:root{--bg:#0a0e0d;--panel:#111614;--line:#1f2a26;--green:#1fd17a;--green-dim:#0f6b40;--text:#e8efeb;--muted:#8aa098;--user:#16241d;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text)}.chat{display:flex;flex-direction:column;height:100vh;max-height:100%;background:var(--panel)}.chat__head{padding:14px 18px;font-weight:600;font-size:14px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px}.dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green)}.chat__log{flex:1 1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:12px}.bubble{max-width:82%;padding:11px 14px;border-radius:14px;line-height:1.45;font-size:14.5px;white-space:pre-wrap;word-wrap:break-word}.bubble--assistant{align-self:flex-start;background:#0e1412;border:1px solid var(--line);border-bottom-left-radius:4px}.bubble--user{align-self:flex-end;background:var(--user);border:1px solid var(--green-dim);border-bottom-right-radius:4px}.bubble--typing{color:var(--muted);font-style:italic}.chat__input{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}.chat__input textarea{flex:1 1;resize:none;background:#0a0f0d;color:var(--text);border:1px solid var(--line);border-radius:10px;padding:10px 12px;font:inherit;font-size:14.5px;max-height:120px}.chat__input textarea:focus{outline:none;border-color:var(--green-dim)}.chat__input button{background:var(--green);color:#04130b;border:none;border-radius:10px;padding:0 18px;font-weight:700;cursor:pointer}.chat__input button:disabled{opacity:.4;cursor:default}.demo{max-width:920px;margin:0 auto;padding:64px 24px;text-align:center}.demo h1{font-size:40px;margin:0 0 12px}.demo p{color:var(--muted);font-size:18px;margin:0 0 32px}.demo .frame{height:560px;max-width:420px;margin:0 auto;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.4)}.demo iframe{width:100%;height:100%;border:0}.demo .accent{color:var(--green)}.gate{flex:1 1;display:flex;flex-direction:column;justify-content:center;padding:28px 22px;gap:14px}.gate__hook{font-size:19px;line-height:1.35;margin:0;font-weight:600}.gate__sub{color:var(--muted);margin:0;font-size:14px}.gate__input{background:#0a0f0d;color:var(--text);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font:inherit;font-size:15px}.gate__input:focus{outline:none;border-color:var(--green-dim)}.gate__btn{background:var(--green);color:#04130b;border:none;border-radius:10px;padding:12px;font-weight:700;cursor:pointer;font-size:15px}.gate__btn:disabled{opacity:.4;cursor:default}.gate__err{color:#ff8b8b;font-size:13px;margin:0}