@media screen and (max-width: 480px) {
    
    .container {
        width: 100%;
        padding: 10px;
    }

    
    .planes {
        display: flex;
        flex-direction: column;
        gap: 20px;
        padding: 0 10px;
    }

    .card {
        width: 100%;
        margin: 0 0 15px 0;
        padding: 15px;
        box-sizing: border-box; 
    }

    header h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }

    .btn {
        display: block;
        text-align: center;
        padding: 12px;
        font-size: 16px;
    }

    .breadcrumbs ul {
        flex-wrap: wrap;
        font-size: 14px;
    }
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    background-image: url(fitness-park-9.webp);
}

/* Migas de pan */
.breadcrumbs {
    background: #ffffff;
    padding: 12px 20px;
    border-bottom: 1px solid #ddd;
}

.breadcrumbs ul {
    list-style: none;
    display: flex;
    gap: 8px;
    font-size: 14px;
}

.breadcrumbs li::after {
    content: "›";
    margin-left: 8px;
}

.breadcrumbs li:last-child::after {
    content: "";
}

.breadcrumbs a {
    text-decoration: none;
    color: #007bff;
}

.breadcrumbs a:hover {
    text-decoration: underline;
}

/* Contenedor */
.container {
    max-width: 1100px;
    margin: 40px auto;
    padding: 0 20px;
}

header {
    margin-bottom: 30px;
}

h1{
    color: orange;
    text-align: center;
    font-family: serif;
    font-size: 25px;
    text-decoration:underline 2px solid;
    background-color: black;
    margin: 0;
    
}

/* Tarjetas de planes */
.planes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.card {
    background: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

.card h2 {
    font-size: 20px;
    margin-bottom: 10px;
}

.card p {
    margin-bottom: 15px;
}

.card ul {
    list-style: none;
    margin-bottom: 20px;
}

.card ul li {
    margin-bottom: 6px;
}

/* Botón */
.btn {
    display: inline-block;
    background: #28a745;
    color: #ffffff;
    padding: 10px 16px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
}

.btn:hover {
    background: #218838;
}