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p{color:var(--text-secondary);margin:0;font-size:14px}.edu-panel-empty{text-align:center;padding:40px 20px}.edu-panel-empty h3{font-family:var(--font-headline,serif);margin:12px 0 6px;font-size:22px;font-weight:700}.edu-panel-empty p{color:var(--text-secondary);max-width:320px;margin:0 auto;font-size:14px;line-height:1.5}.edu-shelf{margin-bottom:18px}.edu-shelf__title{font-family:var(--font-ui,sans-serif);color:var(--text-dark);margin:0 0 10px;font-size:15px;font-weight:800}.edu-section-note{max-width:62ch;margin:0 0 14px}.edu-lesson-card--locked{cursor:pointer}.edu-lesson-card__lock{border-radius:var(--radius-pill);background:color-mix(in srgb, var(--bg-card) 88%, transparent);width:34px;height:34px;color:var(--text-dark);box-shadow:var(--surface-shadow);justify-content:center;align-items:center;display:inline-flex;position:absolute;inset:auto auto 10px 10px}.edu-lesson-card__lock-label{font-family:var(--font-ui,sans-serif);color:var(--text-muted);white-space:nowrap;font-size:11px;font-weight:700}.edu-lesson-card--locked .edu-lesson-card__thumb:after{content:"";background:color-mix(in srgb, var(--c-0a0a0a) 28%, transparent);position:absolute;inset:0}.edu-lesson-panel{width:100%;max-width:var(--ob-content-max,1080px);border:1px solid var(--surface-border);border-radius:var(--ob-card-radius,var(--radius-md));background:var(--bg-card);min-width:0;box-shadow:var(--surface-shadow);flex-direction:column;gap:24px;margin:0 auto;padding:24px;display:flex}.edu-lesson-panel .edu-player-frame{flex-shrink:0;width:100%;max-width:100%}.edu-academy-gate{gap:12px;max-width:56ch;display:grid}.edu-academy-gate .ob-title{margin:0}.edu-academy-gate .ob-subtitle{max-width:none;margin:0}@media (width<=768px){.edu-hub-header{align-items:stretch}.edu-tablist{width:100%}.edu-tab{text-align:center;flex:1}.edu-academy-promo{grid-template-columns:1fr}.edu-academy-promo__actions{justify-content:stretch}.edu-academy-promo__actions :global(.ui-btn){flex:auto}}@media (width>=900px){.edu-lesson-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media (width<=640px){.edu-lesson-grid{grid-template-columns:repeat(auto-fill,minmax(168px,1fr))}}