:root {
            --primary: #6a5acd;      /* Slate blue */
            --secondary: #ff69b4;    /* Hot pink */
            --accent: #ff1493;       /* Deep pink */
            --light-blue: #e6f0ff;   /* Very light blue */
            --light-pink: #fff0f5;   /* Lavender blush */
            --dark: #4b0082;         /* Indigo */
            --text: #333333;
            --light: #f8f9fa;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: var(--text);
            background-color: #f8f9fa;
        }
        
        .navbar {
            background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: white !important;
        }
        
        .nav-link {
            color: rgba(255,255,255,0.85) !important;
            font-weight: 500;
        }
        
        .nav-link:hover, .nav-link.active {
            color: white !important;
        }
        
        .page-header {
            background: linear-gradient(135deg, var(--light-blue) 0%, var(--light-pink) 100%);
            padding: 60px 0 40px;
            margin-bottom: 30px;
        }
        
        .dashboard-container {
            margin-bottom: 50px;
        }
        
        .sidebar {
            background: white;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            padding: 25px;
            margin-bottom: 30px;
            position: sticky;
            top: 20px;
        }
        
        .user-profile {
            text-align: center;
            padding-bottom: 20px;
            margin-bottom: 20px;
            border-bottom: 1px solid #eee;
        }
        
        .user-avatar {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 15px;
            border: 4px solid var(--light-blue);
        }
        
        .user-name {
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 5px;
        }
        
        .user-email {
            color: #666;
            font-size: 0.9rem;
        }
        
        .sidebar-nav {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .sidebar-nav li {
            margin-bottom: 8px;
        }
        
        .sidebar-nav a {
            display: flex;
            align-items: center;
            padding: 12px 15px;
            color: #555;
            text-decoration: none;
            border-radius: 8px;
            transition: all 0.3s;
        }
        
        .sidebar-nav a:hover, .sidebar-nav a.active {
            background: var(--light-blue);
            color: var(--primary);
        }
        
        .sidebar-nav i {
            margin-right: 10px;
            width: 20px;
            text-align: center;
        }
        
        .dashboard-content {
            background: white;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            padding: 30px;
            margin-bottom: 30px;
        }
        
        .section-title {
            position: relative;
            margin-bottom: 1.5rem;
            font-weight: 700;
            color: var(--dark);
            padding-bottom: 10px;
        }
        
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            border-radius: 2px;
        }
        
        .welcome-card {
            background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
            color: white;
            border-radius: 12px;
            padding: 25px;
            margin-bottom: 30px;
        }
        
        .welcome-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 15px;
            margin-bottom: 30px;
        }
        
        .stat-card {
            background: white;
            border-radius: 10px;
            padding: 20px;
            text-align: center;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
            transition: transform 0.3s;
        }
        
        .stat-card:hover {
            transform: translateY(-5px);
        }
        
        .stat-icon {
            width: 50px;
            height: 50px;
            background: var(--light-blue);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin: 0 auto 15px;
        }
        
        .stat-number {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 5px;
        }
        
        .stat-label {
            color: #666;
            font-size: 0.9rem;
        }
        
        .order-card {
            border: 1px solid #eee;
            border-radius: 10px;
            padding: 20px;
            margin-bottom: 20px;
            transition: all 0.3s;
        }
        
        .order-card:hover {
            border-color: var(--primary);
            box-shadow: 0 5px 15px rgba(106, 90, 205, 0.1);
        }
        
        .order-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid #eee;
        }
        
        .order-id {
            font-weight: 700;
            color: var(--dark);
        }
        
        .order-date {
            color: #666;
        }
        
        .order-status {
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        
        .status-delivered {
            background: #e7f7ef;
            color: #2ed573;
        }
        
        .status-processing {
            background: #fff4e6;
            color: #ffa502;
        }
        
        .status-shipped {
            background: #e6f3ff;
            color: #1e90ff;
        }
        
        .order-items {
            display: flex;
            gap: 15px;
            margin-bottom: 15px;
        }
        
        .order-item-image {
            width: 60px;
            height: 80px;
            object-fit: cover;
            border-radius: 6px;
        }
        
        .order-item-details {
            flex-grow: 1;
        }
        
        .order-item-title {
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 5px;
        }
        
        .order-item-author {
            color: #666;
            font-size: 0.9rem;
            margin-bottom: 5px;
        }
        
        .order-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .order-total {
            font-weight: 700;
            color: var(--dark);
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
            border: none;
            border-radius: 30px;
            padding: 10px 20px;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(106, 90, 205, 0.4);
        }
        
        .btn-outline-primary {
            border: 2px solid var(--primary);
            color: var(--primary);
            border-radius: 30px;
            padding: 8px 18px;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .btn-outline-primary:hover {
            background: var(--primary);
            color: white;
        }
        
        .wishlist-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        
        .wishlist-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
            transition: all 0.3s;
        }
        
        .wishlist-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        
        .wishlist-image {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        
        .wishlist-details {
            padding: 15px;
        }
        
        .wishlist-title {
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 5px;
            font-size: 0.95rem;
        }
        
        .wishlist-author {
            color: #666;
            font-size: 0.85rem;
            margin-bottom: 10px;
        }
        
        .wishlist-price {
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 15px;
        }
        
        .wishlist-actions {
            display: flex;
            justify-content: space-between;
        }
        
        .form-label {
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
        }
        
        .form-control {
            border: 1px solid #ddd;
            border-radius: 8px;
            padding: 12px 15px;
            transition: all 0.3s;
            margin-bottom: 20px;
        }
        
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 0.25rem rgba(106, 90, 205, 0.25);
        }
        
        .reading-preferences {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 15px;
            margin-bottom: 30px;
        }
        
        .preference-card {
            background: white;
            border: 2px solid #eee;
            border-radius: 10px;
            padding: 20px;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .preference-card:hover, .preference-card.active {
            border-color: var(--primary);
            background: var(--light-blue);
        }
        
        .preference-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 10px;
        }
        
        .preference-name {
            font-weight: 600;
            color: var(--dark);
        }
        
        .footer {
            background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
            color: white;
            padding: 60px 0 30px;
            margin-top: 50px;
        }
        
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            transition: all 0.3s;
        }
        
        .social-links a:hover {
            background: var(--secondary);
            transform: translateY(-3px);
        }
        
        .tab-content {
            display: none;
        }
        
        .tab-content.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: #666;
        }
        
        .empty-icon {
            font-size: 3rem;
            color: #ddd;
            margin-bottom: 20px;
        }
        
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .wishlist-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .order-header {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .order-status {
                margin-top: 10px;
            }
        }
        
        @media (max-width: 576px) {
            .stats-grid, .wishlist-grid {
                grid-template-columns: 1fr;
            }
            
            .order-items {
                flex-direction: column;
            }
        }