: white;
  width: 100%;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
}

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

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

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

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

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

.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 18px;
}

.main-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

.navbar {
  background: var(--card-bg);
  box-shadow: var(--shadow);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

.navbar-brand-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.navbar-nav {
  display: flex;
  gap: 16px;
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.nav-link:hover {
  color: var(--primary-color);
  background: rgba(30, 58, 138, 0.05);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.dashboard-card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.dashboard-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  margin-bottom: 20px;
}

.card-icon.blue { background: rgba(30, 58, 138, 0.1); color: var(--primary-color); }
.card-icon.green { background: rgba(5, 150, 105, 0.1); color: var(--success-color); }
.card-icon.orange { background: rgba(217, 119, 6, 0.1); color: var(--warning-color); }
.card-icon.cyan { background: rgba(14, 165, 233, 0.1); color: var(--accent-color); }

.card-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.card-description {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.5;
}

.page-header {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 24px 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-title-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-color);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 24px;
}

.form-container {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow);
  max-width: 800px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.table-container {
  background: var(--card-bg);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.table-header {
  padding: 20px 24px;
  background: var(--primary-color);
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.table-responsive {
  overflow-x: auto;
}

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

.data-table th {
  background: #f8fafc;
  padding: 16px;
  text-align: left;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid var(--border-color);
}

.data-table td {
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

.data-table tr:hover {
  background: #f8fafc;
}

.user-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.user-name {
  font-weight: 600;
  color: var(--text-primary);
}

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

.user-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}

.badge-blue { background: rgba(30, 58, 138, 0.1); color: var(--primary-color); }
.badge-green { background: rgba(5, 150, 105, 0.1); color: var(--success-color); }
.badge-orange { background: rgba(217, 119, 6, 0.1); color: var(--warning-color); }

.alert {
  padding: 16px 20px;
  border-radius: 10px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
}

.alert-danger {
  background: rgba(220, 38, 38, 0.1);
  color: var(--danger-color);
  border-left: 4px solid var(--danger-color);
}

.alert-success {
  background: rgba(5, 150, 105, 0.1);
  color: var(--success-color);
  border-left: 4px solid var(--success-color);
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.empty-state-icon {
  font-size: 64px;
  margin-bottom: 16px;
  opacity: 0.5;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  
  .page-header {
    flex-direction: column;
    text-align: center;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .navbar-content {
    flex-direction: column;
    gap: 16px;
  }
  
  .data-table {
    font-size: 14px;
  }
  
  .data-table th,
  .data-table td {
    padding: 12px;
  }
}