body {
    margin: 0;
    min-height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
    flex-direction:column;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    background: linear-gradient(to bottom right, #ffb6c1, #fff0f5);
    color: #333;
    text-align: center;
    overflow-x: hidden;
}
h1, h2 {
    margin: 30px 10px;
}
button {
    background-color: #ff69b4;
    color: white;
    border: none;
    padding: 15px 25px;
    border-radius: 30px;
    font-size: 1.2em;
    cursor: pointer;
    transition: transform 0.2s;
}
button:hover {
    transform: scale(1.1);
    background-color: #ff85c1;
}
.section {
    display: none;
    padding: 50px 20px;
    animation: fadeIn 1s ease;
}
.visible {
    display: block;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.hearts {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}
.heart {
    position: absolute;
    color: #ff69b4;
    font-size: 20px;
    animation: float 5s infinite;
}
@keyframes float {
    0% { transform: translateY(100vh) scale(0.8); opacity: 0.7; }
    100% { transform: translateY(-10vh) scale(1.2); opacity: 0; }
}
input {
    padding: 10px;
    border-radius: 10px;
    border: 1px solid #ff85c1;
    font-size: 1em;
}
audio {
    display: none;
}