*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:#f5f5f5}.container{max-width:800px;margin:0 auto;padding:2rem}.login-form{background:#fff;padding:2rem;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,.1);max-width:400px;margin:100px auto}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500}.form-group input{width:100%;padding:.75rem;border:1px solid #ddd;border-radius:4px;font-size:1rem}.btn{padding:.75rem 1.5rem;border:none;border-radius:4px;font-size:1rem;cursor:pointer;transition:background-color .2s}.btn-primary{background-color:#007bff;color:#fff}.btn-primary:hover{background-color:#0056b3}.btn-success{background-color:#28a745;color:#fff}.btn-success:hover{background-color:#1e7e34}.btn:disabled{background-color:#6c757d;cursor:not-allowed}.alert{padding:1rem;border-radius:4px;margin:1rem 0}.alert-success{background-color:#d4edda;color:#155724;border:1px solid #c3e6cb}.alert-error{background-color:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.alert-info{background-color:#d1ecf1;color:#0c5460;border:1px solid #bee5eb}.header{background:#fff;padding:1rem 2rem;box-shadow:0 2px 4px rgba(0,0,0,.1);margin-bottom:2rem}.header h1{color:#333;margin:0}.logout-btn{background:#dc3545;color:#fff;float:right;margin-top:-.5rem}.logout-btn:hover{background:#c82333}.training-section{background:#fff;padding:2rem;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,.1);margin-bottom:2rem}.status-display{background:#f8f9fa;padding:1rem;border-radius:4px;border-left:4px solid #007bff;margin:1rem 0}.loading{display:inline-block;width:20px;height:20px;border:3px solid #f3f3f3;border-top-color:#3498db;border-radius:50%;animation:spin 1s linear infinite;margin-right:.5rem}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}