/* Calculators. Shared foundation lives in styles.css. */
.tool-page{padding-top:56px;padding-bottom:96px}
.tool-page .breadcrumb{margin-bottom:20px}
.tool-page h1{margin:0 0 16px;font-size:clamp(40px,6vw,64px);line-height:1}
.tool-page .lead{margin:0 0 32px}
.tool-grid{display:grid;grid-template-columns:minmax(0,420px) minmax(0,1fr);gap:24px;align-items:start;margin-bottom:56px}
@media (max-width:860px){.tool-grid{grid-template-columns:minmax(0,1fr)}}
.tool-form,.tool-out{background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:24px;min-width:0}
.tool-form{display:flex;flex-direction:column;gap:16px}
.tool-field{display:flex;flex-direction:column;gap:6px;min-width:0}
.tool-field label,.tool-legend{font-size:14px;font-weight:600}
.tool-field .hint{font-size:13px;color:var(--ink55)}
.tool-input{width:100%;min-height:44px;font:inherit;font-size:16px;color:var(--ink);background:var(--surface-alt);border:1px solid var(--ink15);border-radius:12px;padding:8px 12px}
.tool-input:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.tool-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.tool-fieldset{border:0;margin:0;padding:0;min-width:0}
.xirr-rows{display:flex;flex-direction:column;gap:10px;margin:8px 0 0}
.xirr-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) 44px;gap:8px;align-items:center}
.tool-icon-btn{min-height:44px;width:44px;border:1px solid var(--line);border-radius:12px;background:var(--surface-alt);color:var(--ink70);font:inherit;font-size:20px;line-height:1;cursor:pointer}
.tool-icon-btn:hover{color:var(--accent-text);border-color:var(--accent)}
.tool-actions{display:flex;flex-wrap:wrap;gap:10px}
.tool-actions .btn{border:0;font:inherit;font-weight:600;cursor:pointer}
.tool-actions .btn.ghost{border:1px solid var(--line)}
.tool-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,150px),1fr));gap:12px;margin-bottom:20px}
.tool-stat{background:var(--surface-alt);border:1px solid var(--line);border-radius:16px;padding:14px 16px;min-width:0}
.tool-stat.hi{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.tool-stat-label{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;opacity:.75}
.tool-stat-value{font-size:24px;font-weight:600;letter-spacing:-.02em;overflow-wrap:anywhere}
.tool-error{margin:0;padding:14px 16px;border-radius:14px;background:var(--red-soft);color:var(--red)}
.tool-out .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;max-height:420px;overflow-y:auto}
.tool-out table{border-collapse:collapse;width:100%;min-width:420px;font-size:14px}
.tool-out caption{text-align:left;padding:12px 14px;font-weight:600}
.tool-out th{padding:10px 14px;text-align:left;color:var(--ink55);font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;font-weight:500;position:sticky;top:0;background:var(--surface)}
.tool-out td{padding:9px 14px;border-top:1px solid var(--line)}
.tool-out .num{text-align:right;font-family:var(--mono)}
.tool-page .prose{max-width:720px}
.tool-page .prose .related{display:flex;flex-wrap:wrap;gap:8px}
.tool-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:16px;margin-bottom:56px}
.tool-cards a.card{text-decoration:none;color:var(--ink);display:flex;flex-direction:column;gap:10px}
.tool-cards a.card:hover{border-color:var(--accent)}
.tool-cards h2{margin:0;font-size:22px;letter-spacing:-.02em}
.tool-cards p{margin:0;color:var(--ink70);font-size:16px}