:root{--navy:#0a1628;--navy-light:#14243f;--gold:#c9a84c;--gold-soft:#c9a84c26;--text:#1c2333;--text-muted:#6b7280;--bg:#f7f6f2;--surface:#fff;--border:#e5e4e7;--heading:"Cormorant Garamond", Georgia, serif;--sans:"DM Sans", system-ui, "Segoe UI", Roboto, sans-serif;font:16px/145% var(--sans);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: 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var(--border);z-index:10;border-radius:8px;flex-direction:column;min-width:120px;padding:4px;display:flex;position:absolute;top:100%;right:0;box-shadow:0 8px 20px #00000040}.conversation-menu button{text-align:left;cursor:pointer;color:var(--text);background:0 0;border:none;border-radius:6px;padding:8px 10px;font-size:13px}.conversation-menu button:hover{background:var(--bg)}.conversation-menu button.danger{color:#b91c1c}.empty-hint{color:#ffffff80;padding:8px 10px;font-size:13px;line-height:1.5}.sidebar-footer{border-top:1px solid #ffffff26;justify-content:space-between;align-items:center;padding-top:14px;font-size:13px;display:flex}.user-email{color:#ffffffb3;text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.link-btn{color:var(--gold);cursor:pointer;background:0 0;border:none;padding:0;font-size:13px}.chat-window{background:var(--bg);flex-direction:column;flex:1;display:flex}.message-list{flex-direction:column;flex:1;gap:14px;width:100%;max-width:760px;margin:0 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var(--border);white-space:nowrap;z-index:5;border-radius:8px;flex-direction:column;gap:4px;padding:8px;font-size:12px;display:flex;position:absolute;bottom:100%;left:0;box-shadow:0 6px 16px #0000001f}.citations-popover a{color:var(--navy)}.attachment-image{border-radius:10px;max-width:340px;margin-top:10px;display:block}.attachment-chart{background:#fff;border-radius:8px;max-width:420px;margin-top:10px;padding:12px}.attachment-download{background:var(--navy);color:#fff;border-radius:8px;margin-top:10px;padding:8px 14px;font-size:13px;text-decoration:none;display:inline-block}.profile-email{color:var(--text-muted);margin-bottom:8px;font-size:13px}.usage-stats{flex-direction:column;gap:10px;display:flex}.usage-row{background:var(--bg);border-radius:8px;justify-content:space-between;padding:10px 12px;font-size:14px;display:flex}.quota-banner{background:var(--gold-soft);border:1px solid var(--gold);width:calc(100% - 32px);max-width:760px;color:var(--text);border-radius:8px;margin:0 auto 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