/* isdem.org — single-page "less is more" landing site.
   Palette and mark colors come from the institute's own logo (three
   overlapping timing-distribution curves): navy, slate, grey-blue. */
:root{
  --paper:#faf8f4;
  --ink:#1c2b3a;
  --ink-soft:#33455a;
  --rule:#c9cdd1;
  --mid:#7c8c9e;
  --light:#b9bfc7;
  --body-text:#2b2b28;
}
@media (prefers-color-scheme: dark){
  :root{
    --paper:#15191d;
    --ink:#e7ebee;
    --ink-soft:#c7d0d8;
    --rule:#3a4046;
    --mid:#8c99a6;
    --light:#5b636b;
    --body-text:#d8d8d3;
  }
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--paper);
  color:var(--body-text);
  font-family:"Newsreader", Georgia, "Times New Roman", serif;
  -webkit-font-smoothing:antialiased;
  line-height:1.68;
}
.page{
  max-width:640px;
  margin:0 auto;
  padding:5.5rem 1.5rem 4rem;
}
header{
  text-align:center;
  margin-bottom:2.4rem;
}
.mark{
  width:118px;
  height:auto;
  margin:0 auto 1.6rem;
  display:block;
}
h1{
  font-size:1.65rem;
  font-weight:500;
  letter-spacing:0.09em;
  font-variant:small-caps;
  color:var(--ink);
  margin:0 0 0.5rem;
}
.tagline{
  font-style:italic;
  font-size:1.05rem;
  color:var(--ink-soft);
  margin:0;
}
.rule{
  border:none;
  border-top:1px solid var(--rule);
  margin:2.2rem 0;
}
.rule.thin{margin:2.6rem 0 2.8rem;}
.lede{
  font-size:1.14rem;
  color:var(--body-text);
  margin:0 0 1.5rem;
}
.lede:last-of-type{margin-bottom:2.8rem;}
.pillars-label{
  font-variant:small-caps;
  letter-spacing:0.09em;
  font-size:1.0rem;
  font-weight:500;
  color:var(--ink-soft);
  margin:0 0 1.3rem;
}
.pillars-sub{
  font-family:"Courier Prime", ui-monospace, "SF Mono", Menlo, monospace;
  font-size:0.68rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--mid);
  margin:-0.6rem 0 1.6rem;
}
.pillars{
  margin:0 0 2.6rem;
}
.pillar{
  padding:0 0 1.7rem;
}
.pillar:last-child{padding-bottom:0;}
.pillar-name{
  font-style:italic;
  font-size:1.12rem;
  color:var(--ink);
  display:block;
  margin:0 0 0.25rem;
}
.pillar-desc{
  font-size:1.0rem;
  color:var(--body-text);
  margin:0;
}
.pull-quote{
  border-left:2px solid var(--light);
  padding-left:1.2rem;
  margin:0 0 2.8rem;
}
.pull-quote p{
  font-style:italic;
  font-size:1.2rem;
  line-height:1.55;
  color:var(--ink);
  margin:0;
}
.position{
  font-size:1.0rem;
  color:var(--ink-soft);
  border-left:2px solid var(--light);
  padding-left:1.2rem;
  margin:0 0 2.6rem;
}
.position p{margin:0 0 0.9rem;}
.position p:last-child{margin-bottom:0;}
.research-entry{
  font-size:1.0rem;
  color:var(--body-text);
  margin:0;
}
.research-entry a{color:var(--ink-soft);}
.research-entry a:hover{color:var(--ink);}
.director-name{
  font-style:italic;
  font-size:1.12rem;
  color:var(--ink);
  margin:0 0 0.2rem;
}
.director-role{
  font-size:0.95rem;
  color:var(--ink-soft);
  margin:0 0 0.9rem;
}
.director-bio{margin-bottom:0;}
.contact-cta{
  text-align:center;
  margin:0 0 2.8rem;
}
.contact-cta .pillars-label{margin-bottom:0.6rem;}
.cta-text{
  font-size:1.0rem;
  color:var(--ink-soft);
  margin:0 0 1.3rem;
}
.cta-button{
  display:inline-block;
  font-family:"Courier Prime", ui-monospace, "SF Mono", Menlo, monospace;
  font-size:0.85rem;
  letter-spacing:0.05em;
  color:var(--ink);
  text-decoration:none;
  border:1px solid var(--ink-soft);
  border-radius:2px;
  padding:0.65rem 1.5rem;
  transition:background-color 0.15s ease, color 0.15s ease;
}
.cta-button:hover{
  background:var(--ink-soft);
  color:var(--paper);
}
footer{
  text-align:center;
  font-family:"Courier Prime", ui-monospace, "SF Mono", Menlo, monospace;
  font-size:0.72rem;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:var(--mid);
}
footer .line{margin:0.35rem 0;}
footer a{color:var(--mid); text-decoration:none; border-bottom:1px solid var(--rule);}
footer a:hover{color:var(--ink-soft);}
@media (max-width:480px){
  .page{padding:3.5rem 1.25rem 3rem;}
  h1{font-size:1.4rem; letter-spacing:0.06em;}
}
@media (min-width:820px){
  html{font-size:19px;}
  .page{max-width:680px;}
}