.course-nav.svelte-q22dyy{padding:1rem;min-width:250px}.nav-controls.svelte-q22dyy{display:flex;justify-content:space-between;margin-bottom:1rem;gap:.5rem}.nav-button.svelte-q22dyy{padding:.5rem 1rem;border:1px solid #ccc;border-radius:.25rem;text-decoration:none;color:inherit;font-size:.875rem;text-align:center;flex:1}.nav-button.disabled.svelte-q22dyy{opacity:.5;cursor:not-allowed}.nav-button.svelte-q22dyy:not(.disabled):hover{background:#f3f4f6}.svg-defs.svelte-imgnne{position:absolute;width:0;height:0;overflow:hidden}.lesson-page-wrapper.svelte-imgnne{min-height:100vh;background:#fef3e2;position:relative}.bg-strips-container.svelte-imgnne{position:absolute;top:0;left:0;right:0;bottom:0;z-index:0;pointer-events:none;overflow:hidden}.bg-strip.svelte-imgnne{position:absolute;left:0;right:0;pointer-events:none}.dark .lesson-page-wrapper.svelte-imgnne{background:#1a1a1a}.dark .bg-strips-container.svelte-imgnne{display:none}.lesson-page-wrapper>:global(*:not(.bg-strips-container)){position:relative;z-index:10}.main-content.svelte-imgnne{margin-top:15px}.toc-container.svelte-imgnne{padding:.25rem}.prose.svelte-imgnne{padding-top:2rem;padding-left:16px;padding-right:16px;padding-bottom:2rem}.lesson-title.svelte-imgnne{font-size:clamp(2.5rem,8vw,5rem);font-weight:200;line-height:1.1;margin-bottom:2rem;text-align:center;text-transform:capitalize;color:#1a1a1a;text-shadow:0 2px 10px rgba(0,0,0,.1)}.dark .lesson-title.svelte-imgnne{color:#e5e5e5;text-shadow:0 2px 10px rgba(0,0,0,.3)}.sidebar.svelte-imgnne{display:flex;flex-direction:column;position:relative;transition:filter .2s ease}.collapse-btn.svelte-imgnne{position:sticky;top:5px;background:#fffffff2;border:1px solid rgba(59,130,246,.3);border-radius:.5rem;padding:.5rem;cursor:pointer;z-index:10;transition:all .2s ease;display:none;margin-top:1rem;margin-bottom:.5rem;box-shadow:0 2px 8px #0000001a;width:100%}.collapse-btn.svelte-imgnne:hover{background:#3b82f640;border-color:#3b82f680;transform:scale(1.05)}.collapse-btn.svelte-imgnne:hover svg:where(.svelte-imgnne){filter:drop-shadow(0 0 2px rgba(255,255,255,1)) drop-shadow(0 0 4px rgba(255,255,255,1)) drop-shadow(0 0 6px rgba(255,255,255,.8))}.collapse-btn.svelte-imgnne svg:where(.svelte-imgnne){width:20px;height:20px;color:#3b82f6;display:block}.dark .collapse-btn.svelte-imgnne{background:#171717f2;border-color:#60a5fa4d;box-shadow:0 2px 8px #0000004d}.dark .collapse-btn.svelte-imgnne:hover{background:#1e40af4d;border-color:#60a5fa80}.dark .collapse-btn.svelte-imgnne svg:where(.svelte-imgnne){color:#60a5fa}.sidebar-scroll-content.svelte-imgnne{overflow-y:auto;overflow-x:hidden;flex:1}@media (min-width: 1400px){.sidebar.svelte-imgnne{align-self:flex-start;position:sticky;top:60px;max-height:calc(100vh - 140px);z-index:200;transition:all .3s ease;overflow:visible;filter:brightness(.85) saturate(.7);width:100%}.toc-container.svelte-imgnne{padding-bottom:2rem;width:100%}.sidebar.svelte-imgnne:hover{filter:brightness(1) saturate(1)}.sidebar-scroll-content.svelte-imgnne{max-height:calc(100vh - 180px)}.collapse-btn.svelte-imgnne{display:flex;align-items:center;justify-content:center;flex-shrink:0}.sidebar.collapsed.svelte-imgnne{min-width:48px;max-width:48px;padding:.25rem;overflow:visible}.sidebar.collapsed.svelte-imgnne .collapse-btn:where(.svelte-imgnne){margin:0}.sidebar[slot=left].collapsed.svelte-imgnne{display:flex;justify-content:flex-end;margin-left:auto}.sidebar[slot=right].collapsed.svelte-imgnne{display:flex;justify-content:flex-start}}@media (min-width: 1400px){.prose.svelte-imgnne{padding-top:2rem;padding-left:96px;padding-right:96px;padding-bottom:2rem}.lesson-title.svelte-imgnne{font-size:3rem}}