.mpcb{box-sizing:border-box;width:100%;max-width:100%;margin:12px auto;padding:12px;background:#fff;border:1px solid #e3e3e3;border-radius:8px;font-family:Arial,sans-serif;color:#222}
.mpcb *{box-sizing:border-box}
.mpcb-toolbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;margin:0 auto 12px}
.mpcb-colors{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:7px;padding:8px 12px;background:#eee;border-radius:28px}
.mpcb-swatch{width:27px;height:27px;border:2px solid #fff;border-radius:50%;background:var(--swatch);box-shadow:0 0 0 1px #aaa;cursor:pointer;padding:0}
.mpcb-swatch.is-selected{box-shadow:0 0 0 2px #333;transform:scale(1.08)}
.mpcb-custom-label{display:inline-flex;width:29px;height:29px;overflow:hidden;border-radius:50%;border:1px solid #aaa;cursor:pointer}
.mpcb-custom-color{width:40px;height:40px;margin:-6px;border:0;padding:0;cursor:pointer}
.mpcb-actions{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:7px}
.mpcb button{font:inherit}
.mpcb-tool,.mpcb-undo,.mpcb-clear,.mpcb-download{border:1px solid #bbb;border-radius:5px;padding:7px 11px;background:#f7f7f7;color:#222;cursor:pointer}
.mpcb-tool.is-active{background:#155ca0;border-color:#155ca0;color:#fff}
.mpcb button:disabled{opacity:.45;cursor:not-allowed}
.mpcb-size{display:flex;align-items:center;gap:5px;font-size:13px}
.mpcb-brush-size{width:85px}
.mpcb-size output{min-width:15px;text-align:center}
.mpcb-stage{position:relative;display:flex;justify-content:center;align-items:center;min-height:140px;width:100%;overflow:hidden;background:#fff}
.mpcb-canvas{display:block;max-width:100%;height:auto;touch-action:none;cursor:crosshair}
.mpcb-loading{padding:28px;color:#666;font-size:14px}
.mpcb-source{display:none!important}
.mpcb-status{min-height:18px;text-align:center;color:#666;font-size:12px;margin-top:5px}
.mpcb-error{padding:10px;color:#a00;background:#fff4f4}
@media(max-width:600px){.mpcb{padding:8px}.mpcb-toolbar{gap:8px}.mpcb-colors{gap:6px;padding:7px 9px}.mpcb-swatch{width:25px;height:25px}.mpcb-actions{gap:5px}.mpcb-tool,.mpcb-undo,.mpcb-clear,.mpcb-download{padding:7px 9px;font-size:13px}}