/* ============================================
   Uber Base Web Design System - Inspired Styles
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Uber Brand Colors */
    --uber-black: #000000;
    --uber-white: #FFFFFF;
    --uber-gray-50: #F6F6F6;
    --uber-gray-100: #EEEEEE;
    --uber-gray-200: #E2E2E2;
    --uber-gray-300: #CBCBCB;
    --uber-gray-400: #AFAFAF;
    --uber-gray-500: #6B6B6B;
    --uber-gray-600: #545454;
    --uber-gray-700: #333333;
    --uber-gray-800: #1A1A1A;

    /* Primary Colors */
    --primary-color: #000000;
    --primary-hover: #333333;
    --success-color: #05A357;
    --error-color: #CD0000;
    --warning-color: #F6B000;
    --info-color: #276EF1;

    /* Background Colors */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F6F6F6;
    --bg-tertiary: #EEEEEE;

    /* Text Colors */
    --text-primary: #000000;
    --text-secondary: #545454;
    --text-tertiary: #6B6B6B;
    --text-disabled: #AFAFAF;

    /* Border Colors */
    --border-color: #E2E2E2;
    --border-hover: #CBCBCB;
    --border-focus: #000000;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 8px 32px rgba(0, 0, 0, 0.16);

    /* Typography */
    --font-family: 'UberMove', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    --font-size-4xl: 40px;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Layout
   ============================================ */

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    width: 100%;
}

/* ============================================
   Navbar - Uber Style
   ============================================ */

.navbar {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--uber-black);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
}

.nav-links a:hover {
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
}

.btn-clear {
    background-color: var(--uber-black);
    color: var(--uber-white) !important;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.btn-clear:hover {
    background-color: var(--uber-gray-800);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   Main Content
   ============================================ */

main {
    flex: 1;
    padding: var(--spacing-2xl) 0;
}

/* ============================================
   Flash Messages - Uber Style
   ============================================ */

.flash-messages {
    margin-bottom: var(--spacing-lg);
}

.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    border-left: 4px solid;
}

.alert-success {
    background-color: #E8F5E9;
    color: #2E7D32;
    border-left-color: var(--success-color);
    border: 1px solid #10b981;
}

.alert-error {
    background-color: #FFEBEE;
    color: #C62828;
    border-left-color: var(--error-color);
}

.alert-warning {
    background-color: #FFF8E1;
    color: #F57C00;
    border-left-color: var(--warning-color);
}

/* ============================================
   Buttons - Uber Style
   ============================================ */

.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-family: var(--font-family);
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--uber-gray-800);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-secondary {
    background-color: var(--uber-gray-100);
    color: var(--uber-black);
}

.btn-secondary:hover {
    background-color: var(--uber-gray-200);
}

.btn-outline {
    background-color: transparent;
    color: var(--uber-black);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    background-color: var(--bg-secondary);
    border-color: var(--border-hover);
}

/* ============================================
   Export Buttons - Uber Premium Style
   ============================================ */

.export-actions {
    padding: 20px 32px;
    background: linear-gradient(180deg, var(--uber-gray-50) 0%, var(--bg-primary) 100%);
    border-bottom: 2px solid var(--uber-gray-200);
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn-export {
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 2px solid var(--uber-gray-300);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-export:hover {
    background-color: var(--uber-black);
    color: var(--uber-white);
    border-color: var(--uber-black);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-export:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.btn-export svg {
    width: 16px;
    height: 16px;
}

.btn-export-csv {
    border-color: var(--success-color);
    color: var(--success-color);
}

.btn-export-csv:hover {
    background-color: var(--success-color);
    border-color: var(--success-color);
    color: var(--uber-white);
}

.btn-export-json {
    border-color: var(--info-color);
    color: var(--info-color);
}

.btn-export-json:hover {
    background-color: var(--info-color);
    border-color: var(--info-color);
    color: var(--uber-white);
}

/* ============================================
   Upload Section
   ============================================ */
.upload-section {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.upload-card, .info-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.upload-card h2 {
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.file-upload-wrapper {
    margin-bottom: 2rem;
}

.file-upload-wrapper input[type="file"] {
    display: none;
}

.file-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
    text-align: center;
}

.file-upload-label:hover {
    border-color: var(--primary-color);
    background-color: #f0f9ff;
}

.file-upload-label svg {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.file-upload-label span {
    display: block;
    color: var(--text-primary);
    font-weight: 500;
}

.file-limit {
    font-size: 0.875rem;
    color: var(--text-secondary) !important;
    margin-top: 0.5rem;
}

.file-list {
    margin-bottom: 2rem;
}

.file-list h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.selected-files {
    list-style: none;
    max-height: 300px;
    overflow-y: auto;
}

.selected-files li {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    background-color: var(--bg-color);
    border-radius: 6px;
    margin-bottom: 0.5rem;
}

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

.file-size {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Info Card */
.info-card h3 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.info-card h3:first-child {
    margin-top: 0;
}

.info-card ol, .info-card ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.info-card li {
    margin-bottom: 0.5rem;
}

.info-card code {
    background-color: var(--bg-color);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
}

/* Process Section */
.process-section {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.process-card {
    background-color: var(--card-bg);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 500px;
    width: 100%;
}

.loader {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
    margin: 0 auto 2rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.process-info {
    color: var(--text-secondary);
    margin-top: 1rem;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin: 2rem 0;
}

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

/* Results Section */
.results-section {
    margin-bottom: 3rem;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.results-actions {
    display: flex;
    gap: 1rem;
}

.results-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.summary-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.summary-card h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.summary-card p {
    color: var(--text-secondary);
    font-weight: 500;
}

/* ============================================
   Vendor Cards - Uber Premium Style
   ============================================ */

.vendor-card {
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    margin-bottom: 32px;
    overflow: hidden;
    border: 1px solid var(--uber-gray-200);
    transition: all var(--transition-base);
}

.vendor-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
    transform: translateY(-2px);
    border-color: var(--uber-gray-300);
}

.vendor-card.vendor-error {
    border: 2px solid var(--error-color);
    background-color: #FFF5F5;
}

.vendor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 28px 32px;
    background: linear-gradient(180deg, var(--uber-gray-50) 0%, var(--bg-primary) 100%);
    border-bottom: 2px solid var(--uber-gray-200);
}

.vendor-header h3 {
    margin-bottom: 6px;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--uber-black);
}

.vendor-filename {
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.2px;
}

.vendor-status {
    display: flex;
    align-items: center;
    gap: 16px;
}

.badge {
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.badge-success {
    background-color: var(--success-color);
    color: var(--uber-white);
}

.badge-error {
    background-color: var(--error-color);
    color: var(--uber-white);
}

.item-count {
    color: var(--text-primary);
    font-weight: 700;
    font-size: 15px;
    background-color: var(--uber-gray-100);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    letter-spacing: -0.2px;
}

.error-message {
    padding: 24px 32px;
    background-color: #fee2e2;
    color: #991b1b;
    font-weight: 500;
}

.no-data {
    padding: 48px 32px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 15px;
}

/* ============================================
   Search Box - Uber Premium Style
   ============================================ */

.vendor-search {
    padding: 24px 32px;
    background-color: var(--uber-gray-50);
    border-bottom: 1px solid var(--uber-gray-200);
}

.search-wrapper {
    padding: 24px 32px;
    background-color: var(--uber-gray-50);
    border-bottom: 1px solid var(--uber-gray-200);
}

.search-box {
    display: flex;
    align-items: center;
    gap: 16px;
}

.search-input {
    flex: 1;
    padding: 14px 20px;
    border: 2px solid var(--uber-gray-200);
    border-radius: var(--radius-md);
    font-size: 15px;
    transition: all var(--transition-base);
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    font-weight: 500;
    color: var(--text-primary);
}

.search-input::placeholder {
    color: var(--text-tertiary);
    font-weight: 400;
}

.search-input:hover {
    border-color: var(--uber-gray-300);
}

.search-input:focus {
    outline: none;
    border-color: var(--uber-black);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
    background-color: var(--uber-white);
}

.search-results-count {
    font-weight: 700;
    font-size: 14px;
    min-width: 140px;
    text-align: right;
    color: var(--text-primary);
    letter-spacing: -0.2px;
}

/* ============================================
   Data Table - Uber Premium Style
   ============================================ */

.table-wrapper {
    overflow-x: auto;
    background-color: var(--bg-primary);
}

.table-container {
    background-color: var(--bg-primary);
    border-radius: 0;
    overflow: hidden;
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background-color: var(--bg-primary);
}

/* Fixed table for vendor view - always 25 rows */
.data-table.fixed-table tbody {
    display: table-row-group;
}

/* Table Header - Premium Uber Style */
.data-table thead {
    background-color: var(--uber-black);
    position: sticky;
    top: 0;
    z-index: 10;
}

.data-table thead tr {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

.data-table th {
    padding: 18px 24px;
    text-align: left;
    font-weight: 700;
    color: var(--uber-white);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    border: none;
    white-space: nowrap;
    background-color: var(--uber-black);
}

.data-table th:first-child {
    padding-left: 32px;
}

.data-table th:last-child {
    padding-right: 32px;
}

/* Table Body - Clean & Spacious */
.data-table tbody {
    background-color: var(--bg-primary);
}

.data-table td {
    padding: 20px 24px;
    border-bottom: 1px solid var(--uber-gray-100);
    font-size: 15px;
    color: var(--text-primary);
    line-height: 1.5;
    vertical-align: middle;
    transition: background-color var(--transition-fast);
}

.data-table td:first-child {
    padding-left: 32px;
    font-weight: 600;
    color: var(--uber-black);
}

.data-table td:last-child {
    padding-right: 32px;
}

/* Row Hover Effect - Subtle & Professional */
.data-table tbody tr {
    transition: all var(--transition-fast);
    cursor: default;
}

.data-table tbody tr:hover:not(.empty-row) {
    background-color: var(--uber-gray-50);
    box-shadow: inset 4px 0 0 var(--uber-black);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* Empty rows for fixed table */
.data-table tbody tr.empty-row {
    background-color: transparent;
    pointer-events: none;
    cursor: default;
}

.data-table tbody tr.empty-row:hover {
    background-color: transparent;
    box-shadow: none;
}

.data-table tbody tr.empty-row td {
    color: transparent;
    user-select: none;
    border-bottom: 1px solid var(--uber-gray-100);
    padding: 20px 24px;
}

/* Product ID Column - Monospace & Bold */
.data-table td:first-child {
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Courier New', monospace;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: -0.2px;
    color: var(--uber-black);
}

/* Description Column - Readable */
.data-table td:nth-child(2) {
    color: var(--text-secondary);
    font-weight: 400;
    max-width: 400px;
}

/* Cost Column - Prominent & Green */
.data-table td:last-child {
    font-weight: 700;
    font-size: 16px;
    color: var(--success-color);
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Courier New', monospace;
    letter-spacing: -0.3px;
}

/* Alternating Row Colors (Optional - Subtle) */
.data-table tbody tr:nth-child(even):not(.empty-row) {
    background-color: var(--uber-gray-50);
}

.data-table tbody tr:nth-child(even):not(.empty-row):hover {
    background-color: var(--uber-gray-100);
}

/* Pagination Controls - Uber Premium Style */
.pagination {
    margin-top: 0;
    background-color: var(--uber-gray-50);
    border-top: 2px solid var(--uber-gray-200);
}

.pagination-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    padding: 24px 32px;
    background-color: var(--uber-gray-50);
}

.pagination-btn,
.btn-pagination {
    padding: 12px 28px;
    background-color: var(--uber-black);
    color: var(--uber-white);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 13px;
    cursor: pointer;
    transition: all var(--transition-base);
    min-width: 110px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.pagination-btn:hover:not(:disabled),
.btn-pagination:hover:not(:disabled) {
    background-color: var(--uber-gray-800);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.pagination-btn:active:not(:disabled),
.btn-pagination:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.pagination-btn:disabled,
.btn-pagination:disabled {
    background-color: var(--uber-gray-300);
    color: var(--uber-gray-500);
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.pagination-info {
    font-weight: 700;
    font-size: 15px;
    color: var(--uber-black);
    padding: 0 16px;
    min-width: 140px;
    text-align: center;
    letter-spacing: -0.3px;
}

.page-info {
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.2px;
}

.page-info .current-page {
    color: var(--primary-color);
    font-weight: 700;
}

.showing-count {
    color: var(--text-secondary);
}

/* Footer */
footer {
    background-color: var(--card-bg);
    padding: 2rem 0;
    margin-top: auto;
    text-align: center;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
}

/* View Toggle Styles */
.view-toggle {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    padding: 4px;
    background: var(--uber-gray-50);
    border-radius: 8px;
    width: fit-content;
}

.toggle-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: transparent;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.toggle-btn:hover {
    background: var(--uber-white);
    color: var(--text-primary);
}

.toggle-btn.active {
    background: var(--uber-black);
    color: var(--uber-white);
}

/* Processing Status */
.processing-status {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: var(--uber-gray-50);
    border-radius: 8px;
    margin-bottom: 24px;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--uber-gray-200);
    border-top: 3px solid var(--uber-black);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* All Products View */
.all-products-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.search-export-container {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.vendor-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--uber-gray-100);
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.view-container {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .upload-section {
        grid-template-columns: 1fr;
    }

    .results-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .results-summary {
        grid-template-columns: 1fr;
    }

    .vendor-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .view-toggle {
        width: 100%;
    }

    .toggle-btn {
        flex: 1;
        justify-content: center;
    }

    .search-export-container {
        width: 100%;
        flex-direction: column;
    }

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