body {
            margin: 0;
            padding: 0;
            font-family: 'Comic Sans MS', cursive, sans-serif;
            background-color: #6179ff;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            background-image: url('https://i.pinimg.com/originals/3e/0c/3e/3e0c3e5f5a5d5b5e5f5a5d5b5e5f5a5d.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }

        .flip-card {
            background-color: transparent;
            width: 500px;
            height: 600px;
            perspective: 1000px;
            margin: 20px 0;
        }

        .flip-card-inner {
            position: relative;
            width: 100%;
            height: 100%;
            text-align: center;
            transition: transform 0.8s;
            transform-style: preserve-3d;
            box-shadow: 0 10px 25px rgba(0,0,0,0.3);
            border-radius: 15px;
        }

        .flip-card:hover .flip-card-inner {
            transform: rotateY(180deg);
        }

        .flip-card-front, .flip-card-back {
            position: absolute;
            width: 100%;
            height: 100%;
            backface-visibility: hidden;
            border-radius: 15px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 30px;
            box-sizing: border-box;
        }

        .flip-card-front {
            background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 100%);
            color: #d32f2f;
            font-size: 2rem;
            font-weight: bold;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
            border: 5px solid #ffeb3b;
        }

        .flip-card-back {
            background: linear-gradient(135deg, #a1c4fd 0%, #c2e9fb 100%);
            color: #333;
            font-size: 1.3rem;
            line-height: 1.8;
            transform: rotateY(180deg);
            box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.1);
            border: 5px solid #4caf50;
        }

        .profile-image {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            object-fit: cover;
            border: 5px solid white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
            margin-bottom: 20px;
        }

        .social-icons {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-top: 20px;
        }

        .social-icons a {
            color: #333;
            font-size: 24px;
            transition: all 0.3s;
        }

        .social-icons a:hover {
            transform: scale(1.2);
            color: #e91e63;
        }

        .birthday-text {
            font-size: 1.8rem;
            font-weight: bold;
            color: #e91e63;
            text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
            margin: 15px 0;
        }

        .editor {
            margin-top: 30px;
            text-align: center;
            background: rgba(255,255,255,0.9);
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            width: 500px;
        }

        .editor h3 {
            color: #e91e63;
            margin-bottom: 15px;
        }

        .editor input, .editor textarea {
            width: 90%;
            margin: 10px 0;
            padding: 12px;
            font-size: 1rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            transition: border 0.3s;
        }

        .editor input:focus, .editor textarea:focus {
            border-color: #e91e63;
            outline: none;
        }

        .editor button {
            margin: 10px 5px;
            padding: 12px 25px;
            font-size: 1rem;
            color: white;
            background-color: #e91e63;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 3px 6px rgba(0,0,0,0.1);
        }

        .editor button:hover {
            background-color: #c2185b;
            transform: translateY(-2px);
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }

        .editor button:active {
            transform: translateY(0);
        }

        .form-group {
            margin-bottom: 15px;
            text-align: left;
            padding: 0 10px;
        }

        .form-group label {
            display: block;
            margin-bottom: 5px;
            color: #333;
            font-weight: bold;
        }

        .confetti {
            position: absolute;
            width: 10px;
            height: 10px;
            background-color: #f00;
            border-radius: 50%;
            animation: fall 5s linear infinite;
        }

        @keyframes fall {
            0% {
                transform: translateY(-100vh) rotate(0deg);
                opacity: 1;
            }
            100% {
                transform: translateY(100vh) rotate(360deg);
                opacity: 0;
            }
        }