.companion-main { max-width: 52rem; margin: 3.5rem auto 4.5rem; }
.companion-main h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); line-height: 1.1; margin: 1rem 0 1.5rem; }
.companion-main h2 { font: 400 1.5rem/1.3 Georgia, "Times New Roman", serif; letter-spacing: -.018em; text-transform: none; }
.companion-main p { line-height: 1.65; }
.companion-main code { overflow-wrap: anywhere; }
.download-section { border-top: 1px solid var(--line); margin-top: 2.25rem; padding-top: 1.5rem; }
.download-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; padding: 0; list-style: none; }
.download-format { display: block; color: var(--muted); font-size: .875rem; }
details { margin-top: 1.5rem; }
summary { cursor: pointer; font-weight: 600; }
.companion-main a:focus-visible, summary:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
@media (max-width: 560px) { .download-list { grid-template-columns: 1fr; } .companion-main { margin-top: 2rem; } }