body {
    margin: 0;
    font-family: 'Comic Sans MS', sans-serif;
    background: linear-gradient(135deg, #ff9a9e, #fad0c4);
    overflow-x: hidden;
    text-align: center;
}

h1 {
    font-size: 4rem;
    margin-top: 50px;
    color: #fff;
    text-shadow: 3px 3px #ff6f91;
    animation: bounce 1.5s infinite;
}

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

#balloons {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.balloon {
    position: absolute;
    width: 80px;
    animation: floatUp linear infinite;
}

@keyframes floatUp {
    from { transform: translateY(100vh); }
    to { transform: translateY(-150px); }
}

#present {
    margin: 40px auto 0;
    width: 150px;
    cursor: pointer;
    transition: transform 0.3s;
}

#present:hover {
    transform: scale(1.1);
}

#label {
    margin-top: 10px;
    font-size: 1.4rem;
    color: #fff;
    font-weight: bold;
    text-shadow: 2px 2px #ff6f91;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

#message {
    margin-top: 30px;
    font-size: 2rem;
    color: #fff;
    opacity: 0;
    transition: opacity 1s;
}