/* Layout adapted from Writebook. Cover assets: Copyright 37signals, LLC, MIT. */
.bookbuilder-workspace { background: #fff; color: #101010; font-family: Arial, Helvetica, sans-serif; }
.bookbuilder { --ink: var(--folio-ink); --blue: var(--folio-blue); --line: var(--folio-line); width: 100%; font-family: Arial, Helvetica, sans-serif; font-size: 16px; }
.bookbuilder h1, .bookbuilder h2, .bookbuilder h3, .bookbuilder h4 { font-family: inherit; color: var(--ink); letter-spacing: -.035em; font-weight: 750; }
.bookbuilder a { color: var(--blue); text-underline-offset: 3px; }
.bookbuilder .ui-icon { display: inline-block; flex-shrink: 0; width: 24px; height: 24px; vertical-align: middle; background: currentColor; mask: var(--icon-url) center / contain no-repeat; }
.bookbuilder .round-button { display: inline-flex; justify-content: center; align-items: center; width: 44px; height: 44px; padding: 0; border-radius: 50%; font-size: 25px; flex-shrink: 0; text-decoration: none; }
.book-navbar { display: grid; grid-template-columns: 1fr minmax(0, 4fr) 1fr; align-items: center; padding: 16px 24px; gap: 16px; min-height: 76px; }
.book-nav-start, .book-nav-end { display: flex; align-items: center; gap: 10px; }
.book-nav-end { justify-content: flex-end; }
.book-breadcrumb { display: flex; align-items: center; justify-content: center; gap: 12px; font-size: 15px; min-width: 0; }
.book-breadcrumb strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.book-breadcrumb a { display: inline-flex; align-items: center; gap: 10px; }
.book-breadcrumb > a:first-child { color: var(--ink); text-decoration: none; }
.library-search { display: flex; gap: 12px; align-items: center; max-width: 360px; margin: 12px auto 32px; padding: 0 16px; }
.bookshelf { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 40px 32px; padding: 12px clamp(24px, 4vw, 80px) 48px; }
.shelf-book { text-align: center; min-width: 0; }
.shelf-book h2 { font-size: 18px; line-height: 1.2; margin: 12px 0 3px; }
.shelf-book h2 a { color: var(--ink); text-decoration: none; }
.shelf-book p { margin: 0; font-size: 16px; line-height: 1.3; }
.shelf-book small { color: #65655f; font-size: 12px; }
.shelf-cover-link { display: block; text-decoration: none; }
.book-cover, .new-book-cover { aspect-ratio: 5 / 8; width: 100%; border: 1px solid var(--line); border-radius: 7px; position: relative; overflow: hidden; background-size: cover; background-position: center; }
.bookbuilder .book-cover { max-width: none; max-height: none; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 10%; color: white; }
.book-cover-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.book-cover-title { color: inherit; font-family: Georgia, serif; font-size: clamp(24px, 2.9vw, 52px); font-weight: 700; text-align: center; line-height: 1.1; overflow-wrap: anywhere; display: -webkit-box; -webkit-line-clamp: 6; -webkit-box-orient: vertical; overflow: hidden; }
.book-cover-emblem { margin-top: 20%; }
.book-cover-emblem .folio-icon { width: 46px; height: 46px; }
.book-cover-author { position: absolute; bottom: 7%; left: 10%; right: 10%; text-align: center; font-family: Georgia, serif; font-size: 15px; }
.theme-black { background-color: #17181c; background-image: url("covers/cover-black.af9e3631b8d4.png"); }
.theme-blue { background-color: #559ae7; background-image: url("covers/cover-blue.b00686b9d923.png"); }
.theme-green { background-color: #72ba80; background-image: url("covers/cover-green.b32af7d3920e.png"); }
.theme-magenta { background-color: #b75787; background-image: url("covers/cover-magenta.5366fcb650a7.png"); }
.theme-orange { background-color: #dc803f; background-image: url("covers/cover-orange.617218217d18.png"); }
.theme-violet { background-color: #7742d7; background-image: url("covers/cover-violet.1a6ef2030617.png"); }
.theme-white, .bookbuilder .book-cover.theme-white { background-color: white; background-image: url("covers/cover-white.b4fa569daf45.png"); color: black; }
.new-book-cover { display: flex; align-items: center; justify-content: center; color: white; text-decoration: none; }
.add-disc { display: inline-flex; width: 62px; height: 62px; align-items: center; justify-content: center; border-radius: 50%; background: #68ac3d; color: white; font-size: 48px; font-weight: 400; }
.shelf-cover-link:hover .book-cover, .new-book-cover:hover { outline: 2px solid #9bb8e3; outline-offset: 3px; }
.library-pagination { max-width: 800px; padding: 0 24px 40px; margin: auto; }
.book-layout { display: grid; grid-template-columns: minmax(210px, 26%) minmax(0, 1fr); gap: clamp(28px, 4vw, 60px); margin: 20px clamp(24px, 5vw, 90px) 60px; align-items: start; }
.book-sidebar { position: sticky; top: 24px; }
.book-access { display: flex; justify-content: center; align-items: center; gap: 16px; padding: 16px; margin-top: 16px; border-radius: 24px; background: #f2f3ed; font-size: 14px; }
.book-settings-link { display: block; text-align: center; font-size: 12px; margin-top: 16px; }
.book-heading { margin: 8px 0 24px; }
.book-heading h1 { font-size: clamp(32px, 4vw, 60px); line-height: 1.06; margin-bottom: 12px; overflow-wrap: anywhere; }
.book-heading p { font-size: clamp(18px, 2vw, 28px); margin: 0 0 4px; line-height: 1.3; }
.contents-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 28px; flex-wrap: wrap; }
.view-switch { display: flex; gap: 8px; }
.page-create-buttons { display: flex; gap: 18px; }
.bookbuilder .page-create { position: relative; display: flex; flex-direction: column; gap: 3px; align-items: center; padding: 0; border: 0; background: none; font-size: 11px; text-decoration: none; }
.page-create .folio-icon { width: 32px; height: 32px; }
.page-create b { position: absolute; right: -6px; top: -5px; width: 18px; height: 18px; border-radius: 50%; background: #68ac3d; color: white; font-size: 17px; line-height: 18px; }
.contents-search { display: flex; align-items: center; gap: 8px; max-width: 230px; }
.contents-search input { min-width: 0; font-size: 12px; }
.page-collection { display: grid; grid-template-columns: repeat(auto-fill, minmax(155px, 1fr)); gap: 28px 20px; padding: 0; margin: 0; list-style: none; }
.page-tile { min-width: 0; }
.page-preview { display: block; aspect-ratio: 2 / 3; overflow: hidden; padding: 18px; border: 1px solid var(--line); border-radius: 3px; color: var(--ink) !important; text-decoration: none; font-size: 11px; line-height: 1.45; }
.page-preview h2 { font-size: 20px; margin-bottom: 14px; line-height: 1.1; }
.page-preview:hover { border-color: var(--blue); outline: 1px solid var(--blue); }
.page-tile-section .page-preview { background: #080808; color: white !important; display: flex; align-items: center; justify-content: center; text-align: center; }
.page-tile-section .page-preview h2 { color: inherit; }
.page-caption { position: relative; text-align: center; margin-top: 8px; font-size: 14px; }
.page-caption-title { color: var(--ink) !important; text-decoration: none; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-weight: 700; }
.page-caption small { display: block; font-size: 12px; }
.page-edit { display: inline-block; padding: 4px; color: #666 !important; }
.page-edit .folio-icon { width: 16px; height: 16px; }
.contents-list .page-collection { display: block; }
.contents-list .page-preview { display: none; }
.contents-list .page-caption { display: flex; align-items: baseline; gap: 12px; text-align: left; padding: 6px 0; font-size: 20px; }
.contents-list .page-caption-title { font-weight: 400; white-space: normal; }
.contents-list .page-tile-section .page-caption-title { font-weight: 750; }
.contents-list .page-caption small { flex-shrink: 0; font-size: 14px; }
.contents-list .page-leader { flex: 1; border-bottom: 1px dotted #b7b7b0; min-width: 20px; }
.contents-empty { grid-column: 1 / -1; padding: 40px 0; color: #666; }
.book-editor { max-width: 900px; margin: 40px auto 80px; padding: 0 24px; }
.book-settings { max-width: 1080px; }
.cover-settings-layout { display: grid; grid-template-columns: minmax(200px, 32%) minmax(0, 1fr); gap: 40px; align-items: center; }
.cover-settings-preview { display: flex; gap: 12px; align-items: center; }
.cover-palette { display: flex; flex-direction: column; gap: 12px; flex-shrink: 0; }
.color-swatch { display: block; width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 50%; position: relative; background-image: none; }
.color-swatch input { appearance: none; position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; border-radius: 50%; cursor: pointer; }
.color-swatch:has(input:checked)::after { content: '✓'; position: absolute; inset: 0; display: grid; place-items: center; color: white; pointer-events: none; font-weight: 700; }
.color-swatch.theme-white:has(input:checked)::after { color: black; }
.book-title-fields .builder-field:first-of-type input { font-size: clamp(24px, 3vw, 44px); font-weight: 750; line-height: 1.1; }
.book-title-fields input[name=subtitle] { font-size: 22px; }
.builder-field { margin-bottom: 24px; }
.builder-field > label, .builder-field legend { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; }
.builder-field textarea { line-height: 1.7; font-size: 18px; }
.builder-choice-list { padding: 12px; border: 1px solid var(--line); border-radius: 8px; max-height: 240px; overflow-y: auto; }
.builder-switch { display: flex; align-items: center; flex-direction: row-reverse; justify-content: space-between; padding: 0; gap: 20px; }
.builder-switch .form-check-input { margin: 0; width: 48px; height: 28px; flex-shrink: 0; }
.builder-switch label { font-size: 22px; font-weight: 700; }
.access-settings { background: #f2f3ed; border-radius: 28px; padding: 28px; margin: 40px 0 24px; }
.access-row { display: flex; gap: 14px; align-items: center; padding: 14px 0; font-size: 20px; }
.access-leader { border-bottom: 1px dashed #b7b7b0; flex: 1; min-width: 20px; }
.course-link-settings { margin: 24px 0; font-size: 14px; }
.editor-heading h1 { font-size: 28px; }
.editor-toolbar { display: flex; align-items: center; justify-content: center; gap: 8px; background: #e4efff; padding: 8px 16px; border-radius: 40px; margin: 24px auto; width: fit-content; max-width: 100%; flex-wrap: wrap; }
.editor-toolbar .btn { background: none; border: 0; font-size: 20px; width: 40px; height: 40px; padding: 0; }
.toolbar-divider { height: 28px; border-left: 2px solid white; }
.editor-save { display: flex; flex-direction: column; align-items: center; gap: 12px; margin-top: 32px; }
.bookbuilder .save-pill { width: 82px; height: 54px; border-radius: 40px; font-size: 36px; line-height: 1; }
.editor-save > a { font-size: 13px; }
.reading-page { max-width: 900px; margin: 64px auto; padding: 0 24px; font-size: 22px; line-height: 1.6; overflow-wrap: anywhere; }
.reading-page > h1 { font-size: clamp(36px, 4vw, 56px); margin-bottom: 36px; line-height: 1.1; }
.reading-content p { margin-bottom: 1.6em; }
.reading-section { text-align: center; min-height: 55vh; display: flex; flex-direction: column; justify-content: center; }
.reading-footer { display: flex; justify-content: space-between; max-width: 900px; padding: 0 24px 40px; margin: auto; font-size: 14px; }
.practice-header { flex-wrap:wrap; display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 32px; }
.practice-header h2 { font-size: 22px; }
.practice-question { padding:24px 0; margin-bottom:24px; }
.practice-question h3 { font-size:16px; color:var(--folio-muted); margin:0 0 12px; }

.practice-question-text { color:var(--folio-blue); }
.practice-answer { margin-top:24px; }
.practice-answer h4 { font-size: 14px; }
.builder-form { max-width: 680px; margin: 50px auto; padding: 0 24px; }
.builder-panel { border: 1px solid var(--line); border-radius: 12px; }
.builder-danger-icon { display: inline-flex; }
@media (max-width: 1000px) { .bookshelf { grid-template-columns: repeat(3, minmax(0, 1fr)); } .contents-search { max-width: 100%; } }
@media (max-width: 700px) {
    .book-navbar { padding: 12px; gap: 8px; grid-template-columns: 44px minmax(0, 1fr) auto; }
    .book-breadcrumb { font-size: 12px; gap: 6px; }
    .book-nav-end { gap: 6px; }
    .bookbuilder .round-button { width: 36px; height: 36px; font-size: 22px; }
    .bookshelf { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 18px; padding: 12px 20px 40px; }
    .book-cover-title { font-size: 25px; }
    .book-cover-emblem .folio-icon { width: 28px; height: 28px; }
    .book-cover-author { font-size: 12px; }
    .shelf-book h2 { font-size: 15px; }
    .shelf-book p { font-size: 13px; }
    .book-layout { grid-template-columns: 1fr; margin: 24px 20px; gap: 28px; }
    .book-sidebar { position: static; max-width: 220px; margin: auto; }
    .book-heading h1 { font-size: 36px; }
    .contents-toolbar { gap: 18px; }
    .contents-search { flex: 1 1 100%; }
    .contents-list .page-caption { font-size: 17px; }
    .page-collection { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 14px; }
    .page-preview { padding: 14px; }
    .cover-settings-layout { grid-template-columns: 1fr; gap: 24px; }
    .cover-settings-preview { max-width: 270px; margin: auto; }
    .access-settings { padding: 20px; }
    .access-row { font-size: 16px; }
    .reading-page { margin: 36px auto; font-size: 18px; }
}
.bookbuilder .color-swatch input, .bookbuilder .color-swatch input:checked { background-color: transparent; background-image: none; border-color: transparent; }

.bookbuilder > .folio-navbar + .visually-hidden + dialog + .bookshelf { margin-top:32px; }
.book-search-result { display:grid; grid-template-columns:56px minmax(0,1fr) 24px; align-items:center; gap:16px; padding:16px 0; border-bottom:1px solid var(--line); text-decoration:none; }
.bookbuilder .book-search-result { color:var(--ink); }
.book-search-result small { display:block; margin-top:4px; color:#65655f; }
.book-search-thumbnail .book-cover-title { font-size:8px; }
.book-search-thumbnail .book-cover-author { font-size:5px; }
.book-search-thumbnail .book-cover-emblem .folio-icon { width:12px; height:12px; }

.practice-meta { font-size:14px; color:var(--folio-muted); margin:0; }
.practice-activity-header { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:16px; margin-bottom:20px; }
.practice-actions { display:flex; align-items:center; flex-wrap:wrap; gap:8px; margin:0; font-size:16px; }

.reading-next { margin-top:var(--folio-space-6); text-align:left; }
.reading-next-heading { display:flex; align-items:center; gap:var(--folio-space-2); }
.reading-next-heading h2 { font-size:24px; line-height:1.3; margin:var(--folio-space-1) 0 0; }
.reading-next-preview { font-size:18px; line-height:1.6; margin:var(--folio-space-3) 0; }
.reading-next-card > .folio-button { margin-top:var(--folio-space-2); font-size:16px; }

.reading-page-navigation { display:flex; justify-content:space-between; gap:var(--folio-space-2); margin-top:var(--folio-space-3); font-size:16px; }

.book-contents-modal { display:grid; grid-template-columns:180px minmax(0,1fr); gap:var(--folio-space-4); align-items:start; }
.book-contents-cover .book-cover-title { font-size:24px; }
.book-contents-cover .book-cover-author { font-size:12px; }
.book-contents-cover .book-cover-emblem .folio-icon { width:32px; height:32px; }
.book-contents-heading h2 { font-size:24px; margin:0 0 var(--folio-space-1); }
.book-contents-links { list-style:none; padding:0; margin:var(--folio-space-3) 0 0; }
.book-contents-links .page-caption-title[aria-current="page"] { color:var(--folio-blue) !important; font-weight:700; }
.book-contents-links .folio-badge { flex-shrink:0; }
@media(max-width:700px) {
    .book-contents-modal { grid-template-columns:minmax(0,1fr); gap:var(--folio-space-3); }
    .book-contents-cover { width:100px; }
    .book-contents-cover .book-cover-title { font-size:14px; }
    .book-contents-cover .book-cover-author { font-size:8px; }
    .book-contents-cover .book-cover-emblem .folio-icon { width:20px; height:20px; }
}