:root{color-scheme:light;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#1d294d;background:#fffdf8}
*{box-sizing:border-box}body{margin:0;line-height:1.65}a{color:#22549a;overflow-wrap:anywhere}a:focus-visible{outline:3px solid #ffbd32;outline-offset:3px}
.archive-header{border-bottom:1px solid #d9dce8;background:#fff;padding:1rem max(1rem,calc((100% - 70rem)/2))}.archive-header nav{display:flex;flex-wrap:wrap;gap:.6rem 1.5rem;align-items:center}.archive-header strong{font-size:1.15rem;margin-right:auto}.archive-header a{text-decoration:none}
.archive-main{width:min(100% - 2rem,70rem);margin:2.5rem auto 5rem}.archive-main h1,.archive-main h2,.archive-main h3{font-family:Georgia,serif;line-height:1.25;color:#182450}.archive-main h1{font-size:clamp(2rem,5vw,3rem)}.archive-main h2{margin-top:2.2rem}.archive-main p,.archive-main li{max-width:76ch}.archive-main img{max-width:100%;height:auto;display:block;margin:1.2rem 0}.archive-main figure{margin:1.5rem 0}.archive-main figure img{margin-inline:auto}.archive-main table{border-collapse:collapse;max-width:100%;display:block;overflow-x:auto}.archive-main th,.archive-main td{border:1px solid #cbd1dc;padding:.5rem}.archive-main blockquote{border-left:4px solid #ffc543;padding-left:1rem;margin-left:0}
.archive-main button{font:inherit}.archive-footer{padding:2rem max(1rem,calc((100% - 70rem)/2));border-top:1px solid #d9dce8;background:#f6f7fb}.archive-footer p{margin:.25rem 0}.archive-footer a{margin-right:1rem}
.mathapex-blog-title,.faq-toggle{display:none}.mathapex-pyramid-visual{width:min(100%,30rem);padding:1.5rem;margin:2rem 0;background:#fff3d2;border:1px solid #e8d191;border-radius:1rem;text-align:center}.mathapex-pyramid-row{display:flex;justify-content:center;gap:.5rem;margin:.5rem 0}.mathapex-pyramid-cell{display:grid;place-items:center;min-width:3.5rem;min-height:3.5rem;padding:.25rem;border:2px solid #1d294d;border-radius:.65rem;background:#fff;font-weight:700;font-size:1.35rem}
.mathapex-example-box{width:min(100%,36rem);padding:1.5rem;margin:2rem 0;background:#f6f7fb;border:1px solid #d9dce8;border-radius:1rem}.mathapex-example-box .mathapex-pyramid-known{background:#4058ac;color:#fff}