:root {
    --bg: #fff;
    --header-bg: linear-gradient(270deg, #99dbaf, #baf3cd);
    --window-bg: #ffffff;
    --window-border: #6b9478;
    --window-shadow: #c7c7c7;
    --tabs-bg: #f1f1f1;
    --tabs-bg-2: #dadada;
    --tabs-border: #cfcfcf;
    --tabs-color: #757575;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1e1e20;
        --window-shadow: #2e2b31;
    }
}

* {
    margin: 0;
    padding: 0;
}

body {
    width: 100%;
    min-height: 100vh;
    background-color: var(--bg);
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, Helvetica, sans-serif;
}

marquee {
    background: black;
    color: yellow;
}

marquee a {
    color: yellow;
}

window {
    background-color: var(--window-bg);
    border: 1px solid var(--window-border);
    box-shadow: 0 0 8px var(--window-shadow);
}

header {
    background: var(--header-bg);
    border-bottom: 1px solid var(--window-border);
    padding: 8px;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    font-size: 18px;
}

tabs {
    background: var(--tabs-bg);
    border-bottom: 1px solid var(--tabs-border);
    display: flex;
    flex-direction: row;
    font-size: 14px;
}

tabs>a {
    background-color: var(--tabs-bg);
    color: var(--tabs-color);
    padding: 2px 4px;
    text-decoration: none;
}

tabs>a:hover {
    background-color: var(--tabs-bg-2);
}

main {
    padding: 8px;
}