.explorer { padding-block: clamp(38px,6vw,84px); }
.explorer-heading { margin-bottom: 32px; }
.explorer-heading h1 { font: 400 clamp(44px,6vw,86px)/1.04 var(--serif); margin: 16px 0; }
.explorer-heading > p:last-child, .stage-notes p { color: var(--muted); max-width: 58ch; }
.model-board { display: grid; grid-template-columns: minmax(0,1.8fr) minmax(270px,1fr); border: 1px solid var(--line); margin-bottom: 28px; }
.model-view { position: relative; display: grid; align-items: center; padding: 55px 0 38px; color: #ecdfc1; background-color: #183b32; background-image: linear-gradient(#ffffff0b 1px,transparent 1px),linear-gradient(90deg,#ffffff0b 1px,transparent 1px); background-size: 28px 28px; }
.model-view svg { width: 100%; height: auto; overflow: visible; }
.drawing-label,.drawing-caption { position: absolute; margin: 0; left: 20px; }
.drawing-label { top: 19px; font: 11px var(--sans); text-transform: uppercase; letter-spacing: .16em; }
.model-view .drawing-caption { bottom: 15px; color: #ecdfc1; font-size: 12px; }
.stage-panel { background: #fcfbf7; padding: clamp(18px,3vw,40px); }
.stage-options { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 6px; }
.stage-panel button { cursor: pointer; color: var(--green); font: 600 13px var(--sans); }
.stage-options button { text-align: left; min-height: 56px; padding: 9px 12px; border: 1px solid var(--line); background: transparent; }
.stage-options small { display: block; color: inherit; font-size: 10px; }
.stage-options button[aria-pressed=true],.stage-options button:hover { background: var(--green); color: white; }
.stage-notes { min-height: 10em; padding-block: 20px; }
.stage-notes h2 { font: 400 clamp(28px,3vw,38px)/1.1 var(--serif); margin: 0 0 8px; }
.stage-notes p { margin: 0; font-size: 15px; }
.play-build { padding: 12px 18px; border: 1px solid var(--green); background: transparent; }
.model-view .absent { display: none; }
@media (prefers-reduced-motion: no-preference) {
  .model-view .assembling { animation: assemble-layer .65s ease-out both; }
  @keyframes assemble-layer { from { opacity: 0; transform: translateY(-14px); } to { opacity: 1; transform: translateY(0); } }
}
@media (max-width: 760px) {
  .model-board { grid-template-columns: minmax(0,1fr); }
  .stage-notes { min-height: 0; }
}