:root {
            --primary: #274c77;
            --secondary: #6096ba;
            --accent: #f72585;
            --light: #f8f9fa;
            --dark: #212529;
            --success: #4cc9f0;
            --warning: #f9c74f;
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: url('../theme/image/background.svg') no-repeat center center fixed;
            background-size: cover;
            background-color: #f0f3fb;
            min-height: 100vh;
            color: #333;
            line-height: 1.6;
            padding-top: 70px;
        }
        
        .glass-card {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(10px);
            border-radius: 16px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.5);
            overflow: hidden;
        }
        
        .drop-zone {
            transition: all 0.3s ease;
            border: 2px dashed var(--primary);
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.7);
        }
        
        .drop-zone.dragover {
            background: rgba(67, 97, 238, 0.15);
            transform: scale(1.02);
            box-shadow: 0 0 20px rgba(67, 97, 238, 0.2);
        }
        
        .page-thumbnail {
            transition: all 0.2s ease;
            border: 2px solid transparent;
            cursor: pointer;
            border-radius: 8px;
            overflow: hidden;
        }
        
        .page-thumbnail:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
        }
        
        .page-thumbnail.selected {
            border-color: var(--accent);
            box-shadow: 0 10px 20px rgba(247, 37, 133, 0.3);
        }
        
        .progress-bar {
            transition: width 0.5s ease;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }
        
        .tooltip {
            position: relative;
        }
        
        .tooltip:hover::after {
            content: attr(data-tip);
            position: absolute;
            bottom: 100%;
            left: 50%;
            transform: translateX(-50%);
            padding: 6px 12px;
            background: var(--dark);
            color: white;
            border-radius: 6px;
            font-size: 12px;
            white-space: nowrap;
            z-index: 100;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }
        
        .pulse {
            animation: pulse 2s infinite;
        }
        
        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
            100% { transform: translateY(0px); }
        }
        
        .float {
            animation: float 3s ease-in-out infinite;
        }
        
        .ad-container {
            border-radius: 12px;
            overflow: hidden;
            background: rgba(255, 255, 255, 0.8);
            margin: 20px 0;
        }
        
        .feature-card {
            transition: all 0.3s ease;
            border-radius: 12px;
            overflow: hidden;
            height: 100%;
        }
        
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            border: none;
            border-radius: 10px;
            padding: 12px 24px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 6px rgba(67, 97, 238, 0.2);
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 7px 14px rgba(67, 97, 238, 0.3);
        }
        
        .btn-secondary {
            background: rgba(255, 255, 255, 0.9);
            color: var(--dark);
            border: 1px solid #e2e8f0;
            border-radius: 10px;
            padding: 12px 24px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 1);
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }
        
        .page-counter {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            border-radius: 20px;
            padding: 4px 12px;
            font-size: 14px;
            font-weight: 600;
        }
        
        /* Responsive adjustments */
        @media (max-width: 768px) {
            .container {
                padding: 0 15px;
            }
            
            .feature-card {
                margin-bottom: 20px;
            }
            
            .btn-primary, .btn-secondary {
                padding: 10px 20px;
                font-size: 14px;
            }
        }
        
        /* Custom scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
        }
        
        ::-webkit-scrollbar-track {
            background: rgba(0, 0, 0, 0.05);
            border-radius: 10px;
        }
        
        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 10px;
        }
        
        ::-webkit-scrollbar-thumb:hover {
            background: var(--secondary);
        }
        
        /* Selection styles */
        ::selection {
            background: rgba(67, 97, 238, 0.2);
        }
        
        /* Loading animation */
        .loading-dots {
            display: inline-flex;
        }
        
        .loading-dots span {
            width: 8px;
            height: 8px;
            margin: 0 3px;
            background: var(--primary);
            border-radius: 50%;
            animation: bounce 1.5s infinite ease-in-out;
        }
        
        .loading-dots span:nth-child(2) {
            animation-delay: 0.2s;
        }
        
        .loading-dots span:nth-child(3) {
            animation-delay: 0.4s;
        }
        
        @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
    /* Additional styles for content sections */
.glass-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.5);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.15);
}

.feature-card {
    transition: all 0.3s ease;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

table {
    border-radius: 8px;
    overflow: hidden;
}

th {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

tr:nth-child(even) {
    background-color: rgba(67, 97, 238, 0.05);
}

/* Responsive adjustments for content */
@media (max-width: 768px) {
    .glass-card {
        padding: 1.5rem;
    }
    
    .text-3xl {
        font-size: 1.75rem;
    }
    
    .text-xl {
        font-size: 1.25rem;
    }
}