.two-col{display:grid;grid-template-columns:2fr 1fr;gap:28px;max-width:860px;margin:1.5em auto;align-items:start}.two-col article,.two-col aside{text-align:left}.two-col aside{background-color:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;padding:4px 20px 16px}.two-col aside h3{margin-top:.8em}@media(max-width:640px){.two-col{grid-template-columns:1fr}}