:root {
    --color-primary: #FFCC00;
    --color-secondary: #333333;
    --color-light: #F5F5F5;
    --color-dark: #222222;
    --color-white: #ffffff;
    --color-text-muted: #666666;
    --color-text-light: #555555;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.15);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Transitions */
    --transition-fast: all 0.15s ease;
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    
    /* Typography */
    --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;
    
    /* Responsive spacing */
    --section-padding: clamp(3rem, 8vw, 5rem);
    --container-padding: clamp(1rem, 4vw, 1.5rem);
}

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

/* Estilos generales mejorados */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography responsive */
h1 {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

h2 {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

h3 {
    font-size: clamp(var(--font-size-lg), 3vw, var(--font-size-2xl));
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--space-sm);
}

h4, h5 {
    font-size: clamp(var(--font-size-base), 2.5vw, var(--font-size-lg));
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--space-sm);
}

p {
    font-size: clamp(var(--font-size-base), 2vw, var(--font-size-lg));
    margin-bottom: var(--space-md);
    color: var(--color-text-light);
}

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

/* Container mejorado */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Buttons mejorados */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    background-color: var(--color-primary);
    color: var(--color-dark);
    padding: clamp(0.75rem, 2vw, 1rem) clamp(1.5rem, 3vw, 2rem);
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
    box-shadow: var(--shadow);
    min-height: 48px; /* Accessibility touch target */
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn:hover::before {
    left: 100%;
}

.btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

.btn-secondary {
    background-color: var(--color-secondary);
    color: var(--color-white);
}

.btn-secondary:hover {
    background-color: #222;
}

/* Header mejorado */
header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: var(--space-sm) 0;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--transition);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-lg);
}

.logo {
    display: flex;
    align-items: center;
    font-size: clamp(var(--font-size-lg), 3vw, var(--font-size-2xl));
    font-weight: 700;
    color: var(--color-dark);
    text-decoration: none;
    transition: var(--transition);
}

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

.logo img {
    height: clamp(32px, 5vw, 40px);
    margin-right: var(--space-xs);
}

.nav-links {
    display: flex;
    gap: clamp(var(--space-sm), 3vw, var(--space-lg));
    list-style: none;
}

.nav-links a {
    color: var(--color-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: var(--transition);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition);
    transform: translateX(-50%);
}

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

.nav-links a:hover::after {
    width: 80%;
}

.nav-links a:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Hero section mejorada */
.hero {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-light) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 204, 0, 0.05) 0%, transparent 70%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero h1 {
    margin-bottom: var(--space-md);
    color: var(--color-dark);
}

.hero p {
    font-size: clamp(var(--font-size-lg), 3vw, var(--font-size-xl));
    margin-bottom: var(--space-lg);
    color: var(--color-text-muted);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-lg);
    flex-wrap: wrap;
}

.hero-image {
    margin-top: clamp(var(--space-xl), 6vw, var(--space-2xl));
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    position: relative;
}

.hero-image img {
    width: 100%;
    height: auto;
    transition: var(--transition-slow);
}

.hero-image:hover img {
    transform: scale(1.02);
}

/* Sections generales */
section {
    padding: var(--section-padding) 0;
}

.section-title {
    text-align: center;
    margin-bottom: clamp(var(--space-xl), 6vw, var(--space-2xl));
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title h2 {
    color: var(--color-dark);
    margin-bottom: var(--space-md);
}

.section-title p {
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
    font-size: clamp(var(--font-size-base), 2.5vw, var(--font-size-lg));
}

/* Features section */
.features {
    background-color: var(--color-white);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
    gap: clamp(var(--space-lg), 4vw, var(--space-xl));
    margin-top: var(--space-lg);
}

.step-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: clamp(var(--space-lg), 4vw, var(--space-xl));
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.step-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), #ffd633);
    transform: scaleX(0);
    transition: var(--transition);
}

.step-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

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

.step-icon {
    width: clamp(60px, 8vw, 80px);
    height: clamp(60px, 8vw, 80px);
    /*  background: linear-gradient(135deg, var(--color-primary), #ffd633); */
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.step-card:hover .step-icon {
    transform: scale(1.1) rotate(5deg);
}

.step-icon img {
    width: clamp(24px, 4vw, 40px);
    height: clamp(24px, 4vw, 40px);
}

/* Benefits section */
.benefits {
    background-color: var(--color-light);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
    gap: clamp(var(--space-lg), 4vw, var(--space-xl));
    margin-top: var(--space-lg);
}

.benefit-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: clamp(var(--space-md), 3vw, var(--space-lg));
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    font-size: clamp(var(--font-size-3xl), 4vw, var(--font-size-4xl));
    margin-bottom: var(--space-md);
    display: block;
}

/* FAQ Section mejorada */
.faq {
    background-color: var(--color-white);
}

.accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    margin-bottom: var(--space-md);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.accordion-item.active {
    box-shadow: var(--shadow-lg);
}

.accordion-title {
    background-color: var(--color-light);
    padding: var(--space-md) var(--space-lg);
    cursor: pointer;
    position: relative;
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.accordion-title:hover {
    background-color: #ebebeb;
}

.accordion-title::after {
    content: '+';
    font-size: var(--font-size-xl);
    font-weight: 300;
    transition: var(--transition);
}

.accordion-item.active .accordion-title::after {
    transform: rotate(45deg);
}

.accordion-content {
    padding: 0 var(--space-lg);
    background-color: var(--color-white);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.accordion-item.active .accordion-content {
    padding: var(--space-lg);
}

/* CTA Section */
.cta {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, #ffd633 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="rgba(0,0,0,0.1)"/></svg>') repeat;
    opacity: 0.1;
}

.cta > * {
    position: relative;
    z-index: 1;
}

.cta h2 {
    margin-bottom: var(--space-md);
    color: var(--color-dark);
}

.cta p {
    margin-bottom: var(--space-lg);
    color: var(--color-dark);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.contact-form {
    max-width: 500px;
    margin: 0 auto;
    background-color: var(--color-white);
    padding: clamp(var(--space-lg), 4vw, var(--space-xl));
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.form-group {
    margin-bottom: var(--space-md);
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: 500;
    color: var(--color-dark);
    font-size: var(--font-size-sm);
}

.form-control {
    width: 100%;
    padding: var(--space-sm);
    border: 2px solid #e5e7eb;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: var(--font-size-base);
    transition: var(--transition);
    background-color: var(--color-white);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 204, 0, 0.1);
}

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

/* Footer mejorado */
footer {
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: clamp(var(--space-xl), 6vw, var(--space-2xl)) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
    gap: clamp(var(--space-lg), 4vw, var(--space-xl));
    margin-bottom: var(--space-xl);
}

.footer-column h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

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

.footer-links li {
    margin-bottom: var(--space-xs);
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: var(--transition);
    font-size: var(--font-size-sm);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid #444;
    font-size: var(--font-size-sm);
    color: #999;
}

.social-links {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-md);
    justify-content: flex-start;
}

.social-icon {
    width: 48px;
    height: 48px;
    background-color: #444;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    text-decoration: none;
    transition: var(--transition);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.social-icon:hover {
    background-color: var(--color-primary);
    color: var(--color-dark);
    transform: translateY(-2px);
}

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

.animate {
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

/* Media Queries mejoradas */
@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-md);
    }
    
    .btn {
        width: 100%;
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
}

@media (min-width: 1200px) {
    .steps {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .benefits-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles para keyboard navigation */
a:focus,
button:focus,
input:focus,
textarea:focus,
.accordion-title:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Utilidades mejoradas */
.text-center { text-align: center; }
.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;
}