.metal-flex-container {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.metal-box {
    flex: 1 1 400px;
    padding: 20px;
    border-radius: 6px;
    box-sizing: border-box;
}

.metal-gold {
    background: #ffd70022;
    border: 1px solid #ffd700;
}

.metal-silver {
    background: #eeeeee;
    border: 1px solid #cccccc;
}

.metal-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 10px;
}

.metal-table th, .metal-table td {
    padding: 6px;
    border-bottom: 1px solid #ddd;
}

.metal-total,
#metal-grand-total {
    font-weight: bold;
    font-size: 1.1em;
    padding: 10px 0;
}

.metal-full-row {
    margin-top: 20px;
    background: #f5f5f5;
    padding: 10px;
    border: 1px solid #ccc;
}

.highlight {
    animation: fadeHighlight 1s ease-in-out;
}

@keyframes fadeHighlight {
    from {
        background-color: #fffcc0;
    }
    to {
        background-color: transparent;
    }
}