* {
	box-sizing: border-box;
}

body {
	margin: 0;
	font-family: "Trebuchet MS", "Segoe UI", sans-serif;
	background: #f6f6f6;
	color: #111;
}

a {
	color: inherit;
}

main {
	padding: 0 20px 40px;
}

.page-header {
	padding: 28px 20px;
}

.primary-navigation {
	display: grid;
	grid-template-columns: minmax(150px, 1.4fr) repeat(4, minmax(110px, 1fr));
	gap: 10px;
	max-width: 980px;
	margin: 0 auto;
	background: transparent;
}

.brand-link,
.navigation-link {
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 62px;
	padding: 12px 18px;
	background: #fff;
	border-radius: 14px;
	text-decoration: none;
	color: inherit;
	font-size: 1rem;
	line-height: 1;
}

.brand-link {
	font-weight: 700;
	justify-content: flex-start;
	padding-left: 20px;
}

.navigation-link:hover {
	background: #f0f0f0;
}

.navigation-link.is-current {
	background: #dfdfdf;
	font-weight: 600;
}

.content-panel {
	max-width: 980px;
	margin: 24px auto 0;
	padding: 28px;
	background: #fff;
	border-radius: 22px;
	box-shadow: 0 18px 40px rgba(17, 17, 17, 0.08);
}

.intro-panel {
	text-align: left;
}

.intro-panel h1,
.section-header h2,
.call-to-action h2 {
	margin: 8px 0 0;
	font-size: clamp(2rem, 4vw, 3.4rem);
	line-height: 1.05;
}

.intro-panel p,
.section-header p,
.faq-accordion p {
	max-width: 62ch;
	color: #4f4f4f;
	line-height: 1.6;
}

.section-kicker,
.card-kicker,
.footer-branding {
	text-transform: uppercase;
	letter-spacing: 0.12em;
	font-size: 0.78rem;
	font-weight: 700;
}

.learning-grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 18px;
	max-width: 980px;
	margin: 24px auto 0;
}

.learning-card {
	display: grid;
	grid-template-columns: 140px 1fr;
	gap: 18px;
	padding: 22px;
	background: #fff;
	border-radius: 22px;
	box-shadow: 0 18px 40px rgba(17, 17, 17, 0.06);
}

.learning-card__visual {
	min-height: 140px;
	border-radius: 18px;
	background: linear-gradient(145deg, #dcdcdc, #f1f1f1);
	border: 1px solid #d0d0d0;
}

.learning-card__visual--muted {
	background: linear-gradient(145deg, #e8e8e8, #cfcfcf);
}

.learning-card__visual--light {
	background: linear-gradient(145deg, #dedede, #fafafa);
}

.learning-card h2 {
	margin: 6px 0 10px;
	font-size: 1.3rem;
	line-height: 1.2;
}

.learning-card p,
.call-to-action p,
.page-footer p,
.page-footer a {
	line-height: 1.6;
	color: #4f4f4f;
}

.faq-section,
.call-to-action {
	display: grid;
	gap: 22px;
}

.call-to-action__link {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 12px 18px;
	border-radius: 999px;
	background: #111;
	color: #fff;
	text-decoration: none;
	width: fit-content;
}

.faq-accordion {
	display: grid;
	gap: 12px;
}

.faq-accordion details {
	padding: 16px 18px;
	border-radius: 16px;
	background: #f8f8f8;
	border: 1px solid #e4e4e4;
}

.faq-accordion summary {
	font-weight: 700;
	cursor: pointer;
}

.call-to-action {
	grid-template-columns: 1fr auto;
	align-items: center;
}

.page-footer {
	display: grid;
	gap: 12px;
	max-width: 980px;
	margin: 24px auto 0;
	padding: 0 4px 28px;
	text-align: right;
}

.page-footer nav {
	display: flex;
	flex-wrap: wrap;
	justify-content: flex-end;
	gap: 14px;
}

.page-footer a {
	text-decoration: none;
}

@media (max-width: 760px) {
	main {
		padding: 0 16px 32px;
	}

	.primary-navigation {
		grid-template-columns: repeat(2, minmax(140px, 1fr));
	}

	.brand-link {
		grid-column: 1 / -1;
		justify-content: center;
		padding-left: 18px;
	}

	.content-panel,
	.learning-grid,
	.page-footer {
		margin-left: 0;
		max-width: none;
	}

	.learning-grid,
	.call-to-action {
		grid-template-columns: 1fr;
	}

	.learning-card {
		grid-template-columns: 1fr;
	}

	.page-footer {
		text-align: left;
	}

	.page-footer nav {
		justify-content: flex-start;
	}
}