:root{--bg: #f1f5f9;--panel: #ffffff;--side: #0f172a;--side-2: #1e293b;--txt: #0f172a;--muted: #64748b;--brand: #2563eb;--line: #e2e8f0;--ok: #16a34a;--warn: #d97706;--bad: #dc2626}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--txt);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:14px}.app{display:flex;min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:236px;background:var(--side);color:#cbd5e1;display:flex;flex-direction:column;z-index:20}.brand{padding:22px 20px;font-weight:700;font-size:18px;color:#fff;letter-spacing:.02em}.brand span{color:var(--brand)}.nav{display:flex;flex-direction:column;gap:2px;padding:6px 0}.nav a{display:flex;align-items:center;gap:10px;padding:11px 20px;color:#cbd5e1;text-decoration:none;font-size:14px;border-left:3px solid transparent}.nav a:hover{background:var(--side-2);color:#fff}.nav a.active{background:var(--side-2);color:#fff;border-left-color:var(--brand)}.side-foot{margin-top:auto;padding:16px 20px;border-top:1px solid #1e293b;font-size:12px}.side-foot .who{color:#fff;font-weight:600;font-size:13px;overflow:hidden;text-overflow:ellipsis}.main{flex:1;margin-left:236px;padding:24px 28px 48px;min-width:0}.topbar{display:flex;align-items:center;gap:12px;margin-bottom:20px}.topbar h1{font-size:21px;margin:0}.spacer{flex:1}.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}.card h3{margin:0 0 12px;font-size:14px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-weight:600}.main>.card+.card{margin-top:16px}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;margin-bottom:18px}.stat .label{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}.stat .value{font-size:27px;font-weight:700;margin-top:6px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}table{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden}th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);font-size:13.5px;vertical-align:top}th{background:#f8fafc;color:var(--muted);font-size:11.5px;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap}tbody tr:last-child td{border-bottom:none}tbody tr:hover{background:#f8fafc}.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:700;white-space:nowrap}.badge.sent,.badge.active{background:#dcfce7;color:#166534}.badge.failed,.badge.inactive{background:#fee2e2;color:#991b1b}.badge.pending,.badge.connecting{background:#fef3c7;color:#92400e}.badge.received,.badge.open{background:#dbeafe;color:#1e40af}.badge.qr,.badge.stopped{background:#ede9fe;color:#5b21b6}.badge.failed-state{background:#fee2e2;color:#991b1b}.badge.role{background:#e2e8f0;color:#334155}.btn{background:var(--brand);color:#fff;border:1px solid var(--brand);padding:9px 15px;border-radius:8px;font-size:14px;cursor:pointer;font-family:inherit}.btn:hover{filter:brightness(1.06)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.secondary{background:#fff;color:var(--txt);border-color:var(--line)}.btn.danger{background:var(--bad);border-color:var(--bad)}.btn.sm{padding:5px 10px;font-size:12px;border-radius:7px}.input,.textarea,.select{width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;font-family:inherit;background:#fff;color:var(--txt)}.input:focus,.textarea:focus,.select:focus{outline:2px solid #bfdbfe;border-color:var(--brand)}.textarea{resize:vertical;min-height:96px}.label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}.field{margin-bottom:14px}.alert{padding:10px 14px;border-radius:8px;font-size:13.5px;margin-bottom:14px;border:1px solid transparent}.alert.error{background:#fee2e2;color:#991b1b;border-color:#fecaca}.alert.ok{background:#dcfce7;color:#166534;border-color:#bbf7d0}.alert.info{background:#dbeafe;color:#1e40af;border-color:#bfdbfe}.muted{color:var(--muted)}.small{font-size:12px}.mono{font-family:ui-monospace,Consolas,monospace}.pager{display:flex;gap:8px;align-items:center;justify-content:flex-end;margin-top:12px;font-size:13px;color:var(--muted)}.tabs{display:flex;gap:8px;margin-bottom:16px}.tab{padding:8px 15px;border-radius:8px;background:#fff;border:1px solid var(--line);cursor:pointer;font-family:inherit;font-size:14px}.tab.active{background:var(--brand);color:#fff;border-color:var(--brand)}.modal-back{position:fixed;inset:0;background:#0f172a8c;display:flex;align-items:center;justify-content:center;z-index:50;padding:16px}.modal{background:#fff;border-radius:14px;padding:22px;width:min(520px,94vw);max-height:90vh;overflow:auto}.modal h2{margin:0 0 16px;font-size:17px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.login-wrap{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#0f172a,#1e3a8a);padding:20px}.login-card{background:#fff;padding:32px;border-radius:16px;width:min(400px,94vw)}.login-card h1{margin:0 0 4px;font-size:22px}.chart{display:flex;gap:12px;align-items:flex-end;height:170px}.chart-col{flex:1;display:flex;flex-direction:column;justify-content:flex-end;height:100%;gap:2px}.bar{border-radius:4px;min-height:3px}.bar.out{background:var(--brand)}.bar.in{background:#94a3b8}.chart-lbl{font-size:10.5px;color:var(--muted);text-align:center;margin-top:6px;white-space:nowrap;overflow:hidden}.chart-legend{display:flex;gap:14px;font-size:12px;color:var(--muted);margin-top:10px}.dot{display:inline-block;width:9px;height:9px;border-radius:3px;margin-right:5px}.qr{display:block;margin:0 auto;border:1px solid var(--line);border-radius:12px;padding:8px;background:#fff}.progress{height:8px;background:#e2e8f0;border-radius:999px;overflow:hidden}.progress>div{height:100%;background:var(--brand);transition:width .3s}.empty{text-align:center;padding:34px 12px;color:var(--muted)}@media(max-width:900px){.sidebar{position:static;width:100%;inset:auto}.app{flex-direction:column}.main{margin-left:0;padding:18px}.nav{flex-direction:row;flex-wrap:wrap}.nav a{border-left:none;border-bottom:3px solid transparent;padding:9px 14px}.nav a.active{border-left:none;border-bottom-color:var(--brand)}.side-foot{display:none}.grid2{grid-template-columns:1fr}table{display:block;overflow-x:auto}}.attach-btn{display:inline-block;cursor:pointer}.attach-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.attach-chip{display:flex;align-items:center;gap:8px;padding:6px 8px;border:1px solid var(--line);border-radius:8px;background:var(--panel);max-width:100%}.attach-chip-thumb{width:40px;height:40px;object-fit:cover;border-radius:6px;border:1px solid var(--line);display:block}.attach-chip-icon{font-size:20px;line-height:1}.attach-chip-name{max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px}.attach-chip-x{border:none;background:transparent;color:var(--muted);font-size:16px;line-height:1;cursor:pointer;padding:2px 4px;border-radius:4px}.attach-chip-x:hover{background:var(--line);color:var(--bad)}.attach-thumb-link{display:inline-block;line-height:0}.attach-thumb{width:56px;height:56px;object-fit:cover;border-radius:6px;border:1px solid var(--line);display:block}.attach-file{display:inline-block;font-size:12px;color:var(--brand);text-decoration:none;border:1px solid var(--line);border-radius:6px;padding:4px 8px;background:var(--panel);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:middle}.attach-file:hover{border-color:var(--brand)}.preview-box{margin-top:8px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);white-space:pre-wrap;min-height:64px;font-size:13px;color:var(--txt)}.member-list{max-height:320px;overflow-y:auto;border:1px solid var(--line);border-radius:8px;padding:6px}.member-item{display:flex;align-items:center;gap:8px;padding:7px 8px;border-radius:6px;cursor:pointer}.member-item:hover{background:var(--bg)}.card h4{margin:20px 0 8px;font-size:12.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}.guide-steps{margin:4px 0 14px;padding-left:20px;line-height:1.9;font-size:13.5px}.token-box{display:flex;align-items:center;gap:10px;margin-top:10px;padding:10px 12px;background:#fff;border:1px dashed var(--brand);border-radius:8px}.token-box code{flex:1;min-width:0;overflow-wrap:anywhere;font-size:13px;color:var(--txt)}.code-block{margin:0 0 14px;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#0f172a}.code-head{display:flex;align-items:center;gap:10px;padding:7px 10px;background:#1e293b;color:#cbd5e1;font-size:12px}.code-head>span{flex:1;text-transform:uppercase;letter-spacing:.05em}.code-block pre{margin:0;padding:12px 14px;overflow-x:auto;color:#e2e8f0;font-size:12.5px;line-height:1.6;font-family:ui-monospace,Consolas,monospace;white-space:pre}.card code.mono{background:var(--bg);border:1px solid var(--line);border-radius:5px;padding:1px 5px;font-size:12.5px}