:root{
  --ink:#0c0c0b;
  --paper:#eee7dc;
  --paper-deep:#d7cbbb;
  --bone:#f8f4ec;
  --bronze:#a87b39;
  --bronze-light:#d9b978;
  --muted:#6e675f;
  --line:rgba(12,12,11,.16);
  --max:1280px;
  --serif: Georgia, "Times New Roman", serif;
  --sans: Arial, Helvetica, sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--serif);
  line-height:1.65;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{width:min(calc(100% - 42px),var(--max));margin:auto}
.narrow{max-width:860px}
.prose{max-width:820px}
.center{text-align:center}
.skip-link{position:absolute;left:-9999px}
.skip-link:focus{left:18px;top:18px;z-index:99;background:#fff;padding:10px 14px}

.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(12,12,11,.93);
  backdrop-filter:blur(18px);
  color:#fff;
  border-bottom:1px solid rgba(255,255,255,.12)
}
.header-inner{
  width:min(calc(100% - 42px),var(--max));margin:auto;
  min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:20px
}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.brand-mark{
  width:42px;height:42px;border:1px solid var(--bronze-light);
  border-radius:50%;display:grid;place-items:center;
  font-size:22px;color:var(--bronze-light)
}
.brand strong{display:block;font-size:17px;letter-spacing:.02em}
.brand small{display:block;font:10px var(--sans);letter-spacing:.22em;text-transform:uppercase;color:#bbb}
.site-nav{display:flex;gap:18px;align-items:center}
.site-nav a{
  text-decoration:none;font:10px var(--sans);
  text-transform:uppercase;letter-spacing:.18em;
  color:#d8d8d8;padding:31px 0 27px;border-bottom:1px solid transparent
}
.site-nav a:hover,.site-nav a.active{color:#fff;border-color:var(--bronze-light)}
.nav-toggle{display:none;background:none;border:1px solid #777;color:#fff;padding:8px 12px}

.definition-strip{
  background:#171613;color:#eee;border-bottom:1px solid rgba(255,255,255,.08)
}
.definition-strip .wrap{
  display:flex;gap:18px;align-items:center;padding:13px 0;
  font-size:14px
}
.definition-label{
  font:10px var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--bronze-light)
}

.hero{
  position:relative;min-height:88vh;display:grid;align-items:end;
  background:
    linear-gradient(90deg,rgba(5,5,5,.92) 0%,rgba(5,5,5,.78) 37%,rgba(5,5,5,.18) 72%,rgba(5,5,5,.32) 100%),
    url("assets/unicorn-comparison-hero.jpg") center/cover no-repeat;
  color:#fff;
}
.hero::after{
  content:"";position:absolute;inset:auto 0 0;height:180px;
  background:linear-gradient(transparent,var(--paper))
}
.hero-grid{
  position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .75fr;
  gap:70px;align-items:end;padding:110px 0 160px
}
.eyebrow,.museum-kicker,.source,.evidence-type,.definition-term{
  font:11px var(--sans);font-weight:700;text-transform:uppercase;
  letter-spacing:.22em;color:var(--bronze-light)
}
.hero h1{
  font-size:clamp(76px,11vw,156px);line-height:.83;letter-spacing:-.065em;
  margin:0 0 28px
}
.hero-definition{font-size:24px;line-height:1.35;max-width:820px}
.lede{font-size:22px;color:#ddd;max-width:760px}
.button-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.button{
  display:inline-block;text-decoration:none;padding:14px 20px;
  border:1px solid currentColor;font:11px var(--sans);
  text-transform:uppercase;letter-spacing:.14em;transition:.25s ease
}
.button.primary{background:#fff;color:#111;border-color:#fff}
.button.secondary{background:rgba(0,0,0,.18);color:#fff}
.button:hover{transform:translateY(-2px)}
.museum-card{
  background:rgba(18,18,17,.78);backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.25);padding:34px
}
.museum-card h2{font-size:34px;line-height:1.1}
.museum-card dl{margin:28px 0 10px}
.museum-card dl div{display:grid;grid-template-columns:120px 1fr;padding:12px 0;border-top:1px solid rgba(255,255,255,.16)}
.museum-card dt{font:10px var(--sans);letter-spacing:.16em;text-transform:uppercase;color:#aaa}
.museum-card dd{margin:0;font-weight:bold}
.fine-print{font:12px var(--sans);color:var(--muted)}
.hero .fine-print{color:#bbb}

.section{padding:110px 0}
.section h2{font-size:clamp(38px,5vw,72px);line-height:1.02;letter-spacing:-.045em}
.display-question{font-size:34px;line-height:1.35}
.dark-section{background:#0f0f0e;color:#fff}
.accent-section{background:var(--paper-deep)}
.section-heading{margin-bottom:45px}
.three-grid,.archive-grid,.two-grid{display:grid;gap:22px}
.three-grid{grid-template-columns:repeat(3,1fr)}
.two-grid{grid-template-columns:repeat(2,1fr)}
.panel{
  border:1px solid rgba(255,255,255,.16);padding:34px;min-height:310px;
  background:linear-gradient(180deg,rgba(255,255,255,.03),transparent)
}
.panel-number{font:11px var(--sans);color:var(--bronze-light)}
.panel h3{font-size:30px;margin-top:65px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
blockquote{
  font-size:30px;line-height:1.32;border-left:2px solid var(--bronze);
  margin:38px 0;padding-left:28px
}
.text-link{font-weight:bold;text-underline-offset:5px}
.archive-grid{grid-template-columns:repeat(3,1fr)}
.archive-tile{
  min-height:210px;background:var(--bone);border:1px solid var(--line);
  padding:28px;text-decoration:none;display:flex;flex-direction:column;justify-content:space-between;
  transition:.25s ease
}
.archive-tile:hover{transform:translateY(-4px);border-color:var(--bronze)}
.archive-tile span{font-size:31px}
.archive-tile small{font:13px var(--sans);color:var(--muted)}
.full-bleed-image{
  width:100%;height:min(72vh,820px);object-fit:cover;
  border-top:1px solid #222;border-bottom:1px solid #222
}
.image-caption{
  width:min(calc(100% - 42px),var(--max));margin:14px auto 0;
  font:11px var(--sans);letter-spacing:.08em;color:var(--muted)
}

.page-hero{
  background:#121210;color:#fff;padding:100px 0 72px;border-bottom:1px solid rgba(255,255,255,.12)
}
.page-hero h1{
  font-size:clamp(64px,10vw,130px);line-height:.84;letter-spacing:-.06em;margin-bottom:28px
}
.page-hero .lede{color:#bbb}
.prose h2{margin-top:76px;font-size:50px}
.prose p{font-size:20px}
.callout,.notice,.contact-box,.definition-card,.search-instruction{
  padding:30px;border:1px solid var(--bronze);
  background:var(--bone);margin:30px 0 42px
}
.definition-card p:last-child,.search-instruction p:last-child{font-size:22px;margin-bottom:0}
.info-card{background:var(--bone);border:1px solid var(--line);padding:32px}
.check-list{list-style:none;padding:0}
.check-list li{padding:12px 0 12px 30px;border-bottom:1px solid var(--line);position:relative}
.check-list li::before{content:"•";position:absolute;left:5px;color:var(--bronze);font-size:24px;line-height:1}
.evidence-list article,.article-list article{padding:46px 0;border-bottom:1px solid var(--line)}
.evidence-list h2,.article-list h2{font-size:46px}
.definition-list div{display:grid;grid-template-columns:240px 1fr;gap:25px;padding:20px 0;border-top:1px solid var(--line)}
.definition-list dd{margin:0}
.timeline{list-style:none;padding:0}
.timeline li{
  display:grid;grid-template-columns:150px 1fr;gap:42px;padding:38px 0;border-top:1px solid var(--line)
}
.timeline .year{font:12px var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--bronze)}
.timeline h2{font-size:42px}
.faq details{padding:26px 0;border-top:1px solid var(--line)}
.faq summary{cursor:pointer;font-size:26px;font-weight:bold}
.faq p{font-size:18px}
.site-footer{background:#0c0c0b;color:#eee;padding:70px 0 28px}
.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px}
.footer-title{font-size:28px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.16);margin-top:42px;padding-top:22px;
  display:flex;justify-content:space-between;gap:20px;
  font:10px var(--sans);letter-spacing:.14em;text-transform:uppercase;color:#999
}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
.reveal.visible{opacity:1;transform:none}

@media(max-width:980px){
  .nav-toggle{display:block}
  .site-nav{
    display:none;position:absolute;top:82px;left:0;right:0;
    background:#111;padding:20px 22px;flex-direction:column;align-items:flex-start
  }
  .site-nav.open{display:flex}
  .site-nav a{padding:8px 0}
  .hero-grid,.split,.footer-grid{grid-template-columns:1fr}
  .hero{min-height:auto}
  .hero-grid{padding:95px 0 135px}
  .museum-card{max-width:620px}
  .three-grid,.archive-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:650px){
  .wrap{width:min(calc(100% - 28px),var(--max))}
  .definition-strip .wrap{display:block}
  .definition-label{display:block;margin-bottom:5px}
  .three-grid,.archive-grid,.two-grid{grid-template-columns:1fr}
  .section{padding:78px 0}
  .hero h1{font-size:68px}
  .hero-definition,.lede{font-size:19px}
  .timeline li{grid-template-columns:1fr;gap:8px}
  .definition-list div{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}

.definition-entry{padding:24px 0 54px;border-bottom:1px solid var(--line)}
.definition-entry h2{margin-top:0}

.record-entry{padding:1.5rem 0 2rem;border-bottom:1px solid var(--line)}
.record-entry h3{margin:.25rem 0 .75rem}
.standards-list{display:grid;grid-template-columns:minmax(150px,220px) 1fr;gap:.8rem 1.5rem}
.standards-list dt{font-weight:700}
.standards-list dd{margin:0}
.related-links{margin-top:3rem;padding-top:2rem;border-top:1px solid var(--line)}
@media (max-width:700px){.standards-list{grid-template-columns:1fr}.standards-list dd{margin-bottom:1rem}}

.image-section{padding-top:0}
.museum-figure{margin:0}
.museum-figure img{display:block;width:100%;height:auto;border:1px solid rgba(255,255,255,.08)}
.museum-figure figcaption{margin-top:.8rem;font-size:.78rem;line-height:1.5;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}

/* v6.2 — three-card photo restored as the top banner */
.card-photo-banner{
  position:relative;
  overflow:hidden;
  isolation:isolate;
  min-height:clamp(430px,58vw,650px);
  display:flex;
  align-items:flex-end;
  background:
    linear-gradient(90deg,rgba(7,7,7,.94) 0%,rgba(7,7,7,.76) 42%,rgba(7,7,7,.40) 72%,rgba(7,7,7,.52) 100%),
    linear-gradient(0deg,rgba(7,7,7,.88) 0%,rgba(7,7,7,.10) 70%),
    url("assets/unicorn-card-banner.jpg") center 39% / cover no-repeat;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.card-photo-banner::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:linear-gradient(180deg,rgba(0,0,0,.08),rgba(0,0,0,.14));
}
.card-photo-banner .wrap{
  position:relative;
  z-index:1;
  padding-top:7rem;
  padding-bottom:6rem;
}
.card-photo-banner h1,
.card-photo-banner .lede{
  color:#fff;
  text-shadow:0 3px 28px rgba(0,0,0,.78);
}
.card-photo-banner .eyebrow{
  color:var(--bronze-light);
}
@media (max-width:760px){
  .card-photo-banner{
    min-height:460px;
    background-position:center top;
  }
  .card-photo-banner .wrap{
    padding-top:6rem;
    padding-bottom:4rem;
  }
}