/*
  museum-style.css
  A refined, museum-like stylesheet for exhibition/gallery websites.
  Usage: <link rel="stylesheet" href="museum-style.css">
  Expected HTML structure (example):
    <header class="site-header">...<nav>...</nav></header>
    <section class="hero"><h1>Exhibition Title</h1><p>Intro</p></section>
    <main class="content"> <section class="gallery"> <article class="art-card">...</article>...</section> </main>
    <footer class="site-footer">...</footer>
*/

:root{
  --bg:#fbfaf7;            /* warm paper */
  --panel:#ffffff;         /* card background */
  --muted:#8b877f;         /* captions, metadata */
  --accent:#1f2937;        /* deep charcoal for headings */
  --accent-2:#6b4f3a;      /* warm brown accent */
  --gap:24px;
  --max-width:1200px;
  --radius:10px;
  --shadow: 0 6px 18px rgba(20,20,20,0.08);
  --serif: 'Georgia','Times New Roman',serif;
  --sans: 'Helvetica Neue',Arial,Helvetica,sans-serif;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--sans);
  background:linear-gradient(180deg,var(--bg),#f7f5f2 0%);
  color:var(--accent);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.6;
}

.container{
  width:calc(100% - 48px);
  max-width:var(--max-width);
  margin:0 auto;
  padding:48px 0;
}

/* Header */
.site-header{
  background:transparent;
  padding:20px 0;
}
.site-brand{
  display:flex;align-items:center;gap:12px;
}
.site-brand img{height:48px;width:auto;border-radius:6px;box-shadow:var(--shadow)}
.site-title{
  font-family:var(--serif);
  font-size:1.15rem;
  letter-spacing:0.06em;
  color:var(--accent);
}

/* Navigation */
.site-nav{margin-top:8px}
.site-nav ul{display:flex;gap:20px;list-style:none;padding:0;margin:0}
.site-nav a{
  text-decoration:none;color:var(--muted);font-weight:600;font-size:0.95rem;
}
.site-nav a:hover, .site-nav a:focus{color:var(--accent-2);outline:none}

/* Hero */
.hero{
  display:grid;grid-template-columns:1fr;gap:20px;
  padding:64px 0 48px 0;
}
.hero .eyebrow{font-size:0.9rem;color:var(--muted);text-transform:uppercase;letter-spacing:0.12em}
.hero h1{
  font-family:var(--serif);font-size:clamp(2rem,4vw,3.6rem);margin:6px 0;color:var(--accent);
}
.hero p.lead{max-width:70ch;color:var(--muted);font-size:1.05rem}

.hero-visual{
  margin-top:18px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
}
.hero-visual img{width:100%;height:auto;display:block}

/* Gallery grid */
.gallery{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:var(--gap);
  margin-top:32px;
}

.art-card{
  background:var(--panel);
  border-radius:12px;
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .28s cubic-bezier(.2,.9,.3,1),box-shadow .28s;
  display:flex;flex-direction:column;
}
.art-card:focus-within, .art-card:hover{transform:translateY(-6px);box-shadow:0 14px 30px rgba(20,20,20,0.12)}

.art-media{width:100%;aspect-ratio:4/3;overflow:hidden;background:#efebe6}
.art-media img{width:100%;height:100%;object-fit:cover;display:block}

.art-body{padding:18px 16px;flex:1;display:flex;flex-direction:column}
.art-title{font-family:var(--serif);font-size:1.05rem;margin:0;color:var(--accent)}
.art-meta{margin-top:8px;color:var(--muted);font-size:0.9rem}
.art-actions{margin-top:auto;display:flex;gap:10px;align-items:center}
.button{display:inline-block;padding:8px 14px;border-radius:8px;text-decoration:none;font-weight:600;box-shadow:none}
.button-outline{border:1px solid rgba(31,41,55,0.08);color:var(--accent)}
.button-primary{background:var(--accent-2);color:#fff}

/* Detail / Spotlight */
.spotlight{
  display:grid;grid-template-columns:1fr 420px;gap:36px;align-items:start;margin-top:36px
}
.spotlight .media{border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
.spotlight .info{font-size:0.98rem;color:var(--muted)}

/* Utilities */
.kicker{font-size:0.85rem;text-transform:uppercase;letter-spacing:0.12em;color:var(--muted)}
.small{font-size:0.9rem}
.center{text-align:center}

/* Footer */
.site-footer{padding:40px 0;margin-top:48px;border-top:1px solid rgba(31,41,55,0.04);color:var(--muted)}
.site-footer .meta{display:flex;flex-wrap:wrap;gap:16px}

/* Accessibility focus styles */
:focus{outline:3px solid rgba(107,79,58,0.12);outline-offset:3px}

/* Responsive tweaks */
@media (max-width:880px){
  .spotlight{grid-template-columns:1fr}
  .site-nav ul{gap:12px}
  .container{padding:32px 0}
}

@media (max-width:480px){
  .hero{padding:28px 0}
  .site-brand img{height:40px}
  .art-title{font-size:1rem}
}

/* Print-friendly */
@media print{
  body{background:white;color:black}
  .site-nav,.site-footer,.button{display:none}
  .art-card{box-shadow:none;border-radius:0}
}

/* End of museum-style.css */