Steadicam

<div class='frame'><div class='map'><div class='route'></div><i class='marker'></i><b>CAMERA PATH</b></div><div class='view'><div class='corridor'><i></i><i></i><i></i></div><div class='level'></div><span>LEVEL HORIZON</span></div></div>

.frame{position:absolute;inset:0;overflow:hidden;background:var(--bg)}
.map{position:absolute;left:6%;right:6%;top:7%;height:30%;border-bottom:1px solid var(--line)}
.route{position:absolute;left:8%;right:8%;top:38%;height:42%;border:2px dashed var(--accent);border-color:transparent transparent var(--accent) var(--accent);border-radius:0 0 0 90%;transform:skewX(-15deg)}
.marker{position:absolute;left:8%;top:55%;width:13px;height:13px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--surface);animation:follow 4s ease-in-out infinite}
.map>b{position:absolute;right:1%;top:7%;font:700 clamp(7px,1.8vmin,10px) ui-monospace,monospace;letter-spacing:.1em;color:var(--muted)}
.view{position:absolute;left:6%;right:6%;top:43%;bottom:7%;overflow:hidden;border:1px solid var(--line);background:linear-gradient(180deg,#bdd6d0 0 47%,#d6cba7 47% 100%)}
.corridor{position:absolute;inset:0;animation:walk 4s ease-in-out infinite}
.corridor i{position:absolute;left:18%;top:0;width:2px;height:100%;background:rgba(255,255,255,.58);transform:rotate(12deg)}
.corridor i:nth-child(2){left:50%;transform:none;background:var(--surface)}
.corridor i:nth-child(3){left:82%;transform:rotate(-12deg)}
.level{position:absolute;left:0;right:0;top:47%;height:2px;background:var(--accent)}
.view span{position:absolute;left:4%;bottom:5%;font:700 clamp(7px,1.8vmin,10px) ui-monospace,monospace;letter-spacing:.1em;color:var(--fg)}
@keyframes follow{0%,8%{left:8%;top:55%}52%{left:82%;top:62%}92%,100%{left:8%;top:55%}}
@keyframes walk{0%,8%{transform:scale(1)}52%{transform:scale(1.13)}92%,100%{transform:scale(1)}}