.users-container{padding:20px}.user-form{margin-bottom:20px;display:flex;gap:10px;align-items:center}.user-list table{width:100%;border-collapse:collapse}.user-list th,.user-list td{border:1px solid var(--border);padding:8px;text-align:left}.user-list th{background-color:var(--panel)}.modal-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--panel);padding:24px;border-radius:12px;width:500px;max-width:90%}.modal-header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border);padding-bottom:16px;margin-bottom:16px}.modal-header h3{margin:0;font-size:20px}.close-button{background:transparent;border:none;font-size:24px;cursor:pointer;color:var(--muted)}.filter-group{margin-bottom:16px}.filter-group label{display:block;margin-bottom:8px;font-weight:600}.filter-group input{width:100%;padding:12px;border-radius:8px;border:1px solid var(--border);background:#fff;color:var(--text);font-size:16px}body.dark .filter-group input{background:#444;color:var(--text)}.modal-footer{display:flex;justify-content:flex-end;gap:8px;padding-top:16px;border-top:1px solid var(--border);margin-top:16px}.modal-footer button{padding:12px 20px;border-radius:8px;border:none;font-weight:600;cursor:pointer}.apply-button{background:var(--accent);color:#fff}.cancel-button{background:var(--muted);color:#fff}.charts-container{display:flex;gap:16px;margin-bottom:16px}.chart-container{flex:1;padding:16px;border-radius:8px;background:var(--panel)}:root{--bg: #f8f9fa;--panel: #ffffff;--muted: #6c757d;--text: #212529;--accent: #007bff;--border: #dee2e6}body.dark{--bg: #1a1a1a;--panel: #2a2a2a;--muted: #8c8c8c;--text: #f8f9fa;--accent: #007bff;--border: #444444}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol}.app{display:grid;grid-template-columns:280px 1fr;height:100vh}.sidebar{background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:24px}.sidebar h2{font-size:18px;color:var(--muted);margin:0 0 24px}.sidebar .nav{display:flex;flex-direction:column;gap:8px}.sidebar button{width:100%;padding:12px 16px;border-radius:8px;border:none;background:transparent;color:var(--text);cursor:pointer;text-align:left;font-size:16px;transition:background .2s ease,color .2s ease}.sidebar button.active,.sidebar button:hover{background:var(--accent);color:#fff}.content{display:flex;flex-direction:column;height:100vh;overflow:auto}.topbar{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:24px;border-bottom:1px solid var(--border);background:var(--panel)}.topbar .title{font-size:24px;font-weight:600}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;padding:24px}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:24px;box-shadow:0 4px 6px #0000000d;transition:transform .2s ease,box-shadow .2s ease}body.dark .card{box-shadow:0 4px 6px #0003}.card:hover{transform:translateY(-5px);box-shadow:0 8px 12px #0000001a}body.dark .card:hover{box-shadow:0 8px 12px #0000004d}.card h3{margin:0 0 8px;font-size:16px;color:var(--muted)}.stat{font-size:32px;font-weight:700;color:var(--text)}.card:nth-child(1) .stat{color:var(--accent)}.card:nth-child(2) .stat{color:#28a745}.card:nth-child(3) .stat{color:#dc3545}.badge{display:inline-block;padding:8px 12px;border-radius:999px;background:#e9ecef;font-size:14px;color:var(--muted);border:none}body.dark .badge{background:#3a3a3a;color:var(--text-muted)}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:16px;text-align:left;border-bottom:1px solid var(--border)}.table th{background:#f8f9fa;color:var(--muted);font-weight:600;position:sticky;top:0;z-index:1}body.dark .table th{background:#2a2a2a}.table tbody tr:hover{background:#f1f3f5;cursor:pointer}body.dark .table tbody tr:hover{background:#3a3a3a}.chatarea{flex:1;display:flex;gap:24px;padding:24px;overflow:hidden}.chat{flex:3;display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--border);border-radius:12px}.messages{flex:1;overflow:auto;padding:24px;display:flex;flex-direction:column;gap:16px}.msg{display:flex;gap:12px}.msg.user{justify-content:flex-end}.bubble{padding:12px 16px;border-radius:16px;background:#e9ecef;max-width:80%}body.dark .bubble{background:#444}.msg.user .bubble{background:var(--accent);color:#fff}.inputbar{display:flex;gap:12px;border-top:1px solid var(--border);padding:16px}.inputbar input{flex:1;padding:12px;border-radius:8px;border:1px solid var(--border);background:#fff;color:var(--text);font-size:16px}body.dark .inputbar input{background:#444;color:var(--text)}.inputbar button{padding:12px 20px;border-radius:8px;border:none;background:var(--accent);color:#fff;font-weight:600;cursor:pointer}.panel{flex:1;display:flex;flex-direction:column;gap:24px}.uploader{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:24px}.filters{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}.filters input,.filters select{padding:12px;border-radius:8px;border:1px solid var(--border);background:#fff;color:var(--text);font-size:16px}body.dark .filters input,body.dark .filters select{background:#444;color:var(--text)}.tablewrap{overflow:auto;max-height:50vh;border:1px solid var(--border);border-radius:12px}.footer{padding:16px 24px;color:var(--muted);font-size:14px;border-top:1px solid var(--border);background:var(--panel);text-align:center}.link{color:var(--accent);text-decoration:none}.link:hover{text-decoration:underline}.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background:var(--bg)}.login-card{width:100%;max-width:450px;background:#fff;padding:3rem;border-radius:16px;box-shadow:0 8px 16px #0000001a;text-align:center}body.dark .login-card{background:var(--panel)}.login-title{font-size:2rem;font-weight:700;color:#333;margin-bottom:2rem}body.dark .login-title{color:var(--text)}.login-form input{width:100%;padding:1rem;margin-bottom:1.5rem;border:1px solid #ccc;border-radius:8px;font-size:1rem;outline:none;transition:border .2s ease-in-out}body.dark .login-form input{background:#444;border-color:#555;color:var(--text)}.login-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #007bff40}.login-form button{width:100%;padding:1rem;background:var(--accent);color:#fff;font-size:1rem;font-weight:600;border:none;border-radius:8px;cursor:pointer;transition:background .2s ease-in-out}.login-form button:hover{background:#0056b3}.login-footer{margin-top:2.5rem;font-size:1rem;color:#888}@media (max-width: 768px){.app{grid-template-columns:1fr}.sidebar{display:none}.content{height:auto}.topbar,.grid{padding:16px}.chatarea{flex-direction:column;padding:16px}}