*{box-sizing:border-box;padding:0;margin:0}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6;color:#333;min-height:100vh}.container{max-width:800px;padding:2rem;margin:2rem auto 0}h1{font-size:2.5rem;margin-bottom:1rem;color:#2563eb}h2{font-size:1.5rem;margin:2rem 0 1rem;color:#1e40af}p{margin-bottom:1rem}.last-updated{font-style:italic;color:#666;margin-bottom:2rem}.header{background:#fff;border-bottom:1px solid #e5e7eb;padding:1rem 0;position:-webkit-sticky;position:sticky;top:0;z-index:1000;transition:box-shadow .2s ease;width:100%}.header.scrolled{box-shadow:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06)}.header-content{max-width:800px;margin:0 auto;padding:0 2rem;display:flex;align-items:center;gap:1rem}.logo{border-radius:8px}.title{font-size:1.5rem;margin:0;color:#2563eb}section{margin:2rem 0}ul{margin:1rem 0;padding-left:2rem}li{margin:.5rem 0}strong{font-weight:600;color:#1e40af}.footer{background:#f8fafc;border-top:1px solid #e5e7eb;padding:2rem 0;margin-top:4rem;text-align:center}.footer-content{max-width:800px;margin:0 auto;padding:0 2rem}.footer p{margin:.5rem 0;color:#6b7280}.footer .copyright{font-size:.9rem}.footer .built-by{font-size:.9rem;font-weight:500;color:#374151}