:root {
	--c-bg: #ffffff;
	--c-surface: #f7f8fa;
	--c-border: #e8eaed;
	--c-ink: #0d120f;
	--c-basis: #357f53;
	--c-ink-muted: #5a6170;
	--c-ink-faint: #9aa0ad;
	--c-accent: #000000;
	--c-accent-dark: #1040b0;
	--c-accent-light: #e9fee8;
	--c-signal: #e63946;
	--c-signal-bg: #fff0f1;
	--font-display: 'Syne', sans-serif;
	--font-body: 'DM Sans', sans-serif;
	--radius-sm: 8px;
	--radius-md: 16px;
	--radius-lg: 24px;
	--shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
	--shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
	--shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
	--shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.12);
}

/* DIFF GRID */
.diff-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 2px;
	background: var(--c-border);
	border-radius: var(--radius-lg);
	overflow: hidden;
}

.diff-card {
	background: #fff;
	padding: 36px 32px;
	transition: background 0.25s;
}

.diff-card:hover {
	background: var(--c-accent-light);
}

.diff-num {
	font-family: var(--font-display);
	font-size: 0.68rem;
	font-weight: 700;
	color: var(--c-ink-faint);
	letter-spacing: 0.1em;
	text-transform: uppercase;
	margin-bottom: 20px;
}

.diff-card h4 {
	font-family: var(--font-display);
	font-size: 1.05rem;
	font-weight: 700;
	color: var(--c-ink);
	margin-bottom: 10px;
	letter-spacing: -0.01em;
}

.diff-card p {
	font-size: 0.875rem;
	color: var(--c-ink-muted);
	line-height: 1.6;
	margin: 0;
}

/* LAYERS */
.layers-wrapper {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 24px;
}

.layer-card {
	background: var(--c-surface);
	border: 1px solid var(--c-border);
	border-radius: var(--radius-lg);
	padding: 32px;
	position: relative;
	overflow: hidden;
	transition: box-shadow 0.25s, transform 0.25s;
}

.layer-card:hover {
	box-shadow: var(--shadow-lg);
	transform: translateY(-2px);
}

.layer-card-accent {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 3px;
	border-radius: 3px 3px 0 0;
}

.layer-badge {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-size: 0.7rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	padding: 4px 10px;
	border-radius: 100px;
	margin-bottom: 20px;
}

.layer-card h4 {
	font-family: var(--font-display);
	font-size: 1.3rem;
	font-weight: 800;
	letter-spacing: -0.02em;
	color: var(--c-ink);
	margin-bottom: 10px;
}

.layer-card>p {
	font-size: 0.9rem;
	color: var(--c-ink-muted);
	line-height: 1.6;
	margin-bottom: 20px;
}

.layer-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
}

.layer-tag {
	background: rgba(255, 255, 255, .85);
	border: 1px solid var(--c-border);
	border-radius: 6px;
	padding: 4px 10px;
	font-size: 0.75rem;
	font-weight: 500;
	color: var(--c-ink-muted);
}

.layer-1 .layer-card-accent {
	background: linear-gradient(90deg, #3b82f6, #60a5fa);
}

.layer-1 .layer-badge {
	background: #eff6ff;
	color: #2563eb;
}

.layer-2 .layer-card-accent {
	background: linear-gradient(90deg, #f97316, #fb923c);
}

.layer-2 .layer-badge {
	background: #fff7ed;
	color: #ea580c;
}

.layer-3 .layer-card-accent {
	background: linear-gradient(90deg, #e63946, #ef4444);
}

.layer-3 .layer-badge {
	background: #fff1f2;
	color: #dc2626;
}

.layer-4 .layer-card-accent {
	background: linear-gradient(90deg, #8b5cf6, #a78bfa);
}

.layer-4 .layer-badge {
	background: #f5f3ff;
	color: #7c3aed;
}

/* ON DEMAND */
.ondemand-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 16px;
}

.ondemand-item {
	background: #fff;
	border: 1px solid var(--c-border);
	border-radius: var(--radius-md);
	padding: 24px;
	transition: box-shadow .2s, border-color .2s;
}

.ondemand-item:hover {
	box-shadow: var(--shadow-md);
	border-color: var(--c-accent);
}

.oi-icon {
	width: 44px;
	height: 44px;
	background: var(--c-accent-light);
	border-radius: var(--radius-sm);
	display: flex;
	align-items: center;
	justify-content: center;
	margin-bottom: 14px;
}

.oi-icon i {
	color: var(--c-accent);
	font-size: 1.1rem;
}

.ondemand-item h5 {
	font-family: var(--font-display);
	font-size: 0.9rem;
	font-weight: 700;
	color: var(--c-ink);
	margin-bottom: 6px;
}

.ondemand-item p {
	font-size: 0.82rem;
	color: var(--c-ink-muted);
	line-height: 1.55;
	margin: 0;
}

/* RESPONSIVE */
@media(max-width:1199px) {
	.pricing-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media(max-width:991px) {
	.diff-grid {
		grid-template-columns: repeat(2, 1fr);
	}

	.layers-wrapper {
		grid-template-columns: 1fr;
	}

	.ondemand-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media(max-width:767px) {
	section {
		padding: 64px 0;
	}

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

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

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

	.hero-metrics {
		gap: 20px;
	}
}