/* ===== VARIABLES CSS ===== */
/* Defino todas las variables del sistema de diseño */
:root {
    /* Colores principales que uso en todo el proyecto */
    --primary-blue: #3b82f6;
    --primary-indigo: #6366f1;
    --primary-purple: #8b5cf6;
    --accent-green: #10b981;
    --accent-yellow: #f59e0b;
    
    /* Escala de grises que aplico en componentes */
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    
    /* Sistema tipográfico escalable */
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    --font-size-7xl: 4.5rem;
    
    /* Sistema de espaciado consistente */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* Sombras para profundidad visual */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* Bordes redondeados */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;
    
    /* Transiciones suaves */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

/* ===== RESET Y BASE ===== */
/* Normalizo elementos base para consistencia */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

/* Configuro el body con mi tema visual principal */
body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: white;
    background: linear-gradient(135deg, var(--slate-900) 0%, #1e40af 50%, #4338ca 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Control del scroll cuando el modal está activo */
body.modal-active {
    overflow: hidden;
}

/* Container responsivo que centro en la página */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

/* ===== ESTILOS PRINCIPALES PARA DESKTOP ===== */

/* Navegación fija con efecto blur */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-4) var(--spacing-4);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.nav-logo {
    width: 48px;
    height: 48px;
    background: white;
    border-radius: var(--border-radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.nav-logo img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
}

.nav-icon {
    width: 28px;
    height: 28px;
    color: white;
}

.nav-text h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-text p {
    font-size: var(--font-size-sm);
    color: var(--slate-300);
}

/* Menú de navegación desktop */
.nav-menu {
    display: none;
    align-items: center;
    gap: var(--spacing-8);
}

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

.nav-link:hover {
    color: #60a5fa;
}

/* Botón menú móvil (oculto en desktop) */
.mobile-menu-btn {
    display: block;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: var(--spacing-2);
    margin-right: var(--spacing-4);
}

/* Menú móvil colapsable */
.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--slate-700);
    padding: var(--spacing-6) var(--spacing-4);
    flex-direction: column;
    gap: var(--spacing-4);
}

.mobile-menu.active {
    display: flex;
}

.mobile-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-2) 0;
    border-bottom: 1px solid transparent;
    transition: all var(--transition-fast);
}

.mobile-link:hover {
    color: #60a5fa;
    border-bottom-color: #60a5fa;
}

/* ===== MODAL OVERLAY Y CONTAINER - OPTIMIZADO ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
    visibility: visible;
}

.modal-container {
    background: linear-gradient(135deg, var(--slate-800) 0%, var(--slate-900) 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-2xl);
    max-width: 1200px;
    width: 95%;
    max-height: 95vh;
    min-height: 70vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: all var(--transition-normal);
    position: relative;
}

.modal-overlay.active .modal-container {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-6) var(--spacing-8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-2xl) var(--border-radius-2xl) 0 0;
}

.modal-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 0;
}

.modal-close-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--border-radius-lg);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.modal-close-btn svg {
    width: 20px;
    height: 20px;
}



/* Mejora del scrollbar del modal principal */
.modal-container::-webkit-scrollbar {
    width: 8px;
}

.modal-container::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 4px;
}

.modal-container::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    transition: background var(--transition-fast);
}

.modal-container::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* Estados de loading en modal */
.loading-content {
    text-align: center;
    padding: 3rem;
    color: white;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(96, 165, 250, 0.3);
    border-top: 3px solid #60a5fa;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem auto;
}

/* ===== SISTEMA DE BOTONES ===== */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-indigo));
    color: white;
    border: none;
    padding: var(--spacing-2) var(--spacing-6);
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-base);
    text-decoration: none;
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid #60a5fa;
    padding: var(--spacing-2) var(--spacing-6);
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-base);
    text-decoration: none;
}

.btn-secondary:hover {
    background: rgba(96, 165, 250, 0.1);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid #60a5fa;
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 100%;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-outline:hover {
    background: rgba(96, 165, 250, 0.1);
}

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

.btn-full {
    width: 100%;
    justify-content: center;
}

.mobile-btn {
    width: 100%;
    justify-content: center;
}

/* Sección hero principal */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    padding-bottom: var(--spacing-16);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(99, 102, 241, 0.2));
    z-index: -1;
}

.hero-content {
    text-align: center;
    margin-bottom: var(--spacing-20);
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--spacing-8);
    background: linear-gradient(135deg, #60a5fa, #a78bfa, #c084fc);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: pulse 3s ease-in-out infinite;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--slate-300);
    margin-bottom: var(--spacing-12);
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
}

.highlight {
    color: #60a5fa;
    font-weight: 600;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    align-items: center;
}

/* Logo en hero section */
.hero-logo {
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border: 3px solid rgba(96, 165, 250, 0.3);
    border-radius: var(--border-radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--spacing-12) auto var(--spacing-8) auto;
    box-shadow: 
        0 0 30px rgba(96, 165, 250, 0.4),
        0 20px 40px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-normal);
    animation: logoFloat 3s ease-in-out infinite;
}

.hero-logo:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 
        0 0 40px rgba(96, 165, 250, 0.6),
        0 30px 60px rgba(0, 0, 0, 0.3);
}

.hero-logo img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
}

.hero-content-with-logo {
    text-align: center;
    margin-bottom: var(--spacing-20);
}

.hero-title-with-logo {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-6);
    background: linear-gradient(135deg, #60a5fa, #a78bfa, #c084fc);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: pulse 3s ease-in-out infinite;
}

/* Container principal de características */
.features-container {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-12);
    margin-top: var(--spacing-12);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.features-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
}

.features-container:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-5px);
    box-shadow: 
        0 30px 60px rgba(0, 0, 0, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

/* Grid de características */
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
}

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-6);
    text-align: center;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-8px) scale(1.05);
    box-shadow: var(--shadow-2xl);
}

.feature-icon {
    color: #60a5fa;
    margin-bottom: var(--spacing-4);
    display: flex;
    justify-content: center;
}

.feature-icon svg {
    width: 2rem;
    height: 2rem;
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.feature-card p {
    color: var(--slate-300);
}

/* Headers de secciones */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-16);
}

.section-header h2 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-4);
}

.section-header p {
    font-size: var(--font-size-xl);
    color: var(--slate-300);
    max-width: 48rem;
    margin: 0 auto;
}

/* Sección de precios */
.pricing {
    padding: var(--spacing-20) 0;
    background: rgba(30, 41, 59, 0.5);
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
}

.pricing-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-8);
    position: relative;
    transition: all var(--transition-normal);
}

.pricing-card:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: var(--shadow-2xl);
}

.pricing-card.popular {
    border-color: #60a5fa;
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: -1rem;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-indigo));
    color: white;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-6);
}

.pricing-header h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-2);
}

.price {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: #60a5fa;
}

.price span {
    font-size: var(--font-size-base);
    color: var(--slate-300);
}

/* Beneficios universales */
.universal-features {
    background: rgba(16, 185, 129, 0.1);
    border: 2px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-8);
    margin-bottom: var(--spacing-16);
    text-align: center;
}

.universal-features h3 {
    color: #6ee7b7;
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-6);
    font-weight: 700;
}

.features-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-4);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-fast);
}

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

.feature-item svg {
    color: var(--accent-green);
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
}

.feature-item span {
    color: white;
    font-weight: 500;
}

.payment-type {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    background: rgba(96, 165, 250, 0.2);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-4);
}

.payment-type svg {
    color: #60a5fa;
    width: 1rem;
    height: 1rem;
}

.payment-type span {
    color: #60a5fa;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.equivalent {
    color: var(--slate-400);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-1);
    font-weight: 500;
}

.plan-benefits {
    margin: var(--spacing-6) 0;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-3);
    padding: var(--spacing-2) 0;
}

.benefit-item svg {
    color: #60a5fa;
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
}

.benefit-item.highlight {
    background: rgba(245, 158, 11, 0.1);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-3);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.benefit-item.highlight svg {
    color: var(--accent-yellow);
}

.benefit-item.highlight strong {
    color: var(--accent-yellow);
}

.total-annual {
    background: rgba(30, 41, 59, 0.5);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-4);
    margin: var(--spacing-6) 0;
    text-align: center;
    border: 1px solid var(--slate-700);
}

.total-label {
    display: block;
    color: var(--slate-400);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-1);
}

.total-amount {
    display: block;
    color: white;
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.total-amount.savings {
    color: var(--accent-green);
}

.total-amount.big-savings {
    color: var(--accent-yellow);
}

.savings-badge {
    display: inline-block;
    background: var(--accent-green);
    color: white;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    margin-top: var(--spacing-2);
}

.savings-badge.big {
    background: var(--accent-yellow);
    color: var(--slate-900);
    animation: savingsPulse 2s ease-in-out infinite;
}

.pricing-card.monthly {
    border-color: var(--slate-500);
}

.pricing-card.semestral {
    border-color: var(--accent-green);
    transform: scale(1.03);
}

.pricing-card.annual {
    border-color: var(--accent-yellow);
}

.pricing-card.semestral:hover {
    border-color: var(--accent-green);
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.3);
}

.pricing-card.annual:hover {
    border-color: var(--accent-yellow);
    box-shadow: 0 0 30px rgba(245, 158, 11, 0.3);
}

.pricing-guarantee {
    margin-top: var(--spacing-16);
    padding: var(--spacing-8);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-2xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.guarantee-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
    max-width: 600px;
    margin: 0 auto;
}

.guarantee-icon {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-indigo));
    border-radius: 50%;
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.guarantee-icon svg {
    color: white;
    width: 2rem;
    height: 2rem;
}

.guarantee-text h4 {
    color: white;
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-xl);
}

.guarantee-text p {
    color: var(--slate-300);
    margin: 0;
    line-height: 1.6;
}

/* Sección about */
.about {
    padding: var(--spacing-20) 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-12);
    align-items: center;
}

.about-content h2 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-6);
}

.about-text {
    margin-bottom: var(--spacing-8);
}

.about-text p {
    font-size: var(--font-size-lg);
    color: var(--slate-300);
    margin-bottom: var(--spacing-6);
}

.testimonial {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin-top: var(--spacing-8);
}

.avatars {
    display: flex;
    margin-left: -0.5rem;
}

.avatar {
    width: 2.5rem;
    height: 2.5rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-indigo));
    border-radius: 50%;
    border: 2px solid white;
    margin-left: -0.5rem;
}

.testimonial-content p {
    font-weight: 600;
    margin-bottom: var(--spacing-1);
}

.rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.star {
    width: 1rem;
    height: 1rem;
}

.star.filled {
    color: var(--accent-yellow);
    fill: currentColor;
}

.rating span {
    margin-left: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--slate-300);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-6);
}

.stat-card {
    background: rgba(59, 130, 246, 0.2);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-8);
    text-align: center;
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: #60a5fa;
    margin-bottom: var(--spacing-1);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--slate-300);
}

/* Sección de contacto */
.contact {
    padding: var(--spacing-20) 0;
    background: rgba(30, 41, 59, 0.5);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-12);
}

.contact-form-container {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-8);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--slate-600);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-3) var(--spacing-4);
    color: white;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--slate-400);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #60a5fa;
    background: rgba(255, 255, 255, 0.15);
}

.form-group textarea {
    resize: none;
    min-height: 120px;
}

.form-message {
    padding: var(--spacing-4);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-4);
}

.form-message.success {
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid var(--accent-green);
    color: #6ee7b7;
}

.form-message.error {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid #ef4444;
    color: #fca5a5;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-8);
}

.info-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-6);
}

.info-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.info-icon {
    color: #60a5fa;
    width: 1.5rem;
    height: 1.5rem;
}

.info-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.info-card p {
    color: var(--slate-300);
    margin-bottom: var(--spacing-2);
}

.social-links {
    display: flex;
    gap: var(--spacing-4);
}

.social-link {
    width: 3rem;
    height: 3rem;
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.social-link:hover {
    transform: translateY(-2px) scale(1.1);
}

.social-link.facebook {
    background: #1877f2;
}

.social-link.email {
    background: var(--primary-indigo);
}

.social-link.phone {
    background: var(--accent-green);
}

.social-link svg {
    width: 1.5rem;
    height: 1.5rem;
}

/* Footer */
.footer {
    background: var(--slate-900);
    padding: var(--spacing-12) 0;
}

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

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.footer-icon {
    color: #60a5fa;
    width: 2rem;
    height: 2rem;
}

.footer-brand span {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.footer-content p {
    color: var(--slate-400);
    margin-bottom: var(--spacing-4);
}

.footer-subtitle {
    font-size: var(--font-size-sm);
    color: var(--slate-500);
}

/* Hero para páginas específicas */
.fc-hero {
    background: linear-gradient(135deg, var(--slate-900) 0%, #1e40af 50%, #4338ca 100%);
    padding: var(--spacing-20) 0 var(--spacing-16) 0;
    position: relative;
    overflow: hidden;
    margin-top: 80px;
}

.fc-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(99, 102, 241, 0.1));
    z-index: 1;
}

.fc-hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.fc-icon-large {
    width: 100px;
    height: 100px;
    background: rgba(96, 165, 250, 0.2);
    border: 3px solid rgba(96, 165, 250, 0.5);
    border-radius: var(--border-radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-6) auto;
    animation: fc-float 3s ease-in-out infinite;
}

.fc-icon-large svg {
    width: 50px;
    height: 50px;
    color: #60a5fa;
}

.fc-breadcrumb {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-4);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-8);
}

.fc-breadcrumb a {
    color: #60a5fa;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.fc-breadcrumb a:hover {
    color: white;
}

.fc-section {
    padding: var(--spacing-16) 0;
}

.fc-section:nth-child(even) {
    background: rgba(30, 41, 59, 0.3);
}

.fc-features-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
}

.fc-item-detailed {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-6);
    transition: all var(--transition-normal);
}

.fc-item-detailed:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.fc-item-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

.fc-item-icon {
    width: 48px;
    height: 48px;
    background: rgba(96, 165, 250, 0.2);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.fc-item-icon svg {
    width: 24px;
    height: 24px;
    color: #60a5fa;
}

.fc-video-section {
    background: rgba(16, 185, 129, 0.1);
    border: 2px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-8);
    text-align: center;
    margin: var(--spacing-16) 0;
}

.fc-video-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-3);
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
    text-decoration: none;
    padding: var(--spacing-4) var(--spacing-6);
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.fc-video-link:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-xl);
}

.fc-highlight-box {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-6);
    margin: var(--spacing-8) 0;
}

/* Examen neurológico */
.neurological-exam-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

.exam-component {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-6);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.exam-component::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #60a5fa, #a78bfa);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.exam-component:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: rgba(96, 165, 250, 0.3);
}

.exam-component:hover::before {
    transform: scaleX(1);
}

.component-icon {
    width: 60px;
    height: 60px;
    background: rgba(96, 165, 250, 0.2);
    border: 2px solid rgba(96, 165, 250, 0.4);
    border-radius: var(--border-radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-4) auto;
    transition: all var(--transition-normal);
}

.component-icon svg {
    width: 28px;
    height: 28px;
    color: #60a5fa;
    transition: all var(--transition-normal);
}

.exam-component:hover .component-icon {
    background: rgba(96, 165, 250, 0.3);
    border-color: #60a5fa;
    transform: scale(1.1);
}

.exam-component:hover .component-icon svg {
    color: white;
    transform: scale(1.1);
}

.exam-component h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
    color: white;
    transition: color var(--transition-normal);
}

.exam-component:hover h4 {
    color: #60a5fa;
}

.exam-component p {
    color: var(--slate-300);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    margin: 0;
    transition: color var(--transition-normal);
}

.exam-component:hover p {
    color: var(--slate-200);
}

/* Sistema de colores hematología */
.color-system-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

.color-indicator {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-6);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.color-indicator::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.color-indicator.normal::before {
    background: #374151;
}

.color-indicator.high::before {
    background: #ef4444;
}

.color-indicator.low::before {
    background: #3b82f6;
}

.color-indicator:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.color-indicator:hover::before {
    transform: scaleX(1);
}

.color-sample {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin: 0 auto var(--spacing-4) auto;
    border: 3px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.color-sample::after {
    content: '✓';
    color: white;
    font-size: var(--font-size-xl);
    font-weight: bold;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.color-indicator:hover .color-sample {
    transform: scale(1.1);
    border-color: rgba(255, 255, 255, 0.4);
}

.color-indicator:hover .color-sample::after {
    opacity: 1;
}

.color-indicator h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
    color: white;
    transition: color var(--transition-normal);
}

.color-indicator.normal:hover h4 {
    color: #9ca3af;
}

.color-indicator.high:hover h4 {
    color: #ef4444;
}

.color-indicator.low:hover h4 {
    color: #3b82f6;
}

.color-indicator p {
    color: var(--slate-300);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    margin: 0;
    transition: color var(--transition-normal);
}

.color-indicator:hover p {
    color: var(--slate-200);
}

/* Documentos e impresión */
.document-categories {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
}

.document-category {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-6);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.document-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #60a5fa, #a78bfa);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.document-category:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.document-category:hover::before {
    transform: scaleX(1);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.category-icon {
    width: 50px;
    height: 50px;
    background: rgba(96, 165, 250, 0.2);
    border: 2px solid rgba(96, 165, 250, 0.4);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.category-icon svg {
    width: 24px;
    height: 24px;
    color: #60a5fa;
    transition: all var(--transition-normal);
}

.document-category:hover .category-icon {
    background: rgba(96, 165, 250, 0.3);
    border-color: #60a5fa;
    transform: scale(1.05);
}

.document-category:hover .category-icon svg {
    color: white;
}

.category-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: white;
    margin: 0;
    transition: color var(--transition-normal);
}

.document-category:hover .category-header h3 {
    color: #60a5fa;
}

.document-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.document-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.document-item:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(96, 165, 250, 0.3);
    transform: translateX(5px);
}

.document-item svg {
    width: 16px;
    height: 16px;
    color: #60a5fa;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.document-item:hover svg {
    color: white;
    transform: scale(1.1);
}

.document-item span {
    color: var(--slate-300);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.document-item:hover span {
    color: white;
}

/* Tutoriales de video */
.video-tutorials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

.tutorial-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-6);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.tutorial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #ef4444, #dc2626);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.tutorial-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.tutorial-card:hover::before {
    transform: scaleX(1);
}

.tutorial-icon {
    width: 60px;
    height: 60px;
    background: rgba(239, 68, 68, 0.2);
    border: 2px solid rgba(239, 68, 68, 0.4);
    border-radius: var(--border-radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-4) auto;
    transition: all var(--transition-normal);
}

.tutorial-icon svg {
    width: 28px;
    height: 28px;
    color: #ef4444;
    transition: all var(--transition-normal);
}

.tutorial-card:hover .tutorial-icon {
    background: rgba(239, 68, 68, 0.3);
    border-color: #ef4444;
    transform: scale(1.1);
}

.tutorial-card:hover .tutorial-icon svg {
    color: white;
}

.tutorial-card h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
    color: white;
    transition: color var(--transition-normal);
}

.tutorial-card:hover h4 {
    color: #ef4444;
}

.tutorial-card p {
    color: var(--slate-300);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    margin-bottom: var(--spacing-4);
    transition: color var(--transition-normal);
}

.tutorial-card:hover p {
    color: var(--slate-200);
}

.tutorial-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
    text-decoration: none;
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.tutorial-link:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    color: white;
}

.tutorial-link svg {
    width: 16px;
    height: 16px;
}

/* Control de ventas personalizado */
.exam-component[data-type="sales"] .component-icon {
    background: rgba(16, 185, 129, 0.2);
    border-color: rgba(16, 185, 129, 0.4);
}

.exam-component[data-type="sales"] .component-icon svg {
    color: #10b981;
}

.exam-component[data-type="sales"]:hover .component-icon {
    background: rgba(16, 185, 129, 0.3);
    border-color: #10b981;
}

.exam-component[data-type="sales"]:hover h4 {
    color: #10b981;
}

.exam-component[data-type="sales"]::before {
    background: linear-gradient(90deg, #10b981, #059669);
}

.exam-component[data-type="sales"]:hover {
    border-color: rgba(16, 185, 129, 0.3);
}

/* Indicadores visuales opcionales */
.feature-card[onclick="#"] {
    cursor: default;
}

.feature-card[onclick*="html"]::after {
    content: '';
    position: absolute;
    top: var(--spacing-2);
    right: var(--spacing-2);
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    opacity: 0.7;
}

.feature-card[onclick="#"]::after {
    content: '';
    position: absolute;
    top: var(--spacing-2);
    right: var(--spacing-2);
    width: 8px;
    height: 8px;
    background: var(--slate-500);
    border-radius: 50%;
    opacity: 0.5;
}

/* ===== MEDIA QUERIES PARA TABLET ===== */
/* Adapto la interfaz para pantallas medianas */

@media (min-width: 640px) {
    /* Ajusto el container para tablet */
    .container {
        padding: 0 var(--spacing-6);
    }
    
    /* Cambio la dirección de botones en hero */
    .hero-buttons {
        flex-direction: row;
        justify-content: center;
    }
    
    /* Expando el grid neurológico en tablet */
    .neurological-exam-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    /* Muestro el menú desktop */
    .nav-menu {
        display: flex;
    }
    
    /* Oculto el botón de menú móvil */
    .mobile-menu-btn {
        display: none;
    }
    
    /* Expando títulos de hero para tablet */
    .hero-title {
        font-size: var(--font-size-7xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-2xl);
    }
    
    .hero-title-with-logo {
        font-size: var(--font-size-6xl);
    }
    
    /* Aumento el logo en hero para tablet */
    .hero-logo {
        width: 150px;
        height: 150px;
    }
    
    /* Expando grids para dos columnas */
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .fc-features-list {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .color-system-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .document-categories {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .video-tutorials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    /* Ajusto el container para desktop */
    .container {
        padding: 0 var(--spacing-8);
    }
    
    /* Maximizo grids para desktop */
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .neurological-exam-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    /* Configuro grids complejos para desktop */
    .about-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* ===== MEDIA QUERIES PARA MÓVIL ===== */
/* Optimizo la experiencia para dispositivos pequeños */

@media (max-width: 767px) {
    /* Reduzco tipografía para móvil */
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .section-header h2 {
        font-size: var(--font-size-3xl);
    }
    
    .section-header p {
        font-size: var(--font-size-lg);
    }
    
    /* Ajusto modal para móvil */
    .modal-container {
        margin: var(--spacing-2);
        max-height: calc(100vh - 1rem);
        max-width: calc(100vw - 1rem);
    }
    
    .modal-content {
        padding: 0; /* Sin padding para que lo maneje el iframe */
    }
}

@media (max-width: 768px) {
    /* Reduzco spacing en features container */
    .features-container {
        padding: var(--spacing-8);
        margin-top: var(--spacing-8);
    }
    
    /* Simplifico showcase para móvil */
    .features-showcase {
        grid-template-columns: 1fr;
    }
    
    /* Cambio layout de garantía */
    .guarantee-content {
        flex-direction: column;
        text-align: center;
    }
    
    /* Normalizo escalas de pricing cards */
    .pricing-card.semestral {
        transform: none;
    }
    
    /* Reduzco padding en indicadores de color */
    .color-indicator {
        padding: var(--spacing-5);
    }
    
    .color-sample {
        width: 50px;
        height: 50px;
    }
    
    .color-sample::after {
        font-size: var(--font-size-lg);
    }
    
    .color-indicator h4 {
        font-size: var(--font-size-base);
    }
    
    /* Simplifico headers de categorías */
    .category-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-3);
    }
    
    .category-icon {
        width: 45px;
        height: 45px;
    }
    
    .category-icon svg {
        width: 20px;
        height: 20px;
    }
    
    /* Reduzco tarjetas de tutorial */
    .tutorial-card {
        padding: var(--spacing-5);
    }
    
    .tutorial-icon {
        width: 50px;
        height: 50px;
    }
    
    .tutorial-icon svg {
        width: 24px;
        height: 24px;
    }
}

@media (max-width: 640px) {
    /* Ajusto features container para móvil pequeño */
    .features-container {
        padding: var(--spacing-6);
        margin-top: var(--spacing-6);
    }
    
    /* Reduzco hero logo para móvil */
    .hero-logo {
        width: 90px;
        height: 90px;
        margin-top: var(--spacing-8);
    }
    
    .hero-title-with-logo {
        font-size: var(--font-size-3xl);
    }
    
    /* Simplifico características universales */
    .universal-features {
        padding: var(--spacing-6);
    }
    
    .universal-features h3 {
        font-size: var(--font-size-xl);
    }
    
    /* Centro elementos de características */
    .feature-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-2);
    }
    
    /* Reduzco componentes de examen */
    .exam-component {
        padding: var(--spacing-5);
    }
    
    .component-icon {
        width: 50px;
        height: 50px;
    }
    
    .component-icon svg {
        width: 24px;
        height: 24px;
    }
    
    .exam-component h4 {
        font-size: var(--font-size-base);
    }
}

@media (max-width: 480px) {
    .modal-container {
        margin: var(--spacing-1);
        max-height: calc(100vh - 0.5rem);
        max-width: calc(100vw - 0.5rem);
    }
}

/* ===== ANIMACIONES Y KEYFRAMES ===== */
/* Defino todas las animaciones que uso en el proyecto */

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes fc-float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes savingsPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes successPulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4);
    }
    50% { 
        transform: scale(1.05);
        box-shadow: 0 0 20px 0 rgba(16, 185, 129, 0.6);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes checkmarkDraw {
    0% {
        stroke-dasharray: 0 100;
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        stroke-dasharray: 100 0;
        opacity: 1;
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* ===== UTILIDADES ===== */
/* Clases de utilidad que aplico según necesidad */

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

.hidden {
    display: none;
}

.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;
}

/* === TOAST NOTIFICATION SYSTEM === */
.toast-container {
    position: fixed;
    top: 20px;
    right: -400px; /* Inicialmente fuera de pantalla */
    z-index: 9999;
    width: 380px;
    transition: right 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.toast-container.show {
    right: 20px; /* Se desliza hacia dentro */
}

.toast {
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    color: white;
    padding: 20px 24px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(76, 175, 80, 0.3);
    display: flex;
    align-items: center;
    gap: 16px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.toast.show {
    transform: scale(1);
}

.toast::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.toast.show::before {
    left: 100%;
}

.toast-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    flex-shrink: 0;
    animation: bounceIn 0.6s ease;
}

.toast-content {
    flex: 1;
    animation: slideInRight 0.5s ease;
}

.toast-title {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 4px 0;
    line-height: 1.3;
}

.toast-message {
    font-size: 14px;
    opacity: 0.95;
    margin: 0;
    line-height: 1.4;
}

.toast-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.2s ease;
    opacity: 0.8;
}

.toast-close:hover {
    background: rgba(255, 255, 255, 0.3);
    opacity: 1;
    transform: scale(1.1);
}

.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 0 0 12px 12px;
    transform-origin: left;
    animation: progressBar 5s linear forwards;
}

@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes slideInRight {
    0% { transform: translateX(20px); opacity: 0; }
    100% { transform: translateX(0); opacity: 1; }
}

@keyframes progressBar {
    0% { transform: scaleX(1); }
    100% { transform: scaleX(0); }
}

.toast.error {
    background: linear-gradient(135deg, #f44336 0%, #d32f2f 100%);
    box-shadow: 0 10px 30px rgba(244, 67, 54, 0.3);
}

.toast.error .toast-progress {
    background: rgba(255, 255, 255, 0.8);
}

@media (max-width: 480px) {
    .toast-container {
        width: calc(100vw - 40px);
        right: -100vw;
    }
    .toast-container.show {
        right: 20px;
    }
}

/* Estilos para los elementos de contacto múltiple */
.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
    margin: var(--spacing-2) 0;
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: 1px solid transparent;
}

.contact-item:hover {
    background: rgba(96, 165, 250, 0.1);
    border-color: rgba(96, 165, 250, 0.3);
    transform: translateX(5px);
}

.contact-item.whatsapp:hover {
    background: rgba(37, 211, 102, 0.1);
    border-color: rgba(37, 211, 102, 0.3);
}

.contact-item.telegram:hover {
    background: rgba(0, 136, 204, 0.1);
    border-color: rgba(0, 136, 204, 0.3);
}

.contact-icon {
    width: 20px;
    height: 20px;
    color: #60a5fa;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.contact-item.whatsapp .contact-icon {
    color: #25d366;
}

.contact-item.telegram .contact-icon {
    color: #0088cc;
}

.contact-item:hover .contact-icon {
    transform: scale(1.1);
}

.contact-item p {
    margin: 0;
    color: var(--slate-300);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.contact-item:hover p {
    color: white;
}

/* Agrupa los items de contacto en fila en desktop y columna en móvil */
.contact-items-row {
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
    align-items: center;
    margin-top: var(--spacing-2);
}

@media (max-width: 640px) {
    .contact-items-row {
        flex-direction: column;
        gap: var(--spacing-2);
        align-items: stretch;
    }
}

/* Ajuste del header de info-card para mejor separación */
.info-card .info-header {
    padding-bottom: var(--spacing-3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-4);
}