.lb-overlay{position:fixed;inset:0;background:rgba(0,0,0,.9);display:none;align-items:center;justify-content:center;z-index:9999}
.lb-overlay.open{display:flex}
.lb-img{max-width:96vw;max-height:92vh;box-shadow:0 10px 40px rgba(0,0,0,.6)}
.lb-close{position:fixed;top:14px;right:16px;font:600 16px/1 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:#fff;background:rgba(255,255,255,.15);border:0;border-radius:6px;padding:10px 12px;cursor:pointer}
.lb-nav{position:fixed;top:50%;transform:translateY(-50%);display:flex;gap:6px}
.lb-prev,.lb-next{font:600 16px/1 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:#fff;background:rgba(255,255,255,.15);border:0;border-radius:6px;padding:10px 12px;cursor:pointer}
.lb-prev{left:16px;position:fixed}
.lb-next{right:16px;position:fixed}