/* Componentes globales: botones, header y footer. */

/* ---------- Botones ---------- */

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 10px 20px;
	border: 1px solid transparent;
	border-radius: var(--radius-sm);
	font-family: var(--font-body);
	font-size: var(--text-label-md);
	font-weight: 500;
	line-height: var(--leading-label);
	letter-spacing: var(--tracking-label-md);
	text-align: center;
	white-space: nowrap;
	cursor: pointer;
	transition: background-color var(--transition), border-color var(--transition), color var(--transition);
}

.btn--primary {
	background: var(--color-cta-bg);
	color: var(--color-text-inverse);
}

.btn--primary:hover,
.btn--primary:focus {
	background: var(--color-cta-bg-hover);
	color: var(--color-text-inverse);
}

.btn--campus {
	background: var(--color-campus-bg);
	color: var(--color-text-inverse);
}

.btn--campus:hover,
.btn--campus:focus {
	background: var(--color-campus-bg-hover);
	color: var(--color-text-inverse);
}

.btn--outline {
	border-color: var(--color-border-strong);
	background: transparent;
	color: var(--color-text-primary);
}

.btn--outline:hover,
.btn--outline:focus {
	border-color: var(--color-cta-bg);
	color: var(--color-text-primary);
}

.btn--lg {
	padding: 14px 24px;
}

/* ---------- Header ---------- */

.site-header {
	position: relative;
	z-index: 100;
	border-bottom: 1px solid rgba(75, 85, 104, 0.25);
	background: var(--color-bg-page);
}

.site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-6);
	max-width: var(--container);
	min-height: calc(var(--header-h) - 1px);
	margin-inline: auto;
	padding: 0 var(--gutter);
}

.site-header__logo {
	flex: none;
}

.site-header__logo img {
	width: 152px;
	height: auto;
}

.site-header__menu {
	display: flex;
	flex: 1;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-6);
}

.site-nav {
	margin-inline: auto;
}

.site-nav__list {
	display: flex;
	align-items: center;
	gap: var(--space-8);
}

.site-nav__list a {
	display: block;
	padding-block: 6px;
	color: var(--color-text-secondary);
	font-size: var(--text-body-sm);
	line-height: var(--leading-body-sm);
	white-space: nowrap;
}

.site-nav__list a:hover,
.site-nav__list a:focus,
.site-nav__list .current-menu-item > a,
.site-nav__list .current_page_parent > a {
	color: var(--color-text-heading);
}

.site-header__cta {
	display: flex;
	flex: none;
	align-items: center;
	gap: var(--space-3);
}

.site-header__toggle {
	display: none;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 44px;
	margin-right: -10px;
	padding: 0;
	border: 0;
	border-radius: var(--radius-sm);
	background: transparent;
	color: var(--color-text-heading);
	cursor: pointer;
}

.site-header__toggle:hover,
.site-header__toggle:focus {
	background: transparent;
	color: var(--color-text-heading);
}

.site-header__toggle-bars,
.site-header__toggle-bars::before,
.site-header__toggle-bars::after {
	display: block;
	width: 24px;
	height: 2px;
	border-radius: 2px;
	background: currentColor;
	transition: transform var(--transition), background-color var(--transition);
}

.site-header__toggle-bars {
	position: relative;
}

.site-header__toggle-bars::before,
.site-header__toggle-bars::after {
	content: "";
	position: absolute;
	left: 0;
}

.site-header__toggle-bars::before {
	top: -7px;
}

.site-header__toggle-bars::after {
	top: 7px;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bars {
	background: transparent;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bars::before {
	transform: translateY(7px) rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bars::after {
	transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 1320px) {
	.site-nav__list {
		gap: var(--space-5);
	}
}

/* Menú colapsado */
@media (max-width: 1180px) {
	.site-header__toggle {
		display: inline-flex;
	}

	.site-header__menu {
		position: absolute;
		top: 100%;
		right: 0;
		left: 0;
		display: none;
		flex-direction: column;
		align-items: stretch;
		gap: var(--space-6);
		max-height: calc(100vh - var(--header-h));
		padding: var(--space-4) var(--gutter) var(--space-8);
		overflow-y: auto;
		border-bottom: 1px solid rgba(75, 85, 104, 0.25);
		background: var(--color-bg-page);
		box-shadow: 0 16px 32px rgba(12, 30, 61, 0.08);
	}

	.site-header__menu.is-open {
		display: flex;
	}

	.site-nav {
		margin: 0;
	}

	.site-nav__list {
		flex-direction: column;
		align-items: stretch;
		gap: 0;
	}

	.site-nav__list a {
		padding-block: 14px;
		border-bottom: 1px solid var(--color-border-default);
		font-size: var(--text-body-md);
		white-space: normal;
	}

	.site-header__cta {
		flex-direction: column;
		align-items: stretch;
	}

	.site-header__cta .btn {
		padding-block: 14px;
	}
}

@media (max-width: 480px) {
	.site-header__inner {
		min-height: 68px;
	}

	.site-header__logo img {
		width: 132px;
	}
}

/* ---------- Footer ---------- */

.site-footer {
	background: var(--color-bg-dark);
	color: var(--color-text-inverse);
}

.site-footer__inner {
	display: flex;
	flex-direction: column;
	gap: var(--space-8);
	max-width: var(--container);
	margin-inline: auto;
	padding: var(--space-16) var(--gutter) var(--space-8);
}

.site-footer__columns {
	display: grid;
	grid-template-columns: 320px repeat(4, minmax(0, 200px));
	gap: var(--space-12);
}

.site-footer__brand {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: var(--space-3);
}

.site-footer__brand img {
	width: 152px;
	height: auto;
}

.site-footer__brand p {
	max-width: 280px;
	opacity: 0.6;
}

.site-footer__col {
	display: flex;
	flex-direction: column;
	gap: var(--space-3);
}

.site-footer__title {
	font-size: var(--text-label-md);
	font-weight: 500;
	line-height: var(--leading-label);
	letter-spacing: var(--tracking-label-md);
}

.site-footer__col ul {
	display: flex;
	flex-direction: column;
	gap: var(--space-3);
}

.site-footer__col li a,
.site-footer__col li span {
	opacity: 0.6;
}

@media (min-width: 1181px) {
	.site-footer__col li {
		white-space: nowrap;
	}
}

.site-footer a:hover,
.site-footer a:focus {
	color: var(--color-text-inverse);
	opacity: 1;
}

.site-footer__col li a:hover,
.site-footer__legal a:hover {
	text-decoration: underline;
	text-underline-offset: 3px;
}

.site-footer__legal {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-3) var(--space-6);
	padding-top: var(--space-8);
	border-top: 1px solid rgba(238, 241, 245, 0.15);
}

.site-footer__legal p,
.site-footer__legal li a,
.site-footer__legal li span {
	opacity: 0.5;
}

.site-footer__legal ul {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-2) var(--space-6);
}

@media (max-width: 1180px) {
	.site-footer__columns {
		grid-template-columns: repeat(4, minmax(0, 1fr));
		gap: var(--space-10) var(--space-8);
	}

	.site-footer__brand {
		grid-column: 1 / -1;
	}
}

@media (max-width: 720px) {
	.site-footer__inner {
		padding-top: var(--space-12);
	}

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

	.site-footer__legal {
		flex-direction: column;
		align-items: flex-start;
	}
}

@media (max-width: 400px) {
	.site-footer__columns {
		grid-template-columns: 1fr;
	}
}

/* ---------- Interacciones: botones y navegación ---------- */

.btn {
	transition: background-color var(--transition), border-color var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn:hover {
	transform: translateY(-2px);
	box-shadow: 0 8px 18px rgba(12, 30, 61, 0.16);
}

.btn:active {
	transform: translateY(0);
	box-shadow: none;
}

.btn--campus:hover {
	box-shadow: 0 8px 18px rgba(82, 153, 249, 0.35);
}

.btn--outline:hover {
	background: var(--color-bg-section-alt);
	box-shadow: none;
}

.site-header__logo img {
	transition: transform var(--transition);
}

.site-header__logo:hover img {
	transform: scale(1.03);
}

/* Subrayado que crece desde la izquierda. */
@media (min-width: 1181px) {
	.site-nav__list a {
		position: relative;
	}

	.site-nav__list a::after {
		content: "";
		position: absolute;
		right: 0;
		bottom: 0;
		left: 0;
		height: 2px;
		border-radius: 2px;
		background: var(--color-text-accent);
		transform: scaleX(0);
		transform-origin: left;
		transition: transform 0.25s ease;
	}

	.site-nav__list a:hover::after,
	.site-nav__list a:focus-visible::after,
	.site-nav__list .current-menu-item > a::after,
	.site-nav__list .current_page_parent > a::after {
		transform: scaleX(1);
	}
}

.site-footer__col li a {
	display: inline-block;
	transition: opacity var(--transition), transform var(--transition);
}

.site-footer__col li a:hover {
	transform: translateX(3px);
}

/* Item de la pagina actual (celeste en el diseno). */
.site-nav__list .current-menu-item > a,
.site-nav__list .current_page_parent > a {
	color: var(--color-text-accent);
}