:root {
    --bs-length: 1px;
}

body {
    font-family: 'Lucida', monospace;
    /* https://matthewjamestaylor.com/responsive-font-size */
    font-size: calc(18px + 0.390625vw);
    background-color: #000000;
    color: #b00000;
}

a:link, a:visited {
    color: #ff6a00;
}
a:hover {
    color: #823600;
}

div.header {
    margin-top: 1%;
    width:100%;
    display: flex;
    justify-content: center;
    font-size: calc(1.2vw);
}

.tab {
    display: flex;
    flex-direction: column;
    padding-left: 10%;
    padding-right: 10%;
    display: none;
}

.active {
    display: block;
}

.menu {
    display: flex;
    flex-direction: row;
    justify-content: center;
    column-gap: 5%;
    padding-left: 10%;
    padding-right: 10%;
}

pre {
    margin: 0;
}

.code {
    font-family: monospace;
    padding: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
}

.row {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    width: 100%;
}

.column {
    display: flex;
    flex-direction: column;
    flex-basis: 100%;
    flex: 1;
}

.panel {
    margin-top: 10px;
    border: 1px solid #b00000;
    border-radius: 3px;
    padding: 3px;
    margin: 5px;
    box-shadow: var(--bs-length) var(--bs-length) 5px rgba(179, 0, 0, 0.9);
    font-size: calc(26px + 0.390625vw);
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
}