*, *::before, *::after { box-sizing: border-box; }

html, body {
	margin: 0;
	padding: 0;
	background: #0d1014;
	color: #c8ccd1;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
	font-size: 16px;
	line-height: 1.5;
	min-height: 100vh;
}

main {
	max-width: 1100px;
	margin: 0 auto;
	padding: 2.5rem 1.25rem 3rem;
}

header h1 {
	margin: 0 0 0.25rem;
	font-size: 1.6rem;
	font-weight: 500;
	letter-spacing: 0.01em;
	color: #e6e9ee;
}

header .sub {
	margin: 0 0 1.75rem;
	color: #7d848d;
	font-size: 0.95rem;
}

.stage {
	background: #000;
	border: 1px solid #1d2128;
	border-radius: 6px;
	overflow: hidden;
}

.frame {
	position: relative;
	width: 100%;
	padding-top: 56.25%;
}

.frame iframe {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	border: 0;
	display: block;
}

footer {
	margin-top: 1.5rem;
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem 2rem;
	color: #6b7178;
	font-size: 0.85rem;
}

footer p { margin: 0; }

@media (max-width: 480px) {
	main { padding: 1.25rem 0.75rem 2rem; }
	header h1 { font-size: 1.3rem; }
}