.editor-wrapper.svelte-c4vs74{border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden;font-size:.9rem;-webkit-touch-callout:none}.editor-wrapper.svelte-c4vs74 .cm-editor{min-height:200px;max-height:60vh}.editor-wrapper.svelte-c4vs74 .cm-scroller{overflow:auto}.editor-loading.svelte-c4vs74{min-height:200px;display:flex;align-items:center;justify-content:center;color:var(--color-text-muted);font-size:.85rem;background:var(--color-bg-secondary)}.editor-wrapper.no-paste.svelte-c4vs74 .cm-content{-webkit-touch-callout:none}@media(max-width:768px){.editor-wrapper.svelte-c4vs74 .cm-editor{min-height:150px;max-height:50vh}}.output-panel.svelte-tlcb2t{border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden;font-family:var(--font-mono)}.output-header.svelte-tlcb2t{display:flex;align-items:center;justify-content:space-between;padding:.5rem .75rem;background:var(--color-bg-secondary);border-bottom:1px solid var(--color-border);font-size:.8rem;font-family:system-ui,sans-serif}.output-title.svelte-tlcb2t{font-weight:600}.status-badge.svelte-tlcb2t{padding:.15rem .5rem;border-radius:999px;font-size:.7rem;font-weight:600}.status-badge.running.svelte-tlcb2t{background:var(--color-warning);color:#000}.status-badge.success.svelte-tlcb2t{background:var(--color-success);color:#fff}.status-badge.error.svelte-tlcb2t{background:var(--color-danger);color:#fff}.output-body.svelte-tlcb2t{padding:.75rem;margin:0;min-height:80px;max-height:300px;overflow:auto;font-size:.85rem;white-space:pre-wrap;word-break:break-word;background:var(--color-bg);color:var(--color-text)}.has-error.svelte-tlcb2t .output-body:where(.svelte-tlcb2t){color:var(--color-danger)}.has-success.svelte-tlcb2t .output-body:where(.svelte-tlcb2t){color:var(--color-success)}.placeholder.svelte-tlcb2t{color:var(--color-text-muted);font-style:italic}.badge.svelte-1d424mm{display:inline-flex;align-items:center;gap:.25rem;padding:.2rem .6rem;border-radius:999px;font-size:.75rem;font-weight:600}.done.svelte-1d424mm{background:var(--color-success);color:#fff}.pending.svelte-1d424mm{background:var(--color-bg-secondary);color:var(--color-text-muted);border:1px solid var(--color-border)}.lesson-nav.svelte-cbteub{display:flex;align-items:center;justify-content:space-between;margin-bottom:.5rem;font-size:.85rem}.lesson-title.svelte-cbteub{font-size:1.5rem;margin-bottom:1rem}.lesson-info.svelte-cbteub{margin-bottom:1rem;border:1px solid var(--color-border);border-radius:var(--radius);padding:.75rem;background:var(--color-bg-secondary)}.lesson-info.svelte-cbteub summary:where(.svelte-cbteub){cursor:pointer;font-weight:600;font-size:.9rem}.info-content.svelte-cbteub{margin-top:.75rem;font-size:.85rem}.lesson-layout.svelte-cbteub{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;align-items:start}.lesson-content.svelte-cbteub{overflow-y:auto;max-height:80vh;padding-right:.5rem;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.lesson-info.svelte-cbteub{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.prose.svelte-cbteub pre{background:var(--color-bg-secondary);padding:.75rem;border-radius:var(--radius);overflow-x:auto}.prose.svelte-cbteub code{font-family:var(--font-mono);font-size:.85rem}.prose.svelte-cbteub p{margin-bottom:.75rem}.prose.svelte-cbteub h2,.prose.svelte-cbteub h3{margin-top:1.25rem;margin-bottom:.5rem}.exercise-section.svelte-cbteub{margin-top:1.5rem;padding-top:1rem;border-top:2px solid var(--color-primary)}.exercise-section.svelte-cbteub h2:where(.svelte-cbteub){color:var(--color-primary);font-size:1.1rem}.editor-area.svelte-cbteub{position:sticky;top:4rem}.lesson-layout.single-col.svelte-cbteub{grid-template-columns:1fr}.lesson-content.full-width.svelte-cbteub{max-height:none;padding-right:0;padding-bottom:60px}.toolbar.svelte-cbteub{display:flex;align-items:center;gap:.5rem;margin-bottom:.5rem;flex-wrap:wrap}.btn-secondary.svelte-cbteub{background:var(--color-bg-secondary);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary.svelte-cbteub:hover{background:var(--color-border)}.lang-label.svelte-cbteub{margin-left:auto;font-size:.75rem;color:var(--color-text-muted);font-weight:600;text-transform:uppercase}.panel.svelte-cbteub{margin-bottom:.75rem}.expected-output.svelte-cbteub{font-size:.8rem;color:var(--color-text-muted)}.expected-output.svelte-cbteub pre:where(.svelte-cbteub){background:var(--color-bg-secondary);padding:.5rem;border-radius:var(--radius);margin-top:.5rem}.float-restore-btn.svelte-cbteub{position:fixed;bottom:1rem;right:1rem;z-index:50;background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius);padding:.6rem 1rem;font-size:.85rem;font-weight:600;cursor:pointer;box-shadow:0 4px 16px #0003;transition:background .15s,transform .1s}.float-restore-btn.svelte-cbteub:hover{background:var(--color-primary-dark)}.float-restore-btn.svelte-cbteub:active{transform:scale(.95)}.btn-float-toggle.svelte-cbteub{background:none;border:1px solid var(--color-border);border-radius:4px;padding:.2rem .5rem;cursor:pointer;font-size:.95rem;color:var(--color-text-muted);line-height:1}.btn-float-toggle.svelte-cbteub:hover{background:var(--color-bg-secondary);color:var(--color-text)}.panel-header.svelte-cbteub{display:flex;align-items:center;gap:.5rem;padding:.5rem .75rem;background:var(--color-bg-secondary);border-bottom:1px solid var(--color-border);-webkit-user-select:none;user-select:none;cursor:default;flex-wrap:wrap}.panel-header.draggable.svelte-cbteub{cursor:grab}.panel-header.draggable.svelte-cbteub:active{cursor:grabbing}.panel-title.svelte-cbteub{font-size:.85rem;font-weight:600;flex:1}.panel-actions.svelte-cbteub{display:flex;gap:.25rem}.panel-btn.svelte-cbteub{background:none;border:1px solid var(--color-border);border-radius:4px;padding:.15rem .5rem;cursor:pointer;font-size:.8rem;color:var(--color-text);line-height:1}.panel-btn.svelte-cbteub:hover{background:var(--color-border)}.editor-area.floating.svelte-cbteub{position:fixed;bottom:1rem;right:1rem;top:auto;width:45vw;min-width:320px;max-width:90vw;max-height:85vh;z-index:50;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:0 8px 32px #0000002e;display:flex;flex-direction:column;overflow:auto}.resize-handle.svelte-cbteub{cursor:nwse-resize;font-size:.9rem;color:var(--color-text-muted);line-height:1;padding:.1rem .3rem;border-radius:3px}.resize-handle.svelte-cbteub:hover{background:var(--color-border);color:var(--color-text)}.editor-area.floating.svelte-cbteub .editor-body:where(.svelte-cbteub){flex:1;overflow-y:auto;padding:.5rem;min-height:0}.editor-area.floating-hidden.svelte-cbteub{display:none!important}.editor-area.mobile-sheet.svelte-cbteub{position:fixed;bottom:0;left:0;right:0;top:auto;z-index:50;background:var(--color-bg);border-top:2px solid var(--color-primary);border-radius:12px 12px 0 0;box-shadow:0 -4px 20px #00000026;max-height:70vh;display:flex;flex-direction:column;transition:transform .3s ease}.editor-area.mobile-collapsed.svelte-cbteub{transform:translateY(calc(100% - 48px))}.mobile-sheet.svelte-cbteub .editor-body:where(.svelte-cbteub){flex:1;overflow-y:auto;padding:.5rem;overscroll-behavior:contain}.sheet-handle.svelte-cbteub{flex-direction:column;border:none;border-bottom:1px solid var(--color-border);cursor:pointer;width:100%;color:inherit;font:inherit;text-align:center}.sheet-handle-bar.svelte-cbteub{width:36px;height:4px;background:var(--color-border);border-radius:2px;margin:0 auto .25rem}.mobile-tabs.svelte-cbteub{display:flex;gap:0;margin-bottom:.5rem;border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden}.tab.svelte-cbteub{flex:1;padding:.5rem;border:none;background:var(--color-bg-secondary);cursor:pointer;font-weight:500;font-size:.85rem}.tab.active.svelte-cbteub{background:var(--color-primary);color:#fff}.hidden-mobile.svelte-cbteub,.editor-body.body-hidden.svelte-cbteub{display:none}.lesson-footer-nav.svelte-cbteub{display:flex;justify-content:space-between;margin-top:2rem;padding-top:1rem;border-top:1px solid var(--color-border)}.celebration-overlay.svelte-cbteub{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;display:flex;align-items:center;justify-content:center;background:#0006;animation:svelte-cbteub-celebFadeIn .3s ease-out;pointer-events:none}.celebration-content.svelte-cbteub{text-align:center;animation:svelte-cbteub-celebPop .4s cubic-bezier(.34,1.56,.64,1)}.celebration-icon.svelte-cbteub{width:80px;height:80px;margin:0 auto 1rem;background:var(--color-success);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:2.5rem;font-weight:700;box-shadow:0 0 #19875466;animation:svelte-cbteub-celebRing 1.5s ease-out}.celebration-text.svelte-cbteub{font-size:1.4rem;font-weight:700;color:#fff;text-shadow:0 2px 8px rgba(0,0,0,.3)}@keyframes svelte-cbteub-celebFadeIn{0%{opacity:0}to{opacity:1}}@keyframes svelte-cbteub-celebPop{0%{transform:scale(.5);opacity:0}to{transform:scale(1);opacity:1}}@keyframes svelte-cbteub-celebRing{0%{box-shadow:0 0 #19875499}70%{box-shadow:0 0 0 30px #19875400}to{box-shadow:0 0 #19875400}}