/* Reset y Variables */
:root {
    --color-primary: #0066CC;
    --color-primary-dark: #0052A3;
    --color-secondary: #1E1E1E;
    --color-text: #1E1E1E;
    --color-text-light: #666;
    --color-bg: #FFFFFF;
    --color-bg-light: #F8F9FA;
    --color-border: #E0E0E0;
    --color-success: #25D366;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --border-radius: 8px;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

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

/* Header */
.header {
    background: linear-gradient(135deg, #1E1E1E 0%, #2d2d2d 100%);
    border-bottom: 2px solid var(--color-primary);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

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

.logo h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
}

.btn-call-header {
    display: none;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background-color: var(--color-success);
    color: white;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: all 0.3s;
}

.btn-call-header:hover {
    background-color: #1FAF50;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: var(--spacing-xl) 0;
}

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

.hero-image {
    order: -1;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease;
}

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

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

.hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    font-weight: 500;
}

.hero-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background-color: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
}

.benefit-item svg {
    flex-shrink: 0;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.hero-phones {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 1.1rem;
    font-weight: 600;
}

.hero-phones a {
    transition: opacity 0.3s;
}

.hero-phones a:hover {
    opacity: 0.8;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-lg {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

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

.btn-primary:hover {
    background-color: #1FAF50;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: white;
    color: var(--color-primary);
    border: 2px solid white;
}

.btn-secondary:hover {
    background-color: transparent;
    color: white;
    transform: translateY(-2px);
}

/* Section Styles */
section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-secondary);
}

/* Gallery Section */
.gallery-section {
    background-color: var(--color-bg-light);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.gallery-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    aspect-ratio: 4/3;
    background-color: #E0E0E0;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    padding: var(--spacing-md) var(--spacing-sm);
    font-weight: 600;
    font-size: 1.125rem;
}

/* What We Buy Section */
.what-we-buy {
    background-color: var(--color-bg);
}

.conditions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.condition-card {
    background-color: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    text-align: center;
    transition: all 0.3s;
}

.condition-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.condition-icon {
    width: 80px;
    height: 80px;
    background-color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
    color: white;
}

.condition-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

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

/* How It Works */
.how-it-works {
    background-color: var(--color-bg-light);
}

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

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

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-sm);
}

.step-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.step-card p {
    color: var(--color-text-light);
}

/* Documentation Section */
.documentation-section {
    background-color: var(--color-bg);
}

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

.documentation-image {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background-color: #E0E0E0;
    aspect-ratio: 4/3;
}

.documentation-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.documentation-text h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.documentation-text p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.documentation-list {
    list-style: none;
}

.documentation-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: var(--spacing-xs) 0;
    font-size: 1.05rem;
    color: var(--color-text);
}

.documentation-list svg {
    color: var(--color-success);
    flex-shrink: 0;
}

/* Final CTA */
.final-cta {
    background: linear-gradient(135deg, var(--color-secondary) 0%, #000 100%);
    color: white;
    text-align: center;
}

.final-cta-content h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.final-cta-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.final-cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: 400px;
    margin: 0 auto;
}

/* Footer */
.footer {
    background-color: var(--color-secondary);
    color: white;
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.footer-brand p {
    opacity: 0.8;
}

.footer-contact h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.footer-contact p {
    margin-bottom: 0.25rem;
}

.footer-contact a {
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-contact a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
    font-size: 0.9rem;
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 64px;
    height: 64px;
    background-color: var(--color-success);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: all 0.3s;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.4);
}

/* Responsive */
@media (min-width: 768px) {
    .btn-call-header {
        display: flex;
    }
    
    .hero-layout {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
    
    .hero-image {
        order: 1;
    }
    
    .hero-content {
        text-align: left;
    }
    
    .hero-title {
        font-size: 2.75rem;
        line-height: 1.1;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
        line-height: 1.4;
    }
    
    .hero-cta {
        flex-direction: row;
        justify-content: flex-start;
    }
    
    .hero-phones {
        justify-content: flex-start;
    }
    
    .hero-benefits {
        grid-template-columns: 1fr 1fr;
    }
    
    .final-cta-buttons {
        flex-direction: row;
        max-width: none;
        justify-content: center;
    }
}

@media (max-width: 767px) {
    .hero {
        padding: var(--spacing-lg) 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-benefits {
        gap: var(--spacing-xs);
    }
    
    .benefit-item {
        font-size: 0.9rem;
    }
    
    .hero-benefits {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .documentation-content {
        grid-template-columns: 1fr;
    }
    
    .documentation-image {
        order: -1;
    }
    
    .gallery-grid,
    .conditions-grid {
        grid-template-columns: 1fr;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .final-cta-content h2 {
        font-size: 1.75rem;
    }
    
    .final-cta-content p {
        font-size: 1.125rem;
    }
    
    .whatsapp-float {
        bottom: 16px;
        right: 16px;
        width: 56px;
        height: 56px;
    }
    
    .whatsapp-float svg {
        width: 28px;
        height: 28px;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 3.25rem;
    }
    
    .hero-subtitle {
        font-size: 1.4rem;
    }
    
    .hero-layout {
        gap: 4rem;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2.5rem;
        --spacing-lg: 2rem;
    }
    
    .hero-phones {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .hero-phones span {
        display: none;
    }
}