/* ============================================================
   Telbyte Telecomunicaciones — estilos globales (negro + azul + gris del logo)
   Usado por: catálogo, carrito, checkout, registro y el panel
   de administración (a través de includes/header.php)
   ============================================================ */

body {
    background: #060a11;
    font-family: 'Montserrat', 'Poppins', 'Segoe UI', sans-serif;
    color: #ffffff;
}

h1, h2, h3, h4, h5 {
    font-weight: 700;
    color: #ffffff;
}

/* Secciones con fondo gris suave para dar contraste sobre el blanco */
.seccion-gris {
    background: #0b1626;
}

.card {
    border: none;
    border-radius: 16px;
    box-shadow: 0 3px 14px rgba(0, 0, 0, .35);
    transition: .3s;
    background: #0d1520;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 28px rgba(21, 101, 216, .35);
}

.card img {
    object-fit: cover;
    border-radius: 16px 16px 0 0;
}

.hero {
    background: #0b1626;
    background-size: cover;
    height: 420px;
    display: flex;
    align-items: center;
    color: #ffffff;
}

.btn-dark {
    background: #2480f0;
    border-color: #2480f0;
}

.btn-dark:hover {
    background: #1565d8;
    border-color: #1565d8;
}

.btn-outline-dark:hover {
    background: #2480f0;
    color: #fff;
}

/* Navbar y footer claros (ver includes/navbar.php e includes/footer.php) */
.navbar-claro {
    background: #000000;
    box-shadow: 0 2px 10px rgba(21, 101, 216, .15);
}

.navbar-claro .navbar-brand,
.navbar-claro .nav-link {
    color: #ffffff !important;
}

.navbar-claro .nav-link:hover {
    color: #5aaeff !important;
}

.footer-claro {
    background: #000000 !important;
    color: #7f8da3 !important;
}

.footer-claro h5 {
    color: #ffffff;
}

/* Botón flotante de WhatsApp (igual en todas las páginas) */
.whatsapp {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 999;
    background: #25d366;
    color: #fff;
    border-radius: 50px;
    padding: 12px 22px;
    font-weight: 600;
    box-shadow: 0 5px 20px rgba(0, 0, 0, .25);
    text-decoration: none;
    transition: .3s;
}

.whatsapp:hover {
    transform: scale(1.05);
    background: #1ebc5a;
    color: #fff;
}

/* Barra de búsqueda fija (catálogo) */
.buscador-fijo {
    position: sticky;
    top: 56px; /* altura aproximada del navbar */
    z-index: 999;
    background: #000000;
    padding: 10px 0;
}

.buscador-contenedor {
    max-width: 500px;
    margin: auto;
}