:root{
  --bg:#ffffff;
  --ink:#000000;
  --muted:#6b6b6b;
  --hair:#eaeaea;
  --max:1200px;
}

*{box-sizing:border-box;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial;
  -webkit-font-smoothing:antialiased;
  cursor: crosshair;
}

a{text-decoration:none;color:inherit;}
a:hover{opacity:.8;}


.header{
  position:fixed;
  top:0; left:0; right:0;
  background:#fff;
  z-index:50;
}

.nav{
  max-width:var(--max);
  margin:0 auto;
  padding:26px 20px 20px;
  display:flex;
  align-items:baseline;
  gap:24px;
}

.brand{
  margin-right:auto;
  display:flex;
  gap:10px;
  align-items:baseline;
}

.brand-name{
  font-weight:700;
  color:#000;
  font-size:16px;
}

.sub{
  font-weight:400;
  color:var(--muted);
  font-size:13px;
}

.nav a{
  font-size:14px;
  color:var(--muted);
}

.nav a.active{
  color:#000;
}

main{
  max-width:var(--max);
  margin:0 auto;
  padding:110px 24px 80px;
}

/* HOME */
.hero-banner{
  width:100%;
  overflow:hidden;
}
.hero-banner img{
  width:100%;
  max-height:65vh;
  object-fit:cover;
  object-position:center;
  transition:transform .6s ease, opacity .4s ease;
  display:block;
}
.hero-banner a:hover img{
  opacity:.9;
  transform:scale(1.02);
}

/* GRIDS */
.grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
}
.thumb{
  aspect-ratio:3/4;
  overflow:hidden;
  cursor:pointer;
}
.thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}

.caption{
  margin-top:10px;
  font-size:12px;
  color:var(--muted);
  letter-spacing:.02em;
}

/* VIEWER */
.viewer-stage img{
  width:100%;
  max-height:78vh;
  object-fit:contain;
  display:block;
}
.meta{
  position: relative;
}

.viewer-title{
  position:absolute;
  left:50%;
  transform:translateX(-50%);
  font-size:12px;
  color:var(--muted);
  letter-spacing:.02em;
  text-align:center;
  pointer-events:none; /* prevents blocking button clicks */
}
.counter{
  font-size:12px;
  color:var(--muted);
  letter-spacing:.02em;
}
.controls{
  display:flex;
  gap:8px;
}
.btn{
  border:1px solid var(--hair);
  background:none;
  padding:6px 10px;
  border-radius:999px;
  font-size:12px;
  color:var(--muted);
  cursor:pointer;
}
.btn:hover{color:#000;opacity:1;}

/* FOOTER */
.footer{
  border-top:1px solid var(--hair);
  margin-top:80px;
  padding:18px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:11px;
  letter-spacing:.02em;
  color:var(--muted);
  gap:14px;
}
.footer a{ color:var(--muted); }
.footer a:hover{ color:#000; opacity:1; }

@media(max-width:900px){
  .grid{grid-template-columns:repeat(3,1fr);}
}
@media(max-width:640px){
  main{padding:100px 20px 70px;}
  .grid{grid-template-columns:repeat(2,1fr); gap:18px;}
  .footer{
    flex-direction:column;
    align-items:flex-start;
  }
}