.preview-phone-surface{position:relative;isolation:isolate}
.preview-phone-surface::after{content:"";position:absolute;left:50%;bottom:calc(var(--phone-base,24px) - 14px);width:min(100%,calc(var(--device-width,368px)*1.3));height:28px;transform:translateX(-50%);border-radius:50%;background:radial-gradient(ellipse,rgba(24,38,30,.65) 0%,rgba(24,38,30,.4) 32%,rgba(24,38,30,.16) 58%,transparent 78%);filter:blur(5px);pointer-events:none;z-index:-1}