.bc-start-wrap{margin:1.2em 0}
.bc-section{clear:both;margin:2em 0;padding:1.2em;border:1px solid #e3d9c8;border-radius:10px;background:#fbf8f2}
.bc-section[hidden]{display:none}
.bc-app{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,1fr);gap:24px;align-items:start}
@media(max-width:860px){.bc-app{grid-template-columns:1fr}}
.bc-stage{position:sticky;top:20px;background:linear-gradient(#f4efe6,#e6dccb);border-radius:8px;overflow:hidden}
.bc-canvas{width:100%;height:min(70vh,560px);min-height:320px;position:relative}
.bc-canvas canvas{display:block;cursor:grab}
.bc-canvas canvas:active{cursor:grabbing}
.bc-dims{position:absolute;top:10px;left:12px;font:600 13px/1 system-ui,sans-serif;color:#5a4528;background:rgba(255,255,255,.7);padding:5px 8px;border-radius:4px}
.bc-hint{position:absolute;bottom:8px;left:0;right:0;text-align:center;font:12px system-ui,sans-serif;color:#7a6548;pointer-events:none}
.bc-panel{display:flex;flex-direction:column;gap:12px}
.bc-material{margin:0;font-weight:600;color:#6b4f2a}
.bc-group{border:1px solid #e0d5c0;border-radius:8px;padding:10px 14px 12px;margin:0;background:#fff}
.bc-group legend{padding:0 6px;font-weight:600}
.bc-row{display:grid;grid-template-columns:100px 1fr 70px;gap:10px;align-items:center;margin:6px 0}
.bc-row input[type=range]{width:100%}
.bc-out{text-align:right;font-variant-numeric:tabular-nums}
.bc-checks{display:grid;grid-template-columns:repeat(3,auto);gap:6px 14px;justify-content:start}
.bc-check{display:flex;gap:6px;align-items:center;cursor:pointer}
.bc-imgs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}
.bc-img{width:64px;height:64px;padding:3px;border:2px solid #ddd;border-radius:6px;background:repeating-conic-gradient(#eee 0 25%,#fff 0 50%) 50%/12px 12px;cursor:pointer}
.bc-img.on{border-color:#a8742f;box-shadow:0 0 0 2px rgba(168,116,47,.25)}
.bc-img img{width:100%;height:100%;object-fit:contain}
.bc-img span{font-size:11px}
.bc-printopts[hidden]{display:none}
.bc-price{font-size:1.3em}
.bc-buy{display:flex;gap:10px;align-items:center}
.bc-buy .qty{width:70px}

/* ---- language, design, logo/text ---- */
.bc-lang-slot{display:inline-block;vertical-align:middle;margin-left:10px}
.bc-lang{display:inline-flex;gap:4px}
.bc-lang-btn{min-width:38px;padding:5px 8px;border:1px solid #d6c9b0;border-radius:5px;background:#fff;font:600 12px/1 system-ui,sans-serif;color:#5a4528;cursor:pointer}
.bc-lang-btn.on{background:#a8742f;border-color:#a8742f;color:#fff}
.bc-top{display:flex;align-items:center;gap:8px;margin:0 0 14px}
.bc-top-lbl{font-size:16px}
.bc-modes{display:flex;gap:16px;margin-bottom:8px}
.bc-colors{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.bc-sw{width:26px;height:26px;padding:0;border:2px solid #fff;border-radius:50%;box-shadow:0 0 0 1px #bbb;cursor:pointer}
.bc-sw.on{box-shadow:0 0 0 2px #a8742f}
.bc-colors input[type=color]{width:34px;height:30px;padding:0;border:1px solid #bbb;border-radius:4px;background:#fff;cursor:pointer}
.bc-mode-color[hidden],.bc-mode-image[hidden],.bc-ctl[hidden]{display:none}
.bc-note{margin:6px 0;font-size:12px;color:#7a6548}
.bc-tabs{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
.bc-tab{padding:6px 10px;border:1px solid #d6c9b0;border-radius:5px;background:#fff;font-size:13px;cursor:pointer}
.bc-tab.on{background:#a8742f;border-color:#a8742f;color:#fff}
.bc-tab.used:not(.on){border-color:#a8742f;box-shadow:inset 0 -3px 0 #a8742f}
.bc-tab:disabled{opacity:.4;cursor:not-allowed}
.bc-sub{margin:10px 0;padding-top:8px;border-top:1px dashed #e0d5c0}
.bc-sub h4{margin:0 0 6px;font-size:14px}
.bc-file{display:none}
.bc-logo-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.bc-logo-info{display:flex;align-items:center;gap:8px}
.bc-thumb{width:44px;height:44px;object-fit:contain;border:1px solid #ddd;border-radius:4px;background:repeating-conic-gradient(#eee 0 25%,#fff 0 50%) 50%/10px 10px}
.bc-textarea{width:100%;box-sizing:border-box;padding:6px 8px;border:1px solid #d6c9b0;border-radius:5px;font:inherit;resize:vertical}
.bc-select{padding:5px 8px;border:1px solid #d6c9b0;border-radius:5px;background:#fff}
.bc-row2{display:grid;grid-template-columns:100px 1fr;gap:10px;align-items:center;margin:6px 0}
.bc-msg{min-height:1.2em;font-size:13px;color:#5a4528}
.bc-msg.err{color:#b32d2e}
.bc-form .bc-start[hidden]{display:none}

/* ---- v1.2: fixed colours, per-side sliders, price lines ---- */
.bc-h4{margin:10px 0 4px;font-size:13px;font-weight:600}
.bc-zooms .bc-row{grid-template-columns:70px 1fr 60px}
.bc-price-parts{margin:4px 0 0;padding:0;list-style:none;font-size:13px;color:#7a6548}
.bc-price-parts li{margin:1px 0}