*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--primary:#6c63ff;--primary-hover:#5a52e0;--primary-light:#eef;--primary-muted:#6c63ff1a;--text-primary:#111827;--text-secondary:#4b5563;--text-muted:#9ca3af;--bg-app:#f3f4f6;--bg-sidebar:#fff;--bg-main:#fff;--bg-card:#fff;--bg-input:#fff;--bg-user-bubble:#6c63ff;--bg-bot-bubble:#fff;--border:#e5e7eb;--border-light:#f3f4f6;--shadow-xs:0 1px 2px #0000000f;--shadow-sm:0 1px 4px #00000014;--shadow-md:0 4px 12px #0000001a;--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--radius-xl:24px;color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;font-size:14px;line-height:1.55}[data-theme=dark]{--primary:#7c73ff;--primary-hover:#6b63ee;--primary-light:#2d2b4e;--primary-muted:#7c73ff26;--text-primary:#f9fafb;--text-secondary:#d1d5db;--text-muted:#6b7280;--bg-app:#111827;--bg-sidebar:#1f2937;--bg-main:#1a2030;--bg-card:#1f2937;--bg-input:#1f2937;--bg-user-bubble:#6c63ff;--bg-bot-bubble:#1f2937;--border:#374151;--border-light:#273244;--shadow-xs:0 1px 2px #0000004d;--shadow-sm:0 1px 4px #00000059;--shadow-md:0 4px 12px #00000073;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--primary:#7c73ff;--primary-hover:#6b63ee;--primary-light:#2d2b4e;--primary-muted:#7c73ff26;--text-primary:#f9fafb;--text-secondary:#d1d5db;--text-muted:#6b7280;--bg-app:#111827;--bg-sidebar:#1f2937;--bg-main:#1a2030;--bg-card:#1f2937;--bg-input:#1f2937;--bg-user-bubble:#6c63ff;--bg-bot-bubble:#1f2937;--border:#374151;--border-light:#273244;--shadow-xs:0 1px 2px #0000004d;--shadow-sm:0 1px 4px #00000059;--shadow-md:0 4px 12px #00000073;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}html,body{width:100%;height:100%;overflow:hidden}#root{flex-direction:row;width:100%;height:100%;display:flex;overflow:hidden}button{cursor:pointer;background:0 0;border:none;font-family:inherit}input,textarea{font-family:inherit}p{margin:0}.sidebar{background:var(--bg-sidebar);border-right:1px solid var(--border);overscroll-behavior:contain;touch-action:pan-y;flex-direction:column;width:240px;min-width:240px;transition:width .22s,min-width .22s;display:flex;overflow:hidden}.sidebar.collapsed{border-right:none;width:0;min-width:0}.sidebar-header{border-bottom:1px solid var(--border-light);align-items:center;gap:10px;padding:20px 16px 16px;display:flex}.chat-hamburger-btn{flex-shrink:0;margin-right:8px}.sidebar-title{color:var(--text-primary);letter-spacing:.02em;font-size:13px;font-weight:700}.bot-switcher{gap:6px;padding:10px 14px 4px;display:flex}.bot-switcher-btn{border:1px solid var(--border-light,#e2e8f0);color:var(--text-secondary,#64748b);cursor:pointer;white-space:nowrap;text-overflow:ellipsis;background:0 0;border-radius:8px;flex:1;padding:6px 4px;font-size:12px;font-weight:600;transition:background .15s,color .15s,border-color .15s;overflow:hidden}.bot-switcher-btn:hover:not(.active){background:var(--hover-bg,#0000000d);color:var(--text-primary,#1e293b)}.bot-switcher-btn.active{color:#fff;background:#2563eb;border-color:#2563eb}.access-toast{color:#fff;z-index:9999;pointer-events:none;white-space:nowrap;background:#ea580c;border-radius:8px;padding:12px 28px;font-size:14px;font-weight:500;position:fixed;top:24px;left:50%;transform:translate(-50%);box-shadow:0 4px 12px #0003}.sidebar-nav{padding:14px 12px 10px}.new-chat-btn{background:var(--primary);color:#fff;border-radius:var(--radius-md);-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;gap:8px;width:100%;padding:9px 14px;font-size:13.5px;font-weight:600;transition:background .15s,transform .1s;display:flex}.new-chat-btn:hover{background:var(--primary-hover);transform:translateY(-1px)}.new-chat-btn:active{transform:translateY(0)}.new-chat-btn svg{flex-shrink:0}.sidebar-section{flex-direction:column;flex:1;min-height:0;padding:4px 12px 8px;display:flex;overflow:hidden}.sidebar-section-header{align-items:center;gap:6px;margin-bottom:2px;padding:8px 4px 6px;display:flex}.sidebar-section-label{color:var(--text-muted);letter-spacing:.06em;text-transform:uppercase;font-size:11px;font-weight:600}.sidebar-icon-btn{width:26px;height:26px;color:var(--text-muted);border-radius:6px;justify-content:center;align-items:center;transition:background .15s,color .15s;display:flex}.sidebar-icon-btn:hover{background:var(--border-light);color:var(--text-secondary)}.sidebar-icon-btn.spinning svg{animation:.6s linear spinnerRotate}.conv-list{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;touch-action:pan-y;flex-direction:column;flex:1;gap:1px;min-height:0;display:flex;overflow-y:auto}.conv-list::-webkit-scrollbar{width:4px}.conv-list::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.conv-item-wrap{border-radius:var(--radius-sm);align-items:center;transition:background .12s;display:flex;position:relative}.conv-item-wrap:hover{background:var(--border-light)}.conv-item-wrap.active{background:var(--primary-light)}.conv-item-wrap--typing{position:relative}.conv-item-wrap--typing:after{content:"";background:var(--primary,#6366f1);pointer-events:none;border-radius:50%;width:7px;height:7px;animation:1.2s ease-in-out infinite dot-pulse;position:absolute;top:50%;right:36px;transform:translateY(-50%)}@keyframes dot-pulse{0%,to{opacity:1;transform:translateY(-50%)scale(1)}50%{opacity:.4;transform:translateY(-50%)scale(.75)}}.conv-item-wrap--replied{position:relative}.conv-item-wrap--replied:after{content:"";pointer-events:none;background:#22c55e;border-radius:50%;width:8px;height:8px;position:absolute;top:50%;right:36px;transform:translateY(-50%)}.conv-item{cursor:pointer;color:var(--text-secondary);text-align:left;flex:1;align-items:center;gap:8px;min-width:0;padding:8px 10px;font-size:13px;display:flex;overflow:hidden}.conv-item-wrap:hover .conv-item{color:var(--text-primary)}.conv-item-wrap.active .conv-item{color:var(--primary);font-weight:500}.conv-item svg{opacity:.6;flex-shrink:0}.conv-item-wrap.active .conv-item svg{opacity:1}.conv-item-title{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.conv-item-more-btn{width:24px;height:24px;color:var(--text-muted);opacity:0;pointer-events:none;border-radius:5px;flex-shrink:0;justify-content:center;align-items:center;margin-right:6px;transition:opacity .12s,background .12s,color .12s;display:flex}.conv-item-wrap:hover .conv-item-more-btn{opacity:1;pointer-events:auto}.conv-item-wrap:has(.conv-item-menu) .conv-item-more-btn{opacity:1;pointer-events:auto}.conv-item-more-btn:hover{background:var(--border);color:var(--text-primary)}.conv-item-menu{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-md);z-index:50;min-width:168px;padding:4px;animation:.1s menuFadeIn;position:absolute;top:calc(100% + 2px);right:4px}@keyframes menuFadeIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.conv-item-menu-item{width:100%;color:var(--text-secondary);text-align:left;border-radius:5px;align-items:center;gap:8px;padding:7px 10px;font-size:12.5px;transition:background .1s,color .1s;display:flex}.conv-item-menu-item:hover{background:var(--border-light);color:var(--text-primary)}.conv-item-menu-item--danger:hover{color:#dc2626;background:#dc262614}.conv-item-menu-divider{background:var(--border-light);height:1px;margin:4px 6px}.conv-item--renaming{cursor:default;flex:1;align-items:center;gap:8px;min-width:0;padding:6px 10px;display:flex;overflow:hidden}.conv-item-rename-input{background:var(--bg-input,var(--bg-card));border:1px solid var(--primary);min-width:0;color:var(--text-primary);border-radius:4px;outline:none;flex:1;padding:2px 6px;font-size:13px;line-height:1.5}.conv-section-label{letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);margin:0;padding:8px 4px 4px;font-size:10px;font-weight:700}.conv-item-menu-confirm{flex-direction:column;gap:8px;padding:8px 10px;display:flex}.conv-item-menu-confirm-text{color:var(--text-primary);font-size:12.5px;font-weight:500}.conv-item-menu-confirm-actions{gap:6px;display:flex}.conv-item-menu-confirm-cancel,.conv-item-menu-confirm-delete{border-radius:5px;flex:1;padding:5px 0;font-size:12px;font-weight:500;transition:background .1s,color .1s}.conv-item-menu-confirm-cancel{background:var(--border-light);color:var(--text-secondary)}.conv-item-menu-confirm-cancel:hover{background:var(--border);color:var(--text-primary)}.conv-item-menu-confirm-delete{color:#dc2626;background:#dc26261a}.conv-item-menu-confirm-delete:hover{color:#fff;background:#dc2626}.sidebar-empty{color:var(--text-muted);text-align:center;padding:12px 4px;font-size:12px}.sidebar-spinner{justify-content:center;padding:10px 0;display:flex}.sidebar-spinner-ring{border:2px solid var(--border-light);border-top-color:var(--primary);border-radius:50%;width:18px;height:18px;animation:.7s linear infinite sidebar-spin}@keyframes sidebar-spin{to{transform:rotate(360deg)}}.load-more-btn{width:100%;color:var(--text-muted);cursor:pointer;text-align:center;border-radius:var(--radius-sm);background:0 0;border:none;margin-top:2px;padding:6px 0;font-size:11px;transition:background .1s,color .1s}.load-more-btn:hover{background:var(--border-light);color:var(--text-primary)}.sidebar-footer{border-top:1px solid var(--border-light);flex-direction:column;gap:2px;padding:12px 12px 16px;display:flex}.upload-guide-overlay{z-index:1000;background:#00000073;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.upload-guide-card{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;width:100%;max-width:380px;overflow:hidden;box-shadow:0 8px 32px #0000002e}.upload-guide-header{border-bottom:1px solid var(--border-light);justify-content:space-between;align-items:center;padding:16px 16px 12px;display:flex}.upload-guide-title{color:var(--text-primary);font-size:14px;font-weight:700}.upload-guide-close{cursor:pointer;color:var(--text-muted);background:0 0;border:none;border-radius:4px;align-items:center;padding:4px;display:flex}.upload-guide-close:hover{background:var(--border-light);color:var(--text-primary)}.upload-guide-notice{background:var(--primary-muted);border-left:3px solid var(--primary);color:var(--text-secondary);border-radius:4px;margin:12px 16px;padding:8px 12px;font-size:12px}.upload-guide-section{padding:0 16px 14px}.upload-guide-section-title{text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:8px;font-size:11px;font-weight:700}.upload-guide-types{flex-direction:column;gap:5px;display:flex}.upload-guide-type-row{color:var(--text-secondary);align-items:center;gap:8px;font-size:12px;display:flex}.upload-guide-limits{border:1px solid var(--border-light);border-radius:8px;flex-direction:column;gap:0;display:flex;overflow:hidden}.upload-guide-limit-row{color:var(--text-secondary);border-bottom:1px solid var(--border-light);justify-content:space-between;align-items:center;padding:7px 12px;font-size:12px;display:flex}.upload-guide-limit-row:last-child{border-bottom:none}.upload-guide-limit-row strong{color:var(--text-primary);font-weight:600}.settings-btn{border-radius:var(--radius-sm);width:100%;color:var(--text-secondary);align-items:center;gap:8px;padding:9px 10px;font-size:13px;transition:background .12s,color .12s;display:flex}.settings-btn:hover{background:var(--border-light);color:var(--text-primary)}.settings-btn.active{background:var(--primary-light);color:var(--primary)}.sidebar-backdrop{z-index:199;pointer-events:none;background:#00000059;position:fixed;inset:0}.sidebar-close-trigger{z-index:198;position:fixed;inset:0 0 0 260px}.sheet-overlay{z-index:400;background:#00000073;align-items:flex-end;display:flex;position:fixed;inset:0}.sheet{background:var(--bg-card);border-radius:16px 16px 0 0;width:100%;padding:12px 0 32px;animation:.22s sheetUp;box-shadow:0 -4px 24px #0000002e}@keyframes sheetUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.sheet-title{color:var(--text-primary);text-align:center;border-bottom:1px solid var(--border-light);white-space:nowrap;text-overflow:ellipsis;margin-bottom:4px;padding:4px 20px 12px;font-size:13px;font-weight:600;overflow:hidden}.sheet-item{width:100%;color:var(--text-primary);cursor:pointer;text-align:left;background:0 0;border:none;align-items:center;gap:14px;padding:14px 24px;font-size:15px;display:flex}.sheet-item:active{background:var(--border-light)}.sheet-item--danger{color:#dc2626}.sheet-divider{background:var(--border-light);height:1px;margin:4px 0}.rename-overlay{z-index:500;background:#00000073;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.rename-dialog{background:var(--bg-card);border-radius:14px;flex-direction:column;gap:14px;width:100%;max-width:320px;padding:20px 20px 0;display:flex;box-shadow:0 8px 32px #00000047}.rename-dialog-title{color:var(--text-primary);text-align:center;margin:0;font-size:17px;font-weight:600}.rename-dialog-input{border:1px solid var(--border);background:var(--bg-input,var(--bg-card));width:100%;color:var(--text-primary);box-sizing:border-box;border-radius:8px;outline:none;padding:10px 12px;font-size:15px}.rename-dialog-input:focus{border-color:var(--primary)}.rename-dialog-actions{border-top:1px solid var(--border-light);border-radius:0 0 14px 14px;margin:0 -20px;display:flex;overflow:hidden}.rename-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;flex:1;padding:14px;font-size:16px}.rename-btn+.rename-btn{border-left:1px solid var(--border-light)}.rename-btn--ok{color:var(--primary);font-weight:600}.rename-btn--danger{color:#dc2626;font-weight:600}.rename-btn:active{background:var(--border-light)}.delete-dialog-subtitle{color:var(--text-muted);text-align:center;white-space:nowrap;text-overflow:ellipsis;margin:-6px 0 0;font-size:14px;overflow:hidden}.messages-wrapper{flex-direction:column;flex:1;gap:20px;padding:24px 20px;display:flex;overflow-y:auto}.messages-wrapper::-webkit-scrollbar{width:5px}.messages-wrapper::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.message{flex-direction:column;max-width:72%;display:flex}.message.user{align-self:flex-end;align-items:flex-end}.message.assistant{align-self:flex-start;align-items:flex-start}.message-sender{color:var(--primary);margin-bottom:5px;padding-left:2px;font-size:11.5px;font-weight:600}.message-time{color:var(--text-muted);margin-left:6px;font-size:10.5px;font-weight:400}.message-bubble{border-radius:var(--radius-lg);overflow-wrap:break-word;word-break:break-word;padding:10px 14px;font-size:13.5px;line-height:1.6}.message.user .message-bubble{background:var(--bg-user-bubble);color:#fff;border-bottom-right-radius:6px;box-shadow:0 2px 8px #6c63ff4d}.message.assistant .message-bubble{background:var(--bg-bot-bubble);color:var(--text-primary);border:1px solid var(--border);box-shadow:var(--shadow-sm);border-bottom-left-radius:6px}.message-bubble h1,.message-bubble h2,.message-bubble h3{color:var(--text-primary);margin:10px 0 4px;font-size:13.5px;font-weight:700}.message-bubble h1:first-child,.message-bubble h2:first-child,.message-bubble h3:first-child{margin-top:0}.message-bubble p{margin:0 0 6px}.message-bubble p:last-child{margin-bottom:0}.message-bubble ul,.message-bubble ol{margin:4px 0;padding-left:18px}.message-bubble li{margin-bottom:3px}.message-bubble strong{font-weight:700}.message-bubble code{background:var(--border-light);border-radius:4px;padding:1px 5px;font-family:ui-monospace,Consolas,monospace;font-size:12px}.message-images{flex-direction:column;gap:10px;margin-top:12px;display:flex}.message-image{border:1px solid var(--border);cursor:pointer;border-radius:8px;max-width:100%;margin-top:16px;display:block}.message-image:hover{opacity:.9}.message-image--zoomable{cursor:zoom-in}.lightbox-overlay{z-index:1000;cursor:zoom-out;background:#000000e0;justify-content:center;align-items:center;animation:.15s lightboxFadeIn;display:flex;position:fixed;inset:0}@keyframes lightboxFadeIn{0%{opacity:0}to{opacity:1}}.lightbox-inner{cursor:default;touch-action:none;border-radius:8px;justify-content:center;align-items:center;max-width:90vw;max-height:85vh;display:flex;overflow:hidden}.lightbox-inner::-webkit-scrollbar{width:6px;height:6px}.lightbox-inner::-webkit-scrollbar-thumb{background:#ffffff40;border-radius:4px}.lightbox-img-wrap{justify-content:center;align-items:center;min-width:100%;min-height:100%;padding:16px;display:flex}.lightbox-img{transform-origin:50%;-webkit-user-select:none;user-select:none;border-radius:6px;max-width:85vw;height:auto;max-height:78vh;display:block;box-shadow:0 8px 40px #0009}.lightbox-controls{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#fff;cursor:default;z-index:1001;background:#141414d9;border:1px solid #ffffff1f;border-radius:999px;align-items:center;gap:6px;padding:7px 14px;display:flex;position:fixed;bottom:28px;left:50%;transform:translate(-50%)}.lightbox-btn{color:#fff;background:0 0;border-radius:50%;justify-content:center;align-items:center;width:30px;height:30px;font-size:18px;font-weight:500;line-height:1;transition:background .12s;display:flex}.lightbox-btn:hover{background:#ffffff26}.lightbox-btn--reset{letter-spacing:.02em;border-radius:14px;width:auto;padding:0 10px;font-size:12px;font-weight:600}.lightbox-btn--close{border-left:1px solid #ffffff26;border-radius:0;width:auto;margin-left:4px;padding-left:10px;font-size:16px}.lightbox-btn--close:hover{color:#ff6b6b;background:0 0}.lightbox-zoom-label{text-align:center;color:#fffc;min-width:40px;font-size:12px;font-weight:600}.message-image-placeholder{border:1px dashed var(--border);min-height:60px;color:var(--text-muted);border-radius:8px;justify-content:center;align-items:center;margin-top:8px;padding:12px;font-size:12px;display:flex}.message-citations{margin-top:14px}.citations-label{color:var(--text-secondary);letter-spacing:.01em;margin:0 0 6px;font-size:13.5px;font-weight:700}.citations-list{flex-direction:column;gap:4px;margin:0;padding-left:18px;display:flex}.citations-list li{color:var(--text-secondary);font-size:12px;line-height:1.5}.citations-list a{color:#2563eb;word-break:break-word;text-decoration:none}[data-theme=dark] .citations-list a{color:#60a5fa}[data-theme=dark] .message-citations{background:#ffffff0d;border:1px solid #ffffff1f;border-radius:8px;padding:10px 14px}[data-theme=dark] .citations-label{color:#f3f4f6}[data-theme=dark] .citations-list li{color:#d1d5db}[data-theme=dark] .citations-list span{color:#9ca3af}.citations-list a:hover{text-decoration:underline}.citations-list span{color:var(--text-muted);word-break:break-word}.message-actions{justify-content:flex-end;align-items:center;gap:2px;margin-top:8px;display:flex}.msg-action-btn{min-width:36px;color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:6px;flex-direction:column;justify-content:center;align-items:center;gap:2px;padding:5px 6px;font-size:10px;line-height:1;transition:background .15s,color .15s;display:flex}.msg-action-btn:hover{background:var(--bg-hover,#00000012);color:var(--text-primary)}.msg-action-btn.active-up{color:#16a34a;background:#16a34a1a}.msg-action-btn.active-down{color:#dc2626;background:#dc26261a}.msg-action-btn.voted-off,.msg-action-btn:disabled:not(.active-up):not(.active-down){color:var(--text-muted);opacity:.3;cursor:default}.msg-action-label{color:inherit;letter-spacing:.01em;font-size:10px}.msg-copy-wrap{align-items:center;display:flex;position:relative}.msg-copied-tip{background:var(--bg-tooltip,#333);color:#fff;white-space:nowrap;pointer-events:none;border-radius:4px;padding:2px 7px;font-size:11px;position:absolute;top:50%;right:calc(100% + 6px);transform:translateY(-50%)}.message-attachments{flex-wrap:wrap;gap:5px;margin-top:7px;display:flex}.message-attachment-chip{color:#ffffffe6;background:#ffffff2e;border-radius:12px;align-items:center;gap:4px;max-width:180px;padding:3px 8px;font-size:11.5px;display:inline-flex;overflow:hidden}.input-area{background:var(--bg-main);padding:12px 24px 16px}.input-container{background:var(--bg-input);border:1.5px solid var(--border);border-radius:18px;flex-direction:column;transition:border-color .15s,box-shadow .15s;display:flex;overflow:hidden;box-shadow:0 2px 12px #00000012}.input-container:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-muted), 0 2px 12px #00000012}.input-field{width:100%;color:var(--text-primary);resize:none;box-sizing:border-box;background:0 0;border:none;outline:none;min-height:56px;max-height:160px;padding:16px 18px 10px;font-size:14.5px;line-height:1.6;overflow-y:auto}.input-field::placeholder{color:var(--text-muted)}.input-field::-webkit-scrollbar{width:4px}.input-field::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.input-actions-row{justify-content:space-between;align-items:center;padding:6px 12px 12px 14px;display:flex}.input-left-actions{align-items:center;gap:2px;display:flex}.input-action-btn{border-radius:var(--radius-sm);width:32px;height:32px;color:var(--text-muted);flex-shrink:0;justify-content:center;align-items:center;transition:background .12s,color .12s;display:flex}.input-action-btn:hover{background:var(--border-light);color:var(--text-secondary)}.send-btn{background:var(--primary);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;transition:background .15s,transform .1s,opacity .15s;display:flex}.send-btn:hover:not(:disabled){background:var(--primary-hover);transform:scale(1.05)}.send-btn:active:not(:disabled){transform:scale(.96)}.send-btn:disabled{opacity:.4;cursor:not-allowed}.input-hint{text-align:center;color:var(--text-muted);letter-spacing:.01em;margin-top:8px;font-size:11px}.file-preview-strip{border-bottom:1px solid var(--border-light);flex-wrap:wrap;gap:6px;padding:10px 14px 4px;display:flex}.file-chip{background:var(--primary-muted,#6c63ff1a);border:1px solid var(--primary-light,#6c63ff40);color:var(--text-secondary);border-radius:20px;align-items:center;gap:5px;max-width:200px;padding:4px 8px 4px 7px;font-size:12px;display:inline-flex;overflow:hidden}.file-chip-icon{flex-shrink:0;font-size:13px;line-height:1}.file-chip-name{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.file-chip-remove{width:16px;height:16px;color:var(--text-muted);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;transition:background .1s,color .1s;display:flex}.file-chip-remove:hover{color:#dc2626;background:#dc26261f}.file-error{color:#dc2626;margin:0;padding:4px 14px 0;font-size:11.5px}.input-action-btn--active{color:var(--primary)!important}@media (width<=768px){.input-field{font-size:16px}}.prompt-chips-area{margin-bottom:8px}.prompt-chips-row{scrollbar-width:none;justify-content:center;gap:8px;padding-bottom:2px;display:flex;overflow-x:auto}.prompt-chips-row::-webkit-scrollbar{display:none}.prompt-chip{border:1px solid var(--border);background:var(--bg-card);color:var(--text-secondary);white-space:nowrap;cursor:pointer;border-radius:999px;flex-shrink:0;padding:6px 14px;font-size:13px;transition:border-color .15s,background .15s,color .15s}.prompt-chip:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}.prompt-chip--active{border-color:var(--primary);background:var(--primary-muted);color:var(--primary)}.prompt-panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-md);margin-bottom:8px;padding:6px 0}.prompt-panel-header{justify-content:space-between;align-items:center;padding:6px 14px 8px;display:flex}.prompt-panel-title{text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);font-size:12px;font-weight:700}.prompt-panel-close{color:var(--text-muted);padding:0 4px;font-size:20px;line-height:1}.prompt-panel-item{text-align:left;width:100%;color:var(--text-primary);cursor:pointer;background:0 0;border:none;padding:10px 14px;font-size:14px;transition:background .12s;display:block}.prompt-panel-item:hover{background:var(--primary-muted);color:var(--primary)}.chat-area{background:var(--bg-main);flex-direction:column;flex:1 1 0;width:0;min-width:0;display:flex;position:relative;overflow:hidden}.scroll-to-bottom-btn{background:var(--bg-card);border:1px solid var(--border);width:36px;height:36px;box-shadow:var(--shadow-md);color:var(--text-secondary);cursor:pointer;z-index:20;border-radius:50%;justify-content:center;align-items:center;font-size:18px;transition:background .15s,color .15s,border-color .15s;display:flex;position:absolute;bottom:180px;left:50%;transform:translate(-50%)}.scroll-to-bottom-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary)}.ptr-indicator{color:var(--text-muted);background:var(--bg-main);z-index:11;justify-content:center;align-items:flex-end;gap:8px;padding-bottom:8px;display:flex;position:fixed;top:0;left:0;right:0;overflow:hidden}.ptr-arrow{flex-shrink:0}.ptr-label{white-space:nowrap;font-size:12px;font-weight:500}.chat-header{border-bottom:1px solid var(--border);background:var(--bg-main);align-items:center;min-height:52px;padding:12px 20px;display:flex}@media (width<=768px){.chat-header{z-index:10;position:fixed;top:0;left:0;right:0}.messages-wrapper{padding-top:76px}}.chat-header-title{color:var(--text-primary);font-size:14px;font-weight:600}.welcome{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:0;padding:40px 24px 24px;display:flex;overflow-y:auto}.welcome-logo{margin-bottom:20px}.welcome-greeting{color:var(--text-primary);letter-spacing:-.4px;margin-bottom:8px;font-size:26px;font-weight:700}.welcome-greeting-name{color:var(--primary)}.welcome-cursor{color:var(--primary);margin-left:2px;font-weight:300;transition:opacity .2s;animation:.75s step-end infinite welcome-blink;display:inline-block}@keyframes welcome-blink{0%,to{opacity:1}50%{opacity:0}}.welcome-hidden{opacity:0;pointer-events:none}.welcome-fade-in{animation:.5s forwards welcome-appear}.welcome-fade-in--delay{opacity:0;animation-delay:.15s}@keyframes welcome-appear{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.welcome-subtitle{color:var(--text-muted);margin-bottom:36px;font-size:14px}.suggestions-label{letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);text-align:center;align-self:stretch;margin-bottom:14px;font-size:10.5px;font-weight:700}.suggestion-pills{flex-direction:column;align-items:flex-start;gap:10px;margin-top:4px;display:flex}.suggestion-pill{border:1px solid var(--border);background:var(--bg-card);color:var(--text-primary);cursor:pointer;text-align:left;border-radius:999px;padding:8px 18px;font-size:13.5px;transition:border-color .15s,background .15s,color .15s}.suggestion-pill:hover{border-color:var(--primary);background:var(--primary-muted);color:var(--primary)}.chat-switching{color:var(--primary);opacity:.6;flex:1;justify-content:center;align-items:center;display:flex}.chat-spinner{animation:.7s linear infinite spinnerRotate}.typing-indicator{background:var(--bg-bot-bubble);border:1px solid var(--border);border-radius:var(--radius-lg);width:fit-content;box-shadow:var(--shadow-sm);border-bottom-left-radius:6px;align-items:center;gap:4px;padding:12px 16px;display:flex}.typing-dot{background:var(--text-muted);border-radius:50%;width:7px;height:7px;animation:1.2s ease-in-out infinite typingBounce}.typing-dot:first-child{animation-delay:0s}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}.date-separator{color:var(--text-muted);text-align:center;align-items:center;gap:10px;margin:12px 16px;font-size:11px;display:flex}.date-separator:before,.date-separator:after{content:"";background:var(--border-color,#e0e0e0);flex:1;height:1px}@keyframes typingBounce{0%,60%,to{opacity:.4;transform:translateY(0)}30%{opacity:1;transform:translateY(-5px)}}.settings-panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);width:224px;box-shadow:var(--shadow-md);z-index:100;padding:16px;animation:.12s panelFadeIn;position:fixed;bottom:70px;left:12px}@keyframes panelFadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.settings-panel-divider{background:var(--border);height:1px;margin:12px 0}.settings-panel-section-label{letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);margin-bottom:10px;font-size:10.5px;font-weight:700}.theme-segmented{background:var(--border-light);border-radius:var(--radius-sm);gap:2px;padding:3px;display:flex}.theme-option{color:var(--text-secondary);text-align:center;background:0 0;border-radius:6px;flex:1;padding:6px 0;font-size:12.5px;font-weight:500;transition:background .15s,color .15s,box-shadow .15s}.theme-option:hover:not(.active){color:var(--text-primary)}.theme-option.active{background:var(--bg-card);color:var(--text-primary);box-shadow:var(--shadow-xs);font-weight:600}.app{background:var(--bg-app);width:100%;height:100dvh;display:flex;overflow:hidden}.signing-in-screen{background:var(--bg-app);z-index:2000;flex-direction:column;justify-content:center;align-items:center;gap:16px;display:flex;position:fixed;inset:0}.signin-dots{gap:10px;display:flex}.signin-dot{width:30px;height:30px;animation:1s ease-in-out infinite signinPulse;transform:rotate(45deg)}@keyframes signinPulse{0%,to{opacity:.4;transform:rotate(45deg)scale(1)}50%{opacity:1;transform:rotate(45deg)scale(1.5)}}.signing-in-title{color:var(--text-muted);letter-spacing:.02em;margin:0;font-size:14px;font-weight:500}@keyframes spinnerRotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.nuhs-logo{display:inline-flex}@media (width<=768px){.sidebar{z-index:200;height:100%;transition:transform .25s;position:fixed;top:0;left:0;transform:translate(0);box-shadow:4px 0 24px #0000002e;width:260px!important;min-width:260px!important}.sidebar.collapsed{box-shadow:none;transform:translate(-100%)}.settings-panel{z-index:300;width:calc(100vw - 32px);max-width:320px;bottom:80px;left:50%;transform:translate(-50%)}.message{max-width:88%}}@media (hover:none){.conv-item-more-btn{opacity:1;color:var(--text-secondary);pointer-events:auto}}@media (width<=960px){.sidebar{width:200px;min-width:200px}}