/* FieldCharts design system. Built for phones on a job site: large tap
   targets, high contrast that holds up in sunlight, tabular numbers, no web
   fonts. Inlined into every page by the build. */
:root{
  --bg:#f5f3ee;--surface:#ffffff;--surface-2:#efece5;--ink:#15181b;--muted:#4b5359;--faint:#6b7378;
  --line:#d8d3c8;--line-strong:#b9b2a3;--accent:#d9480f;--accent-ink:#ffffff;--accent-soft:#fde8dc;
  --good:#1f7a4d;--warn:#9a5b00;--focus:#1c64f2;--row:#f9f8f4;--row-hi:#fff1e6;
  --radius:12px;--shadow:0 1px 2px rgba(0,0,0,.06),0 2px 8px rgba(0,0,0,.04);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#121417;--surface:#1a1d21;--surface-2:#23272c;--ink:#f1efe8;--muted:#b8bec3;--faint:#99a0a6;
  --line:#2e3338;--line-strong:#454c53;--accent:#ff7a3d;--accent-ink:#121417;--accent-soft:#3a2418;
  --good:#5fcf95;--warn:#f0b35a;--focus:#7aa7ff;--row:#1e2125;--row-hi:#3a2418;
  --shadow:none;color-scheme:dark}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:16px;overflow-x:clip}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;font-variant-numeric:tabular-nums}
a{color:inherit;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:3px}
a:hover{color:var(--accent)}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.wrap{max-width:72rem;margin:0 auto;padding:0 16px}
.narrow{max-width:46rem}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip:focus{position:fixed;left:16px;top:8px;width:auto;height:auto;clip:auto;background:var(--surface);padding:8px 12px;z-index:10}
h1,h2,h3{line-height:1.2;letter-spacing:-.01em}
h1{font-size:clamp(1.75rem,4.4vw,2.6rem);margin:.2em 0 .3em}
h2{font-size:1.35rem;margin:1.8em 0 .5em}
h3{font-size:1.1rem;margin:1.4em 0 .4em}
p{margin:.6em 0}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;background:var(--surface-2);padding:.1em .35em;border-radius:6px}

/* Header */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.site-header .wrap{display:flex;align-items:center;gap:16px;min-height:56px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;letter-spacing:-.02em;text-decoration:none;flex:none}
.brand svg{width:28px;height:28px;flex:none}
.nav{display:flex;gap:4px;min-width:0;overflow-x:auto;scrollbar-width:none;flex:1;-webkit-mask-image:linear-gradient(90deg,#000 85%,transparent)}
.nav::-webkit-scrollbar{display:none}
.nav a{white-space:nowrap;text-decoration:none;padding:10px 12px;border-radius:8px;font-weight:600;font-size:.95rem;color:var(--muted)}
.nav a:hover,.nav a[aria-current=page]{color:var(--ink);background:var(--surface-2)}
.net{flex:none;font-size:.8rem;font-weight:700;padding:4px 10px;border-radius:999px;border:1px solid var(--line);color:var(--muted);white-space:nowrap}
.net[data-state=offline]{background:var(--accent-soft);color:var(--accent);border-color:transparent}
@media (max-width:640px){.net{display:none}.site-header .wrap{gap:8px}.brand span{display:none}th,td{padding:8px 8px}.card{padding:14px}}

/* Page */
main{padding:8px 0 48px}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:16px 0 0;font-size:.88rem;color:var(--faint)}
.crumbs li+li::before{content:"›";margin-right:6px}
.crumbs a{text-decoration:none}
.answer{font-size:1.15rem;color:var(--ink);margin:.2em 0 1.2em;max-width:52rem}
.answer strong{color:var(--accent)}
.grid{display:grid;gap:16px;grid-template-columns:minmax(0,1fr)}
.grid>*,.card,.fields>*{min-width:0}
@media (min-width:960px){.grid.two{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);align-items:start}}

/* Cards and tools */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.card h2{margin-top:0;font-size:1.1rem}
.tool{border:2px solid var(--ink)}
.tool-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}
.tool-head>div{display:flex;flex-wrap:wrap;gap:6px}
.tool-head h2{margin:0}
.fields{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
label{display:block;font-weight:700;font-size:.9rem;margin-bottom:4px}
.hint{display:block;font-weight:400;color:var(--faint);font-size:.82rem}
input,select{width:100%;font:inherit;font-size:1.15rem;padding:12px;min-height:52px;border:2px solid var(--line-strong);border-radius:10px;background:var(--surface);color:var(--ink)}
input:focus,select:focus{border-color:var(--ink);outline:none}
.seg{display:inline-flex;border:2px solid var(--line-strong);border-radius:10px;overflow:hidden}
.seg button{font:inherit;font-weight:700;font-size:.9rem;padding:8px 12px;min-height:44px;border:0;background:var(--surface);color:var(--muted);cursor:pointer}
.seg button[aria-pressed=true]{background:var(--ink);color:var(--bg)}
.result{margin-top:14px;padding:14px;border-radius:10px;background:var(--surface-2);display:grid;gap:4px}
.result .big{font-size:clamp(1.45rem,6vw,2.2rem);font-weight:800;line-height:1.15;overflow-wrap:anywhere}
.result .sub{color:var(--muted);font-size:.95rem}
.result[data-state=warn] .big{color:var(--warn)}
.btn{display:inline-flex;align-items:center;gap:8px;font:inherit;font-weight:700;padding:10px 16px;min-height:44px;border-radius:10px;border:2px solid var(--ink);background:var(--ink);color:var(--bg);cursor:pointer;text-decoration:none}
.btn.ghost{background:transparent;color:var(--ink)}
.btn:hover{opacity:.9;color:var(--bg)}
.btn.ghost:hover{color:var(--ink)}
.facts{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;margin:0;font-size:.95rem}
.facts dt{color:var(--faint);font-weight:600}
.facts dd{margin:0}
.pill{display:inline-block;font-size:.78rem;font-weight:800;padding:2px 8px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line)}
.pill.a2l{background:#fff3bf;color:#5c3c00;border-color:#f0d27a}
.pill.a3{background:#ffe3e3;color:#7a1010;border-color:#f3a6a6}
@media (prefers-color-scheme:dark){.pill.a2l{background:#3d3210;color:#ffe08a;border-color:#6b5716}.pill.a3{background:#3d1616;color:#ffb3b3;border-color:#6b2424}}

/* Tables */
.table-wrap{overflow:auto;max-width:100%;max-height:75vh;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:.95rem}
caption{text-align:left;font-weight:800;padding:12px 12px 8px;font-size:1rem;caption-side:top;white-space:normal}
th,td{padding:8px 12px;text-align:right;border-bottom:1px solid var(--line);white-space:nowrap}
th:first-child,td:first-child{text-align:left}
thead th{position:sticky;top:0;background:var(--surface-2);font-size:.82rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);z-index:1}
tbody tr:nth-child(even){background:var(--row)}
tbody tr.hit{background:var(--row-hi);outline:2px solid var(--accent);outline-offset:-2px}
.pt tr.minor{display:none}
.pt.all tr.minor{display:table-row}
.table-tools{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:space-between;margin:12px 0}
.table-tools input{max-width:320px;min-height:44px;font-size:1rem;padding:8px 12px}
.note{color:var(--faint);font-size:.85rem}
.prose table{margin:12px 0;border:1px solid var(--line)}
.prose td,.prose th{white-space:normal;text-align:left}

/* Article */
.prose{max-width:46rem}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin:.25em 0}
.sources ol{padding-left:1.3em;font-size:.92rem;color:var(--muted)}
.sources li{margin:.3em 0;overflow-wrap:anywhere}
.related ul,.linklist{list-style:none;padding:0;display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.related a,.linklist a{display:block;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface);text-decoration:none;font-weight:700;height:100%}
.related a:hover,.linklist a:hover{border-color:var(--ink);color:var(--ink)}
.linklist small{display:block;font-weight:400;color:var(--faint);margin-top:2px}
.datanote{font-size:.85rem;color:var(--faint);border-left:3px solid var(--line-strong);padding-left:10px;margin:16px 0}

/* Home */
.hero{padding:28px 0 8px}
.hero p{font-size:1.15rem;color:var(--muted);max-width:44rem}
.search{position:relative;max-width:36rem;margin:16px 0 8px}
.search input{padding-left:44px}
.search svg{position:absolute;left:14px;top:16px;width:20px;height:20px;color:var(--faint)}
.sections{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));margin-top:24px}
.sections h2{margin:0 0 8px;font-size:1.1rem}
.sections ul{list-style:none;margin:0;padding:0}
.sections li a{display:block;padding:8px 0;border-bottom:1px solid var(--line);text-decoration:none;font-weight:600}
.sections li:last-child a{border-bottom:0}

/* Footer */
.site-footer{border-top:1px solid var(--line);color:var(--muted);font-size:.9rem;padding:24px 0 40px;background:var(--surface)}
.site-footer nav{display:flex;flex-wrap:wrap;gap:4px 16px;margin-bottom:8px}
.site-footer nav a{text-decoration:none;font-weight:600;padding:6px 0}
.offline-save{margin:8px 0}

@media print{
  .site-header,.site-footer,.tool,.related,.table-tools,.no-print,.crumbs{display:none!important}
  body{background:#fff;color:#000;font-size:11pt}
  .table-wrap{max-height:none;overflow:visible;border:0}
  .pt tr.minor{display:table-row}
  thead th{position:static}
  a{text-decoration:none}
  .print-url{display:block!important}
}
.print-url{display:none;font-size:9pt;margin-top:8px}