.dave-welcome{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:24px;padding:24px clamp(20px,5vw,80px);background:#081c38;color:white}
.dave-welcome h2{font-size:clamp(2rem,4vw,4rem);line-height:1.05;margin:12px 0 20px;max-width:620px}
.dave-welcome p{font-size:18px;line-height:1.5;color:#c0cede;max-width:520px}
.dave-stage{position:relative;max-width:670px;width:100%;justify-self:center}
.dave-stage video{width:100%;height:auto;max-height:calc(100svh - 170px);object-fit:contain;display:block;background:transparent}
.dave-controls{position:absolute;z-index:1;left:0;right:0;bottom:clamp(48px,10vh,90px);display:flex;gap:12px;flex-wrap:wrap;justify-content:center;padding:8px}
.dave-controls button{font:600 16px system-ui;border:1px solid #48d9ff;border-radius:8px;padding:12px 18px;color:white;background:#102f51;cursor:pointer}
.dave-controls button:focus-visible{outline:3px solid #fce579;outline-offset:3px}
@media(max-width:760px){.dave-welcome{grid-template-columns:1fr;gap:0}.dave-stage{max-width:540px}.dave-welcome h2{font-size:2.4rem}}