:root {
    color-scheme: light dark;

    --font-sans: Avenir, Montserrat, Corbel, 'URW Gothic', source-sans-pro, sans-serif;
    --font-mono: ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, 'DejaVu Sans Mono', monospace;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: clamp(1.25rem, 1vw + 1rem, 1.5rem);
    --text-2xl: clamp(1.5rem, 2vw + 1rem, 2.25rem);
    --text-3xl: clamp(2rem, 4vw + 1rem, 4rem);

    --page-bg: #f8fafc;
    --page-text: #111827;
    --side-left-bg: #c7d2fe;
    --side-right-bg: #d9f99d;
    --brand-color: #4338ca;
    --code-bg: #1e1b4b;
    --code-text: #bef264;
}

@media (prefers-color-scheme: dark) {
    :root {
        --page-bg: #0f1020;
        --page-text: #f8fafc;
        --side-left-bg: #312e81;
        --side-right-bg: #365314;
        --brand-color: #a5b4fc;
        --code-bg: #ecfccb;
        --code-text: #1e1b4b;
    }
}

html {
    font-size: 100%;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.5;
    font-weight: 400;
    color: var(--page-text);
    background: var(--page-bg);
}

.page {
    min-block-size: 100svh;
    display: grid;
    grid-template-columns: minmax(1rem, 1fr) minmax(0, 72rem) minmax(1rem, 1fr);
    grid-template-rows: auto 1fr auto;
    position: relative;
}

.page > header,
.page > main,
.page > footer {
    grid-column: 2;
    z-index: 1;
}

.page::before,
.page::after {
    content: "";
    grid-row: 1 / -1;
}

.page::before {
    grid-column: 1;
    background: var(--side-left-bg);
}

.page::after {
    grid-column: 3;
    background: var(--side-right-bg);
}

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

.brand {
    margin: 2rem 0 0 0;
    font-style: italic;
    font-weight: 800;
    font-size: 8rem;
    color: var(--brand-color);
}

.tagline {
    font-size: 2rem;
    font-style: italic;
    margin-top: -3.25rem;
    margin-left: 5.75rem;
}

header {
    flex-direction: column;
    align-items: center;
}

main section {
    margin: 2.0rem 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

main section h1 {
    margin-bottom: 0.875rem;
    font-size: var(--text-xl);
    font-weight: 400;
}

main code {
    font-family: var(--font-mono);
    font-weight: normal;
    font-size: var(--text-lg);
    color: var(--code-text);
    background-color: var(--code-bg);
    padding: .5rem;
    border-radius: .375rem;
}