/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-green: #4CAF50;
    --primary-green-hover: #45a049;
    --danger-red: #f44336;
    --danger-red-hover: #da190b;
    --bg-gray: #f5f5f5;
    --card-white: #ffffff;
    --text-dark: #333333;
    --text-light: #666666;
    --border-gray: #dddddd;
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 8px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-gray);
    color: var(--text-dark);
    line-height: 1.6;
}

/* Top Bar */
.top-bar {
    background-color: var(--card-white);
    padding: 1rem 2rem;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.top-bar h1 {
    font-size: 1.5rem;
    color: var(--primary-green);
}

.top-bar-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.search-input {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-gray);
    border-radius: 4px;
    font-size: 0.9rem;
    min-width: 200px;
}

/* Main Content Layout */
.main-content {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 1.5rem;
    padding: 1.5rem;
    max-width: 1600px;
    margin: 0 auto;
}

/* Entry Panel */
.entry-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.frequent-items,
.entry-form {
    background-color: var(--card-white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.frequent-items h2,
.entry-form h2 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.frequent-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.frequent-item-btn {
    padding: 0.75rem;
    background-color: var(--bg-gray);
    border: 1px solid var(--border-gray);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.3s ease;
    text-align: center;
}

.frequent-item-btn:hover {
    background-color: var(--primary-green);
    color: white;
    border-color: var(--primary-green);
    transform: translateY(-2px);
}

/* Entry Form */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.3rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-light);
}

.form-group input[type="text"],
.form-group input[type="number"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-gray);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.quantity-input {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.qty-btn {
    width: 44px;
    height: 44px;
    font-size: 1.5rem;
    background-color: var(--bg-gray);
    border: 1px solid var(--border-gray);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qty-btn:hover {
    background-color: var(--primary-green);
    color: white;
    border-color: var(--primary-green);
}

.quantity-input input {
    flex: 1;
    text-align: center;
    font-weight: 600;
}

/* Buttons */
.btn {
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    min-height: 44px;
}

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

.btn-primary:hover {
    background-color: var(--primary-green-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-large {
    width: 100%;
    font-size: 1rem;
    padding: 1rem;
    margin-top: 0.5rem;
}

.btn-secondary {
    background-color: var(--bg-gray);
    color: var(--text-dark);
}

.btn-secondary:hover {
    background-color: #e0e0e0;
}

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

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

.btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    min-height: auto;
}

/* Vendor Section */
.vendor-section {
    overflow-y: auto;
    max-height: calc(100vh - 150px);
}

.vendor-cards {
    display: grid;
    gap: 1rem;
}

.vendor-card {
    background-color: var(--card-white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all 0.3s ease;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.vendor-card-header {
    padding: 1rem 1.5rem;
    background-color: var(--bg-gray);
    font-weight: 600;
    font-size: 1.1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.item-count-badge {
    background-color: var(--primary-green);
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.85rem;
}

.vendor-items {
    padding: 1rem;
}

.vendor-item {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 1rem;
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-gray);
    align-items: center;
    transition: background-color 0.3s ease;
}

.vendor-item:last-child {
    border-bottom: none;
}

.vendor-item:hover {
    background-color: var(--bg-gray);
}

.item-name {
    font-weight: 500;
}

.item-qty {
    font-weight: 600;
    color: var(--text-light);
    min-width: 60px;
    text-align: right;
}

.delete-item-btn {
    background-color: transparent;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.25rem 0.5rem;
    transition: color 0.3s ease;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.delete-item-btn:hover {
    color: var(--danger-red);
}

.vendor-card-actions {
    padding: 1rem 1.5rem;
    background-color: var(--bg-gray);
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
}

/* Flash Animations */
@keyframes flashGreen {
    0%, 100% { background-color: var(--card-white); }
    50% { background-color: #c8e6c9; }
}

@keyframes flashRed {
    0%, 100% { background-color: var(--card-white); }
    50% { background-color: #ffcdd2; }
}

.flash-green {
    animation: flashGreen 0.6s ease;
}

.flash-red {
    animation: flashRed 0.6s ease;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 100px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    background-color: var(--text-dark);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 4px;
    box-shadow: var(--shadow-hover);
    animation: toastSlide 0.3s ease;
    max-width: 300px;
}

@keyframes toastSlide {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.success {
    background-color: var(--primary-green);
}

.toast.error {
    background-color: var(--danger-red);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background-color: var(--card-white);
    border-radius: 8px;
    box-shadow: var(--shadow-hover);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.confirm-dialog {
    max-width: 400px;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-gray);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.3rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-light);
    line-height: 1;
    padding: 0;
    width: 40px;
    height: 40px;
}

.modal-close:hover {
    color: var(--text-dark);
}

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

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-gray);
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
}

.session-item {
    padding: 1rem;
    border: 1px solid var(--border-gray);
    border-radius: 4px;
    margin-bottom: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.session-item:hover {
    background-color: var(--bg-gray);
    border-color: var(--primary-green);
}

.session-date {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.session-name {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Empty States */
.empty-message {
    color: var(--text-light);
    text-align: center;
    padding: 2rem;
    font-style: italic;
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
        padding: 1rem;
    }

    .top-bar {
        padding: 1rem;
    }

    .top-bar h1 {
        font-size: 1.2rem;
    }

    .top-bar-actions {
        width: 100%;
    }

    .search-input {
        flex: 1;
        min-width: 150px;
    }

    .vendor-section {
        max-height: none;
    }

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

    .vendor-item {
        grid-template-columns: 1fr auto auto;
        gap: 0.5rem;
    }

    .vendor-card-actions {
        flex-wrap: wrap;
    }

    .toast-container {
        right: 10px;
        left: 10px;
    }

    .toast {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .top-bar-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}

/* Tab Navigation */
.tab-navigation {
    display: flex;
    gap: 0.5rem;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background-color: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-light);
    transition: all 0.3s ease;
}

.tab-btn:hover {
    color: var(--text-dark);
    background-color: var(--bg-gray);
}

.tab-btn.active {
    color: var(--primary-green);
    border-bottom-color: var(--primary-green);
}

/* Tab Content */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Orders Tab Specific */
.orders-top-bar {
    background-color: var(--card-white);
    padding: 1rem 2rem;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Mapping Container */
.mapping-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 1rem;
}

/* Common Section Styles */
.supplier-management,
.csv-upload-section,
.item-mapping-section,
.completion-section {
    background-color: var(--card-white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.supplier-management h2,
.csv-upload-section h2,
.item-mapping-section h2,
.completion-section h2 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

/* Supplier Management */
.supplier-input-group {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.form-input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--border-gray);
    border-radius: 4px;
    font-size: 1rem;
}

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

.suppliers-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.supplier-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background-color: var(--bg-gray);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.supplier-item:hover {
    background-color: #e0e0e0;
}

.supplier-name {
    font-weight: 500;
    font-size: 1rem;
}

.delete-supplier-btn {
    background-color: transparent;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.5rem;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s ease;
}

.delete-supplier-btn:hover {
    color: var(--danger-red);
}

/* CSV Upload Section */
.instruction-text {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.upload-area {
    text-align: center;
    margin-bottom: 1.5rem;
}

.file-input {
    display: none;
}

.file-label {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 2rem;
    border: 2px dashed var(--border-gray);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: var(--bg-gray);
}

.file-label:hover {
    border-color: var(--primary-green);
    background-color: #e8f5e9;
}

.upload-icon {
    font-size: 3rem;
}

.file-name {
    margin-top: 1rem;
    color: var(--text-dark);
    font-weight: 500;
}

/* Item Mapping Section */
.mapping-header {
    margin-bottom: 2rem;
}

.progress-indicator {
    margin-top: 1rem;
}

#progressText {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--border-gray);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-green);
    transition: width 0.3s ease;
    width: 0%;
}

.item-card {
    background-color: var(--bg-gray);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 2rem;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.current-item-name {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-dark);
    word-break: break-word;
}

.supplier-buttons {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.supplier-assign-btn {
    padding: 1.25rem;
    background-color: var(--primary-green);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    min-height: 60px;
}

.supplier-assign-btn:hover {
    background-color: var(--primary-green-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.supplier-assign-btn:active {
    transform: translateY(0);
}

.mapping-actions {
    margin-bottom: 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.mapping-footer {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Completion Section */
.completion-card {
    text-align: center;
}

.completion-stats {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.completion-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Mobile Responsive for Mapping Tab */
@media (max-width: 768px) {
    .mapping-container {
        padding: 0.5rem;
    }

    .supplier-management,
    .csv-upload-section,
    .item-mapping-section,
    .completion-section {
        padding: 1.5rem;
    }

    .current-item-name {
        font-size: 1.5rem;
    }

    .supplier-input-group {
        flex-direction: column;
    }

    .tab-btn {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }

    .orders-top-bar {
        padding: 1rem;
        flex-direction: column;
        align-items: stretch;
    }

    .search-input {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .current-item-name {
        font-size: 1.3rem;
    }

    .supplier-assign-btn {
        font-size: 1rem;
        padding: 1rem;
    }

    .mapping-footer {
        flex-direction: column;
    }
}

/* Mappings History Section */
.mappings-history-section {
    background-color: var(--card-white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: 1.3rem;
    margin-bottom: 0;
}

.mappings-search {
    margin-bottom: 1.5rem;
}

.mappings-list {
    max-height: 500px;
    overflow-y: auto;
    margin-bottom: 1.5rem;
}

.mapping-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background-color: var(--bg-gray);
    border-radius: 4px;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
    gap: 1rem;
}

.mapping-item:hover {
    background-color: #e0e0e0;
}

.mapping-item-info {
    flex: 1;
    min-width: 0;
}

.mapping-item-name {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 0.25rem;
    word-break: break-word;
}

.mapping-item-supplier {
    color: var(--text-light);
    font-size: 0.9rem;
}

.mapping-item-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-shrink: 0;
}

.edit-mapping-btn {
    background-color: var(--primary-green);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    min-height: 44px;
    white-space: nowrap;
}

.edit-mapping-btn:hover {
    background-color: var(--primary-green-hover);
}

.delete-mapping-btn {
    background-color: transparent;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.5rem;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s ease;
}

.delete-mapping-btn:hover {
    color: var(--danger-red);
}

.mappings-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    padding-top: 1rem;
    border-top: 1px solid var(--border-gray);
}

/* Edit Mapping Modal Content */
.edit-mapping-content {
    padding: 1rem 0;
}

.edit-mapping-content .form-group {
    margin-bottom: 1rem;
}

.edit-mapping-content label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
}

.edit-mapping-content select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-gray);
    border-radius: 4px;
    font-size: 1rem;
    background-color: white;
}

.edit-mapping-content select:focus {
    outline: none;
    border-color: var(--primary-green);
}

/* Mobile Responsive for Mappings History */
@media (max-width: 768px) {
    .mappings-history-section {
        padding: 1.5rem;
    }

    .mapping-item {
        flex-direction: column;
        align-items: stretch;
    }

    .mapping-item-actions {
        justify-content: space-between;
        width: 100%;
    }

    .edit-mapping-btn {
        flex: 1;
    }

    .section-header {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }

    .mappings-actions {
        flex-direction: column;
    }

    .mappings-actions button {
        width: 100%;
    }
}