body{background:#f7f7f9}
.card-post{border:1px solid #eee;border-radius:14px;background:#fff}
.feed .item{padding:14px 16px;border-bottom:1px solid #f0f0f0}
.feed .item:last-child{border-bottom:0}
.avatar{width:40px;height:40px;border-radius:50%;object-fit:cover}
.post-images{display:grid;gap:6px}
.post-images.cols-1{grid-template-columns:1fr}
.post-images.cols-2{grid-template-columns:1fr 1fr}
.post-images.cols-3,.post-images.cols-4{grid-template-columns:1fr 1fr}
.post-images img{width:100%;height:100%;object-fit:cover;border-radius:10px;cursor:pointer}
.badge{font-size:.72rem}
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.9);display:none;align-items:center;justify-content:center;z-index:1050}
.lightbox img{max-width:95vw;max-height:90vh}
.lightbox .close{position:absolute;top:12px;right:16px;font-size:28px;color:#fff;cursor:pointer}
.lightbox .nav{position:absolute;top:50%;transform:translateY(-50%);font-size:40px;color:#fff;cursor:pointer;padding:0 14px;user-select:none}
.lightbox .prev{left:10px}.lightbox .next{right:10px}