/* Responsive Styles */

@media (max-width: 768px) {
    nav {
        padding: 12px 20px;
        top: 10px;
        left: 3%;
        right: 3%;
        width: 94%;
    }

    .nav-brand span {
        font-size: 16px;
    }

    .nav-brand img {
        height: 32px;
    }

    .nav-admin-btn {
        padding: 8px 16px;
        font-size: 14px;
    }

    main {
        margin-top: 100px;
        padding: 0 3%;
    }

    .form-container {
        padding: 24px;
    }

    .tabs {
        flex-direction: column;
    }

    .tab-btn {
        width: 100%;
        text-align: left;
        border-bottom: 2px solid var(--gray-200);
        border-left: 3px solid transparent;
    }

    .tab-btn.active {
        border-bottom-color: var(--gray-200);
        border-left-color: var(--black);
    }

    .form-steps {
        flex-direction: column;
        gap: 20px;
    }

    .form-steps::before {
        display: none;
    }

    .step {
        flex-direction: row;
        justify-content: flex-start;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .catalogue-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 15px;
    }

    .catalogue-item img {
        height: 120px;
    }

    .business-info {
        padding: 24px;
    }

    .business-info h2 {
        font-size: 22px;
    }

    .business-contact {
        flex-direction: column;
        align-items: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .table-container {
        overflow-x: scroll;
    }

    table {
        min-width: 600px;
    }

    .modal-content {
        width: 95%;
        padding: 24px;
    }

    .invoice-container {
        padding: 20px;
    }

    .invoice-header {
        flex-direction: column;
        gap: 20px;
    }

    .invoice-details {
        text-align: left;
    }

    .invoice-parties {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .invoice-totals {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .nav-brand span {
        display: none;
    }

    .form-steps {
        font-size: 12px;
    }

    .step-number {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }

    .catalogue-grid {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }
}