:root{color:#25313a;background:#f6f8f4;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;font-weight:400;line-height:1.5}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:linear-gradient(180deg,rgba(47,125,109,.08),transparent 320px),#f6f8f4}button,input,textarea{font:inherit}button{cursor:pointer}.home-page,.login-page,.public-chat-page{min-height:100vh;padding:24px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:1120px;margin:0 auto}.topbar-actions,.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.brand-button,.secondary-button,.primary-button,.logout-button,.nav-item,.sidebar-add-button,.sidebar-channel-button,.channel-button,.visitor-button{display:inline-flex;align-items:center;gap:10px;border:0}.brand-button{min-height:44px;padding:0;color:#173b3f;background:transparent;font-size:1.05rem;font-weight:800}.secondary-button,.primary-button{min-height:44px;padding:0 16px;border-radius:8px;font-weight:750}.secondary-button{border:1px solid #cad7d2;color:#25313a;background:#fff}.primary-button{border:1px solid #173b3f;color:#fff;background:#173b3f;box-shadow:0 10px 24px #173b3f2e}.primary-button:hover,.primary-icon-button:hover{background:#21595e}.primary-button:disabled,.secondary-button:disabled{cursor:not-allowed;opacity:.55;box-shadow:none}.home-hero,.login-panel,.public-empty-state{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;max-width:760px;min-height:calc(100vh - 116px);margin:0 auto}.home-hero{min-height:58vh}.home-hero h1,.login-panel h1,.public-empty-state h1,.section-heading h1{margin:0;color:#14292f;font-size:clamp(2.25rem,7vw,4.5rem);line-height:1}.home-hero p,.login-panel p,.public-empty-state p{max-width:640px;margin:18px 0 28px;color:#56646a;font-size:1.12rem}.eyebrow{margin:0 0 8px;color:#c1543f;font-size:.78rem;font-weight:850;letter-spacing:0;text-transform:uppercase}.login-panel{max-width:560px}.login-panel h1{font-size:clamp(2.2rem,8vw,4rem)}.landing-chat-section{display:grid;grid-template-columns:minmax(240px,.9fr) minmax(360px,1.1fr);gap:18px;max-width:1120px;margin:0 auto 24px;align-items:stretch}.landing-copy{display:flex;flex-direction:column;justify-content:center;min-width:0}.landing-copy h2{margin:0;color:#14292f;font-size:clamp(1.8rem,4vw,3rem);line-height:1.05}.landing-copy p{max-width:520px;margin:14px 0 0;color:#56646a;font-size:1rem}.landing-chat-preview{display:flex;flex-direction:column;min-height:430px;overflow:hidden;border:1px solid #d7e0db;border-radius:8px;background:#fff}.landing-message-list{min-height:260px}.auth-form{display:grid;gap:14px;width:min(100%,520px)}.auth-form label{display:grid;gap:8px}.auth-form label span{color:#3d494f;font-weight:800}.auth-form input{width:100%;min-height:46px;border:1px solid #cfdcd6;border-radius:8px;padding:0 12px;color:#25313a;background:#fff}.workspace-preview{display:inline-flex;align-items:center;min-width:0;gap:8px;border:1px solid #dbe6e0;border-radius:8px;padding:10px 12px;color:#31534e;background:#f7faf7;font-weight:800}.workspace-preview span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.form-status{margin:0;color:#c1543f;font-size:.9rem;font-weight:750}.public-chat-shell{display:flex;justify-content:center;max-width:920px;min-height:calc(100vh - 116px);margin:0 auto;padding:32px 0}.public-chat-panel{display:flex;flex-direction:column;width:min(100%,760px);min-height:680px;border:1px solid #d7e0db;border-radius:8px;overflow:hidden;background:#fff}.public-chat-panel .message.visitor{align-self:flex-end;color:#fff;background:#173b3f}.public-chat-panel .message.bot{align-self:flex-start}.primary-icon-button:disabled{cursor:not-allowed;opacity:.45}.icon-button:disabled{cursor:not-allowed;opacity:.45}.app-shell{display:grid;grid-template-columns:auto 1fr;min-height:100vh;background:#eef3ef}.sidebar{display:flex;flex-direction:column;width:276px;min-height:100vh;padding:16px;color:#f4f7f3;background:#173b3f;transition:width .18s ease}.sidebar.collapsed{width:76px}.sidebar-top{display:grid;grid-template-columns:40px 1fr 40px;align-items:center;gap:8px;min-height:44px}.sidebar.collapsed .sidebar-top{grid-template-columns:40px}.sidebar-top strong{overflow:hidden;font-size:1rem;white-space:nowrap}.icon-button,.primary-icon-button{display:inline-grid;place-items:center;width:40px;height:40px;border:0;border-radius:8px}.icon-button{color:inherit;background:#ffffff14}.icon-button.light{color:#2d3a41;background:#edf3ef}.icon-button.edge{justify-self:end}.primary-icon-button{color:#fff;background:#173b3f}.sidebar-nav{display:grid;gap:8px;margin-top:28px}.conversation-nav-section{display:grid;gap:8px}.conversation-nav-row{display:grid;grid-template-columns:1fr 40px;gap:8px}.sidebar.collapsed .conversation-nav-row{grid-template-columns:40px}.nav-item,.logout-button,.sidebar-add-button,.sidebar-channel-button{width:100%;min-height:44px;padding:0 12px;border-radius:8px;color:#dce9e2;background:transparent;text-align:left}.sidebar-add-button{justify-content:center;padding:0}.sidebar-channel-list{display:grid;gap:6px;padding:0 0 0 22px}.sidebar-channel-button{min-height:38px;color:#cbdcd5;background:#ffffff0f;font-size:.9rem}.sidebar-channel-button.active,.sidebar-channel-button:hover,.sidebar-add-button:hover{color:#fff;background:#ffffff24}.sidebar-channel-button span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar.collapsed .nav-item,.sidebar.collapsed .logout-button,.sidebar.collapsed .sidebar-add-button,.sidebar.collapsed .sidebar-channel-button{justify-content:center;padding:0}.nav-item.active,.nav-item:hover,.logout-button:hover{color:#fff;background:#ffffff1f}.logout-button{margin-top:auto}.workspace{min-width:0;padding:28px}.section-heading{margin-bottom:20px}.section-heading-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}.section-heading-row .section-heading{margin-bottom:0}.section-heading h1{font-size:clamp(2rem,4vw,3.25rem)}.conversation-layout,.profile-layout{max-width:1440px;margin:0 auto}.conversation-grid{display:grid;grid-template-columns:minmax(240px,300px) minmax(360px,1fr);gap:16px;min-height:680px}.settings-window{display:grid;grid-template-columns:minmax(420px,760px);gap:16px;min-height:680px}.channel-panel,.visitor-panel,.chat-panel,.channel-settings-panel,.form-panel{min-width:0;border:1px solid #d7e0db;border-radius:8px;background:#fff}.channel-panel,.visitor-panel,.chat-panel,.channel-settings-panel{display:flex;flex-direction:column;min-height:0}.panel-heading,.chat-header,.settings-header{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:64px;padding:14px;border-bottom:1px solid #e3ebe7}.panel-heading h2,.chat-header h2,.settings-header h2{margin:0;color:#1e2b31;font-size:1rem}.settings-stack{display:grid;gap:16px;padding:16px}.channel-list,.visitor-list{display:grid;gap:8px;padding:12px}.channel-button,.visitor-button{width:100%;border-radius:8px;color:#2d3a41;background:#f7faf7}.channel-button{min-height:44px;padding:0 12px;text-align:left}.channel-button.active,.visitor-button.active{outline:2px solid #2f7d6d;background:#eaf5f0}.share-box{display:grid;gap:10px;margin:4px 12px 12px;padding:12px;border-radius:8px;background:#fff7f2}.share-box.expanded{margin:0}.share-box p{margin:0;color:#6f5a52;font-size:.82rem;font-weight:750}.share-box strong{color:#2b2f33}.share-link{display:grid;grid-template-columns:18px 1fr 40px;align-items:center;gap:8px;min-width:0}.share-link span{overflow:hidden;color:#56646a;font-size:.85rem;text-overflow:ellipsis;white-space:nowrap}.prompt-editor{display:grid;gap:8px;margin:auto 12px 12px}.knowledge-editor{display:grid;gap:10px}.date-editor{display:grid;gap:8px}.date-editor span{color:#3b464c;font-size:.88rem;font-weight:800}.date-editor input{width:min(100%,240px);min-height:44px;border:1px solid #cfdcd6;border-radius:8px;padding:0 12px;color:#25313a;background:#fff}.prompt-editor.expanded{margin:0}.prompt-editor span,.knowledge-heading>span{display:flex;align-items:center;gap:8px;color:#3b464c;font-size:.88rem;font-weight:800}.prompt-editor textarea,.knowledge-editor textarea{width:100%;min-height:150px;resize:vertical;border:1px solid #d7e0db;border-radius:8px;padding:10px;color:#25313a;background:#fbfdfb}.prompt-editor.expanded textarea{min-height:260px}.knowledge-editor.expanded textarea{min-height:190px}.knowledge-heading,.knowledge-actions{display:flex;align-items:center;justify-content:space-between;gap:12px}.audit-trace{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.audit-trace div{display:grid;gap:2px;min-width:0;border:1px solid #dbe6e0;border-radius:8px;padding:10px;background:#f7faf7}.audit-trace strong{color:#173b3f;font-size:1.1rem;line-height:1}.audit-trace span,.pending-source-list span{overflow:hidden;color:#657278;font-size:.78rem;font-weight:800;text-overflow:ellipsis;white-space:nowrap}.pending-source-list{display:flex;flex-wrap:wrap;gap:6px}.pending-source-list span{max-width:180px;border-radius:999px;padding:5px 9px;color:#31534e;background:#eaf5f0}.checkbox-row{display:inline-flex;align-items:center;gap:8px;color:#344148;font-size:.88rem;font-weight:800}.checkbox-row input{width:18px;height:18px;accent-color:#2f7d6d}.audit-status,.knowledge-status{margin:0;color:#657278;font-size:.86rem}.knowledge-status{color:#285f54;font-weight:750}.visitor-button{display:grid;grid-template-columns:1fr;gap:6px;min-height:72px;padding:10px;text-align:left}.visitor-button div{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.visitor-button strong,.visitor-button span,.visitor-button small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.visitor-button span,.visitor-button small{color:#6b777c}.status-pill{flex:0 0 auto;max-width:150px;overflow:hidden;border-radius:999px;padding:6px 10px;color:#195044;background:#dff2ea;font-size:.78rem;font-weight:800;text-overflow:ellipsis;white-space:nowrap}.chat-actions{display:flex;align-items:center;gap:8px}.empty-panel{border:1px dashed #cad7d2;border-radius:8px;padding:14px;color:#647176;background:#fbfdfb;font-size:.92rem}.message-list{display:flex;flex:1;flex-direction:column;gap:12px;min-height:0;padding:16px;overflow:auto;background:linear-gradient(180deg,rgba(223,242,234,.55),transparent 180px),#fbfcfa}.message{max-width:min(72%,680px);border-radius:8px;padding:10px 12px;background:#fff;box-shadow:0 4px 14px #182d3014}.message.visitor{align-self:flex-start}.message.bot{align-self:flex-start;border-left:4px solid #2f7d6d}.message.owner{align-self:flex-end;color:#fff;background:#173b3f}.message span{display:block;margin-bottom:4px;color:inherit;font-size:.76rem;font-weight:850;opacity:.72}.message p{margin:0}.reply-box{display:grid;grid-template-columns:1fr 44px;gap:10px;padding:14px;border-top:1px solid #e3ebe7;background:#fff}.reply-box input,.form-panel input{width:100%;min-width:0;min-height:44px;border:1px solid #cfdcd6;border-radius:8px;padding:0 12px;color:#25313a;background:#fff}.form-panel{display:grid;gap:16px;max-width:560px;padding:18px}.form-panel label{display:grid;gap:8px}.form-panel span{color:#3d494f;font-weight:800}@media(max-width:1180px){.conversation-grid{grid-template-columns:minmax(220px,280px) minmax(360px,1fr)}.settings-window{grid-template-columns:minmax(360px,760px)}.visitor-panel{grid-column:1}.chat-panel{grid-column:2}}@media(max-width:820px){.landing-chat-section{grid-template-columns:1fr}.landing-chat-preview{min-height:390px}.app-shell{grid-template-columns:1fr}.sidebar,.sidebar.collapsed{position:sticky;top:0;z-index:2;width:100%;min-height:auto;border-bottom:1px solid rgba(255,255,255,.12)}.sidebar.collapsed .sidebar-top,.sidebar-top{grid-template-columns:40px 1fr 40px}.sidebar.collapsed .sidebar-top strong{display:block}.sidebar-nav{grid-template-columns:1fr;margin-top:14px}.sidebar-channel-list{grid-template-columns:repeat(auto-fit,minmax(130px,1fr));padding-left:0}.sidebar.collapsed .nav-item,.sidebar.collapsed .logout-button,.sidebar.collapsed .sidebar-add-button,.sidebar.collapsed .sidebar-channel-button{justify-content:flex-start;padding:0 12px}.logout-button{margin-top:14px}.workspace{padding:18px}.section-heading-row{align-items:flex-start;flex-direction:column}.conversation-grid,.settings-window{grid-template-columns:1fr;min-height:auto}.visitor-panel,.chat-panel{grid-column:auto;grid-row:auto}.chat-panel{min-height:620px}.message{max-width:90%}.knowledge-heading,.knowledge-actions{align-items:flex-start;flex-direction:column}}@media(max-width:560px){.home-page,.login-page,.public-chat-page{padding:16px}.topbar{align-items:stretch;flex-direction:column}.topbar-actions,.hero-actions{width:100%}.topbar-actions .secondary-button,.topbar-actions .primary-button,.hero-actions .secondary-button,.hero-actions .primary-button{flex:1 1 150px;justify-content:center}.home-hero,.login-panel,.public-empty-state{min-height:calc(100vh - 92px)}.public-chat-shell{min-height:calc(100vh - 92px);padding:18px 0 0}.public-chat-panel{min-height:calc(100vh - 110px)}.sidebar-top strong,.sidebar.collapsed .sidebar-top strong{display:none}.sidebar.collapsed .sidebar-top,.sidebar-top{grid-template-columns:40px 1fr 40px}.nav-item span,.logout-button span{display:none}.nav-item,.logout-button,.sidebar-add-button,.sidebar-channel-button,.sidebar.collapsed .nav-item,.sidebar.collapsed .logout-button,.sidebar.collapsed .sidebar-add-button,.sidebar.collapsed .sidebar-channel-button{justify-content:center}.share-link{grid-template-columns:18px minmax(0,1fr) 40px}}