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cubic-bezier(.34,1.56,.64,1);z-index:9999;transform:scale(.95)}.lesson-block-inserter__popover--open{opacity:1;pointer-events:auto;transform:scale(1)}.lesson-block-inserter__group{display:flex;align-items:center;gap:0;border-right:1px solid var(--color-border)}.lesson-block-inserter__group:last-child{border-right:none}.lesson-block-inserter__action{display:inline-flex;align-items:center;justify-content:center;min-width:2.25rem;height:2.25rem;border:1px solid transparent;border-radius:0;background:transparent;color:var(--color-text-secondary);font:inherit;font-size:.8125rem;font-weight:600;line-height:1;cursor:pointer;transition:background .15s ease,color .15s ease}.lesson-block-inserter__action:hover{background:var(--color-bg-tertiary);color:var(--color-text-primary)}.inserter-text-btn{font-size:.75rem;font-weight:700}.inserter-heading-dropdown{position:relative}.inserter-heading-dropdown__trigger{gap:.2rem}.inserter-heading-dropdown__menu{position:absolute;bottom:100%;left:0;margin-bottom:4px;min-width:130px;padding:4px;border-radius:8px;border:1px solid var(--color-border);background:var(--color-bg-elevated, var(--color-bg-secondary));box-shadow:0 8px 24px #00000024;z-index:10000;opacity:0;pointer-events:none;transform:translateY(4px);transition:opacity .15s ease,transform .15s ease}.inserter-heading-dropdown__menu--open{opacity:1;pointer-events:auto;transform:translateY(0)}.inserter-heading-dropdown__item{display:block;width:100%;padding:.35rem .625rem;border:none;border-radius:5px;background:transparent;color:var(--color-text-primary);font-family:inherit;font-weight:500;font-size:.8125rem;text-align:left;cursor:pointer;transition:background .15s}.inserter-heading-dropdown__item:hover{background:color-mix(in srgb,var(--color-primary) 10%,transparent);color:var(--color-primary)}.inserter-heading-dropdown__item--h1{font-size:1.1rem;font-weight:700}.inserter-heading-dropdown__item--h2{font-size:1rem;font-weight:700}.inserter-heading-dropdown__item--h3{font-size:.875rem;font-weight:600}.inserter-heading-dropdown__item--h4{font-size:.8125rem;font-weight:600}app-root{display:block;height:100%}