/* ===================== TOOLS — calculators ===================== */
.fx-thead{padding-top:22px}
.fx-thead__end{margin-inline-start:auto}
.fx-calc{display:grid;grid-template-columns:1.15fr 1fr;gap:16px;padding:14px var(--fx-gutter) 10px;align-items:start}
.fx-calc__form{border:1px solid var(--fx-border);border-radius:16px;padding:18px 20px;background:var(--fx-surface);display:grid;grid-template-columns:1fr 1fr;gap:12px 14px;align-content:start}
.fx-calc__field{display:flex;flex-direction:column;gap:5px;font-size:12.5px;min-width:0}
.fx-calc__field.is-wide{grid-column:1/-1}
.fx-calc__field[hidden]{display:none}
.fx-calc__lbl{color:var(--fx-text-2);font-weight:600}
.fx-calc__hint{font-size:11px;color:var(--fx-faint);line-height:1.6}
.fx-calc__field .fx-input,.fx-calc__field .fx-select{padding:10px 13px;font-size:13.5px;width:100%}
.fx-calc__field .fx-select{padding-inline-end:30px;background-image:linear-gradient(45deg,transparent 50%,var(--fx-muted) 50%),linear-gradient(135deg,var(--fx-muted) 50%,transparent 50%);background-position:calc(100% - 16px) 50%,calc(100% - 11px) 50%;background-size:5px 5px;background-repeat:no-repeat;font-weight:500}
.fx-calc__inline{display:flex;gap:8px;align-items:center}
.fx-calc__inline .fx-input{flex:1}
.fx-calc__seg{display:flex;border:1px solid var(--fx-border);border-radius:10px;overflow:hidden;background:var(--fx-surface);position:relative}
.fx-calc__seg label{flex:1;min-width:0}
.fx-calc__seg input{position:absolute;opacity:0;pointer-events:none;width:0;height:0}
.fx-calc__seg span{display:block;text-align:center;padding:9px 4px;font-size:12px;color:var(--fx-text-2);cursor:pointer;border-inline-start:1px solid var(--fx-border);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fx-calc__seg label:first-child span{border-inline-start:0}
.fx-calc__seg input:checked+span{background:var(--fx-primary);color:#fff;font-weight:600}
.fx-calc__check{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--fx-text-2);grid-column:1/-1;cursor:pointer}
.fx-calc__check input{accent-color:var(--fx-primary);width:15px;height:15px;margin:0}
.fx-calc__group{grid-column:1/-1;font-size:11.5px;font-weight:700;color:var(--fx-muted);border-top:1px solid var(--fx-hair);padding-top:10px;margin-top:2px}
.fx-calc__out{border:1px solid var(--fx-tint-border);background:var(--fx-tint-bg);border-radius:16px;padding:18px 20px;display:flex;flex-direction:column;gap:6px;position:sticky;top:12px}
.fx-calc__big{display:flex;flex-direction:column;gap:2px;padding-bottom:12px;border-bottom:1px solid var(--fx-tint-border);margin-bottom:4px}
.fx-calc__big-l{font-size:12px;color:var(--fx-muted)}
.fx-calc__big-v{font-family:var(--fx-font-mono);font-size:34px;font-weight:600;color:var(--fx-primary-dark);direction:ltr;text-align:right;line-height:1.3;overflow-wrap:anywhere}
.fx-calc__big-v.fx-up{color:var(--fx-green-2)}.fx-calc__big-v.fx-down{color:var(--fx-red)}
.fx-calc__big-s{font-size:12px;color:var(--fx-text-2)}
.fx-calc__pair{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.fx-calc__pair .fx-calc__big{border-bottom:0;margin-bottom:0;padding-bottom:6px}
.fx-calc__pair .fx-calc__big-v{font-size:24px}
.fx-calc__row{display:flex;justify-content:space-between;align-items:baseline;gap:10px;font-size:12.5px;padding:5px 0;border-bottom:1px dashed var(--fx-tint-border)}
.fx-calc__row span{color:var(--fx-text-2)}
.fx-calc__row small{display:block;font-size:10.5px;color:var(--fx-faint)}
.fx-calc__row strong{font-weight:600;font-size:13px;text-align:left;overflow-wrap:anywhere}
.fx-calc__row.is-main strong{color:var(--fx-primary-dark);font-size:14px}
.fx-calc__warn{background:var(--fx-orange-bg);color:var(--fx-orange);border-radius:10px;padding:9px 12px;font-size:12px;line-height:1.8;margin-top:4px}
.fx-calc__warn[hidden]{display:none}
.fx-calc__src{margin-top:8px;font-size:10.5px}
.fx-calc__table{width:100%;border-collapse:collapse;font-size:12px;margin-top:6px}
.fx-calc__table th{font-weight:600;color:var(--fx-muted);text-align:right;padding:6px 4px;border-bottom:1px solid var(--fx-tint-border);font-size:11px}
.fx-calc__table td{padding:6px 4px;border-bottom:1px dashed var(--fx-tint-border)}
.fx-calc__table .fx-mono{text-align:left}
.fx-calc__syminfo{font-size:10.5px;color:var(--fx-faint);font-family:var(--fx-font-mono);direction:ltr;text-align:left;margin-top:4px}
.fx-tguide{padding:14px var(--fx-gutter) 10px;display:grid;grid-template-columns:2fr 1fr;gap:16px;align-items:start}
.fx-tguide .fx-prose{font-size:13.5px}
.fx-tguide .fx-prose h2{font-size:19px;margin:22px 0 8px}
.fx-tguide .fx-prose h2:first-child{margin-top:0}
.fx-tguide__side{display:flex;flex-direction:column;gap:12px;position:sticky;top:12px}
.fx-calc__formula{background:var(--fx-fill);border-radius:10px;padding:10px 14px;font-family:var(--fx-font-mono);font-size:12px;direction:ltr;text-align:left;overflow-x:auto;margin:0 0 14px}
/* spread compare table */
.fx-sprd{padding:10px var(--fx-gutter)}
.fx-sprd__bar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:12px;font-size:12.5px}
.fx-sprd__bar .fx-input{width:110px;padding:8px 12px}
.fx-sprd table{width:100%;border-collapse:collapse;font-size:12.5px;background:var(--fx-surface);border:1px solid var(--fx-border);border-radius:14px;overflow:hidden}
.fx-sprd th{background:var(--fx-fill);font-weight:600;color:var(--fx-text-2);text-align:right;padding:10px 12px;font-size:11.5px;white-space:nowrap}
.fx-sprd td{padding:10px 12px;border-top:1px solid var(--fx-hair);vertical-align:middle}
.fx-sprd tr.is-best td{background:var(--fx-green-bg)}
.fx-sprd__b{display:flex;align-items:center;gap:9px;font-weight:700;white-space:nowrap}
.fx-sprd__b img{width:26px;height:26px;border-radius:7px;object-fit:cover}
.fx-sprd__acc{font-size:11.5px;color:var(--fx-muted)}
.fx-sprd .fx-mono{text-align:left;white-space:nowrap}
.fx-sprd__wrap{overflow-x:auto}
@media (max-width:1100px){.fx-calc,.fx-tguide{grid-template-columns:1fr}.fx-calc__out,.fx-tguide__side{position:static}}
@media (max-width:768px){.fx-calc{padding:10px 16px}.fx-calc__form{grid-template-columns:1fr;padding:14px}.fx-calc__big-v{font-size:28px}.fx-tguide{padding:10px 16px}.fx-sprd{padding:10px 16px}.fx-sprd table{min-width:700px}}
/* batch 2 */
.fx-calc__table tr.is-hl td{background:var(--fx-tint);font-weight:700}
.fx-pivot tr.is-p td{font-weight:700;color:var(--fx-primary-dark);background:var(--fx-tint)}
.fx-pivot tr.is-r td{color:var(--fx-red)}.fx-pivot tr.is-s td{color:var(--fx-green-2)}
.fx-pivot td:first-child,.fx-pivot th:first-child{text-align:right}
.fx-mc{width:100%;height:220px;display:block;background:var(--fx-surface);border-radius:10px;border:1px solid var(--fx-border);margin-top:6px}
.fx-calc__two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:768px){.fx-calc__two{grid-template-columns:1fr}}