* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
}

.App {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  width: 100vw;
  box-sizing: border-box;
}

.App-header {
  text-align: center;
  margin-bottom: 2rem;
}

.registration-form,
.login-form {
  background: #f8f9fa;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

.registration-form h2,
.login-form h2 {
  text-align: center;
  margin-bottom: 1.5rem;
  color: #333;
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: #555;
}

.form-group input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
  box-sizing: border-box;
}

.form-group input:focus {
  outline: none;
  border-color: #007bff;
  box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.form-group input.error {
  border-color: #dc3545;
}

.error-message {
  display: block;
  color: #dc3545;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.alert {
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  border-radius: 4px;
}

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

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

button[type="submit"] {
  width: 100%;
  padding: 0.75rem;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.2s;
}

button[type="submit"]:hover:not(:disabled) {
  background-color: #0056b3;
}

button[type="submit"]:disabled {
  background-color: #6c757d;
  cursor: not-allowed;
}

/* Auth Guard Styles */
.auth-container {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.auth-content {
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.auth-toggle {
  display: flex;
  margin-bottom: 2rem;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #ddd;
}

.auth-toggle button {
  flex: 1;
  padding: 0.75rem;
  background: #f8f9fa;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.auth-toggle button.active {
  background: #007bff;
  color: white;
}

.auth-toggle button:hover:not(.active) {
  background: #e9ecef;
}

.auth-switch {
  text-align: center;
  margin-top: 1rem;
}

.link-button {
  background: none;
  border: none;
  color: #007bff;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
  font-size: inherit;
}

.link-button:hover {
  color: #0056b3;
}

/* Dashboard Styles */
.dashboard {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #eee;
}

.dashboard-header h1 {
  margin: 0;
  color: #333;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logout-btn {
  padding: 0.5rem 1rem;
  background: #dc3545;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.logout-btn:hover {
  background: #c82333;
}

.welcome-section {
  text-align: center;
  margin-bottom: 3rem;
}

.welcome-section h2 {
  margin-bottom: 0.5rem;
  color: #333;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.feature-card {
  background: #f8f9fa;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.feature-card h3 {
  margin-bottom: 1rem;
  color: #007bff;
}

.feature-card p {
  color: #666;
  line-height: 1.6;
}

/* Loading Styles */
.loading-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
}

.loading-spinner {
  font-size: 1.2rem;
  color: #666;
}

.unauthorized-container {
  text-align: center;
  padding: 3rem;
  background: #f8f9fa;
  border-radius: 8px;
  margin: 2rem 0;
}

.unauthorized-container h2 {
  color: #dc3545;
  margin-bottom: 1rem;
}

.unauthorized-container p {
  color: #666;
}