/* ==========================================================================
   ESTILOS GLOBALES PREMIUM - GUÍA CÉDULA PROFESIONAL 2026
   Dominio: guiacedulaprofesional.com.mx
   Nicho: Cédula Profesional en México y EE.UU.
   ========================================================================== */

/* --- 1. VARIABLES DEL SISTEMA DE DISEÑO (TOKENS) --- */
:root {
  /* Paleta de Colores Curada (Institucional Modernizada) */
  --color-primary:         #1A7A4A; /* Verde bandera institucional */
  --color-primary-dark:    #0F5432; /* Verde profundo para hover/acentos */
  --color-primary-light:   #E8F5E9; /* Fondo verde muy claro para alertas/secciones */
  --color-primary-subtle:  #F4FBF7; /* Fondo verde sutil tipo cristal */
  --color-secondary:       #1565C0; /* Azul federal para EE.UU. y badges */
  --color-secondary-light: #E3F2FD; /* Fondo azul claro interactivo */
  --color-text:            #1F2937; /* Gris oscuro para legibilidad perfecta (anti-fatiga) */
  --color-text-muted:      #4B5563; /* Gris medio para descripciones y metadatos */
  --color-text-subtle:     #9CA3AF; /* Gris claro para leyendas secundarias */
  --color-bg:              #FFFFFF; /* Fondo principal blanco */
  --color-bg-alt:          #F9FAFB; /* Fondo alternativo gris ultra-suave */
  --color-border:          #E5E7EB; /* Gris borde suave para separar secciones */
  
  /* Colores de Estado */
  --color-warning:         #FBBF24; /* Amarillo para avisos de sitio independiente */
  --color-warning-bg:      #FFFBEB; /* Fondo amarillo claro */
  --color-danger:          #EF4444; /* Rojo para advertencias críticas o errores */
  --color-danger-bg:       #FEF2F2; /* Fondo rojo sutil */
  --color-success:         #10B981; /* Verde éxito */
  --color-success-bg:      #ECFDF5; /* Fondo verde éxito */
  
  /* Fuentes */
  --font-sans:             'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono:             'Fira Mono', monospace;

  /* Layout y Tamaños */
  --max-width:             1200px;
  --radius-sm:             6px;
  --radius-md:             10px;
  --radius-lg:             16px;
  
  /* Sombras Premium */
  --shadow-card:           0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-hover:          0 20px 25px -5px rgba(26, 122, 74, 0.08), 0 10px 10px -5px rgba(26, 122, 74, 0.04);
  --shadow-modal:          0 25px 50px -12px rgba(0, 0, 0, 0.15);
  
  /* Transiciones */
  --transition-fast:       0.15s ease;
  --transition-normal:     0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- 2. RESET Y CONFIGURACIÓN BASE --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

p {
  margin-bottom: 1.25rem;
}

/* Encabezados */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1.25rem;
}

h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); letter-spacing: -0.025em; }
h2 { font-size: clamp(1.4rem, 3vw, 1.8rem); letter-spacing: -0.02em; margin-top: 2.5rem; }
h3 { font-size: 1.25rem; margin-top: 1.5rem; }

/* Contenedor General */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- 3. COMPONENTES GLOBALES --- */

/* Aviso Legal de Independencia */
.aviso-legal {
  background-color: var(--color-warning-bg);
  border-bottom: 2px solid var(--color-warning);
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
  position: relative;
  z-index: 1001;
}

.aviso-legal p {
  margin-bottom: 0;
  display: inline-block;
}

.aviso-legal a {
  color: var(--color-text);
  font-weight: 600;
  text-decoration: underline;
}

/* Banner de Contexto de EE.UU. */
.banner-us {
  background-color: var(--color-secondary-light);
  border-bottom: 2px solid var(--color-secondary);
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
}

.banner-us p {
  margin-bottom: 0;
}

.banner-us a {
  color: var(--color-secondary);
  font-weight: 700;
  margin-left: 0.5rem;
}

/* --- 4. HEADER Y MENÚ DE NAVEGACIÓN --- */
.site-header {
  background-color: rgba(26, 122, 74, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
  padding: 0.75rem 0;
}

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

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

.logo-icon {
  margin-right: 8px;
}

.logo-text {
  color: #FFFFFF;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.logo-text span {
  font-weight: 400;
  opacity: 0.9;
}

/* Lista del menú */
.nav-lista {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.5rem;
}

.nav-lista > li {
  position: relative;
}

.nav-lista > li > a {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-lista > li > a:hover,
.nav-lista > li.activo > a {
  color: #FFFFFF;
  background-color: rgba(255, 255, 255, 0.12);
  text-decoration: none;
}

/* Menú Desplegable (Dropdown) */
.has-dropdown {
  cursor: pointer;
}

.has-dropdown > a::after {
  content: '▼';
  font-size: 0.65rem;
  margin-left: 5px;
  vertical-align: middle;
  opacity: 0.8;
  display: inline-block;
  transition: transform var(--transition-fast);
}

.has-dropdown:hover > a::after {
  transform: rotate(180deg);
}

.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-modal);
  min-width: 230px;
  padding: 0.5rem 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
}

.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown li a {
  color: var(--color-text);
  padding: 0.6rem 1.2rem;
  font-size: 0.88rem;
  display: block;
  font-weight: 500;
  transition: background var(--transition-fast);
}

.dropdown li a:hover {
  background-color: var(--color-primary-subtle);
  color: var(--color-primary);
  text-decoration: none;
}

/* Botón menú móvil */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #FFFFFF;
  border-radius: 2px;
  transition: all var(--transition-normal);
}

/* --- 5. BREADCRUMBS Y HERO --- */
.breadcrumb {
  background-color: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 0;
  font-size: 0.82rem;
  color: var(--color-text-subtle);
}

.breadcrumb-inner {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.breadcrumb-inner a {
  color: var(--color-text-muted);
}

.breadcrumb-separator {
  color: var(--color-text-subtle);
}

/* Hero Section Premium */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #FFFFFF;
  padding: 4.5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0) 60%);
  pointer-events: none;
}

.hero h1 {
  color: #FFFFFF;
  max-width: 850px;
  margin: 0 auto 1rem;
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  max-width: 700px;
  margin: 0 auto 2rem;
}

.hero-badges {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-badge {
  background-color: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 9999px;
  padding: 0.35rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

/* --- 6. DISEÑO ESTRUCTURAL DE PÁGINAS --- */
.page-layout {
  padding: 4rem 0;
}

.layout-2col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 992px) {
  .layout-2col {
    grid-template-columns: 1fr 320px;
  }
}

/* Área de Contenido Principal */
.main-content {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* Sidebar Premium */
.sidebar {
  align-self: start;
  position: sticky;
  top: 100px;
  min-width: 0;
}

.sidebar-box {
  background-color: var(--color-primary-subtle);
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-card);
}

.sidebar-box h3 {
  color: var(--color-primary);
  font-size: 1.15rem;
  margin-top: 0;
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--color-primary-light);
  padding-bottom: 0.5rem;
}

.sidebar-links {
  list-style: none;
}

.sidebar-links li {
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.sidebar-links a {
  color: var(--color-text);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-links a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

/* --- 7. DISEÑO DE BOTONES Y BOTONES DE ACCIÓN --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
  gap: 8px;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 4px 6px -1px rgba(26, 122, 74, 0.2);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: #FFFFFF;
  box-shadow: 0 10px 15px -3px rgba(26, 122, 74, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

.btn-white {
  background-color: #FFFFFF;
  color: var(--color-primary);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.btn-white:hover {
  background-color: var(--color-primary-subtle);
  color: var(--color-primary-dark);
}

.btn-blue {
  background-color: var(--color-secondary);
  color: #FFFFFF;
  box-shadow: 0 4px 6px -1px rgba(21, 101, 192, 0.2);
}

.btn-blue:hover {
  background-color: #0D47A1;
  color: #FFFFFF;
  box-shadow: 0 10px 15px -3px rgba(21, 101, 192, 0.3);
}

/* --- 8. CARDS Y CUADRÍCULAS --- */
.grid-clusters {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1rem;
}

@media (min-width: 576px) {
  .grid-clusters {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .grid-clusters {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  text-decoration: none;
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: var(--color-primary-light);
  text-decoration: none;
}

.card h3 {
  color: var(--color-primary);
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 0;
}

/* --- 9. TABLAS PREMIUM COMPATIBLES CON MÓVILES --- */
.tabla-wrapper {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  margin: 1.5rem 0 2rem;
  box-shadow: var(--shadow-card);
  -webkit-overflow-scrolling: touch;
}

.tabla-precios {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
  min-width: 550px;
}

.tabla-precios th {
  background-color: var(--color-primary);
  color: #FFFFFF;
  padding: 1rem 1.25rem;
  font-weight: 600;
}

.tabla-precios td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.tabla-precios tr:last-child td {
  border-bottom: none;
}

.tabla-precios tr:nth-child(even) td {
  background-color: var(--color-bg-alt);
}

.tabla-precios tr strong {
  color: var(--color-text);
}

/* --- 10. ACORDEÓN DE PREGUNTAS FRECUENTES (FAQ) --- */
.faq-lista {
  margin-top: 1.5rem;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-pregunta {
  width: 100%;
  background: transparent;
  border: none;
  text-align: left;
  padding: 1.25rem 0.5rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  transition: color var(--transition-fast);
}

.faq-pregunta:hover {
  color: var(--color-primary);
}

.faq-pregunta::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--color-primary);
  line-height: 1;
  transition: transform var(--transition-normal);
}

.faq-item.abierto .faq-pregunta {
  color: var(--color-primary);
}

.faq-item.abierto .faq-pregunta::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-respuesta {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height var(--transition-normal), opacity var(--transition-normal), padding var(--transition-normal);
  padding: 0 0.5rem;
}

.faq-item.abierto .faq-respuesta {
  max-height: 1000px;
  opacity: 1;
  padding: 0 0.5rem 1.5rem;
}

.faq-respuesta p:last-child {
  margin-bottom: 0;
}

/* --- 11. CALCULADORA DE COSTOS INTERACTIVA --- */
.calc-contenedor {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  margin: 2.5rem 0;
  box-shadow: var(--shadow-card);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

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

.calc-control {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.calc-label {
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.95rem;
}

.calc-select, .calc-input {
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: #FFFFFF;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.calc-select:focus, .calc-input:focus {
  border-color: var(--color-primary);
}

.calc-radio-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.calc-radio {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

.calc-radio input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

.calc-resultado {
  background-color: #FFFFFF;
  border: 2px dashed var(--color-primary-light);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.calc-resultado-monto {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
  font-family: var(--font-mono);
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

.calc-nota {
  font-size: 0.78rem;
  color: var(--color-text-subtle);
  margin-top: 1rem;
  line-height: 1.5;
}

/* --- 12. BUSCADOR SIMULADO INTERACTIVO (MOCK TOOL) --- */
.buscador-simulado {
  background-color: var(--color-primary-subtle);
  border: 2px solid var(--color-primary-light);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  margin: 2.5rem 0;
  box-shadow: var(--shadow-card);
}

.buscador-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 1.5rem;
}

.buscador-tab {
  padding: 0.75rem 1.25rem;
  font-weight: 600;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-muted);
  border-bottom: 3px solid transparent;
  transition: all var(--transition-fast);
}

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

.buscador-tab.activo {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.buscador-pane {
  display: none;
}

.buscador-pane.activo {
  display: block;
}

.buscador-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 576px) {
  .buscador-form.horizontal {
    grid-template-columns: 1fr auto;
    align-items: end;
  }
}

.buscador-loader {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 0;
  text-align: center;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--color-primary-light);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.buscador-resultados {
  display: none;
  margin-top: 2rem;
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
  animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.buscador-resultados-header {
  border-bottom: 2px solid var(--color-primary-light);
  padding-bottom: 0.75rem;
  margin-bottom: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.badge-oficial {
  background-color: var(--color-success-bg);
  color: var(--color-success);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.resultado-datos {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 576px) {
  .resultado-datos {
    grid-template-columns: 1fr 1fr;
  }
}

.dato-item {
  display: flex;
  flex-direction: column;
}

.dato-label {
  font-size: 0.78rem;
  color: var(--color-text-subtle);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.dato-valor {
  font-size: 0.95rem;
  color: var(--color-text);
  font-weight: 600;
}

.dato-valor.mono {
  font-family: var(--font-mono);
  font-size: 1rem;
}

.disclaimer-buscador {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  background-color: var(--color-bg-alt);
  padding: 1rem;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--color-primary);
  margin-bottom: 1.5rem;
}

/* --- 13. MENÚ DE ENLACES INTERNOS (BREADCRUMB COMPLEMENTO) --- */
.bloque-internos {
  background-color: var(--color-primary-subtle);
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin: 3rem 0;
}

.bloque-internos h3 {
  color: var(--color-primary);
  font-size: 1.15rem;
  margin-top: 0;
  margin-bottom: 1rem;
}

.bloque-internos ul {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  list-style: none;
  padding-left: 0;
}

@media (min-width: 600px) {
  .bloque-internos ul {
    grid-template-columns: repeat(2, 1fr);
  }
}

.bloque-internos li a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

.bloque-internos li a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

/* --- 14. FOOTER O PIE DE PÁGINA --- */
.site-footer {
  background-color: #111827; /* Gris muy oscuro tipo pizarra */
  color: #D1D5DB;
  padding: 4.5rem 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  padding-bottom: 4rem;
}

@media (min-width: 600px) {
  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .footer-inner {
    grid-template-columns: 2.2fr 1fr 1fr 1fr;
  }
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  position: relative;
  display: inline-block;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 30px;
  height: 2px;
  background-color: var(--color-primary);
}

.footer-col p {
  font-size: 0.88rem;
  line-height: 1.6;
  color: #9CA3AF;
  margin-top: 1rem;
}

.footer-col ul {
  list-style: none;
  padding-left: 0;
}

.footer-col li {
  margin-bottom: 0.75rem;
  font-size: 0.88rem;
}

.footer-col li a {
  color: #9CA3AF;
  transition: color var(--transition-fast);
}

.footer-col li a:hover {
  color: #FFFFFF;
  text-decoration: none;
}

.footer-bottom {
  background-color: #030712;
  text-align: center;
  padding: 1.5rem 0;
  font-size: 0.82rem;
  color: #6B7280;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-legal-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
  padding: 0 1rem;
}

.footer-legal-links a {
  color: #9CA3AF;
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.footer-legal-links a:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

/* --- 15. SOPORTE DE MEDIA QUERIES DE MÓVIL --- */
@media (max-width: 767px) {
  .nav-lista {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-primary);
    padding: 1.5rem;
    gap: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    border-top: 1px solid rgba(255,255,255,0.1);
  }
  
  .nav-lista.abierto {
    display: flex;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-lista > li > a {
    display: block;
    padding: 0.5rem 1rem;
  }
  
  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    display: none;
    transform: none;
    background-color: rgba(255, 255, 255, 0.05);
    border: none;
    box-shadow: none;
    margin-top: 0.5rem;
    padding-left: 1rem;
  }
  
  .has-dropdown:hover .dropdown,
  .has-dropdown:focus-within .dropdown {
    display: block;
  }
  
  .dropdown li a {
    color: rgba(255, 255, 255, 0.9);
  }
  
  .dropdown li a:hover {
    background-color: transparent;
    color: #FFFFFF;
    text-decoration: underline;
  }
}

/* --- 16. SOPORTE DE FORMULARIOS RESPONSIVOS --- */
.form-row-2col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 576px) {
  .form-row-2col {
    grid-template-columns: 1fr 1fr;
  }
}