.brand{color:inherit;text-decoration:none}.skip-link{position:absolute;left:12px;top:-80px;z-index:9;background:white;padding:12px}.skip-link:focus{top:8px}
.viewport{min-height:560px}.workbench{min-width:0}.field-label{display:block;font-weight:600;margin-bottom:9px}select{font:inherit;color:var(--ink);padding:12px;border:1px solid #aabdb0;border-radius:5px;width:100%;background:#fff}.supply{display:flex;align-items:center;gap:10px;padding:20px 0;cursor:pointer}.supply input{width:19px;height:19px;accent-color:#226749}.controls{padding:0 24px 16px}#clean-controls{border-top:1px solid var(--line);padding-top:18px}#removal{width:100%;accent-color:#226749}#removal-label{display:block;color:var(--muted);font-size:13px;margin:7px 0 14px}#play-removal{background:#226749;color:#fff;border:0;border-radius:5px;min-height:44px;padding:10px 16px}
.sprayer-legend{display:grid;grid-template-columns:1fr 1fr;gap:9px;padding:22px 24px;font-size:12px;color:var(--muted)}.sprayer-legend span{display:flex;align-items:center;gap:8px}.sprayer-legend i{width:9px;height:9px;border-radius:50%;flex:none}.green{background:#3c8059}.blue{background:#287bda}.yellow{background:#d7bc55}.gray{background:#a6ada5}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;padding:45px 0 25px}.facts h2{font:600 29px/1.1 Barlow,sans-serif;margin:11px 0}.facts p:not(.sectionnum){color:var(--muted);font-size:14px}.source-note{padding:4px 22px 19px;max-width:960px}.source-note a{color:var(--green)}.labels{pointer-events:none}.label{position:absolute;background:#fbfcf7e8;border:1px solid #b8c9bc;padding:4px 8px;border-radius:4px;font:11px var(--mono);opacity:0}.stagecaption{max-width:80%}.observation{margin-top:0!important}.signal.off{background:#a7afa9!important}select:focus-visible{outline:3px solid #2a7eaf;outline-offset:3px}.stagefooter{gap:8px}
@media(max-width:900px){.viewport{min-height:470px}.facts{gap:22px}.brand span,.brand i{display:none}.workspace{grid-template-columns:minmax(0,1.4fr) minmax(285px,1fr)}}
@media(max-width:650px){.workspace{grid-template-columns:1fr}.viewport{min-height:430px}.pageheading{display:block}.pageheading>p{margin-top:20px}.facts{grid-template-columns:1fr;gap:16px;padding-top:30px}.facts article{border-bottom:1px solid var(--line)}#chapters button{padding:13px 7px!important;gap:6px;font-size:12px;flex:1}.brandinner,main{padding-left:16px;padding-right:16px}.brandinner{gap:12px}.lesson-links{gap:12px!important;font-size:12px!important}.brand strong{font-size:19px}.brand{gap:7px}.brand img{width:25px;height:25px}.stagecaption{font-size:9px;max-width:78%;line-height:1.5}.stagefooter{left:12px;right:12px}.mouse-hint{font-size:10px}.stagefooter button{font-size:11px!important;padding:8px!important}.lesson-bottom{flex-wrap:wrap;gap:18px}.sprayer-legend{padding-top:12px}.chapterintro{padding-top:22px}}