html{--vaadin-app-layout-drawer-width: 280px;--chat-max-width: 900px}html{--lumo-base-color: #0F172A;--lumo-body-text-color: #E2E8F0;--lumo-secondary-text-color: #94A3B8;--lumo-tertiary-text-color: #64748B;--lumo-contrast-5pct: #162032;--lumo-contrast-10pct: #1E293B;--lumo-contrast-20pct: #334155;--lumo-contrast-30pct: #475569;--lumo-contrast-40pct: #5A6E8A;--lumo-contrast-50pct: #7488A6;--lumo-contrast-60pct: #8FA0BA;--lumo-contrast-70pct: #A8B7CC;--lumo-contrast-80pct: #C2D0E0;--lumo-contrast-90pct: #D9E2EF;--lumo-primary-color: hsl(263, 78%, 68%);--lumo-primary-color-10pct: hsla(263, 78%, 68%, .12);--lumo-primary-color-20pct: hsla(263, 78%, 68%, .2);--lumo-primary-color-50pct: hsla(263, 78%, 68%, .45);--lumo-primary-text-color: hsl(263, 78%, 70%);--lumo-primary-contrast-color: #FFFFFF;--lumo-error-color: hsl(0, 72%, 62%);--lumo-error-color-10pct: hsla(0, 72%, 62%, .14);--lumo-success-color: hsl(145, 65%, 44%);--lumo-border-radius-m: 12px;--lumo-border-radius-l: 16px;--lumo-border-radius-s: 8px;--lumo-font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;--lumo-box-shadow-s: 0 2px 10px hsla(222, 47%, 7%, .4);--lumo-box-shadow-m: 0 6px 20px hsla(222, 47%, 7%, .5);color-scheme:dark;background:var(--lumo-base-color)}html[theme~=light]{--lumo-base-color: #FFFFFF !important;--lumo-body-text-color: #1A202C !important;--lumo-secondary-text-color: #5A6B88 !important;--lumo-tertiary-text-color: #7A8AA6 !important;--lumo-contrast-5pct: #F1F5F9 !important;--lumo-contrast-10pct: #E2E8F0 !important;--lumo-contrast-20pct: #CBD5E1 !important;--lumo-contrast-30pct: #94A3B8 !important;--lumo-contrast-40pct: #64748B !important;--lumo-contrast-50pct: #475569 !important;--lumo-primary-color: #0F172A !important;--lumo-primary-color-10pct: rgba(15, 23, 42, .08) !important;--lumo-primary-color-20pct: rgba(15, 23, 42, .14) !important;--lumo-primary-color-50pct: rgba(15, 23, 42, .5) !important;--lumo-primary-text-color: #0F172A !important;--lumo-primary-contrast-color: #FFFFFF !important;--lumo-box-shadow-s: 0 2px 8px hsla(0, 0%, 0%, .08) !important;--lumo-box-shadow-m: 0 4px 16px hsla(0, 0%, 0%, .12) !important;color-scheme:light;background:var(--lumo-base-color)}html[theme~=light] .chat-view{background:#f8fafc!important}html[theme~=light] vaadin-app-layout::part(drawer){background:#fff!important}html[theme~=light] .chat-view__messages-container{background:#f8fafc!important}.session-sidebar.sidebar-collapsed{display:none}@media(max-width:768px){.session-sidebar{display:none}.session-sidebar.sidebar-collapsed{display:flex}}.sidebar-toggle-btn vaadin-icon{transition:transform .2s}.lucide-icon{display:inline-flex;align-items:center;justify-content:center;align-self:center;vertical-align:middle;line-height:0}.lucide-icon svg{display:block;vertical-align:middle}vaadin-button .lucide-icon,vaadin-side-nav-item .lucide-icon{align-self:center;vertical-align:middle}.login-view{background:var(--lumo-contrast-5pct)}.login-card{max-width:420px;margin:0 auto;background:var(--lumo-contrast-5pct);border:1px solid var(--lumo-contrast-10pct);border-radius:var(--lumo-border-radius-l);box-shadow:var(--lumo-box-shadow-s);padding:var(--lumo-space-l);gap:var(--lumo-space-m);align-items:center}html[theme~=light] .login-card{background:var(--lumo-base-color);border-color:var(--lumo-contrast-10pct)}.login-card h1{letter-spacing:-.02em}.login-button{font-weight:500!important;letter-spacing:.01em;border-radius:var(--lumo-border-radius-m);margin-top:var(--lumo-space-s)}.login-button::part(label){font-weight:500}.login-info{margin-top:var(--lumo-space-m);padding-top:var(--lumo-space-m);border-top:1px solid var(--lumo-contrast-10pct);width:100%;line-height:1.5;opacity:.8}.side-nav{padding:8px 0;width:100%;--vaadin-side-nav-child-indent: 0}.app-drawer{padding:var(--lumo-space-s);gap:var(--lumo-space-s)}.view-title{font-size:var(--lumo-font-size-m)!important;line-height:1.3;font-weight:500}.logout-button{color:var(--lumo-secondary-text-color);margin-left:auto}.user-footer{margin-top:var(--lumo-space-s);padding-top:var(--lumo-space-s);border-top:1px solid var(--lumo-contrast-10pct);width:100%}.user-name{font-size:var(--lumo-font-size-xs);font-weight:600;line-height:1.3;word-break:normal;white-space:normal;overflow:visible;text-overflow:clip;min-width:0;flex:1 1 0;display:block}.user-footer{flex-wrap:nowrap;align-items:center}.user-footer .user-name{min-width:0}.dark-toggle{margin-left:auto}.chat-session-item .chat-session-delete-btn{opacity:0;visibility:hidden;pointer-events:none;transition:opacity .15s ease,visibility .15s ease;color:var(--lumo-tertiary-text-color);--lumo-button-size: var(--lumo-size-s);margin:0}vaadin-side-nav-item.chat-session-item:hover .chat-session-delete-btn,vaadin-side-nav-item.chat-session-item:focus-within .chat-session-delete-btn{opacity:1;visibility:visible;pointer-events:auto}.chat-session-delete-btn:hover{color:var(--lumo-error-color)!important;background:var(--lumo-error-color-10pct)!important}.chat-session-delete-btn::part(label){padding:0}.side-nav-group-header{font-size:var(--lumo-font-size-xs);font-weight:700;letter-spacing:normal;text-transform:none;color:var(--lumo-secondary-text-color);margin:var(--lumo-space-s) 0 calc(var(--lumo-space-xs) / 2) var(--lumo-space-xs);padding:0;line-height:1.2}.side-nav-container{gap:0}vaadin-side-nav-item.chat-session-item,vaadin-side-nav-item.chat-session-item::part(item){font-size:var(--lumo-font-size-s);font-weight:500;text-transform:none;letter-spacing:normal}vaadin-side-nav-item.chat-session-item{margin-block:var(--lumo-space-xs)}vaadin-side-nav-item.chat-session-item::part(content){border-radius:var(--lumo-border-radius-s)}vaadin-side-nav-item.chat-session-item::part(content):hover{background:var(--lumo-contrast-5pct)!important;border-radius:var(--lumo-border-radius-s)}vaadin-side-nav-item.chat-session-item[current]::part(content),vaadin-side-nav-item.chat-session-item[current]:hover::part(content){background:var(--lumo-primary-color-10pct)!important;color:var(--lumo-primary-text-color)!important;border-radius:var(--lumo-border-radius-s)}vaadin-side-nav-item::part(link),vaadin-side-nav-item::part(content){padding-block:var(--lumo-space-xs)}.chat-view{background:var(--lumo-contrast-5pct);padding:0;overflow:hidden}.chat-view__wrapper{max-width:none;margin:0;background:transparent;overflow:hidden;height:100%;width:100%}.chat-view__wrapper--empty{justify-content:center;align-items:center}.chat-view__wrapper--chat{justify-content:flex-start;align-items:center}.chat-view__messages-container{background:transparent;overflow-y:auto;overflow-x:hidden;width:100%;height:100%;box-sizing:border-box}.chat-view__centered-messages{max-width:var(--chat-max-width);margin:0 auto;width:100%;box-sizing:border-box;min-width:0}.chat-view__message-list{--vaadin-message-list-item-max-width: 75%;padding:16px;width:100%;max-width:100%;box-sizing:border-box;overflow-wrap:anywhere;word-break:break-word;overflow-x:hidden}.chat-view__welcome-title{color:var(--lumo-secondary-text-color);font-weight:400;font-size:var(--lumo-font-size-xl);letter-spacing:-.02em;margin:0 0 20px;text-align:center;width:100%}.chat-view__input{width:100%;background:var(--lumo-contrast-5pct)!important;border:1px solid var(--lumo-contrast-10pct)!important;border-radius:var(--lumo-border-radius-l)!important;box-shadow:var(--lumo-box-shadow-m)!important;padding:8px 12px!important;gap:8px!important;align-items:center!important}html[theme~=light] .chat-view__input{background:var(--lumo-base-color)!important;border-color:var(--lumo-contrast-10pct)!important;box-shadow:var(--lumo-box-shadow-s)!important}.chat-view__input-wrapper{max-width:var(--chat-max-width);margin:0 auto;background:transparent;padding:8px 12px 12px;width:100%}.chat-view__input-field{--vaadin-input-field-border-width: 0;min-height:44px;max-height:120px}.chat-view__input-field::part(input-field){background:transparent;border:none;box-shadow:none;max-height:120px;overflow-y:auto}.chat-view__send-button{border-radius:50%!important;min-width:36px!important;min-height:36px!important;width:36px!important;height:36px!important;padding:0!important;flex-shrink:0;display:inline-flex!important;align-items:center!important;justify-content:center!important;line-height:0!important}.chat-view__send-button::part(label){display:flex!important;align-items:center!important;justify-content:center!important;padding:0!important;line-height:0!important}.chat-view__send-button .lucide-icon{display:flex!important;align-items:center!important;justify-content:center!important;margin:0!important;line-height:0!important}.chat-view__send-button .lucide-icon svg{display:block!important;margin:0 auto!important}.chat-view__message-list pre{max-width:100%;box-sizing:border-box}.chat-view__message-list ul,.chat-view__message-list ol{padding-left:20px;margin:6px 0}.chat-view__messages-container::-webkit-scrollbar{width:6px}.chat-view__messages-container::-webkit-scrollbar-thumb{background:var(--lumo-contrast-20pct);border-radius:3px}.chat-view__messages-container::-webkit-scrollbar-thumb:hover{background:var(--lumo-contrast-30pct)}*{scrollbar-width:thin;scrollbar-color:var(--lumo-contrast-20pct) transparent}