.gtsv-bday {
	position: fixed;
	inset: 0;
	z-index: 2147483000;
	background: radial-gradient(ellipse at 50% 110%, #1a1340 0%, #070714 55%, #000 100%);
	opacity: 0;
	transition: opacity .6s ease;
	overflow: hidden;
}
.gtsv-bday.is-visible { opacity: 1; }

.gtsv-bday__canvas {
	position: absolute;
	inset: 0;
	display: block;
}

.gtsv-bday__close {
	position: absolute;
	top: 16px;
	right: 16px;
	z-index: 2;
	width: 44px;
	height: 44px;
	border: 1px solid rgba(255,255,255,.35);
	border-radius: 50%;
	background: rgba(0,0,0,.35);
	color: #fff;
	font: 28px/1 system-ui, sans-serif;
	cursor: pointer;
	padding: 0;
}
.gtsv-bday__close:hover,
.gtsv-bday__close:focus-visible { background: rgba(255,255,255,.2); outline: none; }

.gtsv-bday__msg {
	position: absolute;
	inset: 0;
	z-index: 1;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	padding: 24px;
	text-align: center;
	pointer-events: none;
	opacity: 0;
	transform: scale(.85);
	transition: opacity 1.2s ease, transform 1.2s cubic-bezier(.2,.9,.3,1.3);
}
.gtsv-bday.is-message .gtsv-bday__msg { opacity: 1; transform: none; }

.gtsv-bday__lead,
.gtsv-bday__name { margin: 0; }

.gtsv-bday__lead {
	color: #fff;
	font: 600 clamp(1.3rem, 4vw, 2.6rem)/1.25 Georgia, "Times New Roman", serif;
	text-shadow: 0 0 18px rgba(255,210,120,.6);
	margin-bottom: .4em;
}

.gtsv-bday__name {
	font: 800 clamp(2rem, 8vw, 5.5rem)/1.1 Georgia, "Times New Roman", serif;
	background: linear-gradient(90deg, #ffd86b, #ff7eb3, #8ec5ff, #ffd86b);
	background-size: 300% 100%;
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
	filter: drop-shadow(0 0 14px rgba(255,200,120,.45));
	animation: gtsv-bday-shine 6s linear infinite;
}

@keyframes gtsv-bday-shine {
	to { background-position: 300% 0; }
}

@media (prefers-reduced-motion: reduce) {
	.gtsv-bday, .gtsv-bday__msg { transition: none; }
	.gtsv-bday__name { animation: none; }
}