.ba-hero {
	display: grid;
	min-height: auto;
	align-items: center;
	padding-block: clamp(3rem, 7vw, 6rem);
	border-bottom: 1px solid var(--ba-border);
}

.ba-hero__inner {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: clamp(2rem, 6vw, 5rem);
	align-items: center;
}

.ba-hero__content {
	container-type: inline-size;
}

.ba-hero h1 {
	max-width: none;
	margin-bottom: var(--ba-space-md);
	font-size: clamp(1.8rem, 15.5cqi, 7.4rem);
	line-height: 1.02;
}

.ba-hero__subtitle {
	margin-bottom: var(--ba-space-md);
	color: var(--ba-text-primary);
	font-family: var(--ba-font-mono);
	font-size: clamp(0.82rem, 1.3vw, 1rem);
	letter-spacing: 0.12em;
	text-transform: uppercase;
}

.ba-hero__meta {
	margin: var(--ba-space-xl) 0 0;
	color: var(--ba-text-muted);
	font-family: var(--ba-font-mono);
	font-size: 0.75rem;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

.ba-hero-visual {
	position: relative;
	min-height: clamp(17rem, 65vw, 22rem);
	overflow: clip;
	border: 1px solid var(--ba-border);
	border-radius: var(--ba-radius-card);
	background:
		radial-gradient(ellipse at 50% 50%, rgba(27, 48, 37, 0.16), transparent 65%),
		var(--ba-visual-bg);
	box-shadow: var(--ba-shadow-soft);
}

.ba-hero-visual::before {
	position: absolute;
	inset: 0;
	background-image:
		linear-gradient(var(--ba-border) 1px, transparent 1px),
		linear-gradient(90deg, var(--ba-border) 1px, transparent 1px);
	background-size: 44px 44px;
	content: "";
	opacity: 0.24;
}

.ba-hero-visual__label {
	position: relative;
	z-index: 1;
	pointer-events: none;
	margin: var(--ba-space-lg) var(--ba-space-lg) 0;
	color: var(--ba-accent);
	font-family: var(--ba-font-mono);
	font-size: 0.72rem;
	letter-spacing: 0.12em;
}

.ba-hero-visual__network {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	contain: strict;
}

.ba-slider {
	display: grid;
	gap: var(--ba-space-lg);
}

.ba-slider__viewport {
	overflow: hidden;
}

.ba-slider__track {
	display: flex;
	gap: var(--ba-space-lg);
	overflow-x: auto;
	scroll-behavior: smooth;
	scroll-snap-type: x mandatory;
	scrollbar-width: none;
}

.ba-slider__track::-webkit-scrollbar {
	display: none;
}

.ba-slider__slide {
	flex: 0 0 100%;
	min-width: 0;
	scroll-snap-align: start;
}

.ba-slider__controls {
	display: grid;
	grid-template-columns: 44px minmax(0, 1fr) 44px;
	gap: var(--ba-space-sm);
	align-items: center;
}

.ba-icon-button,
.ba-slider__dot {
	display: inline-grid;
	width: 2.75rem;
	height: 2.75rem;
	flex: 0 0 auto;
	place-items: center;
	border: 1px solid var(--ba-border);
	border-radius: var(--ba-radius-control);
	background: var(--ba-bg-card);
	color: var(--ba-text-primary);
	cursor: pointer;
	font-family: var(--ba-font-mono);
}

.ba-icon-button:hover,
.ba-slider__dot:hover,
.ba-slider__dot.is-active {
	border-color: var(--ba-accent);
	color: var(--ba-accent);
}

.ba-slider__dots {
	display: flex;
	gap: 0;
	flex-wrap: wrap;
	justify-content: center;
}

.ba-slider__dot {
	position: relative;
	width: 2.75rem;
	height: 2.75rem;
	padding: 0;
	border: 0;
	background: transparent;
	color: transparent;
}
.ba-slider__dot::after { content: ""; width: 0.5rem; height: 0.5rem; border: 1px solid var(--ba-text-muted); border-radius: 50%; }
.ba-slider__dot.is-active::after { background: var(--ba-accent); border-color: var(--ba-accent); }
.ba-slider__dot:hover::after { border-color: var(--ba-accent); }

.ba-section--topics,
.ba-section--about-preview {
	border-block: 1px solid var(--ba-border);
	background: var(--ba-bg-secondary);
}

.ba-section--deep-dive {
	background:
		linear-gradient(180deg, transparent, var(--ba-bg-cyan-soft), transparent),
		var(--ba-bg-primary);
}

@media (min-width: 40rem) {
	.ba-slider__slide { flex-basis: 92%; }
}

@media (min-width: 64rem) {
	.ba-hero { min-height: clamp(34rem, 72vh, 48rem); }
	.ba-hero__inner { grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr); }
	.ba-hero-visual { min-height: 28rem; }
	.ba-slider__slide { flex-basis: min(88%, 980px); }
	.ba-slider__controls { display: flex; justify-content: flex-end; }
}

@media (max-width: 29.99rem) {
	.ba-slider__controls { row-gap: 0; }
	.ba-slider__dots { grid-row: 2; grid-column: 1 / -1; }
	.ba-slider__controls > .ba-icon-button { grid-row: 1; }
	.ba-slider__controls > .ba-icon-button:last-child { grid-column: 3; }
}