body {
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    height: 100%;
    font-family: Arial, sans-serif;
}

#wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 1;
    position: relative;
    width: 100%;
}

#particle {
    width: 60%;
    height: 100%;
    vertical-align: bottom;
}

.footer {
    background-color: #333;
    color: white;
    padding: 10px 20px;
    position: relative;
    z-index: 1;
    width: 100%;
    font-size: 0.8em;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
}

.footer .center-text {
    text-align: center;
    flex: 1;
}

.footer .right-text {
    text-align: right;
}

.footer .right-text a {
    color: inherit;
    text-decoration: none;
}

.footer .right-text a:hover {
    text-decoration: underline;
}