:root{
  --navy:#14324a;
  --navy-2:#0f2538;
  --orange:#d97324;
  --orange-dark:#b85e1e;
  --cream:#fff7ec;
  --sky:#eaf6ff;
  --green:#3f7d58;
  --paper:#ffffff;
  --ink:#17212b;
  --muted:#556575;
  --border:#dbe3ea;
  --soft:#f6f9fb;
  --shadow:0 10px 30px rgba(20,50,74,.10);
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--soft);color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.65;overflow-x:hidden;text-rendering:optimizeLegibility}
a{color:#1d5f96;text-decoration-thickness:.08em;text-underline-offset:.18em}
a:hover{color:var(--orange-dark)}
img,svg,video{max-width:100%;height:auto}
.wrap{width:min(100% - 32px,1240px);margin-inline:auto}
@media (min-width:760px){.wrap{width:min(100% - 48px,1240px)}}
@media (min-width:1180px){.wrap{width:min(100% - 72px,1320px)}}
.skip-link{position:absolute;left:1rem;top:-50px;background:#fff;color:#000;padding:.7rem 1rem;border-radius:.5rem;z-index:1000}.skip-link:focus{top:1rem}
.site-header{background:linear-gradient(135deg,var(--navy),#204d6e);color:white;border-bottom:5px solid var(--orange)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 0;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:.8rem;color:white;text-decoration:none;min-width:min(100%,320px)}
.brand img{width:52px;height:52px;flex:0 0 auto}.brand strong{display:block;font-size:1.12rem;line-height:1.15}.brand small{display:block;color:#dce8f0;font-size:.86rem;line-height:1.25;margin-top:.15rem}
.site-nav{display:flex;flex-wrap:wrap;gap:.35rem;align-items:center;justify-content:flex-end;max-width:100%}
.site-nav a{color:white;text-decoration:none;padding:.48rem .68rem;border-radius:999px;font-size:.93rem;white-space:normal;line-height:1.2}
.site-nav a:hover,.site-nav a.active{background:rgba(255,255,255,.14)}
.hero{background:linear-gradient(180deg,#fff7ec 0%,#ffffff 75%);border-bottom:1px solid var(--border)}
.hero-inner{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:2rem;align-items:center;padding:3.2rem 0}
.hero h1{font-size:clamp(2rem,4vw,4rem);line-height:1.05;margin:0 0 1rem;color:var(--navy)}
.hero p.lede{font-size:clamp(1.05rem,1.7vw,1.28rem);max-width:75ch;margin:0 0 1.2rem;color:#2e4050}
.notice{background:#fff;border:1px solid #f0c99d;border-left:7px solid var(--orange);border-radius:var(--radius);padding:1rem 1.1rem;box-shadow:var(--shadow)}
.hero-card{background:var(--paper);border:1px solid var(--border);border-radius:var(--radius);padding:1.1rem;box-shadow:var(--shadow)}
.hero-card h2{margin-top:0;color:var(--navy)}
.hero-card ul{padding-left:1.2rem;margin-bottom:0}.hero-actions{display:flex;gap:.7rem;flex-wrap:wrap;margin-top:1.2rem}
.btn{display:inline-block;background:var(--orange);color:white!important;text-decoration:none;border-radius:999px;padding:.75rem 1rem;font-weight:700;border:0;cursor:pointer}.btn:hover{background:var(--orange-dark)}
.btn.secondary{background:var(--navy)}.btn.light{background:#fff;color:var(--navy)!important;border:1px solid var(--border)}
main section,.content-section{margin:2rem 0}.page-header{background:#fff;border-bottom:1px solid var(--border);padding:2rem 0}.page-header h1{margin:.25rem 0 .5rem;color:var(--navy);font-size:clamp(1.9rem,3.2vw,3.2rem);line-height:1.1}.page-header p{max-width:80ch;margin:0;color:#405261;font-size:1.07rem}
.breadcrumbs{font-size:.92rem;margin-bottom:.9rem}.breadcrumbs ol{display:flex;gap:.4rem;flex-wrap:wrap;list-style:none;padding:0;margin:0}.breadcrumbs li:not(:last-child)::after{content:'›';margin-left:.4rem;color:#71808d}.breadcrumbs a{text-decoration:none}
.content{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:clamp(1rem,2.4vw,2rem);box-shadow:0 5px 18px rgba(20,50,74,.05);margin:2rem auto}.content h2{color:var(--navy);line-height:1.2;margin-top:2rem}.content h3{color:#243f54;line-height:1.25}.content p,.content li{max-width:84ch}.content > *:first-child{margin-top:0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:1rem}.grid.two{grid-template-columns:repeat(auto-fit,minmax(min(100%,360px),1fr))}.grid.three{grid-template-columns:repeat(auto-fit,minmax(min(100%,290px),1fr))}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:1.1rem;box-shadow:0 5px 18px rgba(20,50,74,.04);min-width:0}.card h2,.card h3{margin-top:0;color:var(--navy)}.card p{color:#445565}.card a.card-link{display:inline-block;font-weight:700;margin-top:.3rem}.card.feature{border-top:5px solid var(--orange)}
.index-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,340px),1fr));gap:1rem;margin-top:1rem}.index-card{display:block;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:1rem;text-decoration:none;color:var(--ink);box-shadow:0 5px 18px rgba(20,50,74,.04);min-width:0}.index-card strong{display:block;color:var(--navy);font-size:1.05rem;margin-bottom:.25rem}.index-card span{display:block;color:#4d5f6e}.index-card:hover{border-color:#e6a66d;transform:translateY(-1px)}
.table-wrap{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--border);border-radius:14px;background:#fff;margin:1rem 0}table{width:100%;border-collapse:collapse;min-width:650px}th,td{text-align:left;padding:.78rem;border-bottom:1px solid var(--border);vertical-align:top}th{background:#f0f6fa;color:var(--navy)}tr:last-child td{border-bottom:0}
.callout{background:var(--sky);border:1px solid #cde5f5;border-left:7px solid #5aa2c7;border-radius:var(--radius);padding:1rem;margin:1.2rem 0}.warning{background:#fff8ef;border-color:#f0c99d;border-left-color:var(--orange)}.success{background:#f0fbf3;border-color:#c9e8d0;border-left-color:var(--green)}
.diagram{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:1rem;margin:1.3rem 0;overflow:hidden}.diagram svg{display:block;width:100%;height:auto;max-height:320px}.diagram figcaption{font-size:.92rem;color:#596a78;margin-top:.5rem}
.related{margin:2rem 0}.related h2{color:var(--navy)}.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:1rem}.related-card{display:block;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:1rem;text-decoration:none;color:var(--ink)}.related-card strong{display:block;color:var(--navy);margin-bottom:.25rem}.related-card span{color:#4e6070;display:block}
.source-box{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:1.1rem;margin:2rem 0}.source-box h2{color:var(--navy);margin-top:0}.source-box ul{columns:2;gap:2rem;padding-left:1.2rem}.source-box li{break-inside:avoid;margin-bottom:.35rem}
.tool-panel{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:1.2rem;box-shadow:var(--shadow);margin:1rem 0}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:1rem}.field label{display:block;font-weight:700;margin-bottom:.35rem;color:var(--navy)}input,select,textarea{width:100%;max-width:100%;border:1px solid #bac8d2;border-radius:12px;padding:.72rem;font:inherit;background:#fff}textarea{min-height:110px}.result{background:#f7fbff;border:1px solid #cde5f5;border-radius:14px;padding:1rem;margin-top:1rem}.result strong{color:var(--navy)}.checklist{list-style:none;padding:0}.checklist li{display:grid;grid-template-columns:auto minmax(0,1fr);gap:.6rem;align-items:start;margin:.55rem 0}.checklist input{width:auto;margin-top:.38rem}.print-note{font-size:.92rem;color:#596a78}.worksheet-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1rem;margin:.75rem 0}.worksheet-row label{font-weight:700;color:var(--navy)}
.glossary-grid{columns:2 320px;column-gap:2rem}.term{break-inside:avoid;background:#fff;border:1px solid var(--border);border-radius:14px;padding:1rem;margin:0 0 1rem}.term h2{font-size:1.1rem;margin:0 0 .35rem;color:var(--navy)}.term p{margin:0;color:#435565}
.site-footer{background:var(--navy-2);color:#e7eef3;margin-top:3rem;padding:2rem 0 1rem}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:1.5rem}.site-footer h2{font-size:1rem;color:white;margin-top:0}.site-footer a{color:#fff}.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin:.35rem 0}.footer-bottom{border-top:1px solid rgba(255,255,255,.16);margin-top:1rem;padding-top:1rem;color:#cad8e2}
@media (max-width:920px){.hero-inner{grid-template-columns:1fr}.site-nav{justify-content:flex-start}.footer-grid{grid-template-columns:1fr 1fr}.source-box ul{columns:1}}
@media (max-width:620px){.wrap{width:min(100% - 28px,1240px)}.header-inner{align-items:flex-start}.site-nav a{font-size:.9rem;padding:.45rem .58rem}.hero-inner{padding:2.2rem 0}.footer-grid{grid-template-columns:1fr}.worksheet-row{grid-template-columns:1fr}table{min-width:560px}.content{border-radius:14px}}
@media print{.site-header,.site-footer,.breadcrumbs,.hero-actions,.btn{display:none!important}body{background:#fff;color:#000}.content,.tool-panel,.card{box-shadow:none;border:1px solid #bbb}.wrap{width:100%;max-width:none}.page-header{border-bottom:1px solid #bbb}}