/* ==========================================================================
   STT Mega Menu
   - Paneles en position:absolute => no provocan saltos de maquetación (CLS=0).
   - Se muestran con :hover (ratón), :focus-within (teclado) y .is-open (JS/táctil).
   - Sin JS, hover y focus siguen funcionando y todos los enlaces son reales.
   ========================================================================== */

.stt-mega-nav,
.stt-mega-nav * { box-sizing: border-box; }

.stt-mega-nav {
	/* Variables de tema: ajústalas a tu marca */
	--stt-bg: #ffffff;
	--stt-text: #14181f;
	--stt-muted: #5b6470;
	--stt-accent: #2271b1;
	--stt-border: #e6e8eb;
	--stt-shadow: 0 14px 34px rgba(15, 23, 42, .14);
	--stt-radius: 12px;
	--stt-gap: 28px;

	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 2px 20px;
	position: relative;
}

/* Ítems de la barra superior */
.stt-top-item { position: static; }                 /* paneles anclados al nav */
.stt-mega-nav > .stt-has-dropdown { position: relative; } /* dropdowns junto al ítem */

.stt-top-link {
	display: inline-flex;
	align-items: center;
	padding: 12px 6px;
	color: var(--stt-text);
	text-decoration: none;
	font-weight: 500;
	line-height: 1.2;
}
.stt-top-link:hover,
.stt-top-link:focus-visible { color: var(--stt-accent); }

.stt-toggle {
	background: none;
	border: 0;
	margin: 0;
	padding: 8px;
	cursor: pointer;
	color: inherit;
	display: inline-flex;
	align-items: center;
}
.stt-arrow {
	display: block;
	width: 8px;
	height: 8px;
	border-right: 2px solid currentColor;
	border-bottom: 2px solid currentColor;
	transform: rotate(45deg);
	transition: transform .15s ease;
}
.stt-top-item.is-open .stt-arrow { transform: rotate(-135deg); }

/* Paneles ocultos por defecto */
.stt-mega-panel,
.stt-submenu {
	position: absolute;
	left: 0;
	top: 100%;
	z-index: 999;
	background: var(--stt-bg);
	border: 1px solid var(--stt-border);
	border-radius: var(--stt-radius);
	box-shadow: var(--stt-shadow);
	opacity: 0;
	visibility: hidden;
	transform: translateY(6px);
	transition: opacity .15s ease, transform .15s ease, visibility .15s;
}

.stt-mega-panel { min-width: 340px; padding: 24px; }
.stt-mega-panel--full { left: 0; right: 0; width: 100%; }

.stt-submenu { min-width: 220px; padding: 8px; list-style: none; margin: 0; }
.stt-submenu li { margin: 0; }
.stt-submenu a {
	display: block;
	padding: 9px 12px;
	color: var(--stt-text);
	text-decoration: none;
	border-radius: 8px;
}
.stt-submenu a:hover { background: #f3f4f6; color: var(--stt-accent); }

/* Mostrar */
.stt-top-item:hover > .stt-mega-panel,
.stt-top-item:focus-within > .stt-mega-panel,
.stt-top-item.is-open > .stt-mega-panel,
.stt-top-item:hover > .stt-submenu,
.stt-top-item:focus-within > .stt-submenu,
.stt-top-item.is-open > .stt-submenu {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

/* Rejilla de columnas */
.stt-mega-inner {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
	gap: var(--stt-gap);
}

.stt-mega-col { min-width: 0; }
.stt-col-title {
	display: block;
	font-weight: 600;
	color: var(--stt-text);
	text-decoration: none;
	margin-bottom: 10px;
	padding-bottom: 8px;
	border-bottom: 1px solid var(--stt-border);
}
a.stt-col-title:hover { color: var(--stt-accent); }

.stt-mega-links { list-style: none; margin: 0; padding: 0; }
.stt-mega-link-item { margin: 0; }
.stt-mega-links a {
	display: block;
	padding: 6px 0;
	color: var(--stt-muted);
	text-decoration: none;
	line-height: 1.45;
}
.stt-mega-links a:hover { color: var(--stt-accent); }

/* --------------------------- Móvil --------------------------- */
@media (max-width: 1024px) {
	.stt-mega-nav {
		flex-direction: column;
		align-items: stretch;
		gap: 0;
	}
	.stt-top-item {
		position: static;
		display: flex;
		flex-wrap: wrap;
		align-items: center;
		justify-content: space-between;
		border-bottom: 1px solid var(--stt-border);
	}
	.stt-top-link { flex: 1; padding: 14px 4px; }
	.stt-toggle { padding: 14px; }

	/* En táctil solo se abre con el botón, nunca por hover/focus */
	.stt-mega-panel,
	.stt-submenu {
		position: static;
		width: 100%;
		border: 0;
		border-radius: 0;
		box-shadow: none;
		padding: 0 0 14px;
		transform: none;
		opacity: 1;
		visibility: visible;
		display: none;
	}
	.stt-top-item:hover > .stt-mega-panel,
	.stt-top-item:focus-within > .stt-mega-panel,
	.stt-top-item:hover > .stt-submenu,
	.stt-top-item:focus-within > .stt-submenu { display: none; }

	.stt-top-item.is-open > .stt-mega-panel,
	.stt-top-item.is-open > .stt-submenu { display: block; }

	.stt-mega-inner { grid-template-columns: 1fr; gap: 16px; }
}