html,body,#root{height:100%;margin:0}*{box-sizing:border-box}body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f7f7f4;color:#1c211e}.app{height:100dvh;min-height:100%;display:grid;grid-template-columns:248px minmax(0,1fr);grid-template-rows:64px minmax(0,1fr) auto;overflow:hidden}header,footer{grid-column:1 / -1;display:flex;gap:12px;align-items:center;padding:14px 18px}header{justify-content:space-between;border-bottom:1px solid #d9ddd8;background:#fffffff5;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:2}.header-actions{display:flex;align-items:center;gap:12px;min-width:0}.header-actions span{white-space:nowrap;color:#4f5a54;font-size:14px}h1{margin:0;font-size:18px;letter-spacing:0;white-space:nowrap}.sidebar{min-height:0;display:flex;flex-direction:column;gap:8px;padding:16px;border-right:1px solid #d9ddd8;background:#f1f3ef;overflow:auto}.sidebar button{justify-content:flex-start;text-align:left;background:#fff;overflow:hidden;text-overflow:ellipsis}.conversation{min-height:0;padding:26px clamp(18px,5vw,48px);overflow:auto;-webkit-overflow-scrolling:touch}.thread{width:min(840px,100%);display:flex;flex-direction:column;gap:16px;margin:0 auto}article{max-width:80%;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere}.assistant{align-self:flex-start}.user{align-self:flex-end;background:#1c211e;color:#fff;padding:12px 14px;border-radius:12px}.assistant.empty{color:#66706a}.assistant.live:after{content:"";display:inline-block;width:8px;height:18px;margin-left:4px;vertical-align:-3px;background:#2c7a57}.media-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.media-list span{background:#e7efe9;color:#295741;padding:6px 10px;border-radius:6px;font-size:13px}footer{border-top:1px solid #d9ddd8;background:#fffffffa;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding-bottom:max(14px,env(safe-area-inset-bottom));z-index:2}textarea{min-height:72px;flex:1;resize:vertical;border:1px solid #cfd5cf;border-radius:10px;padding:12px;font:inherit;background:#fff}button{display:inline-flex;align-items:center;justify-content:center;min-height:42px;border:1px solid #cfd5cf;border-radius:10px;background:#fff;padding:0 16px;color:inherit;font:inherit}footer button{background:#2c7a57;border-color:#2c7a57;color:#fff}.upload{display:inline-flex;align-items:center;justify-content:center;min-height:42px;border:1px solid #cfd5cf;border-radius:10px;padding:0 14px;background:#fff;white-space:nowrap}.upload input{display:none}@media(max-width:760px){.app{grid-template-columns:1fr;grid-template-rows:52px minmax(0,1fr) auto}header{padding:10px 12px}h1{font-size:14px}.header-actions{gap:8px}.header-actions span{max-width:140px;overflow:hidden;text-overflow:ellipsis;font-size:12px}header button{min-height:34px;padding:0 12px;border-radius:9px;font-size:12px}.sidebar{display:none}.conversation{padding:18px 16px 20px}.thread{gap:14px}article{max-width:100%;font-size:15px;line-height:1.68}.user{max-width:88%;padding:10px 12px;border-radius:14px}.assistant.empty{margin-top:8px;font-size:14px}footer{gap:8px;padding:10px 10px max(10px,env(safe-area-inset-bottom))}textarea{min-height:48px;max-height:128px;resize:none;padding:12px;font-size:16px;border-radius:14px}.upload,footer button{min-height:48px;padding:0 12px;border-radius:14px;font-size:13px;flex:0 0 auto}}@media(max-width:420px){.conversation{padding-left:14px;padding-right:14px}.upload{display:none}footer button{min-width:58px}}