* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif; 
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #202124; /* Google's dark background */
    color: #fff; /* Default text color for dark mode */
}

.container {
    text-align: center;
    padding: 40px; 
    background: #2e2f33; /* Darker container background */
    border: 1px solid #3c4043; /* Subtle dark border */
    border-radius: 8px; 
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3); /* Adjusted shadow for dark mode */
    max-width: 600px; 
}

header h1 {
    font-size: 3em; 
    margin-bottom: 40px;
    color: #e8eaed; /* Lighter text for contrast */
    font-weight: 400; 
}

main .quote {
    font-size: 1.6em; 
    margin-bottom: 30px;
    color: #bdc1c6; /* Google's gray for dark mode */
}

button {
    padding: 12px 20px; 
    font-size: 1.2em; 
    color: #fff;
    background-color: #1a73e8; /* Slightly lighter Google blue for dark mode*/
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease; 
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24); 
}

button:hover {
    background-color: #1769aa; /* Darker shade on hover */
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.34); /* Slightly elevated shadow */
}

footer p {
    font-size: 0.9em; 
    color: #80868b; /* Google's light gray for dark mode */
    margin-top: 30px;
}