/* AeroTickets — components: buttons, header, footer, navigation. */

/* ====== Buttons ====== */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--space-2);
	padding: var(--space-3) var(--space-6);
	font-family: var(--font-display);
	font-weight: 700;
	font-size: var(--text-sm);
	letter-spacing: var(--tracking-wide);
	text-transform: uppercase;
	text-decoration: none;
	border: 2px solid transparent;
	border-radius: var(--radius-pill);
	cursor: pointer;
	transition: transform var(--dur-base) var(--ease), background var(--dur-base) var(--ease), color var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
	white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { box-shadow: var(--shadow-glow); }

.btn--primary {
	color: #fff;
	background: var(--brand-gradient);
	background-size: 180% 180%;
	background-position: 0% 0%;
}
.btn--primary:hover {
	background-position: 100% 100%;
	color: #fff;
	box-shadow: var(--shadow-md);
}

.btn--ghost {
	color: var(--ink);
	background: transparent;
	border-color: var(--border-strong);
}
.btn--ghost:hover {
	color: var(--brand-blue);
	border-color: var(--brand-blue);
	background: var(--canvas-soft);
}
.section--dark .btn--ghost {
	color: #fff;
	border-color: rgba(255,255,255,0.4);
}
.section--dark .btn--ghost:hover {
	background: rgba(255,255,255,0.08);
	color: #fff;
	border-color: #fff;
}

.btn--lg { padding: var(--space-4) var(--space-8); font-size: var(--text-md); }
.btn--block { display: flex; width: 100%; }

/* ====== Site header ====== */
.site-header {
	position: sticky;
	top: 0;
	z-index: var(--z-nav);
	background: rgba(255,255,255,0.92);
	backdrop-filter: saturate(180%) blur(14px);
	-webkit-backdrop-filter: saturate(180%) blur(14px);
	border-bottom: 1px solid var(--border);
	transition: background var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}
.site-header.is-scrolled { box-shadow: var(--shadow-sm); }

.site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-6);
	min-height: var(--header-h);
}

.site-logo { display: inline-flex; align-items: center; flex-shrink: 0; }
.site-logo__img { height: 44px; width: auto; }
@media (max-width: 768px) {
	.site-logo__img { height: 36px; }
}

/* Navigation */
.site-nav {
	display: flex;
	align-items: center;
	gap: var(--space-8);
}
.site-nav__list {
	display: flex;
	gap: var(--space-6);
	list-style: none;
	margin: 0;
	padding: 0;
}
.site-nav__list li { margin: 0; }
.site-nav__list a {
	font-family: var(--font-display);
	font-weight: 600;
	font-size: var(--text-sm);
	color: var(--ink);
	text-decoration: none;
	padding: var(--space-2) 0;
	position: relative;
	transition: color var(--dur-fast) var(--ease);
}
.site-nav__list a::after {
	content: "";
	position: absolute;
	left: 0; right: 0; bottom: 0;
	height: 2px;
	background: var(--brand-gradient);
	transform: scaleX(0);
	transform-origin: left center;
	transition: transform var(--dur-base) var(--ease);
}
.site-nav__list a:hover { color: var(--brand-blue); }
.site-nav__list a:hover::after { transform: scaleX(1); }

.site-nav__cta { flex-shrink: 0; }

/* Cart link (icon + badge) */
.site-cart-link {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	position: relative;
	width: 44px;
	height: 44px;
	border-radius: 50%;
	color: var(--ink);
	text-decoration: none;
	flex-shrink: 0;
	transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.site-cart-link:hover {
	background: var(--canvas-soft, rgba(20,39,91,0.06));
	color: var(--brand-blue);
}
.site-cart-link__icon { display: block; }
.site-cart-link__label { display: none; }
.site-cart-link__count {
	position: absolute;
	top: 2px;
	right: 2px;
	min-width: 18px;
	height: 18px;
	padding: 0 5px;
	border-radius: 10px;
	background: var(--brand-blue);
	color: #fff;
	font-family: var(--font-display);
	font-size: 11px;
	font-weight: 700;
	line-height: 18px;
	text-align: center;
	box-shadow: 0 0 0 2px #fff;
}

/* Nav toggle (mobile) */
.nav-toggle {
	display: none;
	background: none;
	border: 0;
	width: 44px;
	height: 44px;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	gap: 5px;
	padding: 0;
}
.nav-toggle__bar {
	display: block;
	width: 24px;
	height: 2px;
	background: var(--ink);
	border-radius: 2px;
	transition: transform var(--dur-base) var(--ease), opacity var(--dur-fast) var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 1023px) {
	.nav-toggle { display: flex; }
	.site-nav {
		position: absolute;
		top: 100%;
		left: 0; right: 0;
		flex-direction: column;
		gap: var(--space-6);
		padding: var(--space-6) var(--space-5) var(--space-8);
		background: #fff;
		border-bottom: 1px solid var(--border);
		box-shadow: var(--shadow-md);
		transform: translateY(-10px);
		opacity: 0;
		pointer-events: none;
		transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
	}
	.site-nav.is-open {
		opacity: 1;
		transform: translateY(0);
		pointer-events: auto;
	}
	.site-nav__list {
		flex-direction: column;
		gap: var(--space-2);
		width: 100%;
	}
	.site-nav__list a {
		display: block;
		padding: var(--space-3) 0;
		font-size: var(--text-md);
		border-bottom: 1px solid var(--border);
	}
	.site-nav__list a::after { display: none; }
	.site-nav__cta { width: 100%; }

	.site-cart-link {
		width: 100%;
		height: auto;
		padding: var(--space-3) 0;
		border-radius: 0;
		justify-content: flex-start;
		gap: var(--space-3);
		font-family: var(--font-display);
		font-weight: 600;
		font-size: var(--text-md);
		color: var(--ink);
		border-bottom: 1px solid var(--border);
	}
	.site-cart-link:hover { background: transparent; }
	.site-cart-link__label { display: inline; }
	.site-cart-link__count {
		position: static;
		margin-left: auto;
		box-shadow: none;
	}
}

/* ====== Site footer ====== */
.site-footer {
	background: var(--brand-navy);
	color: var(--ink-on-dark);
	padding-top: var(--space-20);
}
.site-footer .site-logo__img { height: 56px; filter: brightness(0) invert(1); }
.site-footer__grid {
	display: grid;
	grid-template-columns: 1.4fr 1fr 1fr 1fr;
	gap: var(--space-12);
	padding-bottom: var(--space-16);
}
.site-footer__tagline {
	color: var(--ink-on-dark-muted);
	margin-top: var(--space-4);
	max-width: 32ch;
}
.site-footer__heading {
	font-size: var(--text-sm);
	color: #fff;
	text-transform: uppercase;
	letter-spacing: var(--tracking-wider);
	margin-bottom: var(--space-4);
}
.site-footer__list {
	list-style: none;
	padding: 0;
	margin: 0;
}
.site-footer__list li { margin-bottom: var(--space-3); }
.site-footer__list a {
	color: var(--ink-on-dark-muted);
	font-size: var(--text-sm);
	transition: color var(--dur-fast) var(--ease);
}
.site-footer__list a:hover { color: #fff; }

.site-footer__social {
	display: flex;
	gap: var(--space-2);
	margin-top: var(--space-5);
}
.site-footer__social a {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 38px;
	height: 38px;
	border: 1px solid var(--border-on-dark);
	border-radius: 50%;
	color: #fff;
	font-size: var(--text-xs);
	font-weight: 700;
	transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.site-footer__social a:hover {
	background: var(--brand-gradient);
	border-color: transparent;
}

.site-footer__bottom {
	border-top: 1px solid var(--border-on-dark);
	padding-block: var(--space-6);
	font-size: var(--text-sm);
	color: var(--ink-on-dark-muted);
}
.site-footer__bottom-inner {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-4);
	justify-content: space-between;
	align-items: center;
}
.site-footer__bottom-inner p { margin: 0; }
.site-footer__payments strong { color: #fff; }

@media (max-width: 900px) {
	.site-footer__grid {
		grid-template-columns: 1fr 1fr;
	}
}
@media (max-width: 540px) {
	.site-footer__grid {
		grid-template-columns: 1fr;
		gap: var(--space-10);
	}
	.site-footer__bottom-inner { flex-direction: column; align-items: flex-start; }
}

/* ====== Page article ====== */
.page-article { padding-block: var(--space-12); }
.page-article__header { margin-bottom: var(--space-8); }
.page-article__title { font-size: clamp(2rem, 4vw, 3rem); }
.page-article__content > * { margin-bottom: var(--space-4); }