main{max-width:1120px}.intro h1{font-size:clamp(34px,5.5vw,64px)}.primary{padding:8px 20px;border:1px solid var(--accent);text-decoration:none;border-radius:5px}.contents{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:40px 0 6px}.contents a{text-decoration:none;border-top:1px solid var(--line);padding-top:15px;font-size:14px}.contents small{display:block;color:var(--muted);margin-bottom:5px}.setup{max-width:820px;margin-bottom:70px}.prompt{border:1px solid #345358;border-radius:10px;background:#101d21;padding:20px 25px;margin:24px 0}.prompt-head{display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:12px;color:var(--muted)}.prompt p{font-size:16px;line-height:1.9;margin:18px 0 0;white-space:pre-wrap}.prompt button{border:1px solid #537475;background:transparent;color:var(--accent);padding:6px 12px;border-radius:5px;font-size:13px}.prompt button:hover{background:#21383c}.lesson{border-top:1px solid var(--line);padding:56px 0 48px;scroll-margin-top:20px}.lesson-title{display:flex;gap:28px;align-items:center}.number{font-size:60px;color:#657f83;font-weight:200;line-height:1}.lesson-title h2{margin:5px 0;font-size:30px}.lesson-title p{margin:0}.result{display:grid;grid-template-columns:1.2fr 1fr;gap:30px;align-items:center;margin:30px 0}.result figure{margin:0}.result img{border-radius:8px;object-fit:contain;height:auto}.result h3{font-size:22px;color:var(--warm)}.result p{font-size:15px}.result .eyebrow{font-size:11px}.follow{max-width:820px}.follow h3{font-size:17px}.follow .prompt{margin-top:12px}details{font-size:14px;color:var(--muted);margin:20px 0;max-width:820px}summary{cursor:pointer;padding:8px 0}details p{margin:8px 0}.closing{border-top:1px solid var(--line);max-width:820px}#copy-status{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#d4eee8;color:#102321;border-radius:6px;padding:7px 18px;font-size:14px;pointer-events:none;opacity:0}#copy-status.show{opacity:1}@media(max-width:760px){.result{grid-template-columns:1fr}.contents{grid-template-columns:1fr 1fr}.lesson-title{gap:18px}.number{font-size:44px}.lesson-title h2{font-size:25px}.prompt{padding:17px}.lesson{padding-top:35px}}@media print{body{background:white;color:black}header,.contents,button,.links,#copy-status{display:none}main{padding:0}.prompt{break-inside:avoid;color:black;background:#f4f4f4}.lesson{break-before:page}.result{display:block}.result img{max-height:220px;width:auto}details{display:block;color:#555}h1,h2,h3,p,strong{color:black}}
/* Native disclosure remains usable even in script-disabled saved pages. */
.intro h1,.lesson-title h2,.contents a{text-wrap:balance}
.links .download-menu{position:relative;margin:0;max-width:none;font-size:inherit;color:var(--accent)}
.download-menu summary{display:flex;align-items:center;gap:16px;list-style:none;padding:8px 16px;border:1px solid #537475;border-radius:5px;line-height:1.5}
.download-menu summary::-webkit-details-marker{display:none}
.download-menu summary:hover,.download-menu[open] summary{background:#21383c}
.download-options{position:absolute;top:calc(100% + 8px);left:0;z-index:20;min-width:180px;padding:6px;background:#101d21;border:1px solid #345358;border-radius:8px;box-shadow:0 12px 28px #0005}
.links .download-options a{display:block;padding:10px 13px;border-radius:4px;text-decoration:none;font-size:14px;white-space:nowrap}
.download-options a:hover,.download-options a:focus-visible{background:#21383c;color:#fff}
.download-menu summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
@media print{.download-menu{display:none}}
header{align-items:center;flex-wrap:wrap}header>a:first-child{margin-right:auto}.languages{display:flex;gap:4px;align-items:center;border-left:1px solid var(--line);padding-left:16px}.languages a{padding:4px 9px;border-radius:4px;color:var(--muted);font-size:13px;line-height:1.7}.languages a[aria-current="page"]{color:var(--accent);background:#21383c}.languages a:hover{color:#fff}.prompt-head{flex-wrap:wrap}.prompt-head button{white-space:nowrap}html[lang="en"] .intro h1,html[lang="fr"] .intro h1{max-width:1000px;font-size:clamp(34px,5vw,60px)}.contents a,.prompt p{overflow-wrap:break-word}#copy-status{max-width:calc(100vw - 32px);width:max-content;z-index:40}@media(max-width:440px){header{gap:12px}.languages{padding-left:8px}.languages a{padding:4px 6px}}@media print{.languages{display:none}}

.setup-diagram{margin:1.5rem 0}.setup-diagram img{width:100%;max-width:760px;height:auto;background:#101d21;border-radius:8px}.lesson-files{font-size:.9rem}.lesson-files a{color:var(--accent,#69cfc7)}
.load-shapes{display:block;margin-top:12px;width:100%}