*{box-sizing:border-box}
html,body{height:100%;margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial;color:#fff}
.bg{position:fixed;inset:0;overflow:hidden;background:#001f3f}
.bg video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.container{min-height:100vh;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:2rem;position:relative;z-index:1}
.container::before{content:"";position:fixed;inset:0;background:linear-gradient(rgba(4,6,12,0.25),rgba(6,8,20,0.35));mix-blend:multiply;z-index:0}
h1{font-size:clamp(2.5rem,8vw,6rem);margin:0;letter-spacing:0.02em;color:#ffffff;position:relative;z-index:2;opacity:1}
.subtitle{margin-top:1rem;font-size:1.1rem;opacity:0.9}

/* If the video fails we keep the navy background; `.video-failed` is available for custom styling */
.video-failed .container::before{background:linear-gradient(rgba(4,6,12,0.25),rgba(6,8,20,0.35))}

@media (max-width:600px){
  h1{font-size:3.2rem}
  .subtitle{font-size:1rem}
}