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

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --danger: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
    --light: #f8fafc;
    --dark: #1e293b;
    --secondary: #64748b;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f1f5f9;
}

/* Navbar */
.navbar {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.navbar-menu {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    padding: 8px 15px;
    border-radius: 8px;
    transition: all 0.3s;
}

.nav-link:hover {
    background: var(--light);
    color: var(--primary);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.user-role {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

.btn-logout {
    background: var(--danger);
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-logout:hover {
    background: #dc2626;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 30px auto;
    padding: 0 20px;
}

.page-header {
    margin-bottom: 30px;
}

.page-header h1 {
    color: var(--dark);
    font-size: 2rem;
    margin-bottom: 10px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stats-grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.stat-card h3 {
    color: var(--secondary);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-success {
    color: var(--success);
}

.stat-warning {
    color: var(--warning);
}

.stat-danger {
    color: var(--danger);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 25px;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    color: var(--secondary);
    transition: all 0.3s;
}

.tab-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Card */
.card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    margin-bottom: 20px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-title {
    font-size: 1.3rem;
    color: var(--dark);
    font-weight: 600;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

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

.btn-success:hover {
    background: #059669;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-warning {
    background: var(--warning);
    color: white;
}

.btn-warning:hover {
    background: #d97706;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
}

/* Search Box */
.search-box {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-input {
    flex: 1;
    min-width: 200px;
    padding: 12px 15px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
}

.filter-select {
    padding: 12px 15px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
}

/* Items Grid */
.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.item-card {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s;
    cursor: pointer;
}

.item-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.item-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--light);
}

.item-body {
    padding: 15px;
}

.item-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.item-meta {
    display: flex;
    flex-direction: column;
    gap: 5px;
    color: var(--secondary);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.item-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

/* Badge */
.badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.badge-success {
    background: #d1fae5;
    color: var(--success);
}

.badge-warning {
    background: #fef3c7;
    color: var(--warning);
}

.badge-danger {
    background: #fee2e2;
    color: var(--danger);
}

.badge-primary {
    background: #dbeafe;
    color: var(--primary);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    animation: fadeIn 0.3s;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 20px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s;
}

.modal-large {
    max-width: 900px;
}

.modal-header {
    padding: 25px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 600;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--secondary);
}

.modal-body {
    padding: 25px;
}

/* Form */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

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

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.data-table thead {
    background: var(--light);
}

.data-table th,
.data-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.data-table th {
    font-weight: 600;
    color: var(--dark);
}

.data-table tr:hover {
    background: var(--light);
}

/* Claims List */
.claims-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.claim-card {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 15px;
    padding: 20px;
    transition: all 0.3s;
}

.claim-card:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.claim-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.claim-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin-bottom: 15px;
}

.claim-actions {
    display: flex;
    gap: 10px;
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.category-card {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: 10px;
}

/* Report Section */
.report-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.report-filters,
.report-preview {
    background: var(--light);
    padding: 20px;
    border-radius: 15px;
}

.report-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.report-stats {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 15px;
}

.report-stat-item {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    background: white;
    border-radius: 8px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--secondary);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

/* Loading */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 15px;
    }

    .navbar-menu {
        flex-direction: column;
        width: 100%;
    }

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

    .search-box {
        flex-direction: column;
    }

    .search-input {
        width: 100%;
    }

    .report-section {
        grid-template-columns: 1fr;
    }

    .data-table {
        font-size: 0.9rem;
    }

    .data-table th,
    .data-table td {
        padding: 10px;
    }
}