body {
    background-color: #1e1e1e; /* dark gothic background */
    color: #ffffff; /* white text */
    text-align: center;
    font-family: "Times New Roman", Times, serif; /* gothic font */
    padding: 50px;
    overflow: hidden;
    position: relative;
    z-index: 1;
    }
    
    .background-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
    }
    
    .love-text {
    position: absolute;
    font-size: 2em;
    color: rgba(255, 255, 255, 0.2); /* semi-transparent white */
    animation: move 15s linear infinite;
    }
    
    .love-text:nth-child(1) {
    top: 10%;
    left: 10%;
    }
    
    .love-text:nth-child(2) {
    top: 30%;
    left: 30%;
    }
    
    .love-text:nth-child(3) {
    top: 50%;
    left: 50%;
    }
    
    .love-text:nth-child(4) {
    top: 70%;
    left: 70%;
    }
    
    @keyframes move {
    0% {
    transform: translateY(0) translateX(0);
    }
    50% {
    transform: translateY(-20px) translateX(20px);
    }
    100% {
    transform: translateY(0) translateX(0);
    }
    
    .container {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
    height: 100vh;
    overflow-y: auto;
    z-index: 10; /* ensure container is above background elements */
    }
    
    h1 {
    font-size: 2em;
    margin-bottom: 20px;
    animation: fadeIn 2s ease-in-out;
    white-space: nowrap;
    }
    
    .birthday-wish {
    font-size: 1.2em;
    line-height: 1.6;
    margin-bottom: 20px;
    animation: fadeIn 3s ease-in-out;
    text-align: justify;
    }
    
    button {
    padding: 10px 20px;
    font-size: 1em;
    background-color: #ff1493;
    color: #ffffff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
    animation: fadeIn 4s ease-in-out;
    }
    
    button:hover {
    background-color: #c71585;
    }
    
    @keyframes fadeIn {
    from {
    opacity: 0;
    }
    to {
    opacity: 1;
    }
    }
    
    .credits {
    font-size: 0.8em;
    margin-top: 50px;
    color: #808080;
    }