:root{
    color-scheme: dark;
    /* Spaziature e proporzioni */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 20px;
    --radius-main: 12px;
    --radius-sm: 8px;

    --bg-primary: #111;
    --bg-secondary: #1b1b1b;
    --bg-tertiary: #222;
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --border-color: #444;
    --badge-bg: #444;
    --btn-primary: #388e3c;
    --btn-primary-hover: #2e7d32;
    --btn-secondary: #1976d2;
    --btn-secondary-hover: #1565c0;
    --btn-accent: #ff9800;
    --btn-text: #fff;
    --btn-text-on-accent: #111;
    --btn-accent-hover: #f57c00;
    --btn-danger: #d32f2f;
    --btn-danger-hover: #b71c1c;
    --btn-cancel: #666;
    --btn-cancel-hover: #555;
    --scanned-barcode-color: #ff9800;

    --cat-stendini: #ff8a65;
    --cat-shampoo: #81c784;
    --cat-piatti-det: #4fc3f7;
    --cat-assorbenti: #f06292;
    --cat-casa: #ffd54f;
    --cat-lavatrice: #ba68c8;
    --cat-carta: #4db6ac;
    --cat-igiene: #e57373;
    --cat-bicchieri: #7986cb;
    --cat-perla: #b2ebf2;
}

body.light-theme {
    --bg-primary: #f5f5f5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e0e0e0;
    --text-primary: #222;
    --text-secondary: #666;
    --border-color: #c0c0c0;
    --badge-bg: #e0e0e0;
    --btn-text: #fff;
    --btn-text-on-accent: #111;
    --btn-primary: #388e3c;
    --btn-primary-hover: #2e7d32;
    --btn-secondary: #1565c0;
    --btn-secondary-hover: #0d47a1;
    --btn-accent: #f57c00;
    --btn-accent-hover: #e65100;
    --btn-danger: #d32f2f;
    --btn-danger-hover: #c62828;
    --btn-cancel: #757575;
    --btn-cancel-hover: #616161;
    --scanned-barcode-color: #f57c00;

    --cat-stendini: #bf360c;
    --cat-shampoo: #1b5e20;
    --cat-piatti-det: #01579b;
    --cat-assorbenti: #880e4f;
    --cat-casa: #e65100;
    --cat-lavatrice: #4a148c;
    --cat-carta: #004d40;
    --cat-igiene: #b71c1c;
    --cat-bicchieri: #1a237e;
    --cat-perla: #006064;
}

:root {
    --modal-header-color: #66bb6a;
    --highlight-color: #66bb6a;
}

body{
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family:Arial, sans-serif;
    margin:0;
    padding: 0 var(--spacing-md) var(--spacing-lg);
    min-height:100vh;
    transition: background-color 0.15s, color 0.15s;
}

.page-header{
    background: var(--bg-primary);
    border-bottom:1px solid var(--border-color);
    padding: var(--spacing-md);
    display:flex;
    flex-direction:column;
    gap:10px;
    transition: background-color 0.15s, border-color 0.15s;
}

.page-header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.header-buttons {
    flex-shrink: 0;
    display: flex;
    gap: 5px;
}

.search-container{
    display: flex;
    gap: var(--spacing-sm);
    justify-content:space-between;
    flex-wrap:wrap;
    flex-shrink: 0;
    width:100%;
    max-width:1200px;
    margin:0 auto;
}

.search-wrapper{
    display:flex;
    gap:5px;
    align-items:center;
    flex:1;
    min-width:260px;
}

.action-buttons {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    flex-shrink: 0;
}

#search{
    width:100%;
    max-width:500px;
    padding: var(--spacing-md) 16px;
    font-size:1.1rem;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius:10px;
    border:none;
    box-sizing:border-box;
    transition: background-color 0.15s, color 0.15s;
}

#deviceNameInput {
    flex: 1;
    max-width: 150px;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    margin-left: var(--spacing-sm);
}

.lock-badge {
    font-size: 0.7rem;
    padding: 2px 10px;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    margin-left: var(--spacing-sm);
    vertical-align: middle;
}

.lock-badge.unlocked {
    background: rgba(76, 175, 80, 0.15);
    color: var(--btn-primary);
    border: 1px solid var(--btn-primary);
}

.lock-badge.own-lock {
    background: rgba(33, 150, 243, 0.15);
    color: var(--btn-secondary);
    border: 1px solid var(--btn-secondary);
    cursor: pointer;
}

.lock-badge.others-lock {
    background: rgba(244, 67, 54, 0.15);
    color: var(--btn-danger);
    border: 1px solid var(--btn-danger);
}

input,button,select,textarea{
    padding: var(--spacing-md);
    border:none;
    border-radius: var(--radius-sm);
    font-size:1rem;
    font-family:inherit;
}

.highlight{
    background: var(--highlight-color);
    color: white;
    font-weight: bold;
    padding: 2px 4px;
    border-radius: 3px;
}

button{
    background: var(--btn-primary);
    color: var(--btn-text);
    cursor:pointer;
    transition: transform 0.1s, background-color 0.2s, box-shadow 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
}

button:hover{
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}


button:active{
    transform: translateY(0);
}

button.camera-btn,
.camera-btn,
.action-button,
.camera-switch button{
    background: var(--btn-secondary);
}

button.camera-btn.off {
    background: var(--btn-cancel);
}

button.quick-btn,
.accent-btn,
button#toggleSortBtn.active-sort {
    background: var(--btn-accent);
    color: var(--btn-text-on-accent) !important;
}

#toggleVibrationBtn.off {
    background: var(--btn-cancel);
}

.shopping-list-badge {
    background: var(--btn-accent);
}

button.small-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
}

button.change-btn {
    width: 100%;
    height: 48px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    border: none;
    color: white;
    transition: transform 0.12s ease, background 0.12s ease, box-shadow 0.12s ease;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.18);
}

button.change-btn:hover {
    transform: translateY(-1px);
}

button.edit-btn {
    width: 100%;
    background: var(--bg-tertiary);
    color: var(--btn-secondary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-sm) var(--spacing-xs);
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.1s ease, color 0.1s ease, border-color 0.1s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

button.edit-btn:hover {
    background: rgba(33, 150, 243, 0.08);
    border-color: rgba(33, 150, 243, 0.4);
}

button.delete{
    background: var(--btn-danger);
}

button.minus{
    background: var(--btn-danger);
}

button.cancel{
    background: var(--btn-cancel);
}

.search-hide {
    opacity: 0 !important;
    transform: scale(0.5) !important;
    width: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    pointer-events: none !important;
    visibility: hidden !important;
    overflow: hidden !important;
    white-space: nowrap !important;
}

button.save{
    background: var(--btn-primary);
}

.invisible {
    display: none !important;
}

select,textarea{
    width:100%;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transition: background-color 0.15s, color 0.15s;
}

#clearSearchBtn{
    display:none;
    width:auto;
    padding:12px 16px;
    background: var(--btn-danger);
}

.card{
    background: var(--bg-secondary);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-main);
    padding: var(--spacing-md);
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap: var(--spacing-md);
    position: relative; /* Per posizionare i suggerimenti */
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.5), 0 2px 4px rgba(0, 0, 0, 0.3);
    transition: background-color 0.15s;
}

.card-main-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: stretch;
}

.card-header-section {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: flex-start;
    width: 100%;
}

.card-info-details {
    flex: 1;
    min-width: 0;
}

.badges-row {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-sm);
}

.actions-section {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--spacing-sm);
}

.management-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    min-width: 140px;
    max-width: 220px;
    gap: var(--spacing-xs);
}

.management-grid .span-2 {
    grid-column: span 2;
}

.card-quantity-controls {
    width: 100%;
    margin-top: var(--spacing-sm);
    flex-shrink: 0;
}

body.light-theme .card{
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.out-of-stock {
    background-color: rgba(244, 67, 54, 0.1);
}

body.light-theme .out-of-stock {
    background-color: rgba(211, 47, 47, 0.05);
}

.card.out-of-stock strong {
    color: var(--btn-danger);
    font-weight: 900;
}

.badge {
    padding: 2px 10px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.8rem;
    display: inline-block;
    flex-shrink: 0;
}

.out-of-stock-badge {
    background: var(--btn-danger);
    color: white;
}

.shopping-list-badge {
    color: var(--btn-text-on-accent);
}

.category-badge {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.7rem;
}

.info{
    flex:none;
}

.product-img-container {
    width: 100%;
    height: 150px;
    background: white;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-img-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.controls{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.controls button{
    width:100%;
    height: 44px;
    font-weight:bold;
    flex-shrink: 0;
    font-size:1rem;
}

button.change-btn {
    width: 100%;
}

.barcode-badge{
    font-family:'Courier New', Courier, monospace;
    background: #1a237e;
    color: #ffffff;
    padding: 2px 10px;
    border-radius: var(--radius-sm);
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
    transition: background-color 0.15s, color 0.15s;
}

body.light-theme .barcode-badge {
    background: #e8eaf6;
    color: #1a237e;
    border: 1px solid #c5cae9;
}

.barcode-suffix {
    font-weight: 900;
    font-size: 1.3em;
    color: #00ff00;
    text-shadow: 0 0 5px rgba(0, 255, 0, 0.3);
}

body.light-theme .barcode-suffix {
    color: #ff0000;
}

.search-container > div:last-child{
    display:flex;
    gap: var(--spacing-xs);
    flex-wrap:wrap;
    justify-content:flex-end;
    flex-shrink: 0;
}

.filter-container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    display:flex;
    flex-shrink: 0;
    gap: var(--spacing-sm);
    flex-wrap:wrap;
}

#productsContainer{
    max-width:1200px;
    margin: var(--spacing-sm) auto 0;
    flex-grow: 1;
}

.item-counter{
    max-width:1200px;
    margin: var(--spacing-lg) auto;
    font-size:0.95rem;
    color: var(--text-secondary);
    text-align:right;
    transition: color 0.15s;
}

.scanner-container{
    position: fixed;
    display:none;
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:100%;
    background:rgba(0,0,0,0.8);
    z-index: 3000;
    justify-content:center;
    align-items:center;
    flex-direction:column;
    padding:20px;
    box-sizing:border-box;
}

body.light-theme .scanner-container{
    background:rgba(255,255,255,0.9);
}

.scanner-content{
    background: var(--bg-secondary);
    border-radius: var(--radius-main);
    padding: var(--spacing-lg);
    flex-shrink: 0;
    width:100%;
    max-width:400px;
    transition: background-color 0.15s;
    box-sizing:border-box;
}

.camera-switch{
    display:flex;
    justify-content:center;
    margin-bottom: var(--spacing-sm);
    flex-shrink: 0;
    flex-wrap:wrap;
    gap: var(--spacing-sm);
}

.camera-switch button{
    border:none;
    border-radius:8px;
    padding:8px 16px;
    font-size:0.9rem;
}

#qr-reader{
    width:100%;
    margin-top: var(--spacing-sm);
    border-radius: var(--radius-sm);
    overflow:hidden;
}

#qr-reader canvas,
#qr-reader video{
    border-radius: var(--radius-sm) !important;
    max-width: 100% !important;
    height: auto !important;
}

.modal{
    position: fixed;
    display:none;
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:100%;
    background:rgba(0,0,0,0.8);
    z-index: 1000;
    justify-content:center;
    align-items:center;
    padding:16px;
    box-sizing:border-box;
}

body.light-theme .modal{
    background:rgba(255,255,255,0.9);
}

.modal-content,
.quantity-modal-content{
    background: var(--bg-secondary);
    border-radius: var(--radius-main);
    padding: var(--spacing-lg);
    width:100%;
    max-width: 450px;
    min-height: 200px;
    color: var(--text-primary);
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: background-color 0.15s, color 0.15s;
    box-sizing:border-box;
}

.modal[style*="display: flex"] .modal-content,
.modal[style*="display: flex"] .quantity-modal-content {
    animation: modalPop 0.15s ease-out forwards;
}

@keyframes modalPop {
    from { opacity: 0; transform: scale(0.96) translateY(5px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-content h3 {
    margin-top: 0;
    margin-bottom: 5px;
    color: var(--modal-header-color);
    flex-shrink: 0;
}

.modal-content > p {
    margin-bottom: var(--spacing-md);
    flex-shrink: 0;
}

.modal-content input,
.modal-content textarea{
    width:100%;
    margin-bottom: var(--spacing-sm);
    box-sizing:border-box;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    transition: background-color 0.3s, color 0.3s;
}

.modal-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    flex-shrink: 0;
    margin-bottom: var(--spacing-sm);
}

.modal-form-row div {
    display: flex;
    flex-direction: column;
}

.modal-buttons,
.quantity-actions{
    display:flex;
    gap: var(--spacing-sm);
    justify-content:flex-end;
    margin-top: var(--spacing-md);
    flex-shrink: 0;
    flex-wrap:wrap;
    flex-shrink: 0;
}

.quantity-modal{
    display:none;
    position:fixed;
    top:0;
    left:0;
    width:100%;
    position: fixed;
    height:100%;
    background:rgba(0,0,0,0.8);
    z-index:1000;
    justify-content:center;
    align-items:center;
    box-sizing:border-box;
    padding:16px;
}

.quantity-modal-content{
    text-align:center;
}

.quantity-info{
    flex-shrink: 0;
    margin: var(--spacing-md) 0;
}

.quantity-controls{
    display:flex;
    flex-direction:column;
    gap: var(--spacing-md);
    flex-shrink: 0;
    align-items:center;
}

.quantity-buttons{
    display:grid;
    grid-template-columns:repeat(4, 1fr);
    gap: var(--spacing-sm);
    flex-shrink: 0;
    width:100%;
}

.quantity-buttons button{
    height:50px;
    border:none;
    border-radius: var(--radius-sm);
    font-size:1.2rem;
    font-weight:bold;
}

.quantity-input{
    flex-shrink: 0;
    display:flex;
    align-items:center;
    gap: var(--spacing-sm);
    justify-content:center;
}

.quantity-input input{
    width:80px;
    text-align:center;
    font-size:1.2rem;
    font-weight:bold;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    border:2px solid #666;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transition: background-color 0.15s, color 0.15s;
}

@media (max-width:780px){
    .management-grid {
        align-items: center;
    }

    
    .search-container{
        flex-direction:column;
        align-items:stretch;
    }

    .filter-container{
        justify-content:center;
    }

    .search-wrapper{
        width:100%;
    }
    
    .camera-btn,
    .quick-btn,
    .action-button,
    .lowStockBtn {
        width:100%;
    }
}

.notification-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
    width: 90%;
    max-width: 400px;
}

.notification {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-main);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
    border-left: 5px solid var(--btn-primary);
    pointer-events: auto;
    animation: slideDown 0.3s ease-out forwards;
    font-weight: 500;
    text-align: center;
}

.notification.error {
    border-left-color: var(--btn-danger);
}

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

@media (max-width:520px){
    .controls button{
        font-size: 0.85rem;
    }

    #recentsModal {
        padding: 0;
    }

    #recentsModal .modal-content {
        max-height: 100vh;
        height: 100%;
        border-radius: 0;
    }
    
    button.change-btn {
        height: 36px;
    }

    .modal-content {
        padding: 12px;
    }

    .modal-content h3 {
        margin-bottom: var(--spacing-sm);
    }

    .modal-content input,
    .modal-content textarea {
        margin-bottom: var(--spacing-xs);
        padding: var(--spacing-sm);
    }

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

.recent-item {
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    margin-bottom: var(--spacing-sm);
    transition: transform 0.1s, background 0.2s;
    position: relative;
    border-left: 4px solid var(--btn-accent);
}

.recent-item:hover {
    background: var(--border-color);
    transform: translateX(4px);
}

.recent-item strong {
    display: block;
    font-size: 1rem;
    flex-shrink: 0;
}
.recent-item small {
    color: var(--text-secondary);
}

#refillItemsContainer {
    flex-grow: 1;
    flex: 1 1 0%;
    overflow-y: auto;
    min-height: 0;
    padding-right: 5px;
}

.low-stock-items-container {
    flex: 1 1 0%;
    overflow-y: auto;
    min-height: 0;
    margin-bottom: var(--spacing-sm);
    scrollbar-width: thin;
    scrollbar-color: var(--btn-accent) var(--bg-tertiary);
}

.low-stock-items-container::-webkit-scrollbar {
    width: 8px;
}

.low-stock-items-container::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 10px;
}

.low-stock-items-container::-webkit-scrollbar-thumb {
    background-color: var(--btn-accent);
    border-radius: 10px;
}

.low-stock-item {
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    margin-bottom: var(--spacing-sm);
    transition: transform 0.1s, background 0.2s;
    position: relative;
    border-left: 5px solid var(--btn-danger);
}

.low-stock-item.low-stock-critical {
    border-left: 8px solid var(--btn-accent);
    background-color: rgba(255, 152, 0, 0.15);
    box-shadow: 0 0 10px rgba(255, 152, 0, 0.3);
}

body.light-theme .low-stock-item.low-stock-critical {
    background-color: rgba(255, 152, 0, 0.1);
    color: var(--text-primary);
}

.low-stock-item.low-stock-critical strong {
    color: var(--btn-accent-hover);
    font-weight: 800;
}

.low-stock-item:hover {
    background: var(--border-color);
    transform: translateX(4px);
}

.low-stock-item strong {
    display: block;
    font-size: 1rem;
    flex-shrink: 0;
}

.low-stock-item small {
    color: var(--text-secondary);
}

.refill-category-group {
    margin-bottom: var(--spacing-md);
    border: 1px solid;
    border-radius: var(--radius-sm);
    overflow: hidden;
}


.refill-category-header {
    background: var(--bg-tertiary);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bold;
    font-size: 0.95rem;
    border-bottom: 1px solid currentColor;
    flex-shrink: 0;
    user-select: none;
}

.refill-category-header::after {
    content: '▼';
    font-size: 0.7rem;
    transition: transform 0.2s;
}

.refill-category-group.collapsed .refill-category-header::after {
    transform: rotate(-90deg);
}

.refill-category-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: var(--spacing-sm);
    flex-shrink: 0;
    transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.refill-category-group.collapsed .refill-category-content {
    max-height: 0 !important;
    padding-top: 0;
    padding-bottom: 0;
    overflow: hidden;
}

.refill-item {
    padding: 15px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    gap: var(--spacing-md);
    border-left: 5px solid var(--btn-primary);
}

.refill-item.empty-stock {
    border-left-color: var(--btn-danger);
}

.refill-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 10px;
    flex-shrink: 0;
}

.refill-item-details {
    flex: 1;
}

.refill-item-actions {
    display: flex;
    gap: var(--spacing-xs);
    flex-shrink: 0;
}

.refill-stock-update-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: bold;
    text-transform: uppercase;
    flex-shrink: 0;
}

.scan-flash-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0;
}

.flash-success {
    animation: flash-animation-green 0.4s ease-out;
}

.flash-error {
    animation: flash-animation-red 0.4s ease-out;
}

@keyframes flash-animation-green {
    0% { background-color: rgba(76, 175, 80, 0.4); opacity: 1; }
    100% { background-color: rgba(76, 175, 80, 0); opacity: 0; }
}

@keyframes flash-animation-red {
    0% { background-color: rgba(244, 67, 54, 0.4); opacity: 1; }
    100% { background-color: rgba(244, 67, 54, 0); opacity: 0; }
}

button#toggleSortBtn.active-sort {
    background: var(--btn-accent);
    color: var(--btn-text-on-accent);
}

button#toggleSortBtn.active-sort:hover {
    background: var(--btn-accent-hover);
}

.low-stock-item.empty-stock {
    background-color: rgba(244, 67, 54, 0.15);
}

body.light-theme .low-stock-item.empty-stock {
    background-color: rgba(211, 47, 47, 0.1);
}

.accent-btn {
    background: var(--btn-accent) !important;
    color: var(--btn-text-on-accent) !important;
}

.scanned-barcode-display {
    font-family: 'Courier New', Courier, monospace;
    color: var(--scanned-barcode-color);
    font-weight: bold;
}

#secretRestoreBtn {
    display: none;
    position: fixed;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 5000;
    background: var(--btn-danger);
    color: var(--btn-text);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    box-shadow: 0 0 15px rgba(244, 67, 54, 0.5);
    border: 1px solid white;
}

.backup-list-item {
    padding: 10px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
}

.quantity-controls .change-btn {
    display: flex;
    align-items: center;
    justify-content: center;
}

#refillQuantityModal .modal-content {
    max-width: 400px;
    padding: 25px;
}

#refillQuantityModal .refill-product-info {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    flex-shrink: 0;
    border-bottom: 1px solid var(--border-color);
}

.refill-product-stock {
    margin-top: var(--spacing-sm); 
    color: var(--btn-accent); 
    font-weight: bold; 
    font-size: 0.9rem;
}

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

.suggestion-item:hover {
    background: var(--bg-tertiary);
}

#refillQuantityModal .quantity-controls {
    width: 100%;
    align-items: stretch;
    flex-shrink: 0;
}

#refillQuantityModal .quantity-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-shrink: 0;
    width: 100%;
}

#refillQuantityModal .quantity-main-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-shrink: 0;
    margin: var(--spacing-md) 0;
}

#refillQuantityModal .qty-main-input {
    width: 90px;
    height: 60px;
    font-size: 1.8rem !important;
    font-weight: bold;
    text-align: center;
    border: 2px solid var(--btn-primary);
    border-radius: 12px;
    background: var(--bg-tertiary);
    margin: 0 !important;
}

#refillQuantityModal .section-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    flex-shrink: 0;
    margin-bottom: var(--spacing-sm);
    font-weight: bold;
    display: block;
    text-align: center;
}

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

.suggestion-item:hover {
    background: var(--bg-tertiary);
}

.suggestions-container {
    position: absolute;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    max-height: 150px;
    overflow-y: auto;
    z-index: 1001;
    flex-shrink: 0;
    width: 100%;
    left: 0;
    top: calc(100% + 5px);
    display: none;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.suggestions-container.visible {
    display: block;
}

.suggestion-item {
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    flex-shrink: 0;
    border-bottom: 1px solid var(--border-color);
}

#scrollToTopBtn {
    position: fixed;
    bottom: 25px;
    left: 25px;
    width: 50px;
    height: 50px;
    z-index: 1000;
    border: none;
    background-color: var(--btn-primary);
    color: var(--btn-text);
    border-radius: 50%;
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

#scrollToTopBtn.show {
    opacity: 1;
    visibility: visible;
}

#scrollToTopBtn:hover {
    background-color: var(--btn-primary-hover);
    transform: scale(1.1) translateY(-5px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.5);
}

button.lowStockBtn {
    background: linear-gradient(135deg, #ff0000, #ff8c00);
    color: white;
    font-weight: bold;
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 15px rgba(255, 0, 0, 0.5);
    transition: all 0.3s ease;
}

button.lowStockBtn:hover {
    background: linear-gradient(135deg, #ff8c00, #ff0000);
    box-shadow: 0 0 25px rgba(255, 0, 0, 0.8);
    transform: translateY(-2px);
    animation: none;
}

@keyframes warningPulse {
    from { box-shadow: 0 0 5px rgba(255, 0, 0, 0.4); transform: scale(1); }
    to { box-shadow: 0 0 20px rgba(255, 0, 0, 0.8); transform: scale(1); }
}

@keyframes highlight-fade {
    0% { background-color: rgba(255, 215, 0, 0.6); transform: scale(1); box-shadow: 0 0 15px rgba(255, 215, 0, 0.4); }
    100% { transform: scale(1); background-color: transparent; }
}

.highlight-modified {
    animation: highlight-fade 2s ease-out;
    z-index: 10;
}