body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(30, 60, 114, 0.2);
    padding: 32px 24px;
    max-width: 350px;
    width: 100%;
    margin: 16px;
    text-align: center;
}

h1 {
    color: #1e3c72;
    margin-bottom: 24px;
    font-size: 1.7rem;
}

#question {
    font-size: 1.3rem;
    margin-bottom: 20px;
    font-weight: 600;
    color: #2a5298;
}

#choices {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 18px;
}

.choice-btn {
    padding: 12px;
    border: none;
    border-radius: 8px;
    background: #e3eafc;
    color: #1e3c72;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}
.choice-btn:hover, .choice-btn.selected {
    background: #2a5298;
    color: #fff;
}

#feedback {
    min-height: 24px;
    font-size: 1.1rem;
    margin-bottom: 10px;
}

#next-btn {
    padding: 10px 24px;
    border: none;
    border-radius: 8px;
    background: #1e3c72;
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s;
}
#next-btn:hover {
    background: #2a5298;
}

.subtitle {
    font-size: 1rem;
    color: #6b7a8f;
    margin-bottom: 16px;
    font-weight: 400;
    letter-spacing: 0.5px;
}

@media (max-width: 500px) {
    .container {
        padding: 18px 6px;
        max-width: 98vw;
    }
    h1 {
        font-size: 1.2rem;
    }
    #question {
        font-size: 1rem;
    }
    #next-btn, .choice-btn {
        font-size: 0.95rem;
        padding: 10px;
    }
}