@import url("https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Inter:wght@400;500;600&display=swap");

*,
*::before,
*::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

:root {
	--bg: #0a0a0a;
	--surface: #111111;
	--surface2: #1a1a1a;
	--accent: #e8ff00;
	--accent-dim: #b8cc00;
	--text: #f0f0f0;
	--text-muted: #666;
	--correct: #00ff88;
	--wrong: #ff3b3b;
	--border: #2a2a2a;
	--radius: 4px;
}

body {
	margin: 0;
	padding: 0;
	display: flex;
	justify-content: center;
	align-items: center;
	width: 100vw;
	height: 100vh;
	background-color: var(--bg);
	background-image:
		linear-gradient(rgba(232, 255, 0, 0.03) 1px, transparent 1px),
		linear-gradient(90deg, rgba(232, 255, 0, 0.03) 1px, transparent 1px);
	background-size: 40px 40px;
	font-family: "Inter", sans-serif;
	color: var(--text);
	transition: background-color 0.3s ease;
}

body.correct {
	background-color: #001a0d;
}

body.wrong {
	background-color: #1a0000;
}

main {
	width: 680px;
	max-width: 90%;
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	overflow: hidden;
	position: relative;
}

main::before {
	content: "QUIZ";
	font-family: "Bebas Neue", sans-serif;
	font-size: 120px;
	color: rgba(232, 255, 0, 0.04);
	position: absolute;
	top: -20px;
	right: -10px;
	line-height: 1;
	pointer-events: none;
	user-select: none;
}

#question-container {
	padding: 40px 40px 20px;
}

#question {
	font-family: "Bebas Neue", sans-serif;
	font-size: 36px;
	line-height: 1.1;
	letter-spacing: 0.5px;
	color: var(--text);
	margin-bottom: 32px;
	padding-bottom: 24px;
	border-bottom: 1px solid var(--border);
}

#answer-buttons {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 10px;
	margin-bottom: 8px;
}

.btn {
	padding: 14px 18px;
	border: 1px solid var(--border);
	border-radius: var(--radius);
	background-color: var(--surface2);
	color: var(--text);
	font-family: "Inter", sans-serif;
	font-size: 14px;
	font-weight: 500;
	cursor: pointer;
	text-align: left;
	transition:
		border-color 0.15s,
		background-color 0.15s,
		transform 0.1s;
	position: relative;
	overflow: hidden;
}

.btn::before {
	content: "";
	position: absolute;
	left: 0;
	top: 0;
	height: 100%;
	width: 3px;
	background: var(--accent);
	transform: scaleY(0);
	transition: transform 0.15s;
}

.btn:hover {
	border-color: var(--accent);
	background-color: #1e1e00;
}

.btn:hover::before {
	transform: scaleY(1);
}

.btn:active {
	transform: scale(0.98);
}

.btn.correct {
	background-color: #001a0d;
	border-color: var(--correct);
	color: var(--correct);
}

.btn.correct::before {
	background: var(--correct);
	transform: scaleY(1);
}

.btn.wrong {
	background-color: #1a0000;
	border-color: var(--wrong);
	color: var(--wrong);
}

.btn.wrong::before {
	background: var(--wrong);
	transform: scaleY(1);
}

#controls {
	display: flex;
	justify-content: center;
	align-items: center;
	padding: 20px 40px 32px;
	gap: 12px;
}

.start-btn,
.next-btn {
	font-family: "Bebas Neue", sans-serif;
	font-size: 22px;
	letter-spacing: 1.5px;
	padding: 12px 40px;
	background: var(--accent);
	color: #0a0a0a;
	border: none;
	border-radius: var(--radius);
	cursor: pointer;
	transition:
		background-color 0.15s,
		transform 0.1s;
	text-transform: uppercase;
}

.start-btn:hover,
.next-btn:hover {
	background-color: var(--accent-dim);
}

.start-btn:active,
.next-btn:active {
	transform: scale(0.97);
}

.hide {
	display: none;
}