:root {
	--bg: #f5efe7;
	--panel: rgba(255, 251, 246, 0.9);
	--panel-strong: #fffdf9;
	--text: #1e2533;
	--muted: #5d6676;
	--wa-color-text-normal: var(--text);
	--wa-color-text-quiet: var(--muted);
	--primary: #0f766e;
	--accent: #c55a2b;
	--line: rgba(30, 37, 51, 0.12);
	--shadow: 0 22px 48px rgba(30, 37, 51, 0.12);
	--topic-card-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.48), rgba(255, 255, 255, 0.14)), rgba(255, 252, 247, 0.94);
	--topic-card-bg-hover: linear-gradient(180deg, rgba(255, 255, 255, 0.52), rgba(255, 255, 255, 0.18)), rgba(255, 253, 249, 0.98);
	--topic-card-bg-checked: linear-gradient(135deg, rgba(15, 118, 110, 0.14), rgba(197, 90, 43, 0.12)), rgba(255, 250, 243, 0.98);
	--topic-card-border: rgba(30, 37, 51, 0.12);
	--topic-card-border-hover: rgba(15, 118, 110, 0.32);
	--topic-card-border-checked: rgba(15, 118, 110, 0.72);
	--topic-card-selected-ring: rgba(15, 118, 110, 0.22);
	--topic-card-focus-ring: rgba(197, 90, 43, 0.42);
	--topic-card-shadow: 0 22px 48px rgba(30, 37, 51, 0.12);
	--topic-card-shadow-hover: 0 24px 50px rgba(30, 37, 51, 0.16);
	--topic-card-shadow-checked: 0 28px 54px rgba(15, 118, 110, 0.2);
	--display: Georgia, "Times New Roman", serif;
	--sans: "Trebuchet MS", "Segoe UI", sans-serif;
}

:root[data-theme="dark"] {
	--bg: #0f172a;
	--panel: rgba(15, 23, 42, 0.86);
	--panel-strong: rgba(30, 41, 59, 0.98);
	--text: #e8eef8;
	--muted: #a6b3c7;
	--wa-color-text-normal: var(--text);
	--wa-color-text-quiet: var(--muted);
	--primary: #5eead4;
	--accent: #f59e0b;
	--line: rgba(148, 163, 184, 0.2);
	--shadow: 0 22px 48px rgba(2, 8, 23, 0.44);
	--topic-card-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01)), rgba(17, 24, 39, 0.96);
	--topic-card-bg-hover: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015)), rgba(22, 31, 52, 0.98);
	--topic-card-bg-checked: linear-gradient(135deg, rgba(94, 234, 212, 0.16), rgba(245, 158, 11, 0.14)), rgba(18, 35, 52, 0.98);
	--topic-card-border: rgba(148, 163, 184, 0.24);
	--topic-card-border-hover: rgba(94, 234, 212, 0.38);
	--topic-card-border-checked: rgba(94, 234, 212, 0.72);
	--topic-card-selected-ring: rgba(94, 234, 212, 0.2);
	--topic-card-focus-ring: rgba(245, 158, 11, 0.42);
	--topic-card-shadow: 0 22px 48px rgba(2, 8, 23, 0.44);
	--topic-card-shadow-hover: 0 24px 50px rgba(2, 8, 23, 0.52);
	--topic-card-shadow-checked: 0 30px 58px rgba(3, 12, 28, 0.62);
}

* {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: var(--sans);
	color: var(--text);
	background:
		radial-gradient(circle at top left, rgba(197, 90, 43, 0.14), transparent 28rem),
		radial-gradient(circle at top right, rgba(15, 118, 110, 0.16), transparent 28rem),
		var(--bg);
}

h1,
h2,
h3,
h4,
h5,
h6 {
	color: var(--wa-color-text-normal);
}

body::before {
	content: "";
	position: fixed;
	inset: 0;
	pointer-events: none;
	background-image:
		linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
		linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
	background-size: 24px 24px;
	mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 80%);
	opacity: 0.25;
}

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

img {
	display: block;
	max-width: 100%;
}

button {
	font: inherit;
}

code {
	padding: 0.08rem 0.35rem;
	border-radius: 0.4rem;
	background: rgba(15, 118, 110, 0.12);
	color: var(--text);
	font-family: Consolas, "Courier New", monospace;
	font-size: 0.95em;
}

.container {
	width: min(1120px, calc(100% - 2rem));
	margin: 0 auto;
}

.bar {
	border-bottom: 1px solid var(--line);
	background: rgba(255, 255, 255, 0.04);
	backdrop-filter: blur(14px);
}

.bar-inner,
.brand,
.hero-head,
.section-head,
.contact-head,
.footer {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	flex-wrap: wrap;
}

.bar-inner {
	padding: 0.8rem 0;
}

.group,
.nav-links,
.hero-metrics,
.actions {
	display: flex;
	gap: 0.75rem;
	flex-wrap: wrap;
}

.pill,
.nav a,
.disabled {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.55rem;
	padding: 0.8rem 1rem;
	border-radius: 999px;
	font-weight: 700;
}

.pill {
	padding: 0.55rem 0.9rem;
	font-size: 0.92rem;
	color: var(--muted);
	border: 1px solid var(--line);
	background: rgba(255, 255, 255, 0.08);
}

wa-button {
	display: inline-block;
}

.nav-wrap {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.8rem;
	flex-wrap: wrap;
	margin: 0.75rem auto 1.5rem;
	padding: 0.75rem;
	border-radius: 999px;
	border: 1px solid var(--line);
	background: var(--panel);
	box-shadow: var(--shadow);
}

/*
.nav a {
	color: var(--muted);
}
	*/

.nav a,
wa-button::part(base) {
	transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease;
	border-radius: 999px;
	font-weight: 700;
}

wa-button[variant="brand"]::part(base) {
	background: linear-gradient(135deg, var(--primary), var(--accent));
	border-color: transparent;
	color: #fff;
	box-shadow: 0 14px 30px rgba(15, 118, 110, 0.22);
}

wa-button[appearance="outlined"]::part(base),
wa-button.toggle::part(base) {
	background: var(--panel-strong);
	border-color: var(--line);
	color: var(--text);
}

wa-button:hover::part(base),
wa-button:focus-visible::part(base),
.nav a:hover,
.nav a:focus-visible {
	transform: translateY(-1px);
	outline: none;
}

.nav a:hover,
.nav a:focus-visible {
	color: var(--text);
	background: rgba(255, 255, 255, 0.08);
}

wa-button[appearance="outlined"]:hover::part(base),
wa-button[appearance="outlined"]:focus-visible::part(base),
wa-button.toggle:hover::part(base),
wa-button.toggle:focus-visible::part(base) {
	border-color: var(--primary);
}

wa-button[disabled]::part(base) {
	border: 1px dashed var(--line);
	background: transparent;
	color: var(--muted);
	box-shadow: none;
}

.disabled {
	border: 1px dashed var(--line);
	color: var(--muted);
	background: transparent;
	cursor: not-allowed;
}

.badge {
	display: inline-flex;
	align-items: center;
	gap: 0.45rem;
	padding: 0.38rem 0.72rem;
	border-radius: 999px;
	font-size: 0.82rem;
	font-weight: 800;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--accent);
	background: rgba(197, 90, 43, 0.12);
}

.brand {
	padding: 1.5rem 0 0.75rem;
}

.title,
.section-title,
.slide h3,
.contact-title {
	margin: 0;
	font-family: var(--display);
	line-height: 0.96;
	letter-spacing: -0.03em;
}

.title {
	font-size: clamp(2.25rem, 5vw, 4.8rem);
	margin-top: 0.9rem;
	max-width: 11ch;
}

.summary,
.section-head p,
.contact-head p,
.slide p {
	color: var(--muted);
	line-height: 1.72;
}

.subtitle {
	margin: 0.55rem 0 0;
	color: var(--muted);
	font-size: var(--wa-font-size-xl);
	font-weight: var(--wa-font-weight-semibold);
	line-height: var(--wa-line-height-normal);
}

.summary {
	max-width: 42rem;
	margin: 1rem 0 0;
}

.panel-shell,
.card-shell {
	min-width: 0;
}

.brand-copy {
	padding: 3.0rem 1.35rem;
	border-radius: 28px;
	background:
		linear-gradient(rgba(12, 18, 24, 0.55), rgba(12, 18, 24, 0.55)),
		/*url("/BGF/assets/images/bg/cover.jpg") center / cover no-repeat;*/
		url("/BGF/assets/images/bg/cover1.jpg") top / cover no-repeat;
	color: #fff;
}

.brand-copy .summary {
	color: rgba(255, 255, 255, 0.86);
}

.logo-box,
.metric,
wa-card.panel,
wa-card.card,
wa-card.contact-box,
wa-carousel {
	border: 1px solid var(--line);
	background: var(--panel);
	box-shadow: var(--shadow);
}

.logo-box {
	padding: 1.1rem 1.3rem;
	border-radius: 28px;
}

.logo-box img {
	width: min(100%, 360px);
	height: auto;
}

main {
	padding-bottom: 4rem;
}

section {
	padding: 1rem 0 2.5rem;
}

.hero-head {
	align-items: end;
	margin-bottom: 1.2rem;
}

.section-title {
	font-size: clamp(1.85rem, 4vw, 3rem);
	max-width: 15ch;
	margin-bottom: 0.2rem;
}

.hero-copy {
	max-width: 48rem;
}

.hero-metrics {
	margin-top: 1rem;
}

.metric {
	min-width: 11rem;
	padding: 1rem;
	border-radius: 22px;
}

.metric strong {
	display: block;
	margin-bottom: 0.2rem;
}

.metric span {
	color: var(--muted);
	font-size: 0.92rem;
}

wa-carousel {
	display: block;
	border-radius: 30px;
	overflow: hidden;
}

.slide {
	min-height: 27rem;
	padding: clamp(1.5rem, 4vw, 2.4rem);
	display: grid;
	grid-template-columns: minmax(0, 1.35fr) minmax(18rem, 0.9fr);
	gap: 1rem;
	background:
		linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent),
		linear-gradient(135deg, rgba(197, 90, 43, 0.12), rgba(15, 118, 110, 0.08));
}

.slide h3 {
	font-size: clamp(2rem, 5vw, 4rem);
	margin-top: 0.8rem;
	max-width: 10ch;
}

.slide-copy {
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	gap: 1rem;
}

wa-card.panel,
wa-card.card,
wa-card.contact-box {
	display: block;
	border-radius: 26px;
	position: relative;
	overflow: hidden;
	--spacing: 1.35rem;
}

wa-card.panel::before,
wa-card.card::before,
wa-card.contact-box::before {
	content: "";
	position: absolute;
	left: 0;
	top: 0;
	right: 0;
	height: 4px;
	background: linear-gradient(90deg, var(--primary), var(--accent));
}

wa-card.card-sylpets {
	background:
		linear-gradient(rgba(12, 18, 24, 0.62), rgba(12, 18, 24, 0.62)),
		url("/BGF/assets/images/bg/sylpets_cover_1.png") center / cover no-repeat;
	color: #fff;
}

wa-card.card-ashdroid {
	background:
		linear-gradient(rgba(12, 18, 24, 0.62), rgba(12, 18, 24, 0.62)),
		url("/BGF/assets/images/bg/ashdroid_cover_1.jpg") bottom / cover no-repeat;
	color: #fff;
}

wa-card.card-techdemo {
	background:
		linear-gradient(rgba(12, 18, 24, 0.62), rgba(12, 18, 24, 0.62)),
		url("/BGF/assets/images/bg/tech_demo_cover_1.jpg") bottom / cover no-repeat;
	color: #fff;
}

wa-card.card-sylpets p,
wa-card.card-sylpets .list,
wa-card.card-ashdroid p,
wa-card.card-ashdroid .list,
wa-card.card-techdemo p,
wa-card.card-techdemo .list {
	color: rgba(255, 255, 255, 0.88);
}


.panel h4,
.card h3 {
	margin: 0.9rem 0 0.55rem;
	font-size: 1.2rem;
}

.list {
	list-style: none;
	margin: 1rem 0 0;
	padding: 0;
	display: grid;
	gap: 0.72rem;
	color: var(--muted);
}

.list li {
	display: flex;
	gap: 0.65rem;
	align-items: start;
}

.section-head {
	align-items: end;
	margin-bottom: 1.2rem;
}

.grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 1rem;
}

.card-icon {
	display: inline-flex;
	width: 3rem;
	height: 3rem;
	align-items: center;
	justify-content: center;
	border-radius: 18px;
	background: rgba(15, 118, 110, 0.14);
	color: var(--primary);
	font-size: 1.1rem;
}

.topic-card .card-icon {
	/*width: clamp(4.5rem, 52%, 10rem);*/
	max-width: 100%;
	justify-self: start;
}

.project-meta {
	display: flex;
	gap: 0.6rem;
	flex-wrap: wrap;
	margin-bottom: 0.2rem;
}

.contact-box {
	--spacing: clamp(1.4rem, 4vw, 2.4rem);
	background:
		linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent),
		linear-gradient(135deg, rgba(15, 118, 110, 0.08), rgba(197, 90, 43, 0.1));
}

.topic-selector {
	margin: 0 0 1.5rem;
	padding: 0;
	border: 0;
}

.topic-selector legend {
	display: block;
	width: 100%;
	margin-bottom: 0;
	padding: 0 0 0.9rem;
	font-family: var(--display);
	font-size: 1.35rem;
	letter-spacing: -0.02em;
}

.topic-grid {
	margin-top: 0.2rem;
}

.topic-option {
	display: block;
	position: relative;
	cursor: pointer;
}

.topic-radio {
	position: absolute;
	width: 1px;
	height: 1px;
	margin: -1px;
	padding: 0;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

.topic-card {
	display: grid;
	align-items: start;
	gap: 1rem;
	min-height: 100%;
	padding: 1.35rem;
	border: 1px solid var(--topic-card-border);
	border-radius: 26px;
	background: var(--topic-card-bg);
	box-shadow: var(--topic-card-shadow);
	position: relative;
	overflow: hidden;
	color: var(--text);
	transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease, color 180ms ease;
}

.topic-card::before {
	content: "";
	position: absolute;
	left: 0;
	top: 0;
	right: 0;
	height: 4px;
	background: linear-gradient(90deg, var(--primary), var(--accent));
}

.topic-option:hover .topic-card {
	transform: translateY(-2px);
	border-color: var(--topic-card-border-hover);
	background: var(--topic-card-bg-hover);
	box-shadow: var(--topic-card-shadow-hover);
}

.topic-radio:focus-visible + .topic-card {
	outline: 3px solid var(--topic-card-focus-ring);
	outline-offset: 3px;
	border-color: var(--accent);
}

.topic-radio:checked + .topic-card {
	border-color: var(--topic-card-border-checked);
	background: var(--topic-card-bg-checked);
	box-shadow: var(--topic-card-shadow-checked), inset 0 0 0 1px var(--topic-card-selected-ring);
}

.topic-copy {
	display: grid;
	gap: 0.55rem;
	min-width: 0;
	padding-right: 0;
}

.topic-title {
	font-size: 1.2rem;
	font-weight: 700;
	color: var(--text);
}

.topic-description {
	color: var(--muted);
	line-height: 1.72;
}

.note {
	margin-top: 1rem;
	color: var(--muted);
	font-size: 0.92rem;
}

.contact-field,
.contact-message {
	display: block;
	width: 100%;
}

.contact-field::part(base),
.contact-message::part(base) {
	border-radius: 18px;
	background: var(--panel-strong);
	border-color: var(--line);
	box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
	transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.contact-field::part(input),
.contact-message::part(textarea) {
	color: var(--text);
}

.contact-field > [slot="start"] {
	color: var(--muted);
}

.contact-field:focus-within::part(base),
.contact-message:focus-within::part(base) {
	border-color: var(--primary);
	box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.16);
}

.contact-message {
	margin-top: 0.25rem;
}

.contact-message::part(textarea) {
	min-height: 10rem;
}

.contact-submit {
	margin-top: 1rem;
}

footer {
	border-top: 1px solid var(--line);
	padding: 1.4rem 0 2.2rem;
}

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

.footer strong {
	color: var(--text);
}

@media (max-width: 960px) {
	.slide {
		grid-template-columns: 1fr;
	}

	.grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 720px) {
	.container {
		width: min(100%, calc(100% - 1rem));
	}

	.nav-wrap {
		border-radius: 28px;
	}

	.logo-box {
		width: 100%;
	}

	.slide {
		min-height: auto;
	}

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



.brand-copy {
	flex: 1 1 0;
	min-width: 0;
}

.logo-box {
	flex: 0 0 auto;
}

@media (max-width: 720px) {

	.brand-copy,
	.logo-box {
		width: 100%;
	}
}