.vat-calculator {
    width: 100%;
}

.vat-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
    gap: 24px;
}

.vat-card {
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    background: #ffffff;
    padding: 22px;
}

.vat-card-title {
    margin-bottom: 18px;
    font-weight: 700;
}

.vat-mode-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 18px;
}

.vat-mode-item {
    cursor: pointer;
    margin: 0;
}

.vat-mode-item input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.vat-mode-item span {
    display: block;
    min-height: 82px;
    border: 1px solid #d9dee8;
    border-radius: 12px;
    padding: 14px;
    background: #f8fafc;
    transition: 0.2s ease;
}

.vat-mode-item strong {
    display: block;
    font-size: 16px;
    color: #111827;
}

.vat-mode-item small {
    display: block;
    margin-top: 4px;
    color: #6b7280;
}

.vat-mode-item input:checked + span {
    border-color: #0d6efd;
    background: rgba(13, 110, 253, 0.08);
}

.vat-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.vat-error {
    margin-top: 14px;
    color: #dc2626;
    font-weight: 600;
}

.vat-result-card {
    position: sticky;
    top: 15px;
    align-self: start;
}

.vat-result-main {
    margin-bottom: 16px;
    padding: 14px;
    border-radius: 12px;
    background: #f8fafc;
    font-size: 18px;
    font-weight: 700;
    color: #111827;
}

.vat-result-list {
    display: grid;
    gap: 10px;
}

.vat-result-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid #eef1f5;
}

.vat-result-row span {
    color: #6b7280;
}

.vat-result-row strong {
    text-align: right;
    color: #111827;
}

.vat-result-row-accent strong {
    color: #dc2626;
}

.vat-formula {
    margin-top: 16px;
    padding: 12px;
    border-radius: 10px;
    background: #f8fafc;
    color: #4b5563;
    font-size: 14px;
}

.vat-link-box {
    margin-top: 18px;
}

.vat-link-row {
    display: flex;
    gap: 10px;
}

.vat-link-row input {
    min-width: 0;
}

@media (max-width: 991px) {
    .vat-layout {
        grid-template-columns: 1fr;
    }

    .vat-result-card {
        position: static;
    }
}

@media (max-width: 575px) {
    .vat-card {
        padding: 16px;
    }

    .vat-mode-grid {
        grid-template-columns: 1fr;
    }

    .vat-link-row {
        flex-direction: column;
    }

    .vat-result-row {
        align-items: flex-start;
        flex-direction: column;
        gap: 4px;
    }

    .vat-result-row strong {
        text-align: left;
    }
}