.reading-supplement { padding: 0 0 26px; margin-bottom: 12px; min-width: 0; }
.reading-supplement h2 { font-size: 19px; line-height: 1.6; margin: 0 0 14px; color: #24452e; }
.reading-supplement h2:not(:first-child) { margin-top: 28px; }
.reading-supplement ul { padding-left: 20px; margin: 0; }
.reading-supplement li { margin: 8px 0; line-height: 1.8; }
.reading-supplement a { color: #247242; text-underline-offset: 4px; overflow-wrap: anywhere; }
.reading-supplement a:hover { color: #15552f; text-decoration: underline; }
.reading-supplement a:focus-visible, .reading-supplement summary:focus-visible { outline: 2px solid #247242; outline-offset: 3px; }
.reading-chapter-directory, .reading-topic-directory { margin-top: 8px; }
.reading-chapter-directory > summary, .reading-topic-directory > summary { min-height: 44px; padding: 10px 0; cursor: pointer; font-size: 14px; line-height: 1.7; color: #375b43; }
.reading-chapters { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0 24px; align-items: start; }
.reading-chapters details { min-width: 0; border-bottom: 1px solid #e5ede0; }
.reading-chapters summary { padding: 12px 0; cursor: pointer; font-size: 15px; line-height: 1.7; overflow-wrap: anywhere; }
.reading-chapters summary span { color: #617569; font-size: 13px; margin-left: 12px; white-space: nowrap; }
.reading-chapter-sections { display: grid; gap: 4px; padding: 0 0 12px 18px; }
.reading-chapter-sections a { display: flex; align-items: center; justify-content: space-between; min-height: 44px; gap: 12px; font-size: 14px; line-height: 1.7; }
.reading-chapter-sections small { white-space: nowrap; color: #617569; font-size: 12px; }
@media (max-width: 699px) { .reading-chapters { grid-template-columns: minmax(0,1fr); } }