body { font-family: Arial, sans-serif; background-color: #f5f5f5; margin: 0; padding: 0; display: flex; justify-content: center; align-items: center; min-height: 100vh; }
.login-container { background-color: white; padding: 2rem; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); width: 100%; max-width: 400px; }
.login-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-group label { font-weight: bold; }
.form-group input { padding: 0.5rem; border: 1px solid #ddd; border-radius: 4px; font-size: 1rem; }
.login-button { background-color: #4CAF50; color: white; padding: 0.75rem; border: none; border-radius: 4px; cursor: pointer; font-size: 1rem; margin-top: 1rem; }
.login-button:hover { background-color: #45a049; }
.error-message { color: #ff0000; background-color: #ffebee; padding: 0.5rem; border-radius: 4px; margin-bottom: 1rem; text-align: center; }
h1 { text-align: center; color: #333; margin-bottom: 2rem; }