:root{--bg: #0f0f1a;--panel: #1a1a2e;--accent: #4f8cff;--text: #e8e8f0;--muted: #8888a0}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;overflow:hidden;overscroll-behavior:none;touch-action:manipulation}body{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,sans-serif;-webkit-tap-highlight-color:transparent}.app{display:flex;height:100%}.sidebar{width:280px;flex-shrink:0;background:#12121f;border-right:1px solid #22223a;display:flex;flex-direction:column;padding:calc(12px + env(safe-area-inset-top,0px)) 12px calc(12px + env(safe-area-inset-bottom,0px));gap:10px;overscroll-behavior:contain}.sidebar-head{padding-bottom:10px;border-bottom:1px solid #22223a}.new-chat-btn{width:100%;padding:9px 12px;background:var(--accent);border:none;border-radius:9px;color:#fff;font:inherit;font-weight:600;cursor:pointer}.new-chat-btn:hover{filter:brightness(1.1)}.chat-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:4px}.sidebar-empty{color:var(--muted);text-align:center;font-size:13px;margin-top:20px}.chat-item{display:flex;align-items:center;justify-content:space-between;gap:6px;padding:8px 10px;border-radius:8px;cursor:pointer;color:var(--text);font-size:14px}.chat-item:hover{background:#1a1a30}.chat-item.active{background:#232345}.chat-item-title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-item-actions{display:none;gap:2px}.chat-item:hover .chat-item-actions,.chat-item.active .chat-item-actions{display:flex}.chat-item-actions button{background:none;border:none;color:var(--muted);cursor:pointer;padding:2px 4px;font-size:13px;border-radius:4px}.chat-item-actions button:hover{background:#2a2a4a;color:var(--text)}.main{flex:1;display:flex;flex-direction:column;min-width:0}header{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:calc(12px + env(safe-area-inset-top,0px)) 16px 12px;border-bottom:1px solid #22223a}header h1{font-size:17px;margin:0;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.menu-btn{display:none;background:none;border:none;color:var(--text);font-size:20px;cursor:pointer;padding:4px 8px;border-radius:8px}.menu-btn:hover{background:#1a1a30}.header-left{display:flex;align-items:center;gap:4px}.temp-btn{display:inline-flex;align-items:center;justify-content:center;background:none;border:none;color:var(--muted);cursor:pointer;padding:6px;border-radius:8px}.temp-btn:hover{background:#1a1a30;color:var(--text)}.temp-btn.active{color:#ffb454;background:#2a2418}.hint-block{margin-top:18vh;text-align:center}.hint-main{color:var(--muted);font-size:20px;font-weight:600;margin:0 0 6px}.hint-sub{color:#666680;font-size:14px;margin:0}select{background:var(--panel);color:var(--text);border:1px solid #33335a;border-radius:8px;padding:6px 8px;max-width:45vw}.login-page{display:flex;justify-content:center;align-items:center;height:100%;background:var(--bg)}.login-card{background:var(--panel);border:1px solid #22223a;border-radius:16px;padding:36px 32px;width:100%;max-width:380px;text-align:center}.login-card h1{font-size:28px;margin:0 0 6px}.login-card h2{font-size:16px;color:var(--muted);font-weight:400;margin:0 0 24px}.login-card form{display:flex;flex-direction:column;gap:12px}.login-card input{background:#0f0f1a;color:var(--text);border:1px solid #33335a;border-radius:10px;padding:11px 14px;font:inherit;outline:none}.login-card input:focus{border-color:var(--accent)}.login-card button{padding:11px;border-radius:10px}.login-error{color:#ff6b6b;font-size:13px;margin:0}.remember-label{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:13px;cursor:pointer;margin:0}.remember-label input[type=checkbox]{accent-color:var(--accent)}.login-toggle{color:var(--muted);font-size:13px;margin:16px 0 0}.login-toggle a{color:var(--accent);text-decoration:none}.login-toggle a:hover{text-decoration:underline}.loading-screen{display:flex;justify-content:center;align-items:center;height:100%;color:var(--muted);font-size:24px}.header-right{display:flex;align-items:center;gap:6px}.logout-btn{background:none;border:none;font-size:18px;cursor:pointer;padding:4px 6px;border-radius:8px;line-height:1}.logout-btn:hover{background:#1a1a30}.profile-btn{display:inline-flex;align-items:center;justify-content:center;background:none;border:none;color:var(--muted);cursor:pointer;padding:6px;border-radius:8px}.profile-btn:hover{background:#1a1a30;color:var(--text)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;justify-content:center;align-items:center;z-index:50;padding:16px}.modal{background:var(--panel);border:1px solid #2a2a4a;border-radius:14px;width:100%;max-width:440px;max-height:88vh;overflow-y:auto;padding:20px}.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.modal-head h2{margin:0;font-size:18px}.modal-close{background:none;border:none;color:var(--muted);font-size:16px;cursor:pointer;padding:4px 8px;border-radius:6px}.modal-close:hover{background:#2a2a4a;color:var(--text)}.profile-section{border-top:1px solid #22223a;padding:14px 0}.profile-section h3{margin:0 0 10px;font-size:14px;color:var(--muted);font-weight:600}.profile-form{display:flex;flex-direction:column;gap:8px}.profile-form input{background:#0f0f1a;color:var(--text);border:1px solid #33335a;border-radius:8px;padding:9px 12px;font:inherit;outline:none}.profile-form input:focus{border-color:var(--accent)}.profile-form button{align-self:flex-start;padding:8px 16px;font-size:13px}.ok-msg{color:#4ade80;font-size:13px;margin:8px 0 0}.err-msg{color:#ff6b6b;font-size:13px;margin:8px 0 0}.user-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.user-list li{display:flex;justify-content:space-between;align-items:center;background:#0f0f1a;border-radius:8px;padding:8px 12px;font-size:14px}.user-date{color:var(--muted);font-size:12px}.admin-badge{background:#2a2418;color:#ffb454;font-size:11px;font-weight:600;border-radius:6px;padding:2px 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14px;font:inherit;font-size:13px;cursor:pointer}.btn-plain:hover{background:#2a2a4a}.btn-danger{background:none;color:#ff6b6b;border:1px solid #5a2a2a;border-radius:8px;padding:8px 14px;font:inherit;font-size:13px;cursor:pointer}.btn-danger:hover{background:#2a1414}.reset-form{width:100%;display:flex;flex-direction:column;gap:6px;padding:4px 0}.reset-form input{background:#0f0f1a;color:var(--text);border:1px solid #33335a;border-radius:8px;padding:8px 10px;font:inherit;font-size:13px;outline:none}.reset-actions{display:flex;gap:6px}.btn-small-ok{background:var(--accent);color:#fff;border:none;border-radius:7px;padding:6px 12px;font:inherit;font-size:12px;cursor:pointer}.btn-small-cancel{background:none;color:var(--muted);border:1px solid #33335a;border-radius:7px;padding:6px 12px;font:inherit;font-size:12px;cursor:pointer}.user-row.resetting{background:#1c2233}.mic-wrap{display:flex;align-items:center;gap:6px;flex-shrink:0;padding-bottom:2px}.mic-btn{display:inline-flex;align-items:center;justify-content:center;background:none;border:1px solid #33335a;color:var(--muted);cursor:pointer;padding:7px;border-radius:10px;transition:all .15s}.mic-btn:hover{background:#1a1a30;color:var(--text);border-color:var(--accent)}.mic-btn.recording{background:#5a2020;color:#ff6b6b;border-color:#ff6b6b;animation:mic-pulse 1.2s ease-in-out infinite}.mic-btn.busy{opacity:.5;cursor:default}.mic-spinner{display:inline-block;width:16px;height:16px;border:2px solid var(--muted);border-top-color:transparent;border-radius:50%;animation:spin .7s linear infinite}.rec-timer{font-size:13px;color:#ff6b6b;font-variant-numeric:tabular-nums;min-width:28px}@keyframes mic-pulse{0%,to{box-shadow:0 0 #ff6b6b66}50%{box-shadow:0 0 0 6px #ff6b6b00}}@keyframes spin{to{transform:rotate(360deg)}}main{flex:1;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;padding:16px;display:flex;flex-direction:column;gap:12px}.hint{color:var(--muted);text-align:center;margin-top:20vh}.msg{display:flex}.msg.user{justify-content:flex-end}.bubble{max-width:80%;padding:10px 14px;border-radius:14px;background:var(--panel);white-space:pre-wrap;word-wrap:break-word}.msg.user .bubble{background:var(--accent);color:#fff;border-bottom-right-radius:4px}.msg.assistant .bubble{border-bottom-left-radius:4px}.msg.context{justify-content:center}.context-bubble{background:#1c2233;border:1px solid #2c3a5a;width:92%;max-width:92%}.context-bubble pre{white-space:pre-wrap;word-wrap:break-word;font-family:inherit;font-size:13px;color:#aab4cc;margin:6px 0 0;max-height:200px;overflow-y:auto}.loading{color:var(--muted)}.reasoning{background:#14142a;border:1px solid #2a2a4a;border-radius:10px;margin-bottom:8px;padding:0;font-size:13px;overflow:hidden}.reasoning-toggle{width:100%;display:flex;align-items:center;gap:6px;background:none;border:none;color:var(--muted);cursor:pointer;font:inherit;padding:8px 10px;text-align:left}.reasoning-toggle:hover{background:#1a1a36}.reasoning-label{flex:1}.chevron{display:inline-block;transition:transform .2s}.chevron.closed{transform:rotate(-90deg)}.reasoning-body{padding:0 10px 10px}.reasoning-sentence{margin:6px 0;color:#9a9ab8;line-height:1.5}.error{color:#ff6b6b;text-align:center;padding:8px}footer{display:flex;flex-direction:column;gap:8px;padding:12px 16px calc(12px + env(safe-area-inset-bottom,0px));border-top:1px solid #22223a}.attach-chips{display:flex;flex-wrap:wrap;gap:6px}.attach-chip{display:inline-flex;align-items:center;gap:6px;background:#1c2233;border:1px solid #2c3a5a;border-radius:8px;padding:5px 10px;font-size:12px;color:#aab4cc;max-width:220px;overflow:hidden}.attach-chip button{background:none;border:none;color:var(--muted);cursor:pointer;font-size:12px;padding:0 2px;line-height:1}.attach-chip button:hover{color:#ff6b6b}.chip-thumb{width:26px;height:26px;object-fit:cover;border-radius:5px;flex-shrink:0}.chip-icon{color:#ff6b6b;flex-shrink:0}.chip-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.drop-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f0f1ae0;border:2px dashed var(--accent);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--accent);z-index:60;pointer-events:none}.input-row{display:flex;gap:8px;align-items:flex-end}.attach-btn{display:inline-flex;align-items:center;justify-content:center;background:none;border:1px solid #33335a;color:var(--muted);cursor:pointer;padding:7px;border-radius:10px;transition:all .15s;flex-shrink:0}.attach-btn:hover{background:#1a1a30;color:var(--text);border-color:var(--accent)}.attach-menu{position:fixed;bottom:76px;left:16px;z-index:40;background:var(--panel);border:1px solid #2a2a4a;border-radius:12px;padding:6px;display:flex;flex-direction:column;gap:2px;box-shadow:0 8px 30px #00000080}.attach-menu button{display:flex;align-items:center;gap:10px;background:none;border:none;color:var(--text);padding:10px 14px;font-size:14px;border-radius:8px;cursor:pointer;text-align:left;width:100%}.attach-menu button:hover{background:#2a2a4a}.attach-menu button svg{color:var(--muted)}.my-files-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.my-files-list li{display:flex;align-items:center;gap:10px;background:#0f0f1a;border:1px solid #22223a;border-radius:10px;padding:8px 12px;cursor:pointer}.my-files-list li:hover{border-color:var(--accent)}.my-file-thumb{width:40px;height:40px;object-fit:cover;border-radius:8px;flex-shrink:0}.my-file-icon{color:#ff6b6b;flex-shrink:0}.my-file-info{flex:1;min-width:0;display:flex;flex-direction:column}.my-file-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}.my-file-meta{color:var(--muted);font-size:12px}.my-file-actions{flex-shrink:0}.msg-attachments{display:flex;flex-direction:column;gap:6px;margin-bottom:6px}.msg-img{max-width:100%;max-height:320px;border-radius:10px;display:block;object-fit:contain}.msg-file{background:#1c2233;border:1px solid #2c3a5a;border-radius:8px;padding:6px 10px;font-size:12px;color:#aab4cc;display:inline-flex;align-items:center;gap:6px}.temp-toggle{display:flex;align-items:center;gap:4px;color:var(--muted);font-size:12px;white-space:nowrap;cursor:pointer;padding-bottom:8px}textarea{flex:1;resize:none;background:var(--panel);color:var(--text);border:1px solid #33335a;border-radius:10px;padding:10px 12px;font:inherit;outline:none;max-height:160px;overflow-y:auto}textarea:focus{border-color:var(--accent)}button{background:var(--accent);color:#fff;border:none;border-radius:10px;padding:0 18px;font:inherit;cursor:pointer}button:active{transform:scale(.97)}button:disabled{opacity:.5;cursor:default}.send-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;border:none;border-radius:50%;width:38px;height:38px;flex-shrink:0;cursor:pointer;transition:opacity .15s;padding:0}.send-btn:hover:not(:disabled){filter:brightness(1.1)}.send-btn:disabled{opacity:.4;cursor:default}.backdrop{display:none}@media (max-width: 720px){.sidebar{position:fixed;z-index:20;top:0;left:0;bottom:0;transform:translate(-105%);transition:transform .25s ease}.app.sidebar-visible .sidebar{transform:translate(0)}.app.sidebar-visible .backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;z-index:15}.menu-btn{display:inline-block}}