.cube-stair-panel{margin-top:18px}.cube-stair-layout{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:center}
.cube-viewport{height:300px;border-radius:18px;background:radial-gradient(circle at 50% 45%,#eff6ff,#e2e8f0);display:grid;place-items:center;perspective:750px;overflow:hidden}
.cube-stair{position:relative;width:200px;height:190px;transform-style:preserve-3d;transition:transform .28s ease}
.cube-visual{position:absolute;width:54px;height:54px;border:0;background:transparent;transform-style:preserve-3d;padding:0;cursor:pointer;transition:filter .2s}
.cube-visual.active{filter:drop-shadow(0 0 9px #f59e0b)}
.cube-visual.c1{left:8px;top:126px}.cube-visual.c2{left:70px;top:126px}.cube-visual.c3{left:132px;top:126px}.cube-visual.c4{left:8px;top:64px}.cube-visual.c5{left:70px;top:64px}.cube-visual.c6{left:8px;top:2px}
.cube-visual-face{position:absolute;inset:0;display:grid;place-items:center;border:2px solid #94a3b8;border-radius:9px;background:#fff;color:#0b1c3c;font-weight:900;backface-visibility:hidden}
.cube-visual-face.front{transform:translateZ(27px)}.cube-visual-face.back{transform:rotateY(180deg) translateZ(27px)}.cube-visual-face.right{transform:rotateY(90deg) translateZ(27px)}.cube-visual-face.left{transform:rotateY(-90deg) translateZ(27px)}.cube-visual-face.top{transform:rotateX(90deg) translateZ(27px)}.cube-visual-face.bottom{transform:rotateX(-90deg) translateZ(27px)}
.cube-controls{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin-top:10px}.cube-controls button{border:1px solid #cbd5e1;background:#fff;color:#0b1c3c;border-radius:9px;padding:7px 9px;font-size:10px;font-weight:850}
.cube-contrib{display:grid;grid-template-columns:1fr 1fr;gap:8px}.cube-contrib>button{display:grid;grid-template-columns:1fr auto;text-align:left;border:1px solid #e2e8f0;border-radius:11px;background:#f8fafc;padding:9px;color:#475569}.cube-contrib>button.active{border-color:#f59e0b;background:#fffbeb}.cube-contrib span{font-size:10px;font-weight:850}.cube-contrib strong{font-size:18px;color:#0b1c3c}.cube-contrib small{grid-column:1/-1;font-size:9px;color:#64748b}.cube-total{grid-column:1/-1;border-radius:12px;background:#0b1c3c;color:#fff;padding:11px;text-align:center;font-weight:800}.cube-total b{color:#fde68a;font-size:22px}.cube-contrib p{grid-column:1/-1;margin:0;padding:10px;border-radius:10px;background:#fff7db;color:#92400e;font-size:11px;font-weight:750}
@media(max-width:800px){.cube-stair-layout{grid-template-columns:1fr}.cube-contrib{grid-template-columns:1fr 1fr}}@media(max-width:500px){.cube-contrib{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.cube-stair{transition:none}}