:root {
	color-scheme: dark;
	--bg: #07111f;
	--panel: rgba(10, 18, 34, 0.78);
	--text: #edf4ff;
	--muted: #9db0c8;
	--accent: #6be4c8;
	--border: rgba(255, 255, 255, 0.1);
	--shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

* {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	min-height: 100vh;
	font-family: "Trebuchet MS", "Segoe UI", sans-serif;
	color: var(--text);
	background:
		radial-gradient(circle at top left, rgba(122, 167, 255, 0.22), transparent 34%),
		radial-gradient(circle at right 20%, rgba(107, 228, 200, 0.16), transparent 28%),
		linear-gradient(180deg, #09101b 0%, var(--bg) 100%);
}

body::before {
	content: "";
	position: fixed;
	inset: 0;
	pointer-events: none;
	background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
		linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
	background-size: 44px 44px;
	mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.35));
}

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

.social-link {
	display: inline-block;
	margin-top: 8px;
	padding: 8px 12px;
	border: 1px solid rgba(107, 228, 200, 0.35);
	border-radius: 999px;
	background: rgba(107, 228, 200, 0.08);
	color: var(--text);
	font-weight: 600;
	text-decoration: underline;
	text-decoration-thickness: 1.5px;
	text-underline-offset: 0.18em;
	transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.social-link:hover,
.social-link:focus-visible {
	background: rgba(107, 228, 200, 0.16);
	border-color: rgba(107, 228, 200, 0.7);
	transform: translateY(-1px);
	outline: none;
}

.page-shell {
	width: min(1120px, calc(100% - 32px));
	margin: 0 auto;
	padding: 24px 0 40px;
}

.hero {
	display: grid;
	grid-template-columns: 1.4fr 0.9fr;
	gap: 24px;
	align-items: stretch;
	padding: 30px;
	border: 1px solid var(--border);
	border-radius: 28px;
	background: linear-gradient(145deg, rgba(14, 24, 42, 0.96), rgba(9, 16, 29, 0.9));
	box-shadow: var(--shadow);
}

.eyebrow,
.section-label,
.poc-card__tag {
	margin: 0 0 12px;
	text-transform: uppercase;
	letter-spacing: 0.16em;
	font-size: 0.74rem;
	color: var(--accent);
}

.hero h1,
.intro h2,
.poc-card h3 {
	margin: 0;
	line-height: 1.02;
	font-family: "Georgia", "Times New Roman", serif;
}

.hero h1 {
	font-size: clamp(2.8rem, 6vw, 5.6rem);
	max-width: 10ch;
}

.hero__lead,
.intro p,
.poc-card p,
.panel-card p,
.site-footer p {
	color: var(--muted);
	line-height: 1.65;
}

.hero__lead {
	max-width: 58ch;
	margin: 18px 0 0;
	font-size: 1.05rem;
}

.site-nav {
	position: sticky;
	top: 16px;
	z-index: 10;
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	padding: 14px;
	margin: 18px 0 0;
	border: 1px solid var(--border);
	border-radius: 999px;
	backdrop-filter: blur(16px);
	background: rgba(9, 16, 29, 0.72);
	box-shadow: 0 18px 30px rgba(0, 0, 0, 0.18);
}

.site-nav a {
	padding: 10px 14px;
	border-radius: 999px;
	color: var(--muted);
	transition: background 160ms ease, color 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
	background: rgba(255, 255, 255, 0.07);
	color: var(--text);
	outline: none;
}

.section {
	margin-top: 22px;
	padding: 28px;
	border-radius: 28px;
	border: 1px solid var(--border);
	background: var(--panel);
	box-shadow: var(--shadow);
}

.intro {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 20px;
	align-items: end;
}

.intro h2 {
	font-size: clamp(1.8rem, 3vw, 3rem);
}

.poc-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 18px;
	background: transparent;
	box-shadow: none;
	border: 0;
	padding: 0;
}

.poc-card {
	min-height: 220px;
	padding: 22px;
	border-radius: 24px;
	border: 1px solid var(--border);
	background: linear-gradient(180deg, rgba(17, 29, 48, 0.96), rgba(10, 19, 34, 0.95));
	box-shadow: var(--shadow);
}

.poc-card h3 {
	margin-top: 6px;
	font-size: 1.45rem;
}

.poc-card p {
	margin-bottom: 0;
}

.site-footer {
	padding: 26px 8px 0;
	text-align: center;
}

.site-footer p {
	margin: 0;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 24px;
    border-radius: 14px;
    box-shadow: 0 8px 24px rgba(16, 32, 56, 0.12);
}

.container.section {
	margin-top: 22px;
	padding: 28px;
	border-radius: 28px;
	border: 1px solid var(--border);
	background: var(--panel);
	box-shadow: var(--shadow);
}

.poc-page h1,
.poc-page h2 {
	font-family: "Georgia", "Times New Roman", serif;
	line-height: 1.1;
	margin: 0;
}

.poc-page h1 {
	font-size: clamp(2rem, 4.8vw, 3.4rem);
	margin-bottom: 14px;
}

.poc-page h2 {
	font-size: clamp(1.2rem, 2.3vw, 1.65rem);
	margin-top: 28px;
	margin-bottom: 10px;
}

.poc-page p,
.poc-page li {
	color: var(--muted);
	line-height: 1.7;
}

.poc-page ul {
	margin: 0;
	padding-left: 1.2rem;
}

video {
    width: 100%;
    border-radius: 12px;
    background: #000;
    margin-top: 8px;
}

.poc-page video {
	border: 1px solid var(--border);
	border-radius: 16px;
	box-shadow: 0 14px 28px rgba(0, 0, 0, 0.28);
}

@media (max-width: 920px) {
	.hero,
	.intro,
	.poc-grid {
		grid-template-columns: 1fr;
	}

	.hero h1 {
		max-width: none;
	}

	.site-nav {
		border-radius: 22px;
	}
}

@media (max-width: 640px) {
	.page-shell {
		width: min(100% - 20px, 1120px);
		padding-top: 10px;
	}

	.hero,
	.section,
	.container.section {
		padding: 20px;
		border-radius: 22px;
	}

	.hero h1 {
		font-size: clamp(2.2rem, 12vw, 3.6rem);
	}

	.site-nav {
		top: 10px;
		padding: 10px;
	}

	.site-nav a {
		width: 100%;
	}
}
.nav-toggle {
    display: none;
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
    font: inherit;
}

.nav-toggle__icon {
    display: inline-block;
    width: 18px;
    height: 2px;
    background: currentColor;
    position: relative;
    margin-right: 10px;
    vertical-align: middle;
}

.nav-toggle__icon::before,
.nav-toggle__icon::after {
    content: "";
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    background: currentColor;
}

.nav-toggle__icon::before {
    top: -6px;
}

.nav-toggle__icon::after {
    top: 6px;
}

.site-nav__links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

@media (max-width: 640px) {
    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .site-nav__links {
        display: none;
        width: 100%;
        margin-top: 10px;
    }

    .site-nav.is-open .site-nav__links {
        display: grid;
        grid-template-columns: 1fr;
    }

    .site-nav a {
        width: 100%;
        text-align: center;
    }
}

/* Ensure the toggle button is hidden on wider (desktop) screens */
@media (min-width: 641px) {
	.nav-toggle {
		display: none !important;
	}
}