/* ============================================================
   CONSULTORÍA HOST — Sistema de Diseño Principal
   Archivo: assets/css/main.css
   Descripción: Variables CSS, reset, tipografía, layout base,
                componentes globales y utilidades.
   Autor: Consultoría HOST
   ============================================================ */

/* ============================================================
   1. CUSTOM PROPERTIES (Design Tokens)
   ============================================================ */
:root {
  /* --- Paleta principal --- */
  --color-navy:        #0F2B5B;   /* Azul marino — autoridad, confianza */
  --color-blue:        #1A56A8;   /* Azul acción — CTAs, enlaces */
  --color-blue-light:  #3B82F6;   /* Azul claro — hover, estados activos */
  --color-orange:      #E8621A;   /* Naranja HOST — energía, cercanía */
  --color-amber:       #F5A623;   /* Ámbar cálido — acentos, badges */
  --color-green:       #2D7D46;   /* Verde sostenible — medioambiente */
  --color-green-light: #E8F5EE;   /* Verde pálido — fondos suaves */

  /* --- Neutros --- */
  --color-white:       #FFFFFF;
  --color-off-white:   #F8FAFC;
  --color-gray-50:     #F1F5F9;
  --color-gray-100:    #E2E8F0;
  --color-gray-200:    #CBD5E1;
  --color-gray-400:    #94A3B8;
  --color-gray-600:    #475569;
  --color-gray-800:    #1E293B;
  --color-gray-900:    #0F172A;

  /* --- Semánticos --- */
  --color-text-primary:   var(--color-gray-900);
  --color-text-secondary: var(--color-gray-600);
  --color-text-muted:     var(--color-gray-400);
  --color-text-inverse:   var(--color-white);
  --color-bg-page:        var(--color-white);
  --color-bg-alt:         var(--color-off-white);
  --color-bg-dark:        var(--color-navy);
  --color-border:         var(--color-gray-100);
  --color-border-strong:  var(--color-gray-200);

  /* --- Gradientes de marca --- */
  --gradient-hero:    linear-gradient(135deg, #0F2B5B 0%, #1A56A8 60%, #E8621A 100%);
  --gradient-card:    linear-gradient(135deg, var(--color-navy) 0%, var(--color-blue) 100%);
  --gradient-orange:  linear-gradient(135deg, var(--color-orange) 0%, var(--color-amber) 100%);
  --gradient-green:   linear-gradient(135deg, var(--color-green) 0%, #3DAA62 100%);

  /* --- Tipografía --- */
  --font-display: 'Outfit', system-ui, sans-serif;   /* Cabeceras, logo */
  --font-body:    'Inter', system-ui, sans-serif;    /* Cuerpo, UI */

  --text-xs:   0.75rem;    /*  12px */
  --text-sm:   0.875rem;   /*  14px */
  --text-base: 1rem;       /*  16px */
  --text-lg:   1.125rem;   /*  18px */
  --text-xl:   1.25rem;    /*  20px */
  --text-2xl:  1.5rem;     /*  24px */
  --text-3xl:  1.875rem;   /*  30px */
  --text-4xl:  2.25rem;    /*  36px */
  --text-5xl:  3rem;       /*  48px */
  --text-6xl:  3.75rem;    /*  60px */
  --text-hero: clamp(2.5rem, 5vw, 4.5rem); /* Responsive hero */

  --font-weight-normal:    400;
  --font-weight-medium:    500;
  --font-weight-semibold:  600;
  --font-weight-bold:      700;
  --font-weight-extrabold: 800;

  --line-height-tight:  1.2;
  --line-height-snug:   1.4;
  --line-height-normal: 1.6;
  --line-height-loose:  1.8;

  --letter-spacing-tight: -0.02em;
  --letter-spacing-wide:   0.05em;
  --letter-spacing-wider:  0.1em;

  /* --- Espaciado --- */
  --space-1:  0.25rem;   /*  4px */
  --space-2:  0.5rem;    /*  8px */
  --space-3:  0.75rem;   /* 12px */
  --space-4:  1rem;      /* 16px */
  --space-5:  1.25rem;   /* 20px */
  --space-6:  1.5rem;    /* 24px */
  --space-8:  2rem;      /* 32px */
  --space-10: 2.5rem;    /* 40px */
  --space-12: 3rem;      /* 48px */
  --space-16: 4rem;      /* 64px */
  --space-20: 5rem;      /* 80px */
  --space-24: 6rem;      /* 96px */
  --space-32: 8rem;      /* 128px */

  /* --- Bordes --- */
  --radius-sm:   0.25rem;  /*  4px */
  --radius-md:   0.5rem;   /*  8px */
  --radius-lg:   0.75rem;  /* 12px */
  --radius-xl:   1rem;     /* 16px */
  --radius-2xl:  1.5rem;   /* 24px */
  --radius-full: 9999px;   /* Pill */

  /* --- Sombras --- */
  --shadow-sm:  0 1px 2px rgba(15, 43, 91, 0.06);
  --shadow-md:  0 4px 12px rgba(15, 43, 91, 0.1);
  --shadow-lg:  0 8px 24px rgba(15, 43, 91, 0.15);
  --shadow-xl:  0 16px 48px rgba(15, 43, 91, 0.2);
  --shadow-card: 0 2px 8px rgba(15, 43, 91, 0.08), 0 8px 24px rgba(15, 43, 91, 0.06);

  /* --- Transiciones --- */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;
  --transition-bounce: 300ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* --- Layout --- */
  --container-max:    1240px;
  --container-narrow: 800px;
  --container-wide:   1400px;
  --nav-height:       72px;
  --section-padding:  var(--space-20);
}

/* ============================================================
   2. RESET MODERNO
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

/* Respeta preferencias de movimiento reducido */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

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

a:hover {
  color: var(--color-blue-light);
}

ul, ol {
  list-style: none;
}

/* ============================================================
   3. TIPOGRAFÍA BASE
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-loose);
  max-width: 68ch; /* Longitud óptima de lectura */
}

/* Clase para párrafos sin restricción de ancho (tablas, grids) */
p.full-width {
  max-width: none;
}

strong { font-weight: var(--font-weight-semibold); color: var(--color-text-primary); }
em     { font-style: italic; }

/* ============================================================
   4. LAYOUT — CONTENEDOR Y SECCIONES
   ============================================================ */

/* Contenedor principal responsivo */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.container--wide {
  max-width: var(--container-wide);
}

/* Secciones */
.section {
  padding-block: var(--section-padding);
}

.section--sm {
  padding-block: var(--space-12);
}

.section--lg {
  padding-block: var(--space-32);
}

/* Fondos de sección */
.section--white    { background: var(--color-white); }
.section--alt      { background: var(--color-bg-alt); }
.section--dark     { background: var(--color-bg-dark); }
.section--navy     { background: var(--color-navy); }
.section--gradient { background: var(--gradient-hero); }

/* Cabecera de sección */
.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
  max-width: 640px;
  margin-inline: auto;
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  font-size: var(--text-lg);
  margin-inline: auto;
}

/* ============================================================
   5. SISTEMA DE GRID
   ============================================================ */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Auto-fill responsivo */
.grid-auto-sm { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.grid-auto-md { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.grid-auto-lg { grid-template-columns: repeat(auto-fill, minmax(380px, 1fr)); }

/* Flex helpers */
.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col     { display: flex; flex-direction: column; }
.gap-2        { gap: var(--space-2); }
.gap-4        { gap: var(--space-4); }
.gap-6        { gap: var(--space-6); }
.gap-8        { gap: var(--space-8); }

/* ============================================================
   6. NAVEGACIÓN PRINCIPAL
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base), background var(--transition-base);
}

.nav.nav--scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.99);
}

.nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* Logo */
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.nav__logo-mark {
  width: 40px;
  height: 40px;
  background: var(--gradient-card);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: var(--font-weight-extrabold);
  font-size: var(--text-lg);
  color: var(--color-white);
  letter-spacing: -0.03em;
  transition: transform var(--transition-bounce);
}

.nav__logo:hover .nav__logo-mark {
  transform: scale(1.05) rotate(-2deg);
}

.nav__logo-text {
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  font-size: var(--text-xl);
  color: var(--color-navy);
  line-height: 1;
}

.nav__logo-sub {
  display: block;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
}

/* Menú principal */
.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav__item {
  position: relative;
}

.nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-800);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}

.nav__link:hover {
  color: var(--color-blue);
  background: var(--color-gray-50);
}

.nav__link.nav__link--active {
  color: var(--color-blue);
  background: rgba(26, 86, 168, 0.08);
}

/* Indicador de desplegable */
.nav__link .nav__arrow {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.nav__item:hover .nav__arrow,
.nav__item.is-open .nav__arrow {
  transform: rotate(180deg);
}

/* Submenú dropdown */
.nav__dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 0;
  min-width: 220px;
  background: var(--color-white);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base);
  z-index: 100;
}

.nav__item:hover .nav__dropdown,
.nav__item.is-open .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__dropdown-link {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-800);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav__dropdown-link:hover {
  color: var(--color-blue);
  background: var(--color-gray-50);
}

/* CTA en nav */
.nav__cta {
  flex-shrink: 0;
}

/* Menú hamburguesa (móvil) */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-1);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.nav__toggle:hover {
  background: var(--color-gray-50);
}

.nav__toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-gray-800);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-fast);
  transform-origin: center;
}

/* Estado abierto del hamburguesa */
.nav__toggle.is-open .nav__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle.is-open .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav__toggle.is-open .nav__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Espacio para compensar navbar fija */
.nav-offset {
  height: var(--nav-height);
}

/* ============================================================
   7. BOTONES
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
  line-height: 1.4;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: transform var(--transition-bounce),
              box-shadow var(--transition-base),
              background var(--transition-fast),
              color var(--transition-fast),
              border-color var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.btn:hover {
  transform: translateY(-2px);
}

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

/* Primario — naranja HOST */
.btn--primary {
  background: var(--gradient-orange);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(232, 98, 26, 0.35);
}

.btn--primary:hover {
  box-shadow: 0 8px 24px rgba(232, 98, 26, 0.45);
  color: var(--color-white);
}

/* Secundario — azul marino */
.btn--secondary {
  background: var(--color-navy);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(15, 43, 91, 0.25);
}

.btn--secondary:hover {
  background: var(--color-blue);
  box-shadow: 0 8px 24px rgba(15, 43, 91, 0.35);
  color: var(--color-white);
}

/* Outline — borde naranja */
.btn--outline {
  background: transparent;
  color: var(--color-orange);
  border-color: var(--color-orange);
}

.btn--outline:hover {
  background: var(--color-orange);
  color: var(--color-white);
}

/* Outline blanco (para fondos oscuros) */
.btn--outline-white {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn--outline-white:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--color-white);
  color: var(--color-white);
}

/* Ghost */
.btn--ghost {
  background: transparent;
  color: var(--color-blue);
}

.btn--ghost:hover {
  background: rgba(26, 86, 168, 0.08);
  color: var(--color-blue);
}

/* Tamaños */
.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

.btn--xl {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-xl);
  border-radius: var(--radius-2xl);
}

/* Icono solo */
.btn--icon {
  padding: var(--space-3);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
}

/* ============================================================
   8. CARDS
   ============================================================ */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

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

.card__header {
  padding: var(--space-6) var(--space-6) 0;
}

.card__footer {
  padding: 0 var(--space-6) var(--space-6);
}

.card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* Card con acento lateral de color */
.card--accent-orange { border-left: 4px solid var(--color-orange); }
.card--accent-blue   { border-left: 4px solid var(--color-blue); }
.card--accent-green  { border-left: 4px solid var(--color-green); }
.card--accent-navy   { border-left: 4px solid var(--color-navy); }

/* Card oscura (para secciones sobre fondos oscuros) */
.card--dark {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
}

.card--dark .card__title,
.card--dark h3,
.card--dark h4 {
  color: var(--color-white);
}

.card--dark p {
  color: rgba(255, 255, 255, 0.75);
}

/* ============================================================
   9. BADGES / ETIQUETAS
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge--orange { background: rgba(232, 98, 26, 0.12); color: var(--color-orange); }
.badge--blue   { background: rgba(26, 86, 168, 0.1); color: var(--color-blue); }
.badge--green  { background: rgba(45, 125, 70, 0.1); color: var(--color-green); }
.badge--navy   { background: rgba(15, 43, 91, 0.08); color: var(--color-navy); }
.badge--amber  { background: rgba(245, 166, 35, 0.15); color: #B07800; }

/* ============================================================
   10. PILARES HOST (componente central de identidad)
       Usado en la sección "¿Qué es HOST?" y en la home
   ============================================================ */
.host-pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.host-pillar {
  position: relative;
  padding: var(--space-8) var(--space-6);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  text-align: center;
  transition: transform var(--transition-bounce), box-shadow var(--transition-base);
  cursor: default;
}

.host-pillar:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

/* Letra gigante de fondo (firma visual HOST) */
.host-pillar__bg-letter {
  position: absolute;
  top: -0.1em;
  right: -0.05em;
  font-family: var(--font-display);
  font-weight: var(--font-weight-extrabold);
  font-size: 8rem;
  line-height: 1;
  opacity: 0.08;
  color: var(--color-white);
  pointer-events: none;
  user-select: none;
}

.host-pillar__letter {
  font-family: var(--font-display);
  font-weight: var(--font-weight-extrabold);
  font-size: 3rem;
  line-height: 1;
  color: var(--color-white);
  margin-bottom: var(--space-3);
  display: block;
}

.host-pillar__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.host-pillar__desc {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.82);
  line-height: var(--line-height-loose);
  max-width: none;
}

/* Colores de cada pilar */
.host-pillar--h { background: var(--gradient-orange); }
.host-pillar--o { background: var(--gradient-card); }
.host-pillar--s { background: var(--gradient-green); }
.host-pillar--t { background: linear-gradient(135deg, #2D3748, #4A5568); }

/* ============================================================
   11. FORMULARIOS
   ============================================================ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.form-label span {
  color: var(--color-orange);
  margin-left: 2px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background: var(--color-white);
  border: 2px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-blue);
  box-shadow: 0 0 0 4px rgba(26, 86, 168, 0.12);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.form-error {
  font-size: var(--text-sm);
  color: #DC2626;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.form-success {
  padding: var(--space-4) var(--space-6);
  background: var(--color-green-light);
  border: 1px solid var(--color-green);
  border-radius: var(--radius-lg);
  color: var(--color-green);
  font-weight: var(--font-weight-medium);
  display: none;
}

.form-success.is-visible {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* ============================================================
   12. FOOTER
   ============================================================ */
.footer {
  background: var(--color-gray-900);
  color: var(--color-white);
  padding-top: var(--space-16);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__brand {}

.footer__brand .nav__logo {
  margin-bottom: var(--space-4);
}

.footer__brand-desc {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  line-height: var(--line-height-loose);
  max-width: 300px;
  margin-bottom: var(--space-6);
}

.footer__col-title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-wider);
  text-transform: uppercase;
  color: var(--color-amber);
  margin-bottom: var(--space-4);
}

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

.footer__link {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: color var(--transition-fast);
  line-height: var(--line-height-snug);
}

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

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.footer__contact-icon {
  width: 18px;
  height: 18px;
  color: var(--color-orange);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer__contact-text {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  line-height: var(--line-height-snug);
}

.footer__contact-text a {
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

.footer__contact-text a:hover {
  color: var(--color-white);
}

.footer__bottom {
  padding-block: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.footer__copy {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.4);
}

.footer__legal {
  display: flex;
  gap: var(--space-6);
}

.footer__legal-link {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.4);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__legal-link:hover {
  color: rgba(255, 255, 255, 0.8);
}

/* ============================================================
   13. COMPONENTES MENORES — UTILIDADES
   ============================================================ */

/* Divisor con gradiente */
.divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-border-strong), transparent);
  border: none;
  margin-block: var(--space-12);
}

/* Tag/eyebrow sobre títulos */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-wider);
  text-transform: uppercase;
  color: var(--color-orange);
  margin-bottom: var(--space-4);
}

.eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-orange);
  border-radius: var(--radius-full);
}

/* Highlight de texto */
.text-highlight {
  position: relative;
  color: var(--color-orange);
}

/* Alineación de texto */
.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }

/* Colores de texto de utilidad */
.text-navy   { color: var(--color-navy); }
.text-blue   { color: var(--color-blue); }
.text-orange { color: var(--color-orange); }
.text-green  { color: var(--color-green); }
.text-white  { color: var(--color-white); }
.text-muted  { color: var(--color-text-muted); }

/* Visibilidad accesible */
.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;
}

/* Animación scroll-reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--delay-4 { transition-delay: 0.4s; }

/* ============================================================
   14. RESPONSIVE — PUNTOS DE CORTE
   Breakpoints: sm:640 | md:768 | lg:1024 | xl:1280
   ============================================================ */

/* Tablet (≤1024px) */
@media (max-width: 1024px) {
  :root {
    --section-padding: var(--space-16);
  }

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

  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .nav__menu,
  .nav__cta {
    display: none;
  }

  .nav__toggle {
    display: flex;
  }
}

/* Móvil grande (≤768px) */
@media (max-width: 768px) {
  :root {
    --section-padding: var(--space-12);
    --nav-height: 64px;
  }

  h1 { font-size: var(--text-4xl); }
  h2 { font-size: var(--text-3xl); }
  h3 { font-size: var(--text-2xl); }

  .container {
    padding-inline: var(--space-4);
  }

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

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

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer__legal {
    justify-content: center;
  }
}

/* Móvil pequeño (≤480px) */
@media (max-width: 480px) {
  :root {
    --section-padding: var(--space-10);
  }

  .host-pillars {
    grid-template-columns: 1fr;
  }

  .btn--xl {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
  }
}

/* ============================================================
   15. MENÚ MÓVIL (drawer lateral)
   ============================================================ */
.nav__mobile {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 300px;
  background: var(--color-white);
  box-shadow: var(--shadow-xl);
  z-index: 999;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
  padding: var(--space-20) var(--space-6) var(--space-8);
}

.nav__mobile.is-open {
  transform: translateX(0);
}

.nav__mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.nav__mobile-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

.nav__mobile-menu {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.nav__mobile-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-800);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav__mobile-link:hover {
  background: var(--color-gray-50);
  color: var(--color-blue);
}

.nav__mobile-separator {
  height: 1px;
  background: var(--color-border);
  margin-block: var(--space-2);
}

.nav__mobile-section-title {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-wider);
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: var(--space-3) var(--space-4) var(--space-1);
}

.nav__mobile-cta {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}