html{background:#0f1117}*{box-sizing:border-box}body{color:#f3f4f6;background:#0f1117;margin:0;font-family:Arial,sans-serif}button,textarea{font:inherit}.aplicacion{background:#131722;grid-template-rows:auto 1fr auto;max-width:900px;min-height:100dvh;margin:0 auto;display:grid}header{border-bottom:1px solid #2b3242;padding:18px 20px}h1{margin:0;font-size:24px}.titulo-conversacion{color:#8d96aa;margin-top:5px;font-size:14px}.mensajes{padding:18px;overflow-y:auto}.vacio{color:#8d96aa;text-align:center;margin-top:40px}.mensaje{white-space:pre-wrap;overflow-wrap:anywhere;border-radius:16px;max-width:85%;margin-bottom:14px;padding:12px 14px;line-height:1.45}.mensaje strong{margin-bottom:5px;display:block}.mensaje.vos{background:#244b9b;margin-left:auto}.mensaje.chatia{background:#222938;margin-right:auto}footer{background:#151a25;border-top:1px solid #2b3242;padding:10px 14px 14px}.entrada{grid-template-columns:1fr auto;gap:10px;display:grid}textarea{resize:vertical;color:#fff;background:#1c2230;border:1px solid #374055;border-radius:14px;outline:none;min-height:54px;max-height:160px;padding:14px}button{color:#fff;background:#3264c8;border:0;border-radius:14px;min-width:90px;padding:0 18px;font-weight:700}button:disabled,textarea:disabled{opacity:.5}.error{color:#ff9c9c;padding:0 4px 9px;font-size:13px}