Siatka kart z podświetleniem

Gotowy kod: Siatka kart z podświetleniem

HTML

<section class="lab"><h2>Siatka kart z podświetleniem</h2><div class="spot-grid"><article><h3>Design</h3><p>Forma spotyka funkcję.</p></article><article><h3>Kod</h3><p>Małe rzeczy robią różnicę.</p></article><article><h3>Efekt</h3><p>Twórz po swojemu.</p></article></div></section>

CSS

*{box-sizing:border-box}body{margin:0;padding:35px 24px;background:#f4f5ef;color:#293322;font:15px/1.7 Arial,sans-serif;min-height:100vh;display:grid;place-items:center}button,input{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #738858;outline-offset:4px}h2,h3,p{margin-top:0}[hidden]{display:none!important}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.lab{max-width:800px;margin:25px auto;padding:25px;border:1px solid #d4dec9;border-radius:14px;background:#fff;color:#273724;font:15px/1.6 system-ui,sans-serif;overflow-wrap:anywhere}.lab *{box-sizing:border-box}.lab h2{font-size:23px;margin:0 0 25px;line-height:1.3}.lab h3{line-height:1.3}.lab label{display:block;margin:10px 0}.lab input:not([type=checkbox]):not([type=radio]),.lab select,.lab textarea{font:inherit;padding:9px;border:1px solid #bac9ad;border-radius:6px;max-width:100%;background:#fff;color:#273724}.lab input[type=range]{width:100%;accent-color:#6f8e58}.lab input[type=color]{height:45px;width:70px}.lab input[type=checkbox]{accent-color:#6f8e58;margin-right:8px}.lab textarea{width:100%}.lab button{font:inherit;font-weight:600;border:0;border-radius:14px;background:#6f8e58;color:#fff;padding:10px 16px;cursor:pointer}.lab button:disabled{opacity:.45;cursor:default}.lab :focus-visible{outline:3px solid #315f8b;outline-offset:3px}.lab pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#f0f4e9;padding:15px;font:12px/1.6 monospace}.lab table{border-collapse:collapse;width:100%}.lab th,.lab td{padding:10px;text-align:left;border-bottom:1px solid #d9e3ce}.lab progress{accent-color:#6f8e58}.lab .lab-hint{font-size:11px;color:#687861;border-top:1px solid #dbe3d0;padding-top:16px;margin-top:25px}.lab [hidden]{display:none!important}@media(max-width:480px){.lab{padding:16px;margin:10px auto}.lab h2{font-size:20px}.lab table{font-size:12px}.lab th,.lab td{padding:7px}}@media(prefers-reduced-motion:reduce){.lab *{animation:none!important;transition:none!important}}
.spot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px}.spot-grid article{padding:35px 20px;border:1px solid #58694b;background:#1f2c20;color:white;min-height:200px}

JavaScript

document.querySelectorAll('.spot-grid article').forEach(card=>{card.addEventListener('pointermove',e=>{const r=card.getBoundingClientRect();card.style.background='radial-gradient(circle at '+(e.clientX-r.left)+'px '+(e.clientY-r.top)+'px, #6f8e58, #1f2c20 170px)'});card.addEventListener('pointerleave',()=>card.style.background='#1f2c20')});