:root{--violet:#6b46ff;--border:#e5e7eb;--muted:#6b7280;--bg:#fff}
.bc-j2c{max-width:980px;margin:0 auto;padding:24px;color:#111;background:var(--bg)}
.bc-j2c__title{font-size:32px;font-weight:800;margin:0 0 8px}
.bc-j2c__subtitle{color:var(--muted);margin:0 0 24px}
.bc-j2c__inputs{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:12px}
.bc-j2c__label{font-size:14px;color:var(--muted);display:block;margin-bottom:6px}
.bc-j2c__input{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;background:#fff;color:#111}
.bc-j2c__textarea{width:100%;min-height:160px;padding:12px 14px;border:1px solid var(--border);border-radius:10px;resize:vertical;background:#fff;color:#111}
.bc-j2c__file{display:block}
.bc-j2c__hint{color:var(--muted);font-size:12px}
.bc-j2c__detect{margin-top:8px;background:#fff;border:1px solid var(--border);border-radius:10px;padding:8px 12px;color:#000;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.bc-j2c__options{display:flex;flex-wrap:wrap;gap:12px;align-items:center;background:var(--bg);border:1px solid var(--border);padding:12px 14px;border-radius:12px;margin:12px 0}
.bc-j2c__opt{display:flex;flex-direction:column;gap:6px}
.bc-j2c__opt--wide{flex:1;min-width:260px}
.bc-j2c__select{padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:#fff;color:#111}
.bc-j2c__checkbox{display:flex;align-items:center;gap:6px}
.bc-j2c__btn{background:var(--violet);color:#fff;border:0;border-radius:10px;padding:10px 14px;cursor:pointer;font-weight:600;box-shadow:0 1px 2px rgba(0,0,0,.06);transition:background .15s ease,transform .02s ease}
.bc-j2c__btn:hover{filter:brightness(.95)}
.bc-j2c__btn:active{transform:translateY(1px)}
.bc-j2c__btn--ghost{background:#f8f9fb;color:#111;border:1px solid var(--border)}
.bc-j2c__cols{border:1px dashed var(--border);border-radius:12px;padding:12px;margin-top:8px;background:#fff}
.bc-j2c__cols-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.bc-j2c__cols-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.bc-j2c__col{display:flex;align-items:center;gap:8px;border:1px solid var(--border);border-radius:10px;padding:8px 10px;background:#fff;cursor:grab}
.bc-j2c__col input{margin-right:4px}
.bc-j2c__col .drag{cursor:grab;user-select:none}
.bc-j2c__results{border:1px solid var(--border);border-radius:12px;margin-top:12px;overflow:hidden;background:#fff}
.bc-j2c__toolbar{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-bottom:1px solid var(--border);background:#fff}
.bc-j2c__actions{display:flex;gap:8px}
.bc-j2c__output{min-height:260px;border:0;border-radius:0 0 12px 12px;background:#fff;color:#111}
.bc-j2c__msg{margin-top:10px;color:#b91c1c}