*{box-sizing:border-box}body{margin:0;background:#f5f8f6;color:#162b22;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.85}a{color:inherit;text-decoration:none}header{border-bottom:1px solid #dce7df;background:#fff}header nav{max-width:1140px;margin:auto;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.logo{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:800}.mark{background:#00ac78;color:white;border-radius:12px;padding:0 10px}.entry,button{background:#009e6e;color:#fff;padding:8px 16px;border:0;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer}main{max-width:1140px;margin:auto;padding:45px 24px}.eyebrow{color:#008b60;font-size:12px;font-weight:800;letter-spacing:2px}h1{font-size:clamp(30px,5vw,48px);line-height:1.25;letter-spacing:-1px;margin:14px 0}h2{font-size:22px;line-height:1.5}h3{line-height:1.6;font-size:19px}.muted,.meta{color:#62766b}.hero{padding:12px 0 26px}.hero p{max-width:620px}.toolbar{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}input{flex:1;min-width:180px;max-width:500px;padding:12px 16px;border:1px solid #d9e4dc;background:#fff;border-radius:12px;font:inherit}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.card{background:#fff;border:1px solid #dce7df;border-radius:18px;padding:24px;transition:transform .15s}.card:hover{transform:translateY(-3px);border-color:#00ac78}.tag{color:#008c62;font-size:12px;font-weight:700}.meta{font-size:12px}.card p{font-size:14px}.read{color:#009567;font-weight:700;font-size:14px}.section{margin-top:48px}.news{display:grid;gap:12px}.news a{border:1px solid #dce7df;background:#fff;border-radius:12px;padding:16px 20px}.news a:hover{border-color:#00ac78}.article{max-width:800px;background:white;border:1px solid #dce7df;border-radius:20px;padding:36px;margin:20px auto}.article h1{font-size:34px}.article p{margin:24px 0;font-size:16px}.source{border-top:1px solid #dce7df;padding-top:20px;font-size:13px}.source a{color:#009567;overflow-wrap:anywhere}.back{color:#008b60}.empty{padding:20px}footer{max-width:1140px;margin:auto;padding:28px 24px;border-top:1px solid #dce7df;color:#62766b;font-size:12px}.hidden{display:none!important}@media(max-width:800px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:540px){header nav{padding:16px}.logo{font-size:17px}.entry{font-size:12px;padding:7px 10px}main{padding:28px 16px}.grid{grid-template-columns:1fr}.card{padding:20px}.article{padding:22px}.article h1{font-size:27px}}@media(prefers-color-scheme:dark){body{background:#091b13;color:#e3ede7}header,.card,.news a,.article,input{background:#11251a;border-color:#294032}input{color:#e3ede7}.muted,.meta,footer{color:#9ab0a2}.source,footer{border-color:#294032}.tag,.eyebrow,.read,.back,.source a{color:#48d5a0}}.reading-path{display:inline-block;color:#008b60;background:#e7f4ed;border-radius:10px;padding:8px 12px;font-size:13px}.learning-stage>p{margin-top:-4px;margin-bottom:20px}.article{overflow-wrap:anywhere}.article .lead{color:#62766b}.toc{background:#f1f7f3;border:1px solid #dce7df;border-radius:14px;padding:18px 24px;margin:28px 0}.toc h2{font-size:17px;margin:0 0 8px}.toc ol{padding-left:22px;margin:0}.toc a,.references a{color:#008b60;text-decoration:underline;text-underline-offset:3px}.toc a:hover,.references a:hover{color:#005c40}.article-section{scroll-margin-top:20px}.article-section h2{margin-top:40px}.article p.references{font-size:13px;color:#62766b}.example{background:#f1f7f3;border:1px solid #dce7df;border-radius:12px;padding:18px}.example pre{white-space:pre-wrap;overflow-wrap:anywhere;margin-bottom:0;font-size:14px;line-height:1.8}.reading-next{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:26px}.reading-next a{display:flex;flex-direction:column;gap:6px;border:1px solid #dce7df;border-radius:12px;padding:14px;font-size:14px}.reading-next a:hover{border-color:#00ac78}.source li{margin:8px 0}.source ul{padding-left:20px}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid #009e6e;outline-offset:4px}@media(max-width:540px){.toc{padding:16px}.article-section h2{font-size:20px}.reading-next{grid-template-columns:1fr}.reading-path{font-size:12px}}@media(prefers-color-scheme:dark){.toc,.example,.reading-path{background:#173326;border-color:#294032}.reading-next a{border-color:#294032}.article .lead,.article p.references{color:#9ab0a2}.reading-path,.toc a,.references a{color:#48d5a0}}@media(prefers-reduced-motion:reduce){.card{transition:none}}.article-figure{margin:26px 0 30px}.article-figure img{display:block;width:100%;height:auto;border-radius:16px}.article-figure figcaption{font-size:13px;line-height:1.7;color:#62766b;margin-top:10px}.card-illustration{display:block;width:100%;height:auto;border-radius:12px;margin-bottom:18px}.article--compact .article-section h2{font-size:21px;margin-top:26px}.article--compact .article-section p{margin:16px 0}.article--compact .source{margin-top:28px}.article--compact .lead{font-size:15px}@media(prefers-color-scheme:dark){.article-figure figcaption{color:#9ab0a2}}