:root{--text:#222;--background:#fff;--accent:#f5d36b;--accent-dark:#c8a53a;--accent-80:#f5d36bcc;--border:#ddd;--border-light:#02020259;--content-width:900px;--link:#2f5f8f;--link-hover:var(--accent-dark);--figure-bg:#f7fafc}*{box-sizing:border-box}html{color:var(--text);background:var(--background);font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.6}body{margin:0}header{border-bottom:1px solid var(--border)}nav{max-width:var(--content-width);justify-content:flex-start;align-items:center;gap:2rem;margin:0 auto;padding:1rem;display:flex}nav a{color:inherit;font-weight:600;text-decoration:none}.brand{align-items:center;display:flex}.brand img{width:auto;height:80px;display:block}.nav-links{align-items:center;gap:2rem;display:flex}nav a:hover,nav a:focus-visible{text-decoration:underline}main{max-width:var(--content-width);margin:0 auto;padding:2rem 1rem}h1{margin-top:0}a{color:var(--link);text-decoration:none}a:hover,a:focus-visible{color:var(--link-hover);text-decoration:underline}footer{max-width:var(--content-width);border-top:1px solid var(--border);text-align:center;color:#666;margin:4rem auto 2rem;padding:1rem;font-size:.7rem}footer p{margin:.4rem 0}footer a{padding:0 .4rem}.example-image{width:100%;height:auto;display:block}.mapping{grid-template-columns:2fr 2fr;align-items:center;gap:2rem;margin:2rem 0;display:grid}.projection{grid-template-columns:1fr 2fr;align-items:center;gap:2rem;display:grid}.projection-figure{grid-template-columns:2fr auto 1fr;align-items:center;gap:.05rem;display:grid}.projection-text{max-width:20rem}.projection-arrow{color:var(--accent);justify-self:center;font-size:3rem;font-weight:700}.projection-arrow a,.projection-arrow a:visited,.projection-arrow a:hover,.projection-arrow a:active,.projection-arrow a:focus-visible{color:inherit;text-decoration:none}.projection-arrow{transition:transform .15s}.projection-arrow:hover,.projection-arrow a:focus-visible{transform:scale(1.1)}.notes{margin-top:2rem}@media (width<=900px){.mapping{grid-template-columns:1fr}.projection{grid-template-columns:1fr;justify-items:center}}.mapping-image{position:relative}.mapping-badge{background:var(--accent);color:#222;letter-spacing:.03em;user-select:none;opacity:.9;border-radius:999px;padding:0 .2rem;font-size:.7rem;font-weight:700;position:absolute;bottom:.5rem;right:.5rem}.accent-cell{background:var(--accent-80);width:.7em;height:1.1em;box-shadow:inset 0 0 0 1px var(--border-light);border-radius:.1em;justify-content:center;align-items:center;margin:0 .03em;padding-bottom:.25em;line-height:1;display:inline-flex}hr{border:0;border-top:2px solid var(--accent-80);width:30%;margin:2.5rem 0 2.5rem 3%}.example-panel{background:var(--figure-bg);border:1px solid var(--accent-80);border-radius:.75rem;margin:2rem 0;padding:1.5rem}.notfound{grid-template-columns:minmax(18rem,24rem) 1fr;align-items:start;gap:2.5rem;display:grid}.notfound-puzzle{display:block}.notfound-puzzle img{border:1px solid var(--border);border-radius:.5rem;width:100%;height:auto;transition:transform .15s;display:block}.notfound-puzzle:hover img,.notfound-puzzle:focus-visible img{transform:scale(1.02)}@media (width<=900px){.notfound{grid-template-columns:1fr}.notfound-puzzle{justify-self:center;max-width:28rem}}table{border-collapse:separate;border-spacing:0;border:1px solid #ccc;border-radius:8px;width:500px;max-width:100%;margin:1.5rem auto;overflow:hidden}th,td{border-bottom:1px solid #ccc;border-right:1px solid #ccc;padding:.5rem .8rem}th:last-child,td:last-child{border-right:none}tr:last-child td{border-bottom:none}th{font-weight:600}.youtube-panel{background:var(--figure-bg);border:1px solid var(--accent-80);border-radius:.75rem;max-width:800px;margin:2rem auto;padding:1.5rem}.youtube-panel iframe{aspect-ratio:16/9;border:0;width:100%;height:auto;display:block}.amazon-panel-desktop{display:block}.amazon-panel-mobile{display:none}@media (width<=1100px){.amazon-panel-desktop{display:none}.amazon-panel-mobile{display:block}}.amazon-panel{z-index:10;background:var(--figure-bg);border:1px solid var(--accent-80);border-radius:.75rem;width:200px;padding:.9rem;position:fixed;top:35%;right:2rem}.amazon-panel summary{display:none}.amazon-panel-content h3{margin:0;font-size:.85rem;line-height:1.35}.amazon-panel-content ul{margin:.7rem 0;padding-left:1rem;font-size:.85rem}.amazon-panel-content li{margin-bottom:.3rem}.amazon-disclaimer{border-top:1px solid var(--accent-80);margin:.7rem 0 0;padding-top:.7rem;font-size:.6rem;line-height:1.4}@media (width<=1100px){.amazon-panel{border-radius:.75rem 0 0 .75rem;width:auto;padding:0;top:50%;right:0}.amazon-panel summary{text-align:center;cursor:pointer;width:2.5rem;padding:.65rem 0;font-size:1.1rem;list-style:none;display:block}.amazon-panel summary::-webkit-details-marker{display:none}.amazon-panel-mobile summary{text-align:center;cursor:pointer;width:2.5rem;padding:.65rem 0;font-size:1.1rem;list-style:none}.amazon-panel-mobile[open]{width:180px;padding:.9rem}.amazon-panel-mobile[open] summary{font-size:0;position:absolute;top:0;right:0}.amazon-panel-mobile[open] summary:after{content:"×";font-size:1.25rem}}