*{box-sizing:border-box}body{margin:0;background:#f7f8f5;color:#173d39;font-family:Tahoma,Arial,sans-serif}button,a,textarea,select{font:inherit}button,a.primary{cursor:pointer}button{border:1px solid #d8e1dc;background:#fff;color:inherit;border-radius:12px;padding:12px}button:disabled{opacity:.5;cursor:wait}button:focus-visible,a:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #c69343;outline-offset:3px}.primary{display:inline-block;background:#174d43;color:#fff;padding:14px 22px;border:0;border-radius:12px;text-decoration:none}.logo{display:inline-grid;place-items:center;background:#dce9dc;border-radius:18px;width:52px;height:52px;font-size:30px}.welcome{max-width:650px;margin:12vh auto;padding:30px;text-align:center}.welcome h1{font-size:44px;line-height:1.6}.welcome p{color:#54716a}.welcome small{display:block;margin:25px;line-height:1.8}.eyebrow{font-size:11px;letter-spacing:2px;color:#6c8178}.layout{display:grid;grid-template-columns:280px 1fr;height:100dvh}aside{background:#edf1ea;padding:26px;display:flex;flex-direction:column;gap:24px;border-left:1px solid #dfe6dc}.brand{display:flex;align-items:center;gap:12px}h2{font-size:17px}nav{overflow:auto;flex:1}nav button{display:block;width:100%;text-align:right;border:0;margin:6px 0;background:transparent;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}nav button[aria-current]{background:#dbe5d8}footer{display:grid;gap:8px}.chat{display:flex;flex-direction:column;min-height:0;max-width:1100px;width:100%;margin:auto;height:100%;padding:30px 50px}header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #e1e7de;padding-bottom:20px}header h1{font-size:21px;margin:8px 0}.badge{font-size:12px;padding:8px 14px;background:#e4ecdf;border-radius:20px}.messages{overflow:auto;flex:1;padding:24px 0;line-height:1.9}.messages article{padding:20px;background:#fff;border:1px solid #e3e8df;border-radius:16px;margin:15px 0}.messages article.user{background:#eaf0e6;margin-left:10%}article p{white-space:pre-wrap;overflow-wrap:anywhere}article small{color:#64796c;font-size:11px;overflow-wrap:anywhere}article button{font-size:11px;padding:5px 10px;margin-left:8px}.empty{text-align:center;padding:10vh 0;color:#5e786d}.empty h2{font-size:26px}.error{background:#fff0ec;color:#8c392a;padding:16px;border-radius:12px;font-size:14px}form{background:#fff;border:1px solid #d7dfd3;padding:18px;border-radius:18px}form label{display:block;font-size:12px}textarea{resize:vertical;min-height:85px;width:100%;border:0;padding:15px 0;background:transparent;color:inherit;line-height:1.7}.tools{display:flex;justify-content:space-between;gap:10px}select{border:0;border-radius:8px;padding:8px;background:#f2f5ee;color:inherit}form small{display:block;font-size:10px;margin-top:13px;color:#6a7f70}@media(max-width:720px){.layout{grid-template-columns:1fr;height:auto;min-height:100dvh}aside{padding:15px;gap:12px;border:0}aside h2{display:none}nav{display:flex;max-height:55px;gap:8px}nav button{width:auto;max-width:200px;flex-shrink:0}footer{display:flex;justify-content:space-between}.chat{height:75dvh;padding:18px}header{padding-bottom:8px}.welcome h1{font-size:32px}.messages article{padding:15px}}