/* Reading collection and the National Parks chapter book. */
.reading-section{background:#fff7eb;padding:80px 5%;color:#17374b;scroll-margin-top:85px;border-top:1px solid #f0e4d2;border-bottom:1px solid #f0e4d2}.reading-inner{max-width:1240px;margin:auto}.reading-section h2{font-family:'Titan One',sans-serif;color:var(--blue,#0759d8);font-size:clamp(30px,4vw,50px);line-height:1.15;margin:12px 0 18px}.reading-eyebrow{font-size:12px;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:#546b60}.reading-intro{max-width:650px;font-size:18px;line-height:1.7;margin-bottom:30px}.reading-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(260px,3fr);gap:26px;align-items:stretch}.reading-feature{display:block;position:relative;border-radius:24px;overflow:hidden;min-height:450px;color:white;text-decoration:none;background:#1b423c}.reading-feature img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;transition:transform .3s}.reading-feature:hover img{transform:scale(1.025)}.reading-feature:after{content:'';position:absolute;inset:0;background:linear-gradient(transparent 15%,rgba(9,31,34,.92))}.reading-feature-copy{position:absolute;z-index:1;bottom:0;left:0;padding:32px;max-width:640px}.reading-badge{display:inline-block;background:#fff3be;color:#243b38;padding:7px 12px;border-radius:99px;font-size:12px;font-weight:800}.reading-feature h3{font-family:'Titan One',sans-serif;font-size:clamp(27px,3vw,40px);line-height:1.16;color:#fff;margin:14px 0}.reading-feature p{font-size:16px;line-height:1.6;margin:8px 0}.reading-read{display:inline-block;margin-top:12px;background:#fff;color:#0759d8;padding:12px 18px;border-radius:99px;font-weight:800}.reading-collection{background:#fffefa;border:1px solid #eadfcf;border-radius:24px;padding:24px}.reading-collection h3{font-family:'Titan One',sans-serif;font-size:23px;color:#0759d8;margin:0 0 10px}.reading-collection>p{font-size:14px;line-height:1.6;color:#5b6c73}.reading-chapter-tile{display:flex;gap:13px;border:2px solid #0759d8;border-radius:16px;padding:12px;text-decoration:none;color:#17374b;margin-top:20px;align-items:center}.reading-chapter-tile img{width:88px;height:88px;border-radius:10px;object-fit:cover}.reading-chapter-tile small{display:block;margin-bottom:5px;color:#55715d;font-weight:800}.reading-chapter-tile strong{font-size:16px;line-height:1.4}.reading-coming{margin-top:18px;border:1px dashed #c8cfc3;padding:15px;border-radius:14px;font-size:14px;line-height:1.6}.reading-coming strong{display:block}.reading-note{font-size:13px;color:#65706b;margin-top:17px}
.book-page{margin:0;background:#fffaf2;color:#233c46;font-family:'DM Sans',sans-serif}.book-page *{box-sizing:border-box}.book-page a{color:#0759d8}.book-top{display:flex;justify-content:space-between;gap:18px;max-width:1320px;margin:auto;padding:24px 30px;border-bottom:1px solid #e5dfd2}.book-top a{font-weight:700;text-decoration:none;font-size:14px}.book-intro{max-width:980px;margin:60px auto 42px;padding:0 28px;text-align:center}.book-kicker{font-size:12px;letter-spacing:2px;font-weight:800;color:#547462}.book-intro h1{font-family:'Titan One',sans-serif;color:#0759d8;font-size:clamp(34px,5vw,62px);line-height:1.12;margin:20px 0}.book-park{font-size:22px;font-weight:800}.book-intro>p{line-height:1.6}.book-meta{font-size:14px;color:#63756c;margin-top:20px}.book-layout{display:grid;grid-template-columns:230px minmax(0,780px);gap:42px;max-width:1120px;margin:auto;padding:0 24px 60px;align-items:start}.book-sidebar{position:sticky;top:24px;padding:20px;border:1px solid #e6decb;border-radius:18px;background:#fffdf8}.book-sidebar summary{font-weight:800;cursor:pointer}.book-sidebar nav{display:flex;flex-direction:column;gap:12px;margin:18px 0 26px}.book-sidebar a{font-size:14px;line-height:1.5;text-decoration:none}.book-sidebar a:hover{text-decoration:underline}.book-main{min-width:0}.book-tools{display:flex;justify-content:space-between;gap:12px;align-items:center;border-bottom:1px solid #e5ddcc;padding:12px 0 20px;margin-bottom:30px;font-size:13px;color:#5d7466}.book-tools>div{display:flex;gap:6px;flex-shrink:0}.book-page button{font:inherit;cursor:pointer;border:1px solid #ccd8c8;background:#fff;border-radius:10px;padding:10px 13px;color:#0759d8;font-weight:800;min-height:44px}.book-page button:hover{background:#edf5ed}.book-page button:disabled{opacity:.45;cursor:default}.book-page :focus-visible,.reading-section :focus-visible{outline:3px solid #d37d16;outline-offset:5px}.book-prose{font-size:var(--reading-size,20px);line-height:1.85}.book-prose h2{font-family:'Titan One',sans-serif;font-size:clamp(25px,3vw,32px);line-height:1.3;color:#0759d8;margin:52px 0 24px;scroll-margin-top:28px}.book-prose h2:first-child{margin-top:0}.book-prose p{margin:0 0 1.1em}.book-prose li{margin-bottom:12px}.book-prose figure{margin:25px 0 34px}.book-prose figure img{display:block;width:100%;height:auto;border-radius:18px}.book-prose figcaption{font-size:13px;line-height:1.6;color:#607268;margin-top:11px}.book-prose figcaption span{display:block;font-size:11px;text-transform:uppercase;letter-spacing:1px;margin-top:5px}.book-prose hr{border:0;border-top:1px solid #e2dccc;margin:46px 0}.book-end{padding:26px;background:#eaf2e5;border-radius:20px;margin-top:36px;line-height:1.7}.book-end h2{font-family:'Titan One',sans-serif;color:#0759d8;font-size:25px}.book-end>a{display:block;margin-top:18px;font-weight:800}.book-sources{margin-top:30px;font-size:14px;line-height:1.7}.book-sources summary{cursor:pointer;font-weight:800}.book-sources li{margin:10px 0}.book-footer{text-align:center;border-top:1px solid #e2dccc;padding:30px;font-size:14px;line-height:1.7}.book-footer a{display:block;margin-top:8px}
@media(max-width:900px){.book-layout{grid-template-columns:1fr;max-width:790px;gap:24px}.book-sidebar{position:static}.book-sidebar nav{display:grid;grid-template-columns:1fr 1fr}.book-intro{margin-top:40px}.reading-grid{grid-template-columns:minmax(0,6fr) minmax(230px,4fr)}.reading-feature-copy{padding:24px}}
@media(max-width:600px){.reading-section{padding:50px 20px}.reading-grid{grid-template-columns:1fr}.reading-feature{min-height:440px}.reading-collection{padding:20px}.book-top{padding:18px;flex-wrap:wrap}.book-top a{font-size:12px}.book-layout{padding:0 20px 40px}.book-intro{padding:0 20px;margin:32px auto}.book-intro h1 br{display:none}.book-park{font-size:19px}.book-prose{font-size:var(--reading-size,20px);line-height:1.8}.book-sidebar nav{grid-template-columns:1fr}.book-tools{flex-wrap:wrap}.book-tools>div{flex-wrap:wrap}.book-end{padding:20px}.book-prose figure{margin-left:0;margin-right:0}}
@media(prefers-reduced-motion:reduce){.reading-feature img{transition:none}}

.book-page .book-footer{display:block;background:#f1f0e4;color:#233c46}.book-sidebar a{display:block}.book-page [hidden]{display:none!important}

html.reading-root{scroll-behavior:auto}.book-sidebar{max-height:calc(100vh - 48px);overflow:auto}.reading-collection{min-width:0}.reading-chapter-tile{overflow-wrap:anywhere}

.book-chapter-nav{display:flex;flex-wrap:wrap;gap:12px 25px;margin-top:20px}.book-chapter-nav a{font-weight:800;font-size:15px;text-decoration:underline;text-underline-offset:4px}.reading-collection-list{max-height:390px;overflow-y:auto;overscroll-behavior:contain;padding:3px}.reading-chapter-tile[aria-current="true"]{background:#eef4ff}.reading-chapter-tile:not([aria-current="true"]){border-color:#e2e1d6}.reading-collection-list:focus-visible{outline:3px solid #0759d8;outline-offset:3px}

/* Reading collection selector and unpublished collection state. */
.reading-collection-picker{margin:0 0 25px;max-width:540px}.reading-collection-picker label{display:block;font-size:16px;font-weight:800;margin-bottom:8px}.reading-collection-picker select{font:inherit;font-size:17px;width:100%;padding:13px 16px;border:2px solid #0759d8;border-radius:12px;background:#fffefa;color:#17374b}.reading-collection-picker select:focus-visible{outline:3px solid #eabf41;outline-offset:3px}.reading-collection-picker p{font-size:14px;color:#5b6c73;margin:9px 0 0}.reading-empty{border-radius:24px;min-height:350px;padding:40px;background:#edf3e6;border:1px solid #cfddc4;display:flex;flex-direction:column;justify-content:center}.reading-empty h3{font-family:'Titan One',sans-serif;font-size:clamp(27px,3vw,40px);color:#0759d8;margin:20px 0 12px}.reading-empty p{font-size:17px;line-height:1.7;max-width:520px}.reading-empty .reading-badge{align-self:flex-start}.reading-section [hidden]{display:none!important}