:root{--bg: #f5f7fa;--bg-alt: #ffffff;--bg-sidebar: #1e293b;--bg-sidebar-active: #334155;--bg-hover: #f1f5f9;--bg-selected: #e0f2fe;--text: #0f172a;--text-muted: #64748b;--text-inverse: #f8fafc;--text-sidebar: #cbd5e1;--border: #e2e8f0;--border-strong: #cbd5e1;--primary: #0ea5e9;--primary-hover: #0284c7;--primary-soft: #e0f2fe;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--danger-hover: #dc2626;--msg-out: #dcf8c6;--msg-in: #ffffff;--msg-bg: #ece5dd;--radius: 8px;--radius-sm: 6px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);--shadow: 0 4px 12px rgba(15, 23, 42, .08);--shadow-lg: 0 12px 32px rgba(15, 23, 42, .12);--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: "SF Mono", Menlo, Consolas, monospace}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;padding:0}body{font-family:var(--font);font-size:14px;line-height:1.5;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;font-size:inherit;cursor:pointer}input,textarea,select{font-family:inherit;font-size:inherit}.app{display:flex;height:100vh;overflow:hidden}.sidebar{width:220px;background:var(--bg-sidebar);color:var(--text-sidebar);display:flex;flex-direction:column;flex-shrink:0}.sidebar__brand{padding:18px 20px;font-weight:600;font-size:15px;color:var(--text-inverse);border-bottom:1px solid rgba(255,255,255,.08)}.sidebar__brand small{display:block;font-weight:400;font-size:11px;color:#94a3b8;margin-top:2px}.sidebar__nav{flex:1;overflow-y:auto;padding:8px}.sidebar__link{display:block;padding:10px 14px;color:var(--text-sidebar);border-radius:var(--radius-sm);margin-bottom:2px;font-size:14px}.sidebar__link:hover{background:#ffffff0f;text-decoration:none}.sidebar__link--active{background:var(--bg-sidebar-active);color:var(--text-inverse)}.sidebar__footer{padding:14px 16px;border-top:1px solid rgba(255,255,255,.08);font-size:12px}.sidebar__user{font-weight:500;color:var(--text-inverse);margin-bottom:6px}.sidebar__role{color:#94a3b8;font-size:11px;text-transform:uppercase;letter-spacing:.5px}.sidebar__logout{margin-top:10px;background:transparent;border:1px solid rgba(255,255,255,.2);color:var(--text-sidebar);padding:6px 10px;border-radius:var(--radius-sm);width:100%}.sidebar__logout:hover{background:#ffffff14}.ws-indicator{display:inline-flex;align-items:center;gap:6px;font-size:11px;color:#94a3b8;margin-top:8px}.ws-indicator__dot{width:8px;height:8px;border-radius:50%;background:#64748b}.ws-indicator__dot--open{background:var(--success)}.ws-indicator__dot--connecting{background:var(--warning)}.ws-indicator__dot--closed{background:var(--danger)}.main{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;border-radius:var(--radius-sm);border:1px solid transparent;font-weight:500;font-size:14px;transition:background .15s,border-color 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var(--border-strong);border-radius:var(--radius-sm);background:var(--bg-alt);color:var(--text);outline:none;transition:border-color .15s,box-shadow .15s;width:100%}.input:focus,.textarea:focus,.select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #0ea5e926}.textarea{resize:vertical;min-height:80px}.page{flex:1;display:flex;flex-direction:column;overflow:hidden}.page__header{padding:18px 28px;border-bottom:1px solid var(--border);background:var(--bg-alt);display:flex;align-items:center;justify-content:space-between;gap:16px}.page__title{font-size:18px;font-weight:600;margin:0}.page__body{flex:1;overflow-y:auto;padding:24px 28px}.page__body--flex{display:flex;padding:0;overflow:hidden}.login{height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a,#1e293b)}.login__card{background:var(--bg-alt);padding:36px;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:360px}.login__title{margin:0 0 6px;font-size:22px;font-weight:600}.login__sub{margin:0 0 24px;color:var(--text-muted);font-size:13px}.login__error{background:#fef2f2;color:var(--danger);padding:10px 12px;border-radius:var(--radius-sm);font-size:13px;margin-bottom:14px;border:1px solid #fecaca}.inbox{display:flex;flex:1;overflow:hidden}.chat-list{width:340px;border-right:1px solid var(--border);background:var(--bg-alt);display:flex;flex-direction:column;flex-shrink:0}.chat-list__header{padding:14px 16px;border-bottom:1px solid var(--border)}.chat-list__search{width:100%;padding:7px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);outline:none;font-size:13px}.chat-list__items{flex:1;overflow-y:auto}.chat-item{display:flex;gap:12px;padding:12px 16px;border-bottom:1px solid var(--border);cursor:pointer;position:relative}.chat-item:hover{background:var(--bg-hover)}.chat-item--active{background:var(--bg-selected)}.chat-item__avatar{width:44px;height:44px;border-radius:50%;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;font-weight:600;color:var(--primary);flex-shrink:0;font-size:16px}.chat-item__main{flex:1;min-width:0}.chat-item__row{display:flex;justify-content:space-between;align-items:baseline}.chat-item__name{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:14px}.chat-item__time{font-size:11px;color:var(--text-muted);flex-shrink:0;margin-left:8px}.chat-item__preview{font-size:13px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}.chat-item__unread{position:absolute;bottom:14px;right:16px;background:var(--primary);color:#fff;border-radius:10px;min-width:20px;padding:2px 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#0000000f}.msg--in{background:var(--msg-in);align-self:flex-start;border-top-left-radius:2px}.msg--out{background:var(--msg-out);align-self:flex-end;border-top-right-radius:2px}.msg__body{white-space:pre-wrap;word-break:break-word}.msg__meta{font-size:11px;color:var(--text-muted);margin-top:2px;text-align:right;display:flex;gap:4px;justify-content:flex-end;align-items:center}.msg__status{font-size:13px}.msg__media{max-width:280px;border-radius:6px;display:block;margin-bottom:4px}.composer{padding:12px 20px;background:var(--bg-alt);border-top:1px solid var(--border);display:flex;gap:8px;align-items:flex-end}.composer__textarea{flex:1;resize:none;min-height:40px;max-height:200px;padding:10px 12px;border-radius:20px;border:1px solid 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8px;border-radius:10px;font-size:11px;font-weight:500;text-transform:uppercase;letter-spacing:.3px}.badge--success{background:#dcfce7;color:#166534}.badge--warning{background:#fef3c7;color:#92400e}.badge--danger{background:#fee2e2;color:#991b1b}.badge--muted{background:var(--bg);color:var(--text-muted)}.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}.spinner--lg{width:36px;height:36px;border-width:3px}@keyframes spin{to{transform:rotate(360deg)}}.center{display:flex;align-items:center;justify-content:center;padding:48px;color:var(--text-muted)}.flex{display:flex}.flex-col{display:flex;flex-direction:column}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.muted{color:var(--text-muted)}.text-sm{font-size:13px}.text-xs{font-size:12px}.row{display:flex;gap:12px;align-items:center}.toasts{position:fixed;bottom:24px;right:24px;display:flex;flex-direction:column;gap:8px;z-index:9999;pointer-events:none}.toast{background:var(--text);color:var(--text-inverse);padding:10px 16px;border-radius:var(--radius);box-shadow:var(--shadow);font-size:13px;max-width:360px;pointer-events:auto;animation:toast-in .2s ease-out}.toast--success{background:var(--success)}.toast--error{background:var(--danger)}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.modal-bg{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a66;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal{background:var(--bg-alt);border-radius:var(--radius-lg);padding:24px;max-width:480px;width:100%;box-shadow:var(--shadow-lg)}.modal__title{margin:0 0 16px;font-size:16px;font-weight:600}.modal__actions{display:flex;gap:8px;justify-content:flex-end;margin-top:20px}