@import url("https://fonts.googleapis.com/css2?family=Sora:wght@400;600;700&family=Space+Grotesk:wght@500;700&display=swap");

:root {
	--bg-0: #0e1324;
	--bg-1: #171e38;
	--surface: #201436;
	--surface-soft: #231d45;
	--accent: #8a63ff;
	--accent-2: #60172e;
	--text-main: #f1f2ff;
	--text-soft: #aaafd1;
	--line: #322f58;
	--card-shadow: 0 10px 28px rgba(6, 8, 20, 0.45);
}

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

body {
	font-family: "Sora", sans-serif;
	background: linear-gradient(180deg, var(--bg-0), var(--bg-1));
	color: var(--text-main);
	min-height: 100vh;
	text-align: center;
}

main {
	width: min(1120px, 92vw);
	margin: 0 auto;
	padding: 34px 0 48px;
}

.page-intro {
	width: 100%;
	margin: 0 0 28px;
	padding: 24px;
	border: 1px solid var(--line);
	border-radius: 14px;
	background: linear-gradient(
		180deg,
		rgba(138, 99, 255, 0.08),
		rgba(96, 23, 46, 0.18)
	);
	text-align: left;
	box-shadow: var(--card-shadow);
}

.page-intro .eyebrow {
	font-size: 0.74rem;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	font-weight: 700;
	color: #c4b7ff;
	margin-bottom: 8px;
}

.page-intro h1 {
	font-family: "Space Grotesk", sans-serif;
	font-size: clamp(1.5rem, 4vw, 2.4rem);
	margin-bottom: 8px;
}

.page-intro p {
	color: var(--text-soft);
	font-size: 0.95rem;
	line-height: 1.55;
}

.playlist-link {
	display: inline-block;
	margin-top: 14px;
	padding: 8px 12px;
	border-radius: 9px;
	border: 1px solid #56318b;
	background: #241846;
	color: #d4c7ff;
	text-decoration: none;
	font-size: 0.85rem;
	font-weight: 600;
}

#challenges {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
	gap: 22px;
	align-items: stretch;
}

.challenge-card {
	background: linear-gradient(180deg, var(--surface), var(--surface-soft));
	border: 1px solid var(--line);
	border-radius: 14px;
	box-shadow: var(--card-shadow);
	padding: 12px;
	display: flex;
	flex-direction: column;
	height: 100%;
	text-align: left;
	text-decoration: none;
	position: relative;
	overflow: hidden;
	color: var(--text-main);
	opacity: 0;
	transform: translateY(16px);
	transition: transform 0.25s ease, box-shadow 0.25s ease, opacity 0.25s ease;
}

.challenge-card::after {
	content: "";
	position: absolute;
	inset: auto 0 0 0;
	height: 2px;
	background: linear-gradient(90deg, #3f2d75, #6c2340);
	pointer-events: none;
}

.challenge-card.visible {
	opacity: 1;
	transform: translateY(0);
}

.challenge-card:hover {
	transform: translateY(-3px);
	box-shadow: 0 14px 28px rgba(6, 8, 20, 0.55);
}

.challenge-card:focus-visible {
	outline: 3px solid var(--accent);
	outline-offset: 2px;
}

.challenge-card img {
	width: 100%;
	height: 170px;
	object-fit: cover;
	border-radius: 10px;
	margin-bottom: 10px;
	border: 1px solid #3a3661;
}

.challenge-card h2 {
	font-family: "Space Grotesk", sans-serif;
	font-size: 1.2rem;
	margin-bottom: 8px;
}

.challenge-card .summary {
	font-size: 0.93rem;
	line-height: 1.45;
	color: var(--text-soft);
	margin-bottom: 22px;
}

.challenge-card .date {
	display: inline-flex;
	align-items: center;
	margin-top: auto;
	align-self: flex-start;
	font-size: 0.78rem;
	font-weight: 600;
	letter-spacing: 0.03em;
	color: #cdb7ff;
	background: #2a214f;
	border: 1px solid #4f3a86;
	padding: 6px 10px;
	border-radius: 999px;
}

.modal {
	display: none;
	position: fixed;
	inset: 0;
	background: rgba(8, 12, 24, 0.78);
	justify-content: center;
	align-items: center;
	z-index: 10;
	padding: 20px;
}

.modal-content {
	background: #191e38;
	padding: 22px;
	border-radius: 14px;
	text-align: center;
	box-shadow: 0 10px 24px rgba(5, 8, 20, 0.65);
	max-width: 420px;
	border: 1px solid #35325a;
}

.modal-content p {
	font-size: 0.97rem;
	line-height: 1.5;
	color: var(--text-main);
	margin-bottom: 15px;
}

button {
	background: #6f4de3;
	color: #f4f1ff;
	border: none;
	padding: 10px 22px;
	font-size: 0.92rem;
	font-family: "Space Grotesk", sans-serif;
	font-weight: 700;
	border-radius: 999px;
	cursor: pointer;
	transition: transform 0.2s ease, background 0.2s ease;
}

button:hover {
	background: #7f5cf4;
	transform: translateY(-1px);
}

@media (max-width: 700px) {
	main {
		width: min(95vw, 500px);
	}

	.challenge-card img {
		height: 150px;
	}
}