:root{
  --bg:#0f1724;
  --card:#0b1220;
  --muted:#94a3b8;
  --accent:#22c55e;
  --gap:12px;
  --radius:8px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:linear-gradient(180deg,#071024 0%, #071122 60%);
  color:#e6eef8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  padding:20px;
}

.site-header{
  display:flex;
  gap:16px;
  align-items:center;
  justify-content:space-between;
  margin-bottom:18px;
}
.site-header h1{margin:0; font-size:1.25rem}
.controls{display:flex;gap:8px; align-items:center}
.controls input[type="search"]{
  padding:8px 10px;
  border-radius:8px;
  border:1px solid rgba(255,255,255,0.06);
  background:rgba(255,255,255,0.02);
  color:inherit;
  min-width:220px;
}
.controls select{
  padding:8px;
  border-radius:8px;
  background:rgba(255,255,255,0.02);
  color:inherit;
  border:1px solid rgba(255,255,255,0.06);
}

/* Gallery grid */
.gallery{
  display:grid;
  gap:var(--gap);
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}

/* Card */
.card{
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(0,0,0,0.05));
  border-radius:var(--radius);
  overflow:hidden;
  position:relative;
  cursor:zoom-in;
  transition:transform .18s ease, box-shadow .18s ease;
}
.card:hover{ transform:translateY(-6px); box-shadow:0 8px 30px rgba(2,6,23,0.6) }
.card img{
  display:block;
  width:100%;
  height:180px;
  object-fit:cover;
  background:#0a0e14;
}
.card .meta{
  padding:10px;
  font-size:0.9rem;
}
.card .title{ margin:0; color:#fff; font-weight:600 }
.card .caption{ margin:4px 0 0; color:var(--muted); font-size:0.85rem }

/* Lightbox */
.lightbox{
  position:fixed;
  inset:0;
  display:none;
  align-items:center;
  justify-content:center;
  background:rgba(1,3,9,0.8);
  z-index:1000;
}
.lightbox[aria-hidden="false"]{ display:flex }
.lb-content{ max-width:90vw; max-height:90vh; display:flex; flex-direction:column; align-items:center; gap:10px }
.lb-content img{ max-width:calc(90vw); max-height:calc(80vh); object-fit:contain; border-radius:6px; }
.lb-caption{ text-align:center; color:var(--muted) }
.lb-caption h2{ margin:0 0 6px; color:#fff }
.lb-close, .lb-nav{
  position:fixed;
  background:rgba(0,0,0,0.4);
  color:#fff;
  border:0;
  padding:10px;
  border-radius:8px;
  cursor:pointer;
  font-size:1rem;
  z-index:1001;
}
.lb-close{ top:20px; right:20px }
.lb-nav{ top:50%; transform:translateY(-50%); }
#lb-prev{ left:20px }
#lb-next{ right:20px }

/* Responsive tweaks */
@media (max-width:600px){
  .card img{ height:140px }
  .controls input{ min-width:120px }
}