/* Brighter ink and chapter colors, with the notebook's structure intact. */
:root{--paper:#fffaf0;--ink:#183957;--muted:#607789;--rule:#c8d9df;--accent:#e55236}
header{border-bottom-color:#254fa3}.logo{color:#2258ae}.logo span{color:#e55236}.hero h1 em{color:#245cd0}.hero{border-bottom-color:#254fa3}.hero p{color:#4f6d82}.browse-link{background:#235dcc;color:white}.browse-link:hover{background:#174baa}.pencil-note{color:#d94e34}.featured{background:#ffeb9e;border-color:#e3bd4a}.featured:before{background:#74cdb3a6}.feature-top{color:#725e31}.feature-arrow{color:#d64c33}.featured p{color:#6e6345}.featured svg{filter:saturate(1.35)}.catalog-bar h2{color:#2055a0}#filters button{color:#476c85}#filters button.active{color:#215dc7;border-bottom-color:#ef6546}.card{border-top-color:#7aa0c1}.card canvas{filter:none}.card:hover canvas{filter:saturate(1.1)}.card:hover{border-color:#ef6546}.card h3{color:#1c4e7b}.card small{color:#516f88}.card p{color:#5c7486}.card .launch{color:#ce472e;font-weight:bold}.card:nth-child(4n+1){border-top:3px solid #316edf}.card:nth-child(4n+2){border-top:3px solid #e9764b}.card:nth-child(4n+3){border-top:3px solid #28a789}.card:nth-child(4n){border-top:3px solid #e6b332}
.experiment-heading h1{color:#214e8a}.experiment-heading>span{color:#cf4c32}.workbench{border-color:#7ba8cb}.scene-top{background:#d4edff;border-color:#a4cde9}.scene-top>span{color:#316686}.scene-top button{background:#f5fbff;border-color:#7eacd0;color:#275e8c}aside{background:#fff0b8;border-color:#ccbb74}aside h2{color:#d4472b}.control{border-color:#dfcd8f}.control output{color:#215dc1}.control input[type=range]{accent-color:#2e6fd0}.control select{background:#fffaf0;border-color:#c4b885;color:#244664}.prediction{border-color:#a09f68}.prediction b{color:#148369}.prediction p{color:#586c5c}.playbar{background:#245aab;color:#e1efff}.playbar button{background:#326cc0;border-color:#7eaae0}#reset{background:#ffcf48;border-color:#ffcf48;color:#354621}#metrics{border-color:#9cc5e0;background:#f7fcff}#metrics strong{color:#21579d}#metrics small{color:#4a718b}.touch-hint{color:#376e92}.compare{border-color:#b1c9d5}.compare h2{color:#2055a0}#remember{background:#245dcc;border-color:#245dcc}#guided summary{color:#bd452a}#guided{border-color:#d4bf7c}#setups button{background:#fffaf0;color:#265483;border-color:#c9c097}.comparison-row .changed{color:#d4482d}.under .eyebrow{color:#cf482b}.next-nav{color:#245dcc}footer{border-top-color:#254fa3;color:#59778e}