:root{--brand-color:#ccc}*,:before,:after{box-sizing:border-box}html,body,#root{width:100%;height:100%;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.header{background:#fff;border-bottom:1px solid #e5e7eb;flex-shrink:0;justify-content:center;align-items:center;width:100%;height:52px;display:flex;position:relative}.header__logo{align-items:center;display:flex;position:absolute;left:20px}.header__brand{letter-spacing:0;color:var(--brand-color);font-family:Montserrat,sans-serif;font-size:28px;font-style:normal;font-weight:700;line-height:36px}.app-layout{flex-direction:column;width:100%;height:100vh;display:flex;overflow:hidden}.app-layout__main{flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.btn{color:#374151;cursor:pointer;letter-spacing:.1px;background:#fff;border:1.5px solid #d1d5db;border-radius:6px;justify-content:center;align-items:center;gap:10px;width:100%;padding:10px 16px;font-family:inherit;font-size:14px;font-weight:500;transition:background .15s,border-color .15s;display:flex}.btn:hover{background:#f9fafb;border-color:#9ca3af}.btn:active{background:#f3f4f6}.btn__icon{flex-shrink:0;align-items:center;display:flex}.btn__spinner{opacity:.9;border:2px solid;border-right-color:#0000;border-radius:50%;width:16px;height:16px;animation:.7s linear infinite btn-spin}@keyframes btn-spin{to{transform:rotate(360deg)}}.btn:disabled{cursor:default}.btn--primary{background:var(--brand-color);color:#fff;border-color:#0000}.btn--primary:hover,.btn--primary:active{background:var(--brand-color);border-color:#0000}.btn--ghost{color:#6b7280;background:0 0;border-color:#0000;justify-content:flex-start;align-items:flex-start;gap:8px;padding:6px 0;font-family:Roboto,sans-serif;line-height:1.4;transition:color .15s}.btn--ghost:hover{color:#374151;background:0 0;border-color:#0000}.btn--ghost:active{background:0 0;border-color:#0000}.chat-input{flex-direction:column;flex-shrink:0;display:flex}.chat-send-btn:not(:disabled){cursor:pointer}.chat-send-btn:disabled,.chat-send-btn:disabled:hover{cursor:not-allowed;opacity:.7;background:#d1d5db;border-color:#d1d5db}.chat-attach-btn{color:#6b7280;cursor:pointer;background:0 0;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;transition:background .15s,color .15s;display:flex}.chat-attach-btn:hover:not(:disabled){color:#111;background:#f1f2f4}.chat-attach-btn:disabled{opacity:.5;cursor:not-allowed}.chat-file-input{display:none}.chat-attachment{background:#f1f2f4;border-radius:10px;align-self:flex-start;align-items:center;gap:10px;max-width:calc(100% - 104px);margin:0 52px;padding:6px 10px;display:inline-flex}.chat-attachment__thumb-wrap{flex-shrink:0;width:36px;height:36px;position:relative}.chat-attachment__thumb{object-fit:cover;border-radius:6px;width:36px;height:36px;display:block}.chat-attachment__uploading{color:var(--brand-color);background:#ffffffb3;border-radius:6px;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.chat-attachment__uploading svg{width:18px;height:18px}.chat-attachment__name{color:#374151;text-overflow:ellipsis;white-space:nowrap;font-family:Roboto,sans-serif;font-size:13px;overflow:hidden}.chat-attachment__remove{color:#6b7280;cursor:pointer;background:0 0;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;font-size:18px;line-height:1;display:flex}.chat-attachment__remove:hover{color:#111;background:#e2e4e8}.delete-modal-overlay{z-index:100;background:#0006;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.delete-modal{background:#fff;border-radius:12px;flex-direction:column;gap:20px;width:360px;padding:28px 28px 24px;font-family:Roboto,system-ui,sans-serif;display:flex;box-shadow:0 8px 32px #0000001f}.delete-modal__title{color:#111;margin:0;font-size:16px;font-weight:600}.delete-modal__body{color:#6b7280;margin:0;font-size:13px;line-height:1.5}.delete-modal__actions{justify-content:flex-end;gap:10px;display:flex}.delete-modal__cancel{color:#374151;cursor:pointer;background:0 0;border:1.5px solid #d1d5db;border-radius:6px;padding:8px 18px;font-family:inherit;font-size:13px;font-weight:500;transition:border-color .15s,background .15s}.delete-modal__cancel:hover{background:#f9fafb;border-color:#9ca3af}.delete-modal__confirm{background:var(--brand-color);color:#fff;cursor:pointer;border:1.5px solid #0000;border-radius:6px;padding:8px 18px;font-family:inherit;font-size:13px;font-weight:500;transition:opacity .15s}.delete-modal__confirm:hover{opacity:.85}.delete-modal__confirm:disabled{opacity:.6;cursor:not-allowed}.display-image-wrap{max-width:100%;line-height:0;position:relative}.display-image{object-fit:cover;cursor:zoom-in;border-radius:12px;width:auto;max-width:min(320px,100%);height:auto;max-height:320px;display:block}.display-image__actions{opacity:0;gap:6px;transition:opacity .15s;display:flex;position:absolute;top:8px;right:8px}.display-image-wrap:hover .display-image__actions,.display-image__actions:focus-within{opacity:1}.display-image__action{color:#fff;cursor:pointer;background:#1111118c;border:none;border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;transition:background .15s;display:flex}.display-image__action:hover:not(:disabled){background:#111c}.display-image__action:disabled{cursor:default}@media (hover:none){.display-image__actions{opacity:1}}.image-viewer{z-index:1000;background:#000c;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.image-viewer__img{object-fit:contain;cursor:default;border-radius:8px;max-width:90vw;max-height:90vh}.image-viewer__close{color:#fff;cursor:pointer;background:#ffffff26;border:none;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;font-size:26px;line-height:1;display:flex;position:fixed;top:16px;right:20px}.image-viewer__close:hover{background:#ffffff4d}.display-image__placeholder{width:200px;max-width:100%;height:160px;color:var(--brand-color);background:#f1f2f4;border-radius:12px;justify-content:center;align-items:center;display:flex}.display-image--error{color:#6b7280;background:#f1f2f4;border:1px dashed #cbd0d8;border-radius:12px;align-items:center;padding:14px 16px;font-family:Roboto,sans-serif;font-size:13px;display:inline-flex}.input{color:#111;background:#fff;border:1px solid #e5e7eb;border-radius:100px;outline:none;flex:1;height:48px;padding:0 20px;font-family:Roboto,sans-serif;font-size:14px;transition:border-color .15s}.input::placeholder{color:#9ca3af}.input:focus{border-color:var(--brand-color)}.input-wrapper{flex:1;position:relative}.input-wrapper .input{flex:none;width:100%}.input-wrapper__icon{pointer-events:none;z-index:1;align-items:center;display:flex;position:absolute;top:50%;left:14px;transform:translateY(-50%)}.input--has-icon{padding-left:40px}.login-card{text-align:center;background:#fff;border-radius:14px;width:320px;padding:36px 32px 32px}.login-card__logo{justify-content:center;margin-bottom:20px;display:flex}.login-card__heading{color:#111;letter-spacing:-.5px;margin:0 0 8px;font-size:26px;font-weight:700}.login-card__subtext{color:#6b7280;margin:0 0 24px;font-size:13px;line-height:1.5}.login-card__form{text-align:left;flex-direction:column;gap:16px;display:flex}.login-card__field{flex-direction:column;gap:6px;display:flex}.login-card__label{color:#374151;font-size:13px;font-weight:500}.login-card__password-wrapper{position:relative}.login-card__password-input{padding-right:40px}.login-card__toggle-pw{cursor:pointer;color:#9ca3af;background:0 0;border:none;align-items:center;padding:0;transition:color .15s;display:flex;position:absolute;top:50%;right:12px;transform:translateY(-50%)}.login-card__toggle-pw:hover{color:#6b7280}.login-card__form-footer{justify-content:flex-end;margin-top:-8px;display:flex}.login-card__forgot{cursor:pointer;color:var(--brand-color);background:0 0;border:none;padding:0;font-family:inherit;font-size:12px;transition:opacity .15s}.login-card__forgot:hover{opacity:.75}.login-card__notice{color:#991b1b;text-align:center;background:#fef2f2;border:1px solid #fca5a5;border-radius:6px;margin:16px 0 0;padding:8px 12px;font-size:13px}.logo{color:var(--brand-color);align-items:flex-end;gap:6px;padding-bottom:10px;display:flex;overflow:visible}.logo__word{align-items:flex-end;gap:2px;display:flex;overflow:visible}.logo__registered{align-self:flex-start;margin-top:8px}.logo__letter--descender{position:relative;top:10px}.markdown-message{color:#111;word-break:break-word;font-family:Roboto,sans-serif;font-size:14px;line-height:1.65}.markdown-message>:first-child{margin-top:0}.markdown-message>:last-child{margin-bottom:0}.markdown-message p{margin:0 0 10px}.markdown-message h1,.markdown-message h2,.markdown-message h3,.markdown-message h4{margin:14px 0 6px;font-size:15px;font-weight:700}.markdown-message strong{font-weight:700}.markdown-message em{font-style:italic}.markdown-message ul,.markdown-message ol{margin:4px 0 10px;padding-left:22px}.markdown-message li{margin-bottom:4px}.markdown-message hr{border:none;border-top:1px solid #e5e7eb;margin:12px 0}.markdown-message a{color:var(--brand-color);text-decoration:underline}.markdown-message code{background:#f1f2f4;border-radius:4px;padding:1px 5px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px}.markdown-message pre{background:#f1f2f4;border-radius:8px;padding:12px;overflow-x:auto}.markdown-message pre code{background:0 0;padding:0}.markdown-message table{border-collapse:collapse;margin:8px 0;font-size:13px}.markdown-message th,.markdown-message td{text-align:left;border:1px solid #e5e7eb;padding:6px 10px}.markdown-message blockquote{color:#4b5563;border-left:3px solid #e5e7eb;margin:8px 0;padding-left:12px}.chat-sidebar{background:#fafafa;border-right:1px solid #e5e7eb;flex-direction:column;flex-shrink:0;align-items:flex-start;gap:30px;width:300px;padding:24px 20px;display:flex;overflow:hidden}.chat-sidebar__top{flex-direction:column;align-self:stretch;align-items:flex-start;gap:10px;display:flex}.chat-sidebar__new-btn{cursor:pointer;color:var(--brand-color);background:0 0;border:none;align-items:center;gap:8px;padding:4px 2px;font-family:Roboto,sans-serif;font-size:14px;font-weight:500;transition:opacity .15s;display:flex}.chat-sidebar__new-btn:hover{opacity:.75}.chat-sidebar__search{width:100%}.chat-sidebar__search-wrapper{width:100%;position:relative}.chat-sidebar__search-clear{color:#9ca3af;cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;width:18px;height:18px;padding:0;font-size:16px;line-height:1;transition:color .15s;display:flex;position:absolute;top:50%;right:8px;transform:translateY(-50%)}.chat-sidebar__search-clear:hover{color:#374151}.chat-sidebar__conversations{flex-direction:column;flex:1;align-self:stretch;align-items:flex-start;gap:10px;min-height:0;display:flex}.chat-sidebar__conversations-header{justify-content:space-between;align-self:stretch;align-items:center;display:flex}.chat-sidebar__label{color:var(--Neutral-500,#8e8e8e);font-family:var(--body-family,Roboto);font-size:var(--body-size-xs,14px);font-style:normal;font-weight:var(--body-weight-medium,500);line-height:var(--body-line-height-xs,20px)}.chat-sidebar__clear-btn{cursor:pointer;color:var(--brand-color);background:0 0;border:none;padding:0;font-family:Roboto,sans-serif;font-size:12px;font-weight:500;transition:opacity .15s}.chat-sidebar__clear-btn:hover{opacity:.75}.chat-sidebar__clear-btn:disabled{opacity:.4;cursor:not-allowed}.chat-sidebar__status{text-align:center;color:#6b7280;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:12px;width:100%;font-family:Roboto,sans-serif;font-size:13px;display:flex}.chat-sidebar__retry-btn{cursor:pointer;color:var(--brand-color);background:0 0;border:none;align-items:center;gap:8px;font-family:Roboto,sans-serif;font-size:14px;font-weight:500;display:flex}.chat-sidebar__retry-btn:hover{opacity:.8}.sidebar-spinner{color:var(--brand-color);animation:1s linear infinite sidebar-spin}@keyframes sidebar-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.chat-sidebar__list{flex-direction:column;align-self:stretch;align-items:flex-start;gap:10px;margin:0;padding:0;list-style:none;display:flex;overflow-y:auto}.chat-sidebar__list li{width:100%}.conversation-item-wrapper{align-items:center;width:100%;padding:0 8px;display:flex;position:relative}.conversation-item-wrapper .conversation-item{flex:1;min-width:0}.conv-more-btn{color:#9ca3af;cursor:pointer;background:0 0;border:none;border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;transition:background .15s,color .15s;display:flex}.conv-more-btn:hover{color:#374151;background:#e5e7eb}.conv-menu{z-index:1000;background:#fff;border:1px solid #e5e7eb;border-radius:6px;min-width:110px;padding:4px;box-shadow:0 4px 12px #00000014}.conv-menu__item{text-align:left;cursor:pointer;background:0 0;border:none;border-radius:4px;width:100%;padding:7px 12px;font-family:Roboto,sans-serif;font-size:13px;transition:background .12s;display:block}.conv-menu__item--danger{color:#dc2626}.conv-menu__item--danger:hover{background:#fef2f2}.conversation-item{cursor:pointer;text-align:left;width:100%;color:inherit;background:0 0;border:none;align-self:stretch;align-items:flex-start;gap:10px;padding:12px 0;font-family:Roboto,sans-serif;text-decoration:none;transition:background .15s;display:flex}.conversation-item-wrapper:hover{background:#f3f4f6}.conversation-item-wrapper--active,.conversation-item-wrapper--active:hover{background:#e9eef6}.conversation-item__icon{height:var(--body-line-height-xs,25px);flex-shrink:0;align-items:center;display:flex}.conversation-item__content{flex-direction:column;flex:1;gap:3px;min-width:0;display:flex}.conversation-item__title{color:#1f1f1f;font-family:var(--body-family,Roboto);font-size:var(--body-size-xs,14px);font-style:normal;font-weight:var(--body-weight-medium,500);line-height:var(--body-line-height-xs,20px);white-space:nowrap;text-overflow:ellipsis;display:block;overflow:hidden}.conversation-item__meta{justify-content:space-between;align-items:center;display:flex}.conversation-item__date,.conversation-item__count{color:#6b7280;font-size:11px}.source-column{flex-shrink:0;width:340px;padding:20px 16px;overflow-y:auto}.source-panel{background:#fff;border:1px solid #e5e7eb;border-radius:20px;flex-direction:column;gap:14px;padding:20px 16px;display:flex}.source-panel__title{color:#111;margin:0;font-family:Roboto,sans-serif;font-size:14px;font-weight:700}.source-panel__list{flex-direction:column;gap:12px;width:100%;margin:0;padding:0;list-style:none;display:flex}.source-panel__item{box-sizing:border-box;background:#fff9fb;border:1px solid #fde9ef;border-radius:12px;align-items:center;gap:10px;width:100%;padding:12px 16px;display:flex}.source-panel__file-icon{flex-shrink:0;align-items:center;display:flex}.source-panel__file-name{color:#374151;word-break:break-word;font-family:Roboto,sans-serif;font-size:13px;line-height:1.45}.source-panel__show-all-btn{border-radius:20px;width:100%}.chat-page{flex-direction:column;flex:1;height:100%;display:flex;overflow:hidden}.chat-page__body{flex:1;display:flex;overflow:hidden}.chat-main{flex-direction:column;flex:1;min-width:0;display:flex;overflow:hidden}.chat-main__title{text-align:center;color:#111;flex-shrink:0;margin:20px 0 0;padding:0;font-family:Montserrat,sans-serif;font-size:17px;font-weight:700}.chat-messages{flex-direction:column;flex:1;gap:20px;min-height:0;padding:20px 52px;display:flex;position:relative;overflow-y:auto}.user-message{flex-direction:column;align-items:flex-end;gap:6px;display:flex}.user-message__bubble{background:var(--brand-color);color:#fff;border-radius:18px 18px 4px;max-width:65%;padding:10px 16px;font-family:Roboto,sans-serif;font-size:14px;line-height:1.5}.user-message__meta{color:#9ca3af;align-items:center;gap:6px;font-family:Roboto,sans-serif;font-size:11px;display:flex}.chat-error{color:#991b1b;background:#fef2f2;border:1px solid #fca5a5;border-radius:6px;padding:8px 12px;font-size:13px;display:inline-block}.assistant-message{color:#111;font-family:Roboto,sans-serif;font-size:14px;line-height:1.65}.assistant-message p{margin:0 0 10px}.assistant-message__heading{color:#111;margin:14px 0 6px;font-family:Roboto,sans-serif;font-size:15px;font-weight:600}.assistant-message__subheading{margin:12px 0 4px;font-weight:700}.assistant-message ol{margin:4px 0 10px;padding-left:22px}.assistant-message ol li{margin-bottom:4px}.assistant-message__meta{color:#9ca3af;align-items:center;gap:6px;margin-top:12px;font-family:Roboto,sans-serif;font-size:11px;display:flex}.chat-icon{flex-shrink:0;align-items:center;display:flex}.chat-input-row{flex-shrink:0;align-items:center;gap:10px;padding:16px 52px 20px;display:flex}.chat-send-btn{border-radius:50%;flex-shrink:0;width:48px;height:48px;padding:0}.chat-messages__loading-more{pointer-events:none;justify-content:center;align-items:center;display:flex;position:absolute;top:8px;left:0;right:0}.typing-indicator{background:#f1f2f4;border-radius:18px 18px 18px 4px;align-items:center;gap:5px;padding:10px 14px;display:inline-flex}.typing-indicator span{background:#9ca3af;border-radius:50%;width:7px;height:7px;animation:1.2s ease-in-out infinite typing-bounce}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typing-bounce{0%,60%,to{opacity:.5;transform:translateY(0)}30%{opacity:1;transform:translateY(-5px)}}.chat-messages--status{color:#6b7280;text-align:center;justify-content:center;align-items:center;gap:12px;font-family:Roboto,sans-serif;font-size:14px}.login-page{width:100%;height:100vh;font-family:system-ui,Segoe UI,Roboto,sans-serif;position:relative;overflow:hidden}.login-page--center{background:#f9fafb;justify-content:center;align-items:center;display:flex}.login-page__bg{object-fit:cover;object-position:center;z-index:0;width:100%;height:100%;position:absolute;inset:0}.login-page__main{z-index:5;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}@keyframes login-spin{to{transform:rotate(360deg)}}.login-page__spinner{border:3px solid #d1d5db;border-top-color:#353535;border-radius:50%;width:36px;height:36px;animation:.8s linear infinite login-spin}.login-page__error{color:#6b7280;font-size:14px}.auth-callback{background:#f9fafb;justify-content:center;align-items:center;width:100%;height:100vh;font-family:system-ui,Segoe UI,Roboto,sans-serif;display:flex}@keyframes auth-callback-spin{to{transform:rotate(360deg)}}.auth-callback__spinner{border:3px solid #d1d5db;border-top-color:#353535;border-radius:50%;width:36px;height:36px;animation:.8s linear infinite auth-callback-spin}.chat-page{flex-direction:column;flex:1;height:100%;display:flex}.chat-page__title{text-align:center;color:#111;margin:24px 0 0;padding:0;font-family:Montserrat,sans-serif;font-size:17px;font-weight:700}.chat-page__content{flex-direction:column;flex:1;justify-content:center;align-items:center;padding:0 24px 80px;display:flex}.chat-page__welcome{text-align:center;margin-bottom:24px}.chat-page__greeting{color:#111;margin:0 0 4px;font-family:Montserrat,sans-serif;font-size:26px;font-weight:700}.chat-page__question{color:#111;margin:0 0 16px;font-family:Montserrat,sans-serif;font-size:22px;font-weight:700}.chat-page__description{color:#6b7280;max-width:480px;margin:0;font-family:Roboto,sans-serif;font-size:14px;line-height:1.55}.chat-page__input-row{align-items:center;gap:10px;width:100%;max-width:560px;margin-bottom:16px;display:flex}.chat-page__send-btn{border-radius:50%;flex-shrink:0;width:48px;height:48px;padding:0}.chat-page__send-btn:not(:disabled){cursor:pointer}.chat-page__send-btn:disabled,.chat-page__send-btn:disabled:hover{cursor:not-allowed;opacity:.7;background:#d1d5db;border-color:#d1d5db}.chat-page__suggestions{flex-direction:column;gap:1px;width:100%;max-width:560px;margin:0;padding:0;list-style:none;display:flex}.chat-page__suggestions .btn{grid-template-columns:20px 1fr;align-items:start;column-gap:6px;width:100%;padding:4px 0;display:grid}.chat-page__suggestions .btn__icon{justify-content:center;align-items:center;width:20px;height:1.5em;margin:0;padding:0;display:flex}.chat-page__suggestions .btn__label{text-align:left;min-width:0;margin:0;line-height:1.5}