:root{--bg-white:#fff;--bg-light:#fafafa;--text-dark:#0f172a;--text-muted:#64748b;--text-body:#334155;--brand-yellow:#f5cd00;--border-dark:#0f172a;--shadow-pop:8px 8px 0px 0px #0f172a;--shadow-pop-yellow:8px 8px 0px 0px #f5cd00;--font-sans:var(--font-inter),var(--font-noto-sans-jp),"Inter","Noto Sans JP",sans-serif;--max-width:80rem;--header-height:6rem;--content-width:750px;--site-padding:56px}*{box-sizing:border-box}body{background-color:var(--bg-white);color:var(--text-dark);font-family:var(--font-sans);padding-top:var(--header-height);background-image:radial-gradient(var(--text-dark).2px,transparent .8px);background-size:24px 24px;flex-direction:column;min-height:100vh;margin:0;line-height:1.6;display:flex}@media (max-width:768px){:root{--site-padding:1.5rem}h1{font-size:1.75rem}h2{font-size:1.4rem}header>div{padding-left:var(--site-padding);padding-right:var(--site-padding)}main{padding:1.5rem var(--site-padding)}.post-grid{grid-template-columns:1fr}.markdown-body{font-size:1rem}}main{max-width:var(--max-width);padding:2.5rem var(--site-padding);flex:1;width:100%;margin:0 auto}main.main--narrow{max-width:var(--content-width)}h1{letter-spacing:-.02em;color:var(--text-dark);justify-content:center;margin-bottom:1.5rem;font-size:2.5rem;font-weight:900;line-height:1.1;display:flex}h2{color:var(--text-dark);margin:2rem 0 1.25rem;font-size:1.8rem;font-weight:900;display:inline-block;position:relative}h2:after{content:"";background:var(--brand-yellow);z-index:-1;opacity:.5;width:100%;height:10px;position:absolute;bottom:4px;left:0}h3{color:var(--text-dark);margin:0 0 1rem;font-size:1.25rem;font-weight:900}header{z-index:1000;background-color:#0000;width:100%;transition:all .3s cubic-bezier(.4,0,.2,1);position:fixed;top:0;left:0}header.scrolled{background-color:var(--text-dark);box-shadow:0 10px 15px -3px #0003}header>div{max-width:var(--max-width);height:var(--header-height);padding:0 var(--site-padding);justify-content:space-between;align-items:center;width:100%;margin:0 auto;display:flex}header .logo{font-family:var(--font-mplus-rounded),"M PLUS Rounded 1c",sans-serif;letter-spacing:-.05em;white-space:nowrap;color:var(--text-dark);background:var(--bg-white);border:3px solid var(--border-dark);box-shadow:var(--shadow-pop);border-radius:1.2rem;align-items:center;padding:.4rem 1rem;font-size:clamp(1.25rem,5vw,1.5rem);font-weight:800;text-decoration:none;transition:all .3s cubic-bezier(.4,0,.2,1);display:inline-flex}header.scrolled .logo{color:var(--bg-white);border-color:var(--bg-white);box-shadow:none;background:0 0}header .logo:hover{box-shadow:var(--shadow-pop-yellow);transform:translateY(-2px)}header.scrolled .logo:hover{box-shadow:none;color:var(--brand-yellow);border-color:var(--brand-yellow);transform:none}header .logo span{color:var(--brand-yellow)}header .nav-desktop{align-items:center;gap:1.5rem;font-size:.8rem;font-weight:700;display:flex}header.scrolled .nav-desktop{color:var(--bg-white);box-shadow:none}header .nav-link{color:inherit;cursor:pointer;font-size:inherit;font-weight:inherit;background:0 0;border:none;padding:.25rem 0;text-decoration:none;transition:color .3s;position:relative}header .nav-link:after{content:"";background-color:var(--brand-yellow);border-radius:2px;width:0;height:3px;transition:width .3s cubic-bezier(.175,.885,.32,1.275);position:absolute;bottom:-4px;left:50%;transform:translate(-50%)}header .nav-link:hover:after{width:100%}header .nav-link:hover{color:0}header .nav-btn,header .btn-preview{cursor:pointer;border-radius:.75rem;align-items:center;height:2.5rem;padding:.5rem 1.5rem;font-size:.8rem;font-weight:800;text-decoration:none;transition:all .2s;display:inline-flex}header .nav-btn{background:var(--brand-yellow);border:2px solid var(--border-dark);color:var(--text-dark)}header .btn-preview{background:var(--bg-white);border:2px solid var(--border-dark);color:var(--text-dark)}header .nav-btn:hover,header .btn-preview:hover{box-shadow:2px 2px 0px 0px var(--border-dark);transform:translateY(-2px)}header.scrolled .nav-btn{background:var(--brand-yellow);color:var(--text-dark);border-color:var(--brand-yellow)}header.scrolled .btn-preview{color:var(--bg-white);border-color:var(--bg-white);background:0 0}header.scrolled .btn-preview:hover{background:var(--bg-white);color:var(--text-dark);border-color:var(--bg-white)}header .nav-link--muted{color:var(--text-muted)}header.scrolled .nav-link--muted{color:#ffffff80}footer{border-top:4px solid var(--border-dark);text-align:center;background:var(--bg-white);margin-top:auto;padding:4rem 0}footer>div{max-width:var(--max-width);padding-left:var(--site-padding);padding-right:var(--site-padding);margin-left:auto;margin-right:auto}footer p{color:var(--text-dark);font-size:.9rem;font-weight:800}.post-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1.5rem;display:grid}.tag-filters{flex-wrap:wrap;justify-content:center;gap:.5rem;margin-bottom:2rem;display:flex}.tag-btn{background:var(--bg-white);border:2px solid var(--border-dark);color:var(--text-dark);cursor:pointer;box-shadow:2px 2px 0px 0px var(--border-dark);border-radius:1rem;padding:.4rem 1rem;font-size:.85rem;font-weight:700;transition:all .2s}.tag-btn:hover{box-shadow:2px 2px 0px 0px var(--brand-yellow);color:var(--brand-yellow);transform:translate(-1px,-1px)}.tag-btn.active{background:var(--brand-yellow);color:var(--text-dark);box-shadow:2px 2px 0px 0px var(--border-dark)}.article-card{background:var(--bg-white);border:4px solid var(--border-dark);color:var(--text-dark);box-shadow:var(--shadow-pop);border-radius:1.5rem;flex-direction:column;padding:1.5rem;text-decoration:none;transition:all .2s;display:flex}.article-card:hover{box-shadow:var(--shadow-pop-yellow);transform:translate(-2px,-2px)}.tag-pill{background:var(--brand-yellow);color:var(--text-dark);border-radius:.5rem;margin-bottom:.4rem;margin-right:.4rem;padding:.15rem .6rem;font-size:.75rem;font-weight:800;display:inline-block}.card-date{color:var(--text-muted);margin:.5rem 0 .25rem;font-size:.8rem;font-weight:500}.card-title{color:var(--text-dark);margin:0;font-size:1.1rem;font-weight:900;line-height:1.4}.detail-meta{flex-wrap:wrap;justify-content:center;align-items:center;gap:.5rem;margin-bottom:1.75rem;display:flex}.detail-title{margin-bottom:1rem}.detail-meta .date{color:var(--text-muted);font-size:.8rem;font-weight:700}.markdown-body{color:var(--text-body);font-size:1.05rem;line-height:1.75}.markdown-body h2{border-bottom:none;margin-top:2.5rem;margin-bottom:.75rem;padding-bottom:0;font-size:1.5rem;font-weight:900;display:inline-block;position:relative}.markdown-body h2:after{content:"";background:var(--brand-yellow);z-index:-1;opacity:.5;width:100%;height:8px;position:absolute;bottom:4px;left:0}.markdown-body h3{margin-top:1.75rem;margin-bottom:.5rem;font-size:1.25rem;font-weight:900}.markdown-body p{margin-bottom:1.25rem;font-weight:500}.markdown-body strong{color:var(--text-dark);font-weight:800}.markdown-body ul{margin-bottom:1.5rem;padding-left:1.5rem;list-style-type:disc}.markdown-body ol{margin-bottom:1.5rem;padding-left:1.5rem}.markdown-body li{margin-bottom:.65rem}.markdown-body li::marker{color:var(--brand-yellow);font-weight:900}.markdown-body a{color:var(--text-dark);text-underline-offset:4px;text-decoration:underline;text-decoration-thickness:2px;-webkit-text-decoration-color:var(--brand-yellow);text-decoration-color:var(--brand-yellow);font-weight:800;transition:all .2s}.markdown-body a:hover{background:var(--brand-yellow)}.markdown-body code{color:var(--text-dark);border:1px solid var(--border-dark);background:#f1f5f9;border-radius:.4rem;padding:.2rem .4rem;font-family:Fira Code,monospace;font-size:.9em}.markdown-body pre{border:3px solid var(--border-dark);box-shadow:6px 6px 0px 0px var(--brand-yellow);background:#0f172a;border-radius:1rem;margin:2rem 0;padding:1.25rem;overflow-x:auto}.markdown-body pre code{color:#f8fafc;background:0 0;border:none;padding:0}.markdown-body table{border-collapse:separate;border-spacing:0;border:4px solid var(--border-dark);width:100%;box-shadow:var(--shadow-pop);border-radius:1.5rem;margin:2rem 0;overflow:hidden}.markdown-body th,.markdown-body td{text-align:left;border-bottom:2px solid var(--border-dark);border-right:2px solid var(--border-dark);padding:1rem}.markdown-body th:last-child,.markdown-body td:last-child{border-right:none}.markdown-body tr:last-child td{border-bottom:none}.markdown-body th{background:var(--brand-yellow);color:var(--text-dark);font-weight:900}.markdown-body td{background:var(--bg-white);font-weight:500}.admin-header{justify-content:space-between;align-items:center;margin-bottom:1.5rem;display:flex}.admin-header h2{margin:0}.btn-yellow{background:var(--brand-yellow);border:2px solid var(--border-dark);color:var(--text-dark);cursor:pointer;border-radius:.75rem;align-items:center;padding:.5rem 1.5rem;font-size:.85rem;font-weight:800;text-decoration:none;transition:all .2s;display:inline-flex}.btn-yellow:hover{box-shadow:2px 2px 0px 0px var(--border-dark);transform:translateY(-2px)}table{border-collapse:separate;border-spacing:0;border:4px solid var(--border-dark);width:100%;box-shadow:var(--shadow-pop);border-radius:1.5rem;overflow:hidden}th,td{text-align:left;border-bottom:2px solid var(--border-dark);border-right:2px solid var(--border-dark);padding:1rem}th:last-child,td:last-child{border-right:none}tr:last-child td{border-bottom:none}th{background:var(--brand-yellow);color:var(--text-dark);font-weight:900}td{background:var(--bg-white);font-weight:500}#login-form{background:var(--bg-white);border:4px solid var(--border-dark);max-width:400px;box-shadow:var(--shadow-pop);border-radius:1.5rem;margin:2rem auto;padding:2rem}#login-form div{margin:1rem 0;display:block}#login-form label{margin-bottom:.25rem;font-weight:800;display:block}#login-form input{border:2px solid var(--border-dark);border-radius:.75rem;outline:none;width:100%;padding:.75rem 1rem;font-size:.9rem;font-weight:700;transition:all .2s;display:block}#login-form input:focus{box-shadow:2px 2px 0px 0px var(--brand-yellow)}#login-form button{background:var(--brand-yellow);border:3px solid var(--border-dark);width:100%;color:var(--text-dark);cursor:pointer;box-shadow:4px 4px 0px 0px var(--border-dark);border-radius:1rem;margin:1rem 0 0;padding:.75rem;font-size:1rem;font-weight:900;transition:all .2s}#login-form button:hover{box-shadow:4px 4px 0px 0px var(--brand-yellow);transform:translate(-2px,-2px)}#editor-title{margin-bottom:1.5rem;font-size:1.8rem;font-weight:900}#post-form{background:var(--bg-white);border:4px solid var(--border-dark);box-shadow:var(--shadow-pop);border-radius:1.5rem;padding:2rem}#post-form>div{margin-bottom:1.25rem}#post-form label{margin-bottom:.25rem;font-weight:800;display:block}#post-form input[type=text],#post-form input[type=datetime-local],#post-form textarea{border:2px solid var(--border-dark);box-sizing:border-box;border-radius:.75rem;outline:none;width:100%;padding:.75rem 1rem;font-size:.95rem;font-weight:500;transition:all .2s;display:block}#post-form input[type=text]:focus,#post-form input[type=datetime-local]:focus,#post-form textarea:focus{box-shadow:2px 2px 0px 0px var(--brand-yellow)}#post-form textarea{resize:vertical;min-height:200px}#post-form p{color:var(--text-muted);margin-top:.25rem;font-size:.85rem}#post-form div:last-of-type label{margin-right:.5rem;font-weight:400;display:inline}#post-form button{border:3px solid var(--border-dark);background:var(--bg-white);cursor:pointer;box-shadow:3px 3px 0px 0px var(--border-dark);border-radius:1rem;margin-top:.5rem;margin-right:.5rem;padding:.5rem 1.25rem;font-weight:800;transition:all .2s}#post-form button:hover{box-shadow:3px 3px 0px 0px var(--brand-yellow);transform:translate(-1px,-1px)}#post-form button[type=submit]{background:var(--brand-yellow)}#post-form a{color:var(--text-dark);text-decoration:underline;-webkit-text-decoration-color:var(--brand-yellow);text-decoration-color:var(--brand-yellow);font-weight:800;text-decoration-thickness:2px}#post-form a:hover{background:var(--brand-yellow)}