body {
  font-family: Arial, sans-serif;
  background-color: #f0f2f5;
  margin: 0;
  padding: 20px;
}

.nav-bar {
  background-color: #007bff;
  padding: 15px;
  border-radius: 10px;
  margin-bottom: 20px;
  text-align: center;
}

.nav-bar button {
  background-color: white;
  color: #007bff;
  border: none;
  padding: 10px 20px;
  margin: 0 10px;
  border-radius: 5px;
  cursor: pointer;
  font-weight: bold;
}

.nav-bar button:hover {
  background-color: #e9ecef;
}

.nav-bar button.active {
  background-color: #0056b3;
  color: white;
}

.container {
  background-color: #fff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
  max-width: 1000px;
  margin: 0 auto;
}

.page {
  display: none;
}

.page.active {
  display: block;
}

h2 {
  text-align: center;
  color: #333;
}

form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

label {
  font-weight: bold;
  color: #555;
}

input, textarea, select {
  padding: 12px;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 14px;
}

button {
  padding: 12px 20px;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 16px;
  font-weight: bold;
}

button:hover {
  background-color: #0056b3;
}

button.danger {
  background-color: #dc3545;
}

button.danger:hover {
  background-color: #c82333;
}

.success {
  color: #28a745;
  font-weight: bold;
  text-align: center;
  margin-top: 15px;
}

.error {
  color: #dc3545;
  font-weight: bold;
  text-align: center;
  margin-top: 15px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

th, td {
  border: 1px solid #ddd;
  padding: 12px;
  text-align: left;
}

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

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.stat-card {
  background-color: #f8f9fa;
  padding: 20px;
  border-radius: 8px;
  text-align: center;
  border-left: 4px solid #007bff;
}

.stat-number {
  font-size: 2em;
  font-weight: bold;
  color: #007bff;
}

.stat-label {
  color: #666;
  margin-top: 5px;
}

.login-form {
  max-width: 400px;
  margin: 0 auto;
}

.role-badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: bold;
  color: white;
}

.role-admin {
  background-color: #dc3545;
}

.role-user {
  background-color: #28a745;
}

.email-template {
  background-color: #f8f9fa;
  padding: 15px;
  border-radius: 5px;
  margin-top: 10px;
  border-left: 4px solid #007bff;
}

.simulation-target {
  background-color: #fff3cd;
  border: 1px solid #ffeaa7;
  padding: 15px;
  border-radius: 5px;
  margin: 10px 0;
}

.file-upload {
  border: 2px dashed #007bff;
  padding: 30px;
  text-align: center;
  border-radius: 10px;
  background-color: #f8f9fa;
  cursor: pointer;
  transition: background-color 0.3s;
}

.file-upload:hover {
  background-color: #e9ecef;
}

.file-upload input {
  display: none;
}


@media (max-width: 768px) {
  .nav-bar {
    padding: 10px;
  }
  
  .nav-bar button {
    padding: 8px 12px;
    margin: 0 5px;
    font-size: 14px;
  }
  
  .container {
    padding: 20px;
    margin: 10px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
  }
  
  table {
    font-size: 12px;
  }
  
  th, td {
    padding: 8px;
  }
}


.quiz-link {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background-color: #28a745;
    color: white;
    text-decoration: none;
    border-radius: 5px;
}

.quiz-link:hover {
    background-color: #218838;
}

.question {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 5px;
}

.option {
    margin: 10px 0;
}

.result-card {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 20px;
}

.btn:hover {
    background-color: #0056b3;
}

.danger {
    background-color: #dc3545;
}

.danger:hover {
    background-color: #c82333;
}

/* ===== LOGIN PAGE ===== */
.login-wrapper {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #f1f5f9;
}

.login-box {
    width: 100%;
    max-width: 380px;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
    border: 1px solid #e5e7eb;
}

.login-box h2 {
    text-align: center;
    margin-bottom: 5px;
}

.subtitle {
    text-align: center;
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 20px;
}

.login-form input {
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #ddd;
}

.login-form input:focus {
    border-color: #2563eb;
    outline: none;
}

.login-form button {
    margin-top: 10px;
    padding: 12px;
    background: #2563eb;
    color: white;
    border-radius: 6px;
    border: none;
}

.login-form button:hover {
    background: #1d4ed8;
}