:root {
	--bg-color: #0f172a;
	--card-bg: #1e293b;
	--text-color: #f8fafc;
	--accent-color: #ef4444;
	--accent-hover: #dc2626;
	--muted-color: #94a3b8;
}

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

body {
	font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
	background-color: var(--bg-color);
	color: var(--text-color);
	line-height: 1.6;
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
}

.container {
	max-width: 900px;
	margin: 0 auto;
	padding: 2rem;
	text-align: center;
}

header {
	padding: 4rem 0 2rem;
}

h1 {
	font-size: 3rem;
	margin-bottom: 1rem;
	letter-spacing: -0.025em;
}

h1 span {
	color: var(--accent-color);
}

p.subtitle {
	font-size: 1.25rem;
	color: var(--muted-color);
	max-width: 600px;
	margin: 0 auto 2rem;
}

.error-code {
	font-size: 6rem;
	font-weight: 800;
	color: var(--accent-color);
	line-height: 1;
	margin-bottom: 1rem;
	letter-spacing: -0.05em;
}

.cta-button {
	display: inline-block;
	background-color: var(--accent-color);
	color: white;
	font-weight: 600;
	padding: 0.75rem 2rem;
	border: none;
	cursor: pointer;
	font-size: 1rem;
	font-family: inherit;
	border-radius: 9999px;
	text-decoration: none;
	transition: background-color 0.2s ease;
}

.cta-button:hover {
	background-color: var(--accent-hover);
}

.manifesto {
	margin: 3rem auto;
	max-width: 750px;
	text-align: left;
	background-color: var(--card-bg);
	padding: 2.5rem;
	border-radius: 1rem;
	border: 1px solid rgba(255, 255, 255, 0.05);
}

.manifesto h2 {
	font-size: 1.75rem;
	margin-bottom: 1.25rem;
	text-align: center;
}

.manifesto p {
	color: var(--muted-color);
	margin-bottom: 1.25rem;
	font-size: 1.05rem;
	line-height: 1.7;
}

.manifesto p:last-child {
	margin-bottom: 0;
}

.features {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
	gap: 1.5rem;
	margin: 4rem 0;
	text-align: left;
}

.card {
	background-color: var(--card-bg);
	padding: 2rem;
	border-radius: 1rem;
	border: 1px solid rgba(255, 255, 255, 0.05);
}

.card h3 {
	margin-bottom: 0.75rem;
	font-size: 1.25rem;
}

.card p {
	color: var(--muted-color);
	font-size: 0.95rem;
}

.newsletter-section {
	background-color: var(--card-bg);
	padding: 3rem 2rem;
	border-radius: 1rem;
	border: 1px solid rgba(255, 255, 255, 0.05);
	max-width: 650px;
	margin: 4rem auto 2rem;
	text-align: center;
}

.newsletter-section h3 {
	font-size: 1.75rem;
	margin-bottom: 0.75rem;
}

.newsletter-section p {
	color: var(--muted-color);
	margin-bottom: 2rem;
	font-size: 1rem;
}

.newsletter-form {
	display: flex;
	gap: 0.75rem;
	justify-content: center;
	flex-wrap: wrap;
}

.newsletter-form input[type="email"] {
	padding: 0.75rem 1.25rem;
	border-radius: 9999px;
	border: 1px solid rgba(255, 255, 255, 0.1);
	background-color: var(--bg-color);
	color: var(--text-color);
	font-size: 1rem;
	flex: 1;
	min-width: 260px;
	max-width: 380px;
	outline: none;
	transition: border-color 0.2s ease;
}

.newsletter-form input[type="email"]:focus {
	border-color: var(--accent-color);
}

footer {
	padding: 2rem 0;
	color: var(--muted-color);
	font-size: 0.875rem;
	border-top: 1px solid rgba(255, 255, 255, 0.05);
}