:root{--fg:#1d2330;--muted:#5b6472;--bg:#fff;--alt:#f5f7fa;--brand:#0b5cad;--line:#e2e6ec;--warn:#fff4e5;--warnb:#f0a030;--note:#eef5ff;--noteb:#0b5cad;--verify:#fff0f0;--verifyb:#c62828}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--fg);background:var(--bg)}
.wrap{max-width:760px;margin:0 auto;padding:0 18px}
a{color:var(--brand)}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:6px}
.site-header{border-bottom:1px solid var(--line);background:#fff}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;min-height:56px;flex-wrap:wrap;gap:8px}
.brand{font-weight:700;font-size:1.15rem;text-decoration:none;color:var(--fg)}
.topnav a{margin-left:16px;text-decoration:none}
main{padding:24px 18px 48px}
h1{font-size:1.9rem;line-height:1.25;margin:.4em 0 .5em}
h2{font-size:1.35rem;margin:1.8em 0 .5em;padding-top:.3em;border-top:1px solid var(--line)}
h3{font-size:1.1rem;margin:1.3em 0 .4em}
code{background:var(--alt);padding:1px 5px;border-radius:4px;font-size:.92em;word-break:break-word}
.lede{font-size:1.1rem;color:#333}
.meta,.crumbs,.small{color:var(--muted);font-size:.9rem}
.note,.warn,.review-note{padding:12px 14px;border-left:4px solid var(--noteb);background:var(--note);border-radius:6px;margin:1em 0}
.warn{border-color:var(--warnb);background:var(--warn)}
.review-note{border-color:var(--line);background:var(--alt);font-size:.92rem;margin-top:2em}
.verify{display:inline;background:var(--verify);color:var(--verifyb);border:1px dashed var(--verifyb);padding:0 4px;border-radius:4px;font-size:.88em}
.aff-box{background:var(--alt);padding:10px 14px;border-radius:6px;font-size:.95rem}
.aff-placeholder{color:#8a2be2}
.toc{background:var(--alt);border-radius:8px;padding:12px 16px;margin:1.2em 0;font-size:.95rem}
.toc ol{margin:.4em 0 0;padding-left:1.2em}
table{width:100%;border-collapse:collapse;margin:1em 0;font-size:.93rem;display:block;overflow-x:auto}
th,td{border:1px solid var(--line);padding:8px;text-align:left;vertical-align:top}
th{background:var(--alt)}
.hero{padding:16px 0 8px}
.btn{display:inline-block;background:var(--brand);color:#fff;padding:10px 18px;border-radius:6px;text-decoration:none;font-weight:600}
.cards{display:grid;gap:14px}
.card{border:1px solid var(--line);border-radius:8px;padding:14px 16px}
.card h3{margin:0 0 .3em}.card p{margin:0;color:var(--muted);font-size:.95rem}
.site-footer{border-top:1px solid var(--line);background:var(--alt);padding:20px 0;font-size:.92rem}
.footnav a{display:inline-block;margin:0 14px 6px 0}
@media (min-width:700px){.cards{grid-template-columns:1fr 1fr}h1{font-size:2.2rem}}
/* related guides */
.related{margin-top:2.2em}
.related-h{font-size:1.2rem}
.card-tool{border-color:var(--noteb);background:var(--note)}
/* tools */
.tool-form{background:var(--alt);border:1px solid var(--line);border-radius:8px;padding:14px 16px;margin:1.2em 0}
.tool-form label{display:block;font-weight:600;margin:0 0 6px}
.tool-row{display:flex;gap:8px;flex-wrap:wrap}
.tool-form input{flex:1 1 220px;min-width:0;font:inherit;padding:9px 12px;border:1px solid #b9c1cc;border-radius:6px;background:#fff;color:var(--fg)}
.tool-form input:focus{outline:2px solid var(--brand);outline-offset:1px}
.tool-form .btn{border:0;cursor:pointer;font:inherit;font-weight:600}
.tool-form .btn:disabled{opacity:.6;cursor:wait}
.tool-more{margin-top:10px}
.tool-more summary{cursor:pointer;color:var(--brand)}
.tool-more input{width:100%;margin-bottom:4px}
.result{border:1px solid var(--line);border-left-width:4px;border-radius:8px;padding:10px 16px;margin:14px 0}
.result-pass{border-left-color:#2e7d32}.result-warn{border-left-color:var(--warnb)}.result-fail{border-left-color:var(--verifyb)}.result-info{border-left-color:var(--noteb)}
.result-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.result-head h3{margin:.3em 0}
.result ul{margin:.4em 0;padding-left:1.2em}
.badge{font-size:.8rem;font-weight:700;padding:2px 9px;border-radius:999px;white-space:nowrap}
.badge-pass{background:#e8f5e9;color:#1b5e20}.badge-warn{background:var(--warn);color:#8a4b00}.badge-fail{background:var(--verify);color:var(--verifyb)}.badge-info{background:var(--note);color:var(--noteb)}
code.record{display:block;white-space:pre-wrap;word-break:break-all;padding:8px 10px}
/* checklist */
.checklist{list-style:none;padding-left:0}
.checklist li{position:relative;padding:6px 0 6px 30px;border-bottom:1px solid var(--line)}
.checklist li::before{content:"";position:absolute;left:2px;top:10px;width:16px;height:16px;border:2px solid var(--muted);border-radius:3px}
.checklist .src{display:block;font-size:.85rem;color:var(--muted)}
.print-only{display:none}
@media print{
  .site-header,.site-footer,.toc,.crumbs,.no-print,.skip{display:none!important}
  body{font-size:9.5pt;line-height:1.3}
  .checklist-page .lede,.checklist-page .meta{display:none}
  .checklist .src{display:inline;margin-left:.4em;font-size:8.5pt}
  main{padding:0}
  .wrap{max-width:none}
  h1{font-size:16pt;margin:0 0 .2em}
  h2{font-size:11.5pt;margin:.6em 0 .15em;padding-top:0;border-top:0;break-after:avoid}
  .checklist{margin:0}
  .checklist li{break-inside:avoid;padding:2px 0 2px 22px}
  .checklist li::before{top:4px;width:12px;height:12px}
  a{color:inherit;text-decoration:none}
  .print-only{display:block}
}