body {
            margin: 0;
            padding: 0;
            font-family: 'Comic Sans MS', cursive, sans-serif;
            background: linear-gradient(135deg, #ffcce6, #ffb3d9);
            height: 100vh;
            overflow: hidden;
            display: flex;
            justify-content: center;
            align-items: center;
            color: #d63384;
        }

        .container {
            text-align: center;
            position: relative;
            z-index: 10;
        }

        h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            opacity: 0;
            transform: translateY(50px);
            animation: fadeInUp 1.5s ease forwards;
            text-shadow: 2px 2px 4px rgba(255, 255, 255, 0.5);
        }

        .name {
            color: #ff69b4;
            font-weight: bold;
            display: inline-block;
            animation: bounce 1s ease infinite alternate;
        }

        .cake {
            font-size: 5rem;
            margin: 30px 0;
            opacity: 0;
            transform: scale(0.5);
            animation: popIn 1s ease 1s forwards;
            cursor: pointer;
            transition: transform 0.3s ease;
        }

        .cake:hover {
            transform: scale(1.1) rotate(5deg);
        }

        .message {
            font-size: 1.5rem;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
            opacity: 0;
            transform: translateY(30px);
            animation: fadeInUp 1s ease 2s forwards;
        }

        .cherry-blossom {
            position: absolute;
            font-size: 2rem;
            opacity: 0;
            animation: float 8s linear infinite;
        }

        .btn {
            margin-top: 30px;
            padding: 12px 30px;
            background-color: #ff69b4;
            color: white;
            border: none;
            border-radius: 50px;
            font-size: 1.2rem;
            cursor: pointer;
            opacity: 0;
            transform: translateY(30px);
            animation: fadeInUp 1s ease 3s forwards;
            transition: all 0.3s ease;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }

        .btn:hover {
            background-color: #d63384;
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
        }

        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes popIn {
            0% {
                transform: scale(0.5);
                opacity: 0;
            }
            70% {
                transform: scale(1.1);
            }
            100% {
                transform: scale(1);
                opacity: 1;
            }
        }

        @keyframes bounce {
            to {
                transform: translateY(-10px);
            }
        }

        @keyframes float {
            0% {
                transform: translateY(0) rotate(0deg);
                opacity: 0;
            }
            10% {
                opacity: 0.8;
            }
            90% {
                opacity: 0.8;
            }
            100% {
                transform: translateY(100vh) rotate(360deg);
                opacity: 0;
            }
        }

        .confetti {
            position: absolute;
            width: 10px;
            height: 10px;
            background-color: #ff69b4;
            opacity: 1;
            border-radius: 50%;
        }

        @keyframes confetti-fall {
            to {
                transform: translateY(100vh) rotate(360deg);
                opacity: 0;
            }
        }