.bip-vat-calculator {
    max-width: 520px;
    margin: 25px auto;
    padding: 20px;
    border: 2px solid #003366;
    background: #eef4f9;
    color: #003366;
    border-radius: 10px;
    font-family: Arial, sans-serif;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}
.bip-vat-calculator h3 {
    text-align: center;
    margin-bottom: 15px;
    color: #002244;
}
.bip-vat-row {
    display: flex;
    gap: 10px;
    margin: 10px 0;
    flex-wrap: wrap;
}
.bip-vat-row label {
    flex: 1 0 150px;
    font-weight: 600;
    line-height: 2;
}
.bip-vat-row input,
.bip-vat-row select {
    flex: 1 0 200px;
    padding: 8px 10px;
    border: 1px solid #003366;
    border-radius: 5px;
}
.bip-vat-buttons {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}
.bip-vat-btn {
    flex: 1;
    padding: 10px;
    border: none;
    color: #fff;
    cursor: pointer;
    border-radius: 6px;
}
.bip-vat-btn.calc { background: #005bbb; }
.bip-vat-btn.calc:hover { background: #003f88; }
.bip-vat-btn.clear { background: #888; }
.bip-vat-btn.clear:hover { background: #555; }

.bip-vat-result {
    margin-top: 18px;
    padding: 12px;
    background: #ffffff;
    border: 1px solid #003366;
    border-radius: 6px;
    display: none;
}
.bip-propys {
    margin-top: 12px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 8px;
}
.bip-copy {
    cursor: pointer;
    font-size: 16px;
    opacity: .6;
}
.bip-copy:hover { opacity: 1; }