/* CMI Theme Builder — single stylesheet for homepage, hub, category, article
   Edit tokens or components here → changes apply site-wide after deploy.
   Version: 2026-07-10
*/
:root{
  --paper:#ffffff;
  --paper-2:#f7f7f5;
  --paper-3:#f0f0ed;
  --ink:#111111;
  --ink-2:#333333;
  --muted:#666666;
  --faint:#888888;
  --line:#dddddd;
  --line-strong:#111111;
  --red:#c70000;
  --red-hover:#a00000;
  --sidebar-w:280px;
  --header-h:64px;
  --max:1280px;
  --content-max:720px;
  --font-serif:"Source Serif 4",Georgia,"Times New Roman",serif;
  --font-sans:"Libre Franklin",system-ui,-apple-system,sans-serif;
  --radius:2px;
  --ease:cubic-bezier(.25,.1,.25,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;padding:0;background:var(--paper);color:var(--ink);
  font-family:var(--font-sans);font-size:16px;line-height:1.5;
  -webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block;height:auto}
a{color:var(--red);text-decoration:none}
a:hover{color:var(--red-hover);text-decoration:underline}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none;margin:0;padding:0}

/* ── Shell ── */
.cmi-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.cmi-header-inner{
  max-width:var(--max);margin:0 auto;padding:0 1rem;
  min-height:var(--header-h);
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
}
@media(min-width:900px){.cmi-header-inner{padding:0 1.5rem}}
.cmi-brand{display:flex;align-items:center;gap:.65rem;color:var(--ink)!important;text-decoration:none!important;min-width:0}
.cmi-brand:hover{color:var(--ink)!important}
.cmi-mark{
  flex-shrink:0;width:40px;height:40px;background:var(--red);color:#fff;
  display:grid;place-items:center;font-family:var(--font-serif);font-weight:700;font-size:.9rem;
}
.cmi-brand strong{display:block;font-family:var(--font-serif);font-size:clamp(.88rem,2vw,1.05rem);font-weight:700;line-height:1.15;letter-spacing:-.01em}
.cmi-brand span{display:block;font-size:.65rem;font-weight:500;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.cmi-header-nav{display:none;align-items:center;gap:.15rem}
@media(min-width:900px){.cmi-header-nav{display:flex}}
.cmi-header-nav a{
  padding:.4rem .7rem;font-size:.875rem;font-weight:500;color:var(--ink-2);text-decoration:none;
}
.cmi-header-nav a:hover{color:var(--red)}
.cmi-header-actions{display:flex;align-items:center;gap:.5rem}
.cmi-btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:.5rem .9rem;font-size:.8125rem;font-weight:600;
  border:1px solid var(--ink);border-radius:var(--radius);text-decoration:none!important;
  white-space:nowrap;transition:background .15s,color .15s,border-color .15s;
}
.cmi-btn:hover{text-decoration:none!important}
.cmi-btn-primary{background:var(--red);border-color:var(--red);color:#fff!important}
.cmi-btn-primary:hover{background:var(--red-hover);border-color:var(--red-hover);color:#fff!important}
.cmi-btn-ghost{background:transparent;color:var(--ink)!important}
.cmi-btn-ghost:hover{border-color:var(--red);color:var(--red)!important}
.cmi-nav-toggle{
  width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius);
}
@media(min-width:960px){.cmi-nav-toggle{display:none}}
.cmi-burger{width:16px;height:11px;position:relative}
.cmi-burger span{position:absolute;left:0;right:0;height:1.5px;background:var(--ink)}
.cmi-burger span:nth-child(1){top:0}
.cmi-burger span:nth-child(2){top:5px}
.cmi-burger span:nth-child(3){top:10px}

/* ── App layout: sidebar + main ── */
.cmi-app{
  max-width:var(--max);margin:0 auto;
  display:grid;grid-template-columns:1fr;
  min-height:calc(100dvh - var(--header-h));
}
@media(min-width:960px){
  .cmi-app{grid-template-columns:var(--sidebar-w) minmax(0,1fr)}
}
.cmi-sidebar{
  border-right:1px solid var(--line);background:var(--paper-2);
  display:none;flex-direction:column;
  position:sticky;top:var(--header-h);height:calc(100dvh - var(--header-h));
  overflow:hidden;
}
@media(min-width:960px){.cmi-sidebar{display:flex}}
.cmi-sidebar.is-open{
  display:flex;position:fixed;inset:var(--header-h) 0 0 0;z-index:90;
  width:min(100%,320px);height:auto;max-height:calc(100dvh - var(--header-h));
  box-shadow:8px 0 32px rgba(0,0,0,.12);
}
.cmi-sidebar-head{padding:.85rem 1rem;border-bottom:1px solid var(--line);flex-shrink:0}
.cmi-sidebar-head h2{
  margin:0 0 .55rem;font-size:.68rem;font-weight:700;text-transform:uppercase;
  letter-spacing:.1em;color:var(--red);
}
.cmi-search{
  width:100%;padding:.55rem .7rem;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--paper);font-size:.875rem;color:var(--ink);
}
.cmi-search:focus{outline:2px solid rgba(199,0,0,.25);border-color:var(--red)}
.cmi-sidebar-scroll{flex:1;overflow:auto;padding:.5rem 0 1.25rem;-webkit-overflow-scrolling:touch}
.cmi-nav-section{padding:.35rem 0}
.cmi-nav-section-title{
  padding:.45rem 1rem .25rem;font-size:.65rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.1em;color:var(--faint);
}
.cmi-nav-link{
  display:flex;align-items:center;justify-content:space-between;gap:.5rem;
  padding:.45rem 1rem;font-size:.875rem;color:var(--ink-2);text-decoration:none;
  border-left:3px solid transparent;
}
.cmi-nav-link:hover{background:rgba(0,0,0,.04);color:var(--red);text-decoration:none}
.cmi-nav-link.is-active{background:var(--paper);border-left-color:var(--red);color:var(--ink);font-weight:600}
.cmi-nav-link .count{font-size:.72rem;color:var(--faint);font-variant-numeric:tabular-nums}
.cmi-nav-link.is-active .count{color:var(--muted)}
.cmi-nav-sub{padding-left:.25rem}
.cmi-nav-sub .cmi-nav-link{font-size:.8125rem;padding:.35rem 1rem .35rem 1.35rem}
.cmi-sidebar-foot{
  flex-shrink:0;padding:.75rem 1rem;border-top:1px solid var(--line);
  font-size:.75rem;color:var(--muted);
}
.cmi-sidebar-foot a{color:var(--ink-2)}
.cmi-backdrop{
  display:none;position:fixed;inset:var(--header-h) 0 0 0;z-index:80;
  background:rgba(0,0,0,.35);
}
.cmi-backdrop.is-open{display:block}
@media(min-width:960px){.cmi-backdrop{display:none!important}}

.cmi-main{min-width:0;padding:1.25rem 1rem 3rem;background:var(--paper)}
@media(min-width:960px){.cmi-main{padding:1.5rem 1.75rem 3.5rem}}

/* ── Typography blocks ── */
.cmi-kicker{
  font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;
  color:var(--red);margin:0 0 .35rem;
}
.cmi-title{
  font-family:var(--font-serif);font-weight:700;letter-spacing:-.02em;line-height:1.15;
  margin:0 0 .75rem;font-size:clamp(1.5rem,3vw,2.1rem);color:var(--ink);
}
.cmi-lead{margin:0 0 1.25rem;color:var(--ink-2);font-size:.95rem;max-width:60ch;line-height:1.55}
.cmi-crumbs{font-size:.8rem;color:var(--muted);margin:0 0 1rem}
.cmi-crumbs a{color:var(--muted)}
.cmi-crumbs a:hover{color:var(--red)}

/* ── Cards / lists ── */
.cmi-grid{
  display:grid;gap:.75rem;
  grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr));
}
.cmi-card{
  display:flex;flex-direction:column;border:1px solid var(--line);background:var(--paper);
  border-radius:var(--radius);overflow:hidden;text-decoration:none!important;color:inherit;
  transition:border-color .15s,box-shadow .15s;
}
.cmi-card:hover{border-color:var(--ink);box-shadow:0 2px 0 var(--ink);text-decoration:none!important;color:inherit}
.cmi-card-media{
  aspect-ratio:16/9;background:var(--paper-3);object-fit:cover;width:100%;
}
.cmi-card-body{padding:.85rem .95rem;flex:1;display:flex;flex-direction:column}
.cmi-card-body b{display:block;font-size:.95rem;font-weight:600;line-height:1.3;margin-bottom:.35rem;color:var(--ink)}
.cmi-card-body span{font-size:.8rem;color:var(--muted);line-height:1.35}
.cmi-card-meta{margin-top:auto;padding-top:.65rem;font-size:.72rem;color:var(--faint)}

.cmi-list{border:1px solid var(--line);background:var(--paper)}
.cmi-list-item{
  display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;
  padding:.75rem 1rem;border-bottom:1px solid var(--line);text-decoration:none!important;color:inherit;
}
.cmi-list-item:last-child{border-bottom:0}
.cmi-list-item:hover{background:var(--paper-2);color:inherit;text-decoration:none!important}
.cmi-list-item b{display:block;font-size:.9rem;font-weight:600;color:var(--ink);line-height:1.3}
.cmi-list-item span{display:block;font-size:.78rem;color:var(--muted);margin-top:.2rem}
.cmi-list-item .cmi-count{font-size:.72rem;font-weight:600;color:var(--red);white-space:nowrap}

/* ── Article ── */
.cmi-article-wrap{max-width:var(--content-max)}
.cmi-article-wrap h1.cmi-title{font-size:clamp(1.65rem,3vw,2.25rem);margin-bottom:.65rem}
.cmi-meta{
  display:flex;flex-wrap:wrap;gap:.45rem .85rem;align-items:center;
  font-size:.85rem;color:var(--muted);margin-bottom:1rem;
}
.cmi-tags{display:flex;flex-wrap:wrap;gap:.4rem;margin:0 0 1.15rem}
.cmi-tag{
  display:inline-block;border:1px solid var(--line);border-radius:999px;
  padding:.15rem .65rem;font-size:.75rem;color:var(--ink-2);background:var(--paper-2);
  text-decoration:none;
}
.cmi-tag:hover{border-color:var(--red);color:var(--red);text-decoration:none}
.cmi-hero{
  width:100%;aspect-ratio:1200/630;object-fit:cover;display:block;
  border:1px solid var(--line);margin:0 0 .5rem;background:var(--paper-2);
}
.cmi-hero-cap{font-size:.75rem;color:var(--muted);margin:0 0 1.25rem}
.cmi-prose{
  font-family:var(--font-serif);font-size:1.05rem;color:var(--ink-2);line-height:1.7;
}
.cmi-prose p{margin:0 0 1rem}
.cmi-prose h2{font-family:var(--font-sans);font-size:1.2rem;margin:1.75rem 0 .75rem;color:var(--ink)}
.cmi-article-footer{
  border-top:1px solid var(--line);margin-top:2.25rem;padding-top:1rem;
  font-size:.85rem;color:var(--muted);
}

/* ── Footer ── */
.cmi-footer{
  border-top:3px solid var(--ink);background:var(--paper);
  padding:1.5rem 1rem;margin-top:auto;
}
.cmi-footer-inner{
  max-width:var(--max);margin:0 auto;
  display:flex;flex-wrap:wrap;gap:.75rem 1.5rem;justify-content:space-between;
  font-size:.8rem;color:var(--muted);
}
.cmi-footer a{color:var(--ink-2)}

/* ── Homepage extras (directory) ── */
.cmi-home-hero{
  border-top:3px solid var(--line-strong);border-bottom:1px solid var(--line);
  padding:1.5rem 0 1.75rem;margin-bottom:1.5rem;
}
.cmi-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem;margin-top:1rem}
.cmi-stat{border-top:2px solid var(--ink);padding-top:.45rem}
.cmi-stat b{display:block;font-family:var(--font-serif);font-size:1.2rem}
.cmi-stat span{font-size:.72rem;color:var(--muted)}
.cmi-section{margin:2rem 0}
.cmi-section-head{
  display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:.75rem;
  margin-bottom:1rem;padding-bottom:.65rem;border-bottom:2px solid var(--ink);
}
.cmi-section-head h2{margin:0;font-family:var(--font-serif);font-size:1.35rem;font-weight:700}
.cmi-az{
  display:flex;flex-wrap:wrap;gap:.25rem;margin:1rem 0;
}
.cmi-az a{
  min-width:1.85rem;height:1.85rem;display:grid;place-items:center;
  border:1px solid var(--line);font-size:.75rem;font-weight:600;color:var(--ink-2);
  text-decoration:none;
}
.cmi-az a:hover{background:var(--ink);color:#fff;border-color:var(--ink);text-decoration:none}
.cmi-az a.is-empty{opacity:.3;pointer-events:none}

/* ── Utility ── */
.cmi-muted{color:var(--muted)}
.cmi-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.cmi-loading{padding:2rem;color:var(--muted);font-size:.9rem}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}


/* ── Legacy article classes (pre-theme-builder) ──
   Old migrate pages used .topbar/.wrap/.article. Map them so one CSS still controls them. */
.topbar{border-bottom:1px solid var(--line);background:var(--paper)}
.topbar-inner{max-width:var(--max);margin:0 auto;padding:.75rem 1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{font-weight:700;color:var(--ink);text-decoration:none}
.brand span{display:block;font-weight:500;font-size:.72rem;color:var(--muted)}
.nav a{margin-left:1rem;font-size:.9rem;color:var(--ink-2);text-decoration:none}
.wrap{max-width:var(--content-max);margin:0 auto;padding:1.5rem 1.25rem 3rem}
.crumbs{font-size:.82rem;color:var(--muted);margin-bottom:1.25rem}
.crumbs a{color:var(--muted)}
.meta{font-size:.85rem;color:var(--muted);margin-bottom:1rem;display:flex;flex-wrap:wrap;gap:.5rem .85rem}
.tag{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:.15rem .65rem;font-size:.75rem;color:var(--ink-2);background:var(--paper-2);text-decoration:none}
.hero-img,.cmi-hero{width:100%;aspect-ratio:1200/630;object-fit:cover;display:block;border:1px solid var(--line);margin:0 0 .5rem;background:var(--paper-2)}
.hero-cap,.cmi-hero-cap{font-size:.75rem;color:var(--muted);margin:0 0 1.25rem}
.article,.cmi-prose{font-family:var(--font-serif);font-size:1.05rem;color:var(--ink-2);line-height:1.7}
.article p,.cmi-prose p{margin:0 0 1rem}
.footer{border-top:1px solid var(--line);margin-top:2.5rem;padding-top:1rem;font-size:.85rem;color:var(--muted)}
.list{list-style:none;margin:0;padding:0}
.list li{border-bottom:1px solid var(--line);padding:.65rem 0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:.75rem}
.card{border:1px solid var(--line);padding:1rem;background:var(--paper-2);text-decoration:none;color:inherit}
.card:hover{border-color:var(--ink)}

/* Related internal links (SEO Domination on-page) */
.cmi-related{margin:2rem 0 0;padding:1.25rem 0 0;border-top:1px solid var(--line)}
.cmi-related h2{font-family:var(--font-sans);font-size:1rem;margin:0 0 .75rem;color:var(--ink)}
.cmi-related ul{list-style:none;margin:0;padding:0}
.cmi-related li{padding:.35rem 0;border-bottom:1px solid var(--line)}
.cmi-related li:last-child{border-bottom:0}
.cmi-related a{color:var(--ink-2);text-decoration:none;font-size:.9rem}
.cmi-related a:hover{color:var(--red)}

/* Key takeaways (GEO / AI Overviews answer-first) */
.cmi-takeaways{margin:1.25rem 0 1.5rem;padding:1rem 1.15rem;border:1px solid var(--line);background:var(--paper-2)}
.cmi-takeaways h2{font-family:var(--font-sans);font-size:.85rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;margin:0 0 .5rem;color:var(--ink)}
.cmi-takeaways .cmi-tldr{font-family:var(--font-serif);font-size:1rem;line-height:1.55;margin:0 0 .65rem;color:var(--ink-2)}
.cmi-takeaways ul{margin:0;padding-left:1.15rem}
.cmi-takeaways li{margin:.25rem 0;font-size:.92rem;color:var(--ink-2);line-height:1.45}