/* 1. Variables de Color y Reset */
:root {
    --primary-blue: #2c3e50;    /* Azul oscuro del texto principal */
    --accent-blue: #a5cad2;     /* Azul claro del isotipo */
    --gold: #e9bc5a;            /* Dorado/Mostaza del perfil y eslogan */
    --light-bg: #f4f7f8;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--primary-blue);
    background-color: var(--white);
    overflow-x: hidden;
}

/* 2. Layout y Contenedores */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

h1, h2, h3 {
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

/* 3. Navegación */
header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--primary-blue);
    font-weight: 600;
    transition: var(--transition);
}

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

/* 4. Hero Section */
.hero {
    background: linear-gradient(rgba(44, 62, 80, 0.8), rgba(44, 62, 80, 0.8)), 
                url('https://images.unsplash.com/photo-1522202176988-66273c2fd55f?auto=format&fit=crop&w=1350&q=80'); /* Imagen de fondo profesional */
    background-size: cover;
    background-position: center;
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 15px;
}

/* 5. Botones */
.btn-primary, .btn-nav {
    background-color: var(--gold);
    color: var(--primary-blue);
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 700;
    display: inline-block;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background-color: #d4a746;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--accent-blue);
    color: var(--primary-blue);
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    display: block;
    text-align: center;
}

/* 6. Pricing Cards (Adaptables) */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.price-card {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    border: 1px solid #eee;
    text-align: center;
    transition: var(--transition);
}

.price-card.highlight {
    border: 2px solid var(--gold);
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.price {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 20px 0;
    color: var(--primary-blue);
}

/* 7. Sección Psicología (Modo Oscuro/Contraste) */
.bg-dark {
    background-color: var(--primary-blue);
    color: var(--white);
}

.price-card-alt {
    background: rgba(255,255,255,0.05);
    padding: 30px;
    border-radius: 8px;
    border-left: 4px solid var(--accent-blue);
}

.highlight-alt {
    border-left-color: var(--gold);
    background: rgba(255,255,255,0.1);
}

.price-tag {
    display: block;
    color: var(--gold);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

/* 8. Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Aquí entraría el menú hamburguesa con JS */
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }

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

    .price-card.highlight {
        transform: scale(1);
    }
}

/* Botón Flotante de WhatsApp */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.2);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.whatsapp-icon {
    width: 35px;
    height: 35px;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background-color: #128c7e;
    box-shadow: 2px 5px 15px rgba(0,0,0,0.3);
}

/* Adaptabilidad para móviles */
@media (max-width: 768px) {
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }
    .whatsapp-icon {
        width: 30px;
        height: 30px;
    }
}