:root {
  --primary-color: #f38020; /* Cloudflare orange */
  --secondary-color: #2c7cb0;
  --dark-color: #333;
  --light-color: #f4f4f4;
  --danger-color: #dc3545;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --info-color: #17a2b8;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  background-color: var(--light-color);
  color: var(--dark-color);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

header {
  background-color: var(--primary-color);
  color: white;
  padding: 1rem 0;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: bold;
}

nav ul {
  display: flex;
  list-style: none;
}

nav ul li {
  margin-left: 1rem;
}

nav ul li a {
  color: white;
  text-decoration: none;
  padding: 0.5rem;
  transition: all 0.3s ease;
}

nav ul li a:hover {
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
}

.main-content {
  padding: 2rem 0;
}

.card {
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-header {
  border-bottom: 1px solid #eee;
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-title {
  font-size: 1.25rem;
  font-weight: bold;
}

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s ease;
  text-decoration: none;
}

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

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

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

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

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

.btn:hover {
  opacity: 0.9;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
}

.alert {
  padding: 1rem;
  border-radius: 4px;
  margin-bottom: 1rem;
}

.alert-danger {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.alert-success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.alert-warning {
  background-color: #fff3cd;
  color: #856404;
  border: 1px solid #ffeeba;
}

.alert-info {
  background-color: #d1ecf1;
  color: #0c5460;
  border: 1px solid #bee5eb;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

table th,
table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid #ddd;
}

table th {
  background-color: #f8f9fa;
  font-weight: 600;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

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

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

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

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

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

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

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
}

.stat-card {
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: bold;
  margin: 0.5rem 0;
  color: var(--primary-color);
}

.stat-label {
  font-size: 1rem;
  color: #666;
}

.tabs {
  display: flex;
  border-bottom: 1px solid #ddd;
  margin-bottom: 1rem;
}

.tab {
  padding: 0.5rem 1rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab.active {
  border-bottom: 2px solid var(--primary-color);
  font-weight: 600;
}

.tab-content {
  display: none;
}

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

footer {
  background-color: var(--dark-color);
  color: white;
  padding: 1rem 0;
  text-align: center;
  margin-top: 2rem;
}

/* Login page styles */
.login-container {
  max-width: 400px;
  margin: 5rem auto;
  padding: 2rem;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.login-logo {
  text-align: center;
  margin-bottom: 2rem;
}

/* Responsive styles */
@media (max-width: 768px) {
  header .container {
    flex-direction: column;
    text-align: center;
  }
  
  nav ul {
    margin-top: 1rem;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
}