@charset "UTF-8";
:root{color-scheme:light;--ink:#143e35;--muted:#51675e;--paper:#fcfdf9;--line:#dce7df;--soft:#eff6ed;--accent:#285e4d}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:6rem}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:var(--accent);text-underline-offset:.2em}
a:hover{text-decoration-thickness:2px}
a:focus-visible{outline:3px solid #8bb043;outline-offset:4px;border-radius:2px}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,p{margin:0}
.shell{width:min(1120px,calc(100% - 40px));margin-inline:auto}
.skip-link{position:absolute;left:16px;top:-80px;padding:10px 16px;background:#fff;z-index:10}
.skip-link:focus{top:12px}
.site-header{border-bottom:1px solid var(--line);background:#fff}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:92px}
.brand{display:flex;align-items:center;gap:18px;min-width:0}
.brand span{padding-left:18px;border-left:1px solid var(--line);color:var(--muted);font-size:.85rem;white-space:nowrap}
nav{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:.9rem;font-weight:600}
nav a{text-decoration:none}
nav a:hover{text-decoration:underline}
.hero{padding-block:70px 64px}
.eyebrow,.section-label,.contents-label{color:#547b5e;font-size:.75rem;font-weight:800;letter-spacing:.12em}
h1{max-width:860px;margin-top:16px;font-size:clamp(2.3rem,5.3vw,4.5rem);line-height:1.08;letter-spacing:-.045em}
.lead{max-width:830px;margin-top:26px;color:#35584a;font-size:clamp(1.1rem,2vw,1.3rem);line-height:1.65}
.download-line{max-width:830px;margin-top:22px;padding:16px 20px;border:1px solid #cddfcf;border-radius:10px;background:#f3f8f0;line-height:1.55}
.download-line a{font-weight:700}
.scope-note{max-width:830px;margin-top:32px;padding:22px 26px;border-left:4px solid #72a06a;background:var(--soft)}
.scope-note h2{font-size:1rem}
.scope-note p{margin-top:5px}
.content{display:grid;grid-template-columns:220px minmax(0,1fr);gap:64px;border-top:1px solid var(--line);padding-block:38px 96px}
.contents{position:sticky;top:32px;align-self:start;display:grid;gap:10px;padding-top:12px;font-size:.9rem}
.contents-label{margin-bottom:6px}
.contents a{text-decoration:none}
.contents a:hover{text-decoration:underline}
.article{max-width:780px}
.article section{padding:42px 0;border-bottom:1px solid var(--line)}
.article section:first-child{padding-top:12px}
.article section:last-child{border-bottom:0}
.article h2{margin:8px 0 20px;font-size:clamp(1.7rem,3vw,2.45rem);line-height:1.2;letter-spacing:-.025em}
.article h3{font-size:1.08rem;line-height:1.3}
.article p+p{margin-top:16px}
.steps{list-style:none;margin:0;padding:0;display:grid;gap:18px}
.steps li{display:grid;grid-template-columns:34px 1fr;gap:16px}
.steps p,.framework-grid p{margin-top:5px;color:#334f43}
.step-number{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#dceccf;font-weight:800}
.info{margin-top:20px;padding:15px 18px;background:#f4f7ef;border:1px solid var(--line);border-radius:8px;font-size:.94rem}
blockquote{margin:20px 0;padding:18px 22px;border-left:4px solid #79a778;background:#f2f7f0;font-size:1.06rem}
.framework-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:22px}
.framework-grid article{padding:22px;border:1px solid var(--line);border-radius:12px;background:#fff}
.check-list,.resource-list{padding-left:24px;margin:18px 0 0}
.check-list li+li,.resource-list li+li{margin-top:12px}
.affiliation{margin-top:26px;color:var(--muted);font-size:.9rem}
.site-footer{border-top:1px solid var(--line);background:#f2f6f1;color:var(--muted);font-size:.85rem}
.site-footer .shell{display:flex;justify-content:space-between;gap:20px;padding-block:23px}
@media(max-width:850px){.header-inner{align-items:flex-start;flex-direction:column;padding-block:20px}.content{grid-template-columns:1fr;gap:6px}.contents{position:static;display:flex;flex-wrap:wrap;gap:8px 18px;border-bottom:1px solid var(--line);padding-bottom:24px}.contents-label{width:100%}.framework-grid{grid-template-columns:1fr}.hero{padding-block:50px}}
@media(max-width:540px){.shell{width:min(100% - 32px,1120px)}.brand{align-items:flex-start;flex-direction:column;gap:7px}.brand span{padding-left:0;border-left:0}.scope-note{padding:18px}.site-footer .shell{flex-direction:column}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}