body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    background-color: #f5f5f5;
}

.container {
    max-width: 100%;
    margin: 0 auto;
    padding: 15px;
    background: white;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.responsive-img {
    max-width: 100%;
    height: auto;
    display: block;
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    .container {
        padding: 10px;
    }
    h1 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 5px;
    }
    .container {
        padding: 8px;
    }
    h1 {
        font-size: 1.3rem;
    }
}

h1, h2 {
    color: #333;
}

.hidden {
    display: none;
}

#login-form {
    margin-top: 20px;
}

input {
    display: block;
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

button {
    background: #007bff;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    background: #0056b3;
}

#stats-container {
    margin-top: 20px;
    padding: 15px;
    background: #f9f9f9;
    border-radius: 4px;
}