:root{--bg-color:#fff;--text-color:#111;--link-color:#1565c0;--border-color:#000;--border-dashed:#ccc;--meta-color:#666;--tags-color:#444;--social-bg:#f4f4f4;--social-border:#ddd}:root.dark-mode{--bg-color:#121212;--text-color:#e0e0e0;--link-color:#7ec8ff;--border-color:#e0e0e0;--border-dashed:#555;--meta-color:#aaa;--tags-color:#bbb;--social-bg:#1e1e1e;--social-border:#333}html{scroll-behavior:smooth}body{max-width:800px;color:var(--text-color);background-color:var(--bg-color);margin:0 auto;padding:20px;font-family:Arial,Helvetica,sans-serif;line-height:1.6;transition:background-color .3s,color .3s}h1{border-bottom:2px solid var(--border-color);margin-bottom:20px;padding-bottom:10px}h2{border-bottom:1px dashed var(--border-dashed);margin-top:40px;padding-bottom:5px}h3{margin-bottom:5px}a,a:visited{color:var(--link-color);text-decoration:underline}a:hover{opacity:.85}.meta{color:var(--meta-color);margin-top:0;font-size:.9em;font-style:italic}.tags{color:var(--tags-color);font-family:Courier New,Courier,monospace;font-size:.9em}.article{margin-bottom:35px}ul{padding-left:20px}li{margin-bottom:8px}.social-links{background-color:var(--social-bg);border:1px solid var(--social-border);padding:15px;transition:background-color .3s,border-color .3s}.social-links ul{margin:0;padding-left:0;list-style-type:none}.social-links li{margin-bottom:5px;margin-right:15px;display:inline-block}.theme-toggle{color:var(--text-color);cursor:pointer;float:right;background:0 0;border:none;justify-content:center;align-items:center;margin-top:5px;padding:5px;transition:opacity .2s;display:inline-flex}.theme-toggle:hover{opacity:.7}.site-footer{color:var(--meta-color);border-top:1px solid var(--social-border);margin-top:50px;padding-top:10px;font-size:.8em}.fade-in-section{opacity:0;will-change:opacity, transform;transition:opacity .6s ease-out,transform .6s ease-out;transform:translateY(15px)}.fade-in-section.is-visible{opacity:1;transform:translateY(0)}