body {
    font-family: Arial, sans-serif;
    background: #f4f7fb;
    color: #1f2937;
    margin: 0;
    padding: 12px;
    box-sizing: border-box;
}

* {
    box-sizing: border-box;
}

#pageWrap {
    max-width: 900px;
    margin: 0 auto;
    padding: 8px 8px 20px 8px;
}

h1 {
    margin-top: 6px;
    margin-bottom: 8px;
    font-size: 1.8rem;
    text-align: center;
}

#score {
    font-size: 1.1rem;
    font-weight: bold;
    margin-bottom: 14px;
    text-align: center;
}

button {
    display: block;
    margin: 10px auto;
}

#game {
    text-align: center;
}

.container {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 16px;
    margin: 18px auto;
    max-width: 900px;
    flex-wrap: wrap;
}

.card {
    background: white;
    border: 1px solid #dbe3ec;
    padding: 16px;
    border-radius: 16px;
    width: 240px;
    max-width: 100%;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.card p {
    font-size: 1.05rem;
    font-weight: bold;
    margin: 10px 0;
}

img {
    width: 130px;
    height: 130px;
    object-fit: contain;
    display: block;
    margin: 0 auto 10px auto;
}

button {
    margin-top: 10px;
    padding: 12px 18px;
    cursor: pointer;
    border: none;
    border-radius: 10px;
    background: #2563eb;
    color: white;
    font-size: 1rem;
    font-weight: bold;
    transition: background 0.2s ease, transform 0.1s ease, opacity 0.2s ease;
}

button:hover:not(:disabled) {
    background: #1d4ed8;
}

button:active:not(:disabled) {
    transform: scale(0.98);
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

#result {
    margin-top: 18px;
    font-size: 1rem;
    min-height: 44px;
    line-height: 1.4;
    font-weight: bold;
    text-align: center;
    padding: 0 6px;
}

#result.correct {
    color: #15803d;
}

#result.wrong {
    color: #b91c1c;
}

@media (max-width: 700px) {
    body {
        padding: 10px;
    }

    #pageWrap {
        padding: 4px 4px 14px 4px;
    }

    h1 {
        font-size: 1.45rem;
        margin-bottom: 6px;
    }

    #score {
        font-size: 1rem;
        margin-bottom: 12px;
    }

    .container {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin: 14px auto;
}

    .card {
    width: min(280px, 100%);
    padding: 14px;
    margin: 0 auto;
}

    .card p {
        font-size: 1rem;
        margin: 8px 0;
    }

    img {
        width: 110px;
        height: 110px;
    }

    button {
        width: 100%;
        max-width: 100%;
        margin-top: 8px;
    }

    #result {
        margin-top: 14px;
        font-size: 0.95rem;
        min-height: 36px;
    }
}