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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f5f5f5;
}

/* Navigation Bar */
.navbar {
  background-color: #2c3e50;
  padding: 1rem 0;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-logo {
  color: #ecf0f1;
  font-size: 1.5rem;
  font-weight: bold;
  text-decoration: none;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  color: #ecf0f1;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: background-color 0.3s ease;
}

.nav-links a:hover {
  background-color: #34495e;
}

.nav-links a.active {
  background-color: #3498db;
}

/* Main Content */
.main-content {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 2rem;
}

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

.page-title {
  color: #2c3e50;
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.page-subtitle {
  color: #7f8c8d;
  font-size: 1.1rem;
}

/* Error Styles */
.error-message {
  background-color: #e74c3c;
  color: white;
  padding: 1rem 2rem;
  border-radius: 6px;
  margin: 2rem auto;
  max-width: 600px;
  text-align: center;
}

.error-message h2 {
  margin-bottom: 0.5rem;
}

/* Success Styles */
.success-message {
  background-color: #27ae60;
  color: white;
  padding: 1rem 2rem;
  border-radius: 6px;
  margin: 2rem auto;
  max-width: 600px;
  text-align: center;
}

.user-info {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  margin-top: 2rem;
}

.info-item {
  margin-bottom: 1rem;
  padding: 0.5rem;
  background-color: #ecf0f1;
  border-radius: 4px;
}

.info-label {
  font-weight: bold;
  color: #2c3e50;
}

/* Login Form Styles */
.login-container {
  max-width: 500px;
  margin: 0 auto;
}

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

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
  color: #2c3e50;
}

.form-input {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid #bdc3c7;
  border-radius: 4px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: #3498db;
}

.form-input:invalid {
  border-color: #e74c3c;
}

.login-button {
  width: 100%;
  padding: 1rem;
  background-color: #3498db;
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.login-button:hover {
  background-color: #2980b9;
}

.login-button:active {
  transform: translateY(1px);
}

/* Login Info Box */
.login-info {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  border-left: 4px solid #3498db;
}

.login-info h3 {
  color: #2c3e50;
  margin-bottom: 1rem;
}

.login-info ul {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

.login-info li {
  margin-bottom: 0.5rem;
}

.login-info code {
  background-color: #ecf0f1;
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
  font-family: 'Courier New', monospace;
}

/* Dashboard Styles */
.user-dashboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

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

.dashboard-card h3 {
  color: #2c3e50;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #ecf0f1;
}

/* Dashboard Actions */
.dashboard-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.action-button {
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  cursor: pointer;
  display: inline-block;
}

.action-button.primary {
  background-color: #3498db;
  color: white;
}

.action-button.primary:hover {
  background-color: #2980b9;
}

.action-button.secondary {
  background-color: #95a5a6;
  color: white;
}

.action-button.secondary:hover {
  background-color: #7f8c8d;
}

/* Back Link */
.back-link {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  background-color: #95a5a6;
  color: white;
  text-decoration: none;
  border-radius: 4px;
  transition: background-color 0.3s ease;
}

.back-link:hover {
  background-color: #7f8c8d;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    gap: 1rem;
  }
  
  .nav-links {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
  
  .main-content {
    padding: 0 1rem;
  }
  
  .page-header {
    padding: 1.5rem;
  }
  
  .page-title {
    font-size: 2rem;
  }
  
  .login-container {
    max-width: 100%;
  }
  
  .dashboard-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .action-button {
    text-align: center;
  }
}

/* Textarea Styles for Section4 */
.form-input[type="textarea"],
textarea.form-input {
  width: 100%;
  min-height: 150px;
  resize: vertical;
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.5;
  border: 2px solid #ecf0f1;
  border-radius: 6px;
  padding: 1rem;
  background-color: #fff;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  box-sizing: border-box;
}

textarea.form-input:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

textarea.form-input::placeholder {
  color: #95a5a6;
  font-style: italic;
}