body {
    margin: 0;
    padding: 20px;
    background-color: #f4f7f6;
    font-family: -apple-system, system-ui, sans-serif;
    color: #333;
}
header { text-align: center; margin-bottom: 20px; }
header h1 { margin: 0; color: #1b5e20; }
header p { font-size: 0.8rem; color: #777; }

#monitor {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 15px;
    max-width: 900px;
    margin: 0 auto;
}

.card {
    background: white;
    padding: 15px;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-top: 4px solid #2e7d32;
}

.card h2 {
    margin: 0;
    font-size: 0.9rem;
    color: #666;
    text-transform: uppercase;
}

.card .precio {
    font-size: 1.8rem;
    font-weight: 800;
    color: #1b5e20;
    margin: 10px 0;
}

.card .info {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: #888;
    border-top: 1px solid #eee;
    padding-top: 8px;
}