/* BrailleDot Learning Studio v1.3 — an editorial learning environment.
   Scoped to the course. It inherits the LIVE Kadence brand tokens:
   Plus Jakarta Sans + Roboto, blue #2B6CB0, ink and cool white.
   Existing blog posts, translator and navigation are not restyled. */

.bdls-course-page .bdls-learning-space {
  --bdls-blue: var(--global-palette1, #2B6CB0);
  --bdls-blue-dark: var(--global-palette2, #215387);
  --bdls-ink: #0B1220;
  --bdls-heading-ink: var(--global-palette3, #1A202C);
  --bdls-text: var(--global-palette4, #2D3748);
  --bdls-muted: var(--global-palette5, #4A5568);
  --bdls-line: #DEE5EC;
  --bdls-bg: var(--global-palette8, #F7FAFC);
  --bdls-white: var(--global-palette9, #fff);
  --bdls-heading-font: var(--global-heading-font-family, 'Plus Jakarta Sans', sans-serif);
  --bdls-body-font: var(--global-body-font-family, Roboto, sans-serif);
  background: var(--bdls-bg);
  color: var(--bdls-text);
  font-family: var(--bdls-body-font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 70vh;
  padding: 18px 0 88px;
}
.bdls-course-page .bdls-learning-space *,
.bdls-course-page .bdls-learning-space *::before,
.bdls-course-page .bdls-learning-space *::after { box-sizing: border-box; }
.bdls-course-page .bdls-container { width: min(1250px, calc(100% - 44px)); margin-inline: auto; }
.bdls-course-page .bdls-learning-space :focus-visible { outline: 3px solid var(--bdls-blue) !important; outline-offset: 4px; }
.bdls-course-page .bdls-learning-space :where(a) { color: var(--bdls-blue-dark); text-decoration: underline; text-underline-offset: 3px; }
.bdls-course-page .bdls-learning-space :where(a:hover) { color: var(--bdls-blue); }
.bdls-course-page .bdls-learning-space button { cursor: pointer; font-family: inherit; }
.bdls-course-page .bdls-learning-space :is(h1,h2,h3,h4) { font-family: var(--bdls-heading-font); }

/* The live Kadence navigation is the only header. Keep course context in unobtrusive breadcrumbs. */
.bdls-crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; padding: 0 0 19px; font-size: 12px; color: var(--bdls-muted); }
.bdls-course-page .bdls-crumbs a { text-decoration: none; }
.bdls-kicker { font-size: 11px; letter-spacing: .16em; font-weight: 800; text-transform: uppercase; color: var(--bdls-blue); }
.bdls-lesson-tag { font-size: 11px; letter-spacing: .10em; font-weight: 700; color: var(--bdls-muted); }
.bdls-content-layout { display: grid; align-items: start; gap: 33px; }
.bdls-content-layout.bdls-is-lesson { grid-template-columns: minmax(0, 1fr) 292px; }
.bdls-content-layout.bdls-is-hub { grid-template-columns: minmax(0, 1fr); }
.bdls-article { min-width: 0; }
.bdls-is-lesson .bdls-article { padding: clamp(25px, 4vw, 62px); background: var(--bdls-white); border: 1px solid var(--bdls-line); border-radius: 13px; }
.bdls-lesson-eyebrow { display: flex; justify-content: space-between; align-items: center; gap: 12px; border-bottom: 1px solid var(--bdls-line); padding-bottom: 15px; margin-bottom: 27px; }
.bdls-is-hub .bdls-lesson-eyebrow { display: none; }

/* A purposeful course cover, with dot geometry inspired by the actual code. */
.bdls-hub-hero {
  position: relative; isolation: isolate; overflow: hidden; display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(215px, .65fr); min-height: 312px;
  background: var(--bdls-ink); color: #fff; border-radius: 15px;
}
.bdls-hub-hero::before {
  content: ''; position: absolute; z-index: -1; inset: 0;
  background: radial-gradient(ellipse at 83% 13%, rgba(43,108,176,.22), transparent 43%),
              linear-gradient(115deg, transparent 40%, rgba(255,255,255,.025) 40%, rgba(255,255,255,.025) 40.15%, transparent 40.15%);
}
.bdls-hub-hero-copy { padding: clamp(30px, 4.9vw, 62px); align-self: center; }
.bdls-hub-overline { display: block; margin-bottom: 25px; font-size: 10px; line-height: 1.5; color: #9DC9F5; font-weight: 850; letter-spacing: .19em; }
.bdls-course-page .bdls-hub-hero h1 { max-width: 760px; margin: 0 0 19px; color: #fff; font-family: var(--bdls-heading-font); font-size: clamp(2rem, 3.7vw, 3.65rem); font-weight: 800; letter-spacing: -.045em; line-height: 1.16; }
.bdls-course-page .bdls-hub-hero p { max-width: 690px; margin: 0; color: #D5E1ED; font-size: clamp(15px, 1.18vw, 17px); line-height: 1.72; }
.bdls-hub-hero p strong { color: #fff; }
.bdls-hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 16px 24px; margin-top: 28px; }
.bdls-course-page .bdls-learning-space a.bdls-hero-cta { display: inline-flex; align-items: center; justify-content: space-between; gap: 22px; min-height: 50px; padding: 12px 18px 12px 21px; background: #347FD5; color: #fff; border: 1px solid #86BCFA; border-radius: 9px; text-decoration: none; font: 750 14px/1.4 var(--bdls-body-font); box-shadow: 0 10px 24px rgba(0,0,0,.2); transition: background-color .18s ease, transform .18s ease, box-shadow .18s ease; }
.bdls-course-page .bdls-learning-space a.bdls-hero-cta:hover { color: #fff; background: #2168B9; transform: translateY(-2px); box-shadow: 0 12px 29px rgba(0,0,0,.25); }
.bdls-course-page .bdls-learning-space a.bdls-hero-secondary { color: #FFF; padding: 11px 0; text-decoration: underline; text-decoration-color: #91BCE5; text-underline-offset: 5px; font-size: 13px; font-weight: 700; }
.bdls-course-page .bdls-learning-space a.bdls-hero-secondary:hover { color: #B9DBFF; }
.bdls-hub-hero-art { position: relative; display: flex; flex-direction: column; justify-content: center; align-items: center; margin: 28px 0; border-left: 1px solid rgba(255,255,255,.14); }
.bdls-art-small, .bdls-art-caption { color: #A7BBD0; font-size: 10px; font-weight: 700; letter-spacing: .16em; text-align: center; line-height: 1.9; }
.bdls-art-glyph { display: block; color: #74AFF0; font-size: clamp(104px, 13vw, 160px); line-height: 1.18; font-family: 'Segoe UI Symbol','Noto Sans Symbols 2',sans-serif; }

/* The curriculum: chapter rows, not a grid of lookalike cards. */
.bdls-learning-map { margin-top: 24px; margin-bottom: 52px; }
.bdls-map-header { display: grid; grid-template-columns: minmax(0, 1fr) 260px; align-items: end; gap: 40px; padding: 23px 1px 21px; }
.bdls-map-heading h2 { margin: 9px 0 8px; font-size: clamp(1.55rem, 2.7vw, 2.35rem); line-height: 1.2; letter-spacing: -.035em; color: var(--bdls-ink); font-weight: 800; }
.bdls-map-heading p { font-size: 14px; color: var(--bdls-muted); max-width: 680px; line-height: 1.65; margin: 0; }
.bdls-progress-card { display: grid; gap: 10px; align-self: center; border-left: 2px solid var(--bdls-blue); padding-left: 17px; }
.bdls-progress-label { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.bdls-progress-label span { color: var(--bdls-muted); font-weight: 800; font-size: 10px; letter-spacing: .09em; }
.bdls-progress-label strong { color: var(--bdls-heading-ink); font: 800 27px/1 var(--bdls-heading-font); }
.bdls-progress-card small { color: var(--bdls-muted); font-size: 11px; line-height: 1.5; }
.bdls-progress-track { height: 4px; width: 100%; background: #E4EAF1; overflow: hidden; }
.bdls-progress-track span { display: block; height: 100%; background: var(--bdls-blue); transition: width .2s ease; }
.bdls-total-progress { height: 5px; }
.bdls-course-stats { display: flex; gap: 10px 27px; flex-wrap: wrap; border-top: 1px solid var(--bdls-line); border-bottom: 1px solid var(--bdls-line); padding: 13px 3px; margin-bottom: 13px; color: var(--bdls-muted); font-size: 12px; font-weight: 650; }
.bdls-course-stats span + span::before { content: '·'; margin-right: 26px; color: var(--bdls-blue); }
.bdls-module-jump { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 9px; margin-bottom: 17px; }
.bdls-course-page .bdls-learning-space .bdls-module-jump a { display: flex; align-items: center; gap: 11px; min-height: 62px; padding: 11px 14px; border: 1px solid #CDD8E6; border-radius: 10px; color: var(--bdls-heading-ink); background: #FFF; font: 750 12px/1.5 var(--bdls-heading-font); text-decoration: none; box-shadow: 0 1px 3px rgba(11,18,32,.025); transition: background-color .16s ease, border-color .16s ease, box-shadow .16s ease, transform .16s ease; }
.bdls-module-jump a span { color: var(--bdls-blue); font: 800 12px/1 var(--bdls-body-font); }
.bdls-course-page .bdls-learning-space .bdls-module-jump a:hover, .bdls-module-jump a:focus-visible { color: #153D74; background: #ECF4FC; border-color: #7DAEDB; box-shadow: 0 3px 12px rgba(43,108,176,.1); transform: translateY(-1px); }
.bdls-curriculum { background: var(--bdls-white); border-bottom: 1px solid var(--bdls-line); }
.bdls-curriculum-chapter { display: grid; grid-template-columns: minmax(230px, .8fr) minmax(0, 1.4fr); border-top: 1px solid var(--bdls-line); scroll-margin-top: 110px; }
.bdls-curriculum-chapter:hover { background: #FBFCFE; }
.bdls-curriculum-chapter:first-child { border-top: 0; }
.bdls-chapter-description { padding: 31px clamp(20px, 3vw, 42px) 30px; border-right: 1px solid var(--bdls-line); }
.bdls-chapter-meta { display: flex; justify-content: space-between; gap: 10px; align-items: center; }
.bdls-module-num { font-size: 10px; font-weight: 800; letter-spacing: .17em; color: var(--bdls-blue); }
.bdls-sign { font: 46px/1 'Segoe UI Symbol','Noto Sans Symbols 2',sans-serif; color: #B0C7DC; }
.bdls-chapter-description h3 { color: var(--bdls-heading-ink); font: 800 clamp(1.25rem, 1.9vw, 1.7rem)/1.25 var(--bdls-heading-font); letter-spacing: -.025em; margin: 11px 0 9px; }
.bdls-chapter-description p { font-size: 13px; line-height: 1.65; margin: 0 0 23px; color: var(--bdls-muted); }
.bdls-module-progress { display: flex; justify-content: space-between; gap: 8px; font-size: 10px; color: var(--bdls-muted); margin: 0 0 8px; font-weight: 650; }
.bdls-article-content .bdls-lesson-list { margin: 0; padding: 17px clamp(20px, 3vw, 42px); list-style: none; }
.bdls-article-content .bdls-lesson-list li { margin: 0; }
.bdls-lesson-list li { display: grid; grid-template-columns: 30px minmax(0,1fr) auto; align-items: center; gap: 14px; padding: 13px 0; border-bottom: 1px solid #EEF1F5; font-size: 13px; line-height: 1.5; margin: 0; }
.bdls-lesson-list li:has(a):hover { color: var(--bdls-blue-dark); }
.bdls-lesson-list li:last-child { border-bottom: 0; }
.bdls-lesson-index { color: #788A9E; font: 800 12px/1.3 var(--bdls-body-font); }
.bdls-course-page .bdls-lesson-list a { color: var(--bdls-heading-ink); font-weight: 750; text-decoration: none; }
.bdls-course-page .bdls-lesson-list a:hover { color: var(--bdls-blue); text-decoration: underline; }
.bdls-unavailable { color: #566273; }
.bdls-state { color: #718096; font-size: 10px; font-weight: 650; white-space: nowrap; }
.bdls-state-live { color: var(--bdls-blue-dark); font-weight: 800; }
.bdls-has-check .bdls-lesson-index, .bdls-side-list .bdls-has-check .bdls-side-no { color: var(--bdls-blue) !important; }
.bdls-has-check a::after { content: '  ✓'; color: var(--bdls-blue); font-weight: 800; }

.bdls-bottom-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding: 25px 1px 29px; border-bottom: 1px solid var(--bdls-line); }
.bdls-course-page .bdls-primary-button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 16px; background: var(--bdls-blue); color: #fff !important; border: 1px solid var(--bdls-blue); border-radius: 7px; font-size: 13px; font-weight: 750; text-decoration: none; padding: 12px 21px; box-shadow: 0 4px 12px rgba(43,108,176,.12); transition: background-color .18s ease, box-shadow .18s ease, transform .18s ease; }
.bdls-course-page .bdls-primary-button:hover { background: var(--bdls-blue-dark); border-color: var(--bdls-blue-dark); box-shadow: 0 7px 17px rgba(43,108,176,.18); transform: translateY(-1px); }
.bdls-course-page .bdls-learning-space a.bdls-outline-button { display: inline-flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 48px; padding: 12px 18px; background: #FFF; border: 1px solid #86ADCF; border-radius: 8px; color: #174E84; text-decoration: none; font-size: 13px; font-weight: 800; box-shadow: 0 3px 9px rgba(43,108,176,.05); transition: border-color .15s ease, background-color .15s ease, transform .15s ease; }
.bdls-course-page .bdls-learning-space a.bdls-outline-button:hover { border-color: var(--bdls-blue); color: #123D6B; background: #EDF5FD; transform: translateY(-1px); }
.bdls-course-page .bdls-text-button { margin-left: auto; padding: 11px 15px; border: 1px solid #D3DEE8; border-radius: 8px; background: #FFF; color: #3C526A; font-size: 12px; font-weight: 700; text-decoration: none; }
.bdls-course-page .bdls-text-button:hover { background: #EDF2F7; color: #122840; border-color: #B2C5D8; }
.bdls-fineprint { font-size: 11px; line-height: 1.7; color: var(--bdls-muted); margin: 17px 0 0; }

/* A small opt-in practice station, deliberately secondary to the course. */
.bdls-cell-demo { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 32px; align-items: center; padding: 32px 0; border-bottom: 1px solid var(--bdls-line); }
.bdls-cell-demo h3 { font: 800 clamp(1.25rem, 1.9vw, 1.65rem)/1.25 var(--bdls-heading-font); letter-spacing: -.02em; margin: 9px 0; color: var(--bdls-heading-ink); }
.bdls-cell-demo p { font-size: 13px; line-height: 1.65; color: var(--bdls-text); margin: 0 0 10px; }
.bdls-cell-demo small { font-size: 11px; color: var(--bdls-muted); line-height: 1.5; }
.bdls-cell-demo-action { display: flex; align-items: center; gap: 22px; padding: 18px 21px; background: var(--bdls-white); border: 1px solid var(--bdls-line); border-radius: 9px; }
.bdls-dot-cell { display: grid; grid-template-rows: repeat(3, 1fr); grid-auto-flow: column; grid-template-columns: repeat(2, 40px); gap: 7px; flex: none; }
.bdls-dot-cell button { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; border: 2px solid #B9C7D8; background: #fff; color: #566D87; font-size: 12px; font-weight: 800; padding: 0; transition: border-color .16s ease, background-color .16s ease, transform .16s ease; }
.bdls-dot-cell button:hover { border-color: var(--bdls-blue); transform: scale(1.06); }
.bdls-dot-cell button[aria-pressed='true'] { color: #fff; background: var(--bdls-blue); border-color: var(--bdls-blue); }
.bdls-cell-feedback { color: var(--bdls-muted); font-size: 11px; line-height: 1.5; }
.bdls-cell-feedback > span { display: block; font: 70px/1 'Segoe UI Symbol','Noto Sans Symbols 2',sans-serif; color: var(--bdls-blue); }
.bdls-cell-feedback [data-bdls-cell-result] { min-height: 34px; }
.bdls-cell-feedback [data-bdls-cell-result].bdls-correct { color: var(--bdls-blue-dark); font-weight: 800; }
.bdls-cell-controls { display: flex; align-items: center; flex-wrap: wrap; gap: 11px; }
.bdls-cell-feedback button { margin-top: 6px; padding: 5px 0; border: 0; border-bottom: 1px solid var(--bdls-blue); background: none; color: var(--bdls-blue-dark); font-size: 11px; font-weight: 750; }
.bdls-cell-feedback .bdls-cell-guide { margin: 11px 0 0; font-size: 11px; color: var(--bdls-text); line-height: 1.5; }
.bdls-cell-feedback .bdls-cell-guide[hidden] { display: none; }

/* Question groups stay visually together instead of leaving large gaps between print/Braille options. */
.bdls-choice-question { margin: 15px 0; padding: 17px 20px; border: 1px solid var(--bdls-line); border-left: 3px solid var(--bdls-blue); border-radius: 9px; background: #FAFCFE; }
.bdls-choice-question p { margin: 0 0 10px !important; font-weight: 650; }
.bdls-article-content .bdls-choice-question ul { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; list-style: none; padding: 0; margin: 0; }
.bdls-article-content .bdls-choice-question li { margin: 0; padding: 11px 14px; min-height: 47px; background: #FFF; border: 1px solid #DCE5EF; border-radius: 7px; font-size: 18px; line-height: 1.4; }

/* Approved pillar text is fully visible, indexable and pleasantly readable. */
.bdls-hub-longform { margin: 0 auto; max-width: 890px; padding: 36px 4px 0; }
.bdls-hub-section-label { color: var(--bdls-blue) !important; text-transform: uppercase; letter-spacing: .17em; font-size: 11px !important; font-weight: 850; border-top: 2px solid var(--bdls-blue); display: inline-block; padding-top: 17px; }
.bdls-course-page .bdls-article-content { min-width: 0; overflow-wrap: anywhere; font-family: var(--bdls-body-font); font-size: clamp(16px, 1.1vw, 17px); font-weight: 400; letter-spacing: -.007em; line-height: 1.79; color: var(--bdls-text); }
.bdls-article-content > h1:first-child { font-size: clamp(1.95rem, 3.4vw, 3.1rem); line-height: 1.18; letter-spacing: -.04em; margin: 0 0 24px; color: var(--bdls-heading-ink); }
.bdls-article-content h2, .bdls-article-content h3, .bdls-article-content h4 { color: var(--bdls-heading-ink); line-height: 1.3; letter-spacing: -.025em; font-weight: 800; scroll-margin-top: 110px; }
.bdls-article-content h2 { font-size: clamp(1.45rem, 2.25vw, 2rem); margin: 44px 0 17px; }
.bdls-article-content h3 { font-size: clamp(1.12rem, 1.7vw, 1.45rem); margin: 30px 0 12px; }
.bdls-article-content p, .bdls-article-content li { line-height: 1.79; }
.bdls-article-content p { margin: 0 0 19px; }
.bdls-article-content ul, .bdls-article-content ol { margin: 12px 0 26px; padding-left: 1.45rem; }
.bdls-article-content li { margin: 7px 0; }
.bdls-article-content strong { color: var(--bdls-heading-ink); }
.bdls-article-content table { width: 100%; border-collapse: collapse; border: 1px solid var(--bdls-line); background: #fff; font-size: 14px; margin: 20px 0 29px; }
.bdls-article-content th { text-align: left; background: #EDF2F7; color: var(--bdls-heading-ink); font-weight: 800; }
.bdls-article-content td, .bdls-article-content th { padding: 13px 14px; border-bottom: 1px solid var(--bdls-line); vertical-align: top; }
.bdls-article-content tr + tr td { border-top: 1px solid var(--bdls-line); }
.bdls-article-content pre { padding: 17px 19px; overflow-x: auto; background: #EDF2F7; color: var(--bdls-heading-ink); border-radius: 6px; }
.bdls-article-content :is(pre,code) { white-space: pre-wrap; word-break: break-word; }
.bdls-article-content blockquote { padding: 13px 22px; margin: 28px 0; border-left: 3px solid var(--bdls-blue); background: #EDF2F7; }
.bdls-article-content details { border-top: 1px solid var(--bdls-line); border-bottom: 1px solid var(--bdls-line); padding: 15px 0; margin: 19px 0; background: none; }
.bdls-article-content details summary { cursor: pointer; color: var(--bdls-heading-ink); font-weight: 750; }
.bdls-article-content details[open] summary { margin-bottom: 14px; }

/* Article lessons: a true reading desk with compact adjacent course outline. */
.bdls-course-sidebar { position: sticky; top: 24px; }
.bdls-sidebar-card { padding: 25px 21px; background: #fff; border: 1px solid var(--bdls-line); border-radius: 10px; }
.bdls-sidebar-card h2 { margin: 7px 0 9px; color: var(--bdls-heading-ink); font-size: 21px; line-height: 1.2; letter-spacing: -.025em; }
.bdls-sidebar-card > p { font-size: 12px; line-height: 1.6; color: var(--bdls-muted); margin: 0 0 15px; }
.bdls-side-progress { border-top: 1px solid var(--bdls-line); border-bottom: 1px solid var(--bdls-line); padding: 10px 0; font-size: 11px; font-weight: 700; color: var(--bdls-blue-dark); }
.bdls-side-list { list-style: none; padding: 0; margin: 12px 0 20px; }
.bdls-side-list li { display: grid; grid-template-columns: 26px minmax(0,1fr); gap: 7px; padding: 8px 3px; border-bottom: 1px solid #EEF1F5; line-height: 1.45; font-size: 11px; color: var(--bdls-muted); }
.bdls-side-list li.is-current { background: #EDF2F7; border-left: 3px solid var(--bdls-blue); padding-left: 7px; }
.bdls-side-no { color: #718096; font-weight: 850; font-size: 11px; }
.bdls-course-page .bdls-side-list a { text-decoration: none; font-weight: 700; }
.bdls-course-page .bdls-back-hub { display: inline-block; font-size: 12px; font-weight: 800; text-decoration: none; }
.bdls-course-page .bdls-learning-space a.bdls-back-hub { display: inline-flex; padding: 11px 13px; border: 1px solid #D8E3ED; border-radius: 7px; background: #F7FAFC; color: #174E84; }
.bdls-mobile-lesson-menu { display: none; }
.bdls-complete { display: flex; align-items: center; justify-content: space-between; gap: 22px; padding: 24px 0; margin: 43px 0 0; border-top: 2px solid var(--bdls-blue); border-bottom: 1px solid var(--bdls-line); }
.bdls-complete h2 { margin: 8px 0; font-size: clamp(1.18rem, 2vw, 1.5rem); }
.bdls-complete p { max-width: 520px; margin: 0; line-height: 1.6; font-size: 12px; color: var(--bdls-muted); }
.bdls-complete button { flex: none; }
.bdls-complete button[aria-pressed='true'] { background: #fff !important; color: var(--bdls-blue-dark) !important; }
.bdls-prev-next { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 10px; padding: 22px 0; border-bottom: 1px solid var(--bdls-line); font-size: 12px; }
.bdls-prev-next > div:last-child { text-align: right; }
.bdls-prev-next span { color: var(--bdls-muted); }
.bdls-course-page .bdls-prev-next a { font-weight: 750; text-decoration: none; }
.bdls-worksheet { padding: 24px; margin: 38px 0; border: 1px solid var(--bdls-line); border-top: 3px solid var(--bdls-blue); background: #fff; }
.bdls-worksheet-top { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.bdls-worksheet h2 { margin: 6px 0 12px; }
.bdls-worksheet-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.bdls-course-page .bdls-learning-space a.bdls-download-button { display: inline-flex; gap: 10px; align-items: center; padding: 11px 15px; background: var(--bdls-blue); color: #FFF; text-decoration: none; border-radius: 7px; border: 1px solid var(--bdls-blue); font-size: 12px; line-height: 1.4; font-weight: 800; }
.bdls-course-page .bdls-learning-space a.bdls-download-button:hover { background: var(--bdls-blue-dark); color: #FFF; }
.bdls-worksheet .bdls-print-button { border: 1px solid #86ADCF; border-radius: 7px; background: #fff; padding: 11px 15px; color: #174E84; font-size: 12px; font-weight: 800; }
.bdls-worksheet .bdls-print-button:hover { background: #EDF5FD; }
.bdls-worksheet .bdls-article-content ul { line-height: 1.6; }
.bdls-course-resource { background: #EDF5FD; border-left: 4px solid var(--bdls-blue); padding: 20px 24px; margin: 26px 0; border-radius: 0 10px 10px 0; }
.bdls-course-resource strong { color: var(--bdls-ink); }
.bdls-course-resource p { margin: 7px 0 12px; font-size: 14px; }
.bdls-course-page .bdls-learning-space .bdls-course-resource a { display: inline-flex; font-size: 13px; font-weight: 800; }
.bdls-course-resource small { display: block; margin-top: 10px; color: var(--bdls-muted); font-size: 11px; }
.bdls-download { margin: 24px 0; padding: 17px 20px; border-left: 3px solid var(--bdls-blue); background: #EDF2F7; }
.bdls-download p:last-child { font-size: 12px; color: var(--bdls-muted); }

/* One exceptionally lightweight, indexable video lesson per published page.
   The native browser-lazy iframe needs no player library or YouTube JS preload. */
.bdls-video-feature {
  position: relative; isolation: isolate; overflow: hidden; margin: 26px 0 35px;
  padding: clamp(20px, 3.4vw, 31px); border-radius: 16px;
  color: #F7FBFF; border: 1px solid #3A688B;
  background: radial-gradient(ellipse at 90% -25%, rgba(35,149,226,.29), transparent 56%),
              linear-gradient(137deg, #061A34 4%, #0A2A4B 57%, #0B233D 100%);
  box-shadow: 0 14px 40px rgba(13,40,70,.15);
}
.bdls-video-feature::after {
  content: ''; position: absolute; inset: auto -50px -85px auto; z-index: -1;
  width: 190px; height: 190px; border: 1px solid rgba(118,181,224,.11);
  border-radius: 50%; box-shadow: 0 0 0 35px rgba(118,181,224,.035),0 0 0 72px rgba(118,181,224,.025);
  pointer-events: none;
}
.bdls-video-feature-head { display: flex; align-items: start; justify-content: space-between; gap: 20px; margin-bottom: 20px; }
.bdls-video-feature-kicker { display: inline-block; color: #89C7F4; font-size: 10px; font-weight: 850; letter-spacing: .115em; line-height: 1.6; }
.bdls-video-feature-kicker > span:first-child { color: #4DC2EE; margin-right: 6px; font-size: 8px; }
.bdls-video-module { color: #A4C1D9; letter-spacing: .06em; }
.bdls-course-page .bdls-video-feature h2 {
  color: #fff; font: 800 clamp(1.34rem, 2.5vw, 1.8rem)/1.24 var(--bdls-heading-font);
  margin: 8px 0 8px; letter-spacing: -.025em;
}
.bdls-course-page .bdls-video-feature p { color: #C9DCED; max-width: 630px; font-size: 13px; line-height: 1.66; margin: 0; }
.bdls-video-feature-badge { flex: none; color: #D6EFFF; font-size: 9px; letter-spacing: .11em; font-weight: 850; border: 1px solid #477EAE; background: rgba(23,92,151,.3); border-radius: 999px; padding: 8px 12px; }
.bdls-video-frame {
  position: relative; width: 100%; aspect-ratio: 16 / 9; background: #010C18;
  border: 1px solid #40769F; border-radius: 11px; overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,.23); scroll-margin-top: 100px;
}
.bdls-video-frame iframe { display: block; width: 100%; height: 100%; border: 0; }
.bdls-video-feature-footer { display: flex; align-items: center; gap: 10px 19px; flex-wrap: wrap; margin-top: 18px; }
.bdls-course-page .bdls-learning-space a.bdls-video-watch-button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 11px 17px; border-radius: 8px;
  background: #2F83D1; color: #FFF; border: 1px solid #77B8F0;
  font: 800 12px/1.35 var(--bdls-body-font); letter-spacing: .005em;
  text-decoration: none; box-shadow: 0 5px 17px rgba(0,0,0,.15);
  transition: transform .18s ease, background-color .18s ease;
}
.bdls-course-page .bdls-learning-space a.bdls-video-watch-button:hover { color:#FFF; background:#2375C6; transform: translateY(-2px); }
.bdls-course-page .bdls-learning-space a.bdls-video-external { color: #D3E9F9; font-size: 12px; font-weight: 760; text-decoration: underline; text-underline-offset: 4px; }
.bdls-course-page .bdls-learning-space a.bdls-video-external:hover { color: #FFF; }
.bdls-video-note { margin-left: auto; color: #B1CBDF; font-size: 11px; line-height: 1.55; }

/* A small persistent lesson tool shortcut, with a readable label and no opaque overlay. */
.bdls-course-page .bdls-learning-space a.bdls-translator-float { position: fixed; z-index: 30; right: 20px; bottom: 19px; display: inline-flex; align-items: center; gap: 10px; min-height: 46px; padding: 9px 15px 9px 10px; color: #FFF; background: #174F8B; border: 1px solid #0F3B68; border-radius: 999px; box-shadow: 0 5px 16px rgba(11,18,32,.18); font-size: 12px; font-weight: 750; text-decoration: none; line-height: 1.3; transition: transform .16s ease, box-shadow .16s ease, background-color .16s ease; }
.bdls-course-page .bdls-learning-space a.bdls-translator-float:hover { transform: translateY(-2px); color: #FFF; background: #0F3B68; box-shadow: 0 8px 22px rgba(11,18,32,.22); }
.bdls-float-dots { display: grid; place-items: center; background: #FFF; color: #174F8B; border-radius: 50%; width: 27px; height: 27px; font-size: 20px; font-weight: 700; }

@media (max-width: 1060px) {
  .bdls-content-layout.bdls-is-lesson { grid-template-columns: minmax(0,1fr); }
  .bdls-course-sidebar { position: static; }
  .bdls-desktop-lesson-menu { display: none; }
  .bdls-mobile-lesson-menu { display: block; }
  .bdls-mobile-lesson-menu summary { display: block; padding: 16px 20px; border: 1px solid var(--bdls-line); background: #fff; border-radius: 8px; font-size: 13px; font-weight: 800; }
  .bdls-mobile-lesson-menu .bdls-sidebar-card { margin-top: 10px; }
  .bdls-side-list { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0 18px; }
}
@media (max-width: 760px) {
  .bdls-hub-hero { grid-template-columns: 1fr; }
  .bdls-hub-hero-copy { padding: 31px; }
  .bdls-hub-hero-art { display: none; }
  .bdls-map-header { grid-template-columns: 1fr; gap: 18px; }
  .bdls-progress-card { max-width: 400px; }
  .bdls-module-jump { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .bdls-module-jump a:nth-child(2) { border-right: 0; }
  .bdls-curriculum-chapter { grid-template-columns: 1fr; }
  .bdls-chapter-description { border-right: 0; border-bottom: 1px solid var(--bdls-line); padding: 24px; }
  .bdls-chapter-description p { margin-bottom: 16px; }
  .bdls-article-content .bdls-lesson-list { padding: 12px 24px; }
  .bdls-cell-demo { grid-template-columns: 1fr; gap: 16px; }
  .bdls-cell-demo-action { max-width: 370px; }
  .bdls-article-content .bdls-choice-question ul { grid-template-columns: 1fr; }
  .bdls-choice-question { padding: 15px; }
}
@media (max-width: 540px) {
  .bdls-course-page .bdls-container { width: calc(100% - 24px); }
  .bdls-hub-hero-copy { padding: 28px 22px; }
  .bdls-course-page .bdls-hub-hero h1 { font-size: clamp(1.9rem, 8vw, 2.7rem); }
  .bdls-hub-overline { font-size: 9px; letter-spacing: .10em; }
  .bdls-map-header { padding-top: 22px; }
  .bdls-course-stats { gap: 6px 15px; }
  .bdls-course-stats span + span::before { margin-right: 12px; }
  .bdls-course-page .bdls-module-jump a { font-size: 11px; min-height: 62px; }
  .bdls-chapter-description, .bdls-article-content .bdls-lesson-list { padding-inline: 17px; }
  .bdls-lesson-list li { grid-template-columns: 23px minmax(0,1fr); gap: 7px; }
  .bdls-state { grid-column: 2; }
  .bdls-bottom-actions { align-items: stretch; flex-direction: column; }
  .bdls-course-page .bdls-text-button { margin-left: 0; align-self: flex-start; }
  .bdls-is-lesson .bdls-article { padding: 23px 17px; }
  .bdls-article-content table { display: block; overflow-x: auto; max-width: 100%; }
  .bdls-article-content th, .bdls-article-content td { padding: 10px 11px; }
  .bdls-side-list { grid-template-columns: 1fr; }
  .bdls-complete { flex-direction: column; align-items: flex-start; }
  .bdls-prev-next { grid-template-columns: repeat(2,1fr); }
  .bdls-prev-next > a { grid-column: 1/-1; text-align: center; order: -1; }
  .bdls-course-page .bdls-learning-space a.bdls-translator-float { right: 12px; bottom: 12px; min-height: 43px; font-size: 11px; padding: 7px 12px 7px 8px; }
  .bdls-float-dots { width: 25px; height: 25px; }
  .bdls-video-feature { margin: 19px -3px 28px; padding: 17px; border-radius: 12px; }
  .bdls-video-feature-head { flex-direction: column; gap: 11px; }
  .bdls-video-module { display: block; }
  .bdls-video-feature-badge { order: -1; }
  .bdls-video-feature-footer { flex-direction: column; align-items: stretch; gap: 13px; }
  .bdls-course-page .bdls-learning-space a.bdls-video-watch-button { width: 100%; }
  .bdls-video-note { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .bdls-course-page .bdls-learning-space * { transition: none !important; scroll-behavior: auto !important; }
}
@media print {
  .bdls-course-page .bdls-learning-space { background: #fff !important; padding: 0; color: #000; }
  .bdls-crumbs, .bdls-course-sidebar, .bdls-bottom-actions, .bdls-complete, .bdls-prev-next, .bdls-print-button, .bdls-translator-float, .bdls-cell-demo, .bdls-module-jump, .bdls-video-feature { display: none !important; }
  .bdls-is-lesson .bdls-article { border: 0; padding: 0; }
  .bdls-hub-hero { background: #fff; color: #000; border: 1px solid #000; }
  .bdls-course-page .bdls-hub-hero h1, .bdls-hub-hero p { color: #000 !important; }
  .bdls-hub-hero-art { display: none; }
  .bdls-curriculum-chapter { page-break-inside: avoid; }
  .bdls-worksheet { padding: 0; border: 0; }
  .bdls-article-content a { color: #000; text-decoration: underline; }
  body.bdls-print-worksheet .bdls-article-content, body.bdls-print-worksheet .bdls-lesson-eyebrow { display: none !important; }
  body.bdls-print-worksheet .bdls-worksheet { display: block !important; margin: 0; }
  body.bdls-print-worksheet :is(#masthead,#colophon,.site-header,.site-footer,.comments-area,.site-main-header-wrap) { display: none !important; }
  body.bdls-print-worksheet .bdls-worksheet-actions { display: none !important; }
}