:root{
  --paper:#F4EFE3; --card:#FCFAF2; --ink:#15131A; --cobalt:#2B3AE0;
  --cobalt-deep:#1B25A8; --spot:#F2552E; --muted:#736C5C; --line:#E4DDCC;
  --font-display:"Futura","Avenir Next Condensed","Century Gothic",system-ui,sans-serif;
  --font-sans:"Avenir Next","Avenir",system-ui,"Segoe UI",Roboto,sans-serif;
  --font-mono:"SF Mono",ui-monospace,"JetBrains Mono",monospace;
}
*{box-sizing:border-box;}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-sans);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;}
::selection{background:var(--cobalt);color:#fff;}
/* paper grain — same authenticity texture as the app */
.grain{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.4;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='150'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");}
.wrap{position:relative;z-index:1;max-width:42rem;margin:0 auto;padding:2rem 1.5rem 5rem;}
.brand{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-display);font-weight:700;
  text-transform:uppercase;letter-spacing:-.01em;font-size:1.3rem;color:var(--ink);text-decoration:none;}
.ink-mark{filter:drop-shadow(2px 3px 0 rgba(43,58,224,.16));}
/* the sticky top bar — the way out has to be where the reader is, not where the article ends */
.topbar{position:sticky;top:0;z-index:2;display:flex;flex-wrap:wrap;align-items:baseline;gap:.4rem .9rem;
  margin:-2rem -1.5rem 0;padding:.9rem 1.5rem;background:color-mix(in srgb,var(--paper) 88%,transparent);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);}
.crumbs{display:flex;min-width:0;align-items:baseline;gap:.45rem;font-family:var(--font-mono);font-size:.7rem;
  text-transform:uppercase;letter-spacing:.08em;}
.crumbs a{color:var(--cobalt);text-decoration:none;} .crumbs a:hover{text-decoration:underline;}
.crumb-sep{color:var(--muted);}
/* the post's own title truncates rather than wraps: the bar is a place marker, not a headline */
.crumb-here{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);}
/* prev / next */
.adjacent{display:grid;gap:.75rem;margin-top:3rem;}
@media (min-width:34rem){.adjacent{grid-template-columns:1fr 1fr;}}
.adj{display:flex;flex-direction:column;gap:.35rem;border:1.5px solid var(--line);border-radius:14px;
  background:var(--card);padding:.9rem 1.1rem;text-decoration:none;color:var(--ink);
  transition:border-color .12s ease,transform .12s ease;}
.adj:hover{border-color:var(--cobalt);transform:translateY(-1px);}
.adj-next{text-align:right;}
/* an only child sits on the side it belongs to rather than stretching across both columns */
.adj-next:first-child{grid-column:2;}
.adj-label{font-family:var(--font-mono);font-size:.65rem;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);}
.adj-title{font-family:var(--font-display);font-weight:700;line-height:1.2;}
/* the footer the blog never had — it linked back only to / and to the app */
.blog-foot{margin-top:3.5rem;padding-top:1.75rem;border-top:2px solid var(--ink);}
.foot-cols{display:grid;gap:1.5rem;}
@media (min-width:34rem){.foot-cols{grid-template-columns:repeat(3,minmax(0,1fr));}}
.foot-head{margin:0;font-family:var(--font-mono);font-size:.62rem;text-transform:uppercase;letter-spacing:.2em;color:var(--muted);}
.foot-cols ul{list-style:none;margin:.5rem 0 0;padding:0;}
.foot-cols li a{display:inline-block;padding:.2rem 0;font-family:var(--font-mono);font-size:.72rem;
  color:var(--cobalt);text-decoration:none;}
.foot-cols li a:hover{text-decoration:underline;}
.foot-tag{margin-top:1.5rem;font-family:var(--font-mono);font-size:.68rem;color:var(--muted);}
.kicker{font-family:var(--font-mono);font-size:.7rem;text-transform:uppercase;letter-spacing:.2em;color:var(--cobalt);margin:0;}
.post-title{font-family:var(--font-display);font-weight:700;text-transform:uppercase;line-height:.95;
  font-size:clamp(2rem,7vw,2.8rem);margin:.5rem 0 0;}
.post-meta{font-family:var(--font-mono);font-size:.72rem;color:var(--muted);margin-top:.6rem;}
article{margin-top:2.5rem;}
.tags{margin-top:2.5rem;}
.tag{display:inline-block;border:1.5px solid var(--ink);border-radius:999px;padding:.12rem .6rem;
  margin:.2rem .35rem 0 0;font-family:var(--font-mono);font-size:.65rem;text-transform:uppercase;letter-spacing:.08em;
  color:var(--ink);text-decoration:none;transition:background .12s ease,color .12s ease,border-color .12s ease;}
a.tag:hover{background:var(--cobalt);color:#fff;border-color:var(--cobalt);}
.topic-count{opacity:.5;}
/* index — browse by topic */
.topics{margin-top:3rem;padding-top:1.5rem;border-top:2px solid var(--line);}
.topics-head{font-family:var(--font-display);font-weight:700;text-transform:uppercase;font-size:1rem;letter-spacing:.05em;margin:0;}
.topic-list{margin-top:.9rem;}
/* prose — copied from index.css .markdown rules so posts match the app */
.prose{margin-top:1.8rem;font-size:1.05rem;}
.prose>*+*{margin-top:1rem;line-height:1.75;}
.prose p{line-height:1.75;}
.prose h2{font-family:var(--font-display);font-weight:700;text-transform:uppercase;font-size:1.5rem;line-height:1.15;margin-top:2.4rem;}
.prose h3{font-weight:700;font-size:1.15rem;margin-top:1.8rem;}
.prose ul{list-style:disc;padding-left:1.25rem;} .prose ol{list-style:decimal;padding-left:1.25rem;}
.prose li{margin-top:.25rem;line-height:1.7;}
.prose blockquote{border-left:3px solid var(--cobalt);padding-left:.9rem;font-style:italic;color:var(--muted);margin-left:0;}
.prose a{color:var(--cobalt);text-decoration:underline;text-underline-offset:2px;}
.prose strong{font-weight:700;} .prose em{font-style:italic;}
.prose code{background:color-mix(in srgb,var(--ink) 10%,transparent);border-radius:4px;padding:.05rem .3rem;font-family:var(--font-mono);font-size:.85em;}
.prose pre{background:var(--card);border:1.5px solid var(--line);border-radius:12px;padding:1rem;overflow:auto;}
.prose pre code{background:none;padding:0;}
.prose hr{border:0;border-top:2px solid var(--line);margin:2rem 0;}
/* index */
.index-head{margin-top:2.5rem;}
.index-title{font-family:var(--font-display);font-weight:700;text-transform:uppercase;font-size:clamp(2.6rem,10vw,4rem);line-height:.9;margin:.5rem 0 0;}
.index-tagline{margin-top:1rem;color:var(--muted);font-size:1.05rem;max-width:32rem;}
.cards{margin-top:2.5rem;display:grid;gap:1.2rem;}
.card{display:block;border:2px solid var(--ink);background:var(--card);border-radius:22px;padding:1.4rem 1.5rem;
  text-decoration:none;color:var(--ink);box-shadow:6px 6px 0 var(--cobalt);transition:transform .12s ease;}
.card:hover{transform:translate(-2px,-2px);}
.card h2{font-family:var(--font-display);font-weight:700;text-transform:uppercase;font-size:1.4rem;line-height:1.05;margin:.4rem 0 0;}
.card .dek{margin-top:.5rem;color:var(--muted);font-size:.95rem;line-height:1.5;}