:root{color-scheme:light;font-family:system-ui,-apple-system,sans-serif;color:#29251f;background:#faf8f4;font-synthesis:none}*{box-sizing:border-box}body{margin:0}header,main,footer{width:min(1060px,calc(100% - 40px));margin:auto}header{display:flex;justify-content:space-between;align-items:center;padding:26px 0;border-bottom:1px solid #e6dfd5;gap:20px}nav{display:flex;gap:20px;flex-wrap:wrap}a{color:#a53c1d;text-underline-offset:4px}.brand{font-weight:850;letter-spacing:-1px;font-size:24px;color:#29251f;text-decoration:none}.brand span{color:#ba431f}main{padding:48px 0}h1{font-size:clamp(32px,6vw,62px);letter-spacing:-2px;line-height:1.1;margin:16px 0 22px;max-width:850px}h2{font-size:25px;letter-spacing:-.6px;margin:30px 0 18px}h3{font-size:21px;margin:14px 0}.intro{font-size:18px;line-height:1.7;max-width:680px;color:#625b51}.eyebrow{font-size:11px;letter-spacing:1.6px;font-weight:700;color:#8b542e}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}.card{background:#fff;border:1px solid #e6dfd5;border-radius:14px;padding:24px}.card p,.note p{line-height:1.7}.button{display:inline-flex;background:#ba431f;border:1px solid #ba431f;color:#fff;text-decoration:none;padding:13px 20px;border-radius:8px;font-weight:650;margin:10px 0;transition:transform .15s}.button:hover{transform:translateY(-2px)}.secondary{background:#fff;color:#a53c1d;border-color:#dfc5b5}.years{margin:28px 0}.years a{background:#efe9df;padding:10px 18px;border-radius:30px;text-decoration:none}.hint{font-size:13px;color:#625b51}.stats{margin:28px 0}.stats strong{display:block;font-size:32px}.stats span{color:#625b51}.note{background:#f0eae0;padding:24px;border-radius:12px;margin:32px 0}.note h2{margin-top:0}.preview{margin:18px 0}.math{white-space:pre-wrap;overflow-wrap:anywhere}.options{list-style-type:upper-alpha;padding-left:28px}.options li{padding:10px}.preview img{max-width:100%;max-height:360px;object-fit:contain}.katex-display{overflow-x:auto;overflow-y:hidden}footer{border-top:1px solid #e6dfd5;padding:25px 0 40px;font-size:13px;color:#625b51}.skip{position:absolute;top:-100px}.skip:focus{top:0;background:white;padding:15px}a:focus-visible{outline:3px solid #ba431f;outline-offset:4px}@media(max-width:550px){header nav{gap:12px;font-size:13px}.grid{grid-template-columns:1fr}.card{padding:20px}main{padding-top:30px}h1{letter-spacing:-1px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}

.social-start{max-width:720px;margin:auto}.social-start .card{margin:22px 0}.social-start .card h2{margin:14px 0}.social-start .button{min-height:48px}.social-start .intro{margin-bottom:35px}