:root{
  --ink:#1f2925;
  --green:#1e5b4b;
  --green2:#2f7a65;
  --cream:#f7f4ec;
  --paper:#ffffff;
  --muted:#6c7671;
  --line:#dce4df;
  --soft:#edf5f1;
  --gold:#c99943;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--cream);
  color:var(--ink);
  font-family:Arial,Helvetica,sans-serif;
  line-height:1.82;
}
a{color:var(--green2);text-decoration:underline;text-underline-offset:3px}
.container{width:min(920px,92%);margin:auto}
.site-header{
  background:var(--paper);
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:20;
}
.header-inner{
  min-height:74px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{
  text-decoration:none;
  color:var(--ink);
  font-weight:800;
  font-size:19px;
}
.brand small{
  display:block;
  color:var(--muted);
  font-size:12px;
  font-weight:400;
}
.nav a{
  color:var(--ink);
  text-decoration:none;
  margin-left:18px;
  font-size:14px;
  font-weight:700;
}
.hero{
  background:linear-gradient(135deg,#173f35,#2d7562);
  color:#fff;
  padding:74px 0 62px;
}
.hero .eyebrow{
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:#cce4dc;
  font-weight:800;
}
.hero h1{
  font-family:Georgia,"Times New Roman",serif;
  font-size:clamp(42px,6vw,68px);
  line-height:1.05;
  margin:14px 0 20px;
}
.hero p{
  max-width:820px;
  color:#e5f1ed;
  font-size:20px;
}
.article{
  background:var(--paper);
  border:1px solid var(--line);
  margin:38px auto;
  padding:58px 70px;
}
.breadcrumb{
  font-size:13px;
  color:var(--muted);
  margin-bottom:22px;
}
h1,h2,h3{
  font-family:Georgia,"Times New Roman",serif;
  color:#173f35;
}
h1{
  font-size:clamp(38px,5vw,58px);
  line-height:1.12;
  margin:0 0 18px;
}
h2{
  font-size:32px;
  line-height:1.28;
  margin:48px 0 14px;
}
h3{
  font-size:23px;
  margin:30px 0 10px;
}
.lead{
  font-size:21px;
  color:#4d5b55;
}
.meta{
  color:var(--muted);
  font-size:13px;
  padding:12px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  margin:24px 0 28px;
}
.toc{
  background:var(--soft);
  border:1px solid var(--line);
  padding:22px 26px;
  margin:28px 0 34px;
}
.toc strong{color:#173f35}
.article p{margin:14px 0}
.article ul,.article ol{padding-left:24px}
.article li{margin:8px 0}
.note{
  background:#fff8e8;
  border-left:4px solid var(--gold);
  padding:18px 20px;
  margin:26px 0;
}
table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
}
th,td{
  border:1px solid var(--line);
  padding:13px;
  text-align:left;
}
th{background:var(--soft)}
.footer{
  text-align:center;
  color:var(--muted);
  padding:30px 0 42px;
  font-size:14px;
}
@media(max-width:760px){
  .article{padding:32px 24px;margin:18px auto}
  .nav{display:none}
  .hero{padding:52px 0}
}