404.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
    <title>Page Not Found</title>
    <link href="https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700;900&display=swap" rel="stylesheet">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">

    <style>
        /* --- RESET & CORE STYLES --- */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Poppins', sans-serif;
            -webkit-tap-highlight-color: transparent; 
        }

        body {
            min-height: 100vh;
            min-height: -webkit-fill-available;
            display: flex;
            justify-content: center;
            align-items: center;
            background-color: #0f0f1a;
            overflow: hidden;
            position: relative;
            touch-action: none; 
        }

        /* --- AURORA BACKGROUND --- */
        body::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, #4F46E5 0%, #7C3AED 30%, #EC4899 60%, #0f0f1a 80%);
            background-size: 200% 200%;
            animation: auroraMove 15s ease infinite alternate;
            opacity: 0.5;
            z-index: -1;
            filter: blur(80px);
        }

        @keyframes auroraMove {
            0% { transform: translate(0, 0) rotate(0deg); }
            50% { transform: translate(-10%, 5%) rotate(10deg); }
            100% { transform: translate(5%, -10%) rotate(-5deg); }
        }

        /* --- CARD STYLING --- */
        .login-card-container {
            perspective: 1500px;
            width: 100%;
            display: flex;
            justify-content: center;
            padding: 20px;
        }

        .login-card {
            width: 100%;
            max-width: 420px;
            padding: 60px 30px;
            border-radius: 40px; 
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(25px);
            -webkit-backdrop-filter: blur(25px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.05),
                        0 20px 40px rgba(0, 0, 0, 0.3);
            color: #fff;
            text-align: center;
            transition: transform 0.1s ease-out;
            transform-style: preserve-3d;
            will-change: transform;
            position: relative;
        }

        /* --- 404 SPECIFIC STYLES --- */
        .error-code {
            font-size: 100px;
            font-weight: 900;
            line-height: 1;
            margin-bottom: 10px;
            background: linear-gradient(135deg, #4F46E5, #EC4899);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: float 4s ease-in-out infinite;
            text-shadow: 0 10px 30px rgba(124, 58, 237, 0.3);
        }

        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }

        .login-card h2 {
            font-size: 24px;
            margin-bottom: 15px;
            font-weight: 600;
        }

        .login-card p.subtitle {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 40px;
            line-height: 1.6;
        }
        
        /* New class for the countdown text */
        .redirect-text {
            display: block;
            margin-top: 15px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* --- BUTTON --- */
        .home-btn {
            display: inline-block;
            text-decoration: none;
            width: 100%;
            padding: 16px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
            transition: all 0.3s ease;
        }

        .home-btn:hover {
            background: linear-gradient(135deg, #4F46E5, #EC4899);
            border-color: transparent;
            transform: translateY(-2px);
            box-shadow: 0 15px 30px rgba(124, 58, 237, 0.5);
        }

        .home-btn i {
            margin-right: 8px;
        }

        @media (max-width: 480px) {
            .error-code { font-size: 80px; }
            .login-card { padding: 40px 20px; }
        }
    </style>
</head>
<body>

    <div class="login-card-container">
        <div class="login-card" id="tiltCard">
            
            <div class="error-code">404</div>
            
            <h2>Oops! Page Not Found</h2>
            <p class="subtitle">
                The page you are looking for might have been removed or is temporarily unavailable.
                <span class="redirect-text">Redirecting to login in <span id="countdown">5</span> seconds...</span>
            </p>

            <a href="login.html" class="home-btn">
                <i class="fa-solid fa-house"></i> Go to Homepage Now
            </a>

        </div>
    </div>

    <script>
        /* --- LOGIC --- */

        // 1. AUTO REDIRECT LOGIC
        let timeLeft = 5;
        const countdownEl = document.getElementById('countdown');

        const timer = setInterval(() => {
            timeLeft--;
            if (countdownEl) countdownEl.innerText = timeLeft;

            if (timeLeft <= 0) {
                clearInterval(timer);
                window.location.href = "login.html";
            }
        }, 1000);

        // 2. TILT EFFECT
        const card = document.getElementById('tiltCard');
        const container = document.querySelector('.login-card-container');

        if (window.matchMedia("(pointer: fine)").matches) {
            container.addEventListener('mousemove', (e) => {
                const rect = container.getBoundingClientRect();
                const x = e.clientX - rect.left - rect.width / 2;
                const y = e.clientY - rect.top - rect.height / 2;
                
                const multiple = 15; 
                const rotateX = (y / rect.height) * -multiple;
                const rotateY = (x / rect.width) * multiple;

                card.style.transform = `rotateX(${rotateX}deg) rotateY(${rotateY}deg)`;
            });

            container.addEventListener('mouseleave', () => {
                card.style.transform = `rotateX(0deg) rotateY(0deg)`;
            });
        }
    </script>
</body>
</html>