/* ===== Fonts (local) ===== */
@font-face {
	font-family: 'Rajdhani';
	src: url('../fonts/Rajdhani-Regular.ttf') format('truetype');
	font-weight: 400;
	font-style: normal;
	font-display: swap;
}
@font-face {
	font-family: 'Rajdhani';
	src: url('../fonts/Rajdhani-Bold.ttf') format('truetype');
	font-weight: 700;
	font-style: normal;
	font-display: swap;
}
@font-face {
	font-family: 'Inter';
	src: url('../fonts/Inter-Regular.ttf') format('truetype');
	font-weight: 400;
	font-style: normal;
	font-display: swap;
}

/* ===== CSS Variables & Base ===== */
:root {
	--bg: #0a0c10;
	--panel: #0f1217;
	--ink: #e6e7ea;
	--muted: #9aa2ad;
	--accent: #ff4455;
	--accent-2: #3ad1a1;
	--ring: rgba(255, 255, 255, 0.06);
	--shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 24px rgba(0, 0, 0, 0.35);
}
* {
	box-sizing: border-box;
}
html,
body {
	height: 100%;
}
body {
	margin: 0;
	background: radial-gradient(
			1200px 600px at 70% -10%,
			#1b1f27 0%,
			var(--bg) 65%
		)
		no-repeat fixed;
	color: var(--ink);
	font: 16px/1.6 Inter, system-ui, -apple-system, 'Segoe UI', Roboto, Arial,
		sans-serif;
}
.visually-hidden {
	position: absolute !important;
	width: 1px;
	height: 1px;
	overflow: hidden;
	clip: rect(1px, 1px, 1px, 1px);
	white-space: nowrap;
}
.container {
	width: 100%;
	max-width: 1200px;
	padding: 0 16px;
	margin: 0 auto;
}
.img-350 {
	width: 100%;
	max-width: 350px;
	height: auto;
	display: block;
}
.section {
	padding: 64px 0;
}
.h2 {
	margin: 0 0 10px;
	font-family: Rajdhani, Inter, sans-serif;
	font-size: clamp(22px, 4.6vw, 34px);
	letter-spacing: 0.04em;
}
.section-head {
	max-width: 70ch;
	margin-bottom: 18px;
}
.section-lead {
	color: #c9cfda;
}

/* ===== Header (fixed) ===== */
.site-header {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 1000;
	background: rgba(10, 12, 16, 0.82);
	border-bottom: 1px solid rgba(255, 255, 255, 0.06);
	backdrop-filter: blur(6px);
}
.header-row {
	height: 64px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
}
.brand {
	display: flex;
	align-items: center;
	gap: 10px;
	text-decoration: none;
	color: var(--ink);
}
.brand-logo {
	width: 32px;
	height: auto;
	border-radius: 6px;
	box-shadow: var(--shadow);
}
.brand-text {
	font-family: Rajdhani, Inter, sans-serif;
	font-weight: 700;
	letter-spacing: 0.06em;
}
.main-nav ul {
	margin: 0;
	padding: 0;
	list-style: none;
	display: flex;
	gap: 18px;
}
.nav-link {
	color: var(--muted);
	text-decoration: none;
	font-weight: 600;
	letter-spacing: 0.02em;
	padding: 8px 10px;
	border-radius: 10px;
	transition: transform 0.2s, color 0.2s, background 0.2s;
}
.nav-link:hover,
.nav-link:focus {
	color: var(--ink);
	background: rgba(255, 255, 255, 0.06);
	transform: translateY(-1px);
}
.nav-toggle {
	display: none;
	background: none;
	border: 0;
	padding: 6px 4px;
	cursor: pointer;
}
.nav-toggle .bar {
	display: block;
	width: 22px;
	height: 2px;
	background: #d9dde4;
	margin: 4px 0;
	border-radius: 2px;
}
/* Mobile menu open state */
.main-nav.open ul {
	display: block;
	position: absolute;
	right: 12px;
	top: 64px;
	background: #0b0e12;
	padding: 12px;
	border: 1px solid rgba(255, 255, 255, 0.12);
	border-radius: 12px;
	box-shadow: var(--shadow);
}
.main-nav.open ul li {
	margin: 6px 0;
}
/* Push for fixed header */
#main {
	padding-top: 72px;
}
/* Header scrolled */
.site-header.scrolled {
	box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
}

/* ===== Buttons (shared) ===== */
.btn {
	display: inline-block;
	padding: 12px 18px;
	border-radius: 12px;
	text-decoration: none;
	font-weight: 700;
	letter-spacing: 0.02em;
	transition: transform 0.18s, box-shadow 0.18s, background 0.18s, color 0.18s;
}
.btn.primary {
	background: var(--accent);
	color: #fff;
	box-shadow: var(--shadow);
}
.btn.primary:hover {
	transform: translateY(-2px);
	box-shadow: 0 6px 20px rgba(255, 68, 85, 0.35);
}
.btn.ghost {
	background: transparent;
	color: var(--ink);
	border: 1px solid rgba(255, 255, 255, 0.18);
}
.btn.ghost:hover {
	background: rgba(255, 255, 255, 0.06);
}

/* ===== Footer (shared) ===== */
.site-footer {
	margin-top: 48px;
	border-top: 1px solid rgba(255, 255, 255, 0.06);
	background: #0b0e12;
}
.footer-grid {
	display: grid;
	grid-template-columns: 1.2fr 1fr 1fr;
	gap: 16px;
	padding: 24px 0;
}
.footer-brand {
	font-family: Rajdhani, Inter, sans-serif;
	font-weight: 700;
	letter-spacing: 0.08em;
	margin: 0 0 6px;
}
.footer-legal a {
	color: #b8c0cb;
	text-decoration: none;
	margin-right: 10px;
}
.footer-legal a:hover {
	color: #fff;
}
.to-top {
	margin-left: 8px;
	padding: 8px 10px;
	border-radius: 10px;
	border: 1px solid rgba(255, 255, 255, 0.16);
	background: transparent;
	color: #d7dde6;
	cursor: pointer;
	transition: background 0.2s, transform 0.2s;
}
.to-top:hover {
	background: rgba(255, 255, 255, 0.06);
	transform: translateY(-1px);
}

/* ===== Reveal animations (shared) ===== */
[data-animate] {
	opacity: 0;
	transform: translateY(16px);
}
[data-animate].visible {
	opacity: 1;
	transform: none;
	transition: opacity 0.6s, transform 0.6s;
}
[data-animate='fade-in'].visible,
[data-animate='fade-up'].visible {
	transition-duration: 0.7s;
}

/* ===== Shared responsive ===== */
@media (max-width: 1024px) {
	.footer-grid {
		grid-template-columns: 1fr 1fr;
	}
}
@media (max-width: 768px) {
	.header-row {
		height: 60px;
	}
	.main-nav ul {
		display: none;
	}
	.nav-toggle {
		display: block;
	}
}
@media (max-width: 360px) {
	.container {
		padding: 0 12px;
	}
	.footer-grid {
		grid-template-columns: 1fr;
	}
}

/* Motion safety */
@media (prefers-reduced-motion: reduce) {
	[data-animate] {
		transition: none;
		opacity: 1;
		transform: none;
	}
}
/* ====== Footer ====== */
.footer {
	background: #0a0d12;
	border-top: 1px solid rgba(255, 255, 255, 0.08);
	padding: 28px 0;
	margin-top: 40px;
}

.footer-container {
	display: grid;
	grid-template-columns: 2fr 1fr 1fr;
	gap: 28px;
	align-items: start;
}

.footer-column {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.footer-brand {
	font-size: 18px;
	font-weight: 700;
	color: #fff;
	margin-bottom: 6px;
	letter-spacing: 0.03em;
}

.footer a {
	color: #aeb6c3;
	transition: color 0.2s ease;
}
.footer a:hover {
	color: #fff;
}

.back-to-top {
	background: var(--accent-2, #3ad1a1);
	color: #fff;
	padding: 10px 16px;
	border: none;
	border-radius: 10px;
	cursor: pointer;
	font-weight: 600;
	transition: background 0.2s ease, transform 0.2s ease;
}
.back-to-top:hover {
	background: #2bb489;
	transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 768px) {
	.footer-container {
		grid-template-columns: 1fr;
		gap: 20px;
		text-align: center;
	}
	.footer-column {
		align-items: center;
	}
}
html {
	scroll-behavior: smooth;
}