:root{color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f4f2ec;color:#18231f;--ink: #18231f;--muted: #5d655f;--line: #d8d2c5;--paper: #fffdf7;--client: #e9f6ed;--manager: #eef1f4;--accent: #0b7a53;--accent-strong: #075f43;--blue: #285d85;--amber: #9a651b;--danger: #9b2d28}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,input,textarea{font:inherit}button{min-height:40px;border:1px solid #bfc8be;border-radius:8px;background:#fffdf7;color:var(--ink);display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:8px 12px;cursor:pointer;transition:background .15s ease,border-color .15s ease,transform .15s ease;white-space:nowrap}button:hover:not(:disabled){border-color:var(--accent);background:#f4fbf5;transform:translateY(-1px)}button:disabled{cursor:wait;opacity:.55}.app-shell{min-height:100vh;display:flex;flex-direction:column;gap:16px;padding:18px}.auth-shell{min-height:100vh;display:grid;place-items:center;padding:20px}.auth-panel{width:min(440px,100%);background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:20px}.auth-title{display:flex;gap:12px;align-items:center;margin-bottom:18px}.auth-title svg{color:var(--accent)}.auth-title h1{margin:0;font-size:22px}.auth-title p{margin:4px 0 0;color:var(--muted)}.auth-form,.admin-form,.new-session-form{display:grid;gap:10px}.auth-form label,.new-session-form label{display:grid;gap:6px;color:var(--muted);font-size:13px;font-weight:700}.auth-form input,.admin-form input,.new-session-form input,.new-session-form textarea{min-height:40px;border:1px solid #bfc8be;border-radius:8px;background:#fffdf7;color:var(--ink);padding:8px 10px}.new-session-form textarea{min-height:150px;resize:vertical;line-height:1.45}.form-error{border:1px solid #e2a9a4;border-radius:8px;background:#fff0ee;color:var(--danger);padding:8px 10px;font-size:13px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:20;display:grid;place-items:center;background:#18231f6b;padding:18px}.new-session-modal{width:min(760px,100%);max-height:min(760px,calc(100vh - 36px));display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:8px;overflow:auto}.modal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:18px;border-bottom:1px solid var(--line)}.modal-header h2{margin:0;font-size:20px}.modal-header p{margin:5px 0 0;color:var(--muted)}.new-session-form{padding:18px}.form-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(180px,.6fr);gap:10px}.file-drop{min-height:48px;display:flex!important;grid-template-columns:auto 1fr;align-items:center;gap:10px;border:1px dashed #bfc8be;border-radius:8px;background:#faf7ef;padding:12px;cursor:pointer}.file-drop input{display:none}.file-drop span{color:var(--ink);overflow-wrap:anywhere}.modal-actions{display:flex;justify-content:flex-end;gap:10px}.user-strip{min-height:42px;display:flex;align-items:center;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line);padding-bottom:12px}.active-session-label{min-width:0;display:flex;align-items:baseline;gap:8px;margin-right:auto}.active-session-label strong{color:var(--ink);overflow-wrap:anywhere}.active-session-label span{color:var(--muted)}.user-strip span,.user-strip strong{font-size:13px}.user-strip strong{color:var(--accent-strong)}.topbar{display:flex;align-items:center;border-bottom:1px solid var(--line);padding-bottom:16px}.brand{display:flex;gap:12px;align-items:center}.brand-mark{width:42px;height:42px;display:grid;place-items:center;border-radius:8px;color:#fff;background:var(--accent);flex:0 0 auto}.brand-mark svg{color:#fff;flex:0 0 auto}.brand h1,.panel-header h2,.sources h3{margin:0;letter-spacing:0}.brand h1{font-size:24px;line-height:1.15}.brand p{margin:3px 0 0;color:var(--muted);font-size:14px}.control-group{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.chat-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:16px;align-items:start;min-height:620px}.session-sidebar{min-height:620px;max-height:calc(100vh - 122px);display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:8px;overflow:hidden}.session-sidebar-header{min-height:58px;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px;border-bottom:1px solid var(--line)}.session-sidebar-header h2{margin:0;font-size:17px}.session-list{display:flex;flex-direction:column;gap:8px;overflow:auto;padding:10px}.session-empty{color:var(--muted);border:1px dashed #cfc8ba;border-radius:8px;background:#faf7ef;padding:14px;text-align:center}.session-item{width:100%;min-height:92px;display:grid;grid-template-columns:minmax(0,1fr) 40px;gap:6px;background:#fffaf2;border:1px solid #bfc8be;border-radius:8px;padding:0}.session-select{width:100%;min-height:90px;display:grid;align-content:start;justify-items:start;gap:6px;text-align:left;white-space:normal;border:0;background:transparent}.session-select:hover:not(:disabled),.session-delete:hover:not(:disabled){transform:none}.session-item-active{border-color:var(--accent);background:#eef9f0}.session-item strong{width:100%;font-size:14px;overflow-wrap:anywhere}.session-item span{width:100%;color:var(--muted);font-size:13px;overflow-wrap:anywhere}.session-item small{display:inline-flex;align-items:center;gap:5px;color:var(--blue);font-size:12px}.session-delete{width:34px;min-height:34px;align-self:start;margin:8px 8px 0 0;padding:0;color:var(--danger);border-color:#ead0cc;background:#fff7f6}.chat-main{min-width:0;display:grid;gap:16px}.session-start{min-height:420px;display:grid;place-items:center;align-content:center;gap:12px;text-align:center;background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:28px}.session-start h2{margin:0;font-size:22px}.session-start p{max-width:560px;margin:0;color:var(--muted)}.workspace{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.9fr);gap:16px;min-height:470px}.panel,.knowledge-band,.controls-band{background:var(--paper);border:1px solid var(--line);border-radius:8px}.panel{min-height:0;display:flex;flex-direction:column}.panel-header{min-height:54px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line)}.panel-header h2{font-size:17px}.panel-header span{color:var(--muted);font-size:13px}.scroll-list{display:flex;flex-direction:column;gap:10px;overflow:auto;padding:14px}.empty-state{min-height:120px;display:grid;place-items:center;color:var(--muted);text-align:center;padding:18px;border:1px dashed #cfc8ba;border-radius:8px;background:#faf7ef}.utterance{border:1px solid #d6dbd3;border-radius:8px;padding:12px}.utterance-client{background:var(--client);border-left:4px solid var(--accent)}.utterance-manager{background:var(--manager);border-left:4px solid var(--blue)}.utterance-system{background:#fff3df;border-left:4px solid var(--amber)}.utterance-meta{display:flex;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:12px;margin-bottom:7px}.utterance-meta strong{color:var(--ink)}.utterance p,.source-tile p,.sources p,.say-block p,.details dd{margin:0;line-height:1.45}.suggestion-body{padding:16px;overflow:auto}.say-block{border-left:4px solid var(--accent);background:#ecf8ef;padding:14px;border-radius:8px;margin-bottom:14px}.say-block span,.details dt{display:block;color:var(--accent-strong);font-size:12px;text-transform:uppercase;margin-bottom:6px;font-weight:800}.say-block p{font-size:18px;font-weight:700}.details{display:grid;gap:12px;margin:0}.details div{border-bottom:1px solid #eee7d8;padding-bottom:12px}.details div:last-child{border-bottom:0}.details dd{color:#2f3d37}.sources{margin-top:12px;border-top:1px solid var(--line);padding-top:12px}.sources h3{font-size:14px;margin-bottom:8px}details{border:1px solid #ded8cb;border-radius:8px;padding:10px 12px;margin-bottom:8px;background:#fffaf0}summary{cursor:pointer;color:var(--blue);font-weight:700}details p{color:#3c4641;font-size:13px;margin-top:8px}.controls-band{display:flex;gap:12px;align-items:center;flex-wrap:wrap;padding:12px}.push-hint{min-height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid #d7c794;border-radius:8px;background:#fff6d8;color:#72500d;font-size:13px;font-weight:700;padding:8px 12px;text-align:center}.push-hint-active{border-color:#8fcda9;background:#dcf5e7;color:#0f5d43}.play-button{color:#fff;background:var(--accent);border-color:var(--accent-strong)}.play-button:hover:not(:disabled){color:#fff;background:var(--accent-strong)}.hidden-input{display:none}.knowledge-band{padding-bottom:14px}.admin-band{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding-bottom:14px}.admin-form{grid-template-columns:minmax(220px,1fr) minmax(180px,.7fr) auto;padding:14px}.admin-status{color:var(--muted);font-size:13px;padding:0 14px 10px}.admin-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.user-list{display:grid;gap:8px;padding:0 14px}.user-row{display:grid;grid-template-columns:minmax(180px,1fr) 90px auto;gap:10px;align-items:center;border:1px solid #ddd7cb;border-radius:8px;background:#fffaf2;padding:8px 10px}.user-row span{overflow-wrap:anywhere}.user-row strong{color:var(--blue);font-size:13px}.knowledge-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:14px}.source-tile{min-height:120px;border:1px solid #ddd7cb;border-radius:8px;padding:12px;background:#fffaf2;overflow:hidden}.source-tile strong{color:var(--blue)}.source-tile p{margin-top:8px;color:#414941;font-size:13px;display:-webkit-box;-webkit-line-clamp:6;-webkit-box-orient:vertical;overflow:hidden}@media(max-width:1120px){.topbar,.chat-layout,.workspace,.controls-band,.knowledge-grid,.admin-form,.form-grid,.user-row{grid-template-columns:1fr}.session-sidebar{min-height:auto;max-height:320px}.workspace{min-height:auto}}@media(max-width:640px){.app-shell{padding:12px}.brand h1{font-size:20px}.control-group,.modal-actions{display:grid;grid-template-columns:1fr}button{width:100%;white-space:normal}}
