/* ==========================================================================
   XPERT GRUPOS - SISTEMA DE DISEÑO JAMSTACK (MOBILE-FIRST)
   Diseño de Alta Conversión (CRO) y Core Web Vitals (CLS = 0)
   ========================================================================== */

:root {
  /* Paleta Corporativa Xpert */
  --color-primary: #0F77BF;          /* Azul industrial vibrante */
  --color-primary-hover: #0A578D;
  --color-primary-light: #EBF5FB;
  --color-navy: #2E3194;             /* Azul corporativo profundo */
  --color-navy-dark: #1E2063;
  --color-accent: #25D366;           /* Verde oficial WhatsApp */
  --color-accent-hover: #1EBE57;
  --color-highlight: #F59E0B;        /* Ámbar / Acentos */

  /* Fondos y Superficies */
  --color-bg: #F8FAFC;
  --color-surface: #FFFFFF;
  --color-surface-subtle: #F1F5F9;
  --color-surface-dark: #0F172A;
  --color-border: #E2E8F0;
  --color-border-hover: #CBD5E1;

  /* Textos y Contrastes */
  --color-text: #0F172A;
  --color-text-muted: #64748B;
  --color-text-light: #94A3B8;
  --color-text-white: #FFFFFF;

  /* Tipografía */
  --font-heading: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-base: 'Roboto', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Espaciados y Radios */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Sombras Modernas */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.06);
  --shadow-card: 0 10px 25px -5px rgba(15, 23, 42, 0.06), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-hover: 0 20px 30px -10px rgba(15, 119, 191, 0.18);
  --shadow-float: 0 8px 30px rgba(37, 211, 102, 0.4);

  /* Transiciones */
  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s ease;

  /* Layout */
  --container-max: 1240px;
  --header-height: 74px;
}

/* --------------------------------------------------------------------------
   RESET & BASICS
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* --------------------------------------------------------------------------
   TOPBAR
   -------------------------------------------------------------------------- */
.topbar {
  background: var(--color-navy-dark);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.8125rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.topbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.topbar-info {
  display: flex;
  align-items: center;
  gap: 20px;
}

.topbar-info a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.9);
}

.topbar-info a:hover {
  color: var(--color-accent);
}

.topbar-socials {
  display: flex;
  align-items: center;
  gap: 12px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.social-link:hover {
  background: var(--color-primary);
  transform: translateY(-2px);
  color: #FFFFFF;
}

.social-link svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

/* --------------------------------------------------------------------------
   STICKY HEADER & NAV
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-fast);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.brand-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.desktop-nav {
  display: none;
}

@media (min-width: 900px) {
  .desktop-nav {
    display: flex;
    align-items: center;
    gap: 32px;
  }
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--color-text);
  position: relative;
  padding: 8px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: #FFFFFF;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-header-cta:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn-header-cta svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* Mobile Toggle */
.mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--radius-sm);
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
}

@media (min-width: 900px) {
  .mobile-toggle {
    display: none;
  }
}

.mobile-toggle span {
  width: 100%;
  height: 2px;
  background: var(--color-navy);
  transition: all 0.3s ease;
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: calc(var(--header-height) + 40px);
  left: 0;
  right: 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transform: translateY(-120%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
  z-index: 999;
}

.mobile-drawer.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer a {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 500;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

.mobile-drawer .btn-mobile-cta {
  margin-top: 10px;
  background: var(--color-accent);
  color: white;
  text-align: center;
  padding: 14px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
}

/* --------------------------------------------------------------------------
   HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, #0B1E38 0%, #17325C 50%, #1E2063 100%);
  color: #FFFFFF;
  padding: 80px 0 90px;
  overflow: hidden;
}

.hero-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(15, 119, 191, 0.25) 0%, transparent 60%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 1;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: #60A5FA;
  margin-bottom: 20px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  line-height: 1.18;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.125rem;
  }
}

.hero-title span {
  color: #38BDF8;
  display: block;
}

.hero-desc {
  font-size: 1.125rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 32px;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.btn-primary-wa {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--color-accent);
  color: #FFFFFF;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  box-shadow: 0 10px 20px rgba(37, 211, 102, 0.3);
  transition: all var(--transition-fast);
}

.btn-primary-wa:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 14px 25px rgba(37, 211, 102, 0.4);
}

.btn-primary-wa svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.btn-outline-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #FFFFFF;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 24px;
}

.stat-item h4 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: #38BDF8;
}

.stat-item p {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.75);
}

.hero-card-featured {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(8px);
}

.hero-feature-img {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 16px;
}

.hero-feature-img img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.hero-feature-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.hero-feature-desc {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   SECTION HEADERS
   -------------------------------------------------------------------------- */
.section {
  padding: 70px 0;
}

.section-muted {
  background: var(--color-surface-subtle);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}

.section-subtitle {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  display: inline-block;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 12px;
  line-height: 1.25;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.375rem;
  }
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   SERVICIOS
   -------------------------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-primary);
}

.service-thumb {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: var(--color-surface-subtle);
}

.service-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.service-card:hover .service-thumb img {
  transform: scale(1.06);
}

.service-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-title {
  font-family: var(--font-heading);
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 10px;
  line-height: 1.35;
}

.service-text {
  font-size: 0.90625rem;
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: 16px;
  flex-grow: 1;
}

.service-highlight {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
  border-left: 3px solid var(--color-primary);
}

.btn-service-quote {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-navy);
  color: white;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  transition: background var(--transition-fast);
}

.btn-service-quote:hover {
  background: var(--color-accent);
  color: white;
}

.btn-service-quote svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* --------------------------------------------------------------------------
   PROYECTOS (CARRUSEL NATIVO CRO)
   -------------------------------------------------------------------------- */
.proyectos-wrapper {
  position: relative;
  padding: 10px 0 20px;
}

.proyectos-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  padding: 10px 4px 20px;
  scrollbar-width: none;
}

.proyectos-track::-webkit-scrollbar {
  display: none;
}

.proyecto-card {
  flex: 0 0 88%;
  scroll-snap-align: start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

@media (min-width: 640px) {
  .proyecto-card {
    flex: 0 0 calc(50% - 12px);
  }
}

@media (min-width: 1024px) {
  .proyecto-card {
    flex: 0 0 calc(33.333% - 16px);
  }
}

.proyecto-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.proyecto-thumb {
  height: 220px;
  position: relative;
  overflow: hidden;
  background: var(--color-surface-subtle);
}

.proyecto-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.proyecto-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(15, 23, 42, 0.85);
  color: #FFFFFF;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  backdrop-filter: blur(4px);
}

.proyecto-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.proyecto-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 10px;
}

.proyecto-desc {
  font-size: 0.90625rem;
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: 18px;
  flex-grow: 1;
}

.btn-proyecto-wa {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
}

.btn-proyecto-wa:hover {
  color: var(--color-accent);
}

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 16px;
}

.btn-nav-slider {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-navy);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.btn-nav-slider:hover {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   PRODUCTOS (CATÁLOGO INDUSTRIAL & TABS)
   -------------------------------------------------------------------------- */
.tabs-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 36px;
}

.tab-btn {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.tab-btn.active {
  background: var(--color-navy);
  color: #FFFFFF;
  border-color: var(--color-navy);
  box-shadow: var(--shadow-sm);
}

.tab-pane {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.tech-spec-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 32px;
  box-shadow: var(--shadow-sm);
}

.tech-spec-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.tech-spec-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 640px) {
  .tech-spec-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .tech-spec-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.spec-item {
  background: var(--color-surface-subtle);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
}

.spec-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--color-primary);
  display: block;
  margin-bottom: 4px;
}

.spec-value {
  font-size: 0.84375rem;
  color: var(--color-text);
  line-height: 1.4;
}

.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 640px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-card);
}

.product-thumb {
  position: relative;
  aspect-ratio: 1 / 1;
  background: #FFFFFF;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--color-border);
}

.product-thumb img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.product-card:hover .product-thumb img {
  transform: scale(1.05);
}

.product-category-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--color-surface-subtle);
  color: var(--color-text-muted);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.product-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-title {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.35;
}

.product-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--color-primary);
  margin-bottom: 16px;
  font-weight: 500;
}

.product-status::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

.btn-product-wa {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-accent);
  color: white;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.90625rem;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-product-wa:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
}

.btn-product-wa svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* --------------------------------------------------------------------------
   VALOR & CONFIANZA PERÚ (BADGES)
   -------------------------------------------------------------------------- */
.trust-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 50px 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 640px) {
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .trust-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.trust-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.trust-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.trust-icon svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.trust-content h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.trust-content p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-surface-dark);
  color: rgba(255, 255, 255, 0.78);
  padding: 70px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  }
}

.footer-logo img {
  height: 44px;
  width: auto;
  margin-bottom: 18px;
  filter: brightness(0) invert(1);
}

.footer-about {
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 8px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--color-primary);
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

.footer-links a:hover {
  color: var(--color-primary);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.875rem;
}

.footer-contact svg {
  flex-shrink: 0;
  margin-top: 4px;
  color: var(--color-primary);
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.footer-reclamaciones-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
}

.footer-reclamaciones-box a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: #FFFFFF;
}

.footer-reclamaciones-box svg {
  width: 48px;
  height: 48px;
  color: #38BDF8;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* --------------------------------------------------------------------------
   BOTÓN FLOTANTE WHATSAPP CON PULSO Y SAFE AREA
   -------------------------------------------------------------------------- */
.whatsapp-float-btn {
  position: fixed;
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  right: 20px;
  background-color: var(--color-accent);
  color: #FFFFFF;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-float);
  z-index: 9999;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  animation: wa-pulse 2.2s infinite;
}

.whatsapp-float-btn:hover {
  transform: scale(1.1);
  color: #FFFFFF;
}

.whatsapp-float-btn svg {
  width: 34px;
  height: 34px;
  fill: currentColor;
}

.whatsapp-tooltip {
  position: absolute;
  right: 70px;
  background: var(--color-surface-dark);
  color: #FFFFFF;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-weight: 500;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateX(10px);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.whatsapp-tooltip::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -6px;
  transform: translateY(-50%);
  border-width: 6px 0 6px 6px;
  border-style: solid;
  border-color: transparent transparent transparent var(--color-surface-dark);
}

@media (min-width: 768px) {
  .whatsapp-float-btn:hover .whatsapp-tooltip {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes wa-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  }
  70% {
    box-shadow: 0 0 0 16px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}