:root{--ink:#2d2440;--purple:#7357b8;--light:#f2ecff;--cream:#fffaf5;--gold:#f5c96a;--muted:#716a7c}*{box-sizing:border-box}body{background:var(--cream);color:var(--ink);margin:0;font-family:ui-rounded,Avenir Next,system-ui,sans-serif;font-size:18px}.shell{flex-direction:column;min-height:100vh;display:flex}.topbar{background:#fff;border-bottom:1px solid #e9e0da;justify-content:space-between;align-items:center;padding:18px 5vw;display:flex}.brand{color:var(--purple);font-size:27px;font-weight:800;text-decoration:none}.brand span{color:#d09231}.nav a{color:var(--ink);margin-left:24px;font-weight:650;text-decoration:none}.hero{text-align:center;max-width:980px;margin:auto;padding:70px 30px}.hero h1{margin:0 0 20px;font-size:clamp(40px,6vw,72px);line-height:1.02}.hero p{max-width:660px;color:var(--muted);margin:0 auto 32px;font-size:22px;line-height:1.55}.button{background:var(--purple);color:#fff;font:inherit;cursor:pointer;border:0;border-radius:16px;padding:15px 24px;font-weight:750;text-decoration:none;display:inline-block}.button.secondary{background:var(--light);color:var(--purple);margin-left:12px}.disclosure{text-align:center;background:#fff3ce;padding:12px 18px;font-size:15px}.chat-layout{background:#fff;border:1px solid #e7dff0;border-radius:24px;flex-direction:column;width:min(900px,94vw);height:calc(100vh - 130px);margin:20px auto;display:flex;overflow:hidden;box-shadow:0 12px 40px #493e6612}.chat-head{background:var(--light);padding:20px 24px}.chat-head h1{margin:0;font-size:25px}.chat-head p{color:var(--muted);margin:5px 0 0;font-size:15px}.messages{flex-direction:column;flex:1;gap:14px;padding:24px;display:flex;overflow:auto}.bubble{border-radius:20px;max-width:75%;padding:14px 18px;line-height:1.45}.bubble.alice{background:var(--light);align-self:flex-start}.bubble.child{background:var(--purple);color:#fff;align-self:flex-end}.composer{border-top:1px solid #eee;gap:10px;padding:16px;display:flex}.composer input{font:inherit;border:2px solid #d8cce7;border-radius:14px;flex:1;padding:14px}.composer input:focus{border-color:var(--purple);outline:3px solid #f5c96a}.panel{width:min(1040px,92vw);margin:36px auto}.panel h1{font-size:40px}.grid{grid-template-columns:1.35fr 1fr;gap:20px;display:grid}.card{background:#fff;border:1px solid #e7dfdb;border-radius:20px;margin-bottom:20px;padding:24px}.card h2{margin-top:0}.memory{border-top:1px solid #eee;padding:15px 0}.tag{background:var(--light);color:var(--purple);border-radius:999px;padding:4px 9px;font-size:13px;font-weight:700;display:inline-block}.metric{font-size:34px;font-weight:800}.mobile-block{display:none}@media (max-width:700px),(hover:none) and (pointer:coarse){.shell{display:none}.mobile-block{text-align:center;justify-content:center;align-items:center;min-height:100vh;padding:30px;display:flex}.mobile-block div{max-width:440px}.mobile-block h1{color:var(--purple)}.grid{grid-template-columns:1fr}}