:root {
    --blue: #0046be;
    --dark: #1a1a1a;
    --white: #ffffff;
    --gray: #f4f4f4;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: sans-serif; }

/* Contenedor Global */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Navbar Responsive */
.navbar {
    background: var(--dark);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    margin: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
}

.nav-menu li a {
    color: white;
    text-decoration: none;
    padding: 0 15px;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('https://images.unsplash.com/photo-1550745165-9bc0b252726f?auto=format&fit=crop&w=1200');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 100px 20px;
}

.hero-btns {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap; /* Evita que se amontonen en móvil */
    gap: 10px;
}

/* GRID DE PRODUCTOS (El secreto del responsive) */
.grid-productos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    padding: 20px 0;
}

.card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
}

.card img { width: 100%; height: auto; border-radius: 5px; }

/* MEDIA QUERIES PARA MÓVIL */
@media (max-width: 768px) {
    .menu-toggle { display: block; cursor: pointer; font-size: 1.5rem; }
    
    .nav-menu {
        display: none; /* Oculto por defecto en móvil */
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--dark);
        padding: 20px;
    }

    .nav-menu.active { display: flex; } /* Se activa con JS */
    
    .nav-menu li { margin: 10px 0; }
    
    .hero h1 { font-size: 1.8rem; }
}

/* Botones */
.btn { padding: 12px 25px; border-radius: 5px; text-decoration: none; font-weight: bold; }
.primary { background: var(--blue); color: white; }
.secondary { border: 2px solid white; color: white; }