/* Variables globales */
:root {
    --primary-color: #17a1f1; /* Azul principal */
    --secondary-color: #2a9d8f; /* Verde-azulado */
    --accent-color: #48cae4; /* Azul claro */
    --green-accent: #3acb8d; /* Verde claro */
    --dark-blue: #023e8a; /* Azul oscuro */
    --light-bg: #f8f9fa; /* Fondo claro */
    --dark-text: #333; /* Texto oscuro */
    --light-text: #f8f9fa; /* Texto claro */
    --gray-text: #6c757d; /* Texto gris */
    --border-radius: 8px; /* Radio de borde estándar */
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); /* Sombra estándar */
    --transition: all 0.3s ease; /* Transición estándar */
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark-text);
    background-color: #fff;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--dark-blue);
}

ul {
    list-style: none;
}

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

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

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--secondary-color);
}

.section-header p {
    color: var(--gray-text);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
}

/* Botones */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--dark-blue);
    color: var(--light-text);
}

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

.btn-secondary:hover {
    background-color: #238b7e;
    color: var(--light-text);
}

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

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--light-text);
}

/* Header y navegación */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    flex-direction: column;
}

.logo h1 {
    font-size: 1.8rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 0;
}

.logo p {
    font-size: 0.9rem;
    color: var(--secondary-color);
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 1.5rem;
}

nav ul li a {
    color: var(--dark-text);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

nav ul li a:hover::after,
nav ul li a.active::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    padding: 5rem 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.9) 0%, rgba(248,249,250,0.9) 100%), url('images/bg-pattern.svg');
    background-size: cover;
    background-position: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-content h2 {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero-content p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
    color: var(--gray-text);
}

.cta-buttons {
    display: flex;
    gap: 1rem;
}

.hero-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Sección de Depuradoras */
.depuradoras {
    padding: 5rem 0;
    background-color: var(--light-bg);
}

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

.depuradora-card {
    background-color: #fff;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.depuradora-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.depuradora-image {
    height: 200px;
    overflow: hidden;
}

.depuradora-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.depuradora-card:hover .depuradora-image img {
    transform: scale(1.05);
}

.depuradora-content {
    padding: 1.5rem;
}

.depuradora-content h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.depuradora-content p {
    margin-bottom: 1rem;
    color: var(--gray-text);
}

.depuradora-content ul {
    margin-bottom: 1.5rem;
}

.depuradora-content ul li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.depuradora-content ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

/* Sección de Beneficios */
.beneficios {
    padding: 5rem 0;
}

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

.beneficio-card {
    text-align: center;
    padding: 2rem;
    border-radius: var(--border-radius);
    background-color: #fff;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

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

.beneficio-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.beneficio-card:nth-child(2n) .beneficio-icon {
    color: var(--secondary-color);
}

.beneficio-card h3 {
    margin-bottom: 1rem;
    color: var(--dark-text);
}

.beneficio-card p {
    color: var(--gray-text);
}

/* Sección de Experiencia */
.experiencia {
    padding: 5rem 0;
    background-color: var(--light-bg);
}

.experiencia .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.experiencia-content h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.experiencia-content p {
    margin-bottom: 1.5rem;
    color: var(--gray-text);
}

.stats {
    display: flex;
    justify-content: space-between;
    margin: 2rem 0;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-text {
    color: var(--gray-text);
    font-size: 0.9rem;
}

.experiencia-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Sección de Testimonios */
.testimonios {
    padding: 5rem 0;
}

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

.testimonio {
    background-color: #fff;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
}

.testimonio-content {
    margin-bottom: 1.5rem;
    position: relative;
}

.testimonio-content p {
    font-style: italic;
    color: var(--gray-text);
}

.testimonio-content::before {
    content: '\201C';
    font-size: 4rem;
    color: rgba(0, 119, 182, 0.1);
    position: absolute;
    top: -20px;
    left: -10px;
}

.testimonio-author {
    display: flex;
    align-items: center;
}

.testimonio-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 1rem;
    object-fit: cover;
}

.testimonio-author h4 {
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
    color: var(--primary-color);
}

.testimonio-author p {
    font-size: 0.9rem;
    color: var(--gray-text);
}

/* Sección de Contacto */
.contacto {
    padding: 5rem 0;
    background-color: var(--light-bg);
}

.contacto-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contacto-info h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.contacto-info p {
    margin-bottom: 2rem;
    color: var(--gray-text);
}

.contacto-details {
    margin-top: 2rem;
}

.contacto-item {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.contacto-item i {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-right: 1rem;
    width: 20px;
}

.contacto-form {
    background-color: #fff;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 119, 182, 0.2);
}

.form-group.full-width {
    grid-column: 1 / -1;
}

/* Footer */
footer {
    background-color: var(--dark-blue);
    color: var(--light-text);
    padding: 4rem 0 2rem;
}

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

.footer-logo h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.footer-links h4,
.footer-social h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.footer-links h4::after,
.footer-social h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--accent-color);
}

.footer-links ul li {
    margin-bottom: 0.8rem;
}

.footer-links ul li a {
    color: var(--light-text);
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links ul li a:hover {
    opacity: 1;
    color: var(--accent-color);
}

.social-icons {
    display: flex;
    gap: 1rem;
}

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

.social-icons a:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Animaciones */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.success-message {
    text-align: center;
    padding: 2rem;
}

.success-message i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.success-message h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 992px) {
    .hero .container,
    .experiencia .container,
    .contacto-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .experiencia-content {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: #fff;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
        z-index: 1001;
        padding: 4rem 2rem;
    }
    
    nav.active {
        right: 0;
    }
    
    nav ul {
        flex-direction: column;
    }
    
    nav ul li {
        margin: 1rem 0;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .cta-buttons .btn {
        margin-bottom: 1rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .stats {
        flex-direction: column;
        gap: 2rem;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content h2 {
        font-size: 1.2rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .depuradoras-grid,
    .beneficios-grid,
    .testimonios-slider {
        grid-template-columns: 1fr;
    }
}