body {
    background: #1e1e1e;
    font-family: Arial, Helvetica, sans-serif;
    color: #eee;
    margin: 0;
    padding: 40px; 
}

.container {
    max-width: 700px;
    margin: auto;
}

h1 {
    text-align: center;
    margin-bottom: 30px;
}

.card {
    background: #2b2b2b;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 0 10px #0006;
}

button {
    padding: 8px 15px; 
    background: #4caf50;
    border: none; 
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background: #43a047;
}