/* --- AI agents page --- */
h1{font-size:clamp(36px,5.6vw,60px)}
.hero{padding:70px 0}
.hero .wrap{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.hero p.lead{margin:22px 0 28px}
.demo{background:var(--surface);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}
.demo-top{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.demo-top strong{font-size:15px;display:flex;align-items:center;gap:8px}
.tabs{display:flex;gap:6px}
.tabs button{font:inherit;font-size:13.5px;font-weight:700;border:1px solid var(--muted);background:var(--bg);color:var(--ink);border-radius:999px;padding:6px 12px;cursor:pointer}
.tabs button[aria-pressed="true"]{background:var(--indigo);border-color:var(--indigo);color:var(--surface)}
.log{height:330px;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:8px;background:var(--bg)}
.msg{max-width:84%;padding:10px 14px;border-radius:16px;font-size:15.5px;line-height:1.45}
.msg.u{align-self:flex-end;background:var(--accent-soft);border-bottom-right-radius:4px}
.msg.b{align-self:flex-start;background:var(--indigo-soft);border-bottom-left-radius:4px}
.typing{display:inline-flex;gap:4px}
.typing i{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:bl 1s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@keyframes bl{0%,80%,100%{opacity:.25}40%{opacity:1}}
.chips{display:flex;gap:8px;flex-wrap:wrap;padding:12px 16px;border-top:1px solid var(--line)}
.chips button{font:inherit;font-size:14px;border:1px solid var(--muted);background:var(--surface);color:var(--ink);border-radius:999px;padding:7px 13px;cursor:pointer;text-align:left}
.chips button:hover{border-color:var(--accent)}
.send{display:flex;gap:8px;padding:0 16px 14px}
.send input{flex:1;padding:11px 14px;border-radius:999px;border:1px solid var(--muted);background:var(--bg);color:var(--ink);font:inherit;min-width:0}
.sr{position:absolute;left:-999px}
.demo-foot{font-size:13px;color:var(--muted);padding:0 16px 14px}
.card .where{font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--indigo);margin-bottom:10px;display:block}
.rules{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.rules li{background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:18px 20px 18px 52px;position:relative}
.rules li::before{content:"";position:absolute;left:20px;top:25px;width:16px;height:9px;border-left:3px solid var(--ok);border-bottom:3px solid var(--ok);transform:rotate(-45deg)}
.rules b{display:block;margin-bottom:2px}
.rules span{color:var(--muted);font-size:15.5px}
.final{text-align:center}
.final .lead{margin:0 auto 26px}
@media (max-width:900px){ .hero .wrap,.rules{grid-template-columns:1fr} }
@media (max-width:520px){ .log{height:300px} }