/* Hacker-style dark theme */
body {
    font-family: 'Courier New', Courier, monospace;
    background-color: #000;
    color: #00ff00;
    text-align: center;
    margin: 0;
    padding: 0;
}

/* Header */
header {
    padding: 20px;
    background-color: #111;
    border-bottom: 2px solid #00ff00;
}

header select, header input, header button {
    margin: 10px;
    padding: 10px;
    font-size: 1rem;
    border: 1px solid #00ff00;
    background: #000;
    color: #00ff00;
}

/* Quiz container - Full screen */
#quiz-container {
    width: 80%;
    max-width: 800px;
    margin: 20px auto;
    padding: 30px;
    border: 2px solid #00ff00;
    border-radius: 10px;
    box-shadow: 0 0 20px #00ff00;
    min-height: 400px;
}

/* Question text */
#question {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 30px;
}

/* Options buttons */
#options button {
    display: block;
    width: 100%;
    margin: 15px auto;
    padding: 15px;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    background-color: #00ff00;
    color: #000;
    border: none;
    border-radius: 5px;
    transition: all 0.3s;
}

/* Button hover effect */
#options button:hover {
    background-color: #008000;
    color: #fff;
}

/* Feedback message */
#feedback {
    font-size: 1.5rem;
    margin-top: 20px;
}

/* Attempts message */
#attempts {
    font-size: 1.2rem;
    margin-top: 10px;
}

/* Next button */
#next-btn {
    margin-top: 30px;
    padding: 12px 25px;
    font-size: 1.2rem;
    font-weight: bold;
    background-color: #555;
    color: #000;
    border: none;
    border-radius: 5px;
    cursor: not-allowed;
    transition: all 0.3s;
}

#next-btn:enabled {
    background-color: #00ff00;
    color: #000;
    cursor: pointer;
}

#next-btn:enabled:hover {
    background-color: #008000;
    color: #fff;
}