body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    /*background: linear-gradient(90deg, #182848, #4b6cb7);*/
    background-image: url(images/back.gif);
    background-position: fixed;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.box {
    height: auto;
    width: 90%;
    max-width: 550px;
    /*background: linear-gradient(145deg, #ff9966, #ff5e62);*/
    background: linear-gradient(90deg, #182848, #4b6cb7);
    margin: auto;
    border: 2px solid #fff;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 4px 8px rgba(255, 228, 228, 0.329);
    transition: transform 0.3s ease-in-out;
}

.box:hover {
    transform: scale(1.05);
}

h1, h3 {
    color: #fff;
    font-size: 24px;
    background: linear-gradient(145deg, #ff999a, #ffd8d8 );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    border-radius: 10px;
}

button {
    background: linear-gradient(90deg, #fc466b, #3f5efb);
    color: #fff;
    border: none;
    font-weight: bold;
    height: 50px;
    width: 150px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 16px;
    transition: transform 0.3s ease, z-index 0.3s ease;
    z-index: 1;
}

button:hover {
    background: linear-gradient(90deg, #8a2387, #e94057, #f27121);
    transform: scale(1.1);
}

.hidden {
    display: none;
}

#surprise-container {
    margin-top: 20px;
    background: linear-gradient(90deg, #1d4350, #a43931);
    padding: 15px;
    border-radius: 10px;
    color: #fff;
}

#surprise-message {
    font-size: 18px;
    color: #fff;
    font-weight: bold;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.6);
}

#surprise-image {
    width: 100%;
    max-width: 200px;
    border-radius: 10px;
    margin-top: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.footer {
    margin-top: 20px;
    font-size: 14px;
    color: #fff;
    background: linear-gradient(90deg, #4b6cb7, #182848);
    padding: 10px;
    border-radius: 10px;
    text-align: center;
}