*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:#e2e8f0;background:#000;min-height:100vh}.main-container{display:grid;grid-template-columns:320px 1fr;gap:0}.main-container.no-sidebar{grid-template-columns:1fr}.main-container.no-sidebar .content{max-width:none;width:100%;margin:1rem 0}.sidebar{background:#050a1a;backdrop-filter:blur(20px);border-right:1px solid #95ddf9;padding:2rem 1.5rem;position:sticky;top:0;left:0;box-shadow:4px 0 20px #000;align-self:start}.sidebar-section{margin-bottom:2.5rem;padding:1.5rem;background:#0a0f22;border:1px solid #95ddf9;box-shadow:0 8px 32px #000;transition:all .3s ease}.sidebar-section:hover{transform:translateY(-2px);box-shadow:0 12px 40px #000;background:#0a0f22;border-color:#ffff35}.sidebar-section h3{color:#e2e8f0;font-size:1.1rem;font-weight:600;margin-bottom:1rem;padding-bottom:.5rem;border-bottom:2px solid #95ddf9;position:relative}.sidebar-section h3:after{content:"";position:absolute;bottom:-2px;left:0;width:30px;height:2px;background:linear-gradient(90deg,#00008c)}.sidebar-section ul{list-style:none}.sidebar-section li{margin-bottom:.5rem}.sidebar-section a{color:#cbd5e0;text-decoration:none;padding:.5rem .75rem;display:block;transition:all .2s ease;font-size:.95rem;position:relative;overflow:hidden;border-left:3px solid transparent}.sidebar-section a:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,#95ddf9,transparent);transition:left .5s ease}.sidebar-section a:hover:before{left:100%}.sidebar-section a:hover{color:#f5faff;background:#05008d;transform:translate(5px);border-left-color:#95ddf9}.content{padding:2rem 3rem;background:#0f0f23;backdrop-filter:blur(20px);margin:1rem 0}header{background:#0f0f23;backdrop-filter:blur(20px);padding:1rem 2rem;box-shadow:0 4px 20px #000;position:sticky;top:0;z-index:100;border-bottom:1px solid #95ddf9}nav{display:flex;justify-content:center;gap:2rem;max-width:1200px;margin:0 auto}nav a{color:#cbd5e0;text-decoration:none;padding:.75rem 1.5rem;font-weight:500;transition:all .3s ease;position:relative;overflow:hidden;border-bottom:2px solid transparent}nav a:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,#95ddf9,transparent);transition:left .5s ease}nav a:hover:before{left:100%}nav a:hover{color:#f5faff;background:#95ddf91a;transform:translateY(-2px);border-bottom-color:#000d87}.menu-toggle{display:none;background:#0f0f23;color:#e2e8f0;border:1px solid #95ddf9;padding:.5rem .75rem;border-radius:6px;font-size:1.25rem}footer{background:#0f0f23;backdrop-filter:blur(20px);text-align:center;padding:1.5rem;color:#cbd5e0;border-top:1px solid #95ddf9;box-shadow:0 -4px 20px #000}.error-content{text-align:center;padding:4rem 2rem;max-width:800px;margin:0 auto}.error-header{margin-bottom:3rem}.error-code{font-size:8rem;font-weight:900;color:#ffff32;text-shadow:0 0 30px #95ddf9;margin-bottom:1rem;line-height:1}.error-title{font-size:2.5rem;color:#e2e8f0;margin-bottom:1rem}.error-description{font-size:1.2rem;color:#cbd5e0;line-height:1.6}.error-actions{display:flex;gap:1.5rem;justify-content:center;margin-bottom:3rem;flex-wrap:wrap}.home-button,.blog-button{display:inline-block;padding:1rem 2rem;background:linear-gradient(135deg,#00008c,#000);color:#fff;text-decoration:none;font-weight:600;font-size:1.1rem;transition:all .3s ease;box-shadow:0 4px 15px #95ddf94d}.home-button:hover,.blog-button:hover{transform:translateY(-3px);box-shadow:0 8px 25px #95ddf966;background:linear-gradient(135deg,#000d87,#95ddf9)}.error-help{background:#1a1a2ecc;padding:2rem;margin-bottom:2rem;border:1px solid rgba(149,221,249,.2)}.error-help h3{color:#e2e8f0;font-size:1.3rem;margin-bottom:1.5rem}.error-help ul{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.error-help li{margin-bottom:.5rem}.error-help a{color:#ffff35;text-decoration:none;padding:.5rem 1rem;display:block;transition:all .2s ease;background:#95ddf91a}.error-help a:hover{background:#95ddf933;color:#95ddf9;transform:translate(5px)}.error-footer{color:#a0aec0;font-size:.95rem}.error-footer a{color:#ffff35;text-decoration:none}.error-footer a:hover{text-decoration:underline}.error-description s{color:#a0aec0;font-style:italic;text-decoration:line-through;text-decoration-color:#000d87;text-decoration-thickness:2px;opacity:.8;transition:all .3s ease}.error-description s:hover{opacity:1;color:#cbd5e0;text-decoration-color:#95ddf9}.reload-button{display:inline-block;padding:1rem 2rem;background:linear-gradient(135deg,#e53e3e,#c53030);color:#fff;text-decoration:none;font-weight:600;font-size:1.1rem;transition:all .3s ease;box-shadow:0 4px 15px #e53e3e4d;border:none;cursor:pointer;font-family:inherit}.reload-button:hover{transform:translateY(-3px);box-shadow:0 8px 25px #e53e3e66;background:linear-gradient(135deg,#d53f8c,#b83280)}.blog-content{max-width:800px;margin:0 auto}.blog-posts{display:grid;gap:2rem;margin-top:2rem}.blog-post{background:#1a1a2ecc;padding:2rem;border:1px solid rgba(149,221,249,.2);box-shadow:0 8px 32px #0006;transition:all .3s ease}.blog-post:hover{transform:translateY(-4px);box-shadow:0 16px 48px #0009;border-color:#95ddf966}.blog-post h2{margin-bottom:1rem}.blog-post h2 a{color:#e2e8f0;text-decoration:none;transition:color .3s ease}.blog-post h2 a:hover{color:#95ddf9}.post-meta{display:flex;gap:1rem;margin-top:1rem;font-size:.9rem;color:#a0aec0}.post-meta span{display:flex;align-items:center;gap:.25rem}.blog-image{max-width:50%;width:600px;height:auto}.home-content{max-width:900px;margin:0 auto}.welcome-text{font-size:1.2rem;color:#cbd5e0;margin-bottom:3rem;text-align:center;line-height:1.8}.home-index-space{height:100px}.featured-section{margin:3rem 0}.featured-posts{display:grid;gap:2rem;margin-top:2rem}.featured-post{background:#1a1a2ecc;padding:2rem;border:1px solid rgba(149,221,249,.2);box-shadow:0 8px 32px #0006;transition:all .3s ease}.featured-post:hover{transform:translateY(-4px);box-shadow:0 16px 48px #0009;border-color:#95ddf966}.about-section{background:#1a1a2ecc;padding:2rem;border:1px solid rgba(149,221,249,.2);box-shadow:0 8px 32px #0006;margin:3rem 0}// index用Diff .diff{font-family:monospace;white-space:pre;padding:10px}//後で書く .diff-day{}.added{background:#135c244d;color:#e6ffed}.removed{background:#b31d284d;color:#ffeef0}.hobby-content{max-width:900px;margin:0 auto}.hobby-categories{margin:3rem 0}.category-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-top:2rem}.category-card{background:#1a1a2ecc;padding:2rem;border:1px solid rgba(149,221,249,.2);box-shadow:0 8px 32px #0006;transition:all .3s ease;text-align:center}.category-card:hover{transform:translateY(-4px);box-shadow:0 16px 48px #0009;border-color:#95ddf966}.category-card h3{margin-bottom:1rem;color:#e2e8f0}.category-card p{color:#a0aec0;margin-bottom:1.5rem}.category-link{display:inline-block;padding:.75rem 1.5rem;background:linear-gradient(135deg,#000d87,#95ddf9);color:#fff;text-decoration:none;font-weight:500;transition:all .3s ease;border:1px solid rgba(149,221,249,.3)}.category-link:hover{transform:translateY(-2px);box-shadow:0 8px 24px #95ddf966;border-color:#95ddf999}.recent-hobby-posts{margin:3rem 0}.hobby-posts{display:grid;gap:2rem;margin-top:2rem}.hobby-post{background:#1a1a2ecc;padding:2rem;border:1px solid rgba(149,221,249,.2);box-shadow:0 8px 32px #000;transition:all .3s ease}.hobby-post:hover{transform:translateY(-4px);box-shadow:0 16px 48px #0009;border-color:#95ddf966}.hobby-about{background:#1a1a2ecc;padding:2rem;border:1px solid rgba(149,221,249,.2);box-shadow:0 8px 32px #0006;margin:3rem 0}.category-header{text-align:center;margin-bottom:3rem;padding:2rem;background:#1a1a2ecc;border:1px solid rgba(149,221,249,.2);box-shadow:0 8px 32px #0006}.category-posts{display:grid;gap:2rem;margin-bottom:3rem}.category-post{background:#1a1a2ecc;padding:2rem;border:1px solid rgba(149,221,249,.2);box-shadow:0 8px 32px #0006;transition:all .3s ease}.category-post:hover{transform:translateY(-4px);box-shadow:0 16px 48px #0009;border-color:#95ddf966}.category-navigation{text-align:center;margin-top:3rem}.back-link{display:inline-block;padding:1rem 2rem;background:linear-gradient(135deg,#00008c,#000);color:#fff;text-decoration:none;font-weight:500;transition:all .3s ease;border:1px solid rgba(149,221,249,.3)}.back-link:hover{transform:translateY(-2px);box-shadow:0 8px 24px #95ddf966;border-color:#95ddf999}.post-header{margin-bottom:3rem;padding:2rem;background:#1a1a2ecc;border:1px solid rgba(149,221,249,.2);box-shadow:0 8px 32px #0006}.breadcrumb{margin-bottom:1.5rem;font-size:.9rem;color:#a0aec0}.breadcrumb a{color:#ffff35;text-decoration:none}.breadcrumb a:hover{text-decoration:underline}.post-content{line-height:1.8;font-size:1.1rem}.post-content h2{color:#e2e8f0;margin:2rem 0 1rem;padding-bottom:.5rem;border-bottom:2px solid rgba(149,221,249,.3)}.post-content h3{color:#cbd5e0;margin:1.5rem 0 1rem}.post-content p{margin-bottom:1.5rem;color:#cbd5e0}.post-content ul,.post-content ol{margin-bottom:1.5rem;padding-left:2rem}.post-content li{margin-bottom:.5rem;color:#cbd5e0}.post-content code{background:#95ddf933;padding:.2rem .4rem;font-family:Courier New,monospace;color:#ffff35}.post-content pre{background:#1a1a2e;color:#e2e8f0;padding:1.5rem;overflow-x:auto;margin:1.5rem 0;border:1px solid rgba(149,221,249,.2)}.post-content pre code{background:none;color:inherit;padding:0}.shiki{overflow-x:auto;font-family:JetBrains Mono;font-size:1.01rem}.post-navigation{margin-top:3rem;text-align:center}@media (max-width: 1024px){.main-container{grid-template-columns:280px 1fr}.sidebar{padding:1.5rem 1rem}.content{padding:1.5rem 2rem}}@media (max-width: 768px){.main-container{grid-template-columns:1fr;grid-template-rows:auto 1fr}.sidebar{height:auto;position:relative;border-right:none;border-bottom:1px solid rgba(149,221,249,.3);box-shadow:0 4px 20px #00000080}.content{margin:0 1rem 1rem}.sidebar-section{padding:1rem;margin-bottom:1.5rem}nav{position:absolute;left:0;right:0;top:64px;display:none;flex-direction:column;gap:0;background:#0f0f23fa;border-bottom:1px solid rgba(149,221,249,.3);padding:.5rem 0}nav.open{display:flex}nav a{padding:1rem 1.5rem;border-bottom:1px solid rgba(149,221,249,.15)}.menu-toggle{display:inline-block}.category-grid{grid-template-columns:1fr}.error-code{font-size:6rem}.error-title{font-size:2rem}.error-actions{flex-direction:column;align-items:center}.home-button,.blog-button,.reload-button{width:100%;max-width:300px;text-align:center}.error-help ul{grid-template-columns:1fr}}