/* Pile studio v57: summary dashboard, undo toolbar, section guides, 3D FE and spring views */
#pile-app .pl-tools { display: inline-flex; gap: 4px; flex-wrap: wrap; align-items: center; }
#pile-app .pl-tools .btn { min-height: 30px; }
#pile-app .pl-hint { margin: 0 0 12px; padding: 9px 12px; border-left: 3px solid var(--purple, #6b2d5c); background: var(--purple-tint, rgba(107,45,92,.06)); border-radius: 0 8px 8px 0; font-size: .86rem; color: var(--ink, #231a14); }
#pile-app .pl-hint b { color: var(--purple-ink, var(--purple, #6b2d5c)); }
#pile-app .pl-sum td { vertical-align: middle; }
#pile-app .pl-bar { display: inline-block; width: 110px; height: 8px; background: var(--line, #e5ddcf); border-radius: 4px; overflow: hidden; vertical-align: middle; margin-right: 6px; }
#pile-app .pl-bar i { display: block; height: 100%; }
#pile-app .pl-flow { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
#pile-app .pl-flow button { width: 100%; height: 100%; text-align: left; display: grid; gap: 2px; padding: 10px 12px; border: 1px solid var(--line, #e5ddcf); border-radius: 10px; background: var(--surface, #fff); color: var(--ink, #231a14); cursor: pointer; font: inherit; }
#pile-app .pl-flow button:hover { border-color: var(--purple, #6b2d5c); box-shadow: var(--shadow, 0 2px 8px rgba(0,0,0,.08)); }
#pile-app .pl-flow b { display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--purple, #6b2d5c); color: #fff; font-size: .75rem; }
#pile-app .pl-flow span { font-weight: 700; } #pile-app .pl-flow small { color: var(--muted, #7d7466); font-size: .76rem; }
#pile-app .pl-busy { display: flex; align-items: center; gap: 10px; padding: 18px; color: var(--muted, #7d7466); }
#pile-app .pl-busy i { width: 18px; height: 18px; border: 3px solid var(--line, #e5ddcf); border-top-color: var(--purple, #6b2d5c); border-radius: 50%; animation: plspin .8s linear infinite; }
@keyframes plspin { to { transform: rotate(360deg); } }
#pile-app .pl-mat td, #pile-app .pl-mat th { text-align: right; font-variant-numeric: tabular-nums; }
#pile-app .cp-more { margin-top: 10px; } #pile-app .cp-more summary { cursor: pointer; font-weight: 600; color: var(--purple, #6b2d5c); }
#pile-app .pl3d-fe { border: 1px solid var(--line, #e5ddcf); border-radius: 10px; overflow: hidden; margin-top: 10px; }
@media (max-width: 640px) { #pile-app .pl-tools .btn { padding: 4px 8px; } #pile-app .pl-bar { width: 70px; } }