/* Case Analytica — shared design system */

:root{
  --ink:#1b2430;
  --ink-soft:#4b5563;
  --paper:#eef1ef;
  --paper-raised:#ffffff;
  --line:#ccd2d0;
  --accent:#a8712f;
  --accent-soft:#f1e4d2;
  --pillar:#3c6e71;
  --pillar-soft:#e2edec;
  --focus:#2f6fed;
  --nav-h:64px;
}
@media (prefers-color-scheme: dark){
  :root{
    --ink:#eef1ef; --ink-soft:#aab2b8; --paper:#14181d; --paper-raised:#1c2128;
    --line:#2c343b; --accent:#d8ad6c; --accent-soft:#3a2e1c; --pillar:#7cb3b6; --pillar-soft:#1c2c2c;
  }
}
:root[data-theme="dark"]{
  --ink:#eef1ef; --ink-soft:#aab2b8; --paper:#14181d; --paper-raised:#1c2128;
  --line:#2c343b; --accent:#d8ad6c; --accent-soft:#3a2e1c; --pillar:#7cb3b6; --pillar-soft:#1c2c2c;
}
:root[data-theme="light"]{
  --ink:#1b2430; --ink-soft:#4b5563; --paper:#eef1ef; --paper-raised:#ffffff;
  --line:#ccd2d0; --accent:#a8712f; --accent-soft:#f1e4d2; --pillar:#3c6e71; --pillar-soft:#e2edec;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0; background:var(--paper); color:var(--ink);
  font-family:-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;
  line-height:1.6;
}
a{color:var(--pillar); text-decoration:none;}
a:hover{text-decoration:underline;}
a:focus-visible, button:focus-visible{outline:2px solid var(--focus); outline-offset:2px;}
img{max-width:100%; display:block;}
::selection{background:var(--accent-soft);}

.serif{font-family:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;}

.eyebrow{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12px; letter-spacing:.12em; text-transform:uppercase; color:var(--pillar); margin:0 0 8px;
}

/* Nav */
header.site-nav{
  position:sticky; top:0; z-index:20; background:color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter:blur(10px); border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:1080px; margin:0 auto; height:var(--nav-h); padding:0 24px;
  display:flex; align-items:center; justify-content:space-between; gap:20px;
}
.wordmark{font-family:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif; font-size:20px; font-weight:600; color:var(--ink);}
.wordmark span{color:var(--accent);}
nav.links{display:flex; align-items:center; gap:22px;}
nav.links a{color:var(--ink); font-size:14.5px;}
nav.links a.current{color:var(--pillar); font-weight:600;}
.btn{
  display:inline-block; font-size:14px; font-weight:600; padding:9px 16px; border-radius:5px;
  background:var(--accent); color:#fff !important; text-decoration:none !important; white-space:nowrap;
}
.btn:hover{filter:brightness(1.08);}
.btn-outline{
  background:transparent; color:var(--ink) !important; border:1px solid var(--line);
}
@media (max-width:640px){ nav.links{display:none;} }

/* Layout helpers */
.wrap{max-width:1080px; margin:0 auto; padding:0 24px;}
.narrow{max-width:720px; margin:0 auto; padding:0 24px;}
section{padding:64px 0;}
.section-head{margin-bottom:32px;}
.section-head h2{font-size:28px; margin:0 0 6px; text-wrap:balance;}
.section-head p{color:var(--ink-soft); margin:0; max-width:60ch;}

/* Hero */
.hero{padding:88px 0 64px; border-bottom:1px solid var(--line);}
.hero h1{font-size:clamp(32px,5vw,48px); margin:0 0 16px; text-wrap:balance; line-height:1.15;}
.hero p.lede{font-size:18px; color:var(--ink-soft); max-width:56ch; margin:0 0 28px;}
.hero .cta-row{display:flex; gap:12px; flex-wrap:wrap;}

/* Pillar cards */
.pillar-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:16px;}
@media (max-width:860px){ .pillar-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:520px){ .pillar-grid{grid-template-columns:1fr;} }
.pillar-card{
  background:var(--paper-raised); border:1px solid var(--line); border-radius:8px; padding:20px;
}
.pillar-card .tag{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size:10.5px; letter-spacing:.08em;
  text-transform:uppercase; color:var(--pillar); background:var(--pillar-soft); display:inline-block;
  padding:3px 8px; border-radius:3px; margin-bottom:10px;
}
.pillar-card h3{font-size:16.5px; margin:0 0 6px;}
.pillar-card p{font-size:14px; color:var(--ink-soft); margin:0;}

/* Cards grid (videos/articles) */
.card-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:20px;}
@media (max-width:860px){ .card-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:600px){ .card-grid{grid-template-columns:1fr;} }

.card{
  background:var(--paper-raised); border:1px solid var(--line); border-radius:8px; overflow:hidden;
  display:flex; flex-direction:column;
}
.card .thumb{
  aspect-ratio:16/9; background:var(--pillar-soft) center/cover no-repeat; position:relative;
  display:flex; align-items:center; justify-content:center;
}
.card .thumb.placeholder{color:var(--ink-soft); font-size:13px; font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;}
.card .thumb .fmt-badge{
  position:absolute; bottom:8px; left:8px; background:rgba(0,0,0,.65); color:#fff; font-size:10.5px;
  padding:2px 7px; border-radius:3px; font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.card .body{padding:16px; display:flex; flex-direction:column; gap:8px; flex:1;}
.card .cat{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size:10.5px; letter-spacing:.06em;
  text-transform:uppercase; color:var(--pillar);
}
.card h3{font-size:16px; margin:0; text-wrap:balance;}
.card p{font-size:13.5px; color:var(--ink-soft); margin:0; flex:1;}
.card .meta{font-size:12.5px; color:var(--ink-soft); font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;}

/* Filter chips */
.chips{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:28px;}
.chip{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size:12px; letter-spacing:.04em;
  padding:6px 12px; border-radius:20px; border:1px solid var(--line); background:var(--paper-raised);
  color:var(--ink); cursor:pointer;
}
.chip.active{background:var(--ink); color:var(--paper); border-color:var(--ink);}

/* Article body typography */
.article-header{padding:56px 0 32px; border-bottom:1px solid var(--line);}
.article-header h1{font-size:clamp(28px,4vw,38px); margin:12px 0 14px; text-wrap:balance;}
.article-meta{display:flex; gap:14px; align-items:center; flex-wrap:wrap; font-size:13.5px; color:var(--ink-soft);}
.article-body{padding:40px 0; font-size:17px;}
.article-body h2{font-size:22px; margin:36px 0 12px;}
.article-body p{margin:0 0 18px;}
.article-body ul, .article-body ol{margin:0 0 18px; padding-left:22px;}
.article-body li{margin-bottom:6px;}

.callout{
  border-left:3px solid var(--accent); background:var(--accent-soft); padding:16px 20px;
  border-radius:0 6px 6px 0; margin:28px 0; font-size:14.5px;
}
.callout .k{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size:11px; letter-spacing:.08em;
  text-transform:uppercase; color:var(--accent); font-weight:600; margin:0 0 6px;
}
.callout p{margin:0;}

/* Intake CTA banner — deliberately fixed dark-on-light-text treatment in both themes, not tied to the flipping ink/paper tokens */
.intake-band{
  background:#1b2430; color:#f2f1ec; border-radius:10px; padding:36px 32px;
  display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap;
}
.intake-band h3{margin:0 0 6px; font-size:20px; color:#f2f1ec;}
.intake-band p{margin:0; color:#c9cdd2; max-width:48ch;}
.intake-band a.btn{background:var(--accent);}

footer.site-footer{border-top:1px solid var(--line); padding:40px 0; margin-top:40px;}
footer.site-footer .foot-grid{display:flex; justify-content:space-between; align-items:flex-start; gap:24px; flex-wrap:wrap;}
footer.site-footer p{font-size:13px; color:var(--ink-soft); max-width:60ch; margin:0 0 8px;}
footer.site-footer .foot-right{display:flex; flex-direction:column; align-items:flex-end; gap:14px;}
footer.site-footer nav{display:flex; gap:16px; flex-wrap:wrap;}
.donate-btn{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size:12.5px; font-weight:600;
  letter-spacing:.04em; padding:8px 16px; border-radius:20px; border:1px solid var(--accent);
  color:var(--accent) !important; text-decoration:none !important; white-space:nowrap;
}
.donate-btn:hover{background:var(--accent-soft);}
footer.site-footer nav a{font-size:13.5px; color:var(--ink-soft);}

.overflow-x{overflow-x:auto;}