body {
    background-color: #121212;
    color: #f1c40f;
    font-family: 'Trebuchet MS', sans-serif;
    text-align: center;
    padding-top: 50px;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

h1, h2 {
    text-shadow: 2px 2px 4px #000;
    font-size: 2em;
    margin: 20px 0;
}

button {
    background-color: #1a237e;
    color: gold;
    padding: 12px 25px;
    font-size: 1.2em;
    margin: 10px;
    border: 2px solid gold;
    border-radius: 10px;
    cursor: pointer;
    transition: 0.3s;
    box-sizing: border-box;
}

button:hover {
    background-color: gold;
    color: #1a237e;
}

.quiz-container {
    background-color: #1e1e1e;
    margin: 20px auto;
    padding: 30px;
    width: 90%;
    max-width: 800px;
    border-radius: 15px;
    box-shadow: 0 0 20px #f1c40f;
    box-sizing: border-box;
}

.choices-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin: 30px 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.choice-btn {
    text-align: left;
    padding: 15px 20px;
    min-height: 60px;
    display: flex;
    align-items: center;
    font-size: 1.1em;
    width: 100%;
    box-sizing: border-box;
}

.choice-label {
    font-weight: bold;
    color: #f1c40f;
    margin-right: 8px;
    min-width: 20px;
}

.next-btn {
    background-color: #27ae60;
    color: white;
    border: 2px solid #2ecc71;
    font-size: 1.3em;
    padding: 12px 30px;
    margin-top: 20px;
}

.next-btn:hover {
    background-color: #2ecc71;
    color: white;
}

/* Media Queries untuk Responsive Design */
@media screen and (max-width: 768px) {
    body {
        padding: 10px;
        padding-top: 30px;
    }
    
    h1, h2 {
        font-size: 1.5em;
        margin: 15px 0;
    }
    
    .quiz-container {
        width: 95%;
        padding: 20px;
        margin: 10px auto;
    }
    
    .choices-grid {
        grid-template-columns: 1fr;
        gap: 12px;
        margin: 20px 0;
        max-width: 100%;
    }
    
    .choice-btn {
        padding: 15px 20px;
        min-height: 55px;
        font-size: 1.05em;
        text-align: center;
        justify-content: center;
        border-radius: 12px;
        /* Touch-friendly spacing */
        margin: 5px 0;
    }
    
    .choice-btn:active {
        transform: scale(0.98);
    }
    
    button {
        font-size: 1.1em;
        padding: 10px 20px;
        margin: 8px;
        min-height: 44px; /* Minimum touch target size */
    }
    
    .next-btn {
        font-size: 1.2em;
        padding: 12px 30px;
        margin-top: 20px;
        min-height: 50px;
    }
}

@media screen and (max-width: 480px) {
    body {
        padding: 5px;
        padding-top: 20px;
    }
    
    h1, h2 {
        font-size: 1.3em;
        margin: 10px 0;
    }
    
    .quiz-container {
        width: 98%;
        padding: 15px;
        margin: 5px auto;
        border-radius: 10px;
    }
    
    .choices-grid {
        gap: 10px;
        margin: 15px 0;
    }
    
    .choice-btn {
        padding: 12px 15px;
        min-height: 50px;
        font-size: 1em;
        border-radius: 10px;
        /* Better spacing for small screens */
        margin: 3px 0;
    }
    
    .choice-label {
        min-width: 18px;
        margin-right: 8px;
        font-size: 1.1em;
    }
    
    button {
        font-size: 1em;
        padding: 10px 16px;
        margin: 6px;
        border-radius: 8px;
        min-height: 44px;
    }
    
    .next-btn {
        font-size: 1.1em;
        padding: 10px 25px;
        min-height: 48px;
    }
}