.bkbg-brc-wrap{padding:28px 20px;border-radius:16px;font-family:system-ui,-apple-system,sans-serif;box-sizing:border-box;text-align:center}.bkbg-brc-title{margin:0 0 4px;font-family:var(--bkbg-brc-title-font-family,inherit);font-size:var(--bkbg-brc-title-font-size-d,var(--bkbg-brc-title-font-size,26px));font-weight:var(--bkbg-brc-title-font-weight,800);font-style:var(--bkbg-brc-title-font-style,normal);text-transform:var(--bkbg-brc-title-text-transform,none);text-decoration:var(--bkbg-brc-title-text-decoration,none);line-height:var(--bkbg-brc-title-line-height-d,var(--bkbg-brc-title-line-height,1.2));letter-spacing:var(--bkbg-brc-title-letter-spacing-d,var(--bkbg-brc-title-letter-spacing,normal));word-spacing:var(--bkbg-brc-title-word-spacing-d,var(--bkbg-brc-title-word-spacing,normal))}.bkbg-brc-subtitle{margin:0 0 18px;font-family:var(--bkbg-brc-sub-font-family,inherit);font-size:var(--bkbg-brc-sub-font-size-d,var(--bkbg-brc-sub-font-size,14px));font-weight:var(--bkbg-brc-sub-font-weight,normal);font-style:var(--bkbg-brc-sub-font-style,normal);text-transform:var(--bkbg-brc-sub-text-transform,none);text-decoration:var(--bkbg-brc-sub-text-decoration,none);line-height:var(--bkbg-brc-sub-line-height-d,var(--bkbg-brc-sub-line-height,1.5));letter-spacing:var(--bkbg-brc-sub-letter-spacing-d,var(--bkbg-brc-sub-letter-spacing,normal));word-spacing:var(--bkbg-brc-sub-word-spacing-d,var(--bkbg-brc-sub-word-spacing,normal))}.bkbg-brc-input-row{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-bottom:16px}.bkbg-brc-input{padding:10px 14px;border-radius:8px;border:2px solid #e5e7eb;font-size:15px;font-family:monospace;text-align:center;outline:none;transition:border-color 0.2s;min-width:200px;max-width:340px;width:100%}.bkbg-brc-input:focus{border-color:var(--bkbg-brc-accent,#1f2937)}.bkbg-brc-generate-btn{padding:10px 22px;border-radius:8px;border:none;font-weight:700;font-size:14px;color:#fff;cursor:pointer;transition:opacity 0.2s,transform 0.1s}.bkbg-brc-generate-btn:hover{opacity:.85}.bkbg-brc-generate-btn:active{transform:scale(.97)}.bkbg-brc-canvas-wrap{display:flex;justify-content:center;margin-bottom:16px}.bkbg-brc-canvas{border-radius:8px;border:1px solid #e5e7eb;display:block;max-width:100%}.bkbg-brc-error{color:#ef4444;font-size:13px;margin-bottom:10px;min-height:18px}.bkbg-brc-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}.bkbg-brc-action-btn{padding:9px 22px;border-radius:8px;font-size:14px;font-weight:700;cursor:pointer;transition:opacity 0.2s,transform 0.1s;border:2px solid;background:#fff0}.bkbg-brc-action-btn:hover{opacity:.75}.bkbg-brc-action-btn:active{transform:scale(.97)}.bkbg-brc-toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(20px);background:#111827;color:#fff;padding:10px 22px;border-radius:10px;font-size:14px;font-weight:600;pointer-events:none;opacity:0;transition:opacity 0.3s,transform 0.3s;z-index:9999}.bkbg-brc-toast.bkbg-brc-toast-show{opacity:1;transform:translateX(-50%) translateY(0)}@media (max-width:480px){.bkbg-brc-wrap{padding:14px 10px}.bkbg-brc-input{font-size:13px}}@media (max-width:1024px){.bkbg-brc-title{font-size:var(--bkbg-brc-title-font-size-t,var(--bkbg-brc-title-font-size-d,var(--bkbg-brc-title-font-size,26px)));line-height:var(--bkbg-brc-title-line-height-t,var(--bkbg-brc-title-line-height-d,var(--bkbg-brc-title-line-height,1.2)));letter-spacing:var(--bkbg-brc-title-letter-spacing-t,var(--bkbg-brc-title-letter-spacing-d,var(--bkbg-brc-title-letter-spacing,normal)));word-spacing:var(--bkbg-brc-title-word-spacing-t,var(--bkbg-brc-title-word-spacing-d,var(--bkbg-brc-title-word-spacing,normal)))}.bkbg-brc-subtitle{font-size:var(--bkbg-brc-sub-font-size-t,var(--bkbg-brc-sub-font-size-d,var(--bkbg-brc-sub-font-size,14px)));line-height:var(--bkbg-brc-sub-line-height-t,var(--bkbg-brc-sub-line-height-d,var(--bkbg-brc-sub-line-height,1.5)));letter-spacing:var(--bkbg-brc-sub-letter-spacing-t,var(--bkbg-brc-sub-letter-spacing-d,var(--bkbg-brc-sub-letter-spacing,normal)));word-spacing:var(--bkbg-brc-sub-word-spacing-t,var(--bkbg-brc-sub-word-spacing-d,var(--bkbg-brc-sub-word-spacing,normal)))}}@media (max-width:767px){.bkbg-brc-title{font-size:var(--bkbg-brc-title-font-size-m,var(--bkbg-brc-title-font-size-t,var(--bkbg-brc-title-font-size-d,var(--bkbg-brc-title-font-size,26px))));line-height:var(--bkbg-brc-title-line-height-m,var(--bkbg-brc-title-line-height-t,var(--bkbg-brc-title-line-height-d,var(--bkbg-brc-title-line-height,1.2))));letter-spacing:var(--bkbg-brc-title-letter-spacing-m,var(--bkbg-brc-title-letter-spacing-t,var(--bkbg-brc-title-letter-spacing-d,var(--bkbg-brc-title-letter-spacing,normal))));word-spacing:var(--bkbg-brc-title-word-spacing-m,var(--bkbg-brc-title-word-spacing-t,var(--bkbg-brc-title-word-spacing-d,var(--bkbg-brc-title-word-spacing,normal))))}.bkbg-brc-subtitle{font-size:var(--bkbg-brc-sub-font-size-m,var(--bkbg-brc-sub-font-size-t,var(--bkbg-brc-sub-font-size-d,var(--bkbg-brc-sub-font-size,14px))));line-height:var(--bkbg-brc-sub-line-height-m,var(--bkbg-brc-sub-line-height-t,var(--bkbg-brc-sub-line-height-d,var(--bkbg-brc-sub-line-height,1.5))));letter-spacing:var(--bkbg-brc-sub-letter-spacing-m,var(--bkbg-brc-sub-letter-spacing-t,var(--bkbg-brc-sub-letter-spacing-d,var(--bkbg-brc-sub-letter-spacing,normal))));word-spacing:var(--bkbg-brc-sub-word-spacing-m,var(--bkbg-brc-sub-word-spacing-t,var(--bkbg-brc-sub-word-spacing-d,var(--bkbg-brc-sub-word-spacing,normal))))}}