/* Variables y configuración base */
:root {
    --color-primary: #2196F3;    /* Azul vibrante */
    --color-secondary: #00BCD4;  /* Cian */
    --color-accent: #FF4081;     /* Rosa */
    --color-dark: #1A1A1A;       /* Negro suave */
    --color-light: #FFFFFF;
    --color-gray: #F5F5F5;
    --color-text: #333333;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    
    --border-radius: 8px;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* Reset y estilos base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header y Navegación */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--color-light);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

/* Menú de navegación */
.nav-menu-container {
    transition: all 0.3s ease;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-menu a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: var(--spacing-xs) var(--spacing-sm);
}

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

/* Botón de menú móvil */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    position: relative;
    transition: all 0.3s ease;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all 0.3s ease;
}

.hamburger::before { top: -6px; }
.hamburger::after { bottom: -6px; }

/* Secciones */
.section {
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-lg);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

/* Tarjetas de impacto */
.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.impact-card {
    background: var(--color-light);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.impact-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.impact-card h3 {
    padding: var(--spacing-sm);
    color: var(--color-primary);
}

.impact-details {
    padding: var(--spacing-sm);
}

/* Footer Styles */
.footer {
    background: linear-gradient(135deg, var(--color-dark) 0%, #1a237e 100%);
    color: var(--color-light);
    padding: 4rem 0 1rem;
    position: relative;
    margin-top: 4rem;
}

/* Footer Content Grid */
.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Footer Sections */
.footer-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.footer-section h3 {
    color: var(--color-primary);
    font-size: 1.4rem;
    font-weight: 600;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 2px;
    background: var(--color-primary);
}

/* Social Links */
.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    color: var(--color-light);
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.social-link:hover {
    color: var(--color-primary);
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

/* Contact Info */
.contact-info {
    list-style: none;
    padding: 0;
}

.contact-info li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.contact-info i {
    color: var(--color-primary);
    font-size: 1.2rem;
}

.contact-info a {
    color: var(--color-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Newsletter Form */
.newsletter-form {
    display: flex;
    gap: 0.5rem;
}

.newsletter-form input {
    flex: 1;
    padding: 0.8rem;
    border: none;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-light);
}

.btn-subscribe {
    padding: 0.8rem 1.5rem;
    background: var(--color-primary);
    color: var(--color-light);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

/* Footer Bottom */
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 3rem;
    padding-top: 1.5rem;
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
}

.footer-bottom-links a {
    color: var(--color-light);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

/* Responsive Footer */
@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .footer-bottom .container {
        flex-direction: column;
        text-align: center;
    }

    .footer-bottom-links {
        justify-content: center;
        flex-wrap: wrap;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-menu-container {
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        background: var(--color-light);
        padding: var(--spacing-sm);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
    }

    .nav-menu-container.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu {
        flex-direction: column;
        align-items: center;
    }

    .impact-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* Animaciones */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

/* Estilos para el video y sus controles */
.video-wrapper {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    object-fit: cover;
    z-index: 0;
}

.video-controls {
    position: absolute;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    gap: 1rem;
    z-index: 2;
}

.video-control,
.sound-control {
    background: rgba(0, 0, 0, 0.5);
    border: none;
    border-radius: 50%;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.video-control:hover,
.sound-control:hover {
    background: rgba(0, 0, 0, 0.7);
    transform: scale(1.1);
}

/* Responsive */
@media (max-width: 768px) {
    .video-controls {
        bottom: 1rem;
        right: 1rem;
    }

    .video-control,
    .sound-control {
        width: 2.5rem;
        height: 2.5rem;
    }
}

/* Sección de Datos */
.bg-dark {
    background: linear-gradient(135deg, var(--color-dark) 0%, #2C3E50 100%);
    color: var(--color-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-card h3 {
    color: var(--color-primary);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    margin: 1rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.stat-value span {
    font-size: 1rem;
    opacity: 0.8;
}

.stat-details {
    text-align: left;
    margin-top: 1.5rem;
}

.stat-main {
    font-size: 1.1rem;
    color: var(--color-light);
    margin-bottom: 1rem;
}

.stat-list {
    list-style: none;
    padding: 0;
}

.stat-list li {
    padding: 0.5rem 0;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
}

.stat-list li::before {
    content: '→';
    margin-right: 0.5rem;
    color: var(--color-primary);
}

.data-sources {
    margin-top: 4rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
}

.data-sources h4 {
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.data-sources ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.data-sources li {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* Animaciones para las estadísticas */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stat-value {
    animation: countUp 1s ease-out forwards;
    opacity: 0;
}

/* Media queries */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .stat-value {
        font-size: 2.5rem;
    }

    .data-sources ul {
        flex-direction: column;
    }
}

/* Sección de Acción */
.action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.action-card {
    background: var(--color-light);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

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

.action-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: inline-block;
    padding: 1rem;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    border-radius: 50%;
    color: var(--color-light);
}

.action-card h3 {
    color: var(--color-primary);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.action-list {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.action-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
}

.action-list li:last-child {
    border-bottom: none;
}

.action-impact {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-light);
    padding: 1rem;
    border-radius: var(--border-radius);
    text-align: center;
    margin-top: 1rem;
}

.impact-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.impact-unit {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-left: 0.5rem;
}

/* Recursos adicionales */
.action-resources {
    margin-top: 4rem;
    padding: 2rem;
    background: var(--color-gray);
    border-radius: var(--border-radius);
}

.action-resources h3 {
    text-align: center;
    color: var(--color-primary);
    margin-bottom: 2rem;
}

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

.resource-card {
    background: var(--color-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow);
}

.resource-card i {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.resource-card h4 {
    color: var(--color-dark);
    margin-bottom: 1rem;
}

.resource-card ul {
    list-style: none;
    padding: 0;
}

.resource-card li {
    margin: 0.5rem 0;
}

.resource-card a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.resource-card a:hover {
    color: var(--color-secondary);
}

/* Media queries */
@media (max-width: 768px) {
    .action-grid,
    .resources-grid {
        grid-template-columns: 1fr;
    }

    .action-card,
    .resource-card {
        padding: 1.5rem;
    }
}

/* Información del autor */
.author-info {
    text-align: center;
    margin: 1rem 0;
}

.author-info strong {
    color: var(--color-primary);
    font-weight: 600;
}

.footer-bottom {
    text-align: center;
    padding: 2rem 0 1rem;
}

.footer-bottom .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}