:root {
--primary: #04636c;
--secondary: #c904a3;
--accent: #00a8e8;
--light: #f8f9fa;
--dark: #212529;
--success: #28a745;
--gray: #6c757d;
--light-gray: #e9ecef;
--transition: all 0.3s ease;
}


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

body {
    font-family: 'Montserrat', sans-serif;
    min-height: 100vh;
    color: #444;
    line-height: 1.6;
    overflow-x: hidden;
    margin: 0;
}

/* Header y navegación */
header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}
.logoAvanza   {
    width: 200px; /* La imagen se ajusta al 100% del contenedor */
    height: 80px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}



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

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 2rem;
}

nav ul li a {
    color: #010b0c;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

nav ul li a:hover {
    color: var(--accent);
}

.mobile-menu {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 12rem 2rem 6rem;
    text-align: center;
}

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

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.btn {
    display: inline-block;
    background-color: var(--accent);
    color: white;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background-color: #c0392b;
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid white;
    margin-left: 1rem;
}

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

/* Secciones generales */
section {
    padding: 5rem 2rem;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--accent);
}

.section-title p {
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

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

/* Qué es Ciencia de Datos */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.about-text p {
    margin-bottom: 1.5rem;
}

.disciplines {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}

.discipline {
    background-color: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.discipline:hover {
    transform: translateY(-5px);
}

        .discipline h4 {
            color: var(--secondary);
            margin-bottom: 0.5rem;
        }

        .about-image {
            background-color: var(--light);
            border-radius: 10px;
            padding: 2rem;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .data-visual {
            width: 1000px;
            height: 800px;
            background: linear-gradient(135deg, #3498db, #2c3e50);
            border-radius: 8px;
            position: relative;
            overflow: hidden;
        }

        /* Metodología */
        .methodology {
            background-color: var(--light);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }

        .step {
            background-color: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
            text-align: center;
            transition: var(--transition);
            position: relative;
        }

        .step:hover {
            transform: translateY(-10px);
        }

        .step-number {
            position: absolute;
            top: -20px;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 40px;
            background-color: var(--accent);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.2rem;
        }

        .step h3 {
            color: var(--primary);
            margin: 1.5rem 0 1rem;
        }

        .step-icon {
            font-size: 2.5rem;
            color: var(--secondary);
            margin-bottom: 1rem;
        }

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

        .service-card {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }

        .service-header {
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            color: white;
            padding: 1.5rem;
            text-align: center;
        }

        .service-header h3 {
            font-size: 1.5rem;
        }

        .service-body {
            padding: 1.5rem;
        }

        .service-features {
            list-style: none;
            margin: 1.5rem 0;
        }

        .service-features li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #eee;
            position: relative;
            padding-left: 1.5rem;
        }

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

        /* Beneficios */
        .benefits {
            background-color: var(--primary);
            color: white;
        }

        .benefits .section-title h2 {
            color: white;
        }

        .benefits .section-title p {
            color: rgba(255,255,255,0.8);
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }

        .benefit-card {
            background-color: rgba(255,255,255,0.1);
            padding: 2rem;
            border-radius: 8px;
            text-align: center;
            backdrop-filter: blur(10px);
            transition: var(--transition);
        }

        .benefit-card:hover {
            background-color: rgba(255,255,255,0.15);
            transform: translateY(-5px);
        }

        .benefit-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: var(--secondary);
        }

        .benefit-card h3 {
            margin-bottom: 1rem;
        }

        /* Casos de éxito */
        .case-studies {
            background-color: var(--light);
        }

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

        .case-card {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .case-header {
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            color: white;
            padding: 1.5rem;
        }

        .case-header h3 {
            font-size: 1.3rem;
        }

        .case-body {
            padding: 1.5rem;
        }

        .case-results {
            margin-top: 1.5rem;
        }

        .result-item {
            display: flex;
            justify-content: space-between;
            padding: 0.5rem 0;
            border-bottom: 1px solid #eee;
        }

        .result-value {
            font-weight: bold;
            color: var(--success);
        }

        /* Proceso de trabajo */
        .process-timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .process-timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 4px;
            background-color: var(--secondary);
            transform: translateX(-50%);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 3rem;
            width: 50%;
            padding: 0 2rem;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
        }

        .timeline-content {
            background-color: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
            position: relative;
        }

        .timeline-item:nth-child(odd) .timeline-content::after {
            content: '';
            position: absolute;
            top: 20px;
            right: -10px;
            width: 0;
            height: 0;
            border-top: 10px solid transparent;
            border-bottom: 10px solid transparent;
            border-left: 10px solid white;
        }

        .timeline-item:nth-child(even) .timeline-content::after {
            content: '';
            position: absolute;
            top: 20px;
            left: -10px;
            width: 0;
            height: 0;
            border-top: 10px solid transparent;
            border-bottom: 10px solid transparent;
            border-right: 10px solid white;
        }

        .timeline-marker {
            position: absolute;
            top: 20px;
            width: 20px;
            height: 20px;
            background-color: var(--accent);
            border-radius: 50%;
        }

        .timeline-item:nth-child(odd) .timeline-marker {
            right: -10px;
        }

        .timeline-item:nth-child(even) .timeline-marker {
            left: -10px;
        }

        /* CTA Section */
        .cta {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            text-align: center;
            padding: 5rem 2rem;
        }

        .cta h2 {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
        }

        .cta p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 2rem;
            opacity: 0.9;
        }

 /* Footer */
footer {
    background: var(--primary);
    color: white;
    padding: 60px 0 20px;
}
        
.footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
.footer-col h3 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        
.footer-col p {
            color: #ffffff;
        }
        
.footer-links {
            list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    text-decoration: none;
    color: var(--light-gray);
    transition: var(--transition);
}

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

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent);
    transform: translateY(-5px);
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--light-gray);
    font-size: 0.9rem;
}

        /* Responsive */
        @media (max-width: 992px) {
            .about-content {
                grid-template-columns: 1fr;
            }
            
            .hero h1 {
                font-size: 2.5rem;
            }
        }

        @media (max-width: 768px) {
            .mobile-menu {
                display: block;
            }
            
            nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--primary);
                flex-direction: column;
                padding: 1rem 0;
                box-shadow: var(--shadow);
            }
            
            nav ul.active {
                display: flex;
            }
            
            nav ul li {
                margin: 0;
                text-align: center;
                padding: 0.8rem 0;
            }
            
            .hero {
                padding: 10rem 1rem 4rem;
            }
            
            .hero h1 {
                font-size: 2rem;
            }
            
            .btn {
                display: block;
                width: 100%;
                margin-bottom: 1rem;
            }
            
            .btn-secondary {
                margin-left: 0;
            }
            
            .process-timeline::before {
                left: 20px;
            }
            
            .timeline-item {
                width: 100%;
                padding-left: 50px;
                padding-right: 0;
            }
            
            .timeline-item:nth-child(even) {
                left: 0;
            }
            
            .timeline-item:nth-child(odd) .timeline-marker,
            .timeline-item:nth-child(even) .timeline-marker {
                left: 10px;
            }
            
            .timeline-item:nth-child(odd) .timeline-content::after,
            .timeline-item:nth-child(even) .timeline-content::after {
                display: none;
            }
        
    }
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background-color: #fff;
        transition: left 0.3s;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }}

.dropdown-menu {
    position: absolute;
    width: 100%;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
    background-color: #f8f9fa;
    top: 100%;
}

.nav-item:hover .dropdown-menu {
    display: block;
}

.dropdown-menu::before {
    display: none;
}
.menu-toggle {
    display: block;
}

.nav-item {
    margin: 0;
    border-bottom: 1px solid #f0f0f0;
}

.nav-link {
    padding: 15px 20px;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    width: 220px;
    background-color: #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-radius: 5px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 20px;
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-bottom: 10px solid #fff;
}

.dropdown-item {
    display: block;
    padding: 12px 20px;
    text-decoration: none;
    color: #333;
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.2s;
}

.dropdown-item:last-child {
    border-bottom: none;
}

.dropdown-item:hover {
    background-color: #f8f9fa;
    color: #3498db;
    padding-left: 25px;
}