* {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: Arial, Helvetica, sans-serif;
	background: #f4f6fb;
	color: #1a1a1a;
	line-height: 1.6;
}

.inner {
	width: min(1100px, calc(100% - 30px));
	margin: 0 auto;
}

.site-header {
	background: #ffffff;
	border-bottom: 1px solid #dfe5ef;
	position: sticky;
	top: 0;
	z-index: 1000;
}

.site-header .inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 14px 0;
	gap: 20px;
}

.brand {
	display: flex;
	align-items: center;
	gap: 14px;
}

.brand-mark {
	width: 52px;
	height: 52px;
	border-radius: 14px;
	background: #1f4d8f;
	color: #ffffff;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: bold;
	font-size: 18px;
}

.brand h1 {
	margin: 0;
	font-size: 22px;
}

.tagline {
	margin: 2px 0 0;
	color: #5c6470;
	font-size: 14px;
}

.hero {
	background: linear-gradient(135deg, #1f4d8f, #3b6db3);
	color: #ffffff;
	padding: 70px 0;
}

.hero h2 {
	margin: 0 0 14px;
	font-size: 38px;
	line-height: 1.15;
}

.hero p {
	margin: 0;
	max-width: 700px;
	font-size: 18px;
}

.hero-actions {
	margin-top: 24px;
	display: flex;
	gap: 12px;
	flex-wrap: wrap;
}

.btn,
.install-btn {
	display: inline-block;
	border: none;
	border-radius: 12px;
	padding: 12px 18px;
	text-decoration: none;
	font-weight: bold;
	cursor: pointer;
	font-size: 15px;
}

.btn-primary,
.install-btn {
	background: #1f4d8f;
	color: #ffffff;
}

.btn-secondary {
	background: #ffffff;
	color: #1f4d8f;
}

.cards-section {
	padding: 30px 0;
}

.card-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 18px;
}

.card {
	background: #ffffff;
	border: 1px solid #dfe5ef;
	border-radius: 18px;
	padding: 22px;
	text-decoration: none;
	color: inherit;
	box-shadow: 0 6px 18px rgba(0, 0, 0, 0.04);
	transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
	transform: translateY(-2px);
	box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
}

.card h3 {
	margin-top: 0;
	margin-bottom: 10px;
	font-size: 22px;
	color: #1f4d8f;
}

.card p {
	margin: 0;
	color: #4c5562;
}

.content-section {
	padding: 25px 0;
}

.content-section.alt {
	background: #edf2fb;
}

.content-box {
	background: #ffffff;
	border: 1px solid #dfe5ef;
	border-radius: 18px;
	padding: 24px;
	box-shadow: 0 6px 18px rgba(0, 0, 0, 0.04);
}

.content-section h2 {
	margin-top: 0;
	font-size: 30px;
	color: #1f4d8f;
}

.site-footer {
	padding: 25px 0 45px;
	text-align: center;
	color: #5c6470;
}

@media (max-width: 900px) {
	.card-grid {
		grid-template-columns: repeat(2, 1fr);
	}

	.hero h2 {
		font-size: 30px;
	}
}

@media (max-width: 640px) {
	.site-header .inner {
		flex-direction: column;
		align-items: flex-start;
	}

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

	.hero {
		padding: 50px 0;
	}

	.hero h2 {
		font-size: 26px;
	}

	.hero p {
		font-size: 16px;
	}
}