.wos-bt{border:1px solid #e5e7eb;padding:16px;border-radius:14px;max-width:900px;margin:12px auto;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif}
.wos-bt__header{margin-bottom:8px}
.wos-bt__sub{color:#6b7280;margin:4px 0 0 0;font-size:14px}
.wos-bt__controls{display:flex;flex-direction:column;margin:8px 0 16px}
.wos-bt__controls input{max-width:240px;padding:8px;border:1px solid #d1d5db;border-radius:8px}
.wos-bt__hint{color:#6b7280;font-size:12px;margin-top:4px;display:block}
.wos-bt__scenarios{display:grid;grid-template-columns:1fr;gap:12px}
@media (min-width:800px){.wos-bt__scenarios{grid-template-columns:1fr 1fr}}
.wos-bt__scenario{border:1px solid #e5e7eb;border-radius:12px;padding:12px}
.wos-bt__row{display:grid;grid-template-columns:1fr;gap:8px}
@media (min-width:540px){.wos-bt__row{grid-template-columns:1fr 1fr 1fr}}
.wos-bt__scenario input{width:100%;padding:6px 8px;border:1px solid #d1d5db;border-radius:8px}
.wos-bt__sum{margin-top:6px;font-weight:600}
.wos-bt__sum--error{color:#b91c1c}
.wos-bt__out{margin-top:8px;display:grid;grid-template-columns:1fr 1fr;gap:4px;align-items:center}
.wos-bt__total{grid-column:1/-1;margin-top:4px}
.wos-bt__unused{grid-column:1/-1;color:#6b7280;font-size:12px}
.wos-bt__copy{margin-top:8px;padding:8px 10px;border-radius:10px;border:1px solid #d1d5db;background:#fff;cursor:pointer}
.wos-bt__copy:hover{background:#f9fafb}
.wos-bt__presets{margin-top:18px}
.wos-bt__preset-list{display:grid;grid-template-columns:1fr;gap:10px}
@media (min-width:720px){.wos-bt__preset-list{grid-template-columns:1fr 1fr}}
.wos-bt__preset{border:1px solid #e5e7eb;border-radius:12px;padding:10px;display:flex;flex-direction:column;gap:8px}
.wos-bt__preset-title{font-weight:700}
.wos-bt__preset-actions{display:flex;gap:8px;flex-wrap:wrap}
.wos-bt__preset-actions button{padding:6px 10px;border-radius:10px;border:1px solid #d1d5db;background:#fff;cursor:pointer}
.wos-bt__preset-actions button:hover{background:#f3f4f6}