:root{color-scheme:light;--cream:#F6F5EF;--paper:#fff;--ink:#384237;--muted:#6d7669;--line:#e4e8de;--green:#518F25;--bright:#65B32E;--pale:#eff5e8;--orange:#F7A519;--shadow:0 8px 35px #38423707;--radius:22px}
*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--ink);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;line-height:1.55}button,input,select{font:inherit}button,a,select,input{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.55}a{color:var(--green)}[hidden]{display:none!important}svg{display:block}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #F7A519;outline-offset:4px}button,select,input{color:var(--ink)}h1,h2,p{margin:0}h1{font-size:clamp(28px,3vw,40px);line-height:1.2;font-weight:650;letter-spacing:-1.25px}h2{font-size:21px;line-height:1.3;font-weight:650;letter-spacing:-.35px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-80px;left:16px;z-index:5;background:var(--paper);padding:12px 20px;border-radius:10px}.skip-link:focus{top:12px}
.site-header{height:104px;max-width:1384px;margin:auto;padding:14px 42px;display:flex;align-items:center;gap:28px;border-bottom:1px solid #e0e4d9}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);font-size:24px;font-weight:760;letter-spacing:2px}.brand svg{width:30px;height:30px;fill:none;stroke:var(--green);stroke-width:1.9;stroke-linejoin:round}.header-note{padding-left:26px;border-left:1px solid #d8ddcf;font-size:13px;color:var(--muted)}.centrum-logo{object-fit:contain;width:106px;height:76px;margin-left:auto}.page{max-width:1384px;margin:0 auto;padding:36px 42px 0}.lesson-heading{display:flex;justify-content:space-between;align-items:center;gap:32px;margin-bottom:27px}.eyebrow{text-transform:uppercase;color:var(--green);font-size:10px;font-weight:750;letter-spacing:1.8px;margin-bottom:8px}.lesson-description{margin-top:12px;color:var(--muted);font-size:14px;max-width:650px}.lesson-description:empty{display:none}.lesson-meta{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:flex-end;font-size:12px;flex-shrink:0}.duration{color:var(--muted);white-space:nowrap}.duration:before{content:'◷';font-size:19px;margin-right:6px;vertical-align:-1px}.pill{background:#eaf1e1;color:var(--green);font-size:11px;font-weight:650;padding:5px 10px;border-radius:7px;white-space:nowrap}.lesson-picker{display:block;width:100%;font-size:11px;color:var(--muted)}.lesson-picker select{display:block;background:white;border:1px solid var(--line);padding:5px;width:100%;margin-top:4px;border-radius:6px}
.lesson-grid{display:grid;grid-template-columns:minmax(0,1fr) 315px;gap:24px;align-items:start}.watch-card{border-radius:var(--radius);overflow:hidden;background:var(--paper);box-shadow:var(--shadow);border:1px solid var(--line)}.media-stage{background:#263124;position:relative;aspect-ratio:16/9}.media-stage video{width:100%;height:100%;display:block;object-fit:contain}.media-stage video::cue{font-size:20px;background:#253221e0;color:white;line-height:1.5}.playback-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 18px;border-bottom:1px solid #edf0e8}.mode-switch{display:flex;background:var(--cream);border:1px solid var(--line);padding:3px;border-radius:9px;flex-shrink:0}.mode-switch button{border:0;background:transparent;padding:7px 11px;display:flex;align-items:center;gap:7px;border-radius:6px;font-size:12px;color:var(--muted);font-weight:600;white-space:nowrap}.mode-switch button[aria-pressed=true]{background:var(--paper);box-shadow:0 1px 4px #38423712;color:var(--green)}.mode-switch button svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linejoin:round}.playback-options{display:flex;gap:14px;align-items:center}.subtle-button{display:flex;align-items:center;gap:7px;border:0;background:none;font-size:11px;padding:5px 0;color:var(--muted);white-space:nowrap}.subtle-button[aria-pressed=true]{color:var(--green)}.cc-icon{display:inline-block;border:1px solid currentColor;padding:0 3px;font-size:9px;font-weight:750;border-radius:3px;line-height:1.5}.speed-label{font-size:11px;color:var(--muted);display:flex;align-items:center;gap:7px}.speed-label select{background:white;border:1px solid var(--line);font-size:12px;padding:5px 6px;border-radius:6px;cursor:pointer}.now-playing{display:flex;align-items:center;padding:12px 21px;gap:10px;font-size:12px;color:var(--muted)}.pulse-dot{width:6px;height:6px;border-radius:100%;background:var(--bright);flex-shrink:0}#current-chapter{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}#playhead{margin-left:auto;font-variant-numeric:tabular-nums;flex-shrink:0}.inline-error{padding:0 18px 16px;font-size:13px;color:#a0402f}
.chapter-card{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:25px 19px 17px;box-shadow:var(--shadow)}.card-heading{display:flex;align-items:center;justify-content:space-between;padding:0 7px}.card-heading .eyebrow{margin-bottom:6px}.count-badge{font-size:11px;color:var(--green);font-weight:650;background:var(--pale);border-radius:50%;width:29px;height:29px;display:grid;place-items:center}.chapter-hint{padding:0 7px;margin:13px 0 16px;font-size:12px;color:var(--muted);line-height:1.65}.chapter-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:5px;max-height:374px;overflow:auto;scrollbar-width:thin}.chapter-button{width:100%;text-align:left;display:grid;grid-template-columns:25px minmax(0,1fr) auto;gap:10px;align-items:start;border:1px solid transparent;border-radius:11px;background:transparent;padding:13px 9px;color:var(--ink)}.chapter-button:hover{background:#f7f9f3}.chapter-button[aria-current=true]{background:var(--pale);border-color:#e1ebd4}.chapter-number{background:var(--cream);height:24px;width:24px;border-radius:50%;display:grid;place-items:center;font-size:10px;color:#7c8575;font-weight:650}.chapter-button[aria-current=true] .chapter-number{background:var(--bright);color:white}.chapter-name{font-size:12px;font-weight:650;line-height:1.5}.chapter-summary{font-size:11px;line-height:1.55;color:var(--muted);display:block;margin-top:4px;font-weight:400}.chapter-time{font-size:10px;line-height:24px;color:var(--muted);font-variant-numeric:tabular-nums}
.support-grid{display:grid;grid-template-columns:minmax(0,1fr) 315px;gap:24px;margin:26px 0}.transcript-card,.lecturer-card{background:white;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.transcript-card{padding:25px 27px 16px}.transcript-heading{display:flex;justify-content:space-between;align-items:center;gap:14px}.quiet-note{font-size:11px;color:var(--muted);line-height:1.7}.search-box{margin-top:21px;display:flex;align-items:center;gap:10px;border:1px solid var(--line);background:#fcfdf9;border-radius:10px;padding:10px 12px}.search-box svg{height:17px;width:17px;stroke:#8a9580;stroke-width:1.6;fill:none;flex-shrink:0}.search-box input{border:0;background:transparent;padding:0;font-size:12px;width:100%;outline-offset:9px}.search-box input::placeholder{color:#939b8c}.search-status{font-size:10px;color:var(--muted);margin:11px 0 6px}.transcript-list{max-height:290px;overflow:auto;scrollbar-width:thin}.transcript-row{display:grid;grid-template-columns:44px 1fr;gap:13px;text-align:left;padding:13px 8px;width:100%;border:0;border-top:1px solid #eff1eb;background:transparent;border-radius:3px;font-size:12px;color:var(--ink);line-height:1.75}.transcript-row:hover,.transcript-row.is-current{background:#f6f9f0}.transcript-time{color:var(--green);font-size:11px;font-variant-numeric:tabular-nums;padding-top:2px}.transcript-row mark{background:#fae7bb;color:inherit;border-radius:2px;padding:1px 2px}.empty-search{font-size:13px;color:var(--muted);padding:23px 4px}.lesson-side-notes{display:flex;flex-direction:column;gap:18px}.lecturer-card{padding:23px 26px}.lecturer-line{display:flex;align-items:center;gap:12px;margin:16px 0 17px}.lecturer-line h2{font-size:17px}.lecturer-line p{font-size:11px;color:var(--muted);margin-top:4px}.lecturer-icon{width:46px;height:46px;background:var(--pale);border-radius:50%;display:grid;place-items:center;flex-shrink:0}.lecturer-icon svg{width:30px;height:30px;fill:none;stroke:#8aac6c;stroke-width:1.4;stroke-linecap:round}.primary-link{text-decoration:none;display:block;text-align:center;padding:9px 12px;border-radius:9px;background:var(--green);color:white;font-size:12px;font-weight:600}.primary-link:hover{background:#447c1c}.take-away-card{padding:22px 26px 24px;border:1px solid #e2e9d6;background:#eef3e5;border-radius:var(--radius)}.small-heart{font-size:28px;line-height:1;color:var(--green);display:block;margin-bottom:11px}.take-away-card h2{font-size:15px;letter-spacing:0}.take-away-card p{font-size:12px;color:var(--muted);margin-top:8px;line-height:1.8}.text-link{font-size:12px;text-decoration:none;color:var(--green);font-weight:650;display:inline-block;margin-top:15px}.text-link span{margin-left:7px}.lesson-footer{border-top:1px solid #e0e4d9;padding:22px 0 27px;display:flex;justify-content:space-between;font-size:11px;color:#86907c}
.audio-panel{display:grid;grid-template-columns:132px 1fr;grid-template-rows:1fr auto;gap:24px;align-items:center;padding:clamp(28px,5vw,62px);height:100%;background:#f1f5e8}.audio-art{width:132px;height:132px;border-radius:50%;overflow:hidden;position:relative;border:6px solid #ffffff;box-shadow:0 8px 30px #38423715;background:#e0e8d7}.audio-art img{object-fit:cover;width:100%;height:100%;filter:brightness(.75)}.audio-emblem{position:absolute;inset:0;display:grid;place-items:center;color:white;font-size:59px;font-family:serif}.audio-copy h2{font-size:24px;line-height:1.25}.audio-copy p:last-child{font-size:13px;color:var(--muted);max-width:280px;margin-top:12px}.audio-panel audio{grid-column:1/-1;width:100%;height:44px;align-self:end}.notice{background:white;border:1px solid var(--line);border-radius:16px;padding:30px;color:var(--muted)}.notice.error{color:#97492f}
.lecturer-phone{display:block;text-align:center;font-size:12px;margin:10px 0;color:var(--green);text-decoration:none}
@media(min-width:1400px){.chapter-list{max-height:385px}}
@media(max-width:1160px){.lesson-grid,.support-grid{grid-template-columns:minmax(0,1fr) 280px;gap:20px}.playback-toolbar{flex-wrap:wrap}.playback-options{margin-left:auto}.page{padding:30px 28px 0}.site-header{padding:14px 28px}.chapter-card{padding:22px 14px}.transcript-card{padding:23px}.audio-panel{gap:17px;padding:28px;grid-template-columns:105px 1fr}.audio-art{width:105px;height:105px}.audio-copy h2{font-size:21px}}
@media(max-width:850px){.lesson-grid,.support-grid{grid-template-columns:1fr}.chapter-list{display:grid;grid-template-columns:1fr 1fr;max-height:320px}.chapter-card{padding:22px}.chapter-hint{margin-bottom:12px}.lesson-side-notes{display:grid;grid-template-columns:1fr 1fr;align-items:start}.lesson-heading{align-items:flex-start}.lesson-meta{padding-top:15px}.header-note{font-size:11px}.audio-panel{padding:40px;grid-template-columns:132px 1fr}.audio-art{width:132px;height:132px}.audio-copy h2{font-size:25px}}
@media(max-width:580px){.site-header{height:85px;padding:12px 18px}.brand{font-size:19px;gap:7px;letter-spacing:1.5px}.brand svg{width:24px;height:24px}.header-note{display:none}.centrum-logo{width:82px;height:60px}.page{padding:27px 15px 0}.lesson-heading{display:block;margin-bottom:22px}.lesson-meta{justify-content:flex-start;padding-top:15px;gap:15px}h1{font-size:29px;letter-spacing:-.7px}.lesson-description{font-size:13px}.eyebrow{font-size:9px}.watch-card{border-radius:14px}.playback-toolbar{padding:12px;gap:11px}.mode-switch button{font-size:11px;padding:7px 10px}.playback-options{width:100%;justify-content:space-between;margin:0}.speed-label,.subtle-button{font-size:11px}.now-playing{padding:11px 14px}.chapter-card{padding:20px 14px;border-radius:18px}.chapter-list{display:flex;max-height:285px}.chapter-button{padding:11px 9px}.chapter-hint{font-size:12px}.support-grid{margin-top:20px;gap:20px}.transcript-card{padding:21px 18px 13px;border-radius:18px}.transcript-heading{align-items:flex-start}.transcript-heading .quiet-note{max-width:100px;font-size:10px}.lesson-side-notes{grid-template-columns:1fr;gap:16px}.lecturer-card,.take-away-card{border-radius:18px;padding:22px}.audio-panel{grid-template-columns:73px 1fr;padding:20px;gap:14px}.audio-art{width:73px;height:73px;border-width:4px}.audio-emblem{font-size:39px}.audio-copy h2{font-size:17px}.audio-copy .eyebrow{font-size:8px;margin-bottom:6px}.audio-copy p:last-child{font-size:11px;margin-top:7px}.audio-panel audio{height:36px}.lesson-footer{font-size:10px}.media-stage video::cue{font-size:14px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}