html, body{
    height: 100%;
    margin: 0%;
    padding: 0%;
}
body{
    background-image: url(fitness-park-9.webp);
    background-size: cover;
    margin: 0%;
    padding: 0%;
    min-height: 100vh;
    background-attachment: fixed;
    background-repeat: no-repeat;
    position: relative;
     
    z-index: 1;
}
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;
    
}
/* 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;
}
/* --- DISEÑO DEL PLAN --- */
main {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 20px;
}

.intro {
    text-align: center;
    margin-bottom: 3rem;
}

.block-title {
    border-left: 5px solid var(--primary);
    padding-left: 15px;
    margin-top: 2rem;
    color: var(--dark);
}

.grid-plan {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 2rem;
}

.week-card {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    background: white;
    transition: box-shadow 0.3s ease;
}

.week-card:hover {
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.week-tag {
    background: var(--light-grey);
    padding: 4px 8px;
    font-size: 0.75rem;
    font-weight: bold;
    border-radius: 4px;
}

.highlight {
    border: 2px solid var(--primary);
    background-color: #f0f7ff;
}

.deload {
    background-color: #fff9f0;
    border: 1px dashed #e67e22;
}