.chat--big{max-width:860px;margin-inline:auto;padding:30px;gap:16px}
.chat--big .chat__msg{font-size:16.5px;max-width:92%}
.chat__sep{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--blue);font-weight:600;border-top:1px solid var(--line2);padding-top:16px;opacity:0;transition:opacity .5s}
.chat__sep.on{opacity:1}.chat__sep:first-child{border-top:0;padding-top:0}
.chat__tool{overflow-wrap:anywhere}
.mcp-tools{margin-top:12px!important;display:flex;flex-wrap:wrap;gap:6px}
.card h3 code.inline{font-size:.62em;overflow-wrap:anywhere}
@media(prefers-reduced-motion:reduce){.chat__sep{opacity:1;transition:none}}
@media(max-width:600px){.chat--big{padding:18px}}

/* hero + page additions */
.aix-hero{padding:140px 0 0;background:radial-gradient(900px 500px at 50% 100%,#cfe0ff,transparent 70%),linear-gradient(180deg,#f7faff,#eaf1fd)}
.aix-top{text-align:center}
.aix-hero h1 span{display:block}
.aix-hero h1{margin-inline:auto;max-width:900px;font-size:clamp(2.6rem,5.4vw,4.8rem);line-height:1}
.aix-hero .lead{margin-inline:auto;max-width:560px}
.aix-btns{justify-content:center}
.aix-top .uch-fine{text-align:center}
.aix-stage{position:relative;margin-top:50px;max-width:1180px}
.aix-frame{border-radius:26px 26px 0 0;overflow:hidden;border:1px solid #b9d0f5;border-bottom:0;box-shadow:0 -10px 100px rgba(36,103,232,.28),0 40px 100px rgba(10,30,70,.25);background:#fff;transform:perspective(1800px) rotateX(3deg);transform-origin:50% 100%;-webkit-mask-image:linear-gradient(180deg,#000 82%,transparent);mask-image:linear-gradient(180deg,#000 82%,transparent)}
.aix-frame img{display:block;width:100%;height:auto}
.aix-tag{position:absolute;z-index:2;background:#fff;border:1px solid #cfe0f7;border-radius:99px;padding:10px 18px;font-size:15px;font-weight:600;color:var(--navy);box-shadow:0 14px 40px rgba(10,30,70,.2);animation:aixF 5s ease-in-out infinite}
.aix-tag--a{left:-6px;top:20%}.aix-tag--b{right:-6px;top:42%;animation-delay:-2.5s;color:#1d7a43}
@keyframes aixF{50%{transform:translateY(-10px)}}
@media(max-width:900px){.aix-tag--a{left:4px}.aix-tag--b{right:4px}.aix-tag{font-size:13px;padding:8px 14px}.aix-frame{transform:none}}
@media(prefers-reduced-motion:reduce){.aix-tag{animation:none}}