/* ==========================================================================
   SABICON — Servicios Contables Sabillón Peña
   Sistema de Diseño y Estilos Globales
   Optimizado para Alto Rendimiento, Accesibilidad (WCAG 2.1 AA) y SEO
   ========================================================================== */

:root {
  /* Paleta Corporativa Oficial */
  --color-primary: #0f2b48;
  --color-primary-light: #1b4570;
  --color-primary-dark: #0a1c30;
  --color-primary-subtle: #edf4fa;

  --color-accent: #059669;
  --color-accent-light: #10b981;
  --color-accent-dark: #047857;
  --color-accent-subtle: #ecfdf5;

  --color-warning: #d97706;
  --color-warning-subtle: #fffbeb;

  --color-text-main: #1e293b;
  --color-text-muted: #475569;
  --color-text-light: #64748b;
  --color-text-white: #ffffff;

  --color-bg-body: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-card: #ffffff;
  --color-border: #e2e8f0;
  --color-border-focus: #0f2b48;

  /* Sombras Modernas y Suaves */
  --shadow-xs: 0 1px 2px 0 rgba(15, 43, 72, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(15, 43, 72, 0.08), 0 1px 2px -1px rgba(15, 43, 72, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(15, 43, 72, 0.08), 0 2px 4px -2px rgba(15, 43, 72, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(15, 43, 72, 0.08), 0 4px 6px -4px rgba(15, 43, 72, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(15, 43, 72, 0.1), 0 8px 10px -6px rgba(15, 43, 72, 0.05);

  /* Tipografía y Espaciado */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  --container-max: 1200px;
  --transition-fast: 0.18s ease-in-out;
  --transition-normal: 0.28s ease-in-out;
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-main);
  background-color: var(--color-bg-body);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

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

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

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

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.015em;
  margin-bottom: 0.6em;
}

h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.15rem); }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.55rem); }
h4 { font-size: 1.2rem; }
h5 { font-size: 1.05rem; }
h6 { font-size: 0.95rem; }

p {
  color: var(--color-text-muted);
  margin-bottom: 1.15rem;
}

p:last-child {
  margin-bottom: 0;
}

ul, ol {
  padding-left: 1.25rem;
  margin-bottom: 1.2rem;
  color: var(--color-text-muted);
}

li {
  margin-bottom: 0.4rem;
}

/* --------------------------------------------------------------------------
   Layout & Container
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding-top: 4.5rem;
  padding-bottom: 4.5rem;
}

.section-alt {
  background-color: var(--color-bg-alt);
}

.section-primary {
  background-color: var(--color-primary);
  color: var(--color-text-white);
}

.section-primary h1, .section-primary h2, .section-primary h3 {
  color: var(--color-text-white);
}

.section-primary p {
  color: #cbd5e1;
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  background-color: var(--color-accent-subtle);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.9rem;
}

.section-header h2 {
  margin-bottom: 0.85rem;
}

.section-header p {
  font-size: 1.1rem;
}

/* --------------------------------------------------------------------------
   Top Bar & Header
   -------------------------------------------------------------------------- */
.topbar {
  background-color: var(--color-primary-dark);
  color: #94a3b8;
  font-size: 0.85rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.topbar-info, .topbar-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.topbar-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #cbd5e1;
}

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

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: #ffffff;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

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

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.brand-tagline {
  font-size: 0.7rem;
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* Navegación Desktop */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Ocultar el botón CTA de menú móvil en vista desktop */
.nav-menu .mobile-cta,
.mobile-cta {
  display: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-main);
  padding: 0.5rem 0.2rem;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-accent);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-accent);
  border-radius: var(--radius-full);
}

/* Dropdown Menu */
.nav-item-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 270px;
  background-color: #ffffff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
  padding: 0.6rem 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 1010;
}

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

.nav-dropdown-item a {
  display: block;
  padding: 0.55rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-main);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-dropdown-item a:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-accent);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Hamburguesa móvil */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--color-primary);
}

.nav-toggle svg {
  width: 28px;
  height: 28px;
}

/* --------------------------------------------------------------------------
   Botones
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  line-height: 1.25;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background-color: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
  background-color: var(--color-primary);
  color: #ffffff;
}

.btn-outline-white {
  background-color: transparent;
  color: #ffffff;
  border-color: #ffffff;
}

.btn-outline-white:hover {
  background-color: #ffffff;
  color: var(--color-primary);
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.95rem 1.85rem;
  font-size: 1.05rem;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  background: linear-gradient(135deg, #0b1f36 0%, #0f2b48 50%, #173d66 100%);
  color: #ffffff;
  padding: 5rem 0 5.5rem 0;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 48px;
  background: linear-gradient(to top, rgba(0,0,0,0.08), transparent);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #6ee7b7;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
}

.hero-title {
  color: #ffffff;
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.025em;
  margin-bottom: 1.25rem;
}

.hero-title span {
  color: #34d399;
}

.hero-description {
  font-size: 1.15rem;
  color: #e2e8f0;
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-features {
  display: flex;
  gap: 1.75rem;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 1.75rem;
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: #cbd5e1;
  font-weight: 500;
}

.hero-feature-item svg {
  color: #34d399;
  flex-shrink: 0;
}

/* Tarjeta rápida en el Hero */
.hero-card {
  background-color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  box-shadow: var(--shadow-xl);
  color: var(--color-text-main);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-card-header {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1.25rem;
  margin-bottom: 1.5rem;
}

.hero-card-title {
  font-size: 1.25rem;
  color: var(--color-primary);
  margin-bottom: 0.35rem;
}

.hero-card-subtitle {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.hero-card-list {
  list-style: none;
  padding: 0;
  margin-bottom: 1.75rem;
}

.hero-card-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.92rem;
  color: var(--color-text-main);
  margin-bottom: 0.9rem;
}

.hero-card-list svg {
  color: var(--color-accent);
  margin-top: 2px;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Tarjetas de Servicios y Categorías
   -------------------------------------------------------------------------- */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

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

.service-card {
  background-color: var(--color-bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 2rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: #cbd5e1;
  box-shadow: var(--shadow-lg);
}

.service-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-subtle);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.35rem;
  transition: all var(--transition-fast);
}

.service-card:hover .service-icon-box {
  background-color: var(--color-accent-subtle);
  color: var(--color-accent);
}

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

.service-card-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.service-benefit {
  background-color: var(--color-bg-alt);
  border-left: 3px solid var(--color-accent);
  padding: 0.65rem 0.85rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.85rem;
  color: var(--color-text-main);
  margin-bottom: 1.35rem;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: auto;
}

.service-card:hover .service-link {
  color: var(--color-accent);
}

.service-link svg {
  transition: transform var(--transition-fast);
}

.service-card:hover .service-link svg {
  transform: translateX(4px);
}

/* Categoría de Servicios Block */
.category-block {
  margin-bottom: 4rem;
}

.category-block:last-child {
  margin-bottom: 0;
}

.category-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-border);
}

.category-header h3 {
  margin-bottom: 0;
  font-size: 1.5rem;
}

.category-pill {
  font-size: 0.8rem;
  font-weight: 700;
  background-color: var(--color-primary-subtle);
  color: var(--color-primary);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   Proceso de Trabajo (5 Pasos)
   -------------------------------------------------------------------------- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
  position: relative;
}

.process-step {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.25rem;
  position: relative;
  text-align: center;
  transition: transform var(--transition-normal);
}

.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent-light);
}

.process-number {
  width: 38px;
  height: 38px;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem auto;
}

.process-step:hover .process-number {
  background-color: var(--color-accent);
}

.process-title {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.process-desc {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Público Objetivo
   -------------------------------------------------------------------------- */
.audience-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 2rem;
  transition: all var(--transition-fast);
}

.audience-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.audience-icon {
  width: 48px;
  height: 48px;
  background-color: var(--color-accent-subtle);
  color: var(--color-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.audience-title {
  font-size: 1.2rem;
  margin-bottom: 0.65rem;
}

.audience-desc {
  font-size: 0.92rem;
  margin-bottom: 1rem;
}

.audience-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.audience-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--color-text-main);
  margin-bottom: 0.4rem;
}

.audience-list svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Acordeón de Preguntas Frecuentes (FAQ)
   -------------------------------------------------------------------------- */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  background-color: #ffffff;
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-icon {
  flex-shrink: 0;
  transition: transform var(--transition-normal);
  color: var(--color-text-light);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--color-accent);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) ease-out, padding var(--transition-normal);
  padding: 0 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.5rem 1.35rem 1.5rem;
}

/* --------------------------------------------------------------------------
   Formularios
   -------------------------------------------------------------------------- */
.form-card {
  background-color: #ffffff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.35rem;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-main);
  margin-bottom: 0.45rem;
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--color-text-main);
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.15);
  outline: none;
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

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

.form-hint {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 0.35rem;
}

.form-alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  display: none;
  font-size: 0.92rem;
}

.form-alert.success {
  background-color: var(--color-accent-subtle);
  border: 1px solid var(--color-accent-light);
  color: var(--color-accent-dark);
}

.form-alert.error {
  background-color: #fef2f2;
  border: 1px solid #f87171;
  color: #991b1b;
}

/* --------------------------------------------------------------------------
   Breadcrumbs
   -------------------------------------------------------------------------- */
.breadcrumb-wrap {
  background-color: var(--color-bg-alt);
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border);
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.88rem;
  flex-wrap: wrap;
}

.breadcrumbs li {
  margin-bottom: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumbs li::after {
  content: '/';
  color: var(--color-text-light);
}

.breadcrumbs li:last-child::after {
  content: '';
}

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

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

.breadcrumbs span[aria-current="page"] {
  color: var(--color-primary);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   CTA Banner
   -------------------------------------------------------------------------- */
.cta-banner {
  background: linear-gradient(135deg, #0f2b48 0%, #153e66 100%);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 3.5rem 2.5rem;
  text-align: center;
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.cta-banner h2 {
  color: #ffffff;
  margin-bottom: 0.85rem;
}

.cta-banner p {
  color: #cbd5e1;
  max-width: 680px;
  margin: 0 auto 2rem auto;
  font-size: 1.15rem;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   WhatsApp Flotante
   -------------------------------------------------------------------------- */
.wa-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.wa-btn {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background-color: #25d366;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.45);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.wa-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
  color: #ffffff;
}

.wa-btn svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

.wa-tooltip {
  background-color: var(--color-primary-dark);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateX(10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.wa-float:hover .wa-tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background-color: #0b1f34;
  color: #94a3b8;
  padding-top: 4.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1.35rem;
  position: relative;
  padding-bottom: 0.5rem;
}

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

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.6;
  color: #94a3b8;
  margin-bottom: 1.5rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: #cbd5e1;
  font-size: 0.9rem;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  display: inline-block;
}

.footer-links a:hover {
  color: #34d399;
  padding-left: 4px;
}

.footer-contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin-bottom: 0.85rem;
  font-size: 0.9rem;
  color: #cbd5e1;
}

.footer-contact-list svg {
  color: #34d399;
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.75rem 0;
  font-size: 0.85rem;
  color: #64748b;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* --------------------------------------------------------------------------
   Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .nav-menu {
    gap: 1.1rem;
  }
  .nav-link {
    font-size: 0.9rem;
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 860px) {
  .topbar {
    display: none;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .nav-toggle {
    display: block;
  }
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: #ffffff;
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem;
    gap: 0;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-lg);
  }
  .nav-menu.open {
    transform: translateX(0);
  }
  .nav-menu li {
    width: 100%;
    border-bottom: 1px solid var(--color-border);
  }
  .nav-link {
    display: block;
    padding: 1rem 0;
    font-size: 1.05rem;
  }
  .nav-item-dropdown .nav-dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: 1rem;
    display: none;
  }
  .nav-item-dropdown.active .nav-dropdown-menu {
    display: block;
  }
  .header-cta .btn {
    display: none;
  }
  .nav-menu .mobile-cta {
    display: block;
    margin-top: 1.5rem;
    width: 100%;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .grid-4 {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .section {
    padding-top: 3.25rem;
    padding-bottom: 3.25rem;
  }
  .hero {
    padding: 3.5rem 0;
  }
  .hero-card {
    padding: 1.5rem;
  }
  .form-card {
    padding: 1.5rem;
  }
  .cta-banner {
    padding: 2.5rem 1.5rem;
  }
  .wa-tooltip {
    display: none;
  }
}