.kx-thumb{background:var(--bg-soft);border-radius:8px;flex:none;width:72px;height:72px;display:block;position:relative;overflow:hidden}.kx-thumb img{object-fit:cover;width:100%;height:100%;display:block}.kx-thumb.is-sending img{opacity:.5}.kx-thumb__bar{background:var(--ink);width:40%;height:3px;animation:1.1s ease-in-out infinite kx-thumb-bar;position:absolute;bottom:0;left:0}@keyframes kx-thumb-bar{0%{transform:translate(-100%)}to{transform:translate(250%)}}@media (prefers-reduced-motion:reduce){.kx-thumb__bar{opacity:.35;width:100%;animation:none}}