:root {
    color-scheme: light;
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    color: #172b40;
    background: #f4f7fa;
    line-height: 1.6;
}

* { box-sizing: border-box; }
body { margin: 0; }
.container { width: min(100% - 2rem, 64rem); margin-inline: auto; }
header { padding-block: 1.5rem; border-bottom: 1px solid #cdd8e2; }
.brand { font-size: 1.4rem; font-weight: 750; text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; margin-top: .75rem; }
a { color: #145ca3; text-underline-offset: .2em; }
a:hover { color: #0b3864; }
a:focus-visible { outline: 3px solid #a65b00; outline-offset: 4px; border-radius: 2px; }
main { padding-block: 3rem; min-height: 48vh; }
h1 { font-size: clamp(1.7rem, 5vw, 2.7rem); line-height: 1.2; overflow-wrap: anywhere; }
p { max-width: 65ch; }
.stage, footer { color: #4b5e70; }
.stage { font-weight: 650; }
footer { padding-block: 1rem; border-top: 1px solid #cdd8e2; font-size: .9rem; }