@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&display=swap');
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: #333;
            line-height: 1.5;
        }
        
        .container {
            max-width: 850px;
            margin: 0 auto;
            padding: 20px;
            background: white;
            box-shadow: 0 15px 35px rgba(0,0,0,0.2);
        }
        
        .header {
            text-align: center;
            background: linear-gradient(135deg, #2d3748, #4a5568);
            color: white;
            padding: 40px 20px;
            margin: -20px -20px 40px -20px;
            border-radius: 0 0 20px 20px;
        }
        
        .header h1 {
            font-size: 2.8em;
            font-weight: 700;
            margin-bottom: 15px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        
        .header .subtitle {
            font-size: 1.3em;
            opacity: 0.9;
            font-weight: 400;
        }
        
        .overview-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-bottom: 40px;
        }
        
        .stat-card {
            background: linear-gradient(135deg, #4299e1, #3182ce);
            color: white;
            padding: 25px;
            border-radius: 15px;
            text-align: center;
            box-shadow: 0 6px 20px rgba(66, 153, 225, 0.3);
            transition: transform 0.3s ease;
        }
        
        .stat-card:hover {
            transform: translateY(-5px);
        }
        
        .stat-card .icon {
            font-size: 2.5em;
            margin-bottom: 15px;
            display: block;
        }
        
        .stat-card h3 {
            font-size: 1.1em;
            font-weight: 600;
            margin-bottom: 8px;
            opacity: 0.9;
        }
        
        .stat-card .value {
            font-size: 1.4em;
            font-weight: 700;
        }
        
        .section {
            margin-bottom: 40px;
        }
        
        .section-header {
            background: linear-gradient(135deg, #38a169, #2f855a);
            color: white;
            padding: 20px;
            border-radius: 12px;
            margin-bottom: 25px;
            box-shadow: 0 6px 20px rgba(56, 161, 105, 0.3);
        }
        
        .section-header h2 {
            font-size: 1.8em;
            font-weight: 600;
            display: flex;
            align-items: center;
        }
        
        .section-header .icon {
            font-size: 1.5em;
            margin-right: 15px;
        }
        
        .concept-flow {
            background: #f7fafc;
            padding: 30px;
            border-radius: 15px;
            border: 3px solid #e2e8f0;
            margin-bottom: 30px;
            position: relative;
        }
        
        .concept-flow::before {
            content: "💡";
            position: absolute;
            top: -15px;
            left: 30px;
            background: white;
            padding: 5px 10px;
            border-radius: 50%;
            font-size: 1.5em;
        }
        
        .flow-steps {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 20px;
        }
        
        .flow-step {
            background: linear-gradient(135deg, #ffeaa7, #fdcb6e);
            padding: 20px;
            border-radius: 12px;
            text-align: center;
            min-width: 150px;
            flex: 1;
            box-shadow: 0 4px 15px rgba(253, 203, 110, 0.3);
            position: relative;
        }
        
        .flow-step:not(:last-child)::after {
            content: "→";
            position: absolute;
            right: -25px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 2em;
            color: #4299e1;
            font-weight: bold;
        }
        
        .flow-step .step-number {
            background: #2d3748;
            color: white;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 10px auto;
            font-weight: 600;
        }
        
        .flow-step h4 {
            color: #2d3748;
            font-weight: 600;
            margin-bottom: 8px;
        }
        
        .flow-step p {
            color: #4a5568;
            font-size: 0.9em;
        }
        
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
            margin-top: 25px;
        }
        
        .benefit-card {
            background: white;
            padding: 25px;
            border-radius: 15px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.1);
            border-left: 5px solid #e53e3e;
            transition: transform 0.3s ease;
        }
        
        .benefit-card:nth-child(2) { border-left-color: #38a169; }
        .benefit-card:nth-child(3) { border-left-color: #3182ce; }
        .benefit-card:nth-child(4) { border-left-color: #d69e2e; }
        
        .benefit-card:hover {
            transform: translateY(-8px);
        }
        
        .benefit-card .icon {
            font-size: 3em;
            margin-bottom: 15px;
            display: block;
        }
        
        .benefit-card h4 {
            color: #2d3748;
            font-weight: 600;
            margin-bottom: 12px;
            font-size: 1.2em;
        }
        
        .benefit-card p {
            color: #4a5568;
            font-size: 0.95em;
        }
        
        .implementation-section {
            background: linear-gradient(135deg, #a8edea, #fed6e3);
            padding: 30px;
            border-radius: 20px;
            margin: 30px 0;
            box-shadow: 0 8px 25px rgba(168, 237, 234, 0.4);
        }
        
        .implementation-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 25px;
        }
        
        .implementation-card {
            background: rgba(255,255,255,0.9);
            padding: 20px;
            border-radius: 12px;
            text-align: center;
            backdrop-filter: blur(10px);
        }
        
        .implementation-card .icon {
            font-size: 2.5em;
            margin-bottom: 15px;
            display: block;
        }
        
        .implementation-card h4 {
            color: #2d3748;
            font-weight: 600;
            margin-bottom: 10px;
        }
        
        .example-box {
            background: #2d3748;
            color: white;
            padding: 25px;
            border-radius: 15px;
            margin: 25px 0;
        }
        
        .example-box h3 {
            color: #4299e1;
            margin-bottom: 15px;
            font-size: 1.3em;
        }
        
        .example-sequence {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            justify-content: center;
            margin-top: 20px;
        }
        
        .sequence-item {
            background: linear-gradient(135deg, #4299e1, #3182ce);
            padding: 12px 20px;
            border-radius: 25px;
            font-weight: 600;
            position: relative;
        }
        
        .sequence-item:not(:last-child)::after {
            content: "▶";
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            color: #4299e1;
        }
        
        .footer {
            background: #2d3748;
            color: white;
            padding: 25px;
            text-align: center;
            margin: 40px -20px -20px -20px;
            border-radius: 0 0 15px 15px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            align-items: center;
        }
        
        .footer h3 {
            color: #4299e1;
            font-size: 1.2em;
            margin-bottom: 10px;
        }
        
        .footer p {
            opacity: 0.9;
            font-size: 0.95em;
        }
        
        @media print {
            body { background: white; }
            .container { box-shadow: none; max-width: none; }
            .stat-card:hover, .benefit-card:hover { transform: none; }
        }
        
        @media (max-width: 768px) {
            .header h1 { font-size: 2.2em; }
            .flow-steps { flex-direction: column; }
            .flow-step:not(:last-child)::after { 
                content: "↓"; 
                position: static; 
                display: block; 
                margin: 10px 0; 
            }
            .example-sequence { flex-direction: column; align-items: center; }
            .sequence-item:not(:last-child)::after { 
                content: "↓"; 
                position: static; 
                display: block; 
                text-align: center; 
            }
        }