:root{color-scheme:light dark}body{font-family:avenir,sans-serif;max-width:40rem;margin:2rem auto;padding:2rem;line-height:1.6rem}h1,h2,h3{text-align:center;margin-top:5rem}p{padding-top:1rem}img{margin-bottom:2rem}.clients{padding:0;list-style-type:none;display:flex;flex-direction:column;gap:.5rem;justify-content:center;align-items:center}footer{margin-top:6rem}footer hr{margin:3rem 0}@media(prefers-color-scheme:dark){img{filter:grayscale(.75)invert(1)brightness(2)}}