.main-wrapper {
    margin-left: 126px;
    margin-top: 26px;
    min-height: calc(100vh - var(--header-height));
    padding: 2rem;
}

.page-header {
    margin-bottom: 2rem;
}

    .page-header h2 {
        color: var(--primary-color);
        font-size: 1.8rem;
        margin-bottom: 0.5rem;
    }

    .page-header p {
        color: var(--text-secondary);
    }

.card {
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.invoice-header-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
}

.form-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-label {
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: border-color 0.3s;
}

    .form-control:focus {
        outline: none;
        border-color: var(--primary-color);
        box-shadow: 0 0 0 3px rgba(45, 95, 127, 0.1);
    }

    .form-control:disabled {
        background: #f8f9fa;
    }

textarea.form-control {
    min-height: 100px;
    resize: vertical;
    font-family: inherit;
}

.supplier-lookup {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    padding: 0.75rem 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1rem;
}

.section-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

.table-container {
    overflow-x: auto;
    margin: 1.5rem 0;
    border-radius: var(--radius-sm);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.items-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    min-width: 1200px;
}

    .items-table thead {
        background: linear-gradient(135deg, #2d5f7f 0%, #1e4159 100%);
        color: white;
    }

    .items-table th {
        padding: 1rem 0.5rem;
        text-align: left;
        font-weight: 600;
        font-size: 0.85rem;
        white-space: nowrap;
    }

    .items-table td {
        padding: 0.75rem 0.5rem;
        border-bottom: 1px solid var(--border-color);
    }

    .items-table tbody tr:hover {
        background: #f8f9fa;
    }

.table-input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.9rem;
}

    .table-input:focus {
        outline: none;
        border-color: var(--primary-color);
    }

    .table-input.highlight {
        background: #fff3cd;
    }

.add-row-btn {
    background: var(--secondary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

    .add-row-btn:hover {
        opacity: 0.9;
    }

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.totals-box {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
}

.total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

    .total-row:last-child {
        border-bottom: none;
    }

.total-label {
    font-weight: 500;
    color: var(--text-secondary);
}

.total-input {
    width: 150px;
    padding: 0.5rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    text-align: right;
    font-weight: 500;
}

    .total-input:focus {
        outline: none;
        border-color: var(--primary-color);
    }

.total-with-percent {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.percent-input {
    width: 70px;
    padding: 0.5rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    text-align: center;
}

.grand-total {
    background: var(--primary-color);
    color: white;
    padding: 1rem;
    margin-top: 1rem;
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.btn {
    padding: 0.85rem 2rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    min-width: 130px;
}

    .btn:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-success {
    background: var(--secondary-color);
    color: white;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-remove {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: bold;
    font-size: 1rem;
}

@media (max-width: 1200px) {
    .invoice-header-section, .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .main-wrapper {
        margin-left: 0;
    }
}

/* Supplier Lookup Modal */
.supplier-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

    .supplier-modal.show {
        display: flex;
    }

.supplier-modal-dialog {
    background: white;
    border-radius: 10px;
    width: 90%;
    max-width: 900px;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    display: flex;
    flex-direction: column;
}

.supplier-modal-header {
    background: linear-gradient(135deg, #2d5f7f 0%, #1e4159 100%);
    color: white;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.supplier-modal-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0;
}

.supplier-modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.8rem;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

    .supplier-modal-close:hover {
        background: rgba(255, 255, 255, 0.2);
    }

.supplier-modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

.supplier-search-box {
    margin-bottom: 1.5rem;
}

.supplier-search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #dee2e6;
    border-radius: 6px;
    font-size: 0.95rem;
}

    .supplier-search-input:focus {
        outline: none;
        border-color: #2d5f7f;
    }

.supplier-table-container {
    overflow-x: auto;
    border-radius: 6px;
    border: 1px solid #dee2e6;
}

.supplier-table {
    width: 100%;
    border-collapse: collapse;
}

    .supplier-table thead {
        background: linear-gradient(135deg, #2d5f7f 0%, #1e4159 100%);
        color: white;
    }

    .supplier-table th {
        padding: 1rem;
        text-align: left;
        font-weight: 600;
        font-size: 0.9rem;
    }

    .supplier-table td {
        padding: 0.75rem 1rem;
        border-bottom: 1px solid #dee2e6;
    }

    .supplier-table tbody tr {
        cursor: pointer;
        transition: background 0.3s;
    }

        .supplier-table tbody tr:hover {
            background: #f0f4f8;
        }

        .supplier-table tbody tr.selected {
            background: #e3f2fd;
            font-weight: 600;
        }

.party-badge {
    padding: 0.3rem 0.6rem;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 500;
}

.party-badge-supplier {
    background: #cfe2ff;
    color: #084298;
}

.party-badge-customer {
    background: #d1e7dd;
    color: #0f5132;
}

.party-badge-both {
    background: #e7e7ff;
    color: #4a00ff;
}

.supplier-modal-footer {
    padding: 1.5rem 2rem;
    border-top: 2px solid #dee2e6;
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

.btn-select {
    background: #5cb85c;
    color: white;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
}

    .btn-select:hover {
        background: #4a9d4a;
    }

    .btn-select:disabled {
        background: #ccc;
        cursor: not-allowed;
    }

.empty-state {
    text-align: center;
    padding: 3rem;
    color: #6c757d;
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/*item section/* Item Lookup Modal */
.item-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

    .item-modal.show {
        display: flex;
    }

.item-modal-dialog {
    background: white;
    border-radius: 10px;
    width: 95%;
    max-width: 1100px;
    max-height: 85vh;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    display: flex;
    flex-direction: column;
}

.item-modal-header {
    background: linear-gradient(135deg, #2d5f7f 0%, #1e4159 100%);
    color: white;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.item-modal-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0;
}

.item-modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.8rem;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

    .item-modal-close:hover {
        background: rgba(255, 255, 255, 0.2);
    }

.item-modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

.item-search-filters {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.item-search-input, .item-filter-select {
    padding: 0.75rem 1rem;
    border: 2px solid #dee2e6;
    border-radius: 6px;
    font-size: 0.95rem;
}

    .item-search-input:focus, .item-filter-select:focus {
        outline: none;
        border-color: #2d5f7f;
    }

.item-table-container {
    overflow-x: auto;
    border-radius: 6px;
    border: 1px solid #dee2e6;
}

.item-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 900px;
}

    .item-table thead {
        background: linear-gradient(135deg, #2d5f7f 0%, #1e4159 100%);
        color: white;
    }

    .item-table th {
        padding: 1rem;
        text-align: left;
        font-weight: 600;
        font-size: 0.9rem;
    }

    .item-table td {
        padding: 0.75rem 1rem;
        border-bottom: 1px solid #dee2e6;
    }

    .item-table tbody tr {
        cursor: pointer;
        transition: background 0.3s;
    }

        .item-table tbody tr:hover {
            background: #f0f4f8;
        }

        .item-table tbody tr.selected {
            background: #e3f2fd;
            font-weight: 600;
        }

.item-image-thumb {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 4px;
    border: 1px solid #dee2e6;
}

.stock-badge {
    padding: 0.3rem 0.6rem;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 500;
}

.stock-badge-high {
    background: #d4edda;
    color: #155724;
}

.stock-badge-low {
    background: #fff3cd;
    color: #856404;
}

.stock-badge-out {
    background: #f8d7da;
    color: #721c24;
}

.item-modal-footer {
    padding: 1.5rem 2rem;
    border-top: 2px solid #dee2e6;
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

.btn-select-item {
    background: #5cb85c;
    color: white;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
}

    .btn-select-item:hover {
        background: #4a9d4a;
    }

    .btn-select-item:disabled {
        background: #ccc;
        cursor: not-allowed;
    }

.item-empty-state {
    text-align: center;
    padding: 3rem;
    color: #6c757d;
}

.item-empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Item lookup icon in table */
.item-lookup-icon {
    background: #2d5f7f;
    color: white;
    border: none;
    padding: 0.4rem 0.6rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    margin-left: 0.3rem;
}

    .item-lookup-icon:hover {
        background: #1e4159;
    }