.intro[hidden], .intro button[hidden] { display: none; }
.intro { position: fixed; inset: 0; z-index: 10; background: #000; display: grid; place-items: center; }
.intro video { display: block; width: 100%; height: 100%; object-fit: contain; }
.intro button { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); padding: 14px 24px; border: 1px solid #fff9; border-radius: 999px; background: #111d; color: white; font: inherit; cursor: pointer; }
.intro button:focus-visible { outline: 3px solid white; outline-offset: 5px; }
body.intro-playing { overflow: hidden; }