:root{
  --pine:#17483b;
  --pine-dark:#0d3028;
  --lake:#2d6f89;
  --lake-dark:#1e5369;
  --sky:#e9f4f6;
  --sand:#f5efe2;
  --cream:#fffdf8;
  --ink:#1d2a27;
  --muted:#596864;
  --line:#d8e2dd;
  --white:#ffffff;
  --warning:#8a5a16;
  --max:1240px;
  --shadow:0 14px 36px rgba(13,48,40,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--cream);line-height:1.65}
img,svg{max-width:100%}
a{color:var(--lake-dark);text-decoration-thickness:.08em;text-underline-offset:.15em}
a:hover{color:var(--pine)}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--pine-dark);color:#fff;padding:.75rem 1rem;z-index:999}
.skip-link:focus{left:1rem;top:1rem}
.site-header{background:rgba(255,253,248,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;backdrop-filter:blur(10px)}
.header-inner{max-width:var(--max);margin:auto;padding:.75rem 1.1rem;display:flex;align-items:center;gap:1.25rem;justify-content:space-between}
.brand{display:flex;align-items:center;gap:.7rem;color:var(--pine-dark);text-decoration:none;font-weight:800;line-height:1.05}
.brand-mark{width:42px;height:42px;display:grid;place-items:center;background:linear-gradient(145deg,var(--pine),var(--lake));border-radius:12px;box-shadow:0 5px 14px rgba(13,48,40,.18)}
.brand-mark svg{width:30px;height:30px}
.brand-text small{display:block;font-size:.72rem;font-weight:650;letter-spacing:.05em;color:var(--muted);margin-top:.2rem}
.nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:9px;padding:.55rem .75rem;font-weight:700;color:var(--pine-dark)}
.main-nav ul{display:flex;align-items:center;gap:.15rem;list-style:none;margin:0;padding:0}
.main-nav a{display:block;padding:.55rem .7rem;border-radius:8px;text-decoration:none;color:var(--ink);font-weight:650;font-size:.94rem}
.main-nav a:hover,.main-nav a[aria-current="page"]{background:var(--sky);color:var(--pine-dark)}
.hero{background:
  radial-gradient(circle at 85% 20%,rgba(45,111,137,.18),transparent 28rem),
  linear-gradient(135deg,var(--sand),var(--sky));
  border-bottom:1px solid var(--line)}
.hero-inner{max-width:var(--max);margin:auto;padding:4.7rem 1.2rem 4.1rem;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:2.5rem;align-items:center}
.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-weight:800;font-size:.78rem;color:var(--lake-dark);margin:0 0 .65rem}
h1,h2,h3{line-height:1.18;color:var(--pine-dark)}
h1{font-size:clamp(2.3rem,6vw,4.4rem);letter-spacing:-.04em;margin:.2rem 0 1rem}
h2{font-size:clamp(1.55rem,3vw,2.25rem);letter-spacing:-.02em;margin-top:2.4rem}
h3{font-size:1.23rem;margin-top:1.7rem}
.lede{font-size:clamp(1.08rem,2vw,1.27rem);max-width:760px;color:#364b45}
.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.45rem}
.button{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.8rem 1.05rem;border-radius:9px;background:var(--pine);color:#fff;text-decoration:none;font-weight:750;border:1px solid var(--pine)}
.button:hover{background:var(--pine-dark);color:#fff}
.button.secondary{background:#fff;color:var(--pine-dark);border-color:#b8cbc2}
.hero-card{background:rgba(255,255,255,.82);border:1px solid rgba(23,72,59,.14);border-radius:18px;padding:1.3rem;box-shadow:var(--shadow)}
.hero-card h2{font-size:1.25rem;margin:.2rem 0 .8rem}
.hero-card ul{padding-left:1.2rem;margin:.4rem 0}
.wrap{max-width:var(--max);margin:auto;padding:2.8rem 1.2rem}
.narrow{max-width:860px}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:1rem;margin-bottom:1rem}
.section-heading h2{margin:0}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.05rem}
.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:1.2rem;box-shadow:0 7px 18px rgba(13,48,40,.05)}
.card h2,.card h3{margin:.15rem 0 .55rem}
.card p{margin:.35rem 0 .75rem}
.card a.stretched{text-decoration:none;font-weight:800}
.card .meta{font-size:.8rem;color:var(--muted);font-weight:750;text-transform:uppercase;letter-spacing:.06em}
.topic-icon{width:45px;height:45px;border-radius:12px;display:grid;place-items:center;background:var(--sky);font-size:1.35rem;margin-bottom:.8rem}
.band{background:var(--pine-dark);color:#fff}
.band h2,.band h3{color:#fff}
.band a{color:#d9f2ff}
.band .card{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.17);box-shadow:none}
.breadcrumbs{font-size:.9rem;color:var(--muted);margin-bottom:1.1rem}
.breadcrumbs a{color:var(--muted)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:2.2rem;align-items:start}
.article-header{padding:2.6rem 0 1.4rem;border-bottom:1px solid var(--line);margin-bottom:1.4rem}
.article-header h1{font-size:clamp(2.1rem,5vw,3.65rem)}
.article-meta{display:flex;flex-wrap:wrap;gap:.7rem 1rem;color:var(--muted);font-size:.92rem}
.article-body p{margin:0 0 1.05rem}
.article-body ul,.article-body ol{padding-left:1.3rem}
.quick-box,.note-box,.warning-box{border-radius:13px;padding:1rem 1.1rem;margin:1.4rem 0}
.quick-box{background:var(--sky);border:1px solid #c8dfe5}
.note-box{background:var(--sand);border:1px solid #e5d8bd}
.warning-box{background:#fff6e7;border:1px solid #ecd19f;color:#573e14}
.quick-box h2,.note-box h2,.warning-box h2{font-size:1.2rem;margin:.1rem 0 .55rem}
.checklist{list-style:none!important;padding:0!important}
.checklist li{position:relative;padding:.45rem 0 .45rem 2rem;border-bottom:1px solid var(--line)}
.checklist li::before{content:"✓";position:absolute;left:.25rem;top:.42rem;width:1.2rem;height:1.2rem;border-radius:50%;background:var(--pine);color:#fff;display:grid;place-items:center;font-size:.8rem;font-weight:900}
.sidebar{position:sticky;top:90px}
.sidebar .card{margin-bottom:1rem}
.sidebar ul{padding-left:1.05rem;margin:.5rem 0}
.sidebar li{margin:.45rem 0}
.toc a{text-decoration:none}
.tool-shell{background:#fff;border:1px solid var(--line);border-radius:17px;padding:1.25rem;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
label{font-weight:700;color:var(--pine-dark)}
input,select,textarea{width:100%;font:inherit;padding:.7rem .75rem;border:1px solid #b8c8c1;border-radius:8px;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus,button:focus{outline:3px solid rgba(45,111,137,.22);outline-offset:2px}
.field small{display:block;color:var(--muted);margin-top:.25rem}
.result-box{background:var(--sky);border:1px solid #c8dfe5;border-radius:13px;padding:1rem;margin-top:1rem}
.result-value{font-size:1.8rem;font-weight:850;color:var(--pine-dark)}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{text-align:left;padding:.75rem;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--sand);color:var(--pine-dark)}
.checkbox-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.55rem}
.check-item{display:flex;gap:.6rem;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:9px;padding:.7rem}
.check-item input{width:auto;margin-top:.25rem}
.progress{height:12px;background:#e4ece8;border-radius:999px;overflow:hidden}
.progress span{display:block;height:100%;background:var(--pine);width:0}
.pagination{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:1.5rem}
.pagination a{padding:.45rem .7rem;border:1px solid var(--line);border-radius:7px;text-decoration:none}
.site-footer{margin-top:3rem;background:#102d26;color:#dce9e4}
.footer-inner{max-width:var(--max);margin:auto;padding:2.5rem 1.2rem 1.4rem;display:grid;grid-template-columns:1.3fr repeat(2,1fr);gap:1.5rem}
.site-footer h2,.site-footer h3{color:#fff;font-size:1rem;margin-top:0}
.site-footer a{color:#dce9e4}
.site-footer ul{list-style:none;padding:0;margin:.4rem 0}
.site-footer li{margin:.35rem 0}
.copyright{max-width:var(--max);margin:auto;padding:1rem 1.2rem;border-top:1px solid rgba(255,255,255,.13);font-size:.85rem;color:#b9cbc4}
.disclosure{font-size:.85rem;color:var(--muted)}
.kicker{display:inline-block;background:var(--sand);color:var(--pine-dark);border-radius:999px;padding:.25rem .65rem;font-size:.78rem;font-weight:800}
.site-map-list{columns:2;column-gap:2rem}
.site-map-list li{break-inside:avoid;margin:.35rem 0}
@media (max-width:960px){
  .nav-toggle{display:block}
  .main-nav{position:absolute;left:0;right:0;top:100%;background:var(--cream);border-bottom:1px solid var(--line);display:none}
  .main-nav.open{display:block}
  .main-nav ul{display:block;padding:.5rem 1rem 1rem}
  .main-nav a{padding:.75rem}
  .hero-inner{grid-template-columns:1fr;padding-top:3.3rem}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-layout{grid-template-columns:1fr}
  .sidebar{position:static}
}
@media (max-width:650px){
  .brand-text span{font-size:.94rem}
  .brand-text small{display:none}
  .grid,.grid.two,.form-grid,.checkbox-list{grid-template-columns:1fr}
  .hero-inner{padding:2.8rem 1rem 3rem}
  .wrap{padding:2.2rem 1rem}
  .footer-inner{grid-template-columns:1fr}
  .section-heading{align-items:start;flex-direction:column}
  .site-map-list{columns:1}
  h1{font-size:2.25rem}
}
@media print{
  .site-header,.site-footer,.hero-actions,.nav-toggle,.sidebar,.button.no-print{display:none!important}
  body{background:#fff;color:#000}
  .wrap{max-width:none;padding:0}
  .card,.tool-shell,.result-box{box-shadow:none}
  a{color:#000;text-decoration:none}
}