@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Poppins', sans-serif;
            overflow-x: hidden;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        
        .neon-text {
            text-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 30px #e60073, 0 0 40px #e60073;
        }
        
        .rainbow-bg {
            background: linear-gradient(90deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #ffeaa7, #ff6b6b);
            background-size: 200% 100%;
            animation: rainbow 5s ease infinite;
        }
        
        @keyframes rainbow {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }
        
        .bounce-in {
            animation: bounceIn 0.6s ease-out;
        }
        
        @keyframes bounceIn {
            0% { transform: scale(0.3); opacity: 0; }
            50% { transform: scale(1.05); }
            70% { transform: scale(0.9); }
            100% { transform: scale(1); opacity: 1; }
        }
        
        .wiggle {
            animation: wiggle 2s ease-in-out infinite;
        }
        
        @keyframes wiggle {
            0%, 100% { transform: rotate(-3deg); }
            50% { transform: rotate(3deg); }
        }
        
        .sparkle {
            animation: sparkle 1.5s ease-in-out infinite;
        }
        
        @keyframes sparkle {
            0%, 100% { opacity: 0; transform: scale(0); }
            50% { opacity: 1; transform: scale(1); }
        }
        
        .floating {
            animation: floating 3s ease-in-out infinite;
        }
        
        @keyframes floating {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
        }
        
        .rotate-slow {
            animation: rotateSlow 20s linear infinite;
        }
        
        @keyframes rotateSlow {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }
        
        .card-3d {
            transition: all 0.3s ease;
            transform-style: preserve-3d;
        }
        
        .card-3d:hover {
            transform: rotateY(10deg) rotateX(-10deg) scale(1.05);
        }
        
        .popup {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.7);
            z-index: 9999;
            backdrop-filter: blur(5px);
        }
        
        .popup.active {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .popup-content {
            background: white;
            border-radius: 30px;
            max-width: 600px;
            max-height: 80vh;
            overflow-y: auto;
            animation: popIn 0.3s ease;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
        }
        
        @keyframes popIn {
            from { transform: scale(0.8); opacity: 0; }
            to { transform: scale(1); opacity: 1; }
        }
        
        .gradient-button {
            background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
            transition: all 0.3s ease;
        }
        
        .gradient-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }
        
        .text-gradient {
            background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .nav-item {
            position: relative;
            overflow: hidden;
        }
        
        .nav-item::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: -100%;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, #ff6b6b, #4ecdc4);
            transition: left 0.3s ease;
        }
        
        .nav-item:hover::before {
            left: 0;
        }
        
        .success-toast {
            position: fixed;
            top: 20px;
            right: -400px;
            background: linear-gradient(45deg, #56ab2f, #a8e063);
            color: white;
            padding: 15px 25px;
            border-radius: 50px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            transition: right 0.3s ease;
            z-index: 10000;
        }
        
        .success-toast.show {
            right: 20px;
        }