css html,
body {
	margin: 0;
	background: #0b1020;
	color: #e9f0ff;
	font-family: ui-sans-serif, system-ui, Segoe UI, Roboto, Helvetica, Arial
}

.wrap {
	max-width: 960px;
	margin: 0 auto;
	padding: 24px
}

header {
	display: flex;
	align-items: center;
	gap: 12px;
	margin-bottom: 16px
}

h1 {
	font-size: 20px;
	margin: 0
}

.card {
	background: #121a33;
	border: 1px solid #22305b;
	border-radius: 16px;
	box-shadow: 0 10px 30px rgba(0, 0, 0, .25)
}

.imgbox {
	position: relative;
	display: flex;
	align-items: center;
	justify-content: center;
	background: #0a0f1f;
	border-bottom: 1px solid #22305b;
	height: 420px;
	overflow: hidden
}

.imgbox.is-loading .imgtrack {
	opacity: 0
}

.imgtrack {
	display: flex;
	align-items: center;
	width: 100%;
	height: 100%;
	transform: translateX(0);
	transition: transform .45s ease, opacity .25s ease;
	opacity: 1
}

.img-slide {
	flex: 0 0 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 6px 0
}

.img-slide img {
	max-width: 100%;
	max-height: 100%;
	object-fit: contain;
	display: block
}

.image-nav {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	display: flex;
	align-items: center;
	justify-content: center;
	width: 36px;
	height: 36px;
	border-radius: 999px;
	border: 1px solid rgba(233, 240, 255, .4);
	background: rgba(11, 16, 32, .65);
	color: #e9f0ff;
	font-size: 20px;
	cursor: pointer;
	transition: background .2s ease, opacity .2s ease
}

.image-nav--prev {
	left: 16px
}

.image-nav--next {
	right: 16px
}

.image-nav:hover {
	background: rgba(33, 46, 83, .85)
}

.image-nav:disabled,
.imgbox.is-loading .image-nav {
	opacity: .3;
	cursor: not-allowed;
	pointer-events: none
}

.image-nav.is-hidden {
	display: none
}

.img-message {
	padding: 0 20px;
	text-align: center;
	color: #c6d3f6;
	font-size: 14px
}

.row {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 10px;
	padding: 12px
}

button {
	padding: 10px 12px;
	border-radius: 12px;
	background: #1c2b57;
	color: #e9f0ff;
	border: 1px solid #2c3f7a;
	cursor: pointer;
	text-align: left
}

button:hover {
	background: #233569
}

button.correct {
	background: #1c5131;
	border-color: #2e8b57
}

button.wrong {
	background: #5a1c24;
	border-color: #a33
}

.meta {
	opacity: .85;
	font-size: 12px
}

.toolbar {
	display: flex;
	gap: 10px;
	justify-content: space-between;
	padding: 12px
}

.ghost {
	opacity: .6
}

.footer {
	opacity: .7;
	margin-top: 18px;
	font-size: 12px
}

.attribution {
	border-top: 1px solid #22305b;
	padding: 10px 12px;
	font-size: 13px;
	line-height: 1.4
}

.attribution a {
	color: #cfe1ff
}

.right {
	display: flex;
	gap: 10px
}