:root {
	color-scheme: light;
	font-family: 'Inter', system-ui, -apple-system, sans-serif;
	--green-950: #052e16;
	--green-900: #14532d;
	--green-800: #166534;
	--green-700: #15803d;
	--green-600: #16a34a;
	--green-100: #dcfce7;
	--green-50: #f0fdf4;
	--amber-500: #f59e0b;
	--amber-400: #fbbf24;
	--amber-600: #d97706;
	--neutral-50: #fafafa;
	--neutral-100: #f5f5f5;
	--neutral-200: #e5e5e5;
	--neutral-400: #a3a3a3;
	--neutral-600: #525252;
	--neutral-700: #404040;
	--neutral-800: #262626;
	--neutral-900: #171717;
	--radius: 10px;
	--max-width: 1140px;
}

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

html {
	scroll-behavior: smooth;
}

body {
	background: #fff;
	color: var(--neutral-800);
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}

a {
	color: inherit;
	text-decoration: none;
}

img {
	max-width: 100%;
}

/* ---- NAV ---- */
.nav {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 100;
	background: rgba(255, 255, 255, 0.92);
	backdrop-filter: blur(12px);
	border-bottom: 1px solid var(--neutral-200);
}

.nav-inner {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 0 24px;
	height: 64px;
	display: flex;
	align-items: center;
	justify-content: space-between;
}

.logo {
	font-weight: 800;
	font-size: 1.25rem;
	color: var(--green-800);
	letter-spacing: -0.02em;
}

.nav-links {
	display: flex;
	align-items: center;
	gap: 32px;
	font-size: 0.9rem;
	color: var(--neutral-600);
}

.nav-links a:hover {
	color: var(--green-800);
}

.mobile-toggle {
	display: none;
	background: none;
	border: none;
	cursor: pointer;
	color: var(--neutral-700);
}

.mobile-menu {
	display: none;
	position: fixed;
	top: 64px;
	left: 0;
	right: 0;
	z-index: 99;
	background: #fff;
	border-bottom: 1px solid var(--neutral-200);
	padding: 16px 24px;
	flex-direction: column;
	gap: 16px;
	font-size: 1rem;
}

.mobile-menu.open {
	display: flex;
}

/* ---- BUTTONS ---- */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	background: var(--green-800);
	color: #fff;
	font-weight: 600;
	font-size: 0.95rem;
	padding: 10px 22px;
	border-radius: var(--radius);
	border: none;
	cursor: pointer;
	transition: background 0.2s, transform 0.15s;
}

.btn:hover {
	background: var(--green-700);
	transform: translateY(-1px);
}

.btn:active {
	transform: translateY(0);
}

.btn-sm {
	padding: 8px 18px;
	font-size: 0.85rem;
}

.btn-lg {
	padding: 14px 32px;
	font-size: 1.1rem;
}

.btn-cta {
	background: var(--amber-500);
	color: var(--green-950);
	font-size: 1.15rem;
	padding: 16px 40px;
}

.btn-cta:hover {
	background: var(--amber-400);
}

/* ---- HERO ---- */
.hero {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 120px 24px 80px;
	display: grid;
	grid-template-columns: 1.1fr 0.9fr;
	gap: 60px;
	align-items: center;
}

.hero-tag {
	font-size: 0.85rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--green-700);
	margin-bottom: 16px;
}

.hero h1 {
	font-size: clamp(2.2rem, 5vw, 3.5rem);
	font-weight: 800;
	line-height: 1.12;
	letter-spacing: -0.03em;
	color: var(--green-950);
	margin-bottom: 20px;
}

.highlight {
	color: var(--amber-600);
}

.hero-sub {
	font-size: 1.1rem;
	color: var(--neutral-600);
	max-width: 520px;
	line-height: 1.7;
	margin-bottom: 32px;
}

.hero-actions {
	display: flex;
	align-items: center;
	gap: 16px;
	flex-wrap: wrap;
	margin-bottom: 48px;
}

.hero-note {
	font-size: 0.82rem;
	color: var(--neutral-400);
}

.proof-bar {
	display: flex;
	align-items: center;
	gap: 24px;
	padding-top: 32px;
	border-top: 1px solid var(--neutral-200);
}

.proof-stat strong {
	display: block;
	font-size: 1.25rem;
	font-weight: 800;
	color: var(--green-900);
}

.proof-stat span {
	font-size: 0.8rem;
	color: var(--neutral-400);
}

.proof-stat strong {
	display: flex;
	align-items: center;
	gap: 4px;
}

.star-icon {
	width: 16px;
	height: 16px;
	color: var(--amber-500);
	fill: var(--amber-500);
}

.proof-divider {
	width: 1px;
	height: 36px;
	background: var(--neutral-200);
}

/* ---- ENERGY METER ---- */
.hero-visual {
	display: flex;
	justify-content: center;
}

.energy-meter {
	background: var(--green-50);
	border: 1px solid var(--green-100);
	border-radius: 20px;
	padding: 36px;
	width: 100%;
	max-width: 380px;
}

.meter-ring {
	position: relative;
	width: 180px;
	height: 180px;
	margin: 0 auto 28px;
}

.meter-ring svg {
	width: 100%;
	height: 100%;
	transform: rotate(-90deg);
}

.ring-bg {
	fill: none;
	stroke: var(--neutral-200);
	stroke-width: 10;
}

.ring-fill {
	fill: none;
	stroke: var(--green-600);
	stroke-width: 10;
	stroke-linecap: round;
	stroke-dasharray: 534;
	stroke-dashoffset: 534;
	transition: stroke-dashoffset 1.5s ease;
}

.ring-fill.animated {
	stroke-dashoffset: 214;
}

.meter-center {
	position: absolute;
	inset: 0;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
}

.meter-value {
	font-size: 2.8rem;
	font-weight: 800;
	color: var(--green-900);
	line-height: 1;
	letter-spacing: -0.03em;
}

.meter-unit {
	font-size: 0.95rem;
	font-weight: 600;
	color: var(--green-700);
}

.meter-label {
	font-size: 0.75rem;
	color: var(--neutral-400);
	margin-top: 4px;
}

.meter-breakdown {
	display: flex;
	flex-direction: column;
	gap: 10px;
}

.breakdown-item {
	display: flex;
	align-items: center;
	gap: 10px;
	font-size: 0.88rem;
}

.dot {
	width: 10px;
	height: 10px;
	border-radius: 50%;
	flex-shrink: 0;
}

.dot-1 {
	background: var(--green-600);
}

.dot-2 {
	background: var(--green-700);
}

.dot-3 {
	background: var(--amber-500);
}

.dot-4 {
	background: var(--neutral-400);
}

.breakdown-name {
	flex: 1;
	color: var(--neutral-600);
}

.breakdown-val {
	font-weight: 600;
	color: var(--neutral-800);
}

/* ---- PROBLEM / HOW IT WORKS ---- */
.problem {
	background: var(--green-950);
	color: #fff;
	padding: 100px 24px;
}

.section-inner {
	max-width: var(--max-width);
	margin: 0 auto;
}

.problem h2 {
	font-size: clamp(1.6rem, 3.5vw, 2.4rem);
	font-weight: 800;
	line-height: 1.2;
	letter-spacing: -0.02em;
	margin-bottom: 16px;
}

.problem h2 em {
	font-style: normal;
	color: var(--amber-400);
}

.problem-sub {
	font-size: 1.05rem;
	color: rgba(255, 255, 255, 0.65);
	max-width: 620px;
	margin-bottom: 56px;
	line-height: 1.7;
}

.steps {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 40px;
}

.step {
	padding: 32px;
	background: rgba(255, 255, 255, 0.06);
	border-radius: var(--radius);
	border: 1px solid rgba(255, 255, 255, 0.1);
}

.step-num {
	width: 36px;
	height: 36px;
	display: flex;
	align-items: center;
	justify-content: center;
	background: var(--amber-500);
	color: var(--green-950);
	font-weight: 800;
	font-size: 0.9rem;
	border-radius: 50%;
	margin-bottom: 20px;
}

.step h3 {
	font-size: 1.15rem;
	font-weight: 700;
	margin-bottom: 10px;
}

.step p {
	font-size: 0.92rem;
	color: rgba(255, 255, 255, 0.6);
	line-height: 1.65;
}

/* ---- SAVINGS / CASE STUDIES ---- */
.savings {
	padding: 100px 24px;
	background: var(--neutral-50);
}

.savings h2 {
	font-size: clamp(1.6rem, 3.5vw, 2.4rem);
	font-weight: 800;
	line-height: 1.2;
	letter-spacing: -0.02em;
	margin-bottom: 8px;
}

.savings-sub {
	font-size: 1.05rem;
	color: var(--neutral-600);
	margin-bottom: 48px;
}

.case-cards {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 24px;
}

.case-card {
	background: #fff;
	border: 1px solid var(--neutral-200);
	border-radius: var(--radius);
	padding: 28px;
	transition: box-shadow 0.2s;
}

.case-card:hover {
	box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.case-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 14px;
	font-size: 0.85rem;
}

.case-location {
	display: flex;
	align-items: center;
	gap: 4px;
	color: var(--neutral-400);
}

.case-location svg {
	width: 14px;
	height: 14px;
}

.case-saving {
	font-weight: 700;
	color: var(--green-700);
}

.case-card p {
	font-size: 0.95rem;
	color: var(--neutral-700);
	line-height: 1.65;
	margin-bottom: 16px;
}

.case-tag {
	font-size: 0.78rem;
	font-weight: 600;
	color: var(--neutral-400);
	text-transform: uppercase;
	letter-spacing: 0.05em;
}

/* ---- SPECS ---- */
.specs {
	padding: 100px 24px;
}

.specs h2 {
	font-size: clamp(1.6rem, 3.5vw, 2.4rem);
	font-weight: 800;
	letter-spacing: -0.02em;
	margin-bottom: 48px;
}

.specs-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 32px;
}

.spec-item {
	padding: 28px;
	border: 1px solid var(--neutral-200);
	border-radius: var(--radius);
	transition: border-color 0.2s;
}

.spec-item:hover {
	border-color: var(--green-600);
}

.spec-item svg {
	width: 24px;
	height: 24px;
	color: var(--green-700);
	margin-bottom: 16px;
}

.spec-item h3 {
	font-size: 1rem;
	font-weight: 700;
	margin-bottom: 6px;
}

.spec-item p {
	font-size: 0.88rem;
	color: var(--neutral-600);
	line-height: 1.6;
}

/* ---- CTA ---- */
.cta {
	padding: 100px 24px;
	background: var(--green-50);
}

.cta-inner {
	text-align: center;
}

.cta h2 {
	font-size: clamp(1.8rem, 4vw, 2.8rem);
	font-weight: 800;
	letter-spacing: -0.02em;
	color: var(--green-950);
	margin-bottom: 12px;
}

.cta p {
	font-size: 1.1rem;
	color: var(--neutral-600);
	margin-bottom: 32px;
}

.cta-note {
	display: block;
	margin-top: 16px;
	font-size: 0.82rem;
	color: var(--neutral-400);
}

/* ---- FOOTER ---- */
.footer {
	padding: 60px 24px 40px;
	border-top: 1px solid var(--neutral-200);
}

.footer-inner {
	max-width: var(--max-width);
	margin: 0 auto;
	display: flex;
	align-items: start;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 32px;
}

.footer-brand p {
	font-size: 0.85rem;
	color: var(--neutral-400);
	margin-top: 8px;
}

.footer-links {
	display: flex;
	gap: 24px;
	font-size: 0.88rem;
	color: var(--neutral-600);
}

.footer-links a:hover {
	color: var(--green-800);
}

.footer-copy {
	width: 100%;
	font-size: 0.8rem;
	color: var(--neutral-400);
	margin-top: 24px;
	padding-top: 24px;
	border-top: 1px solid var(--neutral-100);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
	.nav-links {
		display: none;
	}

	.mobile-toggle {
		display: block;
	}

	.hero {
		grid-template-columns: 1fr;
		padding: 100px 20px 60px;
		gap: 40px;
	}

	.hero h1 br {
		display: none;
	}

	.proof-bar {
		flex-wrap: wrap;
		gap: 16px;
	}

	.proof-divider {
		display: none;
	}

	.steps,
	.case-cards,
	.specs-grid {
		grid-template-columns: 1fr;
	}

	.problem,
	.savings,
	.specs,
	.cta {
		padding: 72px 20px;
	}

	.hide-mobile {
		display: none;
	}

	.footer-inner {
		flex-direction: column;
	}

	.footer-links {
		flex-wrap: wrap;
		gap: 16px;
	}
}

@media (max-width: 480px) {
	.hero h1 {
		font-size: 1.8rem;
	}

	.btn-lg {
		width: 100%;
		text-align: center;
	}

	.btn-cta {
		width: 100%;
	}

	.energy-meter {
		padding: 24px;
	}
}