/* Comtec Labs engineering tools (pcb-engineering-tools and the tool pages, 2026-10-10). Shared .tool-* classes on
   top of theme/comtec.css (its tokens: --ink, --gold, --gold-text, --cream, --line). The site has no dark theme,
   so neither do the tools. Static file with a one-year immutable cache: bump ?v= in every page that links it. */
.tool-page .section{padding-left:clamp(16px,4vw,56px);padding-right:clamp(16px,4vw,56px)}
.tool-wrap{max-width:1180px;margin:auto}
.tool-intro{max-width:820px;margin:0 0 30px;font-size:16px;line-height:1.75;color:#3d5060}
.tool-intro p{margin:0 0 1em}
.tool-intro a:not(.btn),.tool-note a,.tool-explain a{color:var(--gold-text);text-decoration:underline;text-underline-offset:3px}

/* privacy / assumption badges */
.tool-badge{display:inline-flex;align-items:center;gap:8px;margin:0 0 22px;padding:8px 14px;border:1px solid rgba(138,100,38,.35);border-radius:22px;background:#fbf6ec;font-size:13px;line-height:1.4;color:var(--ink)}
.tool-badge:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gold);flex:none}

/* in-page navigation between calculators */
.tool-nav{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 30px;padding:0;list-style:none}
.tool-nav a{display:inline-block;padding:9px 16px;border:1px solid rgba(16,39,59,.3);border-radius:22px;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;transition:.2s}
.tool-nav a:hover,.tool-nav a:focus-visible{border-color:var(--gold);color:var(--gold-text)}

/* a tool block */
.tool-panel{background:#fff;border-radius:3px;box-shadow:0 10px 30px rgba(7,21,34,.08);padding:clamp(18px,3vw,34px);margin:0 0 34px;scroll-margin-top:90px}
.tool-panel>h2{font-size:clamp(22px,2.2vw,30px);margin:0 0 8px;font-weight:500}
.tool-panel>.tool-sub{margin:0 0 22px;color:#536575;font-size:15px;line-height:1.6;max-width:760px}
.tool-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(20px,3vw,40px);align-items:start}
.tool-form{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:16px 18px;margin:0}
.tool-form fieldset{grid-column:1/-1;display:grid;grid-template-columns:inherit;gap:inherit;margin:0;padding:0;border:0;min-width:0}
.tool-form legend{grid-column:1/-1;padding:0;margin:8px 0 2px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:700;color:var(--gold-text)}
.tool-field{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:600;color:var(--ink);min-width:0}
.tool-field>span{line-height:1.35}
.tool-field input,.tool-field select{font:inherit;font-size:15px;font-weight:400;width:100%;min-width:0;padding:10px 12px;border:1px solid rgba(16,39,59,.28);border-radius:3px;background:#fff;color:var(--ink)}
.tool-field input:focus,.tool-field select:focus{outline:2px solid var(--gold);outline-offset:1px;border-color:var(--gold)}
.tool-field input[aria-invalid=true]{border-color:#b3261e;background:#fff7f6}
.tool-field small{font-size:12px;font-weight:400;color:#5a6b78;line-height:1.4}
.tool-unit{font-weight:400;color:#5a6b78}
.tool-err{font-size:12px;font-weight:600;color:#b3261e}
.tool-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.tool-actions .btn{cursor:pointer;font-family:inherit;color:var(--ink)}

/* results */
.tool-result{background:var(--cream);border-top:2px solid var(--gold);border-radius:3px;padding:18px 20px}
.tool-result h3{margin:0 0 10px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-text)}
.tool-out{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:8px 0;border-bottom:1px solid var(--line);font-size:14px;color:#3d5060}
.tool-out:last-of-type{border-bottom:0}
.tool-out strong{font-size:17px;color:var(--ink);font-variant-numeric:tabular-nums;white-space:nowrap}
.tool-out.main strong{font-size:24px;font-weight:600}
.tool-out [data-state=ok]{color:#1d6b3a}
.tool-out [data-state=bad]{color:#b3261e}
.tool-warn{margin:12px 0 0;padding:10px 14px 10px 30px;background:#fff4e0;border-left:3px solid #c27c0e;font-size:13px;line-height:1.5;color:#4a3a1a}
.tool-warn li{margin:2px 0}
.tool-explain{margin-top:22px;font-size:14px;line-height:1.7;color:#3d5060}
.tool-explain summary{cursor:pointer;font-weight:600;color:var(--ink)}
.tool-explain summary:hover{color:var(--gold-text)}
.tool-explain p,.tool-explain ul{margin:.6em 0}
.tool-formula{display:block;margin:.6em 0;padding:10px 12px;background:#f3f1ea;border-radius:3px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;overflow-x:auto;white-space:pre}
.tool-note{font-size:13px;line-height:1.6;color:#5a6b78}

/* hub cards */
.tool-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;margin:0 0 40px;padding:0;list-style:none}
.tool-card{display:flex;flex-direction:column;gap:10px;height:100%;padding:24px 24px 26px;background:#fff;border-radius:3px;border-top:2px solid var(--gold);box-shadow:0 10px 30px rgba(7,21,34,.08);transition:.25s}
.tool-card:hover,.tool-card:focus-visible{transform:translateY(-3px);box-shadow:0 18px 40px rgba(7,21,34,.16)}
.tool-card .card-meta{justify-content:flex-start}
.tool-card h3{margin:0;font-size:19px;line-height:1.3;font-weight:600;color:var(--ink)}
.tool-card p{margin:0;font-size:14px;line-height:1.6;color:#536575;flex:1}
.tool-card .tool-go{font-size:13px;font-weight:600;color:var(--gold-text)}

/* file input / drop zone */
.tool-files{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:0 0 24px}
.tool-drop{position:relative;display:flex;flex-direction:column;gap:8px;padding:20px;border:2px dashed rgba(16,39,59,.25);border-radius:4px;background:#fbfaf7;transition:.2s}
.tool-drop.over{border-color:var(--gold);background:#fbf6ec}
.tool-drop h3{margin:0;font-size:16px;color:var(--ink)}
.tool-drop input[type=file]{font:inherit;font-size:14px;max-width:100%}
.tool-status{font-size:13px;line-height:1.5;color:#5a6b78;min-height:1.5em;overflow-wrap:anywhere}
.tool-status[data-state=ok]{color:#1d6b3a}
.tool-status[data-state=bad]{color:#b3261e}
.tool-map{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px;margin-top:6px}
.tool-map .tool-field{font-size:12px}
.tool-map .tool-field select,.tool-map .tool-field input{font-size:14px;padding:8px 10px}

/* summary counts, toolbar, tables */
.tool-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:0 0 18px}
.tool-stat{padding:14px 16px;background:#fff;border:1px solid var(--line);border-top:3px solid #9aa7b1;border-radius:3px}
.tool-stat strong{display:block;font-size:26px;font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums}
.tool-stat span{font-size:12px;letter-spacing:.08em;text-transform:uppercase;font-weight:600;color:#536575}
.tool-stat[data-state=added]{border-top-color:#2e7d4f}
.tool-stat[data-state=removed]{border-top-color:#b3261e}
.tool-stat[data-state=changed]{border-top-color:#c27c0e}
.tool-toolbar{display:flex;flex-wrap:wrap;gap:12px 18px;align-items:flex-end;margin:0 0 14px}
.tool-toolbar .tool-field{min-width:160px}
.tool-seg{display:inline-flex;border:1px solid rgba(16,39,59,.3);border-radius:22px;overflow:hidden}
.tool-seg label{position:relative}
.tool-seg input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer}
.tool-seg span{display:block;padding:9px 16px;font-size:13px;font-weight:600;color:var(--ink)}
.tool-seg input:checked+span{background:var(--ink);color:#fff}
.tool-seg input:focus-visible+span{outline:2px solid var(--gold);outline-offset:-2px}
.tool-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:3px;background:#fff;-webkit-overflow-scrolling:touch}
.tool-table{width:100%;border-collapse:collapse;font-size:13px;line-height:1.45}
.tool-table th,.tool-table td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tool-table thead th{position:sticky;top:0;background:#f3f1ea;font-size:12px;letter-spacing:.04em;color:var(--ink);white-space:nowrap}
.tool-table td:first-child{white-space:nowrap;font-weight:600}
.tool-table tr[data-state=added] td:first-child{color:#2e7d4f}
.tool-table tr[data-state=removed] td:first-child{color:#b3261e}
.tool-table tr[data-state=changed] td:first-child{color:#a05f00}
.tool-table tr[data-state=removed] td:not(:first-child){color:#7a8791;text-decoration:line-through}
.tool-table .tool-chg{background:#fff6e5}
.tool-table del{color:#b3261e}
.tool-table ins{color:#2e7d4f;text-decoration:none;font-weight:600}
.tool-table tfoot th,.tool-table tfoot td{font-weight:700;border-top:2px solid var(--ink);border-bottom:0}
.tool-table td.num,.tool-table th.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}

/* stacked cost bars */
.tool-bars{display:grid;gap:10px;margin:14px 0 4px}
.tool-barrow{display:grid;grid-template-columns:70px minmax(0,1fr);gap:10px;align-items:center;font-size:13px;font-weight:600}
.tool-bar{display:flex;height:18px;background:#eceae3;border-radius:2px;overflow:hidden}
.tool-bar span{display:block;height:100%}
.tool-legend{display:flex;flex-wrap:wrap;gap:6px 14px;margin:8px 0 0;padding:0;list-style:none;font-size:12px;color:#536575}
.tool-legend li{display:flex;align-items:center;gap:6px}
.tool-legend i{width:10px;height:10px;border-radius:2px;display:inline-block}
[data-c=purchase]{background:#10273b}[data-c=freight]{background:#3b6a8f}[data-c=duty]{background:#7aa3c2}
[data-c=customs]{background:#a9c3d6}[data-c=carrying]{background:#c89a55}[data-c=financing]{background:#e0b474}
[data-c=currency]{background:#8a6426}[data-c=quality]{background:#b3261e}[data-c=travel]{background:#6b7f8e}[data-c=nre]{background:#2e7d4f}
.tool-kpis{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:0 0 14px}
.tool-kpi{padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:3px}
.tool-kpi span{display:block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;font-weight:600;color:#536575}
.tool-kpi strong{display:block;margin-top:4px;font-size:24px;font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums}
.tool-kpi small{font-size:13px;color:#536575}
.tool-verdict{margin:0 0 8px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.5}

/* closing call to action inside a tool page */
.tool-cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px 30px;margin:10px 0 0;padding:24px clamp(18px,3vw,30px);background:#0b2133;color:#fff;border-radius:3px}
.tool-cta p{margin:0;max-width:680px;font-size:16px;line-height:1.6;color:#dfe6ec}
.tool-cta .btn{color:#fff}
.tool-cta .btn-solid{color:#111}

@media(max-width:900px){
  .tool-grid,.tool-files{grid-template-columns:minmax(0,1fr)}
  .tool-stats{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .tool-page .section{padding-left:16px;padding-right:16px}
  .tool-panel{padding:18px 16px}
  .tool-form{grid-template-columns:1fr 1fr;gap:14px 12px}
  .tool-kpis{grid-template-columns:1fr}
  .tool-out.main strong{font-size:21px}
}
@media(max-width:380px){.tool-form{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.tool-card,.tool-card:hover{transition:none;transform:none}}

/* inputs inside a table (landed cost) */
.tool-table input,.tool-table select{font:inherit;font-size:14px;width:100%;min-width:84px;padding:7px 9px;border:1px solid rgba(16,39,59,.28);border-radius:3px;background:#fff;color:var(--ink)}
.tool-table input:focus,.tool-table select:focus{outline:2px solid var(--gold);outline-offset:1px;border-color:var(--gold)}
.tool-table input[aria-invalid=true]{border-color:#b3261e;background:#fff7f6}
.tool-table tbody th{font-weight:600;color:var(--ink);min-width:150px}
.tool-table tbody th small{font-weight:400}
.tool-table .tool-err{display:block;margin-top:3px}
.tool-caption{caption-side:top;text-align:left;padding:10px;font-size:13px;color:#5a6b78}
.tool-gap{margin-top:14px}
.tool-h3{margin:28px 0 10px;font-size:18px;color:var(--ink)}