body {
    font-family: Arial, sans-serif;
    background-color:  #90b188;
    margin: 0;
    padding: 16px;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    box-sizing: border-box;
}
header {
    text-align: center;
    color: #ffffff;
    text-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
}
.container {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    margin: 16px auto;
}
aside {
    margin-top: 32px !important;
    padding-top: 3px !important;
}
p {
    color: #333;
    line-height: 1.6;
}
a, a:link, a:focus, a:active, a:hover, a:visited {
    color: #178703;
}
.highlight {
    font-weight: bold;
    color: #000;
}
.button {
    display: inline-block;
    padding: 10px 20px;
    background-color: #178703;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}
a.button:link, a.button:focus, a.button:active, a.button:hover, a.button:visited {
    color: #fff;
}
aside p {
    line-height: 1;
}
#qrcode {
    width: 30%;
    max-width: 500px;
    float: right;
    margin-left: 16px;
}
.small {
    font-size: 0.8em;
}