.engine-demo{grid-template-columns:290px minmax(0,1fr) 372px;gap:16px;height:100%;min-height:calc(100vh - 64px);padding:16px;display:grid}.engine-sidebar,.engine-aside{flex-direction:column;gap:14px;display:flex;overflow-y:auto}.engine-stage{min-width:0;min-height:460px;display:flex}.engine-canvas-wrap{border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--navy-800);flex:1;min-height:460px;position:relative;overflow:hidden}@media (max-width:1180px){.engine-demo{grid-template-columns:270px minmax(0,1fr);grid-template-areas:"controls stage""aside aside"}.engine-sidebar{grid-area:controls}.engine-stage{grid-area:stage}.engine-aside{flex-flow:wrap;grid-area:aside}.engine-aside>*{flex:1;min-width:280px}}@media (max-width:760px){.engine-demo{grid-template-columns:1fr;grid-template-areas:"stage""controls""aside";height:auto}.engine-stage{min-height:420px}}.fs-stage{border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--navy-800);height:clamp(380px,100vh - 215px,820px);display:flex;position:relative;overflow:hidden}.fs-stage-canvas{flex:1;min-width:0;min-height:0}.fs-stage-canvas .cylinder-view{width:100%;height:100%}.fs-chip{border-radius:var(--radius-sm);background:#060d1ad9;border:1px solid;border-left-width:3px;align-items:center;gap:10px;max-width:250px;padding:8px 12px;display:flex;position:absolute;top:14px;left:14px}.fs-chip--narrow{max-width:176px}.fs-chip-dot{border-radius:50%;flex:none;width:10px;height:10px}.fs-chip-body{min-width:0}.fs-chip-body strong{font-size:13.5px;display:block}.fs-chip-body small{color:var(--text-dim);font-size:11px;line-height:1.4;display:block}.fs-angle{font-family:var(--mono);color:var(--altitude);border:1px solid var(--line);border-radius:var(--radius-sm);background:#060d1ad9;padding:6px 10px;font-size:12px;position:absolute;bottom:14px;right:14px}.fs-progress{background:#7aa2d626;height:3px;position:absolute;bottom:0;left:0;right:0}.fs-progress-fill{height:100%}@media (max-width:700px){.fs-chip{max-width:min(62vw,240px);inset:auto auto 14px 14px}.fs-angle{inset:10px auto auto 10px}}