/* SPS Advanced Inventory Module Styles */

/* Light/Dark Theme Variables */
:root {
    /* Dark theme (default) */
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --card-bg: #2a2f3e;
    --header-bg: #1a1f2e;
    --input-bg: #1a1f2e;
    --text-primary: #ffffff;
    --text-secondary: #9ca3af;
    --border-color: #374151;
    --hover-bg: #374151;
    --accent-color: #3b82f6;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

/* Light Theme */
body[data-theme="light"] {
    --bg-primary: #f3f4f6;
    --bg-secondary: #ffffff;
    --card-bg: #ffffff;
    --header-bg: #ffffff;
    --input-bg: #f9fafb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --hover-bg: #f3f4f6;
    --accent-color: #3b82f6;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

body[data-theme="light"] .stat-card {
    border-color: var(--border-color);
    box-shadow: 0 1px 3px var(--shadow-color);
}

body[data-theme="light"] .sps-card {
    border-color: var(--border-color);
    box-shadow: 0 1px 3px var(--shadow-color);
}

body[data-theme="light"] .filter-bar {
    border-color: var(--border-color);
    box-shadow: 0 1px 3px var(--shadow-color);
}

body[data-theme="light"] .inventory-table th {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

body[data-theme="light"] .inventory-table td {
    border-color: var(--border-color);
}

body[data-theme="light"] .inventory-table tbody tr:hover {
    background: var(--hover-bg);
}

body[data-theme="light"] .modal-content {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

/* Theme Toggle Button */
.theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.theme-toggle:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
    border-color: var(--accent-color);
}

.theme-toggle .sun-icon,
.theme-toggle .moon-icon {
    width: 20px;
    height: 20px;
}

.theme-toggle .moon-icon {
    display: none;
}

body[data-theme="light"] .theme-toggle .sun-icon {
    display: none;
}

body[data-theme="light"] .theme-toggle .moon-icon {
    display: block;
}

/* Nav Right */
.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Inventory Main */
.inventory-main {
    background: var(--bg-primary);
    min-height: calc(100vh - 70px);
    padding: 2rem 0;
}

.inventory-main .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--card-bg, #2a2f3e);
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.blue { background: rgba(59, 130, 246, 0.2); color: #3b82f6; }
.stat-icon.yellow { background: rgba(234, 179, 8, 0.2); color: #eab308; }
.stat-icon.red { background: rgba(239, 68, 68, 0.2); color: #ef4444; }
.stat-icon.green { background: rgba(34, 197, 94, 0.2); color: #22c55e; }
.stat-icon.purple { background: rgba(168, 85, 247, 0.2); color: #a855f7; }
.stat-icon.orange { background: rgba(249, 115, 22, 0.2); color: #f97316; }

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary, #fff);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary, #9ca3af);
    margin-top: 0.25rem;
}

/* Filter Bar */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--card-bg, #2a2f3e);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.search-box {
    position: relative;
    flex: 1;
    min-width: 200px;
}

.search-box input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    background: var(--input-bg, #1a1f2e);
    border: 1px solid var(--border-color, #374151);
    border-radius: 8px;
    color: var(--text-primary, #fff);
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent-color, #3b82f6);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.search-box::before {
    content: "🔍";
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    opacity: 0.5;
}

.filter-group {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.filter-group label {
    font-size: 0.85rem;
    color: var(--text-secondary, #9ca3af);
    white-space: nowrap;
}

.filter-group select {
    padding: 0.75rem 1rem;
    background: var(--input-bg, #1a1f2e);
    border: 1px solid var(--border-color, #374151);
    border-radius: 8px;
    color: var(--text-primary, #fff);
    font-size: 0.95rem;
    cursor: pointer;
    min-width: 150px;
}

.filter-group select:focus {
    outline: none;
    border-color: var(--accent-color, #3b82f6);
}

.filter-actions {
    display: flex;
    gap: 0.5rem;
}

/* Action Bar */
.action-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.btn-scan {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-scan:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-add {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-add:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.4);
}

.btn-export {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--card-bg, #2a2f3e);
    color: var(--text-primary, #fff);
    border: 1px solid var(--border-color, #374151);
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}

.btn-export:hover {
    background: var(--hover-bg, #374151);
    border-color: var(--accent-color, #3b82f6);
}

.btn-shopping {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-shopping:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.4);
}

/* Inventory Table */
.inventory-table-container {
    background: var(--card-bg, #2a2f3e);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    overflow: hidden;
}

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

.inventory-table th {
    background: var(--header-bg, #1a1f2e);
    padding: 1rem;
    text-align: left;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary, #9ca3af);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color, #374151);
    cursor: pointer;
    user-select: none;
    transition: background 0.2s;
}

.inventory-table th:hover {
    background: var(--hover-bg, #374151);
}

.inventory-table th.sorted-asc::after {
    content: " ↑";
    color: var(--accent-color, #3b82f6);
}

.inventory-table th.sorted-desc::after {
    content: " ↓";
    color: var(--accent-color, #3b82f6);
}

.inventory-table td {
    padding: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.95rem;
    color: var(--text-primary, #fff);
    vertical-align: middle;
}

.inventory-table tbody tr {
    transition: background 0.2s;
}

.inventory-table tbody tr:hover {
    background: rgba(59, 130, 246, 0.1);
}

.inventory-table tbody tr.low-stock {
    background: rgba(239, 68, 68, 0.1);
}

.inventory-table tbody tr.expiring-soon {
    background: rgba(234, 179, 8, 0.1);
}

/* Item Name Cell */
.item-name-cell {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.item-thumbnail {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: cover;
    background: var(--input-bg, #1a1f2e);
}

.item-info {
    flex: 1;
}

.item-name {
    font-weight: 500;
    color: var(--text-primary, #fff);
}

.item-barcode {
    font-size: 0.75rem;
    color: var(--text-secondary, #9ca3af);
    font-family: monospace;
}

/* Stock Level Badges */
.stock-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.stock-badge.good {
    background: rgba(34, 197, 94, 0.2);
    color: #22c55e;
}

.stock-badge.low {
    background: rgba(234, 179, 8, 0.2);
    color: #eab308;
}

.stock-badge.critical {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.stock-badge.out {
    background: rgba(107, 114, 128, 0.2);
    color: #9ca3af;
}

/* Expiration Date */
.expiry-date {
    font-size: 0.9rem;
}

.expiry-date.expired {
    color: #ef4444;
    font-weight: 600;
}

.expiry-date.expiring-soon {
    color: #eab308;
    font-weight: 500;
}

.expiry-date.good {
    color: var(--text-secondary, #9ca3af);
}

/* Category Badge */
.category-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(168, 85, 247, 0.2);
    color: #a855f7;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Location Badge */
.location-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(59, 130, 246, 0.2);
    color: #3b82f6;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border-color, #374151);
    border-radius: 8px;
    color: var(--text-secondary, #9ca3af);
    cursor: pointer;
    transition: all 0.2s;
}

.btn-icon:hover {
    background: var(--hover-bg, #374151);
    color: var(--text-primary, #fff);
    border-color: var(--accent-color, #3b82f6);
}

.btn-icon.danger:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
    border-color: #ef4444;
}

.btn-icon.qr {
    background: rgba(139, 92, 246, 0.1);
    color: #8b5cf6;
    border-color: rgba(139, 92, 246, 0.3);
}

.btn-icon.qr:hover {
    background: rgba(139, 92, 246, 0.2);
    color: #a78bfa;
    border-color: #8b5cf6;
}

/* Barcode Scanner Modal */
.scanner-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.scanner-modal.active {
    display: flex;
}

.scanner-container {
    background: var(--card-bg, #2a2f3e);
    border-radius: 16px;
    width: 100%;
    max-width: 500px;
    overflow: hidden;
}

.scanner-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--header-bg, #1a1f2e);
    border-bottom: 1px solid var(--border-color, #374151);
}

.scanner-header h3 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-primary, #fff);
}

.scanner-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-secondary, #9ca3af);
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.2s, color 0.2s;
}

.scanner-close:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.scanner-viewport {
    position: relative;
    background: #000;
    aspect-ratio: 4/3;
}

.scanner-viewport video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scanner-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.scanner-target {
    width: 80%;
    max-width: 300px;
    aspect-ratio: 3/1;
    border: 3px solid rgba(59, 130, 246, 0.8);
    border-radius: 8px;
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.5);
}

.scanner-target::before,
.scanner-target::after {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    border: 3px solid #3b82f6;
}

.scanner-target::before {
    top: -3px;
    left: -3px;
    border-right: none;
    border-bottom: none;
    border-radius: 8px 0 0 0;
}

.scanner-target::after {
    bottom: -3px;
    right: -3px;
    border-left: none;
    border-top: none;
    border-radius: 0 0 8px 0;
}

.scanner-status {
    padding: 1rem 1.5rem;
    text-align: center;
    font-size: 0.95rem;
    color: var(--text-secondary, #9ca3af);
}

.scanner-status.success {
    color: #22c55e;
    background: rgba(34, 197, 94, 0.1);
}

.scanner-status.error {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.scanner-manual {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color, #374151);
}

.scanner-manual input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--input-bg, #1a1f2e);
    border: 1px solid var(--border-color, #374151);
    border-radius: 8px;
    color: var(--text-primary, #fff);
    font-size: 1rem;
    font-family: monospace;
    text-align: center;
    letter-spacing: 0.1em;
}

.scanner-manual input:focus {
    outline: none;
    border-color: var(--accent-color, #3b82f6);
}

/* Add/Edit Item Modal */
.item-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    align-items: flex-start;
    justify-content: center;
    padding: 2rem 1rem;
    overflow-y: auto;
}

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

.item-form-container {
    background: var(--card-bg, #2a2f3e);
    border-radius: 16px;
    width: 100%;
    max-width: 700px;
    margin: auto;
}

.item-form-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background: var(--header-bg, #1a1f2e);
    border-bottom: 1px solid var(--border-color, #374151);
    border-radius: 16px 16px 0 0;
}

.item-form-header h3 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--text-primary, #fff);
}

.item-form-body {
    padding: 1.5rem;
    max-height: calc(100vh - 200px);
    overflow-y: auto;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary, #9ca3af);
}

.form-group label .required {
    color: #ef4444;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem 1rem;
    background: var(--input-bg, #1a1f2e);
    border: 1px solid var(--border-color, #374151);
    border-radius: 8px;
    color: var(--text-primary, #fff);
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color, #3b82f6);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-hint {
    font-size: 0.8rem;
    color: var(--text-secondary, #9ca3af);
    margin-top: 0.25rem;
}

/* Existing Item Section */
.existing-item-section {
    background: var(--bg-secondary, #1e2433);
    border: 1px dashed var(--border-color, #374151);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.existing-item-section label {
    color: var(--primary-color, #3b82f6);
    font-weight: 600;
}

.existing-item-section select {
    width: 100%;
    padding: 0.75rem;
    border-radius: 6px;
    border: 1px solid var(--border-color, #374151);
    background: var(--card-bg, #252b3d);
    color: var(--text-primary, #fff);
    font-size: 0.95rem;
    margin-top: 0.5rem;
}

.existing-item-section select:focus {
    outline: none;
    border-color: var(--primary-color, #3b82f6);
}

.form-row {
    display: flex;
    gap: 1rem;
}

.form-row .form-group {
    flex: 1;
}

/* Nutrition Section */
.nutrition-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color, #374151);
}

.nutrition-section h4 {
    margin: 0 0 1rem 0;
    font-size: 1rem;
    color: var(--text-primary, #fff);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nutrition-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}

.nutrition-grid .form-group input {
    text-align: center;
}

/* Form Actions */
.item-form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: var(--header-bg, #1a1f2e);
    border-top: 1px solid var(--border-color, #374151);
    border-radius: 0 0 16px 16px;
}

.btn-cancel {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: 1px solid var(--border-color, #374151);
    border-radius: 8px;
    color: var(--text-secondary, #9ca3af);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-cancel:hover {
    background: var(--hover-bg, #374151);
    color: var(--text-primary, #fff);
}

.btn-save {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-save:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

/* Shopping List Modal */
.shopping-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.shopping-modal.active {
    display: flex;
}

.shopping-container {
    background: var(--card-bg, #2a2f3e);
    border-radius: 16px;
    width: 100%;
    max-width: 600px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.shopping-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background: var(--header-bg, #1a1f2e);
    border-bottom: 1px solid var(--border-color, #374151);
    border-radius: 16px 16px 0 0;
}

.shopping-list {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.shopping-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    border-radius: 8px;
    transition: background 0.2s;
}

.shopping-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.shopping-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: #3b82f6;
}

.shopping-item-info {
    flex: 1;
}

.shopping-item-name {
    font-weight: 500;
    color: var(--text-primary, #fff);
}

.shopping-item-qty {
    font-size: 0.85rem;
    color: var(--text-secondary, #9ca3af);
}

.shopping-item.checked .shopping-item-name {
    text-decoration: line-through;
    opacity: 0.5;
}

.shopping-actions {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color, #374151);
    display: flex;
    gap: 0.75rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary, #9ca3af);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    margin: 0 0 0.5rem 0;
    color: var(--text-primary, #fff);
}

.empty-state p {
    margin: 0;
    font-size: 0.95rem;
}

/* Loading State */
.loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(26, 31, 46, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border-color, #374151);
    border-top-color: var(--accent-color, #3b82f6);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .search-box {
        min-width: 100%;
    }

    .filter-group {
        width: 100%;
    }

    .filter-group select {
        flex: 1;
    }

    .action-bar {
        flex-direction: column;
    }

    .action-bar button {
        width: 100%;
        justify-content: center;
    }

    .inventory-table-container {
        overflow-x: auto;
    }

    .inventory-table {
        min-width: 800px;
    }

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

    .nutrition-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .item-form-actions {
        flex-direction: column;
    }

    .item-form-actions button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 1rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }
}

/* Modal Styles for Inventory Page */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    align-items: flex-start;
    justify-content: center;
    padding: 1rem;
    overflow-y: auto;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    cursor: pointer;
}

.modal-content {
    position: relative;
    background: var(--card-bg, #2a2f3e);
    border-radius: 16px;
    width: 100%;
    max-width: 500px;
    margin: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: modalSlideIn 0.3s ease;
    display: flex;
    flex-direction: column;
    max-height: calc(100vh - 2rem);
}

.modal-content.modal-lg {
    max-width: 700px;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background: var(--header-bg, #1a1f2e);
    border-bottom: 1px solid var(--border-color, #374151);
}

.modal-header h2 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--text-primary, #fff);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-secondary, #9ca3af);
    font-size: 1.75rem;
    cursor: pointer;
    border-radius: 8px;
    line-height: 1;
    transition: background 0.2s, color 0.2s;
}

.modal-close:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    overflow-x: hidden;
    flex: 1;
    min-height: 0;
}

.modal-body form {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

/* Form that wraps modal-body and modal-footer */
.modal-content form {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    max-height: 100%;
    overflow: hidden;
}

.modal-content form .modal-body {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.modal-content form .modal-footer {
    flex-shrink: 0;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: var(--header-bg, #1a1f2e);
    border-top: 1px solid var(--border-color, #374151);
    flex-shrink: 0;
    position: sticky;
    bottom: 0;
}

/* Form Styles */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
    width: 100%;
    box-sizing: border-box;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
    min-width: 0;
    width: 100%;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary, #9ca3af);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem 1rem;
    background: var(--input-bg, #1a1f2e);
    border: 1px solid var(--border-color, #374151);
    border-radius: 8px;
    color: var(--text-primary, #fff);
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color, #3b82f6);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.input-with-btn {
    display: flex;
    gap: 0.5rem;
}

.input-with-btn input {
    flex: 1;
}

.input-with-btn button {
    padding: 0.75rem 1rem;
    background: var(--accent-color, #3b82f6);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s;
}

.input-with-btn button:hover {
    background: #2563eb;
}

/* Scanner Specific Styles */
#scanner-container {
    background: #000;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 1rem;
}

#scanner-viewport {
    width: 100%;
    height: 300px;
    position: relative;
}

#scanner-viewport video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scanner-result {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.scanner-result label {
    font-size: 0.875rem;
    color: var(--text-secondary, #9ca3af);
}

.scanner-result input {
    padding: 0.75rem 1rem;
    background: var(--input-bg, #1a1f2e);
    border: 1px solid var(--border-color, #374151);
    border-radius: 8px;
    color: var(--text-primary, #fff);
    font-size: 1rem;
    font-family: monospace;
    text-align: center;
}

.scanner-hint {
    font-size: 0.875rem;
    color: var(--text-secondary, #9ca3af);
    text-align: center;
    margin: 0;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.page-header-left {
    flex: 1;
}

.page-title {
    margin: 0;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary, #fff);
}

.page-subtitle {
    margin: 0.25rem 0 0 0;
    color: var(--text-secondary, #9ca3af);
    font-size: 0.95rem;
}

.page-header-right {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: var(--card-bg, #2a2f3e);
    color: var(--text-primary, #fff);
    border: 1px solid var(--border-color, #374151);
}

.btn-secondary:hover {
    background: var(--hover-bg, #374151);
    border-color: var(--accent-color, #3b82f6);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary, #fff);
    border: 1px solid var(--border-color, #374151);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-color, #3b82f6);
}

/* SPS Card */
.sps-card {
    background: var(--card-bg, #2a2f3e);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

/* Table Container */
.table-container {
    overflow-x: auto;
}

/* Table Pagination */
.table-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-top: 1px solid var(--border-color, #374151);
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--text-secondary, #9ca3af);
}

.pagination-controls {
    display: flex;
    gap: 0.5rem;
}

.btn-page {
    padding: 0.5rem 1rem;
    background: var(--input-bg, #1a1f2e);
    border: 1px solid var(--border-color, #374151);
    border-radius: 6px;
    color: var(--text-primary, #fff);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-page:hover:not(:disabled) {
    background: var(--hover-bg, #374151);
    border-color: var(--accent-color, #3b82f6);
}

.btn-page:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* View Toggle */
.view-toggle {
    display: flex;
    background: var(--input-bg, #1a1f2e);
    border-radius: 8px;
    padding: 4px;
}

.view-btn {
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--text-secondary, #9ca3af);
    cursor: pointer;
    transition: all 0.2s;
}

.view-btn:hover {
    color: var(--text-primary, #fff);
}

.view-btn.active {
    background: var(--accent-color, #3b82f6);
    color: white;
}

/* Loading Row */
.loading-row td {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary, #9ca3af);
}

/* ============================================
   GROUPED ROWS STYLES
   ============================================ */

/* Group row - clickable header for grouped items */
.group-row {
    background: var(--bg-secondary, #1e2433);
    font-weight: 600;
    transition: background 0.2s;
}

.group-row:hover {
    background: var(--hover-bg, #2a3142);
}

.group-row.expanded {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(59, 130, 246, 0.05));
}

.group-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.expand-icon {
    font-size: 0.75rem;
    color: var(--text-secondary, #9ca3af);
    width: 1rem;
    text-align: center;
    transition: transform 0.2s;
}

.group-row.expanded .expand-icon {
    color: var(--primary-color, #3b82f6);
}

.group-count {
    font-size: 0.8rem;
    color: var(--text-secondary, #9ca3af);
    font-weight: 400;
    margin-left: 0.25rem;
}

.group-summary {
    font-size: 1.25rem;
    cursor: help;
}

/* Child row - individual items under a group */
.child-row {
    background: var(--card-bg, #252b3d);
    border-left: 3px solid var(--primary-color, #3b82f6);
}

.child-row:hover {
    background: var(--hover-bg, #2a3142);
}

.child-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.child-indent {
    width: 1.5rem;
    display: inline-block;
}

.child-indent::before {
    content: '└';
    color: var(--text-secondary, #6b7280);
    font-family: monospace;
}

/* Expiry count badge in group rows */
.expiry-count {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    margin-left: 0.25rem;
}

.expiry-count.warning {
    background: rgba(245, 158, 11, 0.2);
    color: #f59e0b;
}

/* Item row - single items (not grouped) */
.item-row {
    background: var(--card-bg, #2a2f3e);
}

.item-row:hover {
    background: var(--hover-bg, #353b4d);
}

/* Light theme adjustments for grouped rows */
body[data-theme="light"] .group-row {
    background: var(--bg-secondary, #f3f4f6);
}

body[data-theme="light"] .group-row:hover {
    background: var(--hover-bg, #e5e7eb);
}

body[data-theme="light"] .group-row.expanded {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(59, 130, 246, 0.02));
}

body[data-theme="light"] .child-row {
    background: var(--card-bg, #ffffff);
}

body[data-theme="light"] .child-row:hover {
    background: var(--hover-bg, #f9fafb);
}

body[data-theme="light"] .item-row {
    background: var(--card-bg, #ffffff);
}

body[data-theme="light"] .item-row:hover {
    background: var(--hover-bg, #f9fafb);
}

/* Print Styles */
@media print {
    .filter-bar,
    .action-bar,
    .action-buttons,
    .modal,
    .page-header-right,
    .table-pagination {
        display: none !important;
    }

    .inventory-table-container,
    .sps-card {
        border: 1px solid #ccc;
    }

    .inventory-table th,
    .inventory-table td {
        color: #000 !important;
        background: #fff !important;
        border: 1px solid #ccc !important;
    }
}