<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Page Not Found</title>
    <!-- Google Fonts -->
    <link href="https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600&family=Inter:wght@300;400&display=swap" rel="stylesheet">
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            color: #333;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 20px;
            line-height: 1.6;
        }
        
        .container {
            max-width: 700px;
            width: 100%;
            text-align: center;
            background-color: rgba(255, 255, 255, 0.95);
            border-radius: 20px;
            padding: 50px 40px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        
        .header {
            margin-bottom: 40px;
        }
        
        .error-code {
            font-family: 'Poppins', sans-serif;
            font-size: 120px;
            font-weight: 600;
            color: #4a6cf7;
            line-height: 1;
            margin-bottom: 10px;
            text-shadow: 3px 3px 0 rgba(74, 108, 247, 0.1);
        }
        
        .error-title {
            font-family: 'Poppins', sans-serif;
            font-size: 32px;
            font-weight: 600;
            color: #222;
            margin-bottom: 5px;
            letter-spacing: -0.5px;
        }
        
        .content-box {
            background-color: rgba(250, 251, 255, 0.9);
            border-radius: 15px;
            padding: 40px 35px;
            margin-bottom: 40px;
            border-left: 5px solid #4a6cf7;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
        }
        
        .message {
            font-size: 20px;
            line-height: 1.8;
            color: #444;
            margin-bottom: 20px;
            font-weight: 400;
        }
        
        .message-highlight {
            font-family: 'Poppins', sans-serif;
            font-weight: 600;
            color: #4a6cf7;
        }
        
        .quote {
            font-style: italic;
            font-size: 18px;
            color: #666;
            border-left: 3px solid #ddd;
            padding-left: 20px;
            margin: 25px 0;
            text-align: left;
        }
        
        .home-link {
            display: inline-block;
            margin-top: 20px;
            font-family: 'Poppins', sans-serif;
            font-size: 16px;
            font-weight: 500;
            color: #4a6cf7;
            text-decoration: none;
            padding: 12px 24px;
            border-radius: 10px;
            background-color: rgba(74, 108, 247, 0.1);
            transition: all 0.3s ease;
        }
        
        .home-link:hover {
            background-color: rgba(74, 108, 247, 0.2);
            transform: translateY(-2px);
        }
        
        .emoji {
            font-size: 60px;
            margin-bottom: 20px;
        }
        
        /*  */
        @media (max-width: 768px) {
            .container {
                padding: 40px 25px;
            }
            
            .error-code {
                font-size: 90px;
            }
            
            .error-title {
                font-size: 28px;
            }
            
            .content-box {
                padding: 25px 20px;
            }
            
            .message {
                font-size: 18px;
            }
        }
        
        @media (max-width: 480px) {
            .container {
                padding: 30px 20px;
            }
            
            .error-code {
                font-size: 70px;
            }
            
            .error-title {
                font-size: 24px;
            }
            
            .home-link {
                width: 100%;
                text-align: center;
            }
        }
        
        /*  */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .container {
            animation: fadeIn 0.8s ease-out;
        }
        
        .error-code {
            animation: fadeIn 0.5s ease-out 0.2s both;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="header">
            <div class="emoji">😔</div>
            <div class="error-code">404</div>
            <h1 class="error-title">Page Not Found</h1>
        </div>
        
        <div class="content-box">
            <p class="message">
                <span class="message-highlight">"You can not always get what you want."</span> 
                It is true in life, and it is true on the web.
            </p>
            
            <p class="message">
                Sometimes, what you are looking for just is not there.
            </p>
            
            <div class="quote">
                "Not all those who wander are lost, but sometimes we just can't find what we're looking for."
            </div>
        </div>
        
        <a href="../" class="home-link">Return to Homepage</a>
    </div>
    
    <script>
        // 
        document.addEventListener('DOMContentLoaded', function() {
            // 
            const homeLink = document.querySelector('.home-link');
            
            homeLink.addEventListener('mousedown', function() {
                this.style.transform = 'translateY(1px)';
            });
            
            homeLink.addEventListener('mouseup', function() {
                this.style.transform = 'translateY(-2px)';
            });
            
            homeLink.addEventListener('mouseleave', function() {
                this.style.transform = 'translateY(0)';
            });
            
            // 404
            const errorCode = document.querySelector('.error-code');
            errorCode.addEventListener('mouseover', function() {
                this.style.transform = 'scale(1.05)';
                this.style.transition = 'transform 0.3s ease';
            });
            
            errorCode.addEventListener('mouseout', function() {
                this.style.transform = 'scale(1)';
            });
        });
    </script>
</body>
</html>