body
{
	margin: 0;
	font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	background: radial-gradient(circle at top, #23395d, #090b10 65%);
	color: #f5f7fb;
	min-height: 100vh;
	display: flex;
	align-items: center;
	justify-content: center;
}

main
{
	width: min(900px, 92vw);
	padding: 48px;
	box-sizing: border-box;
	background: rgba(255, 255, 255, 0.07);
	border: 1px solid rgba(255, 255, 255, 0.16);
	border-radius: 28px;
	box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
	backdrop-filter: blur(12px);
}

h1
{
	font-size: clamp(2.4rem, 7vw, 5rem);
	line-height: 0.95;
	margin: 0 0 18px;
}

p
{
	font-size: 1.15rem;
	color: #cbd5e1;
	max-width: 650px;
}

.demo-card
{
	display: block;
	margin-top: 34px;
	padding: 24px;
	border-radius: 20px;
	text-decoration: none;
	color: white;
	background: linear-gradient(135deg, rgba(255, 80, 40, 0.18), rgba(255, 180, 0, 0.22));
	border: 1px solid rgba(255, 255, 255, 0.22);
	transition: border-color 180ms ease, background 180ms ease;
}

.demo-card:hover
{
	border-color: rgba(255, 255, 255, 0.55);
	background: linear-gradient(135deg, rgba(255, 80, 40, 0.28), rgba(255, 180, 0, 0.34));
}

.demo-card strong
{
	display: block;
	font-size: 1.6rem;
	margin-bottom: 8px;
}

.demo-card span
{
	color: #dbeafe;
}