*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f5f6f8;color:#1a1a1a}a{color:inherit}.app-shell{min-height:100vh;display:flex;flex-direction:column}.top-nav{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1.5rem;background:#1a1a2e;color:#fff}.top-nav a{color:#fff;text-decoration:none;margin-right:1rem;opacity:.85}.top-nav a:hover{opacity:1}.top-nav .spacer{flex:1}main{flex:1;padding:1.5rem;max-width:1100px;width:100%;margin:0 auto}.card{background:#fff;border-radius:8px;padding:1.25rem;box-shadow:0 1px 3px #0000001a;margin-bottom:1rem}button{cursor:pointer;border:none;border-radius:6px;padding:.45rem .9rem;background:#4361ee;color:#fff;font-size:.9rem}button.secondary{background:#e9ecef;color:#333}button.danger{background:#e63946}button:disabled{opacity:.5;cursor:not-allowed}input[type=text],input[type=email],input[type=password],select{padding:.4rem .6rem;border:1px solid #ccc;border-radius:6px;font-size:.9rem}table{border-collapse:collapse;width:100%;font-size:.85rem}th,td{border:1px solid #e0e0e0;padding:.4rem .6rem;text-align:center}th{background:#f0f1f5}td.row-label{text-align:left;font-weight:500;background:#fafafa}.score-cell{font-weight:600}.score-cell.outlier{outline:3px solid #ff9f1c;outline-offset:-3px}.group-row-item{display:flex;align-items:center;justify-content:space-between;padding:.5rem 0;border-bottom:1px solid #eee}.group-row-item:last-child{border-bottom:none}.form-row{display:flex;gap:.5rem;align-items:center;margin-bottom:.75rem}.error-text{color:#e63946;font-size:.85rem}.muted{color:#666;font-size:.85rem}