* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', sans-serif;
        }

        body {
            background-color: #f8f9fa;
            color: #333;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            text-align: center;
            padding: 20px;
        }

        .error-container {
            background: #fff;
            padding: 60px 40px;
            border-radius: 16px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.05);
            max-width: 500px;
            width: 100%;
            border: 1px solid #eee;
        }

        .error-icon {
            font-size: 80px;
            color: #d9534f;
            margin-bottom: 20px;
            animation: float 3s ease-in-out infinite;
        }

        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-15px); }
            100% { transform: translateY(0px); }
        }

        .error-container h1 {
            font-size: 80px;
            font-weight: 800;
            color: #111;
            line-height: 1;
            margin-bottom: 10px;
        }

        .error-container h2 {
            font-size: 24px;
            font-weight: 600;
            color: #333;
            margin-bottom: 15px;
        }

        .error-container p {
            color: #6c757d;
            font-size: 16px;
            margin-bottom: 30px;
            line-height: 1.6;
        }

        .btn-home {
            background: #27ae60;
            color: #fff;
            text-decoration: none;
            padding: 14px 30px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all 0.3s ease;
        }

        .btn-home:hover {
            background: #219653;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(39, 174, 96, 0.3);
        }

        @media (max-width: 480px) {
            .error-container { padding: 40px 20px; }
            .error-container h1 { font-size: 60px; }
            .error-container h2 { font-size: 20px; }
        }