*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:15px;-webkit-text-size-adjust:100%}html,body,#root{height:100%;font-family:Inter,sans-serif;background:#fff;color:#0d0d0d;line-height:1.6;overflow:hidden}.app{display:flex;height:100dvh;overflow:hidden;position:relative}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:40;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.sidebar-overlay.show{display:block}.sidebar{width:270px;min-width:270px;background:#f9f9f9;border-right:1px solid #e5e5e5;display:flex;flex-direction:column;transition:transform .25s ease;z-index:50;height:100dvh}.sidebar.collapsed{width:0;min-width:0;overflow:hidden}.sidebar-top{padding:12px 10px 6px}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:4px 6px;margin-bottom:4px}.logo-mark{display:flex;align-items:center;gap:8px;text-decoration:none}.logo-text{font-size:15px;font-weight:600;color:#0d0d0d;letter-spacing:-.3px}.icon-btn{width:36px;height:36px;border:none;background:transparent;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#555;transition:background .15s;-webkit-tap-highlight-color:transparent}.icon-btn:hover,.icon-btn:active{background:#ebebeb}.new-chat-btn{display:flex;align-items:center;gap:10px;width:100%;padding:9px 10px;border:none;background:transparent;border-radius:8px;cursor:pointer;font-size:14px;color:#0d0d0d;font-family:Inter,sans-serif;font-weight:500;transition:background .15s;text-align:left;-webkit-tap-highlight-color:transparent}.new-chat-btn:hover,.new-chat-btn:active{background:#ebebeb}.sidebar-search{padding:4px 10px 8px}.search-box{display:flex;align-items:center;gap:8px;background:#ebebeb;border-radius:8px;padding:7px 10px}.search-box input{border:none;background:transparent;font-size:13px;color:#0d0d0d;font-family:Inter,sans-serif;width:100%;outline:none}.search-box input::placeholder{color:#aaa}.sidebar-history{flex:1;overflow-y:auto;padding:0 10px;overscroll-behavior:contain}.sidebar-history::-webkit-scrollbar{width:3px}.sidebar-history::-webkit-scrollbar-thumb{background:#ddd;border-radius:2px}.history-section{margin-bottom:12px}.history-label{font-size:11px;font-weight:600;color:#888;text-transform:uppercase;letter-spacing:.6px;padding:8px 6px 4px}.history-item{display:flex;align-items:center;justify-content:space-between;padding:9px 8px;border-radius:8px;cursor:pointer;transition:background .15s;min-height:44px;-webkit-tap-highlight-color:transparent}.history-item:hover,.history-item:active,.history-item.active{background:#ebebeb}.history-item span{font-size:13.5px;color:#0d0d0d;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}.history-item .item-menu{width:28px;height:28px;min-width:28px;border:none;background:transparent;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#888;flex-shrink:0;-webkit-tap-highlight-color:transparent}.history-item:hover .item-menu,.history-item.active .item-menu{display:flex}.sidebar-bottom{padding:10px;border-top:1px solid #e5e5e5}.profile-card{display:flex;align-items:center;gap:10px;padding:8px;border-radius:10px;cursor:pointer;transition:background .15s;min-height:52px;-webkit-tap-highlight-color:transparent}.profile-card:hover,.profile-card:active{background:#ebebeb}.avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,#3a7d44,#c9a84c);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;color:#fff;flex-shrink:0}.profile-info{flex:1;min-width:0}.profile-name{font-size:13.5px;font-weight:600;color:#0d0d0d;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.profile-sub{font-size:11.5px;color:#888}.main{flex:1;display:flex;flex-direction:column;overflow:hidden;background:#fff;min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;padding:0 12px;border-bottom:1px solid #e5e5e5;height:52px;flex-shrink:0;gap:8px}.topbar-left{display:flex;align-items:center;gap:6px;min-width:0}.topbar-right{display:flex;align-items:center;gap:4px;flex-shrink:0}.model-selector{display:flex;align-items:center;gap:5px;padding:6px 8px;border:1px solid #e5e5e5;border-radius:8px;cursor:pointer;background:#fff;font-size:12.5px;font-weight:500;color:#0d0d0d;font-family:Inter,sans-serif;transition:background .15s;position:relative;white-space:nowrap;-webkit-tap-highlight-color:transparent}.model-selector:hover{background:#f5f5f5}.model-dot{width:7px;height:7px;border-radius:50%;background:#3a7d44}.model-dropdown{position:absolute;top:calc(100% + 6px);left:0;background:#fff;border:1px solid #e5e5e5;border-radius:10px;box-shadow:0 8px 30px #0000001a;z-index:100;min-width:210px;padding:6px}.model-option{padding:10px 12px;border-radius:7px;cursor:pointer;font-size:13px;color:#0d0d0d;transition:background .15s;display:flex;align-items:center;gap:8px;min-height:44px}.model-option:hover,.model-option.selected{background:#f5f5f5}.model-name{font-weight:500}.model-desc{font-size:11px;color:#888;margin-top:1px}.toggle-pill{display:flex;align-items:center;gap:5px;padding:5px 8px;border:1px solid #e5e5e5;border-radius:8px;cursor:pointer;font-size:12px;color:#555;background:#fff;transition:all .15s;-webkit-user-select:none;user-select:none;font-family:Inter,sans-serif;white-space:nowrap;-webkit-tap-highlight-color:transparent;min-height:34px}.toggle-pill:hover{background:#f5f5f5}.toggle-pill.active{background:#0d0d0d;color:#fff;border-color:#0d0d0d}.toggle-switch{width:26px;height:15px;background:#ddd;border-radius:8px;position:relative;transition:background .2s;flex-shrink:0}.toggle-pill.active .toggle-switch{background:#4ade80}.toggle-switch:after{content:"";position:absolute;top:2px;left:2px;width:11px;height:11px;border-radius:50%;background:#fff;transition:transform .2s}.toggle-pill.active .toggle-switch:after{transform:translate(11px)}.chat-area{flex:1;overflow-y:auto;padding:16px 0;overscroll-behavior:contain}.chat-area::-webkit-scrollbar{width:4px}.chat-area::-webkit-scrollbar-thumb{background:#e0e0e0;border-radius:2px}.messages-wrap{max-width:720px;margin:0 auto;padding:0 16px}.message-row{padding:2px 0;display:flex;flex-direction:column;margin-bottom:6px}.message-row.user{align-items:flex-end}.message-row.assistant{align-items:flex-start}.msg-bubble{padding:10px 14px;border-radius:16px;font-size:14px;line-height:1.65;max-width:88%}.message-row.user .msg-bubble{background:#f0f0f0;color:#0d0d0d;border-bottom-right-radius:4px}.message-row.assistant .msg-bubble{background:#fff;color:#0d0d0d;border-bottom-left-radius:4px;border:1px solid #e8e8e8;max-width:100%}.msg-meta{display:flex;align-items:center;gap:6px;margin-top:3px;padding:0 2px}.msg-time{font-size:11px;color:#bbb}.msg-actions{display:flex;gap:2px}.msg-action-btn{width:28px;height:28px;border:none;background:transparent;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#bbb;transition:all .15s;-webkit-tap-highlight-color:transparent}.msg-action-btn:hover,.msg-action-btn:active{background:#f0f0f0;color:#555}.assistant-header{display:flex;align-items:center;gap:8px;margin-bottom:5px}.assistant-avatar{width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,#3a7d44,#c9a84c);display:flex;align-items:center;justify-content:center;flex-shrink:0}.assistant-name{font-size:12.5px;font-weight:600;color:#0d0d0d}.response-time{font-size:11px;color:#aaa;font-weight:400;margin-left:2px}.status-event{display:flex;align-items:center;gap:8px;padding:8px 12px;font-size:12.5px;color:#888}.status-spinner{width:13px;height:13px;border:2px solid #e0e0e0;border-top-color:#555;border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0}.typing-dot{width:7px;height:7px;border-radius:50%;background:#bbb;animation:typing-bounce .8s ease-in-out infinite;display:inline-block;margin:0 2px}.typing-dot:nth-child(2){animation-delay:.15s}.typing-dot:nth-child(3){animation-delay:.3s}@keyframes typing-bounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-5px)}}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px 20px;gap:24px;overflow-y:auto}.empty-logo{display:flex;flex-direction:column;align-items:center;gap:10px}.empty-logo-text{font-size:22px;font-weight:600;color:#0d0d0d;letter-spacing:-.5px}.empty-sub{font-size:14px;color:#888;text-align:center;max-width:320px}.suggestions{display:grid;grid-template-columns:1fr 1fr;gap:8px;max-width:520px;width:100%}.suggestion-card{padding:12px 14px;border:1px solid #e5e5e5;border-radius:12px;cursor:pointer;transition:all .15s;background:#fff;text-align:left;-webkit-tap-highlight-color:transparent;min-height:60px}.suggestion-card:hover,.suggestion-card:active{background:#f9f9f9;border-color:#ccc}.s-title{font-size:13px;font-weight:500;color:#0d0d0d;margin-bottom:2px}.s-sub{font-size:11.5px;color:#888}.input-area{padding:10px 16px 16px;flex-shrink:0;max-width:760px;margin:0 auto;width:100%}.input-box{background:#fff;border:1.5px solid #e0e0e0;border-radius:16px;transition:border-color .15s;overflow:hidden}.input-box:focus-within{border-color:#aaa}.img-gen-panel{background:#f9f9f9;border-top:1px solid #e5e5e5;padding:10px 12px;display:none;align-items:center;gap:8px}.img-gen-panel.show{display:flex}.img-gen-input{flex:1;border:1px solid #e0e0e0;border-radius:8px;padding:8px 12px;font-size:13px;font-family:Inter,sans-serif;outline:none;background:#fff}.img-gen-input:focus{border-color:#aaa}.img-gen-btn{padding:7px 12px;background:#0d0d0d;color:#fff;border:none;border-radius:8px;font-size:13px;font-family:Inter,sans-serif;cursor:pointer;font-weight:500;white-space:nowrap;-webkit-tap-highlight-color:transparent}.input-top{display:flex;align-items:flex-end;gap:8px;padding:10px 12px 6px}.input-field{flex:1;border:none;outline:none;font-size:15px;font-family:Inter,sans-serif;color:#0d0d0d;resize:none;background:transparent;line-height:1.55;max-height:140px;overflow-y:auto}.input-field::placeholder{color:#aaa}.send-btn{width:36px;height:36px;border-radius:10px;border:none;background:#0d0d0d;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#fff;transition:all .15s;flex-shrink:0;-webkit-tap-highlight-color:transparent}.send-btn:hover:not(:disabled){background:#333}.send-btn:disabled{background:#e0e0e0;cursor:not-allowed}.input-bottom{display:flex;align-items:center;gap:6px;padding:4px 12px 10px;flex-wrap:nowrap;overflow-x:auto}.input-bottom::-webkit-scrollbar{display:none}.attach-btn{display:flex;align-items:center;gap:4px;padding:5px 9px;border:1px solid #e0e0e0;border-radius:8px;cursor:pointer;background:transparent;font-size:12px;color:#555;font-family:Inter,sans-serif;transition:all .15s;white-space:nowrap;flex-shrink:0;-webkit-tap-highlight-color:transparent;min-height:30px}.attach-btn:hover,.attach-btn:active{background:#f5f5f5}.input-toggles{display:flex;align-items:center;gap:5px;margin-left:auto;flex-shrink:0}.mini-toggle{display:flex;align-items:center;gap:4px;padding:5px 8px;border:1px solid #e0e0e0;border-radius:8px;cursor:pointer;font-size:12px;color:#555;background:#fff;font-family:Inter,sans-serif;transition:all .15s;-webkit-user-select:none;user-select:none;white-space:nowrap;-webkit-tap-highlight-color:transparent;min-height:30px;flex-shrink:0}.mini-toggle:hover,.mini-toggle:active{background:#f5f5f5}.mini-toggle.on{background:#0d0d0d;color:#fff;border-color:#0d0d0d}.input-hint{text-align:center;font-size:11px;color:#ccc;padding:6px 0 0}.file-chips-row{padding:6px 12px 0;display:flex;gap:6px;flex-wrap:wrap}.file-chip{display:flex;align-items:center;gap:5px;background:#f0f0f0;border-radius:8px;padding:5px 9px;font-size:12px;color:#555;max-width:180px}.file-chip span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-chip-remove{width:16px;height:16px;background:transparent;border:none;cursor:pointer;color:#aaa;display:flex;align-items:center;justify-content:center;border-radius:4px;flex-shrink:0;font-size:12px}.msg-bubble code{background:#f0f0f0;padding:1px 5px;border-radius:4px;font-size:12.5px;font-family:monospace}.msg-bubble pre{background:#f4f4f4;border:1px solid #e8e8e8;border-radius:8px;padding:10px 12px;overflow-x:auto;font-size:12.5px;line-height:1.5;margin:6px 0}.msg-bubble pre code{background:transparent;padding:0}.msg-bubble strong{font-weight:600}.msg-bubble ul,.msg-bubble ol{padding-left:18px;margin:4px 0}.msg-bubble li{margin-bottom:2px}.msg-bubble h1,.msg-bubble h2,.msg-bubble h3{margin:8px 0 4px}.auth-page{min-height:100dvh;display:flex;align-items:center;justify-content:center;background:#f9f9f9;padding:20px}.auth-card{background:#fff;border:1px solid #e5e5e5;border-radius:20px;padding:32px 28px;width:100%;max-width:380px;box-shadow:0 4px 24px #0000000f}.auth-logo{display:flex;align-items:center;gap:10px;margin-bottom:24px}.auth-logo-text{font-size:17px;font-weight:600;color:#0d0d0d;letter-spacing:-.3px}.auth-title{font-size:20px;font-weight:600;color:#0d0d0d;letter-spacing:-.4px;margin-bottom:5px}.auth-sub{font-size:13.5px;color:#888;margin-bottom:24px}.auth-form{display:flex;flex-direction:column;gap:14px}.auth-field{display:flex;flex-direction:column;gap:5px}.auth-field label{font-size:13px;font-weight:500;color:#444}.auth-field input{padding:12px 14px;border:1.5px solid #e0e0e0;border-radius:10px;font-size:15px;font-family:Inter,sans-serif;color:#0d0d0d;outline:none;transition:border-color .15s;background:#fff}.auth-field input:focus{border-color:#3a7d44}.auth-field input::placeholder{color:#bbb}.auth-error{font-size:13px;color:#e53e3e;background:#fff5f5;border:1px solid #fed7d7;border-radius:8px;padding:10px 12px}.auth-btn{padding:13px;background:#0d0d0d;color:#fff;border:none;border-radius:10px;font-size:15px;font-weight:500;font-family:Inter,sans-serif;cursor:pointer;transition:background .15s;display:flex;align-items:center;justify-content:center;gap:8px;margin-top:4px}.auth-btn:hover:not(:disabled){background:#333}.auth-btn:disabled{opacity:.6;cursor:not-allowed}.auth-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}.auth-switch{text-align:center;font-size:13px;color:#888;margin-top:18px}.auth-switch button{background:none;border:none;color:#3a7d44;font-weight:500;cursor:pointer;font-size:13px;font-family:Inter,sans-serif;padding:0}.item-dropdown{position:absolute;right:0;top:calc(100% + 4px);background:#fff;border:1px solid #e5e5e5;border-radius:10px;box-shadow:0 8px 24px #0000001a;z-index:200;min-width:140px;padding:4px;white-space:nowrap}.item-dropdown-btn{display:flex;align-items:center;gap:8px;width:100%;padding:10px 12px;border:none;background:transparent;border-radius:7px;cursor:pointer;font-size:13px;font-family:Inter,sans-serif;color:#0d0d0d;transition:background .15s;min-height:40px}.item-dropdown-btn:hover{background:#f5f5f5}.item-dropdown-btn.danger{color:#e53e3e}.item-dropdown-btn.danger:hover{background:#fff5f5}@media (max-width: 768px){.sidebar{position:fixed;left:0;top:0;bottom:0;transform:translate(-100%);transition:transform .25s ease;width:280px;min-width:280px;box-shadow:4px 0 24px #0000001f}.sidebar.mobile-open{transform:translate(0)}.sidebar.collapsed{width:280px;min-width:280px;overflow:visible}.main{width:100%}.topbar{padding:0 8px;height:50px;gap:4px}.toggle-pill span:not(.toggle-switch){display:none}.toggle-pill{padding:6px;border-radius:8px}.toggle-pill .toggle-switch{margin:0}.messages-wrap{padding:0 12px}.msg-bubble{max-width:92%;font-size:14px}.empty-state{padding:40px 16px 24px;gap:20px;justify-content:flex-start}.empty-logo-text{font-size:20px}.suggestions{grid-template-columns:1fr;max-width:100%}.suggestion-card{min-height:52px}.input-area{padding:8px 12px 12px}.input-area{padding-bottom:max(12px,env(safe-area-inset-bottom))}.input-field{font-size:16px}.input-bottom{gap:4px;padding:4px 10px 8px}.attach-btn span{display:none}.attach-btn{padding:5px 8px}.msg-action-btn{width:32px;height:32px}.msg-actions{opacity:1}.auth-card{padding:28px 20px;border-radius:16px}.model-desc{display:none}.model-dropdown{min-width:180px}}@media (max-width: 380px){.topbar-right{gap:2px}.toggle-pill{padding:5px}.model-selector{font-size:11.5px;padding:5px 7px}}