:root { --encre: #1b2733; --trait: #d6dde4; --accent: #0b6b78; }
* { box-sizing: border-box; }
body { margin: 0; font: 17px/1.65 system-ui, -apple-system, "Segoe UI", sans-serif;
       color: var(--encre); background: #fbfcfd; }
header { border-bottom: 1px solid var(--trait); padding: 1.25rem 1.5rem; }
.marque { margin: 0; font-weight: 600; letter-spacing: .02em; color: var(--accent); }
main { max-width: 42rem; margin: 0 auto; padding: 3rem 1.5rem; }
h1 { font-size: 1.9rem; line-height: 1.25; margin: 0 0 1.25rem; }
p { margin: 0 0 1rem; }
.version { color: #5b6b7a; font-size: .92rem; border-top: 1px solid var(--trait);
           padding-top: 1rem; margin-top: 2rem; }
a { color: var(--accent); }