:root {
    --primary-color: #2C3E50; /* Azul oscuro corporativo de la imagen */
    --secondary-color: #BDC3C7; /* Tono plateado/gris claro */
    --dark-color: #1D2B38;
    --light-color: #FFFFFF;
    --text-color: #ECF0F1; /* Texto claro para el fondo oscuro */
    --font-family: 'Poppins', sans-serif;
    --box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    --border-radius: 10px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-color);
    line-height: 1.7;
    background-color: var(--primary-color);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Header y Navegación --- */
.header {
    background-color: transparent;
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s ease;
}

.header.scrolled {
    background-color: var(--dark-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

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

.logo {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--light-color);
    text-decoration: none;
    text-align: center;
}
.logo img {
    height: 50px;
    width: auto;
}

.nav-links {
    display: none;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--light-color);
    font-weight: 600;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--secondary-color);
}

/* --- Botones --- */
.btn {
    padding: 12px 24px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    text-align: center;
    border: none;
}

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

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

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

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

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

.btn-outline:hover {
    background-color: var(--secondary-color);
    color: var(--dark-color);
}

/* --- Sección Hero --- */
.hero {
    background-color: var(--primary-color);
    color: var(--light-color);
    text-align: center;
    padding: 80px 0;
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    color: var(--secondary-color);
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
}

.hero-buttons .btn {
    width: 80%;
    max-width: 280px;
}

/* --- Secciones Generales --- */
.section-title {
    text-align: center;
    font-size: 2.2rem;
    color: var(--light-color);
    margin-bottom: 3rem;
}

.services, .how-it-works, .cta {
    padding: 60px 0;
}

/* --- Servicios --- */
.services {
    background-color: var(--dark-color);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
}

.service-card {
    background-color: var(--primary-color);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid #4A6572;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.service-icon {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.service-card h3 {
    font-size: 1.4rem;
    color: var(--light-color);
    margin-bottom: 0.5rem;
}

/* --- Cómo Funciona --- */
.steps-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 40px;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: var(--secondary-color);
    color: var(--dark-color);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 1rem;
    border: 4px solid var(--dark-color);
}

.step h3 {
    font-size: 1.4rem;
    color: var(--light-color);
    margin-bottom: 0.5rem;
}

/* --- CTA --- */
.cta {
    background-color: var(--secondary-color);
    text-align: center;
}

.cta h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.cta p {
    font-size: 1rem;
    margin-bottom: 2rem;
    color: #34495E;
}


/* --- Contact Info --- */
.contact-info {
    background-color: var(--dark-color);
    padding: 60px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
}

.contact-card {
    background-color: var(--primary-color);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid #4A6572;
}

.contact-card p {
    margin-bottom: 1.5rem;
}

.contact-icon {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.contact-card h3 {
    font-size: 1.4rem;
    color: var(--light-color);
    margin-bottom: 0.5rem;
}

/* --- Footer --- */
.footer {
    background-color: var(--dark-color);
    color: var(--secondary-color);
    padding: 50px 0 20px;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 30px;
}

.footer h3, .footer h4 {
    color: var(--light-color);
    margin-bottom: 1rem;
}

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

.footer-links a, .footer-social a {
    color: var(--secondary-color);
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.footer-links a:hover, .footer-social a:hover {
    color: var(--light-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #4A6572;
    font-size: 0.9rem;
}

/* --- Estilos para Tablet y Escritorio (min-width: 768px) --- */
@media (min-width: 768px) {
    .logo {
        font-size: 1.8rem;
    }

    .nav-links {
        display: flex;
    }
    
    .nav-links li {
        margin-left: 30px;
    }

    .hero {
        padding: 120px 0;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-buttons {
        flex-direction: row;
        justify-content: center;
    }

    .hero-buttons .btn {
        width: auto;
        margin: 0 10px;
    }

    .section-title {
        font-size: 2.5rem;
    }

    .services, .how-it-works, .cta {
        padding: 80px 0;
    }

    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .service-card {
        padding: 40px;
    }

    .steps-container {
        flex-direction: row;
        justify-content: space-between;
        gap: 30px;
    }

    .step-number {
        width: 60px;
        height: 60px;
        font-size: 1.8rem;
    }

    .footer {
        text-align: left;
    }

    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        grid-template-columns: 2fr 1fr 1fr;
        gap: 40px;
    }

    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}