/* Admin Layout Styles */
.admin-layout {
    display: flex;
    min-height: 100vh;
    background: #f5f7fa;
}

.admin-sidebar {
    width: 260px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

.sidebar-header {
    padding: 0 1.5rem 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
}

.sidebar-header .subtitle {
    margin: 0.25rem 0 0;
    opacity: 0.8;
    font-size: 0.875rem;
}

.sidebar-nav {
    padding: 1.5rem 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 0.875rem 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.1);
    border-left-color: white;
}

.nav-item.active {
    background: rgba(255, 255, 255, 0.15);
    border-left-color: white;
    font-weight: 600;
}

.nav-icon {
    font-size: 1.25rem;
    margin-right: 0.75rem;
}

.nav-text {
    font-size: 0.9375rem;
}

.nav-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 1rem 1.5rem;
}

.admin-main {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
}

.admin-header {
    background: white;
    padding: 1rem 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.user-greeting {
    font-size: 0.9375rem;
    color: #4a5568;
}

.admin-content {
    flex: 1;
    padding: 2rem;
}

/* Dashboard Styles */
.dashboard-container {
    max-width: 1400px;
}

.dashboard-title {
    font-size: 2rem;
    font-weight: 700;
    color: #1a202c;
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.stat-icon {
    font-size: 2.5rem;
    margin-right: 1rem;
}

.stat-content h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #667eea;
    margin: 0;
}

.stat-content p {
    margin: 0.25rem 0 0;
    color: #718096;
    font-size: 0.875rem;
}

.dashboard-sections {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.section {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1a202c;
    margin: 0 0 1.5rem;
}

.recent-assets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
}

.asset-card {
    border-radius: 8px;
    overflow: hidden;
    background: #f7fafc;
    transition: transform 0.2s ease;
    cursor: pointer;
}

.asset-card:hover {
    transform: scale(1.05);
}

.asset-image {
    width: 100%;
    height: 150px;
    background-size: cover;
    background-position: center;
    background-color: #e2e8f0;
}

.asset-info {
    padding: 0.75rem;
}

.asset-info h4 {
    font-size: 0.875rem;
    font-weight: 600;
    margin: 0 0 0.25rem;
    color: #2d3748;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.asset-type {
    font-size: 0.75rem;
    color: #667eea;
    margin: 0;
    font-weight: 500;
}

.asset-date {
    font-size: 0.75rem;
    color: #a0aec0;
    margin: 0.25rem 0 0;
}

.projects-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.project-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: #f7fafc;
    border-radius: 8px;
    transition: background 0.2s ease;
}

.project-item:hover {
    background: #edf2f7;
}

.project-info h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    margin: 0 0 0.25rem;
    color: #2d3748;
}

.project-info p {
    font-size: 0.8125rem;
    color: #718096;
    margin: 0 0 0.25rem;
}

.asset-count {
    font-size: 0.75rem;
    color: #a0aec0;
}

.btn-link {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
}

.quick-actions {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.quick-actions h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1a202c;
    margin: 0 0 1.5rem;
}

.action-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
}

.btn-icon {
    margin-right: 0.5rem;
    font-size: 1.125rem;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #48bb78;
    color: white;
}

.btn-secondary:hover {
    background: #38a169;
    transform: translateY(-2px);
}

.btn-outline {
    background: white;
    color: #667eea;
    border: 2px solid #667eea;
}

.btn-outline:hover {
    background: #667eea;
    color: white;
}

.empty-state {
    text-align: center;
    color: #a0aec0;
    padding: 2rem;
    font-size: 0.9375rem;
}

.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #e2e8f0;
    border-top-color: #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-spinner p {
    margin-top: 1rem;
    color: #718096;
}

/* Responsive */
@media (max-width: 768px) {
    .admin-sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .admin-main {
        margin-left: 0;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .dashboard-sections {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}