:root{color:#17201a;background:#f6f4ef;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}.appShell{display:grid;grid-template-columns:280px minmax(0,1fr);min-height:100vh}.sidebar{border-right:1px solid #d8d3c7;background:#eeebe4;padding:18px}.newChatButton,.sendButton,.chatListItem,.iconButton{align-items:center;border:0;cursor:pointer;display:inline-flex;gap:8px}.newChatButton{background:#1f7a5a;border-radius:8px;color:#fff;justify-content:center;min-height:44px;width:100%}.chatList{display:grid;gap:8px;margin-top:18px}.chatListItem{background:transparent;border-radius:8px;color:#344039;min-height:40px;overflow:hidden;padding:0 10px;text-align:left;width:100%}.chatListItem span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chatListItem.active,.chatListItem:hover{background:#fffaf0}.chatPanel{display:grid;grid-template-rows:auto auto 1fr auto auto;min-height:100vh}.topBar{align-items:center;border-bottom:1px solid #d8d3c7;display:flex;gap:20px;justify-content:space-between;padding:18px 24px}.topBar h1{font-size:22px;letter-spacing:0;line-height:1.2;margin:0}.topBar p{color:#6e766f;margin:4px 0 0}.fileStatus{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}.fileStatus span{align-items:center;background:#e5dfd2;border-radius:8px;color:#626a64;display:inline-flex;gap:6px;max-width:240px;min-height:32px;overflow:hidden;padding:0 10px;text-overflow:ellipsis;white-space:nowrap}.fileStatus .ready{background:#dff1e9;color:#176a4e}.imagePreview{border-bottom:1px solid #d8d3c7;padding:12px 24px}.imagePreview img{border-radius:8px;display:block;height:96px;object-fit:cover;width:128px}.messages{display:flex;flex-direction:column;gap:12px;overflow-y:auto;padding:24px}.emptyState{align-self:center;color:#6d756e;margin-top:20vh}.message{display:flex}.message.user{justify-content:flex-end}.message.bot{justify-content:flex-start}.bubble{border-radius:8px;line-height:1.5;max-width:min(760px,78%);overflow-wrap:anywhere;padding:12px 14px;white-space:pre-wrap}.message.user .bubble{background:#1f7a5a;color:#fff}.message.bot .bubble{background:#fff;border:1px solid #ded8ca}.loadingBubble{align-items:center;display:inline-flex;gap:8px}.errorBanner{background:#fff0ed;border-top:1px solid #ffc4b8;color:#8d2d1d;padding:10px 24px}.composer{align-items:center;border-top:1px solid #d8d3c7;display:grid;gap:10px;grid-template-columns:44px 44px minmax(0,1fr) auto;padding:14px 18px}.composer input[type=text],.composer>input:not([type]){background:#fff;border:1px solid #cfc8ba;border-radius:8px;min-height:44px;outline:none;padding:0 12px;width:100%}.composer input:focus{border-color:#1f7a5a}.iconButton{background:#fff;border:1px solid #cfc8ba;border-radius:8px;height:44px;justify-content:center;width:44px}.iconButton svg{height:19px;width:19px}.sendButton{background:#21312a;border-radius:8px;color:#fff;min-height:44px;padding:0 16px}button:disabled{cursor:not-allowed;opacity:.55}.spin{animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:760px){.appShell{grid-template-columns:1fr}.sidebar{border-bottom:1px solid #d8d3c7;border-right:0}.chatList{display:flex;overflow-x:auto}.chatListItem{min-width:160px}.topBar{align-items:flex-start;flex-direction:column}.fileStatus{justify-content:flex-start}.composer{grid-template-columns:44px 44px 1fr}.sendButton{grid-column:1 / -1;justify-content:center}.bubble{max-width:92%}}