:root{font-family:Inter,ui-sans-serif,system-ui,sans-serif;color:#172036;background:#eef2ff}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 10% 10%,#dff7ff,transparent 34%),radial-gradient(circle at 90% 90%,#e9ddff,transparent 38%),#f8faff}.page{min-height:100vh;display:grid;grid-template-columns:1fr minmax(320px,440px);gap:7vw;align-items:center;max-width:1100px;margin:auto;padding:32px}.hero{max-width:520px}.eyebrow{color:#6957d9;font-weight:800;letter-spacing:.12em;text-transform:uppercase;font-size:.75rem}.hero h1{font-size:clamp(2.5rem,6vw,5rem);line-height:.98;margin:.4em 0 .25em;letter-spacing:-.05em}.hero p{color:#667085;font-size:1.15rem}.chat{height:min(720px,86vh);background:#fff;border:1px solid #e8eaf1;border-radius:24px;box-shadow:0 24px 70px #4d589126;display:flex;flex-direction:column;overflow:hidden}.chat__header{padding:18px 20px;display:flex;align-items:center;gap:12px;border-bottom:1px solid #eee}.avatar{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#6556e8,#8f6df2);color:white;display:grid;place-items:center;font-weight:800}.chat__header small{display:block;color:#7d8497;margin-top:3px}.chat__header small i{display:inline-block;width:7px;height:7px;border-radius:50%;background:#22c55e;margin-right:5px}.chat__header button{margin-left:auto;border:0;background:#f2f3f7;border-radius:10px;width:36px;height:36px;cursor:pointer;font-size:1.1rem}.messages{flex:1;padding:20px;overflow:auto;display:flex;flex-direction:column;gap:12px}.message{max-width:82%;padding:11px 14px;border-radius:16px;line-height:1.45;white-space:pre-wrap;overflow-wrap:anywhere}.message.user{align-self:flex-end;background:#6657e8;color:white;border-bottom-right-radius:5px}.message.assistant{align-self:flex-start;background:#f1f3f7;color:#273044;border-bottom-left-radius:5px}.message.typing{color:#81889a}.composer{display:flex;align-items:flex-end;gap:10px;padding:14px;border-top:1px solid #eee}.composer textarea{flex:1;resize:none;max-height:120px;border:1px solid #dde0e8;border-radius:14px;padding:12px 14px;font:inherit;outline:none}.composer textarea:focus{border-color:#7566e8;box-shadow:0 0 0 3px #7566e81a}.composer button{border:0;border-radius:13px;width:44px;height:44px;background:#6657e8;color:white;font-size:1.15rem;cursor:pointer}.composer button:disabled{opacity:.5}.notice{min-height:18px;margin:0 18px 10px;color:#c2413b;font-size:.78rem}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}@media(max-width:800px){.page{display:block;padding:12px}.hero{padding:25px 8px 16px}.hero h1{font-size:2.5rem}.chat{height:72vh;border-radius:20px}}