/* ==========================================================================
   Kawasaki Brasil — Layout (containers, grid, header, footer) — tema dark
   ========================================================================== */

.container {
	width: 100%;
	max-width: var(--container-max);
	margin-inline: auto;
	padding-inline: var(--container-pad);
}

.container--wide {
	max-width: var(--container-wide);
}

.section {
	padding-block: clamp(var(--space-16), 8vw, var(--space-24));
	position: relative;
}

.section--tight {
	padding-block: clamp(var(--space-10), 5vw, var(--space-16));
}

.section--soft {
	background: var(--color-background-soft);
}

.section--elevated {
	background:
		linear-gradient(180deg, var(--color-graphite-950), var(--color-black-soft));
	border-block: 1px solid var(--color-border-dark);
}

.section__head {
	max-width: 46rem;
	margin-inline: auto;
	text-align: center;
	margin-bottom: clamp(var(--space-8), 4vw, var(--space-12));
}

.section__head .lead {
	margin-top: var(--space-4);
}

/* Grid utilitário fluido */
.grid {
	display: grid;
	gap: var(--space-6);
}

.grid--auto {
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
}

.grid--2,
.grid--3,
.grid--4 {
	grid-template-columns: 1fr;
}

@media (min-width: 40rem) {
	.grid--2,
	.grid--3,
	.grid--4 {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (min-width: 64rem) {
	.grid--3 {
		grid-template-columns: repeat(3, 1fr);
	}
	.grid--4 {
		grid-template-columns: repeat(4, 1fr);
	}
}

/* -------------------------------- Cabeçalho ------------------------------- */
.site-header {
	position: sticky;
	top: 0;
	z-index: var(--z-header);
	background: color-mix(in srgb, var(--color-black) 82%, transparent);
	backdrop-filter: saturate(1.2) blur(14px);
	-webkit-backdrop-filter: saturate(1.2) blur(14px);
	border-bottom: 1px solid var(--color-border-dark);
	transition: background var(--transition-base), border-color var(--transition-base), backdrop-filter var(--transition-base);
}

/* Variante sobreposta (Home): transparente sobre o hero, com fundo ao rolar. */
.site-header--overlay {
	position: fixed;
	left: 0;
	right: 0;
	background: transparent;
	backdrop-filter: none;
	-webkit-backdrop-filter: none;
	border-bottom-color: transparent;
}

/* Estado "rolado": ganha fundo, blur e borda (aplicado via JS). */
.site-header--overlay.is-scrolled {
	background: color-mix(in srgb, var(--color-black) 88%, transparent);
	backdrop-filter: saturate(1.2) blur(14px);
	-webkit-backdrop-filter: saturate(1.2) blur(14px);
	border-bottom-color: var(--color-border-dark);
	box-shadow: var(--shadow-md);
}

.site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-4);
	min-height: var(--header-height);
}

.site-branding {
	display: flex;
	align-items: center;
}

/* --------------------------------- Rodapé -------------------------------- */
.site-footer {
	background:
		linear-gradient(180deg, var(--color-black-soft), var(--color-black));
	color: var(--color-text-muted);
	padding-block: clamp(var(--space-16), 6vw, var(--space-20)) var(--space-8);
	margin-top: var(--space-24);
	border-top: 1px solid var(--color-border-dark);
}

.site-footer a {
	color: var(--color-gray-200);
	text-decoration: none;
}

.site-footer a:hover {
	color: var(--color-primary);
}

.footer-grid {
	display: grid;
	gap: var(--space-10);
	grid-template-columns: 1fr;
}

@media (min-width: 40rem) {
	.footer-grid {
		grid-template-columns: repeat(2, 1fr);
		gap: var(--space-8);
	}
}

@media (min-width: 64rem) {
	.footer-grid {
		grid-template-columns: 1.8fr repeat(4, 1fr);
	}
}

.footer-col__title {
	font-family: var(--font-heading);
	font-size: var(--fs-xs);
	font-weight: var(--fw-bold);
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: var(--color-gray-400);
	margin-bottom: var(--space-4);
}

.footer-col ul {
	list-style: none;
	padding: 0;
	margin: 0;
	display: grid;
	gap: var(--space-3);
}

.footer-bottom {
	margin-top: clamp(var(--space-10), 5vw, var(--space-16));
	padding-top: var(--space-6);
	border-top: 1px solid var(--color-border);
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-4);
	justify-content: space-between;
	align-items: center;
	font-size: var(--fs-sm);
	color: var(--color-gray-400);
}

.footer-bottom a {
	color: var(--color-gray-300);
}