:root{
  --bg:#fafafa;
  --muted:#666;
  --accent:#2b7a78;
}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial; margin:0; background:var(--bg); color:#111}
.site-header{background:#fff; border-bottom:1px solid #eee}
.site-header nav{display:flex;gap:1rem;align-items:center;padding:0.75rem 1rem}
.brand{font-weight:700;color:var(--accent);text-decoration:none;margin-right:1rem}
.container{max-width:980px;margin:2rem auto;padding:0 1rem}
.album{margin-bottom:3rem}
.album h2{margin-top:0;color:var(--accent)}
.gallery{display:flex;flex-wrap:wrap;gap:12px}
.thumb{width:200px;height:140px;overflow:hidden;background:#ddd;display:flex;align-items:center;justify-content:center}
.thumb-link{display:block;width:100%;height:100%;cursor:pointer;text-decoration:none}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform 0.2s ease-out}
.thumb:hover img{transform:scale(1.05)}
.site-footer{padding:1rem;text-align:center;color:var(--muted);border-top:1px solid #eee;margin-top:2rem}
code{background:#f4f4f4;padding:0.1rem 0.3rem;border-radius:4px}

/* CSS-only lightbox (modal using :target) */
.lightbox{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.85);z-index:999;align-items:center;justify-content:center}
.lightbox:target{display:flex}
.lightbox-content{position:relative;max-width:90%;max-height:90vh;background:#fff;border-radius:8px;overflow:auto;box-shadow:0 4px 20px rgba(0,0,0,0.3)}
.lightbox-content img{display:block;width:100%;height:auto;max-height:calc(90vh - 60px)}
.lightbox-caption{margin:12px;color:#666;text-align:center;font-size:0.9rem}
.lightbox-close{position:absolute;top:8px;right:12px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:#f0f0f0;border:none;border-radius:4px;font-size:24px;cursor:pointer;text-decoration:none;color:#333;z-index:1000}
.lightbox-close:hover{background:#e0e0e0}