:root{
  --forest:#1E4522;
  --green:#2C5F2E;
  --green-tint:#EAF0E8;
  --ti:#7C8A83;
  --ti-light:#DDE3DE;
  --steel:#F1F3F0;
  --paper:#FBFCFA;
  --ink:#141A15;
  --amber:#A8681B;
  --rust:#8C4A22;
  --shadow:0 1px 0 rgba(20,26,21,.06);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"Public Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;line-height:1.5;
}
.wrap{max-width:660px;margin:0 auto;padding:0 20px}

/* ---------- masthead ---------- */
.mast{background:var(--forest);color:#fff;padding:14px 0}
.mast .wrap{display:flex;align-items:center;gap:12px}
.mark{
  width:26px;height:26px;flex:none;border-radius:3px;
  background:linear-gradient(150deg,#C9D2CB,#79857D 55%,#AEB8B1);
  box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.35);
}
.mast b{font-family:Archivo,sans-serif;font-weight:700;font-size:15px;letter-spacing:.01em}
.mast a{color:#fff;text-decoration:none;display:flex;align-items:center;gap:12px}
.mast span{color:#A9BDAB;font-size:13px;margin-left:auto}

/* ---------- headings ---------- */
h1{
  font-family:Archivo,sans-serif;font-weight:800;letter-spacing:-.025em;
  font-size:clamp(2.3rem,10vw,3.1rem);line-height:1.02;margin:26px 0 6px;
}
h2{font-family:Archivo,sans-serif;font-weight:700;font-size:1.15rem;letter-spacing:-.01em;margin:36px 0 10px}
h3{font-family:Archivo,sans-serif;font-weight:600;font-size:.95rem;margin:0 0 6px}
.sub{color:var(--ti);font-size:.95rem;margin:0 0 4px}
.cat{
  display:inline-block;font-size:.8rem;color:var(--green);background:var(--green-tint);
  border-radius:999px;padding:3px 11px;margin:8px 0 0;font-weight:600;
}
p.lede{font-family:Newsreader,Georgia,serif;font-size:1.08rem;line-height:1.55;color:#3A423B}

/* ---------- step blocks ---------- */
.step{border-top:2px solid var(--ink);padding:16px 0 22px;margin-top:24px}
.step-h{display:flex;align-items:baseline;gap:10px;margin-bottom:14px}
.step-n{
  font-family:Archivo,sans-serif;font-weight:800;font-size:.85rem;color:#fff;
  background:var(--forest);border-radius:4px;padding:2px 8px;flex:none;
}
.step-h h2{margin:0;font-size:1.15rem}

label.f{display:block;font-size:.85rem;color:var(--ti);margin:0 0 5px;font-weight:600}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row>div{flex:1 1 140px}
select,input[type=number],input[type=search]{
  width:100%;font:inherit;font-size:1.05rem;padding:12px 12px;
  border:1.5px solid var(--ti-light);border-radius:8px;background:#fff;color:var(--ink);
  -webkit-appearance:none;appearance:none;
}
select{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237C8A83' stroke-width='2' fill='none'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 13px center;padding-right:34px}
select:focus,input:focus{outline:3px solid var(--green);outline-offset:1px;border-color:var(--green)}

a.startcard{
  display:flex;align-items:center;gap:14px;text-decoration:none;color:inherit;
  background:var(--green-tint);border:1.5px solid #C8D8C6;border-radius:12px;
  padding:16px 16px;margin:22px 0 4px;
}
a.startcard .n{
  font-family:Archivo,sans-serif;font-weight:800;font-size:1.05rem;color:var(--forest);
}
a.startcard .d{display:block;color:#4C5A4E;font-size:.88rem;margin-top:2px;line-height:1.4}
a.startcard .go{margin-left:auto;color:var(--green);font-size:1.5rem;line-height:1}
a.startcard:hover,a.startcard:focus-visible{border-color:var(--green)}
a.firsttime{
  display:inline-block;margin:14px 0 0;color:var(--green);font-weight:600;
  font-size:.86rem;text-decoration:none;border-bottom:1.5px solid #C8D8C6;padding-bottom:2px;
}
.about{margin:22px 0 6px}
.about h3{
  font-family:Archivo,sans-serif;font-weight:800;font-size:1.05rem;
  letter-spacing:-.01em;color:var(--forest);margin:24px 0 9px;
}
.about h3::before{
  content:"";display:block;width:34px;height:3px;border-radius:2px;
  background:var(--green);margin-bottom:9px;
}
.about h3:first-child{margin-top:4px}
.about p{
  font-family:Newsreader,Georgia,serif;font-size:1.05rem;line-height:1.55;
  color:#3A423B;margin:0;
}
.rufo{
  margin-top:16px;border-top:1px solid var(--ti-light);padding-top:14px;
  font-size:.74rem;line-height:1.5;color:#7A827B;
}
.rufo b{color:#59615A;font-family:Archivo,sans-serif;font-size:.74rem;letter-spacing:.02em}
.routes{display:flex;gap:8px;margin:0 0 16px}
.routes button{
  flex:1;font:inherit;font-weight:600;font-size:1rem;padding:11px 8px;cursor:pointer;
  border:1.5px solid var(--ti-light);background:#fff;color:var(--ti);border-radius:8px;
  font-family:Archivo,sans-serif;
}
.routes button[aria-pressed=true]{background:var(--forest);border-color:var(--forest);color:#fff}
.fixed{
  font-size:1.05rem;padding:12px;border:1.5px dashed var(--ti-light);border-radius:8px;
  background:var(--steel);color:var(--ink);font-variant-numeric:tabular-nums;
}
.guide{margin-top:14px;border-left:3px solid var(--ti-light);padding:2px 0 2px 14px}
.guide p{margin:0 0 7px;font-size:.93rem;color:#3A423B}
.guide p:last-child{margin:0}
.guide b{font-family:Archivo,sans-serif;font-size:.78rem;color:var(--ti);display:block;margin-bottom:1px}
.conc{
  margin-top:14px;background:var(--steel);border-radius:8px;padding:12px 14px;
  font-size:.95rem;color:#3A423B;
}
.conc b{font-family:Archivo,sans-serif;font-variant-numeric:tabular-nums;color:var(--ink)}

/* ---------- the answer ---------- */
.answer{background:var(--forest);color:#fff;border-radius:12px;padding:20px 18px 14px;margin-top:16px}
.answer .big{
  font-family:Archivo,sans-serif;font-weight:800;font-variant-numeric:tabular-nums;
  font-size:clamp(2.6rem,14vw,3.6rem);line-height:1;letter-spacing:-.03em;
}
.answer .big em{font-style:normal;font-size:.34em;font-weight:600;color:#B6C9B8;margin-left:8px;letter-spacing:0}
.answer .ml{color:#B6C9B8;font-size:.92rem;margin-top:6px;font-variant-numeric:tabular-nums}
svg.syringe{display:block;width:100%;height:auto;margin-top:14px}
.flag{
  margin-top:12px;background:#FFF4E2;color:#6B4310;border-left:4px solid var(--amber);
  padding:10px 12px;border-radius:0 6px 6px 0;font-size:.9rem;
}
.flag:empty{display:none}

/* ---------- tables ---------- */
table{width:100%;border-collapse:collapse;margin-top:10px;font-size:.93rem}
th{
  text-align:left;font-family:Archivo,sans-serif;font-weight:700;font-size:.78rem;
  color:var(--ti);padding:0 10px 7px 0;border-bottom:1.5px solid var(--ti-light);
}
td{padding:11px 10px 11px 0;border-bottom:1px solid var(--ti-light);vertical-align:top}
td:first-child{font-weight:600}
tr td:nth-child(2){font-variant-numeric:tabular-nums;white-space:nowrap}
.tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
@media (max-width:600px){
  .tbl-scroll table,.tbl-scroll tbody,.tbl-scroll tr,.tbl-scroll td{display:block;width:100%}
  .tbl-scroll thead{position:absolute;left:-9999px}
  .tbl-scroll tr{border-bottom:1px solid var(--ti-light);padding:14px 0}
  .tbl-scroll tr:last-child{border-bottom:0}
  .tbl-scroll td{border:0;padding:3px 0;display:flex;gap:10px;align-items:baseline}
  .tbl-scroll td::before{
    content:attr(data-label);flex:0 0 88px;color:var(--ti);font-size:.76rem;
    font-family:Archivo,sans-serif;font-weight:700;line-height:1.5;
  }
  .tbl-scroll td:first-child{
    font-family:Archivo,sans-serif;font-weight:700;font-size:1.02rem;margin-bottom:5px;display:block;
  }
  .tbl-scroll td:first-child::before{display:none}
  .tbl-scroll tr td:nth-child(2){white-space:normal}
}

/* ---------- notes ---------- */
ul.notes{list-style:none;padding:0;margin:10px 0 0}
ul.notes li{
  display:flex;gap:11px;padding:12px 0;border-bottom:1px solid var(--ti-light);
  font-family:Newsreader,Georgia,serif;font-size:1.02rem;line-height:1.5;
}
.dot{width:11px;height:11px;border-radius:50%;flex:none;margin-top:7px}
.t-green{background:#3F8A43}.t-yellow{background:#D2A22A}.t-orange{background:#C4762C}
.tier-key{display:flex;gap:16px;flex-wrap:wrap;font-size:.82rem;color:var(--ti);margin-top:12px}
.tier-key span{display:flex;align-items:center;gap:6px}
.tier-key i{width:9px;height:9px;border-radius:50%;display:block}

/* ---------- index ---------- */
.search{margin:20px 0 4px}
.group{margin-top:30px}
.group h2{margin-bottom:4px}
a.card{
  display:flex;align-items:center;gap:14px;text-decoration:none;color:inherit;
  padding:15px 4px;border-bottom:1px solid var(--ti-light);
}
a.card:hover .nm,a.card:focus-visible .nm{color:var(--green)}
a.card .nm{font-family:Archivo,sans-serif;font-weight:700;font-size:1.05rem}
a.card .dt{color:var(--ti);font-size:.85rem;margin-top:1px}
a.card .go{margin-left:auto;color:var(--ti-light);font-size:1.4rem;line-height:1}

/* ---------- misc ---------- */
.backlink{display:inline-block;margin:18px 0 0;color:var(--green);font-size:.9rem;text-decoration:none;font-weight:600}
footer{margin:56px 0 0;background:var(--steel);padding:26px 0 40px;font-size:.85rem;color:#59615A}
footer p{margin:0 0 10px}
footer a{color:var(--green)}
.disclaimer{border-top:1px solid var(--ti-light);padding-top:14px;margin-top:14px;font-size:.78rem;color:#7A827B}
:focus-visible{outline:3px solid var(--green);outline-offset:2px;border-radius:3px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
@media print{
  .mast,footer,.backlink{display:none}
  body{font-size:11pt}.answer{background:#fff;color:#000;border:2px solid #000}
  .answer .big em,.answer .ml{color:#333}
}