body {
    font-family: 'Arial', sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 20px;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    box-sizing: border-box;
}

.container {
    background-color: #ffffff;
    padding: 35px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
    width: 100%;
    max-width: 480px;
}

#feit-box {
    border-left: 5px solid #d32f2f;
    background-color: #f9f9f9;
    padding: 25px;
    margin-bottom: 30px;
    border-radius: 4px;
    text-align: left;
    animation: popIn 0.4s ease-out;
}

#feit-box h2 {
    margin: 0 0 15px 0;
    font-size: 1.4rem;
    color: #111111;
    font-weight: bold;
    border-bottom: 2px solid #eeeeee;
    padding-bottom: 10px;
}

#feitje {
    margin: 0;
    color: #555;
    font-size: 1.1rem;
    line-height: 1.6;
}

@keyframes popIn {
    0% { opacity: 0; transform: scale(0.98); }
    100% { opacity: 1; transform: scale(1); }
}

button {
    background-color: #d32f2f;
    color: white;
    border: none;
    padding: 12px 22px;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 25px;
    cursor: pointer;
    margin: 5px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

button:hover {
    background-color: #c71c1c;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

button .icon {
    margin-right: 8px;
    font-size: 1.2rem;
}

.button-row {
    display: flex;
    justify-content: center;
    gap: 10px;
}

@media (max-width: 600px) {
    body {
        padding: 15px;
    }

    .container {
        padding: 20px;
    }

    #feit-box {
        padding: 20px;
        margin-bottom: 20px;
    }

    #feit-box h2 {
        font-size: 1.25rem;
    }

    #feitje {
        font-size: 1.05rem;
    }

    .button-row {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }

    button {
        width: 100%;
        max-width: 320px;
        padding: 14px;
        font-size: 1.05rem;
    }
}