/* =================================================================
   QuickStock — main.css
   Mobile-first, flex-based, sin frameworks, sin animaciones JS.
   Las variables de color se inyectan desde inc/customizer.php en
   :root, así el theming es totalmente desde DB.
   ================================================================= */

/* --------------------------------------------------------------- *
 *  RESET MÍNIMO + DEFAULTS
 *  Razones: no cargamos Normalize/Reset.css completo porque la
 *  mayoría de sus reglas no aplican en navegadores modernos. Solo
 *  igualamos lo necesario.
 * --------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
	-webkit-text-size-adjust: 100%;
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	font-size: 16px;
	line-height: 1.55;
	color: var(--qs-text);
	background: var(--qs-bg);
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
}

img, svg, video {
	max-width: 100%;
	height: auto;
	display: block;
}

a {
	color: var(--qs-primary);
	text-decoration: none;
}
a:hover, a:focus-visible { text-decoration: underline; }

h1, h2, h3, h4 {
	margin: 0 0 .6em;
	line-height: 1.15;
	color: var(--qs-dark);
	font-weight: 700;
	letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1em; }

/* Skip link accesible. */
.qs-skip {
	position: absolute;
	left: -9999px;
	top: 0;
	background: var(--qs-primary);
	color: #fff;
	padding: .5rem 1rem;
	z-index: 9999;
}
.qs-skip:focus { left: 0; }

/* --------------------------------------------------------------- *
 *  HEADER
 *  display:flex en una sola fila. En móvil se transforma en
 *  layout vertical con menú colapsable.
 * --------------------------------------------------------------- */
.qs-header {
	position: sticky;
	top: 0;
	z-index: 100;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	padding: .8rem 1.2rem;
	background: var(--qs-bg);
	border-bottom: 1px solid color-mix(in srgb, var(--qs-text) 8%, transparent);
	backdrop-filter: saturate(180%) blur(8px);
}

.qs-logo img { height: 40px; width: auto; }

.qs-nav {
	display: flex;
	align-items: center;
	gap: 1rem;
}

.qs-nav-toggle {
	display: none; /* Solo se muestra en mobile. */
	flex-direction: column;
	justify-content: space-between;
	width: 28px;
	height: 22px;
	background: none;
	border: 0;
	cursor: pointer;
	padding: 0;
}
.qs-nav-toggle span {
	display: block;
	height: 2px;
	background: var(--qs-text);
	border-radius: 2px;
	transition: transform .2s ease, opacity .2s ease;
}

.qs-menu {
	display: flex;
	gap: 1.4rem;
	margin: 0;
	padding: 0;
	list-style: none;
}
.qs-menu a {
	color: var(--qs-text);
	font-weight: 500;
	padding: .4rem 0;
}
.qs-menu a:hover, .qs-menu a:focus-visible {
	color: var(--qs-primary);
	text-decoration: none;
}

/* Submenú (mega menú). */
.qs-menu .sub-menu {
	display: none;
	position: absolute;
	background: var(--qs-bg);
	border: 1px solid color-mix(in srgb, var(--qs-text) 10%, transparent);
	border-radius: 12px;
	padding: 1rem;
	min-width: 240px;
	flex-direction: column;
	gap: .4rem;
	list-style: none;
	margin: 0;
}
.qs-menu li { position: relative; }
.qs-menu li:hover > .sub-menu,
.qs-menu li:focus-within > .sub-menu { display: flex; }

/* --------------------------------------------------------------- *
 *  CTAs (botones)
 * --------------------------------------------------------------- */
.qs-cta {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: .7rem 1.3rem;
	border-radius: 999px;
	font-weight: 600;
	font-size: .95rem;
	border: 2px solid transparent;
	transition: transform .15s ease, background .15s ease, color .15s ease;
	white-space: nowrap;
	cursor: pointer;
}
.qs-cta:hover { transform: translateY(-1px); text-decoration: none; }

.qs-cta-primary {
	background: var(--qs-primary);
	color: #fff;
}
.qs-cta-primary:hover {
	background: color-mix(in srgb, var(--qs-primary) 85%, black);
	color: #fff;
}

.qs-cta-ghost {
	background: transparent;
	color: var(--qs-primary);
	border-color: var(--qs-primary);
}
.qs-cta-ghost:hover {
	background: var(--qs-primary);
	color: #fff;
}

/* --------------------------------------------------------------- *
 *  HERO
 *  Flex column en móvil, row en desktop.
 * --------------------------------------------------------------- */
.qs-hero {
	display: flex;
	flex-direction: column;
	gap: 2rem;
	padding: 3rem 1.2rem;
	max-width: 1280px;
	margin: 0 auto;
	align-items: center;
}
.qs-hero-text { text-align: center; max-width: 720px; }
.qs-hero-sub {
	font-size: 1.15rem;
	color: var(--qs-muted);
	margin-bottom: 1.5rem;
}
.qs-hero-ctas {
	display: flex;
	gap: .8rem;
	justify-content: center;
	flex-wrap: wrap;
}
.qs-hero-img img { max-width: 480px; }

/* --------------------------------------------------------------- *
 *  BLOQUES de contenido alternados
 * --------------------------------------------------------------- */
.qs-block {
	display: flex;
	flex-direction: column;
	gap: 2rem;
	align-items: center;
	padding: 4rem 1.2rem;
	max-width: 1280px;
	margin: 0 auto;
}
.qs-block-alt { background: var(--qs-bg-alt); max-width: none; }
.qs-block-alt > * { max-width: 1280px; width: 100%; margin: 0 auto; }

.qs-block-text { flex: 1 1 50%; max-width: 600px; }
.qs-block-img  { flex: 1 1 50%; max-width: 600px; }
.qs-block-img img { border-radius: 16px; }

.qs-block-ctas { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: 1rem; }

/* --------------------------------------------------------------- *
 *  CLIENTES (logos)
 *  Grid con flex-wrap. Sin grid-template-columns para máxima
 *  compatibilidad y porque flex es más predecible con N variable.
 * --------------------------------------------------------------- */
.qs-clientes { padding: 3rem 1.2rem; }
.qs-clientes-grid {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	align-items: center;
	gap: 2rem 3rem;
	max-width: 1280px;
	margin: 0 auto;
	padding: 0;
	list-style: none;
}
.qs-clientes-grid li {
	flex: 0 0 auto;
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 60px;
	opacity: .65;
	transition: opacity .2s ease;
}
.qs-clientes-grid li:hover { opacity: 1; }
.qs-clientes-grid img { max-height: 50px; width: auto; }
.qs-cliente-name {
	font-weight: 600;
	color: var(--qs-muted);
	font-size: 1rem;
}

/* --------------------------------------------------------------- *
 *  CASOS — cards
 * --------------------------------------------------------------- */
.qs-casos { padding: 4rem 1.2rem; max-width: 1280px; margin: 0 auto; }
.qs-casos h2 { text-align: center; margin-bottom: 2rem; }
.qs-casos-grid {
	display: flex;
	flex-wrap: wrap;
	gap: 1.5rem;
	padding: 0;
	list-style: none;
	margin: 0;
}
.qs-casos-grid li { flex: 1 1 280px; }

.qs-caso-card {
	display: flex;
	flex-direction: column;
	height: 100%;
	background: var(--qs-bg);
	border: 1px solid color-mix(in srgb, var(--qs-text) 10%, transparent);
	border-radius: 16px;
	overflow: hidden;
	color: var(--qs-text);
	transition: transform .15s ease, box-shadow .15s ease;
}
.qs-caso-card:hover {
	transform: translateY(-4px);
	box-shadow: 0 12px 24px -12px color-mix(in srgb, var(--qs-primary) 40%, transparent);
	text-decoration: none;
}
.qs-caso-card img { aspect-ratio: 3 / 2; object-fit: cover; }
.qs-caso-card h3 { padding: 1rem 1.2rem; margin: 0; }
.qs-caso-card p  { padding: 0 1.2rem 1.2rem; color: var(--qs-muted); margin: 0; }

/* --------------------------------------------------------------- *
 *  FEATURES con iconos SVG
 * --------------------------------------------------------------- */
.qs-features { padding: 4rem 1.2rem; }
.qs-features h2 { text-align: center; max-width: 800px; margin: 0 auto 1rem; }
.qs-features-intro {
	text-align: center;
	max-width: 720px;
	margin: 0 auto 2.5rem;
	color: var(--qs-muted);
}
.qs-features-grid {
	display: flex;
	flex-wrap: wrap;
	gap: 2rem;
	justify-content: center;
	max-width: 1024px;
	margin: 0 auto;
	padding: 0;
	list-style: none;
}
.qs-features-grid li {
	flex: 1 1 320px;
	text-align: center;
	padding: 1.5rem;
}
.qs-feature-icon {
	width: 80px;
	height: 80px;
	color: var(--qs-primary);
	margin: 0 auto 1rem;
}

/* --------------------------------------------------------------- *
 *  MÉTRICAS / KPIs
 *  Banda oscura con números grandes. Sin background-image, todo CSS.
 * --------------------------------------------------------------- */
.qs-metricas {
	background: var(--qs-dark);
	color: #fff;
	padding: 4rem 1.2rem;
}
.qs-metricas-grid {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 2.5rem;
	max-width: 1280px;
	margin: 0 auto;
	padding: 0;
	list-style: none;
}
.qs-metricas-grid li {
	flex: 1 1 180px;
	text-align: center;
	display: flex;
	flex-direction: column;
	gap: .4rem;
}
.qs-metrica-valor {
	font-size: clamp(2.4rem, 5vw, 3.4rem);
	font-weight: 800;
	line-height: 1;
	color: var(--qs-primary);
	letter-spacing: -0.02em;
}
.qs-metrica-desc {
	font-size: .95rem;
	opacity: .85;
}

/* --------------------------------------------------------------- *
 *  FILOSOFÍA
 * --------------------------------------------------------------- */
.qs-filosofia {
	text-align: center;
	padding: 4rem 1.2rem;
	max-width: 800px;
	margin: 0 auto;
}
.qs-filosofia h2 { color: var(--qs-primary); }
.qs-filosofia p  { font-size: 1.2rem; color: var(--qs-muted); }

/* --------------------------------------------------------------- *
 *  FOOTER
 *  Grid con flex-wrap. Logo + 3 columnas.
 * --------------------------------------------------------------- */
.qs-footer {
	background: var(--qs-dark);
	color: #fff;
	padding: 3rem 1.2rem 1.5rem;
}
.qs-footer-grid {
	display: flex;
	flex-wrap: wrap;
	gap: 2rem;
	max-width: 1280px;
	margin: 0 auto 2rem;
}
.qs-footer-brand { flex: 1 1 240px; }
.qs-footer-brand p { color: rgba(255, 255, 255, .7); }
.qs-footer-col { flex: 1 1 160px; }
.qs-footer-col h3 {
	color: #fff;
	font-size: 1rem;
	margin-bottom: .8rem;
	text-transform: uppercase;
	letter-spacing: .04em;
}
.qs-footer-col ul {
	list-style: none;
	padding: 0;
	margin: 0;
	display: flex;
	flex-direction: column;
	gap: .5rem;
}
.qs-footer-col a { color: rgba(255, 255, 255, .8); }
.qs-footer-col a:hover { color: #fff; }
.qs-footer-copy {
	text-align: center;
	color: rgba(255, 255, 255, .5);
	font-size: .85rem;
	border-top: 1px solid rgba(255, 255, 255, .1);
	padding-top: 1.5rem;
	margin: 0;
}

/* --------------------------------------------------------------- *
 *  PÁGINAS y SINGLE
 * --------------------------------------------------------------- */
.qs-page, .qs-single, .qs-caso-single, .qs-archive {
	max-width: 800px;
	padding: 3rem 1.2rem;
	margin: 0 auto;
}
.qs-caso-single { max-width: 1000px; }
.qs-caso-img img { border-radius: 16px; margin: 2rem 0; }
.qs-caso-cta { text-align: center; padding: 3rem 1rem; }

.qs-404 {
	text-align: center;
	padding: 5rem 1.2rem;
	max-width: 600px;
	margin: 0 auto;
}
.qs-404 h1 { font-size: 5rem; color: var(--qs-primary); margin: 0; }

/* --------------------------------------------------------------- *
 *  RESPONSIVE — Desktop overrides
 *  Mobile-first: las medias queries solo agregan complejidad cuando
 *  hay más espacio. Todo lo de arriba ya funciona en 320px.
 * --------------------------------------------------------------- */
@media (min-width: 768px) {
	.qs-hero {
		flex-direction: row;
		gap: 3rem;
		padding: 5rem 2rem;
	}
	.qs-hero-text { text-align: left; }
	.qs-hero-ctas { justify-content: flex-start; }

	.qs-block { flex-direction: row; gap: 3rem; }
	.qs-block-alt > * {
		display: flex;
		flex-direction: row;
		gap: 3rem;
		padding: 0;
	}
	.qs-block-reverse { flex-direction: row-reverse; }
}

@media (max-width: 767px) {
	/* Menú hamburguesa en móvil. */
	.qs-nav-toggle { display: flex; }
	.qs-menu {
		display: none;
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		background: var(--qs-bg);
		flex-direction: column;
		padding: 1rem 1.2rem;
		gap: .8rem;
		border-bottom: 1px solid color-mix(in srgb, var(--qs-text) 10%, transparent);
	}
	.qs-menu.is-open { display: flex; }
	.qs-cta-primary.is-header { display: none; }
}

/* Reduce motion: respetar la preferencia del usuario. */
@media (prefers-reduced-motion: reduce) {
	*, *::before, *::after {
		animation-duration: 0.01ms !important;
		transition-duration: 0.01ms !important;
		scroll-behavior: auto !important;
	}
}