:root{color-scheme:dark;--bg:#101a17;--panel:#192720;--line:#33473c;--text:#f5f7ed;--muted:#b7c6b9;--green:#c9ef85;--title:"Trebuchet MS",system-ui,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.55 system-ui,sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--green)}button{cursor:pointer;color:inherit}img{display:block}.shell{width:min(1240px,calc(100% - 56px));margin:auto}header,footer{border-bottom:1px solid var(--line);background:#14211b}.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:67px}.brand{font-weight:700}.mark{display:inline-grid;place-items:center;background:var(--green);color:#162315;width:34px;height:34px;margin-right:9px;font-size:24px;border-radius:7px}.divider,.toplink,footer span{color:var(--muted)}.toplink:hover{color:var(--green)}.hero{display:grid;grid-template-columns:1fr 1.17fr;align-items:center;gap:55px;padding:66px 0 64px}.eyebrow{color:var(--green);font-size:.75rem;font-weight:750;letter-spacing:.18em;margin:0 0 14px}h1,h2,h3{font-family:var(--title);line-height:1.04}h1{font-size:clamp(3.4rem,7vw,6.9rem);letter-spacing:-.075em;margin:0}h1 em{font-style:normal;color:var(--green)}.intro>p:not(.eyebrow){color:var(--muted);max-width:37ch;margin:21px 0 25px}.primary,.action{display:inline-flex;align-items:center;gap:9px;padding:10px 16px;border-radius:7px;background:var(--green);color:#172313;font-weight:750;border:1px solid transparent}.primary:hover,.action:hover{background:#e1f9af}.feature{position:relative;border:1px solid var(--line);border-radius:15px;overflow:hidden;background:var(--panel)}.feature img{width:100%;aspect-ratio:1.55;object-fit:cover}.feature span{position:absolute;bottom:0;left:0;right:0;padding:18px 20px 12px;background:linear-gradient(transparent,#0d1c15ea);font-weight:700}.feature b{float:right}.section-top,.filterrow{display:flex;align-items:center;justify-content:space-between;gap:12px}.section-top{border-top:1px solid var(--line);padding-top:26px}h2{font-size:clamp(1.65rem,4vw,2.55rem);margin:0}.search{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:7px;padding:7px 10px;background:var(--panel)}.search span{font-size:20px}.search input{background:transparent;border:0;color:var(--text);width:min(27vw,225px)}.filterrow{margin:17px 0;color:var(--muted)}#filters,#zoom-tools{display:flex;gap:7px;flex-wrap:wrap}button,.secondary{border:1px solid var(--line);background:#23352a;border-radius:7px;padding:7px 11px}#filters button[aria-pressed=true]{background:var(--green);color:#172313;border-color:var(--green)}#count{margin:0;font-size:.88rem;white-space:nowrap}.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:60px}.card{display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--line);border-radius:10px;background:var(--panel)}.card:hover{border-color:var(--green)}.card img{width:100%;height:auto;aspect-ratio:1.5;object-fit:contain;background:#dce5e2}.card-text{padding:13px 14px}.card small{display:block;color:var(--muted);margin-bottom:4px}.card strong{font-size:1.08rem}.card b{float:right;color:var(--green)}footer{border-top:1px solid var(--line)}dialog{padding:0;border:1px solid var(--line);border-radius:13px;background:var(--bg);color:var(--text);max-width:calc(100vw - 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26px)}#viewport{height:calc(100dvh - 115px);overflow:auto;background:#101613;overscroll-behavior:contain}#original{margin:auto;max-width:none;image-rendering:pixelated}#zoom{min-width:49px;text-align:center;align-self:center}@media(max-width:850px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}.hero{gap:25px}}@media(max-width:600px){.shell{width:calc(100% - 28px)}.hero{grid-template-columns:1fr;padding:35px 0;gap:20px}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.bar{min-height:58px;font-size:.8rem}.section-top,.filterrow,.viewer-head{align-items:flex-start;flex-wrap:wrap}.search input{width:130px}.lesson-layout{grid-template-columns:1fr}.lesson-content{padding:13px}.viewer-head{padding:8px}.feature img{aspect-ratio:1.9}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.paint-tip{border:1px solid var(--line);border-radius:8px;margin:0 0 15px;padding:9px 12px;color:var(--muted)}.paint-tip summary{cursor:pointer;color:var(--text)}.paint-tip p{margin:8px 0 0}