:root{color-scheme:light;--bg: #f5f6f8;--panel: #ffffff;--border: #e0e2e7;--text: #1c1f26;--text-muted: #6b7280;--primary: #2563eb;--primary-hover: #1d4ed8;--danger: #dc2626;--danger-hover: #b91c1c;--success-bg: #ecfdf5;--success-border: #a7f3d0;--radius: 8px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button{cursor:pointer;border:1px solid var(--border);background:var(--panel);color:var(--text);padding:.45rem .9rem;border-radius:var(--radius);font-size:.9rem}button:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}button:disabled{opacity:.5;cursor:not-allowed}button[type=submit],.filters-panel>button{background:var(--primary);color:#fff;border-color:var(--primary)}button[type=submit]:hover:not(:disabled),.filters-panel>button:hover:not(:disabled){background:var(--primary-hover);color:#fff}button.danger{background:var(--danger);color:#fff;border-color:var(--danger)}button.danger:hover:not(:disabled){background:var(--danger-hover);color:#fff}input[type=text],input[type=password],input[type=number],input{padding:.45rem .6rem;border:1px solid var(--border);border-radius:var(--radius);font-size:.9rem;width:100%}label{display:flex;flex-direction:column;gap:.25rem;font-size:.85rem;color:var(--text-muted);margin-bottom:.75rem}.error{background:#fef2f2;border:1px solid #fecaca;color:#991b1b;padding:.5rem .75rem;border-radius:var(--radius);margin:.5rem 0;font-size:.85rem}.center-msg{text-align:center;color:var(--text-muted);padding:2rem}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-form{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:2rem;width:320px}.login-form h2{margin-top:0}.login-form button{width:100%}.app-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;gap:1.5rem;padding:.75rem 1.5rem;background:var(--panel);border-bottom:1px solid var(--border)}.brand{font-weight:600}.topbar nav{display:flex;gap:1rem;flex:1}.topbar nav a{color:var(--text-muted);text-decoration:none;font-size:.9rem;padding:.3rem 0;border-bottom:2px solid transparent}.topbar nav a.active{color:var(--primary);border-bottom-color:var(--primary)}.user-menu{display:flex;align-items:center;gap:.6rem;font-size:.85rem;color:var(--text-muted)}.content{flex:1;padding:1.5rem}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:var(--panel);border-radius:var(--radius);padding:1.5rem;width:320px}.modal-actions{display:flex;justify-content:flex-end;gap:.5rem;margin-top:.5rem}.data-browser{display:grid;grid-template-columns:260px 1fr;gap:1.5rem;align-items:start}.filters-panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;position:sticky;top:1rem;max-height:calc(100vh - 2rem);overflow-y:auto}.filters-panel>button{width:100%;margin-top:.5rem}fieldset{border:none;border-top:1px solid var(--border);padding:.5rem 0;margin:0 0 .5rem}legend{font-size:.8rem;font-weight:600;color:var(--text-muted);padding:0 .2rem}.checkbox-list{display:flex;flex-direction:column;gap:.2rem}.checkbox-list.scrollable{max-height:140px;overflow-y:auto}.checkbox-item{flex-direction:row;align-items:center;gap:.4rem;font-size:.82rem;color:var(--text);margin-bottom:0}.checkbox-item input{width:auto}.range-inputs{display:flex;gap:.5rem}.results-panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:1rem}.results-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:.75rem}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:.85rem}th,td{text-align:left;padding:.5rem .6rem;border-bottom:1px solid var(--border);white-space:nowrap}th{color:var(--text-muted);font-weight:600}.pagination{display:flex;align-items:center;justify-content:center;gap:1rem;margin-top:1rem;font-size:.85rem}.upload-form{display:flex;gap:.75rem;align-items:center}.result-box{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;margin-top:1rem;max-width:480px}.result-box.success{background:var(--success-bg);border-color:var(--success-border)}.hint{color:var(--text-muted);font-size:.85rem}.new-user-form{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;max-width:420px;margin-bottom:1.5rem}.users-table{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);font-size:.85rem}.users-table th,.users-table td{padding:.6rem .8rem;border-bottom:1px solid var(--border);vertical-align:top}.users-table .checkbox-list{flex-direction:row;flex-wrap:wrap;gap:.6rem}.row-actions{display:flex;flex-direction:column;gap:.4rem;white-space:nowrap}