/* ============================================
   WILMAQ - Sistema de Diseño
   Maquinaria Agrícola para el Campo Peruano
   ============================================ */

/* --------------------------------------------
   VARIABLES CSS
   -------------------------------------------- */
:root {
  /* Colores principales */
  --color-primary: #1a3c26;
  --color-primary-dark: #122b1b;
  --color-primary-light: #2d5a3d;
  --color-accent: #d4af37;
  --color-accent-dark: #b8962e;
  --color-accent-light: #e4c95a;
  --color-earth: #7a5c3c;
  --color-earth-light: #a08060;

  /* Fondos */
  --color-bg: #faf8f3;
  --color-bg-alt: #f0ece3;
  --color-surface: #ffffff;
  --color-surface-alt: #f5f2eb;

  /* Texto */
  --color-text: #1a1a1a;
  --color-text-light: #4a4a4a;
  --color-text-muted: #6e6e6e;
  --color-text-inverse: #ffffff;

  /* Bordes */
  --color-border: #d9d3c7;
  --color-border-light: #e8e4db;

  /* WhatsApp */
  --color-whatsapp: #25d366;
  --color-whatsapp-dark: #128c7e;

  /* Sombras */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --shadow-xl: 0 12px 40px rgba(0,0,0,0.15);

  /* Tipografía */
  --font-body: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-heading: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;

  /* Tamaños de fuente (escala para adultos/usuarios poco digitales) */
  --text-xs: 0.875rem;    /* 14px */
  --text-sm: 0.9375rem;   /* 15px */
  --text-base: 1.0625rem; /* 17px - base grande para legibilidad */
  --text-lg: 1.1875rem;   /* 19px */
  --text-xl: 1.375rem;    /* 22px */
  --text-2xl: 1.75rem;    /* 28px */
  --text-3xl: 2.25rem;    /* 36px */
  --text-4xl: 2.875rem;   /* 46px */

  /* Espaciado */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Bordes redondeados */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transiciones */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;

  /* Z-index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
}

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

html {
  scroll-behavior: smooth;
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

ul {
  list-style: none;
}

/* Focus visible para accesibilidad */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Skip link para accesibilidad */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: 600;
  z-index: 9999;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: var(--space-4);
}

/* Seleccion de texto */
::selection {
  background-color: var(--color-accent);
  color: var(--color-text);
}

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

/* --------------------------------------------
   BOTONES
   -------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.4;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  text-align: center;
  min-height: 48px;
  min-width: 48px;
}

.btn .icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

/* Boton primario - amarillo/maiz */
.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-text);
  border: 2px solid var(--color-accent);
}

.btn--primary:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Boton secundario - verde */
.btn--secondary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border: 2px solid var(--color-primary);
}

.btn--secondary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--secondary:active {
  transform: translateY(0);
}

/* Boton outline */
.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--outline:hover {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Boton ghost */
.btn--ghost {
  background-color: transparent;
  color: var(--color-text-light);
  border: 2px solid var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--color-surface-alt);
}

/* Boton grande */
.btn--large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  min-height: 56px;
  border-radius: var(--radius-lg);
}

.btn--large .icon {
  width: 22px;
  height: 22px;
}

/* --------------------------------------------
   TITULOS DE SECCION
   -------------------------------------------- */
.section-title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--space-4);
}

.section-title--left {
  text-align: left;
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-10);
  line-height: 1.6;
}

/* --------------------------------------------
   ENCABEZADO / HEADER
   -------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: rgba(250, 248, 243, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-base);
}

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

.header__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-3) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.header__logo-img {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.header__logo-text {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.5px;
}

/* Navegación desktop */
.header__nav {
  display: none;
}

.header__menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.header__link {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-light);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.header__link:hover {
  color: var(--color-primary);
  background-color: var(--color-surface-alt);
}

/* Boton CTA desktop */
.header__cta {
  display: none;
}

/* Boton hamburguesa */
.header__hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  min-width: 48px;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.header__hamburger:hover {
  background-color: var(--color-surface-alt);
}

.header__hamburger-line {
  display: block;
  width: 24px;
  height: 2.5px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

/* Hamburguesa activa (X) */
.header__hamburger[aria-expanded="true"] .header__hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.header__hamburger[aria-expanded="true"] .header__hamburger-line:nth-child(2) {
  opacity: 0;
}

.header__hamburger[aria-expanded="true"] .header__hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Menu movil */
.header__mobile-nav {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  overflow: hidden;
  transition: max-height var(--transition-slow), opacity var(--transition-base);
}

.header__mobile-nav[hidden] {
  display: none;
}

.header__mobile-nav:not([hidden]) {
  animation: slideDown 250ms ease forwards;
}

@keyframes slideDown {
  from {
    opacity: 0;
    max-height: 0;
  }
  to {
    opacity: 1;
    max-height: 500px;
  }
}

.header__mobile-menu {
  padding: var(--space-4) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.header__mobile-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.header__mobile-link:hover {
  background-color: var(--color-surface-alt);
  color: var(--color-primary);
}

.header__mobile-cta {
  margin-top: var(--space-2);
  justify-content: center;
}

/* --------------------------------------------
   HERO
   -------------------------------------------- */
.hero {
  position: relative;
  padding: var(--space-16) var(--space-5) var(--space-8);
  background: linear-gradient(160deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
  overflow: hidden;
}

.hero__container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  gap: var(--space-10);
  align-items: center;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 900;
  line-height: 1.15;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
  letter-spacing: -0.5px;
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: var(--space-8);
  max-width: 540px;
}

.hero__buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.hero__image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.hero__img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  transition: transform var(--transition-slow);
}

.hero__image:hover .hero__img {
  transform: scale(1.03);
}

/* Fallback hero */
.hero__img-fallback {
  width: 100%;
  height: 280px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, var(--color-earth) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__img-fallback::after {
  content: 'Imagen de maquinaria agrícola';
  color: var(--color-text-inverse);
  font-size: var(--text-lg);
  font-weight: 600;
}

/* Franja de confianza */
.trust-bar {
  margin-top: var(--space-10);
  padding: var(--space-6) var(--space-5);
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
}

.trust-bar__container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

.trust-bar__item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
}

.trust-bar__icon {
  color: var(--color-accent-dark);
  flex-shrink: 0;
  width: 28px;
  height: 28px;
}

.trust-bar__text {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
}

/* --------------------------------------------
   PRODUCTOS
   -------------------------------------------- */
.products {
  padding: var(--space-20) var(--space-5);
  background-color: var(--color-bg);
}

.products__container {
  max-width: 1200px;
  margin: 0 auto;
}

/* Filtro */
.products__filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  margin-bottom: var(--space-12);
}

.filter-btn {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-light);
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  min-height: 44px;
}

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

.filter-btn--active {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

.filter-btn--active:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
}

/* Familia de productos */
.product-family {
  margin-bottom: var(--space-16);
  animation: fadeInUp 400ms ease forwards;
}

.product-family[hidden] {
  display: none;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.product-family__title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.product-family__icon {
  color: var(--color-accent-dark);
}

.product-family__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  padding-left: calc(26px + var(--space-3));
}

/* Grid de productos */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

/* Tarjeta de producto */
.product-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

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

.product-card__image {
  position: relative;
  overflow: hidden;
  background-color: var(--color-bg-alt);
}

.product-card__img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

/* Fallbacks de producto con gradientes distintivos */
.product-card__img-fallback {
  width: 100%;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.product-card__img-fallback::after {
  color: var(--color-text-inverse);
  font-size: var(--text-base);
  font-weight: 600;
  text-align: center;
  padding: var(--space-4);
}

.product-card__img-fallback--arado-disco {
  background: linear-gradient(135deg, #3d5a3a 0%, #5a7a50 100%);
}
.product-card__img-fallback--arado-disco::after { content: 'Arado de disco'; }

.product-card__img-fallback--arado-vertedera {
  background: linear-gradient(135deg, #2d4a2a 0%, #4a6a40 100%);
}
.product-card__img-fallback--arado-vertedera::after { content: 'Arado de vertedera reversible'; }

.product-card__img-fallback--rastra-tiro {
  background: linear-gradient(135deg, #5a5030 0%, #7a7048 100%);
}
.product-card__img-fallback--rastra-tiro::after { content: 'Rastra aradora de tiro'; }

.product-card__img-fallback--rastra-semipesada {
  background: linear-gradient(135deg, #4a4530 0%, #6a6548 100%);
}
.product-card__img-fallback--rastra-semipesada::after { content: 'Rastra semipesada'; }

.product-card__img-fallback--surcadora-fija {
  background: linear-gradient(135deg, #3a4a35 0%, #556a48 100%);
}
.product-card__img-fallback--surcadora-fija::after { content: 'Surcadora fija'; }

.product-card__img-fallback--surcadora-regulable {
  background: linear-gradient(135deg, #455035 0%, #607048 100%);
}
.product-card__img-fallback--surcadora-regulable::after { content: 'Surcadora regulable'; }

.product-card__img-fallback--carreta {
  background: linear-gradient(135deg, #6a5530 0%, #8a7548 100%);
}
.product-card__img-fallback--carreta::after { content: 'Carreta remolque'; }

.product-card__content {
  padding: var(--space-6);
}

.product-card__name {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.product-card__description {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: var(--space-5);
}

.product-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.product-card__actions .btn {
  flex: 1;
  min-width: 140px;
}

/* --------------------------------------------
   ASESORIA
   -------------------------------------------- */
.advisory {
  padding: var(--space-16) var(--space-5);
  background-color: var(--color-primary);
  position: relative;
  overflow: hidden;
}

.advisory::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(212,175,55,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.advisory__container {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.advisory__icon {
  color: var(--color-accent);
  margin-bottom: var(--space-5);
}

.advisory__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-text-inverse);
  margin-bottom: var(--space-4);
}

.advisory__text {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
  margin-bottom: var(--space-8);
}

.advisory .btn--primary {
  background-color: var(--color-accent);
  color: var(--color-text);
  border-color: var(--color-accent);
}

.advisory .btn--primary:hover {
  background-color: var(--color-accent-light);
  border-color: var(--color-accent-light);
}

/* --------------------------------------------
   SOBRE NOSOTROS
   -------------------------------------------- */
.about {
  padding: var(--space-20) var(--space-5);
  background-color: var(--color-bg-alt);
}

.about__container {
  max-width: 1200px;
  margin: 0 auto;
}

.about__grid {
  display: grid;
  gap: var(--space-10);
  align-items: center;
  margin-bottom: var(--space-16);
}

.about__text {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  line-height: 1.75;
  margin-bottom: var(--space-5);
}

.about__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about__img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  transition: transform var(--transition-slow);
}

.about__image:hover .about__img {
  transform: scale(1.03);
}

.about__img-fallback {
  width: 100%;
  height: 260px;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-earth) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about__img-fallback::after {
  content: 'Equipo WILMAQ';
  color: var(--color-text-inverse);
  font-size: var(--text-lg);
  font-weight: 600;
}

/* Características */
.about__features {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.about__feature {
  background-color: var(--color-surface);
  padding: var(--space-8) var(--space-6);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.about__feature:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.about__feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.about__feature-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.about__feature-text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* --------------------------------------------
   CONTACTO
   -------------------------------------------- */
.contact {
  padding: var(--space-20) var(--space-5);
  background-color: var(--color-bg);
}

.contact__container {
  max-width: 1200px;
  margin: 0 auto;
}

.contact__grid {
  display: grid;
  gap: var(--space-10);
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-4);
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
}

.contact__icon {
  color: var(--color-accent-dark);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact__label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-1);
}

.contact__value {
  font-size: var(--text-base);
  color: var(--color-text);
  font-weight: 500;
}

.contact__link {
  color: var(--color-primary);
  font-weight: 600;
  transition: color var(--transition-fast);
}

.contact__link:hover {
  color: var(--color-accent-dark);
}

.contact__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

/* Mapa */
.contact__map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  min-height: 300px;
}

.contact__map-placeholder {
  width: 100%;
  height: 300px;
  background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-surface-alt) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-8);
  text-align: center;
  color: var(--color-text-muted);
}

.contact__map-icon {
  color: var(--color-accent-dark);
  margin-bottom: var(--space-2);
}

/* --------------------------------------------
   FOOTER
   -------------------------------------------- */
.footer {
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
  padding: var(--space-16) var(--space-5) var(--space-6);
}

.footer__container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-10);
}

.footer__brand {
  max-width: 320px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer__logo-img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.footer__logo-text {
  font-size: var(--text-xl);
  font-weight: 800;
}

.footer__tagline {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.7);
  line-height: 1.6;
}

.footer__heading {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--color-accent);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__link {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.75);
  padding: var(--space-1) 0;
  transition: color var(--transition-fast);
  display: inline-block;
}

.footer__link:hover {
  color: var(--color-accent-light);
}

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-base);
  color: rgba(255,255,255,0.75);
  margin-bottom: var(--space-3);
}

.footer__contact-item a {
  color: rgba(255,255,255,0.75);
  transition: color var(--transition-fast);
}

.footer__contact-item a:hover {
  color: var(--color-accent-light);
}

.footer__icon {
  color: var(--color-accent);
  flex-shrink: 0;
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: var(--space-6);
  text-align: center;
}

.footer__copyright {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.5);
}

/* --------------------------------------------
   BOTON FLOTANTE WHATSAPP
   -------------------------------------------- */
.whatsapp-float {
  position: fixed;
  bottom: var(--space-5);
  right: var(--space-5);
  z-index: var(--z-fixed);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background-color: var(--color-whatsapp);
  color: #ffffff;
  font-weight: 600;
  font-size: var(--text-base);
  border-radius: var(--radius-full);
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-base);
}

.whatsapp-float:hover {
  background-color: var(--color-whatsapp-dark);
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
}

.whatsapp-float:active {
  transform: translateY(0);
}

.whatsapp-float__text {
  display: none;
}

/* --------------------------------------------
   SCROLL TO TOP
   -------------------------------------------- */
.scroll-top {
  position: fixed;
  bottom: var(--space-5);
  left: var(--space-5);
  z-index: var(--z-fixed);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-surface);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  border: 2px solid var(--color-border);
  transition: all var(--transition-base);
}

.scroll-top:hover {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.scroll-top[hidden] {
  display: none;
}

/* --------------------------------------------
   ANIMACIONES SCROLL (fade-in)
   -------------------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------
   MEDIA QUERIES - TABLET (768px+)
   -------------------------------------------- */
@media (min-width: 768px) {
  :root {
    --text-3xl: 2.5rem;   /* 40px */
    --text-4xl: 3.5rem;   /* 56px */
  }

  .hero {
    padding: var(--space-20) var(--space-8) var(--space-12);
  }

  .hero__container {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }

  .hero__title {
    font-size: var(--text-4xl);
  }

  .hero__buttons {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .hero__img,
  .hero__img-fallback {
    height: 380px;
  }

  .trust-bar__container {
    grid-template-columns: repeat(3, 1fr);
  }

  .products {
    padding: var(--space-24) var(--space-8);
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-grid--single {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-grid--single .product-card {
    max-width: 100%;
  }

  .advisory {
    padding: var(--space-20) var(--space-8);
  }

  .about {
    padding: var(--space-24) var(--space-8);
  }

  .about__grid {
    grid-template-columns: 1fr 1fr;
  }

  .about__features {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact {
    padding: var(--space-24) var(--space-8);
  }

  .contact__grid {
    grid-template-columns: 1fr 1fr;
  }

  .contact__actions {
    flex-direction: row;
  }

  .contact__map,
  .contact__map-placeholder {
    height: 100%;
    min-height: 420px;
  }

  .footer {
    padding: var(--space-16) var(--space-8) var(--space-6);
  }

  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .whatsapp-float__text {
    display: inline;
  }

  .section-title {
    font-size: var(--text-3xl);
  }
}

/* --------------------------------------------
   MEDIA QUERIES - DESKTOP (1024px+)
   -------------------------------------------- */
@media (min-width: 1024px) {
  .header__container {
    padding: var(--space-3) var(--space-8);
  }

  .header__nav {
    display: block;
  }

  .header__cta {
    display: inline-flex;
  }

  .header__hamburger {
    display: none;
  }

  .header__mobile-nav {
    display: none !important;
  }

  .hero {
    padding: var(--space-24) var(--space-8) var(--space-12);
  }

  .hero__img,
  .hero__img-fallback {
    height: 450px;
  }

  .products {
    padding: var(--space-24) var(--space-8);
  }

  .product-grid--single {
    grid-template-columns: repeat(2, 1fr);
  }

  .about__img,
  .about__img-fallback {
    height: 320px;
  }
}

/* --------------------------------------------
   MEDIA QUERIES - PANTALLAS GRANDES (1200px+)
   -------------------------------------------- */
@media (min-width: 1200px) {
  .hero__container,
  .products__container,
  .about__container,
  .contact__container,
  .footer__container,
  .trust-bar__container {
    padding-left: 0;
    padding-right: 0;
  }
}

/* --------------------------------------------
   REDUCIR MOVIMIENTO (accesibilidad)
   -------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }
}

/* --------------------------------------------
   ALTO CONTRASTE (accesibilidad)
   -------------------------------------------- */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #0a2000;
    --color-accent: #b8860b;
    --color-text: #000000;
    --color-border: #666666;
  }

  .btn {
    border-width: 3px;
  }

  :focus-visible {
    outline: 4px solid var(--color-accent);
    outline-offset: 3px;
  }
}