/*
  Archivo: index.css
  Descripción: Hoja de estilos principal para la landing page de Reku. Implementa el sistema de diseño (variables HSL, glassmorphism, gradientes modernos y animaciones premium), estilos responsivos y corrección de colores del select. Con mini-cards de sectores completamente horizontales sin rotación.
  Fecha de última modificación: 2026-07-23
  Autor: Antigravity
*/

/* ---------------------------------------------------------
   1. VARIABLES Y SISTEMA DE DISEÑO
--------------------------------------------------------- */
:root {
    /* Colores */
    --color-primary-hue: 14;
    --color-primary-sat: 96%;
    --color-primary-light: 51%;
    --color-primary: hsl(var(--color-primary-hue), var(--color-primary-sat), var(--color-primary-light)); /* #fb420a */
    --color-primary-hover: hsl(var(--color-primary-hue), var(--color-primary-sat), 43%);
    --color-primary-glow: hsla(var(--color-primary-hue), var(--color-primary-sat), var(--color-primary-light), 0.25);
    
    --color-secondary-hue: 262;
    --color-secondary: hsl(var(--color-secondary-hue), 83%, 58%); /* #7c3aed */
    --color-secondary-glow: hsla(var(--color-secondary-hue), 83%, 58%, 0.25);

    --color-dark-bg: hsl(222, 47%, 9%); /* #0b0f19 */
    --color-dark-surface: hsl(222, 47%, 13%); /* #121826 */
    --color-dark-card: hsl(222, 47%, 16%); /* #172030 */
    
    --color-accent-success: hsl(150, 84%, 37%); /* #10b981 */
    --color-accent-error: hsl(0, 84%, 60%); /* #ef4444 */
    
    --color-text-light: hsl(210, 40%, 98%); /* #f8fafc */
    --color-text-muted: hsl(215, 25%, 68%); /* #94a3b8 */
    
    --glass-bg: rgba(18, 24, 38, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-glow: rgba(255, 255, 255, 0.02);

    /* Tipografías */
    --font-heading: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    
    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 32px var(--color-primary-glow);
    
    /* Bordes y Transiciones */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------------------------------------------------------
   2. REINICIO GENERAL Y AJUSTES BÁSICOS
--------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    background-color: var(--color-dark-bg);
    color: var(--color-text-light);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-dark-bg);
}
::-webkit-scrollbar-thumb {
    background: var(--color-dark-card);
    border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* ---------------------------------------------------------
   3. ESTILOS DE UTILIDAD
--------------------------------------------------------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.highlight { color: var(--color-primary); }

.gradient-text {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Esferas de luz decorativas */
.glow-effect {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.45;
}

/* Botones Premium */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    text-decoration: none;
    padding: 14px 28px;
    border-radius: 50px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    gap: 8px;
    text-align: center;
}

.btn-sm {
    padding: 10px 20px;
    font-size: 0.9rem;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), hsl(var(--color-primary-hue), var(--color-primary-sat), 45%));
    color: var(--color-text-light);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px hsla(var(--color-primary-hue), var(--color-primary-sat), var(--color-primary-light), 0.4);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-text-light);
    border-color: var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-light);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-text-light);
    transform: translateY(-2px);
}

.btn-outline-white {
    background: transparent;
    color: var(--color-text-light);
    border-color: var(--color-text-light);
}

.btn-outline-white:hover {
    background: var(--color-text-light);
    color: var(--color-dark-bg);
    transform: translateY(-2px);
}

.btn-block {
    display: flex;
    width: 100%;
}

.badge {
    display: inline-block;
    background: hsla(var(--color-primary-hue), var(--color-primary-sat), var(--color-primary-light), 0.12);
    border: 1px solid var(--color-primary-glow);
    color: var(--color-primary);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 24px;
    text-transform: uppercase;
}

/* ---------------------------------------------------------
   4. ESTRUCTURA DE CABECERA / NAV
--------------------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: var(--glass-bg);
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all var(--transition-normal);
}

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

.logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.7rem;
    color: var(--color-text-light);
    text-decoration: none;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
}

.logo-img {
    height: 30px;
    width: auto;
    display: block;
    transition: transform var(--transition-fast);
}

.logo:hover .logo-img {
    transform: scale(1.03);
}

.logo-accent {
    color: var(--color-primary);
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text-light);
}

.btn-login {
    color: var(--color-text-muted);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    transition: color var(--transition-fast);
    padding: 10px 16px;
    cursor: pointer;
    background: transparent;
    border: none;
}

.btn-login:hover {
    color: var(--color-text-light);
}

.nav-link-login {
    display: none !important;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

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

.mobile-nav-toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-light);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

/* ---------------------------------------------------------
   5. SECCIÓN HERO (PRINCIPAL)
--------------------------------------------------------- */
.hero {
    position: relative;
    padding: 160px 0 100px;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-container-centered {
    max-width: 960px;
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-container-centered .hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
}

@media (min-width: 1025px) {
    .hero-container-centered .hero-title {
        font-size: 4rem;
        max-width: 900px;
    }
}

.hero-container-centered .hero-description {
    margin-left: auto;
    margin-right: auto;
    max-width: 720px;
    font-size: 1.25rem;
    line-height: 1.6;
}

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

.hero-container-centered .hero-social-proof {
    justify-content: center;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 24px;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    margin-bottom: 40px;
    max-width: 580px;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 48px;
}

.hero-social-proof {
    display: flex;
    align-items: center;
    gap: 16px;
}

.avatars {
    display: flex;
}

.avatar-dot {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-dark-card);
    border: 2px solid var(--color-dark-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-right: -12px;
    box-shadow: var(--shadow-sm);
}

.social-proof-text {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* Teléfono y Tarjeta 3D en el Hero */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup-wrapper {
    perspective: 1200px;
    width: 100%;
    max-width: 320px;
}

.phone-mockup {
    width: 100%;
    aspect-ratio: 1 / 2;
    background: #000;
    border-radius: 44px;
    padding: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), 
                0 0 0 4px rgba(255, 255, 255, 0.1),
                0 0 40px var(--color-primary-glow);
    transition: transform var(--transition-slow);
    transform-style: preserve-3d;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #090d16;
    border-radius: 34px;
    overflow: hidden;
    position: relative;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

/* Efectos de luces de fondo */
.glow-1 {
    width: 300px;
    height: 300px;
    background: var(--color-primary);
    top: -50px;
    right: -100px;
}

.glow-2 {
    width: 250px;
    height: 250px;
    background: var(--color-secondary);
    bottom: -50px;
    left: -100px;
}

/* ---------------------------------------------------------
   6. MOCKUP DE TARJETA WALLET (ESTILO APPLE WALLET)
--------------------------------------------------------- */
.wallet-card {
    background-color: var(--card-color, var(--color-primary));
    border-radius: 16px;
    padding: 20px;
    color: #fff;
    box-shadow: var(--shadow-lg), 0 0 24px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    overflow: hidden;
    transition: background-color var(--transition-normal);
}

.wallet-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0) 60%);
    pointer-events: none;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.card-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-logo-img {
    height: 24px;
    width: auto;
    object-fit: contain;
    display: block;
}

.card-logo-icon {
    font-size: 1.4rem;
}

.card-logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: -0.2px;
}

.card-points {
    text-align: right;
}

.points-label {
    display: block;
    font-size: 0.6rem;
    font-weight: 700;
    opacity: 0.7;
    letter-spacing: 1px;
}

.points-value {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
}

.card-body {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.holder-label, .coupon-label {
    display: block;
    font-size: 0.6rem;
    font-weight: 700;
    opacity: 0.7;
    letter-spacing: 0.8px;
    margin-bottom: 2px;
}

.holder-name, .coupon-value {
    font-weight: 600;
    font-size: 0.85rem;
}

/* Cuadrícula de Sellos */
.card-stamps {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    background: rgba(0, 0, 0, 0.18);
    padding: 12px;
    border-radius: var(--radius-sm);
}

.stamp {
    aspect-ratio: 1;
    background: rgba(255, 255, 255, 0.1);
    border: 1px dashed rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    transition: all var(--transition-normal);
    color: rgba(255, 255, 255, 0.2);
}

.stamp.active {
    background: #fff;
    border-color: #fff;
    color: var(--card-color, var(--color-primary));
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Cashback Info */
.card-cashback-info {
    background: rgba(0, 0, 0, 0.18);
    padding: 12px;
    border-radius: var(--radius-sm);
}

.cashback-stat-row {
    display: flex;
    justify-content: space-between;
    gap: 8px;
}

.cashback-stat-box {
    flex: 1;
}

.cashback-label {
    display: block;
    font-size: 0.55rem;
    font-weight: 700;
    opacity: 0.7;
    letter-spacing: 0.8px;
    margin-bottom: 2px;
}

.cashback-value {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 0.95rem;
}

.card-footer-barcode {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
}

.barcode {
    width: 100%;
    height: 38px;
    background: repeating-linear-gradient(
        90deg,
        #fff,
        #fff 2px,
        #000 2px,
        #000 4px
    );
    border-radius: 2px;
    opacity: 0.95;
    background-color: #fff;
    padding: 2px 4px;
}

.barcode-number {
    font-family: monospace;
    font-size: 0.65rem;
    opacity: 0.8;
    letter-spacing: 2px;
}

/* ---------------------------------------------------------
   7. SECCIÓN DEL SIMULADOR INTERACTIVO
--------------------------------------------------------- */
.simulator-section {
    position: relative;
    padding: 100px 0;
    background: linear-gradient(180deg, var(--color-dark-bg) 0%, var(--color-dark-surface) 100%);
    border-top: 1px solid var(--glass-border);
}

.section-header {
    max-width: 700px;
    margin: 0 auto 56px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.75rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
}

.simulator-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 48px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    position: relative;
}

/* Controles */
.simulator-controls {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.control-label {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-text-light);
    letter-spacing: 0.2px;
}

.form-control {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--color-text-light);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    background-color: rgba(255, 255, 255, 0.08);
}

/* Forzar que las opciones del select sean legibles tanto en modo claro como oscuro */
#select-stamps option {
    background-color: #121826 !important;
    color: #f8fafc !important;
}

/* Radio Button Toggle Group */
.radio-toggle-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 4px;
}

.radio-label {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.radio-label input {
    display: none;
}

.radio-label span {
    width: 100%;
    text-align: center;
    padding: 10px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.radio-label input:checked + span {
    background-color: var(--color-primary);
    color: var(--color-text-light);
}

/* Icon Presets */
.icon-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.btn-icon-preset {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-light);
    font-size: 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.btn-icon-preset:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-icon-preset.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px var(--color-primary-glow);
}

/* Color Presets */
.color-presets {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.btn-color-preset {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-color-preset.active {
    border-color: #fff;
    transform: scale(1.15);
}

.color-picker-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.color-picker-wrapper input[type="color"] {
    -webkit-appearance: none;
    border: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    background: transparent;
}

.color-picker-wrapper input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker-wrapper input[type="color"]::-webkit-color-swatch {
    border: 1px solid var(--glass-border);
    border-radius: 50%;
}

/* Preview de Celular en Simulador */
.simulator-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}

.preview-phone {
    max-width: 290px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.simulator-cta {
    text-align: center;
}

.simulator-cta-text {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: 12px;
    font-weight: 500;
}

/* ---------------------------------------------------------
   8. COMPLEMENTOS COMPARATIVA (ANTES VS DESPUÉS)
--------------------------------------------------------- */
.comparison-section {
    padding: 100px 0;
    position: relative;
}

.section-category {
    font-family: var(--font-heading);
    color: var(--color-primary);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    display: block;
    margin-bottom: 8px;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-top: 48px;
}

.comparison-card {
    background-color: var(--color-dark-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 48px;
    transition: transform var(--transition-normal);
}

.comparison-card:hover {
    transform: translateY(-4px);
}

.comparison-card-header {
    margin-bottom: 32px;
}

.comparison-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.icon-pain {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-accent-error);
}

.icon-solution {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-accent-success);
}

.comparison-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.comparison-sub {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.comparison-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.comparison-list li {
    position: relative;
    padding-left: 24px;
    font-size: 0.95rem;
    color: var(--color-text-muted);
}

.comparison-list li strong {
    color: var(--color-text-light);
    display: block;
    margin-bottom: 2px;
}

.pain-card .comparison-list li::before {
    content: '✕';
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--color-accent-error);
    font-weight: 700;
    font-size: 0.85rem;
}

.solution-card {
    border-color: var(--color-primary-glow);
    box-shadow: 0 10px 30px hsla(var(--color-primary-hue), var(--color-primary-sat), var(--color-primary-light), 0.05);
}

.solution-card .comparison-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--color-accent-success);
    font-weight: 700;
    font-size: 0.95rem;
}

/* ---------------------------------------------------------
   9. CÓMO FUNCIONA (PASOS)
--------------------------------------------------------- */
.how-it-works {
    padding: 100px 0;
    background-color: var(--color-dark-surface);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 56px;
}

.step-card {
    background-color: var(--color-dark-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.step-card:hover {
    transform: translateY(-6px);
    border-color: var(--color-primary-glow);
    box-shadow: var(--shadow-md);
}

.step-num {
    position: absolute;
    top: 20px;
    right: 28px;
    font-family: var(--font-heading);
    font-size: 6rem;
    font-weight: 800;
    line-height: 1;
    color: rgba(255, 255, 255, 0.03);
    pointer-events: none;
    transition: color var(--transition-normal);
}

.step-card:hover .step-num {
    color: rgba(232, 82, 42, 0.06);
}

.step-card h3 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 12px;
    position: relative;
    z-index: 2;
}

.step-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    position: relative;
    z-index: 2;
}

.step-icon {
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: 24px;
}

/* ---------------------------------------------------------
   10. PESTAÑAS POR INDUSTRIA (VERTICAL/HORIZONTAL)
--------------------------------------------------------- */
.industries-section {
    padding: 100px 0;
}

.tabs-nav {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.tab-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    color: var(--color-text-muted);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 12px 24px;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-text-light);
}

.tab-btn.active {
    background: var(--color-primary);
    color: var(--color-text-light);
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px var(--color-primary-glow);
}

.tabs-content-wrapper {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 56px;
    box-shadow: var(--shadow-lg);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.4s ease-out;
}

.tab-pane-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
}

.tab-text h3 {
    font-family: var(--font-heading);
    font-size: 1.85rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.tab-paragraph {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    margin-bottom: 28px;
}

.tab-bullet-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tab-bullet-list li {
    position: relative;
    padding-left: 24px;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.tab-bullet-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.tab-bullet-list li strong {
    color: var(--color-text-light);
}

.tab-visual-demo {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-card-wrap {
    width: 100%;
    max-width: 250px;
}

.mini-card {
    box-shadow: var(--shadow-md);
}

/* ---------------------------------------------------------
   11. SECCIÓN DE PRECIOS
--------------------------------------------------------- */
.pricing-section {
    padding: 100px 0;
    background-color: var(--color-dark-surface);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

/* Toggle Switch estilo iOS */
.billing-toggle {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    padding: 6px 18px;
    border-radius: 50px;
    margin-top: 16px;
}

.billing-label {
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.discount-badge {
    background: var(--color-accent-success);
    color: var(--color-dark-bg);
    font-size: 0.7rem;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 50px;
    margin-left: 4px;
}

.toggle-switch {
    width: 50px;
    height: 28px;
    background-color: var(--color-dark-card);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    position: relative;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.toggle-switch[aria-checked="true"] {
    background-color: var(--color-primary);
}

.toggle-handler {
    display: block;
    width: 22px;
    height: 22px;
    background: #fff;
    border-radius: 50%;
    position: absolute;
    top: 2px;
    left: 2px;
    transition: transform var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.toggle-switch[aria-checked="true"] .toggle-handler {
    transform: translateX(22px);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 56px;
    align-items: stretch;
}

.pricing-card {
    background-color: var(--color-dark-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 48px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    transition: all var(--transition-normal);
}

.pricing-card:hover {
    transform: translateY(-6px);
    border-color: rgba(255, 255, 255, 0.15);
}

.pricing-card.popular {
    border-color: var(--color-primary);
    box-shadow: 0 20px 45px hsla(var(--color-primary-hue), var(--color-primary-sat), var(--color-primary-light), 0.08);
}

.popular-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-text-light);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 0.75rem;
    letter-spacing: 1px;
    padding: 6px 18px;
    border-radius: 50px;
}

.pricing-card-header {
    margin-bottom: 28px;
}

.pricing-card-header h3 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.pricing-desc {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 24px;
    min-height: 48px;
}

.price-container {
    display: flex;
    align-items: flex-end;
    margin-bottom: 8px;
}

.currency {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 12px;
}

.price-value {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
}

.period {
    color: var(--color-text-muted);
    font-size: 1rem;
    margin-bottom: 10px;
    margin-left: 2px;
}

.price-custom {
    font-family: var(--font-heading);
    font-size: 2.35rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 12px;
}

.price-yearly-sub {
    font-size: 0.8rem;
    font-weight: 500;
}

.pricing-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}

.pricing-features li {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.pricing-features li strong {
    color: var(--color-text-light);
}

.check-icon {
    color: var(--color-accent-success);
    flex-shrink: 0;
}

/* ---------------------------------------------------------
   12. SECCIÓN PREGUNTAS FRECUENTES (FAQ ACORDEÓN)
--------------------------------------------------------- */
.faq-section {
    padding: 100px 0;
}

.faq-accordion-container {
    max-width: 780px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background-color: var(--color-dark-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-fast);
}

.faq-item:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.faq-question {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--color-text-light);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    text-align: left;
    padding: 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.faq-icon-indicator {
    font-size: 1.4rem;
    color: var(--color-primary);
    transition: transform var(--transition-fast);
}

.faq-answer {
    padding: 0 24px 24px;
    color: var(--color-text-muted);
    font-size: 0.95rem;
    animation: slideDown 0.3s ease-out;
}

/* ---------------------------------------------------------
   13. LLAMADO A LA ACCIÓN FINAL
--------------------------------------------------------- */
.final-cta {
    position: relative;
    padding: 120px 0;
    background: linear-gradient(180deg, var(--color-dark-surface) 0%, var(--color-dark-bg) 100%);
    border-top: 1px solid var(--glass-border);
    overflow: hidden;
}

.cta-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto 40px;
}

.cta-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
}

.cta-note {
    font-size: 0.85rem;
    font-weight: 500;
}

.glow-cta {
    width: 400px;
    height: 400px;
    background: var(--color-primary);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.15;
}

/* ---------------------------------------------------------
   14. FOOTER
--------------------------------------------------------- */
.footer {
    background-color: #070a10;
    padding: 80px 0 48px;
    border-top: 1px solid var(--glass-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    max-width: 320px;
}

.footer-copy {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.2);
    margin-top: auto;
}

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

.footer-links h4, .footer-newsletter h4 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-text-light);
}

.footer-newsletter p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.newsletter-form {
    display: flex;
    gap: 8px;
}

.newsletter-form .form-control {
    flex: 1;
    padding: 10px 16px;
    font-size: 0.9rem;
}

.newsletter-form .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
}

/* ---------------------------------------------------------
   15. ANIMACIONES CSS
--------------------------------------------------------- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes slideDown {
    from { height: 0; opacity: 0; }
    to { height: auto; opacity: 1; }
}

/* ---------------------------------------------------------
   16. ADAPTABILIDAD RESPONSIVA (MEDIA QUERIES)
--------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-social-proof {
        justify-content: center;
    }
    
    .simulator-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 32px;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 450px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr;
    }
}

/* Optimización para el menú en tabletas para evitar desbordes */
@media (min-width: 769px) and (max-width: 1024px) {
    .nav {
        gap: 14px;
    }
    
    .nav-link {
        font-size: 0.85rem;
    }
    
    .header-actions {
        gap: 8px;
    }
    
    .header-actions .btn {
        padding: 8px 16px;
        font-size: 0.8rem;
    }
    
    .btn-login {
        font-size: 0.85rem;
        padding: 6px 10px;
    }
}

@media (max-width: 768px) {
    .header-container {
        height: 70px;
    }
    
    .header-actions {
        display: none;
    }
    
    .nav {
        display: none; /* En producción, se manejaría menú móvil */
    }
    
    .mobile-nav-toggle {
        display: flex;
    }
    
    /* Mostrar menú móvil cuando está abierto */
    .header.nav-open .nav {
        display: flex;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--color-dark-surface);
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--glass-border);
        gap: 20px;
    }
    
    .header.nav-open .header-actions {
        display: flex;
        flex-direction: column;
        width: 100%;
        margin-top: 16px;
    }
    
    .header.nav-open .header-actions .btn {
        width: 100%;
    }

    .header-actions .btn-login {
        display: none !important;
    }

    .nav-link-login {
        display: block !important;
        color: var(--color-primary) !important;
        font-weight: 700 !important;
        border-top: 1px dashed var(--glass-border);
        padding-top: 16px !important;
        margin-top: 8px;
        text-align: center;
        width: 100%;
    }

    .hero-title {
        font-size: 2.35rem;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison-card {
        padding: 32px;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .tab-pane-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .tabs-content-wrapper {
        padding: 32px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-title {
        font-size: 2.15rem;
    }
    
    .cta-actions {
        flex-direction: column;
        gap: 16px;
    }
    
    .cta-actions .btn {
        width: 100%;
        max-width: 320px;
    }
}

/* ==========================================================================
   17. LO QUE REKU HACE POR TU NEGOCIO (Fidelopass Adaptation)
   ========================================================================== */
.features-overview-section {
    padding: 100px 0;
    background-color: var(--color-dark-surface);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.features-overview-section .section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-text-light);
    letter-spacing: -1px;
    margin-bottom: 0;
}

.title-divider-line {
    width: 100%;
    height: 1px;
    background-color: var(--glass-border);
    margin: 32px 0 48px;
}

.features-overview-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 50px;
}

.feature-overview-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 40px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all var(--transition-normal);
}

.feature-overview-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(251, 66, 10, 0.3);
    box-shadow: 0 15px 30px rgba(251, 66, 10, 0.08);
}

.feature-icon-wrapper {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(251, 66, 10, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: all var(--transition-normal);
}

.feature-overview-card:hover .feature-icon-wrapper {
    background: rgba(251, 66, 10, 0.2);
    transform: scale(1.1);
}

.feature-icon {
    width: 32px;
    height: 32px;
}

.feature-card-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: 16px;
    line-height: 1.3;
}

.feature-card-desc {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.features-overview-action {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 40px;
}

.btn-demo-wide {
    padding: 16px 48px;
    letter-spacing: 0.5px;
    font-weight: 700;
    border-radius: 50px;
}

/* Responsividad para la nueva sección */
@media (max-width: 1024px) {
    .features-overview-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .features-overview-section .section-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .features-overview-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .feature-overview-card {
        padding: 32px 20px;
    }
}

/* ---------------------------------------------------------
   18. SECCIÓN CONTACTO Y FORMULARIO EMBEBIDO
--------------------------------------------------------- */
.contact-section {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--color-dark-bg) 0%, var(--color-dark-surface) 100%);
    border-top: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.contact-form-container {
    max-width: 700px;
    margin: 0 auto;
    width: 100%;
    padding: 0 16px;
}

.contact-form-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-lg);
    height: 720px; /* fixed height slightly taller than data-height="642" to fit form comfortably */
    position: relative;
    transition: all var(--transition-normal);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.contact-form-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.5), 0 0 30px var(--color-primary-glow);
}

@media (max-width: 768px) {
    .contact-section {
        padding: 80px 0;
    }
    
    .contact-form-card {
        padding: 12px;
        height: 740px; /* slightly taller on mobile due to form elements stretching vertically */
    }
}

/* Apilamiento de botones en pantallas móviles estrechas */
@media (max-width: 576px) {
    .hero-actions, .features-overview-action {
        flex-direction: column !important;
        gap: 12px !important;
        width: 100%;
        max-width: 320px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions .btn, .features-overview-action .btn {
        width: 100%;
    }
}