html,
body {
	width: 100%;
	height: 100%;
	margin: 0;
	overflow: hidden;
	background: #000000;
}

canvas {
	display: block;
	width: 100%;
	height: 100%;
}

.scene-canvas {
	opacity: 0;
}

#intro-overlay {
	position: fixed;
	inset: 0;
	z-index: 80;
	display: flex;
	align-items: center;
	justify-content: center;
	background: #000000;
	opacity: 1;
	pointer-events: none;
}

#intro-letter {
	font-family: Impact, "Arial Black", sans-serif;
	font-size: min(82vh, 82vw);
	line-height: 0.86;
	font-weight: 900;
	letter-spacing: 0.02em;
	color: #ffffff;
	text-transform: uppercase;
	opacity: 0;
	user-select: none;
	will-change: transform, opacity;
	transform-origin: 50% 50%;
}

body.intro-active #renderer-info,
body.intro-active .site-footer {
	opacity: 0;
}

#renderer-info {
	position: fixed;
	top: 12px;
	left: 12px;
	z-index: 20;
	padding: 7px 10px;
	border-radius: 8px;
	background: rgba(6, 8, 18, 0.75);
	color: #dcecff;
	font: 12px/1.35 "Segoe UI", sans-serif;
	letter-spacing: 0.02em;
	pointer-events: none;
}

.site-footer {
	position: fixed;
	left: 18px;
	bottom: 16px;
	z-index: 22;
	font-family: "Segoe UI", sans-serif;
	font-size: 1rem;
	line-height: 1.3;
	letter-spacing: 0.01em;
	color: rgba(228, 236, 248, 0.92);
	text-shadow: 0 1px 10px rgba(0, 0, 0, 0.48);
	user-select: none;
}

.site-footer-copy {
	white-space: nowrap;
}

.site-footer-email {
	position: relative;
	display: inline-block;
	padding-bottom: 2px;
	color: rgba(228, 236, 248, 0.94);
	text-decoration: none;
	white-space: nowrap;
	transition: color 180ms ease;
}

.site-footer-email::after {
	content: "";
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0;
	height: 1px;
	background: currentColor;
	transform: scaleX(0);
	transform-origin: left center;
	transition: transform 240ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.site-footer-email:hover,
.site-footer-email:focus-visible {
	color: #ffffff;
}

.site-footer-email:hover::after,
.site-footer-email:focus-visible::after {
	transform: scaleX(1);
}

.site-footer-email:focus-visible {
	outline: 1px solid rgba(255, 255, 255, 0.45);
	outline-offset: 3px;
	border-radius: 2px;
}