body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f4f4f4;
    color: #333;
}
h1 {
    color: #2c3e50;
    animation: pulse 2s infinite;
}
#challenge-box {
    background: white;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
#dashboard {
    background: #eaf2f8;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 8px;
    display: flex;
    justify-content: space-around;
}
#progress-bar-container {
    width: 200px;
    background-color: #ccc;
    border-radius: 10px;
    overflow: hidden;
}
#progress-bar {
    height: 15px;
    width: 0%;
    background-color: #3498db;
    transition: width 0.5s ease-in-out;
}
@keyframes pulse {
    0% { color: #2c3e50; }
    50% { color: #2980b9; }
    100% { color: #2c3e50; }
}