:root{--bg: #ffffff;--text: #1a1a1a;--muted: #666666;--border: #e0e0e0;--accent: #0066cc;--code-bg: #f5f5f5;--pre-bg: #1e1e1e;--pre-text: #d4d4d4;--max-width: 720px;--wide-width: 960px}*{box-sizing:border-box}html{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Hiragino Kaku Gothic ProN,Hiragino Sans,Meiryo,sans-serif;font-size:16px;line-height:1.6}body{margin:0}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}.site-shell{max-width:var(--wide-width);margin:0 auto;padding:0 1.5rem}.site-header{display:flex;align-items:center;justify-content:space-between;padding:1.5rem 0;border-bottom:1px solid var(--border);margin-bottom:2rem}.brand{display:inline-flex;align-items:baseline;gap:.5rem}.brand strong{font-size:1.1rem;font-weight:700;color:var(--text)}.brand small{color:var(--muted);font-size:.85rem}.site-nav{display:flex;gap:1.25rem}.site-nav a{color:var(--muted);font-size:.9rem}.site-nav a:hover{color:var(--text)}main{padding-bottom:3rem}h1,h2,h3,h4{margin:0 0 .75rem;line-height:1.3;font-weight:700}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.2rem}p,li{line-height:1.7}.meta,.article-meta{color:var(--muted);font-size:.85rem}.hero{text-align:center;margin-bottom:3rem}.hero-copy{max-width:48rem;margin:0 auto}.hero-copy h1{font-size:2.2rem;margin-bottom:1rem}.hero-text{color:var(--muted);max-width:40rem;margin-left:auto;margin-right:auto}.hero-actions{display:flex;gap:.75rem;margin-top:1.25rem;justify-content:center}.button{display:inline-block;padding:.5rem 1rem;border:1px solid var(--border);font-size:.9rem;border-radius:4px}.button:hover{text-decoration:none;background:var(--code-bg)}.button-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.button-primary:hover{background:#05a}.feature-card{border:1px solid var(--border);padding:1.25rem}.feature-card .card-label{font-size:.75rem;text-transform:uppercase;color:var(--muted);margin:0 0 .5rem}.feature-card h2{font-size:1.2rem;margin-bottom:.5rem}.feature-card h2 a{color:var(--text)}.feature-card p{color:var(--muted);font-size:.9rem;margin:0}.section-grid{margin-top:2rem}.section-heading{text-align:center}.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-top:1rem}.post-card{border-top:2px solid var(--border);padding-top:.75rem}.post-thumbnail{display:block;margin-bottom:.75rem}.post-thumbnail img,.archive-thumbnail img,.article-thumbnail{display:block;width:100%;height:auto;aspect-ratio:1200 / 630;object-fit:contain;border-radius:6px}.post-card .meta{margin:0 0 .4rem}.post-card h3{font-size:1rem;margin-bottom:.4rem}.post-card h3 a{color:var(--text)}.post-card p{color:var(--muted);font-size:.85rem;margin:0}.page-intro{margin-bottom:2rem}.page-intro h1{margin-bottom:1rem}.page-intro p{color:var(--muted);max-width:48rem}.archive-list{display:flex;flex-direction:column;gap:1.5rem}.archive-item{padding-bottom:1.5rem;border-bottom:1px solid var(--border);display:flex;align-items:flex-start;gap:1rem}.archive-copy{flex:1}.archive-thumbnail{flex:0 0 220px;order:2}.archive-item:last-child{border-bottom:none}.archive-meta{display:flex;align-items:center;flex-wrap:wrap;gap:.55rem;margin:0 0 .3rem;color:var(--muted);font-size:.88rem;font-weight:600}.archive-item h2{font-size:1.15rem;margin-bottom:.4rem}.archive-item h2 a{color:var(--text)}.archive-item p{color:var(--muted);font-size:.9rem;margin:0}.category-pill{display:inline-flex;align-items:center;min-height:1.55rem;padding:.1rem .55rem;border-radius:999px;background:#eef5ff;color:var(--accent);font-size:.78rem;font-weight:700;line-height:1}.category-pill:hover{text-decoration:none;background:#e3efff}.article-category{display:inline-flex;align-items:center;width:fit-content;margin:.85rem 0 0;padding:.25rem .55rem;border:1px solid var(--border);border-radius:999px;background:var(--bg);font-size:.85rem;color:var(--muted)}.article-category a{color:var(--text);font-weight:600}.category-list{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.category-card{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem;border:1px solid var(--border);border-radius:6px;color:var(--text)}.category-card:hover{background:var(--code-bg);text-decoration:none}.category-card small{color:var(--muted);white-space:nowrap}.tag-list{display:flex;flex-wrap:wrap;gap:.4rem;padding:0;margin:.75rem 0 0;list-style:none}.tag-list li{padding:.2rem .6rem;border:1px solid var(--border);border-radius:3px;font-size:.8rem;color:var(--muted)}.article-shell{max-width:var(--max-width);margin:0 auto}.article-header{padding-bottom:1.5rem;border-bottom:1px solid var(--border);margin-bottom:2rem}.article-header h1{font-size:2rem;margin-bottom:.75rem}.article-thumbnail{margin-top:1.5rem}.article-lead{color:var(--muted);font-size:1.05rem;margin-bottom:1rem}.article-meta{display:flex;gap:1rem;margin-bottom:.75rem}.article-body{line-height:1.8}.article-body p,.article-body li{letter-spacing:.12em}.article-body code,.article-body pre{letter-spacing:0}.article-body h2{margin-top:2.5rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}.article-body h3{margin-top:2rem}.article-body p{margin:1rem 0}.article-body ul,.article-body ol{padding-left:1.5rem}.article-body li{margin:.4rem 0}.article-body code{padding:.15rem .35rem;background:var(--code-bg);font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:.88em;border-radius:3px}.article-body pre{overflow:auto;padding:1rem;background:var(--pre-bg);color:var(--pre-text);border-radius:4px;font-size:.88rem;line-height:1.5}.article-body pre code{padding:0;background:transparent;color:inherit}.article-body blockquote{margin:1.5rem 0;padding:.75rem 1rem;border-left:3px solid var(--border);color:var(--muted)}.article-body img{display:block;width:auto;max-width:min(100%,640px);margin:1.5rem auto;border-radius:4px}.article-body table{width:100%;border-collapse:collapse;margin:1.5rem 0}.article-body th,.article-body td{padding:.5rem .75rem;border:1px solid var(--border);text-align:left}.article-body th{background:var(--code-bg);font-weight:600}.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}.about-content{max-width:var(--max-width);margin:0 auto}.about-section{margin-bottom:2.5rem}.about-section h2{font-size:1.4rem;margin-bottom:1rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}.about-section p{color:var(--muted);line-height:1.8;margin:0 0 1rem}.about-section p:last-child{margin-bottom:0}.site-info{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.9rem}.site-info th,.site-info td{padding:.5rem .75rem;border:1px solid var(--border);text-align:left}.site-info th{width:8rem;background:var(--code-bg);font-weight:600;color:var(--text)}.site-info td{color:var(--muted)}.info-panel{border:1px solid var(--border);padding:1.25rem}.info-panel h2{font-size:1.1rem;margin-bottom:.5rem}.info-panel p{color:var(--muted);font-size:.9rem;margin:0}.site-footer{padding:1.5rem 0;border-top:1px solid var(--border);font-size:.85rem;color:var(--muted)}@media(max-width:768px){.hero,.post-grid,.category-list,.about-grid{grid-template-columns:1fr}.archive-item{flex-direction:column}.archive-thumbnail{flex:none;order:0;width:100%}.site-header{flex-direction:column;align-items:flex-start;gap:1rem}}