body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    margin: 0;
    padding: 20px;
}

.activity-card {
    background: white;
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 18px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.activity-header {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
}

.activity-icon {
    font-size: 24px;
    margin-right: 10px;
}

.activity-stats {
    font-size: 14px;
    color: #333;
}

.stat {
    display: inline-block;
    margin-right: 12px;
}