:root{--bg: #0a0a0b;--bg-elevated: #111113;--bg-hover: #1a1a1d;--fg: #f4f4f5;--fg-muted: #71717a;--accent: #00d4aa;--accent-dim: #00b894;--border: #27272a;--card: #141416;--input-bg: #18181b;--shadow: 0 4px 24px rgba(0,0,0,.4);--radius: 12px;--radius-sm: 8px;--transition: .15s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;background:var(--bg);color:var(--fg);font-family:Space Grotesk,system-ui,sans-serif;line-height:1.6}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--fg-muted)}h1,h2,h3,h4{font-family:Space Grotesk,sans-serif;font-weight:600;line-height:1.2}code,pre{font-family:JetBrains Mono,monospace;font-size:.9em}.app{display:flex;height:100vh;overflow:hidden}.sidebar{width:280px;background:var(--bg-elevated);border-right:1px solid var(--border);display:flex;flex-direction:column;transition:width var(--transition);overflow-y:auto}.sidebar.collapsed{width:60px}.sidebar-header{padding:16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}.logo{width:32px;height:32px;background:linear-gradient(135deg,var(--accent),#0077ff);border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:700;color:#000;font-size:14px}.logo-text{font-weight:700;font-size:16px;color:var(--fg);white-space:nowrap;overflow:hidden}.nav-list{list-style:none;padding:12px 8px;flex:1}.nav-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);color:var(--fg-muted);text-decoration:none;font-size:14px;transition:all var(--transition);margin-bottom:4px}.nav-item:hover,.nav-item.active{background:var(--bg-hover);color:var(--fg)}.nav-item svg{width:20px;height:20px;flex-shrink:0}.nav-item-text{white-space:nowrap;overflow:hidden}.sidebar.collapsed .nav-item-text{display:none}.main{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg)}.topbar{height:56px;background:var(--bg-elevated);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:10}.topbar-left{display:flex;align-items:center;gap:16px}.menu-btn{width:40px;height:40px;border:none;background:transparent;border-radius:var(--radius-sm);color:var(--fg-muted);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition)}.menu-btn:hover{background:var(--bg-hover);color:var(--fg)}.search-box{position:relative;width:100%;max-width:480px}.search-box input{width:100%;padding:10px 16px 10px 44px;background:var(--input-bg);border:1px solid var(--border);border-radius:var(--radius);color:var(--fg);font-size:14px;font-family:inherit;transition:all var(--transition)}.search-box input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #00d4aa26}.search-box svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--fg-muted)}.topbar-right{display:flex;align-items:center;gap:12px}.icon-btn{width:40px;height:40px;border:none;background:transparent;border-radius:var(--radius-sm);color:var(--fg-muted);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition)}.icon-btn:hover{background:var(--bg-hover);color:var(--fg)}.avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#0077ff);display:flex;align-items:center;justify-content:center;color:#000;font-weight:600;font-size:14px}.chat-area{flex:1;overflow:auto;padding:24px;display:flex;flex-direction:column}.dialog-list{max-width:900px;margin:0 auto;width:100%}.dialog-list h2{font-size:20px;font-weight:600;margin-bottom:20px;color:var(--fg)}.dialog-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px 20px;margin-bottom:12px;cursor:pointer;transition:all var(--transition);display:flex;align-items:flex-start;gap:16px}.dialog-card:hover{border-color:var(--accent);box-shadow:var(--shadow);transform:translateY(-1px)}.dialog-card.active{border-color:var(--accent);background:#00d4aa0d}.dialog-avatar{width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,var(--accent),#0077ff);display:flex;align-items:center;justify-content:center;color:#000;font-weight:600;font-size:16px;flex-shrink:0}.dialog-content{flex:1;min-width:0}.dialog-title{font-weight:600;font-size:15px;color:var(--fg);margin-bottom:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.dialog-preview{font-size:13px;color:var(--fg-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.dialog-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--fg-muted);margin-top:8px}.chat-view{flex:1;display:flex;flex-direction:column;max-width:800px;width:100%;margin:0 auto}.chat-header{padding:16px 0;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:16px;margin-bottom:24px}.back-btn{background:none;border:none;color:var(--fg-muted);cursor:pointer;padding:8px;display:flex;align-items:center;gap:8px;font-size:14px}.back-btn:hover{color:var(--fg)}.chat-messages{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:16px;padding:16px 0}.message{display:flex;gap:12px;max-width:85%;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.user{align-self:flex-end;flex-direction:row-reverse}.message.assistant{align-self:flex-start}.message-avatar{width:36px;height:36px;border-radius:8px;flex-shrink:0;display:flex;align-items:center;justify-content:center;color:#000;font-weight:600;font-size:13px}.message.user .message-avatar{background:linear-gradient(135deg,#6366f1,#8b5cf6)}.message.assistant .message-avatar{background:linear-gradient(135deg,var(--accent),#0077ff)}.message-content{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:14px 18px;max-width:100%}.message.user .message-content{background:linear-gradient(135deg,#6366f126,#8b5cf61a);border-color:#6366f14d}.message-text{white-space:pre-wrap;word-wrap:break-word;font-size:14px;line-height:1.7}.message-time{font-size:11px;color:var(--fg-muted);margin-top:6px;text-align:right}.input-area{padding:16px 0 0;border-top:1px solid var(--border);background:var(--bg-elevated)}.input-wrapper{display:flex;gap:12px;max-width:800px;margin:0 auto;padding:0 16px}.input-wrapper textarea{flex:1;min-height:56px;max-height:200px;padding:14px 18px;background:var(--input-bg);border:1px solid var(--border);border-radius:var(--radius);color:var(--fg);font-family:inherit;font-size:14px;line-height:1.6;resize:none;transition:all var(--transition)}.input-wrapper textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #00d4aa26}.send-btn{width:48px;height:48px;border:none;border-radius:var(--radius);background:linear-gradient(135deg,var(--accent),#0077ff);color:#000;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition);flex-shrink:0}.send-btn:hover{transform:scale(1.02);box-shadow:0 4px 16px #00d4aa66}.send-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.auth-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--bg)}.auth-card{width:100%;max-width:420px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:40px 32px;box-shadow:var(--shadow)}.auth-title{font-size:28px;font-weight:700;text-align:center;margin-bottom:8px}.auth-subtitle{text-align:center;color:var(--fg-muted);margin-bottom:32px}.telegram-btn{width:100%;padding:14px 24px;border:none;border-radius:var(--radius);background:#08c;color:#fff;font-weight:600;font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px;transition:all var(--transition)}.telegram-btn:hover{background:#0077b5;transform:translateY(-1px)}.auth-footer{text-align:center;margin-top:24px;color:var(--fg-muted);font-size:13px}@media (max-width: 768px){.sidebar{position:fixed;left:0;top:0;bottom:0;z-index:50;transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:40}.sidebar-overlay.open{display:block}.chat-area{padding:16px}.topbar{padding:0 16px}.search-box{display:none}.input-wrapper{padding:0 12px}}