/* =====================================================================
   QUERSYSTEM — Hoja de estilo principal
   Web estática · Mobile-first
   ===================================================================== */

/* ----------
   Variables de marca
   ---------- */
:root {
  --qs-navy:        #16163F;
  --qs-navy-2:      #1f1f54;
  --qs-black:       #000000;
  --qs-accent:      #00C200;
  --qs-accent-dark: #049105;
  --qs-accent-light: #34F533;

  /* Uso semantico: verde corporativo con contraste segun fondo */
  --qs-on-light:   var(--qs-accent-dark);   /* verde oscuro para fondos claros (blanco/gris) */
  --qs-on-dark:    var(--qs-accent-light);   /* verde claro para fondos oscuros (negro) */

  /* Paleta verde qs */
  --qs-50:  #EFFFEE;
  --qs-100: #D8FFD7;
  --qs-200: #B3FFB2;
  --qs-300: #78FF76;
  --qs-400: #34F533;
  --qs-500: #0ADE09;
  --qs-600: #4BFF01;
  --qs-700: #049105;
  --qs-800: #0A710B;
  --qs-900: #0A5D0C;
  --qs-950: #003402;

  /* Neutros */
  --qs-white:  #FFFFFF;
  --qs-light:  #F5F5F5;
  --qs-gray:   #747474;
  --qs-text:   #2A2A2A;
  --qs-text-2: #D1D1D1;
  --qs-border: #E5E5E5;

  /* Tipografía */
  --font-mono:  'Share Tech Mono', ui-monospace, monospace;
  --font-sans:  'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Layout */
  --max-width: 1200px;
  --radius:    6px;
  --shadow:    0 4px 20px rgba(22,22,63,.08);
  --shadow-lg: 0 10px 40px rgba(22,22,63,.12);
  --transition: .3s ease;
}

/* ----------
   Reset
   ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; line-height: 1.5; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  color: var(--qs-text);
  background: var(--qs-white);
  overflow-x: hidden;
  font-size: 16px;
}
img, picture, video, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--qs-navy); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--qs-on-light); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }
:focus-visible { outline: 3px solid var(--qs-on-light); outline-offset: 2px; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ----------
   Tipografía
   ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-sans);
  font-weight: 800;
  line-height: 1.2;
  color: var(--qs-navy);
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.5rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.2rem, 3vw, 1.6rem); margin-bottom: .75rem; }
p  { margin-bottom: 1rem; }

.section {
  padding: 4rem 0;
}
.section--light  { background: var(--qs-light); }
.section--navy   { background: var(--qs-black); color: var(--qs-white); }
.section--navy h2, .section--navy h3 { color: var(--qs-white); }
.eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  color: var(--qs-on-light);
  font-size: .85rem;
  letter-spacing: .12em;
  margin-bottom: .75rem;
  display: block;
}

/* ----------
   Botones
   ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .8rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  transition: all var(--transition);
  text-transform: uppercase;
  letter-spacing: .03em;
}
.btn--gold {
  background: var(--qs-accent);
  color: var(--qs-white);
}
.btn--gold:hover { background: var(--qs-accent-light); color: var(--qs-white); }
.btn--outline {
  background: transparent;
  color: var(--qs-navy);
  border: 2px solid var(--qs-navy);
}
.btn--outline:hover { background: var(--qs-black); color: var(--qs-white); }
.btn--green {
  background: var(--qs-accent);
  color: var(--qs-white);
}
.btn--green:hover { background: var(--qs-accent-light); color: var(--qs-white); }
.btn--white {
  background: var(--qs-white);
  color: var(--qs-navy);
}
.btn--white:hover { background: var(--qs-accent); color: var(--qs-white); }

/* ============================================
   HEADER
   ============================================ */
.utility-bar {
  background: var(--qs-black);
  color: var(--qs-white);
  font-size: .82rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.utility-bar .container {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 1.5rem;
  padding-top: .4rem;
  padding-bottom: .4rem;
  flex-wrap: wrap;
}
.utility-bar a {
  color: var(--qs-white);
  display: inline-flex;
  align-items: center;
  gap: .35rem;
}
.utility-bar a:hover { color: var(--qs-on-dark); }
.utility-bar i { font-size: .8rem; opacity: .85; }

.site-header {
  background: var(--qs-white);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: .6rem;
  padding-bottom: .6rem;
  gap: 1rem;
}
.site-logo img { height: 50px; width: auto; }

.main-nav { display: flex; align-items: center; gap: 1.75rem; }
.main-nav > li > a {
  font-family: var(--font-mono);
  font-weight: 600;
  text-transform: uppercase;
  font-size: .95rem;
  letter-spacing: .04em;
  color: var(--qs-navy);
  padding: .5rem 0;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .35rem;
}
.main-nav > li > a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--qs-on-light);
  transition: width var(--transition);
}
.main-nav > li > a:hover, .main-nav > li > a.active { color: var(--qs-on-light); }
.main-nav > li > a:hover::after, .main-nav > li > a.active::after { width: 100%; }

/* Dropdown */
.has-submenu > a::before {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: .6rem;
  margin-right: .25rem;
  transition: transform var(--transition);
}
.has-submenu:hover > a::before { transform: rotate(180deg); }
.submenu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--qs-black);
  min-width: 240px;
  padding: .5rem 0;
  border-radius: 0 0 var(--radius) var(--radius);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition);
  box-shadow: var(--shadow-lg);
}
.has-submenu { position: relative; }
.has-submenu:hover .submenu { opacity: 1; visibility: visible; transform: translateY(0); }
.submenu a {
  display: block;
  padding: .6rem 1.25rem;
  color: var(--qs-white);
  font-size: .9rem;
  font-family: var(--font-sans);
  text-transform: none;
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.submenu a:hover { background: rgba(255,255,255,.08); color: var(--qs-on-dark); }

/* Toggle móvil */
.nav-toggle {
  display: none;
  font-size: 1.4rem;
  color: var(--qs-navy);
  padding: .25rem .5rem;
}

/* ============================================
   HERO (home)
   ============================================ */
.hero {
  position: relative;
  background: var(--qs-black);
  color: var(--qs-white);
  padding: 6rem 0 4rem;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(212,181,116,.18), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(0,194,0,.10), transparent 50%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; text-align: center; }
.hero h1 {
  color: var(--qs-white);
  margin-bottom: 1rem;
}
.hero h1 .rotating {
  display: block;
  font-family: var(--font-mono);
  color: var(--qs-on-dark);
  min-height: 1.2em;
  margin-top: .25rem;
}
.hero p {
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto 2rem;
  color: var(--qs-text-2);
}
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ----------
   Grid de servicios (home + usos)
   ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.75rem;
  margin-top: 2.5rem;
}
.service-card {
  background: var(--qs-white);
  border: 1px solid var(--qs-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--qs-on-light);
}
.service-card__img {
  aspect-ratio: 16 / 9;
  background: var(--qs-light);
  overflow: hidden;
}
.service-card__img img { width: 100%; height: 100%; object-fit: cover; }
.service-card__body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.service-card h3 { color: var(--qs-navy); margin-bottom: .5rem; font-size: 1.25rem; }
.service-card p { color: var(--qs-gray); flex: 1; }
.service-card .more {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: .85rem;
  color: var(--qs-accent);
  margin-top: .5rem;
  letter-spacing: .05em;
}
.service-card .more:hover { color: var(--qs-accent-dark); }

/* ----------
   Stats / contadores
   ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
}
.stat__value {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--qs-on-dark);
  display: block;
  line-height: 1;
  margin-bottom: .5rem;
}
.stat__value .suffix { font-size: .6em; color: var(--qs-accent); margin-left: .15rem; }
.stat__label {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: .8rem;
  letter-spacing: .12em;
  color: var(--qs-navy);
  font-weight: 600;
}
.section--navy .stat__label { color: var(--qs-white); }

/* ----------
   Bloque descriptivo
   ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.split--left .eyebrow { margin-bottom: 1rem; }
.split__img img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }

/* ----------
   Tarjetas de blog (listado home + /blog)
   ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.75rem;
}
.post-card {
  background: var(--qs-white);
  border: 1px solid var(--qs-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.post-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.post-card__img { aspect-ratio: 16/9; background: var(--qs-light); overflow: hidden; }
.post-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.post-card:hover .post-card__img img { transform: scale(1.05); }
.post-card__body { padding: 1.25rem; flex: 1; display: flex; flex-direction: column; }
.post-card__meta {
  font-size: .8rem;
  color: var(--qs-gray);
  margin-bottom: .5rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.post-card h3 { font-size: 1.1rem; margin-bottom: .5rem; }
.post-card p { color: var(--qs-gray); flex: 1; font-size: .92rem; }
.post-card .more {
  display: inline-block;
  margin-top: .5rem;
  color: var(--qs-accent);
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: .82rem;
}
.post-card .more:hover { color: var(--qs-accent-dark); }

/* ============================================
   PÁGINA DE SERVICIO (interior)
   ============================================ */
.page-hero {
  background: var(--qs-black);
  color: var(--qs-white);
  padding: 5rem 0 3rem;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(212,181,116,.15), transparent 50%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: var(--qs-white); }
.page-hero p { color: var(--qs-text-2); max-width: 700px; font-size: 1.1rem; margin-top: 1rem; }
.breadcrumb {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--qs-on-dark);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.breadcrumb a { color: var(--qs-on-dark); }
.breadcrumb a:hover { color: var(--qs-white); }

.service-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  padding: 4rem 0;
  align-items: start;
}
.service-content h2 { margin-top: 2.5rem; }
.service-content h2:first-child { margin-top: 0; }
.features-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}
.feature {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem;
  background: var(--qs-light);
  border-radius: var(--radius);
  border-left: 4px solid var(--qs-accent);
  transition: border-color var(--transition);
}
.feature:hover { border-left-color: var(--qs-on-light); }
.feature__icon {
  font-size: 1.5rem;
  color: var(--qs-accent);
  flex-shrink: 0;
  margin-top: .15rem;
}
.feature h4 { color: var(--qs-navy); font-size: 1rem; margin-bottom: .25rem; }
.feature p { font-size: .9rem; color: var(--qs-gray); margin: 0; }

.service-aside .service-aside__img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  margin-bottom: 1.5rem;
}
.service-aside .cta-card {
  background: var(--qs-black);
  color: var(--qs-white);
  padding: 2rem 1.75rem;
  border-radius: var(--radius);
  text-align: center;
}
.service-aside .cta-card h3 { color: var(--qs-white); margin-bottom: 1rem; }
.service-aside .cta-card p { color: var(--qs-text-2); margin-bottom: 1.25rem; }

/* ----------
   Tabs/bloques de servicio (seguridad/compatibilidad/funcionalidades)
   ---------- */
.service-blocks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.service-block {
  background: var(--qs-white);
  border-top: 4px solid var(--qs-accent);
  padding: 1.5rem;
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow);
  transition: transform var(--transition);
}
.service-block:hover { transform: translateY(-4px); border-top-color: var(--qs-on-light); }
.service-block h4 { color: var(--qs-navy); margin-bottom: .5rem; display: flex; align-items: center; gap: .5rem; }
.service-block h4 i { color: var(--qs-accent); }
.service-block p { font-size: .9rem; color: var(--qs-gray); margin: 0; }

/* ============================================
   NOSOTROS
   ============================================ */
.about-anchors {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  justify-content: center;
}
.about-anchors a {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: .85rem;
  padding: .5rem 1rem;
  border: 1px solid var(--qs-navy);
  border-radius: var(--radius);
  color: var(--qs-navy);
  letter-spacing: .05em;
}
.about-anchors a:hover { background: var(--qs-black); color: var(--qs-white); }

.about-section { scroll-margin-top: 120px; padding: 3rem 0; border-bottom: 1px solid var(--qs-border); }
.about-section:last-child { border-bottom: none; }

/* ----------
   Bloque para formulario de Google (hueco)
   ---------- */
.form-placeholder {
  background: var(--qs-light);
  border: 2px dashed var(--qs-border);
  border-radius: var(--radius);
  padding: 3rem 2rem;
  text-align: center;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
}
.form-placeholder i { font-size: 2.5rem; color: var(--qs-on-light); }
.form-placeholder p { color: var(--qs-gray); margin: 0; }
.form-injected { width: 100%; }
.form-injected iframe, .form-injected form { max-width: 100% !important; }

/* ============================================
   CONTACTO
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  padding: 4rem 0;
}
.contact-info h2 { color: var(--qs-navy); }
.contact-info address { font-style: normal; font-size: 1.05rem; line-height: 1.7; }
.contact-info .pill {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem 1rem;
  background: var(--qs-black);
  color: var(--qs-white);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: .9rem;
  margin: .3rem 0;
}
.contact-info .pill i { color: var(--qs-on-dark); }
.contact-info .pill a { color: var(--qs-white); }
.contact-info .pill:hover { background: rgba(255,255,255,.08); color: var(--qs-on-dark); }

.map-embed {
  margin-top: 2rem;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.map-embed iframe { width: 100%; height: 360px; border: 0; display: block; }

/* ============================================
   BLOG /_article
   ============================================ */
.article { padding: 3rem 0; }
.article__header { max-width: 800px; margin: 0 auto 2rem; text-align: center; }
.article__meta {
  font-family: var(--font-mono);
  color: var(--qs-gray);
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: .75rem;
}
.article__meta a { color: var(--qs-accent); }
.article__featured {
  max-width: 800px;
  margin: 0 auto 2.5rem;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.article__content {
  max-width: 780px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--qs-text);
}
.article__content p { margin-bottom: 1.5rem; }
.article__content h2 { margin: 2.5rem 0 1rem; text-align: left; }
.article__content h3 { margin: 2rem 0 1rem; text-align: left; }
.article__content ul, .article__content ol { margin-bottom: 1.5rem; padding-left: 1.5rem; }
.article__content li { margin-bottom: .5rem; }
.article__content img {
  margin: 2rem auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.article__content a { color: var(--qs-accent); font-weight: 600; text-decoration: underline; }
.article__content a:hover { color: var(--qs-accent-dark); }
.article__content code {
  font-family: var(--font-mono);
  background: var(--qs-light);
  padding: .15rem .4rem;
  border-radius: 4px;
  font-size: .92em;
}
.article__back {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: .85rem;
  margin-bottom: 2rem;
  color: var(--qs-navy);
}
.article__back:hover { color: var(--qs-on-light); }

/* ============================================
   POLÍTICA DE PRIVACIDAD (legal)
   ============================================ */
.legal { padding: 3rem 0; max-width: 820px; }
.legal h2 { margin-top: 2.5rem; font-size: 1.5rem; }
.legal h2:first-child { margin-top: 0; }
.legal h3 { font-size: 1.1rem; margin-top: 1.5rem; }
.legal p { margin-bottom: 1rem; }
.legal ul, .legal ol { padding-left: 1.5rem; margin-bottom: 1.25rem; }
.legal li { margin-bottom: .4rem; list-style: disc; }
.legal ol li { list-style: decimal; }
.legal strong { color: var(--qs-navy); }
.legal .firma {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 2px solid var(--qs-border);
  font-size: .95rem;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--qs-black);
  color: var(--qs-white);
  padding-top: 4rem;
}
.site-footer a { color: var(--qs-white); }
.site-footer a:hover { color: var(--qs-on-dark); }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  padding-bottom: 3rem;
}
.footer-grid > div { min-width: 0; }
.footer-grid h4 {
  color: var(--qs-on-dark);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .85rem;
  margin-bottom: 1rem;
}
.footer-grid ul li { margin-bottom: .5rem; font-size: .9rem; }
.footer-grid ul li a { color: var(--qs-text-2); }
.footer-grid p { color: var(--qs-text-2); font-size: .9rem; }
.footer-brand { display: flex; align-items: center; gap: .75rem; margin-bottom: 1rem; }
.footer-brand img { height: 48px; width: auto; }
.footer-contact { font-size: .9rem; color: var(--qs-text-2); line-height: 1.7; }

/* Badges / certificaciones */
.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  padding: 2rem 0;
  border-top: 1px solid rgba(255,255,255,.08);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-badges a { display: inline-block; }
.footer-badges img { height: 60px; width: auto; padding: .25rem; background: var(--qs-white); border-radius: 4px; }
.footer-badges .badge-ens img { height: 80px; }
.footer-badges .fund-text {
  flex: 1;
  min-width: 280px;
  color: var(--qs-text-2);
  font-size: .82rem;
  line-height: 1.5;
}
.footer-badges .fund-text strong { color: var(--qs-white); }
.footer-badges .fund-logos { display: flex; gap: 1rem; align-items: center; }
.footer-badges .fund-logos img { height: 50px; }

.footer-bottom {
  text-align: center;
  padding: 1.5rem 0;
  font-size: .82rem;
  color: var(--qs-text-2);
}
.footer-bottom a { color: var(--qs-on-dark); }

/* ============================================
   BANNER DE COOKIES
   ============================================ */
.cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--qs-black);
  color: var(--qs-white);
  padding: 1.25rem;
  z-index: 2000;
  display: none;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  box-shadow: 0 -4px 20px rgba(0,0,0,.2);
}
.cookie-banner.show { display: flex; }
.cookie-banner p { margin: 0; font-size: .88rem; color: var(--qs-text-2); flex: 1; min-width: 240px; }
.cookie-banner a { color: var(--qs-on-dark); text-decoration: underline; }
.cookie-actions { display: flex; gap: .5rem; }

/* ============================================
   Utilidades
   ============================================ */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 992px) {
  .split { grid-template-columns: 1fr; gap: 2rem; }
  .service-layout { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .features-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed;
    top: 0; right: -100%;
    width: 80%; max-width: 320px;
    height: 100vh;
    background: var(--qs-black);
    flex-direction: column;
    align-items: flex-start;
    padding: 5rem 1.5rem 2rem;
    gap: 0;
    transition: right .35s ease;
    box-shadow: -10px 0 40px rgba(0,0,0,.3);
    z-index: 999;
    overflow-y: auto;
  }
  .main-nav.open { right: 0; }
  .main-nav > li { width: 100%; border-bottom: 1px solid rgba(255,255,255,.08); }
  .main-nav > li > a {
    color: var(--qs-white);
    padding: 1rem 0;
    width: 100%;
    font-size: 1.05rem;
  }
  .main-nav > li > a:hover, .main-nav > li > a.active { color: var(--qs-on-dark); }
  .has-submenu > a::before { margin-left: auto; color: var(--qs-on-dark); }
  .submenu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: transparent;
    min-width: 0;
    padding: 0 0 .5rem 1rem;
    box-shadow: none;
    display: none;
  }
  .has-submenu.open .submenu { display: block; }
  .submenu a { padding: .6rem 0; font-size: .9rem; border-bottom: none; }

  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 998;
  }
  .nav-overlay.show { display: block; }

  body.nav-open { overflow: hidden; }

  .utility-bar .container { justify-content: center; gap: 1rem; font-size: .75rem; }
  .utility-bar a span { display: none; }
  .utility-bar a i { font-size: .95rem; }

  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.75rem; }
  .hero { padding: 4rem 0 3rem; }
  .section { padding: 2.5rem 0; }
}

@media (max-width: 480px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero-actions, .about-anchors { gap: .5rem; }
  .footer-badges { flex-direction: column; align-items: flex-start; }
  .footer-badges .fund-text { width: 100%; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}