.app.svelte-1wzbxth{display:flex;height:100vh;overflow:hidden;background:#f4f4f9;color:#1a1a2e;font-family:-apple-system,Inter,Segoe UI,sans-serif;transition:background .3s,color .3s}.app.dark.svelte-1wzbxth{background:#09090f;color:#e4e4f0}.sidebar.svelte-1wzbxth{width:272px;min-width:272px;background:#fff;border-right:1px solid #e8e8f2;display:flex;flex-direction:column;overflow-y:auto;transition:background .3s,border-color .3s}.dark.svelte-1wzbxth .sidebar:where(.svelte-1wzbxth){background:#0e0e1a;border-right-color:#ffffff0f}.sidebar.svelte-1wzbxth::-webkit-scrollbar{width:3px}.sidebar.svelte-1wzbxth::-webkit-scrollbar-thumb{background:#e0e0f0;border-radius:2px}.dark.svelte-1wzbxth .sidebar:where(.svelte-1wzbxth)::-webkit-scrollbar-thumb{background:#ffffff14}.sidebar-head.svelte-1wzbxth{padding:16px 18px 12px;border-bottom:1px solid #f0f0f8}.dark.svelte-1wzbxth .sidebar-head:where(.svelte-1wzbxth){border-bottom-color:#ffffff0d}.back-link.svelte-1wzbxth{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:500;color:#aaa;text-decoration:none;transition:color .2s}.back-link.svelte-1wzbxth:hover{color:#333}.dark.svelte-1wzbxth .back-link:where(.svelte-1wzbxth):hover{color:#eee}.course-pill.svelte-1wzbxth{display:flex;align-items:center;gap:10px;padding:12px 18px;border-bottom:1px solid #f0f0f8}.dark.svelte-1wzbxth .course-pill:where(.svelte-1wzbxth){border-bottom-color:#ffffff0d}.course-emoji.svelte-1wzbxth{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}.course-title.svelte-1wzbxth{font-size:12px;font-weight:700;color:#1a1a2e;margin:0 0 2px}.dark.svelte-1wzbxth .course-title:where(.svelte-1wzbxth){color:#e4e4f0}.course-sub.svelte-1wzbxth{font-size:10px;color:#aaa;margin:0}.progress-area.svelte-1wzbxth{padding:12px 18px;border-bottom:1px solid #f0f0f8}.dark.svelte-1wzbxth .progress-area:where(.svelte-1wzbxth){border-bottom-color:#ffffff0d}.progress-row.svelte-1wzbxth{display:flex;justify-content:space-between;margin-bottom:6px}.progress-label.svelte-1wzbxth{font-size:10px;font-weight:700;letter-spacing:.08em;color:#ccc;text-transform:uppercase}.progress-num.svelte-1wzbxth{font-size:12px;font-weight:800}.progress-bar.svelte-1wzbxth{height:4px;background:#f0f0f8;border-radius:4px;overflow:hidden}.dark.svelte-1wzbxth .progress-bar:where(.svelte-1wzbxth){background:#ffffff0f}.progress-fill.svelte-1wzbxth{height:100%;border-radius:4px;transition:width .6s cubic-bezier(.4,0,.2,1)}.prev-next-nav.svelte-1wzbxth{display:flex;gap:6px;padding:10px 12px;border-bottom:1px solid #f0f0f8}.dark.svelte-1wzbxth .prev-next-nav:where(.svelte-1wzbxth){border-bottom-color:#ffffff0d}.nav-btn.svelte-1wzbxth{flex:1;display:flex;align-items:center;justify-content:center;gap:5px;padding:7px 6px;font-size:11px;font-weight:600;color:#fff9;background:#ffffff0f;border:1px solid rgba(255,255,255,.1);border-radius:8px;cursor:pointer;transition:all .18s}.nav-btn.svelte-1wzbxth:not(:disabled):hover{background:#ffffff1c;color:#ffffffe6;border-color:#fff3}.nav-btn.svelte-1wzbxth:disabled{opacity:.25;cursor:default}.app:not(.dark) .nav-btn.svelte-1wzbxth{color:#00000073;background:#0000000a;border-color:#0000001a}.app:not(.dark) .nav-btn.svelte-1wzbxth:not(:disabled):hover{background:#00000014;color:#000000bf}.lessons-area.svelte-1wzbxth{padding:14px 10px;flex:1}.lessons-label.svelte-1wzbxth{font-size:9px;font-weight:800;letter-spacing:.16em;color:#ccc;text-transform:uppercase;margin:0 0 8px 8px}.lessons-list.svelte-1wzbxth{position:relative}.spring-indicator.svelte-1wzbxth{position:absolute;left:0;right:0;height:44px;border-radius:10px;border:1px solid;transition:none;pointer-events:none;z-index:0}.lesson-row.svelte-1wzbxth{position:relative;z-index:1;width:100%;display:flex;align-items:center;gap:10px;padding:10px 8px;border-radius:10px;border:none;background:none;cursor:pointer;text-align:left;height:48px;box-sizing:border-box}.lesson-circle.svelte-1wzbxth{width:24px;height:24px;border-radius:50%;background:#f0f0f8;color:#bbb;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:700;flex-shrink:0;transition:all .3s}.dark.svelte-1wzbxth .lesson-circle:where(.svelte-1wzbxth){background:#ffffff12;color:#666}.lesson-row.is-draft.svelte-1wzbxth{opacity:.45}.lesson-row.is-draft.svelte-1wzbxth:hover{opacity:.7}.draft-badge.svelte-1wzbxth{margin-left:auto;font-size:9px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#f59e0b;background:#f59e0b1f;border:1px solid rgba(245,158,11,.25);border-radius:5px;padding:2px 6px;flex-shrink:0}.lesson-name.svelte-1wzbxth{font-size:11px;font-weight:600;color:#3a3a5e;line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:188px}.dark.svelte-1wzbxth .lesson-name:where(.svelte-1wzbxth){color:#b0b0d0}.lesson-row.active.svelte-1wzbxth .lesson-name:where(.svelte-1wzbxth){font-weight:700}.content.svelte-1wzbxth{flex:1;overflow-y:auto;overflow-x:hidden;scroll-behavior:smooth}.content.svelte-1wzbxth::-webkit-scrollbar{width:5px}.content.svelte-1wzbxth::-webkit-scrollbar-thumb{background:#ddd;border-radius:4px}.dark.svelte-1wzbxth .content:where(.svelte-1wzbxth)::-webkit-scrollbar-thumb{background:#ffffff14}.edit-bar.svelte-1wzbxth{display:flex;align-items:center;justify-content:space-between;padding:8px 48px;font-size:11px;font-weight:500;background:#f8f8fd;border-bottom:1px solid #ebebf5;color:#bbb;transition:background .3s}.edit-bar.active.svelte-1wzbxth{background:#fffbeb;border-bottom-color:#fde68a;color:#92400e}.dark.svelte-1wzbxth .edit-bar:where(.svelte-1wzbxth){background:#ffffff05;border-bottom-color:#ffffff0d;color:#555}.dark.svelte-1wzbxth .edit-bar.active:where(.svelte-1wzbxth){background:#fbbf240f;border-bottom-color:#fbbf2426;color:#f59e0b}.edit-bar.svelte-1wzbxth span:where(.svelte-1wzbxth){display:flex;align-items:center;gap:6px}.edit-bar.svelte-1wzbxth button:where(.svelte-1wzbxth){font-size:11px;font-weight:700;padding:3px 12px;border-radius:6px;border:1.5px solid currentColor;background:none;cursor:pointer;color:inherit;opacity:.65;transition:opacity .15s}.edit-bar.svelte-1wzbxth button:where(.svelte-1wzbxth):hover{opacity:1}.lesson-body.svelte-1wzbxth{padding-bottom:80px}.lesson-hero.svelte-1wzbxth{max-width:760px;margin:0 auto;padding:44px 48px 32px}.lesson-badge.svelte-1wzbxth{display:inline-block;font-size:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;padding:5px 14px;border-radius:20px;margin-bottom:18px}.lesson-h1.svelte-1wzbxth{font-size:clamp(26px,4vw,40px);font-weight:900;letter-spacing:-.03em;line-height:1.15;margin:0 0 20px;color:#0a0a18}.dark.svelte-1wzbxth .lesson-h1:where(.svelte-1wzbxth){color:#f0f0ff}.hero-line.svelte-1wzbxth{height:3px;width:60px;border-radius:3px}.sections-tape.svelte-1wzbxth{max-width:760px;margin:0 auto;padding:8px 48px 0;display:flex;flex-direction:column;gap:32px}.sec-label.svelte-1wzbxth{font-size:9px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:#c4c4d8;margin:0 0 10px}.dark.svelte-1wzbxth .sec-label:where(.svelte-1wzbxth){color:#fff3}.text-block.svelte-1wzbxth{background:#fff;border:1.5px solid #ebebf5;border-radius:14px;padding:20px 24px;transition:border-color .2s,box-shadow .2s,background .3s}.dark.svelte-1wzbxth .text-block:where(.svelte-1wzbxth){background:#ffffff08;border-color:#ffffff12}.text-block.editable.svelte-1wzbxth{cursor:text}.text-block.editable.svelte-1wzbxth:hover{border-color:#a78bfa;box-shadow:0 0 0 3px #a78bfa1a}.dark.svelte-1wzbxth .text-block.editable:where(.svelte-1wzbxth):hover{border-color:#7c4de880}.pencil-hint.svelte-1wzbxth{font-size:12px;margin-right:8px;opacity:.35}.text-body.svelte-1wzbxth{font-size:15px;line-height:1.85;color:#2a2a42;margin:0}.dark.svelte-1wzbxth .text-body:where(.svelte-1wzbxth){color:#b8b8d8}.text-editor.svelte-1wzbxth{width:100%;font-size:15px;line-height:1.85;font-family:inherit;color:#2a2a42;background:#fafafe;border:1.5px solid #a78bfa;border-radius:8px;padding:12px 14px;resize:vertical;outline:none;box-shadow:0 0 0 4px #a78bfa1f}.dark.svelte-1wzbxth .text-editor:where(.svelte-1wzbxth){background:#18182e;color:#c0c0e0}.img-wrap.svelte-1wzbxth{border-radius:16px;overflow:hidden;cursor:zoom-in;position:relative}.lesson-img.svelte-1wzbxth{width:100%;height:auto;display:block;border-radius:16px}.img-hover-overlay.svelte-1wzbxth{position:absolute;top:0;right:0;bottom:0;left:0;background:#0000;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:#fff;font-size:12px;font-weight:600;opacity:0;transition:opacity .25s,background .25s;pointer-events:none}.img-wrap.svelte-1wzbxth:hover .img-hover-overlay:where(.svelte-1wzbxth){opacity:1;background:#00000059}.img-caption.svelte-1wzbxth{font-size:11px;color:#bbb;text-align:center;padding:8px 12px 0;margin:0;font-style:italic}.replace-img-btn.svelte-1wzbxth{display:inline-flex;align-items:center;gap:6px;margin-top:8px;font-size:11px;font-weight:600;color:#888;background:#f5f5fc;border:1.5px dashed #d0d0e8;border-radius:8px;padding:6px 14px;cursor:pointer;transition:all .2s}.replace-img-btn.svelte-1wzbxth:hover{border-color:#a78bfa;color:#7c3aed;background:#f5f0ff}.dark.svelte-1wzbxth .replace-img-btn:where(.svelte-1wzbxth){background:#ffffff0a;border-color:#ffffff1f;color:#888}.dark.svelte-1wzbxth .replace-img-btn:where(.svelte-1wzbxth):hover{border-color:#a78bfa;color:#a78bfa}.code-block.svelte-1wzbxth{border-radius:14px;overflow:hidden;border:1px solid rgba(255,255,255,.06)}.code-bar.svelte-1wzbxth{display:flex;align-items:center;gap:10px;padding:10px 18px;background:#1c1c2e}.mac-dots.svelte-1wzbxth{display:flex;gap:5px}.d.svelte-1wzbxth{width:11px;height:11px;border-radius:50%}.d.red.svelte-1wzbxth{background:#ff5f57}.d.yel.svelte-1wzbxth{background:#febc2e}.d.grn.svelte-1wzbxth{background:#28c840}.code-lang-badge.svelte-1wzbxth{font-size:10px;font-weight:800;letter-spacing:.1em;color:#fff3;margin-left:6px}.copy-code-btn.svelte-1wzbxth{margin-left:auto;font-size:11px;font-weight:600;color:#ffffff59;background:none;border:1px solid rgba(255,255,255,.1);border-radius:6px;padding:4px 12px;cursor:pointer;transition:all .15s}.copy-code-btn.svelte-1wzbxth:hover{color:#fff;border-color:#ffffff4d}.code-pre.svelte-1wzbxth{margin:0;padding:22px;font-family:Fira Code,Cascadia Code,Courier New,monospace;font-size:13px;line-height:1.7;color:#9ae6b4;overflow-x:auto;white-space:pre;background:#13131f}.lesson-switcher.svelte-1wzbxth{max-width:760px;margin:0 auto;padding:48px 48px 0;display:grid;grid-template-columns:1fr 1fr;gap:16px}.switch-btn.svelte-1wzbxth{display:flex;flex-direction:column;gap:4px;padding:18px 20px;border-radius:14px;border:1.5px solid #e8e8f2;background:#fff;cursor:pointer;text-align:left;transition:all .22s}.switch-btn.svelte-1wzbxth:hover{border-color:#c0b8f0;box-shadow:0 4px 18px #7c4de81a;transform:translateY(-2px)}.dark.svelte-1wzbxth .switch-btn:where(.svelte-1wzbxth){background:#ffffff08;border-color:#ffffff14}.dark.svelte-1wzbxth .switch-btn:where(.svelte-1wzbxth):hover{border-color:#a78bfa66;box-shadow:0 4px 20px #7c4de81f}.switch-btn.next.svelte-1wzbxth{text-align:right}.switch-num.svelte-1wzbxth{font-size:11px;font-weight:800;letter-spacing:.06em;color:#aaa;text-transform:uppercase}.switch-name.svelte-1wzbxth{font-size:13px;font-weight:700;color:#2a2a42;line-height:1.3}.dark.svelte-1wzbxth .switch-name:where(.svelte-1wzbxth){color:#c0c0e0}.finish-card.svelte-1wzbxth{grid-column:2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:20px;border-radius:14px;border:1.5px solid;text-align:center}.lightbox.svelte-1wzbxth{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000eb;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:9999;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;cursor:zoom-out}.lb-img.svelte-1wzbxth{max-width:92vw;max-height:88vh;border-radius:12px;-o-object-fit:contain;object-fit:contain;box-shadow:0 40px 120px #000c;cursor:zoom-out;-webkit-user-select:none;-moz-user-select:none;user-select:none}.lb-hint.svelte-1wzbxth{margin-top:16px;font-size:12px;color:#ffffff4d;font-weight:500}.mob-topbar.svelte-1wzbxth,.mob-overlay.svelte-1wzbxth,.mob-drawer.svelte-1wzbxth,.mob-bottom.svelte-1wzbxth{display:none}@media(max-width:768px){.app.svelte-1wzbxth{flex-direction:column;height:100vh;overflow:hidden}.sidebar.svelte-1wzbxth{display:none}.content.svelte-1wzbxth{flex:1;overflow-y:auto;padding-bottom:80px}.mob-topbar.svelte-1wzbxth{display:flex;align-items:center;gap:10px;padding:10px 14px;background:#fff;border-bottom:1px solid #e8e8f2;z-index:100;flex-shrink:0}.dark.svelte-1wzbxth .mob-topbar:where(.svelte-1wzbxth){background:#0e0e1a;border-bottom-color:#ffffff12}.mob-back.svelte-1wzbxth{display:flex;align-items:center;color:#aaa;text-decoration:none;padding:6px;border-radius:8px;transition:background .15s;flex-shrink:0}.mob-back.svelte-1wzbxth:hover{background:#0000000d}.dark.svelte-1wzbxth .mob-back:where(.svelte-1wzbxth):hover{background:#ffffff12}.mob-lesson-info.svelte-1wzbxth{flex:1;min-width:0;display:flex;flex-direction:column}.mob-lesson-num.svelte-1wzbxth{font-size:10px;font-weight:700;letter-spacing:.08em;color:#aaa;text-transform:uppercase}.mob-lesson-title.svelte-1wzbxth{font-size:13px;font-weight:700;color:#1a1a2e;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.dark.svelte-1wzbxth .mob-lesson-title:where(.svelte-1wzbxth){color:#e4e4f0}.mob-menu-btn.svelte-1wzbxth{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;border:none;background:#0000000d;color:#555;cursor:pointer;flex-shrink:0;transition:background .15s}.dark.svelte-1wzbxth .mob-menu-btn:where(.svelte-1wzbxth){background:#ffffff14;color:#aaa}.mob-menu-btn.svelte-1wzbxth:hover{background:#0000001a}.mob-overlay.svelte-1wzbxth{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:200}.mob-drawer.svelte-1wzbxth{display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;width:280px;background:#fff;z-index:201;overflow-y:auto}.dark.svelte-1wzbxth .mob-drawer:where(.svelte-1wzbxth){background:#0e0e1a}.mob-bottom.svelte-1wzbxth{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px;background:#fff;border-top:1px solid #e8e8f2;position:fixed;bottom:0;left:0;right:0;z-index:100}.dark.svelte-1wzbxth .mob-bottom:where(.svelte-1wzbxth){background:#0e0e1a;border-top-color:#ffffff12}.mob-nav-btn.svelte-1wzbxth{display:flex;align-items:center;gap:6px;padding:9px 16px;border-radius:10px;border:1.5px solid #e0e0f0;background:none;font-size:13px;font-weight:600;color:#555;cursor:pointer;transition:all .18s;flex-shrink:0}.dark.svelte-1wzbxth .mob-nav-btn:where(.svelte-1wzbxth){border-color:#ffffff1a;color:#888}.mob-nav-btn.svelte-1wzbxth:not(:disabled):hover{background:#f5f0ff;border-color:#a78bfa;color:#7c3aed}.mob-nav-btn.svelte-1wzbxth:disabled{opacity:.25;cursor:default}.mob-dots.svelte-1wzbxth{display:flex;gap:5px;align-items:center;flex-wrap:wrap;justify-content:center}.mob-dot.svelte-1wzbxth{width:7px;height:7px;border-radius:50%;background:#ddd;border:none;cursor:pointer;transition:all .2s;padding:0}.dark.svelte-1wzbxth .mob-dot:where(.svelte-1wzbxth){background:#ffffff26}.mob-dot.active.svelte-1wzbxth{width:20px;border-radius:4px}.lesson-hero.svelte-1wzbxth,.sections-tape.svelte-1wzbxth,.lesson-switcher.svelte-1wzbxth,.edit-bar.svelte-1wzbxth{padding-left:18px;padding-right:18px}.lesson-hero.svelte-1wzbxth{padding-top:24px}.lesson-switcher.svelte-1wzbxth{grid-template-columns:1fr;padding-top:24px}}