/* =============================================================
   Chrono Log — Ghost Theme (Publication profile)
   Design system: chrono-design-system / profiles/publication
   Inherits Chrono parent (Plex Sans + Mono, grayscale, 2px,
   hairlines, no shadows). Adds: Plex Serif editorial register,
   the Chrono Core sphere mark, and surgical public blue #1655A3.
   Layout: left-aligned, structured "log/ledger" — not a centered blog.
   ============================================================= */

:root{
  /* Palette — grayscale + surgical public blue */
  --ink:#0A0A0A; --paper:#FAFAFA; --mid:#6B7280; --rule:#E5E7EB; --body:#1F1F1F;
  --blue:#1655A3; --blue-tint:#EEF3FA;

  /* Type */
  --font-sans:"IBM Plex Sans",-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  --font-serif:"IBM Plex Serif",Georgia,"Times New Roman",serif;
  --font-mono:"IBM Plex Mono","SF Mono",Consolas,monospace;

  /* Layout */
  --wrap:1080px; --read:680px;

  /* Geometry */
  --radius:2px; --hair:1px solid var(--rule);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--body);
  font-family:var(--font-sans);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  font-feature-settings:"ss01","ss03";
}
img,video,svg{max-width:100%;height:auto;display:block}
::selection{background:var(--ink);color:var(--paper)}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
button,input,textarea,select{font:inherit;color:inherit}

.sphere{width:26px;height:26px;flex:none}

/* Mono label — the universal Chrono small-caps replacement */
.label{
  font-family:var(--font-mono);font-size:11px;font-weight:400;
  letter-spacing:.14em;text-transform:uppercase;color:var(--mid);
}
.label a{color:var(--mid);text-decoration:none}
.label a:hover{color:var(--ink)}

/* Section rule — hairline 120px centered */
.section-rule{border:0;border-top:var(--hair);width:120px;margin:3.5rem auto}

/* =============================================================
   Header
   ============================================================= */
.hdr{position:sticky;top:0;z-index:10;background:rgba(250,250,250,.9);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:var(--hair)}
.hdr-in{max-width:var(--wrap);margin:0 auto;padding:.85rem 1.5rem;
  display:flex;align-items:center;justify-content:space-between;gap:1.5rem}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-name{font-family:var(--font-sans);font-weight:500;font-size:1.05rem;
  letter-spacing:-.01em;color:var(--ink)}
.hdr-nav{display:flex;align-items:center;gap:1.5rem}
.hdr-nav .nav{list-style:none;margin:0;padding:0;display:flex;gap:1.5rem}
.hdr-nav .nav-item{margin:0}
.hdr-nav .nav-link{color:var(--mid);text-decoration:none}
.hdr-nav .nav-link:hover{color:var(--ink)}
.hdr-nav .nav-current .nav-link{color:var(--ink)}
.btn-sub{border:1px solid var(--ink);color:var(--ink);padding:.4rem .85rem;
  border-radius:var(--radius);text-decoration:none;transition:background .12s,color .12s}
.btn-sub:hover{background:var(--ink);color:var(--paper);text-decoration:none}

/* =============================================================
   Home hero
   ============================================================= */
.hero{max-width:var(--wrap);margin:0 auto;padding:4.5rem 1.5rem 2.5rem}
.hero-grid{display:grid;grid-template-columns:1.35fr .9fr;gap:3rem;align-items:end}
.hero .label{margin:0}
.hero h1{font-family:var(--font-sans);font-weight:500;
  font-size:clamp(2.4rem,5vw,3.6rem);line-height:1.04;letter-spacing:-.035em;
  color:var(--ink);margin:.9rem 0 0}
.hero .sub{color:var(--mid);font-size:1.1rem;line-height:1.5;max-width:46ch;margin:1.1rem 0 0}

.sub-box{border:var(--hair);border-radius:var(--radius);padding:1.4rem;background:#fff}
.sub-box .label{margin:0 0 .7rem}
.sub-box p{margin:0 0 1rem;font-size:.95rem;color:var(--body)}
.sub-form{display:flex;gap:.5rem}
.sub-form input{flex:1;min-width:0;border:var(--hair);border-radius:var(--radius);
  padding:.55rem .7rem;font-size:.9rem;background:var(--paper)}
.sub-form input:focus{outline:none;border-color:var(--blue)}
.sub-form button{background:var(--blue);color:#fff;border:0;border-radius:var(--radius);
  padding:.55rem 1rem;font-size:.9rem;font-weight:500;cursor:pointer;font-family:var(--font-sans);white-space:nowrap}
.sub-form button:hover{opacity:.92}

/* =============================================================
   The Log — index / ledger
   ============================================================= */
.site-main{min-height:60vh}
.log{max-width:var(--wrap);margin:0 auto;padding:1rem 1.5rem 4rem}
.log-head{display:flex;align-items:baseline;justify-content:space-between;
  border-bottom:2px solid var(--ink);padding-bottom:.7rem;margin-bottom:0}
.log-head h2{font-family:var(--font-mono);font-weight:500;font-size:.8rem;
  letter-spacing:.14em;text-transform:uppercase;color:var(--ink);margin:0}

.note{display:grid;grid-template-columns:150px 1fr;gap:2rem;
  padding:1.6rem 0;border-bottom:var(--hair);align-items:start}
.note-link{display:contents;color:inherit;text-decoration:none}
.note:hover .note-title{color:var(--blue)}
.note-rail{display:flex;flex-direction:column;gap:.25rem}
.note-rail .d{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.06em;color:var(--ink)}
.note-rail .r{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mid)}
.note-rail .t{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--blue);margin-top:.15rem}
.note-title{display:block;font-family:var(--font-sans);font-weight:500;
  font-size:1.4rem;line-height:1.22;letter-spacing:-.015em;color:var(--ink);margin:0}
.note-main p{margin:.4rem 0 0;color:var(--body);font-size:1rem;line-height:1.5;max-width:60ch}

/* =============================================================
   Pagination
   ============================================================= */
.pagination{max-width:var(--wrap);margin:1rem auto 5rem;padding:2rem 1.5rem 0;
  border-top:var(--hair);display:flex;justify-content:space-between;align-items:baseline;gap:1rem}
.pagination-links{display:flex;gap:1.5rem}
.pagination a{text-decoration:none;color:var(--ink)}
.pagination a:hover{color:var(--blue)}

/* =============================================================
   Reading view (single post)
   ============================================================= */
.article{max-width:var(--read);margin:0 auto;padding:3.5rem 1.5rem 2rem}
.crumb{margin:0 0 2rem}
.crumb a{color:var(--mid)}
.crumb a:hover{color:var(--ink)}
.art-meta{margin:0 0 1.3rem;display:flex;gap:.6rem;align-items:center;flex-wrap:wrap}
.art-meta .sep{color:var(--rule)}
.art-tag{color:var(--blue)}
.article h1{font-family:var(--font-sans);font-weight:500;
  font-size:clamp(2rem,4.5vw,2.9rem);line-height:1.08;letter-spacing:-.035em;
  color:var(--ink);margin:0 0 1.1rem}
.deck{font-size:1.2rem;line-height:1.5;color:var(--mid);margin:0 0 1.6rem;max-width:46ch}
.byline{display:flex;align-items:center;gap:.6rem;padding-bottom:1.8rem;
  border-bottom:var(--hair);margin-bottom:2rem}
.byavatar{width:30px;height:30px;border-radius:50%;overflow:hidden;flex:none;
  display:flex;align-items:center;justify-content:center;background:var(--blue-tint)}
.byavatar img{width:100%;height:100%;object-fit:cover}
.byavatar .sphere{width:30px;height:30px}
.byline .n{font-size:.95rem;color:var(--ink)}

.post-body{font-family:var(--font-sans);font-size:1.08rem;line-height:1.75;color:var(--body)}
.post-body p{margin:0 0 1.3em}
.post-body>p:first-of-type::first-letter{
  font-family:var(--font-serif);font-weight:500;font-size:3.5em;line-height:.72;
  float:left;padding:.04em .12em 0 0;color:var(--ink)}
.post-body a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.post-body em{font-family:var(--font-serif);font-style:italic}
.post-body strong{font-weight:600;color:var(--ink)}
.post-body h2{font-family:var(--font-sans);font-weight:600;font-size:1.5rem;line-height:1.25;
  margin:2.4em 0 .7em;color:var(--ink);letter-spacing:-.01em}
.post-body h3{font-family:var(--font-sans);font-weight:500;font-size:1.125rem;
  text-transform:uppercase;letter-spacing:.08em;margin:2em 0 .5em;color:var(--ink)}
.post-body blockquote{margin:1.75em 0;padding:0 0 0 1.5rem;border-left:2px solid var(--blue);
  font-family:var(--font-serif);font-style:italic;font-size:1.25rem;line-height:1.5;color:var(--ink)}
.post-body ul,.post-body ol{margin:0 0 1.3em;padding-left:1.25em}
.post-body li{margin:0 0 .4em}
.post-body hr{border:0;border-top:var(--hair);width:120px;margin:3rem auto}
.post-body code{font-family:var(--font-mono);font-size:.92em;background:var(--rule);padding:.1em .35em;border-radius:var(--radius)}
.post-body pre{font-family:var(--font-mono);background:#F3F4F6;border:var(--hair);border-radius:var(--radius);
  padding:1rem 1.25rem;overflow-x:auto;font-size:.9rem;line-height:1.55;margin:1.5em 0}
.post-body pre code{background:transparent;padding:0}
.post-body img{border-radius:var(--radius);margin:2em auto}
.post-body figure{margin:2em 0}
.post-body figcaption{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--mid);text-align:center;margin-top:.75rem}
.post-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:.95rem}
.post-body th{font-family:var(--font-mono);font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;
  text-align:left;padding:.6rem .5rem;border-bottom:2px solid var(--ink);color:var(--ink)}
.post-body td{padding:.55rem .5rem;border-bottom:var(--hair)}

.signoff{font-family:var(--font-serif);font-style:italic;color:var(--mid);margin:2.5rem 0 0}
/* Running sign-off: the last paragraph of every post ("Always expect friction.") */
.post-body > p:last-of-type{font-family:var(--font-serif);font-style:italic;color:var(--mid);margin-top:2.4rem}

/* Related */
.related-posts{max-width:var(--read);margin:0 auto;padding:0 1.5rem 3rem}
.related-label{margin:0 0 1rem}
.related-list{list-style:none;padding:0;margin:0}
.related-item{border-top:var(--hair)}
.related-item:last-child{border-bottom:var(--hair)}
.related-link{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;
  padding:1rem 0;text-decoration:none;color:var(--ink)}
.related-link:hover .related-title{color:var(--blue)}
.related-title{font-family:var(--font-sans);font-size:1.0625rem;line-height:1.3;font-weight:500}
.related-date{white-space:nowrap}

/* =============================================================
   End-of-post subscribe band
   ============================================================= */
.cta{border-top:var(--hair);border-bottom:var(--hair);background:#fff}
.cta-in{max-width:var(--read);margin:0 auto;padding:2.6rem 1.5rem;text-align:left}
.cta-in .label{margin:0 0 .6rem}
.cta-in h3{font-family:var(--font-sans);font-weight:500;font-size:1.5rem;
  letter-spacing:-.02em;color:var(--ink);margin:0 0 .5rem}
.cta-in p{color:var(--mid);margin:0 0 1.2rem;font-size:1rem}
.cta-in .sub-form{max-width:420px}

/* =============================================================
   Static page + error
   ============================================================= */
.page{max-width:var(--read);margin:0 auto;padding:3.5rem 1.5rem 4rem}
.page-title{font-family:var(--font-sans);font-weight:600;font-size:clamp(2rem,4vw,2.75rem);
  line-height:1.15;letter-spacing:-.025em;margin:0 0 1rem;color:var(--ink)}
.page-deck{font-family:var(--font-sans);color:var(--mid);font-size:1.125rem;line-height:1.5;margin:0 0 1.5rem}
.page-body{font-size:1.0625rem;line-height:1.7}
.page-body p{margin:0 0 1.25em}
.page-body a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.error{max-width:var(--read);margin:0 auto;padding:6rem 1.5rem;text-align:left}
.error-code{margin:0 0 1rem}
.error-title{font-family:var(--font-sans);font-weight:600;font-size:clamp(2rem,4vw,2.75rem);
  letter-spacing:-.025em;margin:0 0 .5rem;color:var(--ink)}
.error-meta{color:var(--mid);margin:0 0 2rem}
.error-home{color:var(--blue)}

/* =============================================================
   Footer
   ============================================================= */
.ftr{max-width:var(--wrap);margin:0 auto;padding:2.5rem 1.5rem 4rem;
  display:flex;justify-content:space-between;align-items:center;gap:1rem;
  flex-wrap:wrap;border-top:var(--hair)}
.ftr .brand-name{font-size:.95rem}
.ftr .label{margin:0}
.ftr .signoff{margin:0}

/* =============================================================
   Koenig editor cards
   ============================================================= */
.kg-width-wide{max-width:var(--wrap);width:100%;margin-left:50%;transform:translateX(-50%);position:relative}
.kg-width-full{max-width:100vw;width:100vw;margin-left:50%;transform:translateX(-50%);position:relative;border-radius:0}
.post-body .kg-card{margin:2.5em 0}
.kg-bookmark-card{border:var(--hair);border-radius:var(--radius);overflow:hidden;margin:2em 0;background:#fff}
.kg-bookmark-container{display:flex;color:var(--ink);text-decoration:none}
.kg-bookmark-content{padding:1.25rem;flex:1}
.kg-bookmark-title{font-family:var(--font-sans);font-weight:500;color:var(--ink)}
.kg-bookmark-description{font-size:.9rem;color:var(--body);margin-top:.3rem}
.kg-bookmark-metadata{font-family:var(--font-mono);font-size:.72rem;text-transform:uppercase;
  letter-spacing:.08em;color:var(--mid);margin-top:.8rem}
.kg-gallery-container{margin:2em 0}
.kg-gallery-row{display:flex;gap:.5rem;margin-bottom:.5rem}
.kg-gallery-row:last-child{margin-bottom:0}
.kg-gallery-image img{border-radius:var(--radius)}
.kg-embed-card{display:flex;justify-content:center;margin:2em 0}

/* Ghost members portal */
.gh-portal-popup,.gh-portal-popup-wrapper{font-family:var(--font-sans)!important}

/* =============================================================
   Responsive
   ============================================================= */
@media(max-width:760px){
  .hero-grid{grid-template-columns:1fr;gap:2rem}
  .note{grid-template-columns:1fr;gap:.5rem}
  .note-rail{flex-direction:row;gap:.8rem;align-items:baseline;flex-wrap:wrap}
  .note-rail .t{margin-top:0}
  .hdr-nav .nav{display:none}
}