:root{--ink:#f0f6ff;--muted:#8d9aab;--paper:#070b12;--line:#263241;--blue:#53e7ff;--panel:#0c121c;--mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace}
*{box-sizing:border-box}
html{font-size:16px}
body{margin:0;background-color:var(--paper);background-image:linear-gradient(rgba(83,231,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(83,231,255,.025) 1px,transparent 1px);background-size:32px 32px;color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65}
.site-header{height:88px;display:flex;align-items:center;justify-content:space-between;max-width:1200px;margin:auto;padding:0 32px;border-bottom:1px solid var(--line)}
.identity{color:inherit;text-decoration:none;display:flex;flex-direction:column;line-height:1.2}
.identity strong{font-family:var(--mono);font-size:1.22rem;letter-spacing:.08em;text-transform:uppercase}
.identity span{font-family:var(--mono);font-size:.7rem;color:var(--muted);margin-top:6px}
.site-header nav{display:flex;gap:28px}
.site-header nav a,.back{font-family:var(--mono);color:var(--muted);text-decoration:none;font-weight:650;font-size:.84rem;text-transform:uppercase;letter-spacing:.06em}
.site-header nav a:hover,.back:hover{color:var(--blue)}
main{max-width:1200px;margin:auto;padding:0 32px}
.intro{padding:100px 0 88px;max-width:980px}
.eyebrow{font-family:var(--mono);text-transform:uppercase;letter-spacing:.16em;font-weight:750;color:var(--blue);font-size:.75rem}
.intro h1,.article-wrap h1{font-family:var(--mono);font-size:clamp(3rem,7vw,6.4rem);font-weight:700;line-height:.98;letter-spacing:-.065em;margin:22px 0 30px;text-transform:uppercase}
.intro h1:after{content:"_";color:var(--blue);animation:blink 1.1s steps(1) infinite}
.intro>p:last-child{font-size:1.1rem;color:var(--muted);max-width:560px}
.archive{display:grid;grid-template-columns:230px minmax(0,1fr);background:rgba(12,18,28,.94);border:1px solid var(--line);margin-bottom:72px;overflow:hidden}
.category-nav{border-right:1px solid var(--line);padding:16px}
.category-drawer{position:sticky;top:16px}
.category-drawer>summary{padding:12px 10px;color:var(--blue);font-family:var(--mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;cursor:pointer;list-style:none;border-bottom:1px solid var(--line)}
.category-drawer>summary:after{content:"+";float:right}
.category-drawer[open]>summary:after{content:"−"}
.category-list{max-height:68vh;overflow-y:auto;padding-top:8px;scrollbar-width:thin}
.category-nav button{width:100%;display:flex;justify-content:space-between;gap:12px;padding:11px 10px;border:0;border-left:2px solid transparent;background:transparent;color:var(--muted);font-family:var(--mono);font-size:.78rem;text-align:left;cursor:pointer}
.category-nav button:hover,.category-nav button[aria-pressed=true]{color:var(--blue);background:#111b29;border-left-color:var(--blue)}
.category-nav button b{font-weight:500}
.category-group{border-top:1px solid rgba(38,50,65,.55)}
.category-group>summary{display:flex;justify-content:space-between;gap:10px;padding:12px 10px;color:var(--ink);font-family:var(--mono);font-size:.78rem;cursor:pointer}
.category-group>summary b{color:var(--muted);font-weight:500}
.category-group>summary:hover,.category-group>summary[aria-pressed=true]{color:var(--blue);background:#111b29}
.category-group>summary:before{content:"▸";color:var(--blue)}
.category-group[open]>summary:before{content:"▾"}
.category-group>summary span{flex:1}
.category-item button{padding-left:24px;font-size:.74rem}
.category-item .category-item button{padding-left:38px;color:#77879a}
.category-item button span:before{content:"└ ";color:var(--line)}
.archive-content{min-width:0}
.archive-head{padding:24px 28px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
.archive-head h2{margin:0;font-family:var(--mono);font-size:1.25rem;text-transform:uppercase;letter-spacing:.08em}
.archive-head span{font-family:var(--mono);color:var(--blue);font-size:.8rem}
.posts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
.post-card{padding:30px 28px;min-height:250px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:background .2s ease}
.post-card:nth-child(2n){border-right:0}
.post-card:hover{background:#111b29}
.post-card[hidden]{display:none}
.post-card>p{font-family:var(--mono);color:var(--blue);font-size:.7rem;font-weight:750;text-transform:uppercase;letter-spacing:.08em}
.post-card h2{font-family:var(--mono);font-size:1.3rem;line-height:1.2;margin:16px 0;letter-spacing:-.035em}
.post-card h2 a{color:inherit;text-decoration:none}
.post-card h2 a:hover{color:var(--blue)}
.post-card>div{font-size:.9rem;color:var(--muted)}
.load-more{display:block;margin:24px auto;padding:11px 18px;border:1px solid var(--blue);background:transparent;color:var(--blue);font-family:var(--mono);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;cursor:pointer}
.load-more:hover{background:var(--blue);color:var(--paper)}
.load-more[hidden]{display:none}
.article-wrap{max-width:820px;padding-top:56px;padding-bottom:96px}
.back{display:inline-block;margin-bottom:75px}
.article-wrap h1{font-size:clamp(2.7rem,7vw,5.4rem);margin-bottom:60px}
.article-wrap h1:after{content:none}
.prose{font-family:Georgia,"Times New Roman",serif;color:#d9e2ee;font-size:1.18rem;line-height:1.85}
.prose p{margin:0 0 1.6em}
.prose h2,.prose h3{font-family:var(--mono);color:var(--ink);line-height:1.25;margin-top:2.2em}
.prose img{max-width:100%;height:auto;border:1px solid var(--line)}
.prose a{color:var(--blue)}
footer{max-width:1200px;margin:auto;padding:36px 32px 56px;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:var(--muted);font-family:var(--mono);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}
@keyframes blink{50%{opacity:0}
}
@media(prefers-reduced-motion:reduce){.intro h1:after{animation:none}
}
@media(max-width:850px){.archive{grid-template-columns:1fr}
.category-nav{border-right:0;border-bottom:1px solid var(--line);padding:10px 14px}
.category-drawer{position:static}
.category-list{max-height:52vh}
}
@media(max-width:580px){.site-header{height:78px;padding:0 20px}
.identity span{display:none}
.site-header nav{gap:18px}
main{padding:0 20px}
.intro{padding:70px 0 58px}
.intro h1{font-size:3rem}
.posts{grid-template-columns:1fr}
.post-card{border-right:0;min-height:auto}
.archive-head{padding:20px}
.article-wrap{padding-top:36px}
.back{margin-bottom:48px}
.article-wrap h1{margin-bottom:42px}
footer{padding:28px 20px 44px;flex-direction:column;gap:8px}
}