.bgc{margin-bottom:2rem}.bgc-drop{text-align:center;border:2px dashed var(--border);border-radius:var(--radius-lg);background:var(--surface);flex-direction:column;align-items:center;gap:.5rem;padding:2.5rem 1.25rem;transition:border-color .15s,background .15s;display:flex}.bgc-drop.is-over{border-color:var(--accent);background:var(--accent-soft)}.bgc-drop-icon{width:64px;height:64px;color:var(--accent);background:var(--accent-soft);border-radius:50%;place-items:center;display:inline-grid}.bgc-drop-title{margin:.5rem 0 0;font-size:1.05rem;font-weight:700}.bgc-drop .btn{margin-top:.75rem}.bgc-drop-note{align-items:center;gap:.35rem;margin:.6rem 0 0;display:inline-flex}.bgc-work{align-items:start;gap:1.25rem;display:grid}@media (min-width:860px){.bgc-work{grid-template-columns:minmax(0,1fr) 21rem}}.bgc-stage{flex-direction:column;gap:.75rem;min-width:0;display:flex}.bgc-canvas-wrap{border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);background-color:#fff;background-image:linear-gradient(45deg,#e8eaed 25%,#0000 25% 75%,#e8eaed 75%),linear-gradient(45deg,#e8eaed 25%,#0000 25% 75%,#e8eaed 75%);background-position:0 0,9px 9px;background-size:18px 18px;place-items:center;padding:1rem;display:grid;position:relative}.bgc-canvas-wrap.is-picking{outline:2px solid var(--accent);outline-offset:2px;cursor:crosshair}.bgc-canvas-wrap.is-picking .bgc-canvas{cursor:crosshair}.bgc-canvas{border-radius:6px;width:auto;max-width:100%;height:auto;max-height:60vh;display:block}.bgc-busy{border-radius:var(--radius-lg);color:var(--text);background:#ffffffb8;place-items:center;font-size:.9rem;font-weight:650;display:grid;position:absolute;inset:0}.bgc-stage-actions{flex-wrap:wrap;gap:.5rem;display:flex}.bgc-stage-actions .btn{align-items:center;gap:.35rem;display:inline-flex}.bgc-shrunk{margin:0}.bgc-panel{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow);flex-direction:column;gap:1.1rem;padding:1.25rem;display:flex}@media (max-width:560px){.bgc-panel{padding:1.1rem 1rem}}.bgc-group{border:0;flex-direction:column;gap:.6rem;margin:0;padding:0;display:flex}.bgc-group legend{padding:0;font-size:.95rem;font-weight:650}.bgc-group>.muted{margin:0}.bgc-swatches{grid-template-columns:repeat(auto-fill,minmax(5.5rem,1fr));gap:.5rem;display:grid}.bgc-swatch{border:2px solid var(--border);cursor:pointer;min-height:3.6rem;font:inherit;border-radius:10px;align-items:flex-end;padding:.4rem;transition:border-color .15s,transform .12s;display:flex;position:relative;overflow:hidden}.bgc-swatch:hover:not(:disabled){border-color:var(--accent)}.bgc-swatch:active:not(:disabled){transform:scale(.98)}.bgc-swatch:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.bgc-swatch.is-on{border-color:var(--accent);box-shadow:inset 0 0 0 2px #fff}.bgc-swatch:disabled{opacity:.4;cursor:not-allowed}.bgc-swatch.is-alpha{background-color:#fff;background-image:linear-gradient(45deg,#e8eaed 25%,#0000 25% 75%,#e8eaed 75%),linear-gradient(45deg,#e8eaed 25%,#0000 25% 75%,#e8eaed 75%);background-position:0 0,7px 7px;background-size:14px 14px}.bgc-swatch-label{color:#1a1d21;background:#ffffffe6;border-radius:999px;padding:.15rem .4rem;font-size:.72rem;font-weight:700;line-height:1.2}.bgc-swatch-tick{color:#fff;background:var(--accent);border-radius:50%;place-items:center;width:20px;height:20px;display:grid;position:absolute;top:.3rem;right:.3rem}.bgc-swatch-custom input[type=color]{opacity:0;cursor:pointer;border:0;width:100%;height:100%;padding:0;position:absolute;inset:0}.bgc-formats{flex-wrap:wrap;gap:.45rem;display:flex}.bgc-chip{border:1px solid var(--border);background:var(--bg-soft);color:var(--text);font:inherit;cursor:pointer;border-radius:999px;padding:.45rem .95rem;font-size:.875rem;font-weight:650;transition:border-color .15s,background .15s,color .15s}.bgc-chip:hover{border-color:var(--accent)}.bgc-chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.bgc-chip.is-on{color:var(--accent-text);background:var(--accent);border-color:#0000}.bgc-tune-toggle{border:1px solid var(--border);background:var(--bg-soft);width:100%;color:var(--text);font:inherit;cursor:pointer;border-radius:10px;align-items:center;gap:.45rem;padding:.6rem .75rem;font-size:.9rem;font-weight:650;display:flex}.bgc-tune-toggle:hover{border-color:var(--accent)}.bgc-tune-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.bgc-caret{margin-left:auto;transition:transform .18s;display:inline-flex}.bgc-caret.is-open{transform:rotate(180deg)}.bgc-tune{border:1px solid var(--border);background:var(--bg-soft);border-top:0;border-radius:0 0 10px 10px;flex-direction:column;gap:1rem;padding:.9rem;display:flex}.bgc-slider{flex-direction:column;gap:.3rem;font-size:.875rem;display:flex}.bgc-slider>span:first-child{justify-content:space-between;gap:.75rem;font-weight:600;display:flex}.bgc-slider strong{font-variant-numeric:tabular-nums;color:var(--accent)}.bgc-slider input[type=range]{width:100%;accent-color:var(--accent)}.bgc-detected{color:var(--text-muted);align-items:center;gap:.45rem;margin:0;font-size:.8rem;display:flex}.bgc-detected-chip{border:1px solid var(--border);border-radius:5px;flex-shrink:0;width:18px;height:18px}.bgc-detected code{font-size:.78rem}.bgc-error{color:var(--danger);background:var(--danger-bg)}.bgc-go{justify-content:center;width:100%}.bgc-done{flex-direction:column;gap:.5rem;display:flex}.bgc-done .btn{align-items:center;gap:.4rem;display:inline-flex}.bgc-done p{margin:0}.bgc-page-section{margin-top:2.5rem}.bgc-page-section h2{margin-bottom:.75rem}.bgc-steps{grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));gap:1rem;display:grid}.bgc-step{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);padding:1.1rem}.bgc-step h3{margin:.6rem 0 .35rem;font-size:1rem}.bgc-step p{margin:0;font-size:.9rem}.bgc-step-icon{width:38px;height:38px;color:var(--accent);background:var(--accent-soft);border-radius:10px;place-items:center;display:inline-grid}.bgc-faqs{flex-direction:column;gap:.6rem;display:flex}.bgc-faq{border:1px solid var(--border);background:var(--surface);border-radius:12px;overflow:hidden}.bgc-faq summary{cursor:pointer;justify-content:space-between;align-items:center;gap:1rem;padding:.9rem 1.1rem;font-size:.95rem;font-weight:650;list-style:none;display:flex}.bgc-faq summary::-webkit-details-marker{display:none}.bgc-faq summary svg{flex-shrink:0;transition:transform .18s}.bgc-faq[open] summary svg{transform:rotate(180deg)}.bgc-faq p{margin:0;padding:0 1.1rem 1rem;font-size:.9rem;line-height:1.65}.bgc-more{margin-top:2rem}