/* Admin Panel CSS */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --border-color: #e2e8f0;
    --text-color: #374151;
    --text-light: #6b7280;
    --sidebar-width: 250px;
    --header-height: 70px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f1f5f9;
    color: var(--text-color);
    line-height: 1.6;
}

.admin-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

.sidebar-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.sidebar-header p {
    font-size: 0.875rem;
    opacity: 0.8;
}

.sidebar-nav {
    padding: 20px 0;
}

.nav-item {
    margin-bottom: 5px;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background-color: rgba(255,255,255,0.1);
    border-left-color: white;
    transform: translateX(5px);
}

.nav-link.active {
    background-color: rgba(255,255,255,0.2);
    border-left-color: white;
}

.nav-link i {
    width: 20px;
    margin-right: 12px;
    font-size: 1.1rem;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.admin-header {
    background: white;
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    height: var(--header-height);
}

.header-left h1 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.header-left p {
    color: var(--text-light);
    font-size: 0.875rem;
}

.admin-user {
    display: flex;
    align-items: center;
    gap: 15px;
}

.admin-user span {
    font-weight: 600;
    color: var(--dark-color);
}

.logout-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background-color: var(--danger-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    background-color: #dc2626;
    transform: translateY(-2px);
}

/* Dashboard Content */
.dashboard-content {
    padding: 30px;
    flex: 1;
}

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

.stat-card {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.stat-card:nth-child(1) .stat-icon {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}

.stat-card:nth-child(2) .stat-icon {
    background: linear-gradient(135deg, #10b981, #059669);
}

.stat-card:nth-child(3) .stat-icon {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.stat-card:nth-child(4) .stat-icon {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.stat-info h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.stat-info p {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Recent Content */
.recent-content {
    margin-top: 30px;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 25px;
}

.content-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.card-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f8fafc;
}

.card-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--dark-color);
}

.view-all {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.view-all:hover {
    color: var(--secondary-color);
}

.card-content {
    padding: 20px 25px;
}

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

.product-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.product-item:hover {
    background-color: #f8fafc;
    transform: translateX(5px);
}

.product-image {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.no-image {
    width: 100%;
    height: 100%;
    background: #e5e7eb;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: var(--text-light);
}

.product-info {
    flex: 1;
}

.product-info h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.product-category {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-bottom: 3px;
}

.product-date {
    font-size: 0.75rem;
    color: var(--text-light);
}

.product-actions {
    display: flex;
    gap: 8px;
}

.btn-edit, .btn-view {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.875rem;
}

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

.btn-edit:hover {
    background-color: var(--secondary-color);
    transform: scale(1.1);
}

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

.btn-view:hover {
    background-color: #059669;
    transform: scale(1.1);
}

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

.message-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.message-item:hover {
    background-color: #f8fafc;
    transform: translateX(5px);
}

.message-info {
    flex: 1;
}

.message-info h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.message-email {
    font-size: 0.75rem;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.message-text {
    font-size: 0.75rem;
    color: var(--text-color);
    margin-bottom: 5px;
    line-height: 1.4;
}

.message-date {
    font-size: 0.75rem;
    color: var(--text-light);
}

.message-actions {
    display: flex;
    gap: 8px;
}

/* No Data */
.no-data {
    text-align: center;
    color: var(--text-light);
    font-style: italic;
    padding: 40px 20px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .admin-header {
        padding: 15px 20px;
        flex-direction: column;
        gap: 15px;
        height: auto;
    }
    
    .header-left h1 {
        font-size: 1.5rem;
    }
    
    .dashboard-content {
        padding: 20px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 15px;
    }
    
    .stat-card {
        padding: 20px;
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    .stat-info h3 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .content-card {
        margin-bottom: 20px;
    }
    
    .product-item, .message-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .product-actions, .message-actions {
        align-self: flex-end;
    }
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1001;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1.25rem;
}

@media (max-width: 1024px) {
    .mobile-menu-toggle {
        display: block;
    }
}

/* Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 999;
}

.sidebar-overlay.show {
    display: block;
}