body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    margin: 0;
    padding: 0;
}

main {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
}

header {
    background: #4CAF50;
    color: #fff;
    padding: 10px;
    text-align: center;
}

header h1 {
    margin: 0;
}

header button {
    background: #f44336;
    color: #fff;
    border: none;
    padding: 10px;
    cursor: pointer;
}

header button:hover {
    background: #d32f2f;
}

form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

form label {
    font-weight: bold;
}

form input {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

form button {
    background: #4CAF50;
    color: #fff;
    border: none;
    padding: 10px;
    cursor: pointer;
    border-radius: 5px;
}

form button:hover {
    background: #45a049;
}

p {
    margin: 10px 0;
}

ul {
    list-style: none;
    padding: 0;
}

ul li {
    margin-bottom: 10px;
}

button {
    background: #2196F3;
    color: #fff;
    border: none;
    padding: 10px;
    cursor: pointer;
    border-radius: 5px;
}

button:hover {
    background: #1976D2;
}