*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:20px}.card{background:#fff;border-radius:8px;box-shadow:0 2px 10px #0000001a;padding:30px;margin-bottom:20px}.btn{padding:10px 20px;border:none;border-radius:5px;cursor:pointer;font-size:16px;transition:all .3s ease;font-weight:500}.btn-primary{background-color:#667eea;color:#fff}.btn-primary:hover:not(:disabled){background-color:#5568d3}.btn-secondary{background-color:#6c757d;color:#fff;margin-left:10px}.btn-secondary:hover:not(:disabled){background-color:#5a6268}.btn-success{background-color:#28a745;color:#fff}.btn-success:hover:not(:disabled){background-color:#218838}.btn-danger{background-color:#dc3545;color:#fff}.btn-danger:hover:not(:disabled){background-color:#c82333}.btn:disabled{opacity:.5;cursor:not-allowed}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:5px;font-weight:600;color:#333}.form-group input,.form-group textarea,.form-group select{width:100%;padding:10px;border:1px solid #ddd;border-radius:5px;font-size:14px;font-family:inherit}.form-group textarea{resize:vertical;min-height:100px}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.alert{padding:15px;border-radius:5px;margin-bottom:20px}.alert-success{background-color:#d4edda;color:#155724;border:1px solid #c3e6cb}.alert-error{background-color:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.alert-warning{background-color:#fff3cd;color:#856404;border:1px solid #ffeaa7}.alert-info{background-color:#d1ecf1;color:#0c5460;border:1px solid #bee5eb}.loading{text-align:center;padding:40px;color:#667eea}.spinner{border:4px solid #f3f3f3;border-top:4px solid #667eea;border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin:0 auto 15px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.tabs{display:flex;gap:10px;margin-bottom:20px;border-bottom:2px solid #ddd}.tab{padding:10px 20px;cursor:pointer;background:none;border:none;border-bottom:3px solid transparent;color:#666;font-weight:500;transition:all .3s ease}.tab:hover{color:#667eea}.tab.active{color:#667eea;border-bottom-color:#667eea}.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}.badge{display:inline-block;padding:5px 10px;border-radius:20px;font-size:12px;font-weight:600;margin:5px}.badge-success{background-color:#d4edda;color:#155724}.badge-info{background-color:#d1ecf1;color:#0c5460}.badge-warning{background-color:#fff3cd;color:#856404}h1,h2,h3{color:#333;margin-bottom:15px}ul{list-style:none;padding:0}li{padding:8px 0;border-bottom:1px solid #f0f0f0}li:last-child{border-bottom:none}