:root {
    --tn-bg: #1a1b26;
    --tn-bg-dark: #16161e;
    --tn-fg: #c0caf5;
    --tn-blue: #7aa2f7;
    --tn-purple: #bb9af7;
    --tn-cyan: #7dcfff;
    --tn-comment: #565f89;
}

* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
    margin: 0;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;

    background: var(--tn-bg);
    color: var(--tn-fg);
    font-family: ui-monospace, monospace;
    font-size: clamp(1rem, 0.9rem + 0.4vw, 1.125rem);
    line-height: 1.6;
}

main {
    max-width: 32rem;
    padding: 2rem 2.5rem;
    text-align: center;

    background: var(--tn-bg-dark);
    border: 1px solid var(--tn-comment);
    border-radius: 0.75rem;
    box-shadow:
        0 0 0 1px rgba(122, 162, 247, 0.1),
        0 10px 30px rgba(0, 0, 0, 0.4);
}

main:hover {
    border-color: var(--tn-blue);
}

@media (prefers-reduced-motion: no-preference) {
    main {
        transition: border-color 150ms ease;
    }
}