/* ==========================================================================
       1. VARIABLES Y DISEÑO DEL SISTEMA (CSS VARIABLES)
       ========================================================================== */
    :root {
      --primary-dark: #1B3A6B;
      --primary-medium: #2E6DA4;
      --accent-light: #4A90D9;
      --white: #FFFFFF;
      --gray-text: #4A5568;
      --gray-light: #718096;
      --gray-bg: #F7FAFC;
      --gray-border: #E2E8F0;
      --cta-orange: #F6890A;
      --cta-orange-hover: #E07B05;
      --footer-bg: #0F1F3D;
      
      --font-family: 'Inter', sans-serif;
      
      --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
      
      --border-radius-sm: 8px;
      --border-radius-md: 12px;
      --border-radius-lg: 20px;
      --border-radius-full: 9999px;
      
      --shadow-sm: 0 2px 4px rgba(27, 58, 107, 0.04);
      --shadow-md: 0 10px 30px -10px rgba(27, 58, 107, 0.08), 0 8px 10px -6px rgba(27, 58, 107, 0.04);
      --shadow-lg: 0 20px 40px -15px rgba(27, 58, 107, 0.12), 0 15px 15px -10px rgba(27, 58, 107, 0.06);
      --shadow-orange: 0 10px 20px -8px rgba(246, 137, 10, 0.4);
    }

    /* ==========================================================================
       2. REGLAS GENERALES Y RESET
       ========================================================================== */
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 80px; /* Compensa la altura del navbar fijo */
      font-size: 16px;
    }

    body {
      font-family: var(--font-family);
      background-color: var(--white);
      color: var(--gray-text);
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    h1, h2, h3, h4 {
      font-weight: 700;
      color: var(--primary-dark);
      line-height: 1.25;
    }

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

    ul {
      list-style: none;
    }

    img, svg {
      vertical-align: middle;
      max-width: 100%;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    section {
      padding: 100px 0;
      position: relative;
    }

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

    /* ==========================================================================
       3. UTILITIES Y BOTONES (UI ELEMENTS)
       ========================================================================== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 28px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--border-radius-md);
      transition: var(--transition-smooth);
      cursor: pointer;
      border: none;
      text-align: center;
      gap: 10px;
    }

    .btn-orange {
      background-color: var(--cta-orange);
      color: var(--white);
      box-shadow: var(--shadow-orange);
    }

    .btn-orange:hover {
      background-color: var(--cta-orange-hover);
      transform: translateY(-2px);
      box-shadow: 0 12px 24px -6px rgba(246, 137, 10, 0.5);
    }

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

    .btn-outline-white {
      background-color: transparent;
      color: var(--white);
      border: 2px solid rgba(255, 255, 255, 0.3);
    }

    .btn-outline-white:hover {
      background-color: rgba(255, 255, 255, 0.1);
      border-color: var(--white);
      transform: translateY(-2px);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      padding: 6px 16px;
      background-color: rgba(74, 144, 217, 0.15);
      color: var(--accent-light);
      border-radius: var(--border-radius-full);
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 24px;
      text-transform: uppercase;
      letter-spacing: 1px;
      border: 1px solid rgba(74, 144, 217, 0.2);
    }

    .badge-white {
      background-color: rgba(255, 255, 255, 0.1);
      color: #9EC6EE;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .section-title {
      font-size: 2.25rem;
      text-align: center;
      margin-bottom: 12px;
      font-weight: 800;
    }

    .section-title span {
      color: var(--primary-medium);
    }

    .section-subtitle {
      text-align: center;
      font-size: 1.1rem;
      color: var(--gray-light);
      max-width: 600px;
      margin: 0 auto 50px auto;
    }

    /* Animaciones Fade-In (IntersectionObserver) */
    .fade-in {
      opacity: 0;
      transform: translateY(30px);
      transition: var(--transition-slow);
    }

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

    .stagger-1 { transition-delay: 0.1s; }
    .stagger-2 { transition-delay: 0.2s; }
    .stagger-3 { transition-delay: 0.3s; }
    .stagger-4 { transition-delay: 0.4s; }
    .stagger-5 { transition-delay: 0.5s; }
    .stagger-6 { transition-delay: 0.6s; }

    /* ==========================================================================
       4. NAVBAR FIJO EN SCROLL
       ========================================================================== */
    header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 80px;
      z-index: 1000;
      background-color: transparent;
      transition: var(--transition-smooth);
      display: flex;
      align-items: center;
    }

    header.scrolled {
      background-color: rgba(15, 31, 61, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      height: 70px;
      box-shadow: 0 10px 30px rgba(15, 31, 61, 0.3);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    header.scrolled .logo-text {
      color: var(--white);
    }

    header.scrolled .nav-links a {
      color: rgba(255, 255, 255, 0.85);
    }

    header.scrolled .nav-links a:hover {
      color: var(--white);
    }

    .navbar-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
    }

    .logo-container {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .logo-icon {
      fill: #9EC6EE;
      width: 32px;
      height: 32px;
      transition: var(--transition-smooth);
    }

    header.scrolled .logo-icon {
      fill: var(--white);
    }

    .logo-text {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--white);
      letter-spacing: -0.5px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 40px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 30px;
    }

    .nav-links a {
      font-weight: 500;
      color: rgba(255, 255, 255, 0.85);
      font-size: 0.95rem;
      position: relative;
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--cta-orange);
      transition: var(--transition-smooth);
    }

    .nav-links a:hover {
      color: var(--white);
    }

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

    .nav-cta .btn {
      padding: 10px 20px;
      font-size: 0.85rem;
    }

    /* Menu Movil Hamburger Toggle */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      width: 30px;
      height: 24px;
      position: relative;
      z-index: 1100;
    }

    .mobile-menu-toggle span {
      display: block;
      width: 100%;
      height: 3px;
      background-color: var(--white);
      border-radius: 3px;
      position: absolute;
      transition: var(--transition-smooth);
    }

    header.scrolled .mobile-menu-toggle span {
      background-color: var(--white);
    }

    .mobile-menu-toggle span:nth-child(1) { top: 0; }
    .mobile-menu-toggle span:nth-child(2) { top: 10px; }
    .mobile-menu-toggle span:nth-child(3) { top: 20px; }

    .mobile-menu-toggle.active span:nth-child(1) {
      transform: translateY(10px) rotate(45deg);
    }
    .mobile-menu-toggle.active span:nth-child(2) {
      opacity: 0;
    }
    .mobile-menu-toggle.active span:nth-child(3) {
      transform: translateY(-10px) rotate(-45deg);
    }

    /* ==========================================================================
       5. HERO SECTION (2 COLUMNS WITH BUILDER PHOTO)
       ========================================================================== */
    .hero {
      background: radial-gradient(circle at 80% 20%, rgba(74, 144, 217, 0.12) 0%, transparent 60%), linear-gradient(135deg, var(--primary-dark) 0%, #0F254B 100%);
      color: var(--white);
      padding: 160px 0 100px 0;
      position: relative;
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: radial-gradient(rgba(255,255,255,0.03) 1px, transparent 0);
      background-size: 24px 24px;
      pointer-events: none;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 50px;
      align-items: center;
      position: relative;
      z-index: 5;
    }

    .hero-content {
      text-align: left;
    }

    .hero h1 {
      font-size: 3.25rem;
      font-weight: 800;
      color: var(--white);
      margin-bottom: 24px;
      letter-spacing: -1px;
      line-height: 1.15;
    }

    .hero h1 span {
      background: linear-gradient(to right, #9EC6EE, #4A90D9);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero .subtitle {
      font-size: 1.15rem;
      color: #D2E3F4;
      margin-bottom: 40px;
      font-weight: 400;
      line-height: 1.6;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      gap: 20px;
      margin-bottom: 50px;
    }

    .hero-link {
      font-size: 0.95rem;
      font-weight: 600;
      color: #9EC6EE;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-bottom: 2px solid transparent;
      padding-bottom: 2px;
    }

    .hero-link:hover {
      color: var(--white);
      border-color: var(--white);
    }

    /* Column Derecho: Imagen de Confianza */
    .hero-image-container {
      position: relative;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .hero-image-glow {
      position: absolute;
      width: 90%;
      height: 90%;
      background: radial-gradient(circle, rgba(74, 144, 217, 0.25) 0%, transparent 70%);
      filter: blur(20px);
      z-index: 1;
      pointer-events: none;
    }

    .hero-image {
      width: 100%;
      max-width: 480px;
      height: auto;
      border-radius: var(--border-radius-lg);
      border: 3px solid rgba(255, 255, 255, 0.1);
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 40px rgba(74, 144, 217, 0.15);
      z-index: 2;
      transition: var(--transition-smooth);
    }

    .hero-image:hover {
      transform: translateY(-5px);
      border-color: rgba(74, 144, 217, 0.35);
      box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.6), 0 0 50px rgba(74, 144, 217, 0.3);
    }

    /* Stats bar */
    .hero-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 40px;
    }

    .stat-item {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
    }

    .stat-icon {
      font-size: 1.8rem;
    }

    .stat-text {
      font-size: 0.95rem;
      font-weight: 600;
      color: #D2E3F4;
    }

    /* ==========================================================================
       6. SECCIÓN PROBLEMA
       ========================================================================== */
    .problem {
      background-color: var(--white);
    }

    .problem-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .problem-card {
      background-color: var(--white);
      border: 1px solid var(--gray-border);
      border-radius: var(--border-radius-lg);
      padding: 40px 32px;
      transition: var(--transition-smooth);
      position: relative;
      overflow: hidden;
    }

    .problem-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background-color: #E53E3E; /* Rojo suave para indicar problema */
      opacity: 0;
      transition: var(--transition-smooth);
    }

    .problem-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 40px -15px rgba(229, 62, 62, 0.12), var(--shadow-lg);
      border-color: rgba(229, 62, 62, 0.2);
    }

    .problem-card:hover::before {
      opacity: 1;
    }

    .problem-card-icon {
      width: 48px;
      height: 48px;
      background-color: #FED7D7;
      color: #E53E3E;
      border-radius: var(--border-radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 24px;
      font-size: 1.4rem;
    }

    .problem-card h3 {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 16px;
    }

    .problem-card p {
      color: var(--gray-text);
      font-size: 0.95rem;
      line-height: 1.6;
    }

    /* ==========================================================================
       6B. NUEVA SECCIÓN: CALCULADORA INTERACTIVA DE AHORRO / ROI
       ========================================================================== */
    .calculator-section {
      background-color: var(--primary-dark);
      color: var(--white);
      padding: 80px 0;
      background-image: radial-gradient(circle at 10% 90%, rgba(74, 144, 217, 0.08) 0%, transparent 40%);
    }

    .calculator-section .section-title {
      color: var(--white);
    }

    .calculator-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
      max-width: 1000px;
      margin: 0 auto;
    }

    .calculator-sliders {
      background-color: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--border-radius-lg);
      padding: 40px 30px;
      display: flex;
      flex-direction: column;
      gap: 30px;
    }

    .slider-group {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .slider-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.95rem;
      font-weight: 600;
    }

    .slider-header span.value {
      background-color: var(--accent-light);
      padding: 4px 12px;
      border-radius: var(--border-radius-sm);
      color: var(--white);
      font-weight: 700;
    }

    .slider-group input[type="range"] {
      -webkit-appearance: none;
      width: 100%;
      height: 6px;
      background-color: rgba(255, 255, 255, 0.2);
      border-radius: var(--border-radius-full);
      outline: none;
      cursor: pointer;
    }

    .slider-group input[type="range"]::-webkit-slider-thumb {
      -webkit-appearance: none;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background-color: var(--cta-orange);
      box-shadow: 0 0 10px rgba(0,0,0,0.3);
      cursor: pointer;
      transition: var(--transition-smooth);
    }

    .slider-group input[type="range"]::-webkit-slider-thumb:hover {
      background-color: var(--white);
      transform: scale(1.1);
    }

    .slider-group input[type="range"]::-webkit-slider-thumb:active {
      transform: scale(1.2);
      background-color: var(--white);
      box-shadow: 0 0 15px var(--cta-orange);
    }

    /* Soporte y compatibilidad del control slider en Firefox */
    .slider-group input[type="range"]::-moz-range-thumb {
      width: 20px;
      height: 20px;
      border: none;
      border-radius: 50%;
      background-color: var(--cta-orange);
      box-shadow: 0 0 10px rgba(0,0,0,0.3);
      cursor: pointer;
      transition: var(--transition-smooth);
    }

    .slider-group input[type="range"]::-moz-range-thumb:hover {
      background-color: var(--white);
      transform: scale(1.1);
    }

    .slider-group input[type="range"]::-moz-range-thumb:active {
      transform: scale(1.2);
      background-color: var(--white);
      box-shadow: 0 0 15px var(--cta-orange);
    }

    .calculator-results {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .result-card {
      background-color: var(--white);
      border-radius: var(--border-radius-lg);
      padding: 30px;
      color: var(--primary-dark);
      border-left: 6px solid var(--cta-orange);
      box-shadow: var(--shadow-lg);
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .result-card-icon {
      font-size: 2.5rem;
      background-color: rgba(246, 137, 10, 0.1);
      color: var(--cta-orange);
      width: 64px;
      height: 64px;
      border-radius: var(--border-radius-full);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .result-info h4 {
      font-size: 0.9rem;
      color: var(--gray-text);
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 4px;
    }

    .result-info .result-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1.1;
    }

    .result-info .result-number span {
      font-size: 1rem;
      color: var(--gray-text);
      font-weight: 500;
    }

    /* ==========================================================================
       7. SECCIÓN CÓMO FUNCIONA / SOLUCIÓN
       ========================================================================== */
    .solution {
      background-color: var(--gray-bg);
      border-top: 1px solid var(--gray-border);
      border-bottom: 1px solid var(--gray-border);
    }

    .solution-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 40px;
      position: relative;
    }

    .solution-card {
      background-color: var(--white);
      border-radius: var(--border-radius-lg);
      padding: 40px 32px;
      box-shadow: var(--shadow-md);
      border: 1px solid rgba(46, 109, 164, 0.05);
      position: relative;
      text-align: center;
      transition: var(--transition-smooth);
    }

    .solution-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 40px -15px rgba(46, 109, 164, 0.12), var(--shadow-lg);
      border-color: rgba(46, 109, 164, 0.2);
    }

    .step-number {
      position: absolute;
      top: -24px;
      left: 50%;
      transform: translateX(-50%);
      width: 48px;
      height: 48px;
      border-radius: var(--border-radius-full);
      background-color: var(--primary-dark);
      color: var(--white);
      font-weight: 800;
      font-size: 1.25rem;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 10px rgba(27, 58, 107, 0.2);
    }

    .solution-card-icon {
      width: 64px;
      height: 64px;
      margin: 15px auto 24px auto;
      background-color: rgba(74, 144, 217, 0.1);
      color: var(--primary-medium);
      border-radius: var(--border-radius-full);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .solution-card-icon svg {
      width: 32px;
      height: 32px;
      fill: none;
      stroke: var(--primary-medium);
      stroke-width: 2;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .solution-card h3 {
      font-size: 1.25rem;
      margin-bottom: 12px;
    }

    .solution-card p {
      font-size: 0.95rem;
      color: var(--gray-text);
    }

    /* ==========================================================================
       8. SECCIÓN FUNCIONES CLAVE
       ========================================================================== */
    .features {
      background-color: var(--white);
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .feature-card {
      background-color: var(--white);
      border: 1px solid var(--gray-border);
      border-radius: var(--border-radius-lg);
      padding: 32px;
      transition: var(--transition-smooth);
    }

    .feature-card:hover {
      border-color: var(--accent-light);
      box-shadow: 0 20px 40px -15px rgba(74, 144, 217, 0.12), var(--shadow-lg);
      transform: translateY(-8px);
    }

    .feature-icon-container {
      width: 50px;
      height: 50px;
      border-radius: var(--border-radius-md);
      background-color: rgba(74, 144, 217, 0.08);
      color: var(--primary-medium);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      transition: var(--transition-smooth);
    }

    .feature-card:hover .feature-icon-container {
      background-color: var(--primary-dark);
      color: var(--white);
    }

    .feature-icon-container svg {
      width: 24px;
      height: 24px;
      fill: none;
      stroke: currentColor;
      stroke-width: 2;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .feature-card h3 {
      font-size: 1.15rem;
      margin-bottom: 12px;
      font-weight: 700;
    }

    .feature-card p {
      font-size: 0.9rem;
      color: var(--gray-text);
      line-height: 1.5;
    }

    /* ==========================================================================
       9. SECCIÓN PRECIOS
       ========================================================================== */
    .pricing {
      background: linear-gradient(135deg, var(--primary-dark) 0%, #0F254B 100%);
      color: var(--white);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .pricing .section-title {
      color: var(--white);
    }

    /* Toggle mensual / anual */
    .billing-toggle-wrapper {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 14px;
      margin-bottom: 44px;
    }

    .billing-label {
      font-size: 0.95rem;
      font-weight: 600;
      color: #9EC6EE;
      cursor: pointer;
      transition: var(--transition-smooth);
    }

    .billing-label.active {
      color: var(--white);
    }

    .billing-switch {
      position: relative;
      width: 52px;
      height: 28px;
      cursor: pointer;
    }

    .billing-switch input {
      opacity: 0;
      width: 0;
      height: 0;
      position: absolute;
    }

    .billing-switch-track {
      position: absolute;
      inset: 0;
      background-color: rgba(255,255,255,0.15);
      border-radius: 14px;
      transition: var(--transition-smooth);
      border: 1px solid rgba(255,255,255,0.2);
    }

    .billing-switch input:checked + .billing-switch-track {
      background-color: var(--cta-orange);
      border-color: var(--cta-orange);
    }

    .billing-switch-thumb {
      position: absolute;
      top: 3px;
      left: 3px;
      width: 20px;
      height: 20px;
      background-color: var(--white);
      border-radius: 50%;
      transition: var(--transition-smooth);
      box-shadow: 0 1px 4px rgba(0,0,0,0.25);
    }

    .billing-switch input:checked ~ .billing-switch-thumb {
      transform: translateX(24px);
    }

    .billing-save-badge {
      background-color: rgba(72, 187, 120, 0.2);
      color: #68D391;
      border: 1px solid rgba(72, 187, 120, 0.3);
      border-radius: var(--border-radius-full);
      padding: 3px 10px;
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 0.5px;
    }

    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      align-items: stretch;
      max-width: 1050px;
      margin: 0 auto 50px auto;
    }

    .price-card {
      background-color: var(--white);
      color: var(--gray-text);
      border-radius: var(--border-radius-lg);
      padding: 45px 35px;
      display: flex;
      flex-direction: column;
      transition: var(--transition-smooth);
      position: relative;
      border: 1px solid var(--gray-border);
      box-shadow: var(--shadow-lg);
    }

    .price-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 40px -15px rgba(27, 58, 107, 0.15), var(--shadow-lg);
    }

    /* Destacado Pro Card */
    .price-card.featured {
      border: 3px solid var(--cta-orange);
      transform: scale(1.03);
      z-index: 10;
    }

    .price-card.featured:hover {
      transform: scale(1.03) translateY(-8px);
      box-shadow: 0 30px 60px -15px rgba(246, 137, 10, 0.25);
    }

    .popular-badge {
      position: absolute;
      top: -15px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--cta-orange);
      color: var(--white);
      padding: 6px 16px;
      border-radius: var(--border-radius-full);
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      box-shadow: 0 4px 8px rgba(246, 137, 10, 0.3);
      white-space: nowrap;
    }

    .price-header {
      margin-bottom: 30px;
      text-align: center;
    }

    .price-name {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary-dark);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .price-value {
      font-size: 2.75rem;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1;
    }

    .price-value span {
      font-size: 1rem;
      color: var(--gray-text);
      font-weight: 500;
    }

    .price-annual-note {
      font-size: 0.82rem;
      color: var(--gray-text);
      margin-top: 6px;
    }

    .price-features {
      margin-bottom: 35px;
      flex-grow: 1;
    }

    .price-features li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.9rem;
      margin-bottom: 16px;
      color: var(--gray-text);
      line-height: 1.4;
    }

    .price-features li svg {
      width: 18px;
      height: 18px;
      fill: none;
      stroke: #48BB78; /* Verde para check */
      stroke-width: 2.5;
      stroke-linecap: round;
      stroke-linejoin: round;
      flex-shrink: 0;
      margin-top: 2px;
    }

    .price-cta .btn {
      width: 100%;
    }

    .price-cta .btn-muted {
      background-color: var(--primary-dark);
      color: var(--white);
    }

    .price-cta .btn-muted:hover {
      background-color: var(--primary-medium);
      transform: translateY(-2px);
    }

    .pricing-guarantees {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 30px;
      flex-wrap: wrap;
      text-align: center;
      color: #9EC6EE;
      font-size: 0.95rem;
      font-weight: 500;
    }

    .pricing-guarantees span {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    /* ==========================================================================
       10. SECCIÓN TESTIMONIO
       ========================================================================== */
    .testimonial {
      background-color: var(--white);
      border-bottom: 1px solid var(--gray-border);
    }

    .testimonial-container {
      max-width: 800px;
      margin: 0 auto;
      text-align: center;
      box-shadow: var(--shadow-lg);
      padding: 60px 48px;
      border-radius: var(--border-radius-lg);
      border: 1px solid var(--gray-border);
      position: relative;
    }

    .testimonial-quote-icon {
      position: absolute;
      top: 30px;
      left: 40px;
      font-size: 6rem;
      line-height: 1;
      color: rgba(74, 144, 217, 0.08);
      font-family: Georgia, serif;
      pointer-events: none;
    }

    .testimonial-stars {
      display: flex;
      justify-content: center;
      gap: 4px;
      margin-bottom: 24px;
    }

    .testimonial-stars svg {
      width: 24px;
      height: 24px;
      fill: #ED8936; /* Color estrella dorada */
    }

    .testimonial-text {
      font-size: 1.25rem;
      font-weight: 500;
      color: var(--primary-dark);
      line-height: 1.7;
      margin-bottom: 30px;
      font-style: italic;
    }

    .testimonial-author {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
    }

    .avatar {
      width: 56px;
      height: 56px;
      border-radius: var(--border-radius-full);
      background: linear-gradient(135deg, var(--primary-medium) 0%, var(--accent-light) 100%);
      color: var(--white);
      font-weight: 700;
      font-size: 1.2rem;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 10px rgba(46, 109, 164, 0.2);
    }

    .author-info {
      text-align: left;
    }

    .author-name {
      font-size: 1rem;
      font-weight: 700;
      color: var(--primary-dark);
    }

    .author-company {
      font-size: 0.85rem;
      color: var(--gray-text);
    }

    /* ==========================================================================
       11. SECCIÓN PREGUNTAS FRECUENTES (SEO & GEO ENHANCEMENT)
       ========================================================================== */
    .faq-section {
      background-color: var(--white);
      border-bottom: 1px solid var(--gray-border);
    }

    .faq-grid {
      max-width: 800px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .faq-item {
      border: 1px solid var(--gray-border);
      border-radius: var(--border-radius-md);
      background-color: var(--white);
      overflow: hidden;
      transition: var(--transition-smooth);
    }

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

    .faq-question {
      width: 100%;
      padding: 22px 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: none;
      border: none;
      cursor: pointer;
      text-align: left;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary-dark);
      transition: var(--transition-smooth);
      gap: 15px;
      outline: none;
    }

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

    .faq-chevron {
      width: 20px;
      height: 20px;
      fill: none;
      stroke: currentColor;
      stroke-width: 2.5;
      stroke-linecap: round;
      stroke-linejoin: round;
      transition: transform 0.3s ease;
      flex-shrink: 0;
    }

    .faq-item.active .faq-chevron {
      transform: rotate(180deg);
      stroke: var(--cta-orange);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background-color: var(--gray-bg);
      border-top: 0 solid var(--gray-border);
    }

    .faq-answer p {
      padding: 24px 28px;
      font-size: 0.95rem;
      color: #2D3748;
      line-height: 1.6;
    }

    .faq-item.active .faq-answer {
      border-top: 1px solid var(--gray-border);
    }

    /* ==========================================================================
       12. FORMULARIO DE CAPTACIÓN (CONVERSIÓN DIRECTA)
       ========================================================================== */
    .contact-section {
      background-color: var(--gray-bg);
      border-bottom: 1px solid var(--gray-border);
    }

    .contact-container {
      max-width: 650px;
      margin: 0 auto;
    }

    .contact-header {
      text-align: center;
      margin-bottom: 40px;
    }

    .contact-header h2 {
      font-size: 2.25rem;
      margin-bottom: 12px;
      font-weight: 800;
    }

    .contact-header p {
      font-size: 1.05rem;
      color: var(--gray-text);
    }

    .form-wrapper {
      background-color: var(--white);
      border-radius: var(--border-radius-lg);
      padding: 48px;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--gray-border);
      position: relative;
      overflow: hidden;
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 24px;
      transition: opacity 0.3s ease;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
      position: relative;
    }

    .form-group label {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--primary-dark);
    }

    .form-group input, 
    .form-group select {
      width: 100%;
      padding: 14px 16px;
      border: 1.5px solid var(--gray-border);
      border-radius: var(--border-radius-md);
      font-family: var(--font-family);
      font-size: 0.95rem;
      color: var(--gray-text);
      transition: var(--transition-smooth);
      background-color: var(--white);
      outline: none;
    }

    .form-group input::placeholder {
      color: #A0AEC0;
    }

    .form-group input:focus, 
    .form-group select:focus {
      border-color: var(--primary-medium);
      box-shadow: 0 0 0 3px rgba(46, 109, 164, 0.15);
    }

    .form-help {
      font-size: 0.8rem;
      color: var(--gray-text);
    }

    .contact-form .btn-orange {
      padding: 16px;
      font-size: 1.05rem;
      margin-top: 10px;
    }

    .privacy-notice {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 0.8rem;
      color: var(--gray-text);
      text-align: center;
      margin-top: 20px;
    }

    .privacy-notice svg {
      width: 14px;
      height: 14px;
      fill: none;
      stroke: currentColor;
      stroke-width: 2;
    }

    /* Panel de Éxito */
    .success-panel {
      display: none;
      text-align: center;
      flex-direction: column;
      align-items: center;
      animation: fadeIn 0.5s ease forwards;
      padding: 20px 0;
    }

    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(15px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .success-icon-container {
      width: 80px;
      height: 80px;
      background-color: #C6F6D5;
      color: #38A169;
      border-radius: var(--border-radius-full);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 24px;
      box-shadow: 0 8px 20px rgba(56, 161, 105, 0.15);
    }

    .success-icon-container svg {
      width: 40px;
      height: 40px;
      fill: none;
      stroke: currentColor;
      stroke-width: 3;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .success-panel h3 {
      font-size: 1.75rem;
      margin-bottom: 16px;
      font-weight: 800;
    }

    .success-panel p {
      font-size: 1rem;
      color: var(--gray-text);
      max-width: 480px;
      margin: 0 auto 30px auto;
      line-height: 1.6;
    }

    .success-actions {
      display: flex;
      flex-direction: column;
      width: 100%;
      max-width: 400px;
      gap: 12px;
    }

    .btn-whatsapp {
      background-color: #25D366;
      color: var(--white);
      font-weight: 600;
      box-shadow: 0 10px 20px -8px rgba(37, 211, 102, 0.4);
    }

    .btn-whatsapp:hover {
      background-color: #20BA56;
      transform: translateY(-2px);
      box-shadow: 0 12px 24px -6px rgba(37, 211, 102, 0.5);
    }

    /* Toast Notification social proof */
    .toast-notif {
      position: fixed;
      bottom: -100px;
      left: 20px;
      background-color: var(--primary-dark);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--border-radius-md);
      padding: 16px 20px;
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--white);
      box-shadow: var(--shadow-lg);
      z-index: 2000;
      transition: bottom 0.5s cubic-bezier(0.4, 0, 0.2, 1);
      font-size: 0.85rem;
      max-width: 320px;
    }

    .toast-notif.show {
      bottom: 20px;
    }

    .toast-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background-color: #48BB78;
      flex-shrink: 0;
      animation: pulse-dot 1.5s infinite;
    }

    @keyframes pulse-dot {
      0% { transform: scale(0.9); opacity: 0.6; }
      50% { transform: scale(1.2); opacity: 1; }
      100% { transform: scale(0.9); opacity: 0.6; }
    }

    /* ==========================================================================
       13. FOOTER (FONDO AZUL OSCURO MUY OSCURO)
       ========================================================================== */
    footer {
      background-color: var(--footer-bg);
      color: #9EC6EE;
      padding: 60px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    .footer-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 30px;
    }

    .footer-left {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .footer-logo-icon {
      fill: var(--white);
      width: 28px;
      height: 28px;
    }

    .footer-logo-text {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--white);
      letter-spacing: -0.5px;
    }

    .footer-nav {
      display: flex;
      gap: 24px;
    }

    .footer-nav a {
      font-size: 0.9rem;
      color: #A0AEC0;
    }

    .footer-nav a:hover {
      color: var(--white);
    }

    .footer-copyright {
      font-size: 0.85rem;
      color: #A0AEC0;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 30px;
      margin-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 15px;
    }

    .footer-span-credits {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* ==========================================================================
       14. RESPONSIVE DESIGN (MOBILE FIRST)
       ========================================================================== */
    @media (max-width: 1024px) {
      .hero {
        padding: 130px 0 80px 0;
      }

      .hero h1 {
        font-size: 2.75rem;
      }

      .hero .subtitle {
        font-size: 1.1rem;
      }

      .hero-actions {
        justify-content: center;
      }

      .hero-stats {
        max-width: 600px;
      }

      .calculator-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }

      .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
        max-width: 960px;
      }

      .price-card {
        padding: 35px 20px;
      }

      .price-card.featured {
        transform: scale(1.02);
      }
      .price-card.featured:hover {
        transform: scale(1.02) translateY(-8px);
      }
    }

    @media (max-width: 900px) {
      section {
        padding: 70px 0;
      }

      header {
        height: 70px;
      }

      .mobile-menu-toggle {
        display: block;
      }

      .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: rgba(15, 31, 61, 0.96);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        flex-direction: column;
        justify-content: center;
        gap: 40px;
        padding: 40px;
        transform: translateX(100%);
        transition: var(--transition-smooth);
        z-index: 1050;
        overflow-y: auto;
      }

      .nav-menu.active {
        transform: translateX(0);
      }

      .nav-links {
        flex-direction: column;
        gap: 30px;
        width: 100%;
      }

      .nav-links a {
        color: var(--white);
        font-size: 1.25rem;
      }

      .nav-cta {
        width: 100%;
        display: flex;
        justify-content: center;
      }

      .nav-cta .btn {
        width: 100%;
        max-width: 300px;
        padding: 14px 28px;
        font-size: 1rem;
      }

      .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .hero-content {
        text-align: center;
      }

      .hero h1 {
        font-size: 2.25rem;
      }

      .hero .subtitle {
        font-size: 1.05rem;
        margin-bottom: 30px;
      }

      .hero-actions {
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 15px;
        margin-bottom: 40px;
      }

      .hero-actions .btn {
        width: 100%;
        max-width: 320px;
      }

      .hero-image {
        max-width: 360px;
      }

      .hero-stats {
        grid-template-columns: 1fr;
        gap: 20px;
        padding-top: 40px;
      }

      .stat-item {
        align-items: center;
        text-align: center;
      }

      .problem-grid,
      .solution-grid,
      .features-grid,
      .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 450px;
        margin-left: auto;
        margin-right: auto;
      }

      .price-card.featured {
        transform: scale(1);
      }
      .price-card.featured:hover {
        transform: translateY(-8px);
      }

      .price-card {
        padding: 35px 24px;
      }

      .testimonial-container {
        padding: 40px 24px;
      }

      .testimonial-text {
        font-size: 1.1rem;
      }

      .form-wrapper {
        padding: 30px 20px;
      }

      .contact-header h2 {
        font-size: 1.75rem;
      }

      .footer-container {
        flex-direction: column;
        align-items: flex-start;
      }

      .footer-nav {
        flex-direction: column;
        gap: 15px;
      }

      .toast-notif {
        left: 16px;
        right: 16px;
        bottom: -80px;
        max-width: calc(100% - 32px);
        padding: 10px 14px;
        font-size: 0.8rem;
        gap: 8px;
        border-radius: var(--border-radius-sm);
      }

      .toast-notif.show {
        bottom: 16px;
      }
    }