*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f5f5}#root{min-height:100vh}.app-container{min-height:100vh;display:flex;flex-direction:column}.navbar{background-color:#2c3e50;color:#fff;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 4px #0000001a}.navbar-brand{font-size:1.5rem;font-weight:700;text-decoration:none;color:#fff}.navbar-menu{display:flex;gap:1.5rem;align-items:center}.navbar-link{color:#fff;text-decoration:none;padding:.5rem 1rem;border-radius:4px;transition:background-color .2s}.navbar-link:hover{background-color:#ffffff1a}.navbar-link.active{background-color:#fff3}.main-content{flex:1;padding:2rem;max-width:1400px;margin:0 auto;width:100%}.card{background:#fff;border-radius:8px;padding:2rem;margin-bottom:2rem;box-shadow:0 2px 8px #0000001a}.card-title{font-size:1.5rem;margin-bottom:1rem;color:#2c3e50}.card-subtitle{font-size:1.1rem;margin-bottom:1rem;color:#34495e}.form-group{margin-bottom:1.5rem}.form-label{display:block;margin-bottom:.5rem;font-weight:500;color:#2c3e50}.form-input{width:100%;padding:.75rem;border:1px solid #ddd;border-radius:4px;font-size:1rem}.form-input:focus{outline:none;border-color:#3498db}.form-file{width:100%;padding:.5rem;border:2px dashed #ddd;border-radius:4px;cursor:pointer}.btn{padding:.75rem 1.5rem;border:none;border-radius:4px;font-size:1rem;cursor:pointer;transition:all .2s;text-decoration:none;display:inline-block;text-align:center}.btn-primary{background-color:#3498db;color:#fff}.btn-primary:hover{background-color:#2980b9}.btn-primary:disabled{background-color:#bdc3c7;cursor:not-allowed}.btn-danger{background-color:#e74c3c;color:#fff}.btn-danger:hover{background-color:#c0392b}.btn-secondary{background-color:#95a5a6;color:#fff}.btn-secondary:hover{background-color:#7f8c8d}.btn-success{background-color:#27ae60;color:#fff}.btn-success:hover{background-color:#229954}.alert{padding:1rem;border-radius:4px;margin-bottom:1rem}.alert-error{background-color:#fadbd8;color:#c0392b;border:1px solid #e74c3c}.alert-success{background-color:#d4edda;color:#155724;border:1px solid #27ae60}.alert-info{background-color:#d1ecf1;color:#0c5460;border:1px solid #3498db}.table{width:100%;border-collapse:collapse;margin-top:1rem}.table th,.table td{padding:.75rem;text-align:left;border-bottom:1px solid #ddd}.table th{background-color:#f8f9fa;font-weight:600;color:#2c3e50}.table tr:hover{background-color:#f8f9fa}.metrics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin:1.5rem 0}.metric-card{background:#f8f9fa;padding:1.5rem;border-radius:8px;text-align:center}.metric-label{font-size:.9rem;color:#7f8c8d;margin-bottom:.5rem}.metric-value{font-size:2rem;font-weight:700;color:#2c3e50}.metric-value.good{color:#27ae60}.metric-value.medium{color:#f39c12}.metric-value.poor{color:#e74c3c}.loading{text-align:center;padding:2rem;color:#7f8c8d}.tabs{display:flex;gap:.5rem;border-bottom:2px solid #ddd;margin-bottom:1.5rem}.tab{padding:.75rem 1.5rem;border:none;background:none;cursor:pointer;font-size:1rem;color:#7f8c8d;border-bottom:2px solid transparent;margin-bottom:-2px}.tab.active{color:#3498db;border-bottom-color:#3498db}.tab:hover{color:#2c3e50}.text-center{text-align:center}.text-muted{color:#7f8c8d}.mb-1{margin-bottom:1rem}.mb-2{margin-bottom:2rem}.mt-1{margin-top:1rem}.mt-2{margin-top:2rem}.flex{display:flex}.flex-between{display:flex;justify-content:space-between;align-items:center}.gap-1{gap:1rem}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2)}.login-card{background:#fff;padding:2rem;border-radius:8px;box-shadow:0 10px 40px #0003;width:100%;max-width:400px}.login-title{text-align:center;margin-bottom:2rem;color:#2c3e50;font-size:2rem}