:root {
    --border-radius: 5px;
    --border-radius-lg: 8px;
    --transition-speed: 0.15s ease-in-out;
}

[data-bs-theme="dark"] {
    --bs-body-bg: #1a1a1a;
    --bs-body-color: #e0e0e0;
    --bs-emphasis-color: #f0f0f0;
    --bs-secondary-bg: #2c2c2c;
    --bs-tertiary-bg: #3c3c3c;
    --bs-border-color: #444;
    --bs-link-color: #6ea8fe;
    --bs-link-hover-color: #9ec5fe;
    --navbar-bg: #2c2c2c;
    --card-bg: #2c2c2c;
    --metadata-bg: rgba(255, 255, 255, 0.05);
    --stripe-bg: rgba(255, 255, 255, 0.02);
    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --text-muted: #9a9a9a;
    --dropdown-bg: var(--bs-secondary-bg);
    --dropdown-hover-bg: var(--metadata-bg);
}

[data-bs-theme="light"] {
    --bs-body-bg: #e8e8e8;
    --bs-body-color: #1e2832;
    --bs-emphasis-color: #0d1117;
    --bs-secondary-bg: #dcdcdc;
    --bs-tertiary-bg: #d0d0d0;
    --bs-border-color: #b8b8b8;
    --bs-link-color: #0056d2;
    --bs-link-hover-color: #0045a8;
    --navbar-bg: #dedede;
    --card-bg: #efefef;
    --metadata-bg: rgba(0, 0, 0, 0.08);
    --stripe-bg: rgba(0, 0, 0, 0.04);
    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.08);
    --text-muted: #555f70;
    --dropdown-bg: #f5f5f5;
    --dropdown-hover-bg: #e0e0e0;
}

@supports(padding: max(0px)) {
    body {
        padding-top: env(safe-area-inset-top);
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }
}

body {
    overscroll-behavior-y: auto;
}

main {
    overscroll-behavior-y: auto;
    -webkit-overflow-scrolling: touch;
}

.container-fluid {
    overscroll-behavior-y: auto;
}

[data-bs-toggle="collapse"] .bi-chevron-down {
    transition: transform 0.2s ease-in-out;
}

[data-bs-toggle="collapse"][aria-expanded="true"] .bi-chevron-down {
    transform: rotate(180deg);
}

[data-bs-toggle="collapse"]:hover {
    opacity: 0.8;
}

@media (hover: none) and (pointer: coarse) {

    .btn {
        touch-action: manipulation;
        user-select: none;
        -webkit-tap-highlight-color: transparent;
    }

    .btn:focus {
        outline: none;
        box-shadow: none;
    }

    .btn:focus-visible {
        outline: 2px solid var(--bs-link-color);
        outline-offset: 2px;
    }
}

@media (max-width: 767px) {

    .btn {
        touch-action: manipulation;
        user-select: none;
        -webkit-tap-highlight-color: transparent;
    }

    .btn:focus,
    .btn:active:focus,
    .btn.active:focus,
    .btn.focus,
    .btn:active.focus,
    .btn.active.focus {
        outline: none !important;
        box-shadow: none !important;
    }

    .btn-outline-danger:focus {
        outline: none !important;
        box-shadow: none !important;
    }

    .btn-danger {
        background-color: #dc3545 !important;
        border-color: #dc3545 !important;
        color: white !important;
    }

    .btn-outline-danger {
        background-color: transparent !important;
        border-color: #dc3545 !important;
        color: #dc3545 !important;
    }
}

.navbar {
    background-color: var(--navbar-bg) !important;
}

[data-bs-theme="light"] .navbar {
    border-bottom: 1px solid var(--bs-border-color);
}

[data-bs-theme="dark"] .navbar {
    --bs-navbar-color: rgba(255, 255, 255, 0.85);
    --bs-navbar-hover-color: rgba(255, 255, 255, 1);
    --bs-navbar-disabled-color: rgba(255, 255, 255, 0.5);
    --bs-navbar-active-color: #fff;
    --bs-navbar-brand-color: #fff;
    --bs-navbar-brand-hover-color: #fff;
    --bs-navbar-toggler-border-color: rgba(255, 255, 255, 0.1);
}

[data-bs-theme="light"] .navbar {
    --bs-navbar-color: rgba(0, 0, 0, 0.65);
    --bs-navbar-hover-color: rgba(0, 0, 0, 0.8);
    --bs-navbar-disabled-color: rgba(0, 0, 0, 0.3);
    --bs-navbar-active-color: rgba(0, 0, 0, 0.9);
    --bs-navbar-brand-color: rgba(0, 0, 0, 0.9);
    --bs-navbar-brand-hover-color: rgba(0, 0, 0, 0.9);
    --bs-navbar-toggler-border-color: rgba(0, 0, 0, 0.1);
}

.navbar-toggler-icon {
    background-image: var(--toggler-icon);
}

[data-bs-theme="dark"] {
    --toggler-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

[data-bs-theme="light"] {
    --toggler-icon: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%280, 0, 0, 0.65%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.dropdown-menu {
    --bs-dropdown-bg: var(--dropdown-bg);
    --bs-dropdown-link-color: var(--bs-body-color);
    --bs-dropdown-link-hover-color: var(--bs-emphasis-color);
    --bs-dropdown-link-hover-bg: var(--dropdown-hover-bg);
    --bs-dropdown-divider-bg: var(--bs-border-color);
}

[data-bs-theme="light"] .dropdown-menu {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.12), 0 1px 3px rgba(0, 0, 0, 0.08);
}

.dropdown-menu form {
    margin: 0;
}

.dropdown-menu form button.dropdown-item {
    width: 100%;
    text-align: left;
    border: none;
    background: none;
    padding: 0.25rem 1rem;
    color: var(--bs-dropdown-link-color);
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out;
}

.dropdown-menu form button.dropdown-item:hover {
    background-color: var(--bs-dropdown-link-hover-bg);
    color: var(--bs-dropdown-link-hover-color);
}

.card,
.mobile-item-card {
    background-color: var(--card-bg);
    border-color: var(--bs-border-color);
}

[data-bs-theme="light"] .card,
[data-bs-theme="light"] .mobile-item-card {
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(0, 0, 0, 0.12);
}

[data-bs-theme="dark"] .card {
    box-shadow: var(--card-shadow);
}

a {
    color: var(--bs-link-color);
}

a:hover {
    color: var(--bs-link-hover-color);
}

.text-decoration-none {
    color: var(--bs-body-color) !important;
}

.text-muted {
    color: var(--text-muted) !important;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--bs-body-color);
    cursor: pointer;
    padding: 0.375rem 0.75rem;
    border-radius: 0.25rem;
    transition: background-color var(--transition-speed);
}

.theme-toggle:hover {
    background-color: var(--metadata-bg);
}

.responsive-btn .btn-text-mobile {
    display: none;
}

.responsive-btn .btn-text-desktop {
    display: inline;
}

@media (max-width: 767px) {
    .responsive-btn {
        font-size: 14px;
        padding: 6px 12px;
    }

    .responsive-btn .btn-text-mobile {
        display: inline;
    }

    .responsive-btn .btn-text-desktop {
        display: none;
    }
}

img {
    max-width: 100%;
    height: auto;
}

.item-thumbnail {
    width: 120px;
    height: 120px;
    object-fit: contain;
    border-radius: var(--border-radius);
    background-color: transparent;
}

.item-thumbnail span {
    font-size: 36px;
}

.item-image {
    max-width: 200px;
    max-height: 200px;
    object-fit: contain;
    border-radius: 10px;
    background-color: transparent;
}

.metadata-item,
.category-filters {
    background-color: var(--metadata-bg);
    padding: 10px;
    border-radius: var(--border-radius);
}

.metadata-item {
    margin-bottom: 10px;
}

.category-filters {
    border: 1px solid var(--bs-border-color);
}

.quantity-controls,
.mobile-quantity-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.mobile-quantity-controls {
    gap: 10px;
}

.mobile-quantity-controls form {
    display: inline-block;
    margin: 0;
}

.mobile-quantity-controls .btn {
    padding: 6px 12px;
    font-size: 16px;
    min-width: 44px;
    min-height: 44px;
}

.out-of-stock,
.out-of-stock td {
    background-color: rgba(220, 53, 69, 0.1) !important;
}

.low-stock,
.low-stock td {
    background-color: rgba(255, 193, 7, 0.1) !important;
}

.table {
    table-layout: auto;
    --bs-table-border-color: var(--bs-border-color);
}

[data-bs-theme="light"] .table {
    --bs-table-border-color: rgba(0, 0, 0, 0.12);
}

.table-striped>tbody>tr:nth-of-type(odd)>* {
    background-color: var(--stripe-bg);
}

[data-bs-theme="light"] .table-hover>tbody>tr:hover>* {
    background-color: rgba(0, 0, 0, 0.04);
}

.table th:last-child,
.table td:last-child {
    white-space: nowrap;
    min-width: 120px;
}

.table td:last-child .d-flex {
    flex-wrap: nowrap !important;
}

.table td:last-child .btn {
    white-space: nowrap;
}

.mobile-item-card {
    border-radius: var(--border-radius-lg);
    padding: 12px;
    margin-bottom: 12px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

@media (min-width: 768px) {
    .col-md-3 .card {
        position: sticky;
        top: 20px;
        z-index: 100;
    }
}

@media (max-width: 991px) and (min-width: 768px) {
    .item-thumbnail {
        width: 100px !important;
        height: 100px !important;
        max-width: 100px !important;
        max-height: 100px !important;
    }

    .item-image {
        max-width: 150px !important;
        max-height: 150px !important;
    }

    .table td {
        padding: 0.5rem;
        vertical-align: middle;
    }
}

@media (max-width: 767px) {
    .container-fluid {
        padding-left: 10px !important;
        padding-right: 10px !important;
    }

    h1 {
        font-size: 24px;
    }

    .card-body h5 {
        font-size: 18px;
    }

    .col-lg-9 h1 {
        font-size: 28px;
        margin-bottom: 1rem;
    }

    .col-lg-9 .d-flex {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .col-lg-9 .btn {
        font-size: 14px;
        padding: 8px 16px;
    }

    .category-filters {
        max-height: 150px !important;
    }

    .item-image {
        max-width: 100%;
        max-height: 200px;
        margin: 0 auto;
        display: block;
    }

    .quantity-controls {
        justify-content: center;
    }

    .quantity-controls .btn {
        padding: 8px 16px;
        font-size: 16px;
        min-width: 44px;
    }
}

@media (max-width: 576px) {
    .row>* {
        padding-left: 10px;
        padding-right: 10px;
    }

    [class*="col-"] {
        width: 100%;
    }
}

@media (max-width: 375px) {
    .mobile-item-image {
        width: 60px;
        height: 60px;
    }

    .mobile-item-name {
        font-size: 14px;
    }
}

.items-list {
    display: block;
}

@media (min-width: 768px) {
    .items-list {
        border: none;
        border-radius: 0;
        overflow: visible;
    }

    .items-header {
        display: grid !important;
        grid-template-columns: 120px minmax(200px, 1fr) minmax(150px, 250px) 100px 120px 240px;
        background-color: transparent;
        border-bottom: 2px solid var(--bs-border-color);
        font-weight: 600;
    }
    
    /* Adjust grid for guest users with owner column */
    .guest-view .items-header {
        grid-template-columns: 100px minmax(150px, 1fr) 120px minmax(120px, 200px) 80px 100px 180px;
    }

    .items-header>div {
        padding: 0.75rem;
        border-right: none;
    }

    .items-header>div:last-child {
        border-right: none;
        text-align: left;
    }

    .item-row {
        display: grid;
        grid-template-columns: 120px minmax(200px, 1fr) minmax(150px, 250px) 100px 120px 240px;
        border-bottom: 1px solid var(--bs-border-color);
    }
    
    /* Adjust grid for guest users with owner column */
    .guest-view .item-row {
        grid-template-columns: 100px minmax(150px, 1fr) 120px minmax(120px, 200px) 80px 100px 180px;
    }

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

    .item-row>div {
        padding: 0.75rem;
        display: flex;
        align-items: center;
        border-right: none;
        background-color: transparent;
    }

    .item-row>div:last-child {
        border-right: none;
    }

    .item-row:nth-child(odd) {
        background-color: var(--bs-body-bg);
    }

    .item-row:nth-child(even) {
        background-color: var(--stripe-bg);
    }

    .item-row.out-of-stock {
        background-color: rgba(220, 53, 69, 0.1) !important;
    }

    .item-row.low-stock {
        background-color: rgba(255, 193, 7, 0.1) !important;
    }

    .item-image-cell {
        justify-content: center;
    }

    .item-image-cell .item-thumbnail {
        width: 100px;
        height: 100px;
    }

    .item-categories-cell {
        flex-wrap: wrap;
        gap: 4px;
    }

    .item-actions-cell {
        justify-content: flex-start;
    }

    .item-actions-cell .action-buttons {
        display: flex;
        gap: 0.5rem;
        white-space: nowrap;
    }

    .item-quantity-cell .quantity-controls {
        justify-content: flex-start;
    }
}

@media (max-width: 767px) {
    .items-list {
        gap: 24px;
        background-color: transparent;
        border: none;
    }

    .item-row {
        display: grid;
        grid-template-areas:
            "image name name"
            "image categories categories"
            "type type type"
            "quantity quantity actions";
        grid-template-columns: 80px 1fr auto;
        gap: 8px;
        padding: 16px;
        background-color: var(--card-bg);
        border: 1px solid var(--bs-border-color);
        border-radius: var(--border-radius-lg);
        margin-bottom: 15px;
    }
    
    /* Adjust grid for guest users with owner column on mobile */
    .guest-view .item-row {
        grid-template-areas:
            "image name name"
            "image categories categories"
            "owner owner owner"
            "type type type"
            "quantity quantity actions";
    }

    .item-row:last-child {
        margin-bottom: 0;
    }

    .item-image-cell {
        grid-area: image;
        align-self: start;
    }

    .item-image-cell .item-thumbnail {
        width: 80px;
        height: 80px;
    }

    .item-name-cell {
        grid-area: name;
        font-size: 18px;
        font-weight: 600;
        align-self: center;
        line-height: 1.2;
    }

    .item-categories-cell {
        grid-area: categories;
        padding-top: 0;
        align-self: start;
    }

    .item-categories-cell .badge {
        font-size: 11px;
        padding: 3px 8px;
        margin-bottom: 4px;
    }

    .item-type-cell {
        grid-area: type;
        font-size: 14px;
        color: var(--text-muted);
        padding-top: 8px;
        border-top: 1px solid var(--bs-border-color);
    }
    
    .item-owner-cell {
        grid-area: owner;
        font-size: 14px;
        color: var(--text-muted);
        padding-top: 8px;
        border-top: 1px solid var(--bs-border-color);
    }

    .item-quantity-cell {
        grid-area: quantity;
        justify-content: flex-start;
        padding-top: 8px;
    }

    .item-actions-cell {
        grid-area: actions;
        justify-self: end;
        padding-top: 8px;
    }

    .item-actions-cell .action-buttons {
        display: flex;
        gap: 6px;
    }

    .item-actions-cell .btn {
        padding: 8px 14px;
        font-size: 14px;
        min-height: 44px;
    }

    .item-quantity-cell .quantity-controls {
        gap: 8px;
    }

    .item-quantity-cell .btn {
        padding: 6px 12px;
        font-size: 16px;
        min-width: 44px;
        min-height: 44px;
    }
}