#app{background-color:var(--color-bg-secondary);max-width:800px;box-shadow:0 2px 8px var(--color-shadow);border-radius:8px;margin:0 auto;padding:40px}h1{text-align:center}.logo{width:100px;height:auto;margin:0 auto 20px;display:block}.video{aspect-ratio:16/9;width:100%;position:relative}.video iframe{border:0;width:100%;height:100%}