:root{--bg-color:#fff;--text-color:#1a1a1a;--header-text:#000;--accent-color:#ff6719;--link-color:#1a1a1a;--border-color:#ebebeb;--card-bg:#fff;--header-bg:#fff;--font-serif:"Source Serif Pro",Georgia,serif;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-color);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;line-height:1.6}h1,h2,h3,.logo{font-family:var(--font-serif);color:var(--header-text);letter-spacing:-.02em}a{color:var(--link-color);text-underline-offset:2px;text-decoration:underline;transition:opacity .2s}a:hover{opacity:.7}.container{max-width:720px;margin:0 auto;padding:0 1.5rem}header{background-color:var(--header-bg);border-bottom:1px solid var(--border-color);z-index:100;margin-bottom:3rem;padding:1rem 0;position:sticky;top:0}header .container{justify-content:space-between;align-items:center;display:flex}.logo{cursor:pointer;font-size:1.4rem;font-weight:700;text-decoration:none}nav ul{align-items:center;gap:1.5rem;list-style:none;display:flex}nav a{color:var(--text-color);font-size:.9rem;font-weight:500;text-decoration:none}.btn-subscribe{background-color:var(--accent-color);color:#fff;cursor:pointer;border:none;border-radius:4px;padding:.5rem 1rem;font-size:.85rem;font-weight:600;transition:filter .2s}.btn-subscribe:hover{filter:brightness(1.1);opacity:1}main{padding-bottom:5rem}.blog-list{flex-direction:column;display:flex}.blog-card{border-bottom:1px solid var(--border-color);padding:2.5rem 0}.blog-card:last-child{border-bottom:none}.blog-card h2{margin-bottom:.75rem;font-size:1.75rem;line-height:1.3}.blog-card h2 a{text-decoration:none}.blog-card .date{color:#666;font-size:.85rem;font-family:var(--font-sans);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.5rem;font-weight:600;display:block}.blog-card .excerpt{color:#333;font-size:1.05rem;line-height:1.5;font-family:var(--font-serif)}.blog-post h1{margin-top:1rem;margin-bottom:1rem;font-size:2.8rem;line-height:1.1}.blog-post .meta{color:#666;border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color);margin-bottom:3rem;padding:1rem 0;font-size:.95rem}.markdown-body{color:var(--text-color);font-size:1.2rem;font-family:var(--font-serif);line-height:1.65}.markdown-body h2{margin-top:2.5rem;margin-bottom:1rem;font-size:1.8rem}.markdown-body p{margin-bottom:1.8rem}.markdown-body code{background-color:#f7f7f7;border-radius:3px;padding:.2rem .4rem;font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,monospace;font-size:.9rem}.markdown-body pre{border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color);background-color:#f7f7f7;border-radius:0;margin:2rem -1.5rem;padding:1.5rem;overflow-x:auto}.markdown-body pre code{background-color:#0000;padding:0}.back-link{color:#666;font-size:.9rem;font-weight:500;font-family:var(--font-sans);align-items:center;gap:.5rem;margin-bottom:2rem;text-decoration:none;display:inline-flex}.back-link:hover{color:var(--header-text);opacity:1}::selection{color:#1a1a1a;background-color:#fff9c4}