:root {
	--color-bg: #0b0f19;
	--color-bg-secondary: #111827;
	--color-surface: #1f2937;
	--color-surface-hover: #374151;
	--color-border: #2d3748;
	--color-border-light: #4b5563;
	--color-text: #f3f4f6;
	--color-text-muted: #9ca3af;
	--color-text-dim: #6b7280;
	--color-muted: var(--color-text-muted);
	--color-dim: var(--color-text-dim);
	--color-accent: #38bdf8;
	--color-accent-hover: #7dd3fc;
	--color-accent-secondary: #a855f7;
	--color-accent-green: #10b981;
	--font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
	--radius-sm: 6px;
	--radius-md: 10px;
	--radius-lg: 16px;
	--shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
	--shadow-md: 0 4px 14px rgba(0, 0, 0, 0.4);
	--transition: all 0.2s ease-in-out;
	--focus-ring-color: var(--color-accent);
	--focus-ring-width: 2px;
	--focus-ring-offset: 2px;
}

/* Shared keyboard focus indicator; :where() keeps specificity at zero so components can refine it. */
:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
	outline: var(--focus-ring-width) solid var(--focus-ring-color);
	outline-offset: var(--focus-ring-offset);
}

.site-switcher {
	position: relative;
	display: inline-block;
}

.site-switcher__toggle {
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
	background: transparent;
	border: 1px solid var(--color-border, rgba(128, 128, 128, 0.4));
	color: inherit;
	padding: 0.35rem 0.7rem;
	border-radius: 4px;
	font: inherit;
	font-size: 0.85rem;
	cursor: pointer;
}

.site-switcher__toggle:hover,
.site-switcher__toggle:focus-visible {
	border-color: var(--color-accent, #5865f2);
	color: var(--color-accent, #5865f2);
}

.site-switcher__caret {
	font-size: 0.7rem;
	transition: transform 0.15s ease;
}

.site-switcher.is-open .site-switcher__caret {
	transform: rotate(180deg);
}

.site-switcher__menu {
	position: absolute;
	top: calc(100% + 0.4rem);
	right: 0;
	z-index: 100;
	min-width: 9rem;
	margin: 0;
	padding: 0.35rem;
	list-style: none;
	background: var(--color-bg-secondary, #1c1c1e);
	border: 1px solid var(--color-border, rgba(128, 128, 128, 0.4));
	border-radius: 0.6rem;
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
	display: none;
}

.site-switcher.is-open .site-switcher__menu {
	display: block;
}

.site-switcher__menu a {
	display: block;
	padding: 0.4rem 0.6rem;
	border-radius: 0.4rem;
	text-decoration: none;
	color: inherit;
	font-size: 0.85rem;
}

.site-switcher__menu a:hover,
.site-switcher__menu a.active {
	background: var(--color-accent, #5865f2);
	color: #fff;
}

/* Mobile navigation keeps site destinations in normal flow, including without JS. */
.site-switcher--mobile { display: block; width: 100%; }
.site-switcher--mobile .site-switcher__label { display: block; padding: .35rem .6rem; font-weight: 700; }
.site-switcher--mobile .site-switcher__menu { position: static; display: grid; width: 100%; min-width: 0; box-sizing: border-box; box-shadow: none; margin: 0; }
.site-switcher--mobile .site-switcher__menu a { display: flex; align-items: center; min-height: 44px; box-sizing: border-box; }
.site-switcher--mobile .site-switcher__menu a.active,
.site-switcher--mobile .site-switcher__menu a:hover { background: var(--color-text, #fff); color: var(--color-bg, #111); }
.site-nav:has(.site-nav__mobile-menu[open]) { z-index: 60; }
.site-nav__mobile-menu[open] .site-nav__mobile-panel { max-height: calc(100dvh - 8rem); overflow-y: auto; }

/* Footer */
.site-footer {
	margin-top: 4rem;
	padding-top: 2rem;
	border-top: 1px solid var(--color-border);
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	align-items: center;
	gap: 1rem;
	font-size: 0.9rem;
	color: var(--color-text-dim);
}

.site-footer a {
	color: var(--color-text-muted);
}

.site-footer__socials {
	display: flex;
	gap: 1rem;
}

.site-footer__tagline {
	font-size: 0.85rem;
	margin-bottom: 0;
}

@media (max-width: 720px) {
	.site-footer,
	.site-footer__socials {
		justify-content: stretch;
	}

	.site-footer {
		margin-top: 3rem;
		align-items: flex-start;
		flex-direction: column;
	}
}

/* Shared production styles: imported by sync-sites into each site bundle. */
body:has(.privacy-choices) { padding-bottom: calc(6rem + env(safe-area-inset-bottom, 0px)); }
@media (max-width: 30rem) {
  body:has(.privacy-choices) { padding-bottom: calc(8rem + env(safe-area-inset-bottom, 0px)); }
}
.privacy-choices { position: fixed; z-index: 50; right: max(.75rem, env(safe-area-inset-right, 0px)); bottom: max(.75rem, env(safe-area-inset-bottom, 0px)); width: min(24rem, calc(100% - 1.5rem)); max-width: calc(100% - max(.75rem, env(safe-area-inset-left, 0px)) - max(.75rem, env(safe-area-inset-right, 0px))); max-height: calc(100dvh - max(.75rem, env(safe-area-inset-top, 0px)) - max(.75rem, env(safe-area-inset-bottom, 0px))); display: flex; flex-direction: column; align-items: flex-end; font-size: .9rem; }
.privacy-choices .privacy-panel { box-sizing: border-box; min-height: 0; flex: 0 1 auto; max-height: 65dvh; overflow-y: auto; overscroll-behavior: contain; width: 100%; padding: 1rem; background: var(--color-bg-secondary, #181b24); color: var(--color-text, #fff); border: 1px solid var(--color-border, #777); border-radius: .5rem; box-shadow: 0 3px 16px #0003; }
.privacy-choices .privacy-panel[hidden] { display: none; }
.privacy-choices .privacy-panel h2 { font-size: 1.1rem; margin: 0 0 .6rem; }
.privacy-choices .privacy-panel p { margin: .6rem 0; }
.privacy-choices .privacy-error:empty { display: none; }
.privacy-choices .privacy-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .5rem; }
.privacy-choices button, .privacy-choices .privacy-tab { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: .55rem .75rem; border: 1px solid var(--color-border, #777); border-radius: .3rem; background: var(--color-bg, #11141b); color: var(--color-text, #fff); font: inherit; cursor: pointer; }
.privacy-choices [data-privacy-close] { margin-top: .5rem; }
.privacy-choices .privacy-tab { flex-shrink: 0; box-sizing: border-box; }
.privacy-choices .privacy-status { flex-shrink: 0; max-width: 100%; margin: .4rem 0; font-size: .85rem; overflow-wrap: anywhere; }
.privacy-choices :focus-visible { outline: 3px solid var(--color-accent, #9cf); outline-offset: 3px; }

:root {
	color-scheme: dark;
	--color-bg: #0b0f19;
	--color-surface: #1f2937;
	--color-bg-secondary: #111827;
	--color-surface-hover: #374151;
	--color-border: #2d3748;
	--color-border-light: #4b5563;
	--color-media-frame: #0f172a;
	--color-text: #f3f4f6;
	--color-text-muted: #9ca3af;
	--color-text-dim: #6b7280;
	--color-accent: #38bdf8;
	--color-accent-hover: #0284c7;
	--color-button-hover: #7dd3fc;
	--color-accent-contrast: #000000;
	--color-accent-secondary: #a855f7;
	--color-accent-secondary-hover: #c084fc;
	--color-accent-green: #10b981;
}
:root {
	--content-width: 58rem;
}

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

html {
	scroll-behavior: smooth;
}

body {
	max-width: var(--content-width);
	margin: 0 auto;
	padding: 0 1.25rem 4rem;
	font-family: var(--font-sans);
	font-size: 1.05rem;
	line-height: 1.65;
	color: var(--color-text);
	background-color: var(--color-bg);
}

/* Typography */
h1, h2, h3, h4 {
	line-height: 1.25;
	color: var(--color-text);
	font-weight: 700;
	letter-spacing: -0.02em;
}

h1 {
	font-size: clamp(2.2rem, 5vw, 3.4rem);
	margin-top: 2rem;
	margin-bottom: 1rem;
}

h2 {
	font-size: clamp(1.6rem, 3.5vw, 2.2rem);
	margin-top: 2.5rem;
	margin-bottom: 1rem;
}

h3 {
	font-size: 1.35rem;
	margin-bottom: 0.5rem;
}

p {
	margin-bottom: 1rem;
	color: var(--color-text-muted);
}

a {
	color: var(--color-accent);
	text-decoration: none;
	transition: var(--transition);
}

a:hover, a:focus-visible {
	color: var(--color-accent-hover);
	text-decoration: underline;
}

/* Site Navigation */
.site-nav {
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 1rem;
	padding: 1.25rem 0;
	border-bottom: 1px solid var(--color-border);
	margin-bottom: 2rem;
}

.site-nav__brand {
	display: inline-flex;
	align-items: center;
	gap: 0.75rem;
	font-size: 1.25rem;
	font-weight: 700;
	color: var(--color-text);
}

.site-nav__brand:hover {
	text-decoration: none;
}

.site-nav__brand img {
	width: 38px;
	height: 38px;
	object-fit: contain;
}

.site-nav__links {
	display: flex;
	align-items: center;
	gap: 1.25rem;
	flex-wrap: wrap;
}

.site-nav__links a {
	color: var(--color-text-muted);
	font-weight: 500;
	font-size: 0.98rem;
}

.site-nav__links a:hover,
.site-nav__links a.active {
	color: var(--color-text);
	text-decoration: none;
}

.site-nav__mobile-menu {
	display: none;
}

/* Buttons & CTA */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.5rem;
	padding: 0.65rem 1.35rem;
	font-size: 0.95rem;
	font-weight: 600;
	border-radius: var(--radius-sm);
	transition: var(--transition);
	cursor: pointer;
	text-decoration: none !important;
	border: 1px solid transparent;
}

.btn-primary {
	background-color: var(--color-accent);
	color: var(--color-accent-contrast, #000);
}

.btn-primary:hover {
	background-color: var(--color-button-hover);
}

.btn-secondary {
	background-color: var(--color-surface);
	color: var(--color-text);
	border-color: var(--color-border);
}

.btn-secondary:hover {
	background-color: var(--color-surface-hover);
	border-color: var(--color-border-light);
}

.btn-accent {
	background-color: var(--color-accent-secondary);
	color: var(--color-accent-contrast, #000);
}

.btn-accent:hover {
	background-color: var(--color-accent-secondary-hover, var(--color-accent-secondary));
}

.btn-sm {
	padding: 0.4rem 0.85rem;
	font-size: 0.85rem;
}

/* Badges & Tags */
.tag {
	display: inline-block;
	padding: 0.2rem 0.65rem;
	font-size: 0.8rem;
	font-family: var(--font-mono);
	font-weight: 500;
	border-radius: 9999px;
	background-color: var(--color-surface);
	color: var(--color-accent);
	border: 1px solid var(--color-border);
}

.tag-teaching {
	color: var(--color-accent-secondary);
}

.tag-green {
	color: var(--color-accent-green);
	background-color: rgba(16, 185, 129, 0.1);
	border-color: rgba(16, 185, 129, 0.3);
}

/* Layout Cards & Grids */
.grid-2 {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
	gap: 1.5rem;
	margin: 1.5rem 0;
}

.grid-3 {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 1.25rem;
	margin: 1.5rem 0;
}

.card {
	background-color: var(--color-bg-secondary);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	padding: 1.5rem;
	transition: var(--transition);
	display: flex;
	flex-direction: column;
	justify-content: space-between;
}

.card:hover {
	border-color: var(--color-border-light);
	transform: translateY(-2px);
	box-shadow: var(--shadow-md);
}

.card-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: 0.75rem;
}

.card-icon {
	font-size: 1.8rem;
}

.card-title {
	margin-bottom: 0.5rem;
	color: var(--color-text);
}

.card-body p {
	font-size: 0.95rem;
	line-height: 1.55;
}

.card-footer {
	margin-top: 1.25rem;
	padding-top: 1rem;
	border-top: 1px solid var(--color-border);
	display: flex;
	align-items: center;
	justify-content: space-between;
}

/* Pricing Plans */
.plan-card--popular {
	border-color: var(--color-accent-green);
	box-shadow: 0 0 0 1px var(--color-accent-green);
}

.plan-price {
	margin-top: 0.75rem;
	display: flex;
	align-items: baseline;
	gap: 0.4rem;
}

.plan-price__amount {
	font-family: var(--font-mono);
	font-size: 1.75rem;
	font-weight: 700;
	color: var(--color-text);
}

.plan-price__suffix {
	font-size: 0.85rem;
	color: var(--color-text-dim);
}

/* Hero Section */
.hero {
	display: grid;
	grid-template-columns: 1fr 280px;
	align-items: center;
	gap: 2.5rem;
	padding: 2.5rem 0;
	border-bottom: 1px solid var(--color-border);
	margin-bottom: 2.5rem;
}

@media (max-width: 768px) {
	.hero {
		grid-template-columns: 1fr;
		text-align: center;
	}
	
	.hero__image {
		margin: 0 auto;
	}

	.hero__actions {
		justify-content: center;
	}
}

.hero__title {
	margin-top: 0;
	margin-bottom: 0.75rem;
}

.hero__subtitle {
	font-size: 1.2rem;
	color: var(--color-accent);
	font-weight: 600;
	margin-bottom: 1rem;
}

.hero__description {
	font-size: 1.08rem;
	margin-bottom: 1.5rem;
}

.hero__actions {
	display: flex;
	gap: 1rem;
	flex-wrap: wrap;
}

.hero__image img {
	width: 100%;
	max-width: 280px;
	height: auto;
	border-radius: var(--radius-md);
	border: 1px solid var(--color-border);
}

/* Sections */
section {
	margin: 3rem 0;
}

.section-header {
	margin-bottom: 1.5rem;
}

.section-header p {
	font-size: 1.05rem;
}

/* Forms */
.form-group {
	margin-bottom: 1.25rem;
}

.form-group label {
	display: block;
	margin-bottom: 0.4rem;
	font-weight: 600;
	font-size: 0.95rem;
	color: var(--color-text);
}

.form-control {
	width: 100%;
	padding: 0.75rem 1rem;
	background-color: var(--color-bg-secondary);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	color: var(--color-text);
	font-family: var(--font-sans);
	font-size: 1rem;
	transition: var(--transition);
}

.form-control:focus {
	border-color: var(--color-accent);
	box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

textarea.form-control {
	min-height: 120px;
	resize: vertical;
}

@media (max-width: 720px) {
	body {
		padding: 0 1rem 2.75rem;
		font-size: 1rem;
		line-height: 1.58;
	}

	h1 {
		font-size: clamp(2rem, 11vw, 2.65rem);
		margin-top: 1.4rem;
	}

	h2 {
		font-size: clamp(1.45rem, 8vw, 1.9rem);
		margin-top: 2rem;
	}

	.site-nav {
		position: sticky;
		top: 0;
		z-index: 20;
		align-items: stretch;
		gap: 0.75rem;
		padding: 0.85rem 0;
		margin-bottom: 1.4rem;
		background: var(--color-bg);
	}

	.site-nav__brand {
		min-width: 0;
		font-size: 1.05rem;
	}

	.site-nav__brand img {
		width: 34px;
		height: 34px;
	}

	.site-nav__links {
		display: none;
	}

	.site-nav__mobile-menu {
		display: block;
		width: 100%;
	}

	.site-nav__mobile-menu summary {
		display: flex;
		align-items: center;
		justify-content: space-between;
		width: 100%;
		padding: 0.65rem 0.85rem;
		border: 1px solid var(--color-border);
		border-radius: var(--radius-sm);
		background: var(--color-bg-secondary);
		color: var(--color-text);
		font-weight: 700;
		list-style: none;
		cursor: pointer;
	}

	.site-nav__mobile-menu summary::-webkit-details-marker {
		display: none;
	}

	.site-nav__mobile-menu summary::after {
		content: "";
		width: 0.55rem;
		height: 0.55rem;
		border-right: 2px solid currentColor;
		border-bottom: 2px solid currentColor;
		transform: rotate(45deg) translateY(-2px);
		transition: transform 0.18s ease;
	}

	.site-nav__mobile-menu[open] summary::after {
		transform: rotate(225deg) translateY(-2px);
	}

	.site-nav__mobile-panel {
		display: grid;
		gap: 0.6rem;
		margin-top: 0.65rem;
		padding: 0.75rem;
		border: 1px solid var(--color-border);
		border-radius: var(--radius-md);
		background: var(--color-bg-secondary);
		box-shadow: var(--shadow-md);
	}

	.site-nav__mobile-panel > a:not(.btn) {
		display: block;
		padding: 0.72rem 0.8rem;
		border-radius: var(--radius-sm);
		color: var(--color-text-muted);
		font-weight: 650;
	}

	.site-nav__mobile-panel > a:hover,
	.site-nav__mobile-panel > a.active {
		background: var(--color-surface);
		color: var(--color-text);
		text-decoration: none;
	}

	.site-nav__mobile-panel .btn,
	.site-nav__mobile-panel .site-switcher,
	.site-nav__mobile-panel .site-switcher__toggle {
		width: 100%;
	}

	.site-nav__mobile-panel .site-switcher__toggle {
		justify-content: center;
		padding: 0.6rem 0.8rem;
	}

	.site-nav__mobile-panel .site-switcher__menu {
		left: 0;
		right: 0;
		width: 100%;
	}

	.grid-2,
	.grid-3 {
		grid-template-columns: 1fr;
		gap: 1rem;
	}

	.card {
		padding: 1.1rem;
	}

	.card:hover {
		transform: none;
	}

	.card-header,
	.card-footer {
		align-items: flex-start;
		gap: 0.7rem;
	}

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

	.hero {
		gap: 1.5rem;
		padding: 1.5rem 0 2rem;
		margin-bottom: 2rem;
	}

	.hero__subtitle,
	.hero__description,
	.section-header p {
		font-size: 1rem;
	}

	.hero__actions {
		justify-content: stretch;
	}

	.hero__actions .btn,
	section .btn {
		width: 100%;
	}

	section {
		margin: 2.25rem 0;
	}

	.form-control {
		font-size: 1rem;
	}
}

@media (max-width: 420px) {
	body {
		padding-inline: 0.85rem;
	}

	.site-nav__brand span {
		overflow: hidden;
		text-overflow: ellipsis;
		white-space: nowrap;
	}

	.card {
		padding: 1rem;
	}
}