/* =============================================================
 * Top navigation — glass + sticky + mega-panel
 *
 * Variables locales clave:
 *   --trx-nav-h         altura de la barra (escritorio)
 *   --trx-nav-bg        fondo translúcido base
 *   --trx-nav-bg-stuck  fondo cuando hace scroll
 * ============================================================= */

:root {
	--trx-nav-h:         68px;
	--trx-nav-h-stuck:   58px;
	--trx-nav-bg:        oklch(14% 0.018 254 / 0.55);
	--trx-nav-bg-stuck:  oklch(14% 0.018 254 / 0.85);
	--trx-nav-border:    oklch(28% 0.024 254 / 0.4);
	--trx-nav-border-stuck: oklch(28% 0.024 254 / 0.7);
}

@media (max-width: 900px) {
	:root {
		--trx-nav-h:         60px;
		--trx-nav-h-stuck:   54px;
	}
}

/* BARRA -------------------------------------------------------- */
.trx-nav {
	position: fixed;
	inset: 0 0 auto 0;
	z-index: 100;
	background: var(--trx-nav-bg);
	backdrop-filter: blur(16px) saturate(140%);
	-webkit-backdrop-filter: blur(16px) saturate(140%);
	border-bottom: 1px solid var(--trx-nav-border);
	transition:
		background var(--trx-dur-base) var(--trx-ease-soft),
		border-color var(--trx-dur-base) var(--trx-ease-soft),
		box-shadow var(--trx-dur-base) var(--trx-ease-soft);
}

.trx-nav.is-scrolled {
	background: var(--trx-nav-bg-stuck);
	border-bottom-color: var(--trx-nav-border-stuck);
	box-shadow: 0 8px 24px oklch(0% 0 0 / 0.22);
}

.trx-nav.is-scrolled .trx-nav__inner {
	height: var(--trx-nav-h-stuck);
}

.trx-nav__inner {
	width: 100%;
	padding-inline: clamp(1rem, 2.5vw, 2.5rem);
	height: var(--trx-nav-h);
	display: grid;
	grid-template-columns: 1fr auto 1fr;
	align-items: center;
	gap: var(--trx-space-5);
	transition: height var(--trx-dur-base) var(--trx-ease-soft);
}

.trx-nav__brand   { justify-self: start;  }
.trx-nav__primary { justify-self: center; }
.trx-nav__actions { justify-self: end;    }

/* BRAND -------------------------------------------------------- */
.trx-nav__brand {
	display: inline-flex;
	align-items: baseline;
	gap: 0.06em;
	font-weight: 700;
	font-size: 1.25rem;
	letter-spacing: -0.025em;
	color: var(--trx-text);
	text-decoration: none;
	padding-block: 8px;
	border-radius: var(--trx-radius-sm);
}
.trx-nav__brand:hover { color: var(--trx-text); }

.trx-nav__brand-text { line-height: 1; }

.trx-nav__brand-dot {
	display: inline-block;
	width: 0.42em;
	height: 0.42em;
	border-radius: 50%;
	background: var(--trx-accent);
	transform: translateY(-0.04em);
	box-shadow: 0 0 12px oklch(72% 0.18 230 / 0.6);
}

/* PRIMARY (lista) --------------------------------------------- */
.trx-nav__primary {
	display: flex;
}

.trx-nav__list {
	list-style: none;
	padding: 0;
	margin: 0;
	display: flex;
	gap: 4px;
}

.trx-nav__item { position: relative; }
.trx-nav__item--has-panel { position: static; } /* el panel se alinea al inner, no al item */

.trx-nav__trigger {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	height: 36px;
	padding: 0 14px;
	font-family: inherit;
	font-size: 0.9375rem;
	font-weight: 500;
	color: var(--trx-text);
	border-radius: var(--trx-radius-sm);
	cursor: pointer;
	transition:
		background var(--trx-dur-fast) var(--trx-ease-soft),
		color var(--trx-dur-fast) var(--trx-ease-soft);
}
.trx-nav__trigger:hover,
.trx-nav__trigger[aria-expanded="true"] {
	background: oklch(28% 0.024 254 / 0.5);
}

.trx-nav__chev {
	width: 12px;
	height: 12px;
	color: var(--trx-text-muted);
	transition: transform var(--trx-dur-fast) var(--trx-ease-soft);
}
.trx-nav__trigger[aria-expanded="true"] .trx-nav__chev {
	transform: rotate(180deg);
	color: var(--trx-text);
}

/* MEGA-PANEL --------------------------------------------------- */
.trx-nav__panel {
	position: absolute;
	top: calc(var(--trx-nav-h) - 6px);
	left: 50%;
	width: min(840px, calc(100vw - 32px));
	transform: translateX(-50%) translateY(-6px);
	background: oklch(14% 0.018 254 / 0.94);
	backdrop-filter: blur(28px) saturate(150%);
	-webkit-backdrop-filter: blur(28px) saturate(150%);
	border: 1px solid var(--trx-border);
	border-radius: var(--trx-radius-lg);
	padding: var(--trx-space-5);
	box-shadow: var(--trx-shadow-lg);
	opacity: 0;
	pointer-events: none;
	visibility: hidden;
	transition:
		opacity var(--trx-dur-base) var(--trx-ease),
		transform var(--trx-dur-base) var(--trx-ease),
		visibility 0s linear var(--trx-dur-base);
}

.trx-nav.is-scrolled .trx-nav__panel {
	top: calc(var(--trx-nav-h-stuck) - 6px);
}

.trx-nav__item--open .trx-nav__panel {
	opacity: 1;
	transform: translateX(-50%) translateY(0);
	pointer-events: auto;
	visibility: visible;
	transition:
		opacity var(--trx-dur-base) var(--trx-ease),
		transform var(--trx-dur-base) var(--trx-ease);
}

.trx-nav__panel-grid {
	display: grid;
	grid-template-columns: 1fr 280px;
	gap: var(--trx-space-5);
}

@media (max-width: 1024px) {
	.trx-nav__panel-grid { grid-template-columns: 1fr; }
}

/* CARDS -------------------------------------------------------- */
.trx-nav__cards {
	list-style: none;
	padding: 0;
	margin: 0;
	display: grid;
	gap: 4px;
}

.trx-nav__card {
	display: grid;
	grid-template-columns: 44px 1fr;
	gap: var(--trx-space-3);
	align-items: start;
	padding: var(--trx-space-3);
	border-radius: var(--trx-radius-md);
	text-decoration: none;
	color: var(--trx-text);
	transition: background var(--trx-dur-fast) var(--trx-ease-soft);
}
.trx-nav__card:hover {
	background: oklch(22% 0.022 254 / 0.7);
	color: var(--trx-text);
}

.trx-nav__card-icon {
	display: grid;
	place-items: center;
	width: 44px;
	height: 44px;
	border-radius: var(--trx-radius-md);
	background: linear-gradient(135deg,
		oklch(72% 0.18 230 / 0.18),
		oklch(68% 0.20 285 / 0.18));
	color: var(--trx-accent);
	border: 1px solid oklch(72% 0.18 230 / 0.2);
}
.trx-nav__card-icon svg {
	width: 22px;
	height: 22px;
}

.trx-nav__card-body {
	display: block;
	min-width: 0;
}

.trx-nav__card-title {
	display: block;
	font-size: 0.9375rem;
	font-weight: 600;
	line-height: 1.2;
	margin-bottom: 4px;
}

.trx-nav__card-desc {
	display: block;
	font-size: 0.8125rem;
	line-height: 1.45;
	color: var(--trx-text-muted);
}

/* FEATURED ---------------------------------------------------- */
.trx-nav__featured {
	background: linear-gradient(135deg,
		oklch(72% 0.18 230 / 0.14),
		oklch(68% 0.20 285 / 0.16));
	border: 1px solid oklch(72% 0.18 230 / 0.28);
	border-radius: var(--trx-radius-md);
	padding: var(--trx-space-4);
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	gap: var(--trx-space-4);
}

.trx-nav__featured-eyebrow {
	margin: 0 0 6px;
	font-family: 'JetBrains Mono', ui-monospace, monospace;
	font-size: 0.6875rem;
	letter-spacing: 0.12em;
	color: var(--trx-accent);
}

.trx-nav__featured-title {
	margin: 0 0 8px;
	font-size: 1.0625rem;
	font-weight: 700;
	letter-spacing: -0.01em;
}

.trx-nav__featured-desc {
	margin: 0;
	font-size: 0.8125rem;
	line-height: 1.5;
	color: var(--trx-text-muted);
}

.trx-nav__featured-cta {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	align-self: flex-start;
	color: var(--trx-accent);
	text-decoration: none;
	font-size: 0.875rem;
	font-weight: 600;
	transition: gap var(--trx-dur-fast) var(--trx-ease-soft), color var(--trx-dur-fast) var(--trx-ease-soft);
}
.trx-nav__featured-cta:hover {
	gap: 10px;
	color: var(--trx-accent-2);
}

/* ACTIONS ------------------------------------------------------ */
.trx-nav__actions {
	display: flex;
	align-items: center;
	gap: var(--trx-space-3);
}

.trx-nav__cta {
	display: inline-flex;
	align-items: center;
	height: 36px;
	padding: 0 18px;
	background: var(--trx-accent);
	color: var(--trx-on-accent);
	border-radius: var(--trx-radius-pill);
	font-weight: 600;
	font-size: 0.875rem;
	text-decoration: none;
	transition:
		background var(--trx-dur-fast) var(--trx-ease-soft),
		transform var(--trx-dur-fast) var(--trx-ease-soft),
		box-shadow var(--trx-dur-fast) var(--trx-ease-soft);
	box-shadow: 0 4px 14px oklch(72% 0.18 230 / 0.25);
}
.trx-nav__cta:hover {
	background: var(--trx-accent-2);
	transform: translateY(-1px);
	box-shadow: 0 8px 22px oklch(72% 0.18 230 / 0.4);
	color: var(--trx-on-accent);
}

/* HAMBURGER --------------------------------------------------- */
.trx-nav__hamburger {
	display: none;
	width: 44px;
	height: 44px;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	gap: 5px;
	border-radius: var(--trx-radius-sm);
	cursor: pointer;
	justify-self: end;
}

.trx-nav__hamburger-bar {
	display: block;
	width: 22px;
	height: 2px;
	background: var(--trx-text);
	border-radius: 2px;
	transform-origin: center;
	transition:
		transform var(--trx-dur-base) var(--trx-ease-soft),
		opacity var(--trx-dur-fast) var(--trx-ease-soft);
}
.trx-nav__hamburger[aria-expanded="true"] .trx-nav__hamburger-bar:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}
.trx-nav__hamburger[aria-expanded="true"] .trx-nav__hamburger-bar:nth-child(2) {
	opacity: 0;
}
.trx-nav__hamburger[aria-expanded="true"] .trx-nav__hamburger-bar:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

/* DRAWER (móvil) ---------------------------------------------- */
.trx-nav__drawer {
	display: none;
	position: fixed;
	top: var(--trx-nav-h);
	inset-inline: 0;
	bottom: 0;
	background: oklch(14% 0.018 254 / 0.97);
	backdrop-filter: blur(24px);
	-webkit-backdrop-filter: blur(24px);
	padding: var(--trx-space-6) var(--trx-space-5);
	overflow-y: auto;
	transform: translateY(-12px);
	opacity: 0;
	pointer-events: none;
	visibility: hidden;
	transition:
		transform var(--trx-dur-base) var(--trx-ease),
		opacity var(--trx-dur-base) var(--trx-ease),
		visibility 0s linear var(--trx-dur-base);
}
.trx-nav__drawer.is-open {
	transform: translateY(0);
	opacity: 1;
	pointer-events: auto;
	visibility: visible;
	transition:
		transform var(--trx-dur-base) var(--trx-ease),
		opacity var(--trx-dur-base) var(--trx-ease);
}

.trx-nav__drawer-section {
	border-bottom: 1px solid var(--trx-border);
	padding: var(--trx-space-4) 0;
}
.trx-nav__drawer-section summary {
	display: flex;
	align-items: center;
	justify-content: space-between;
	font-weight: 600;
	font-size: 1.0625rem;
	cursor: pointer;
	list-style: none;
	padding-block: 8px;
}
.trx-nav__drawer-section summary::-webkit-details-marker { display: none; }
.trx-nav__drawer-section[open] summary svg { transform: rotate(180deg); }
.trx-nav__drawer-section summary svg {
	transition: transform var(--trx-dur-fast) var(--trx-ease-soft);
	color: var(--trx-text-muted);
}
.trx-nav__drawer-section ul {
	list-style: none;
	padding: var(--trx-space-3) 0 0;
	margin: 0;
}
.trx-nav__drawer-section li { padding: 4px 0; }
.trx-nav__drawer-section a {
	display: block;
	padding: 12px 0;
	color: var(--trx-text-muted);
	text-decoration: none;
	font-size: 0.9375rem;
}
.trx-nav__drawer-section a:hover { color: var(--trx-text); }

.trx-nav__drawer-cta {
	display: inline-flex;
	align-items: center;
	margin-top: var(--trx-space-6);
	padding: 14px 24px;
	background: var(--trx-accent);
	color: var(--trx-on-accent);
	border-radius: var(--trx-radius-pill);
	font-weight: 600;
	text-decoration: none;
}

/* RESPONSIVE -------------------------------------------------- */
@media (max-width: 900px) {
	.trx-nav__inner {
		grid-template-columns: auto 1fr;
		padding-inline: clamp(0.75rem, 4vw, 1.25rem);
	}
	.trx-nav__primary,
	.trx-nav__actions { display: none; }
	.trx-nav__hamburger { display: inline-flex; }
	.trx-nav__drawer { display: block; }

	.trx-nav__brand {
		font-size: 1.125rem;
	}
	.trx-nav__brand-dot {
		box-shadow: 0 0 8px oklch(72% 0.18 230 / 0.6);
	}

	/* Drawer items con más respiración y touch targets cómodos */
	.trx-nav__drawer {
		padding: var(--trx-space-5) var(--trx-space-5) var(--trx-space-7);
	}
	.trx-nav__drawer-section summary {
		font-size: 1.125rem;
		padding-block: 14px;
	}
	.trx-nav__drawer-section a {
		padding: 14px 0;
		font-size: 1rem;
	}
	.trx-nav__drawer-cta {
		display: flex;
		justify-content: center;
		width: 100%;
		padding: 16px 24px;
		font-size: 1rem;
		box-shadow: 0 4px 20px oklch(72% 0.18 230 / 0.3);
	}
}

/* Body cuando el drawer está abierto (no scroll) --------------- */
html.trx-no-scroll,
html.trx-no-scroll body {
	overflow: hidden;
}

/* REDUCED MOTION ---------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
	.trx-nav,
	.trx-nav__inner,
	.trx-nav__trigger,
	.trx-nav__chev,
	.trx-nav__panel,
	.trx-nav__card,
	.trx-nav__cta,
	.trx-nav__featured-cta,
	.trx-nav__hamburger-bar,
	.trx-nav__drawer {
		transition: none !important;
	}
}