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

:root {
	--blue: #2563eb;
	--blue-hover: #1d4ed8;
	--gray-50: #f9fafb;
	--gray-300: #d1d5db;
	--gray-400: #9ca3af;
	--gray-600: #4b5563;
	--gray-700: #374151;
	--gray-800: #1f2937;
}

html {
	line-height: 1.5;
	-webkit-text-size-adjust: 100%;
}

body {
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	color: #111;
	display: flex;
	flex-direction: column;
	min-height: 100vh;
}

a {
	color: var(--blue);
	text-decoration: none;
}
a:hover {
	text-decoration: underline;
}

/* Container */
.container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 1.5rem;
}

/* Header */
header {
	background: var(--blue);
	color: #fff;
	padding: 1.5rem 0;
}
header .container {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	align-items: center;
	gap: 1rem;
}
header .logo {
	font-size: 1.5rem;
	font-weight: 700;
	color: #fff;
}
header .logo:hover {
	text-decoration: none;
}
header nav {
	display: flex;
	flex-wrap: wrap;
	gap: 1.5rem;
}
header nav a {
	color: #fff;
}

/* Main */
main {
	flex: 1;
}

/* Hero */
.hero {
	background: var(--blue);
	color: #fff;
	padding: 3rem 0;
}
.hero h1 {
	font-size: 2.5rem;
	font-weight: 700;
	margin-bottom: 1rem;
}
.hero p {
	font-size: 1.25rem;
	max-width: 48rem;
}

/* Content */
.content {
	padding: 3rem 0;
}
.content-inner {
	max-width: 56rem;
	margin: 0 auto;
}

/* Typography */
h2 {
	font-size: 1.875rem;
	font-weight: 700;
	margin-bottom: 1.5rem;
}
h3 {
	font-size: 1.5rem;
	font-weight: 600;
	margin-top: 2rem;
	margin-bottom: 1rem;
}
h4 {
	font-size: 1.25rem;
	font-weight: 600;
	margin-top: 1.5rem;
	margin-bottom: 0.75rem;
}
p {
	margin-bottom: 1rem;
}
ul {
	list-style: disc;
	padding-left: 1.5rem;
	margin-bottom: 1rem;
}
li {
	margin-bottom: 0.5rem;
}

/* Section dividers */
section {
	margin-bottom: 4rem;
}
section > h2 {
	border-bottom: 1px solid #e5e7eb;
	padding-bottom: 0.5rem;
}

/* Card grid */
.card-grid {
	display: grid;
	gap: 2rem;
	margin-top: 3rem;
}
.card {
	background: var(--gray-50);
	padding: 1.5rem;
	border-radius: 0.5rem;
	box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}
.card h3 {
	margin-top: 0;
}

/* Numbered list (philosophy) */
.numbered-list {
	display: flex;
	flex-direction: column;
	gap: 1.5rem;
}
.numbered-item {
	display: flex;
	gap: 1rem;
}
.number-circle {
	flex-shrink: 0;
	width: 2.5rem;
	height: 2.5rem;
	border-radius: 50%;
	background: var(--blue);
	color: #fff;
	font-weight: 700;
	display: flex;
	align-items: center;
	justify-content: center;
}

/* Highlight box */
.highlight {
	background: var(--gray-50);
	padding: 1.5rem;
	border-radius: 0.5rem;
	box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}
.status-badge {
	margin-top: 1rem;
	padding: 1rem;
	background: #eff6ff;
	border-left: 4px solid var(--blue);
	font-size: 0.875rem;
	color: #1d4ed8;
}

/* CTA */
.cta {
	text-align: center;
	padding: 3rem 0;
}
.btn {
	display: inline-block;
	background: var(--blue);
	color: #fff;
	font-weight: 700;
	padding: 0.75rem 1.5rem;
	border-radius: 0.5rem;
	transition: background 0.2s;
}
.btn:hover {
	background: var(--blue-hover);
	text-decoration: none;
}

/* Alt background section */
.bg-alt {
	background: var(--gray-50);
	padding: 3rem 0;
}

/* Footer */
footer {
	background: var(--gray-800);
	color: #fff;
	padding: 2rem 0;
}
footer .container {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	gap: 2rem;
}
footer h3 {
	font-size: 1.25rem;
	margin-top: 0;
	margin-bottom: 1rem;
}
footer h4 {
	font-size: 1.125rem;
	margin-top: 0;
	margin-bottom: 0.75rem;
}
footer p,
footer a {
	color: var(--gray-300);
}
footer a:hover {
	color: #fff;
}
footer .bottom {
	margin-top: 2rem;
	padding-top: 2rem;
	border-top: 1px solid var(--gray-700);
	text-align: center;
	color: var(--gray-400);
}

/* Two-column layout */
.two-col {
	display: grid;
	gap: 3rem;
}

/* Responsive */
@media (min-width: 768px) {
	.hero h1 {
		font-size: 3rem;
	}
	.card-grid {
		grid-template-columns: 1fr 1fr;
	}
	.two-col {
		grid-template-columns: 1fr 1fr;
	}
}