:root {
    --primary-color: #4a6cf7;
    --primary-hover: #3a5ce7;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-gray: #f8f9fa;
    --medium-gray: #e9ecef;
    --dark-gray: #343a40;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: #f5f7f9;
}

.container {
    width: 100%;
    max-width: 2560px;
    margin: 0 auto;
}

/* Breadcrumbs */
.breadcrumbs {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    flex-wrap: wrap;
}

    .breadcrumbs a {
        color: var(--text-secondary);
        text-decoration: none;
        transition: var(--transition);
    }

        .breadcrumbs a:hover {
            color: var(--primary-color);
        }

.separator {
    margin: 0 0.5rem;
    color: var(--text-secondary);
}

.current {
    font-weight: 600;
    color: var(--text-primary);
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

    .page-header h1 {
        font-size: 2rem;
        font-weight: 700;
    }

.close-button {
    text-decoration: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

    .close-button:hover {
        background-color: var(--medium-gray);
        color: var(--text-primary);
    }

/* Alerts */
.alert {
    display: flex;
    align-items: flex-start;
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
}

.alert-success {
    background-color: rgba(40, 167, 69, 0.15);
    border-left: 4px solid var(--success-color);
}

.alert-error {
    background-color: rgba(220, 53, 69, 0.15);
    border-left: 4px solid var(--danger-color);
}

.alert-icon {
    margin-right: 1rem;
    font-size: 1.2rem;
}

.alert div {
    flex: 1;
}

.alert-close {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* Cards */
.card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
    overflow: hidden;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

    .card-header h2,
    .card-header h3 {
        margin: 0;
        font-weight: 600;
    }

.card-body {
    padding: 1.5rem;
}

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

.stat-card {
    background-color: var(--light-gray);
    padding: 1.25rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

    .stat-card:hover {
        transform: translateY(-3px);
        box-shadow: var(--box-shadow);
    }

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Actions */
.action-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.25rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-size: 0.95rem;
}

    .button i {
        margin-right: 0.5rem;
    }

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

    .primary-button:hover {
        background-color: var(--primary-hover);
    }

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

    .success-button:hover {
        background-color: #218838;
    }

.secondary-button {
    background-color: var(--medium-gray);
    color: var(--text-primary);
}

    .secondary-button:hover {
        background-color: #d1d7dd;
    }

.small-button {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

.button[disabled] {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

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

    .data-table th {
        text-align: left;
        padding: 1rem;
        font-weight: 600;
        border-bottom: 2px solid var(--border-color);
        color: var(--text-secondary);
    }

    .data-table td {
        padding: 1rem;
        border-bottom: 1px solid var(--border-color);
        vertical-align: middle;
    }

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

.button-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Form Inputs */
.form-input {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.6rem 1rem;
    font-size: 0.95rem;
    width: 100%;
    max-width: 300px;
    transition: var(--transition);
}

    .form-input:focus {
        outline: none;
        border-color: var(--primary-color);
        box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.15);
    }

/* Badges */
.badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-type {
    background-color: rgba(74, 108, 247, 0.15);
    color: var(--primary-color);
}

/* Item type grid */
.item-type-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1.25rem;
}

.item-type-card {
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    text-align: center;
    transition: var(--transition);
}

    .item-type-card:hover {
        transform: translateY(-3px);
        box-shadow: var(--box-shadow);
    }

.item-type-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
}

.item-type-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.item-type-count {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Empty state */
.empty-state {
    padding: 2.5rem 1.5rem;
    text-align: center;
}

.empty-state-icon {
    font-size: 3rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.empty-state p {
    color: var(--text-secondary);
}

/* Utility classes */
.text-center {
    text-align: center;
}

.text-success {
    color: var(--success-color);
    font-weight: 600;
}

.text-danger {
    color: var(--danger-color);
    font-weight: 600;
}

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

/* Row styles */
.standardized-row {
    background-color: rgba(40, 167, 69, 0.04);
}

.needs-standardization-row {
    background-color: rgba(255, 193, 7, 0.04);
}

/* Animations */
@keyframes modalopen {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes highlightFade {
    0% {
        background-color: rgba(92, 184, 92, 0.2);
    }

    100% {
        background-color: transparent;
    }
}

.highlight-success {
    animation: highlightFade 3s;
}

/* Responsive adjustments */
@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .item-type-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
}

@media (max-width: 992px) {
    .container {
    }

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

@media (max-width: 768px) {
    .page-header h1 {
        font-size: 1.75rem;
    }

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

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

        .action-group .button {
            width: 100%;
        }

    .data-table th,
    .data-table td {
        padding: 0.75rem;
    }

    .data-table .button-group {
        flex-direction: column;
    }

        .data-table .button-group .button,
        .data-table .button-group form {
            width: 100%;
        }
}

@media (max-width: 576px) {
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .container { /* effecting Details */
        padding: 0!important;
        margin: 0!important;
    }
    .close-button {
        align-self: flex-end;
    }

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

    .filter-controls {
        width: 100%;
    }

    .form-input {
        max-width: 100%;
    }
}

/* Large screen optimizations */
@media (min-width: 1600px) {
    .container {
    }

    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .item-type-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (min-width: 2000px) {
    .container {
        margin: 0;
        padding: 0 25px;
    }

    body {
        font-size: 18px;
    }

    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}