/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #ec4899;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header and Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar {
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    display: flex;
    align-items: center;
}

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

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 0;
}

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

.btn-contacto {
    background: var(--primary-color);
    color: white !important;
    padding: 0.5rem 1.5rem !important;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-contacto:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-whatsapp {
    background: #25D366 !important;
    color: white !important;
    padding: 0.5rem 1.5rem !important;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: flex !important;
    align-items: center;
    gap: 0.5rem;
}

.btn-whatsapp:hover {
    background: #128C7E !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp svg {
    flex-shrink: 0;
}

/* Language Selector */
.lang-selector {
    display: flex;
    align-items: center;
}

.lang-buttons {
    display: flex;
    gap: 0.25rem;
    align-items: center;
}

.lang-btn {
    background: transparent;
    border: none;
    outline: none;
    border-radius: 6px;
    padding: 0.4rem 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
    box-shadow: none;
}

.lang-btn:focus {
    outline: none;
}

.lang-btn .flag {
    font-size: 1.1rem;
    line-height: 1;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.lang-btn .lang-code {
    letter-spacing: 0.3px;
}

.lang-btn:hover {
    background: rgba(99, 102, 241, 0.08);
    color: var(--primary-color);
}

.lang-btn:hover .flag {
    opacity: 1;
    transform: scale(1.08);
}

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

.lang-btn.active .flag {
    opacity: 1;
}

.lang-btn.active:hover {
    background: var(--primary-dark);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #667eea10 0%, #764ba210 100%);
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

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

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

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

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
    padding: 2rem;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Services Section */
.services {
    padding: 100px 0;
    background: var(--bg-white);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.service-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    transition: all 0.3s ease;
    position: relative;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
    border-color: var(--primary-color);
}

.service-card.featured:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(118, 75, 162, 0.4);
}

.service-card.featured {
    background: var(--gradient-primary);
    color: white;
    border: none;
}

.service-card.featured .service-title,
.service-card.featured .service-description,
.service-card.featured .service-features li {
    color: white;
}

.featured-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 16px rgba(99, 102, 241, 0.3);
}

.service-card.featured .service-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.service-card.featured:hover .service-icon {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 16px rgba(255, 255, 255, 0.2);
}

.service-icon svg {
    width: 30px;
    height: 30px;
}

.service-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.service-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.service-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.service-card.featured .service-features li::before {
    color: white;
}

/* Process Section */
.process {
    padding: 100px 0;
    background: var(--bg-light);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.process-step {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.step-number {
    display: inline-block;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    line-height: 60px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.step-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.step-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Advantages Section */
.advantages {
    padding: 100px 0;
    background: var(--bg-white);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

@media (min-width: 768px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .advantages-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.advantage-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    text-align: center;
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.advantage-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.advantage-card:hover .advantage-icon {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.1);
}

.advantage-icon svg {
    width: 35px;
    height: 35px;
}

.advantage-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.advantage-description {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.875rem;
    font-weight: 600;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--bg-light);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.contact-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-method {
    display: flex;
    gap: 1rem;
    align-items: start;
}

.contact-icon {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.whatsapp-icon {
    color: #25D366;
}

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

.contact-method:hover .whatsapp-icon {
    color: #128C7E;
}

.contact-method h4 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-secondary);
}

.contact-method a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.contact-method a:hover {
    color: var(--primary-color);
}

.contact-method:has(.whatsapp-icon) a:hover {
    color: #25D366;
}

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.btn-full {
    width: 100%;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-brand .logo-collabo,
.footer-brand .logo-core {
    color: white;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    max-width: 300px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

@media (max-width: 968px) {
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

.footer-column h4 {
    margin-bottom: 1rem;
    font-size: 1rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive Design */
@media (max-width: 968px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        padding: 2rem;
        transition: left 0.3s ease;
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .btn-contacto,
    .btn-whatsapp {
        width: 100%;
        justify-content: center;
        margin-top: 0.5rem;
    }
    
    .lang-selector {
        width: 100%;
        margin-top: 0.5rem;
        justify-content: center;
    }
    
    .lang-buttons {
        gap: 0.75rem;
    }
    
    .lang-btn {
        padding: 0.5rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .lang-btn .flag {
        font-size: 1.2rem;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .services-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .process-timeline {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

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

.hero-content,
.service-card,
.process-step,
.advantage-card {
    animation: fadeInUp 0.6s ease-out;
}