@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap";:root{--brand-primary:#6366f1;--brand-secondary:#4f46e5;--brand-accent:#818cf8;--brand-glow:#6366f126;--bg-workspace:#fafafa;--bg-activity-bar:#f3f4f6;--bg-sidebar:#fff;--bg-editor:#fff;--bg-card:#fff;--bg-card-hover:#00000005;--border-subtle:#e5e7eb;--border-accent:#6366f1;--text-primary:#111827;--text-muted:#6b7280;--status-bar-bg:#f3f4f6;--overlay-bg:#0000000d;--overlay-bg-hover:#00000014;--surface-raised:#fff;--surface-sunken:#f9fafb;--tooltip-bg:#111827;--tooltip-text:#fff;--badge-bg:#ef4444;--danger:#ef4444;--success:#10b981;--warning:#f59e0b;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-full:9999px;--shadow-xs:0 1px 2px 0 #0000000d;--shadow-sm:0 1px 3px 0 #0000001a, 0 1px 2px -1px #0000001a;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--shadow-glow:0 0 15px #6366f14d;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-6:24px;--space-8:32px;--space-12:48px;--text-xs:.75rem;--text-sm:.875rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:1.875rem;--z-sidebar:100;--z-overlay:200;--z-modal:300;--z-toast:400;--transition-fast:all .15s cubic-bezier(.4, 0, .2, 1);--transition-base:all .2s cubic-bezier(.4, 0, .2, 1);--transition-slow:all .3s cubic-bezier(.4, 0, .2, 1);--ease-spring:cubic-bezier(.175, .885, .32, 1.275);--transition:var(--transition-base);--primary:var(--brand-primary);--secondary:var(--brand-secondary);--accent:var(--brand-accent);--bg-main:var(--bg-editor);--bg-secondary:var(--bg-workspace);--bg-tertiary:var(--bg-sidebar);--text-main:var(--text-primary);--glass-bg:var(--bg-card);--glass-card-bg:var(--bg-card);--glass-border:var(--border-subtle);--glass-border-hover:var(--border-accent);--glass-shadow:var(--shadow-sm);--card-shadow:var(--shadow-md);--dropdown-shadow:var(--shadow-lg);--gradient-glow1:var(--brand-glow)}[data-theme=dark]{--brand-primary:#818cf8;--brand-secondary:#6366f1;--brand-accent:#a5b4fc;--brand-glow:#818cf826;--bg-workspace:#0a0a0a;--bg-activity-bar:#111;--bg-sidebar:#0a0a0a;--bg-editor:#0a0a0a;--bg-card:#111;--bg-card-hover:#ffffff0a;--border-subtle:#27272a;--border-accent:#3f3f46;--text-primary:#fafafa;--text-muted:#a1a1aa;--status-bar-bg:#111;--overlay-bg:#ffffff0d;--overlay-bg-hover:#ffffff1a;--surface-raised:#18181b;--surface-sunken:#000;--tooltip-bg:#fafafa;--tooltip-text:#000;--badge-bg:#f87171;--shadow-xs:0 1px 2px 0 #00000080;--shadow-sm:0 1px 3px 0 #0009, 0 1px 2px -1px #00000080;--shadow-md:0 4px 6px -1px #0009, 0 2px 4px -2px #00000080;--shadow-lg:0 10px 15px -3px #000000b3, 0 4px 6px -4px #0009;--shadow-glow:0 0 15px #818cf833;--danger:#f87171;--success:#34d399;--warning:#fbbf24;--primary:var(--brand-primary);--secondary:var(--brand-secondary);--accent:var(--brand-accent);--bg-main:var(--bg-editor);--bg-secondary:var(--bg-workspace);--bg-tertiary:var(--bg-sidebar);--text-main:var(--text-primary);--glass-bg:var(--bg-card);--glass-card-bg:var(--bg-card);--glass-border:var(--border-subtle);--glass-border-hover:var(--brand-primary);--glass-shadow:var(--shadow-sm);--card-shadow:var(--shadow-md);--dropdown-shadow:var(--shadow-lg);--gradient-glow1:var(--brand-glow)}*{box-sizing:border-box;margin:0;padding:0;transition:background-color .2s,border-color .2s,color .2s,box-shadow .2s}html,body{width:100%;height:100%}a{color:inherit;text-decoration:none}body{background-color:var(--bg-workspace);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-display:swap;font-family:Inter,sans-serif;overflow-x:hidden}h1,h2,h3,h4,.heading{letter-spacing:-.03em;font-family:Inter,sans-serif}code,pre,.font-mono{font-family:JetBrains Mono,monospace}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-subtle);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.card,.glass-card,.glass{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:var(--transition-base);overflow:hidden}.card:hover,.glass-card:hover,.card-hover:hover{border-color:var(--border-accent);box-shadow:var(--shadow-md);transform:translateY(-2px)}.btn{justify-content:center;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);border-radius:var(--radius-md);font-weight:500;font-size:var(--text-sm);cursor:pointer;transition:var(--transition-fast);white-space:nowrap;-webkit-user-select:none;user-select:none;border:1px solid #0000;outline:none;font-family:Inter,sans-serif;display:inline-flex}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.6;cursor:not-allowed;pointer-events:none}.btn-primary{background:var(--brand-primary);color:#fff}.btn-primary:hover{background:var(--brand-secondary);box-shadow:var(--shadow-glow);color:#fff}.btn-secondary{background:var(--overlay-bg);color:var(--text-primary);border:1px solid var(--border-subtle)}.btn-secondary:hover{background:var(--overlay-bg-hover);border-color:var(--brand-primary)}.btn-ghost{color:var(--text-primary);background:0 0}.btn-ghost:hover{background:var(--overlay-bg)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{filter:brightness(1.1);box-shadow:0 0 15px #ef44444d}.btn-sm{font-size:var(--text-xs);border-radius:var(--radius-sm);padding:6px 12px}.btn-lg{font-size:var(--text-base);border-radius:var(--radius-lg);padding:12px 24px}.badge{border-radius:var(--radius-full);text-transform:uppercase;letter-spacing:.05em;background:var(--overlay-bg);color:var(--text-primary);align-items:center;padding:2px 8px;font-size:11px;font-weight:600;display:inline-flex}.badge-success{color:var(--success);background:#10b98126}.badge-warning{color:var(--warning);background:#f59e0b26}.badge-danger{color:var(--danger);background:#ef444426}.badge-primary{background:var(--brand-glow);color:var(--brand-primary)}.skeleton{background:linear-gradient(90deg, var(--overlay-bg) 25%, var(--overlay-bg-hover) 50%, var(--overlay-bg) 75%);border-radius:var(--radius-sm);background-size:400% 100%;animation:1.5s linear infinite shimmer}.overlay{-webkit-backdrop-filter:blur(4px);background:#00000080}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.line-clamp-2{-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.mobile-only{display:none!important}@media (width<=767px){.mobile-only{display:flex!important}.desktop-only{display:none!important}body,h1,h2,h3,h4,h5,h6{word-break:break-word;overflow-wrap:break-word}.btn,button,select{min-height:44px}.btn-sm{min-height:36px}.page-main{padding:20px 16px 88px!important}.filter-scroll{-webkit-overflow-scrolling:touch;scrollbar-width:none;padding-bottom:4px;overflow-x:auto}.filter-scroll::-webkit-scrollbar{display:none}.hide-on-mobile{display:none!important}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes float{0%{transform:translateY(0)}50%{transform:translateY(-8px)}to{transform:translateY(0)}}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.animate-in{animation:slideUp var(--transition-slow) forwards}.animate-float{animation:6s ease-in-out infinite float}.markdown-body p{margin-bottom:8px}.markdown-body p:last-child{margin-bottom:0}.markdown-body pre{background-color:var(--surface-raised);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:var(--space-3);margin:var(--space-3) 0;color:var(--text-primary);font-family:JetBrains Mono,monospace;font-size:13px;overflow:auto}.markdown-body code{background-color:var(--overlay-bg);border-radius:4px;padding:2px 4px;font-family:JetBrains Mono,monospace;font-size:.9em}.markdown-body pre code{background-color:#0000;border-radius:0;padding:0}.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4{color:var(--text-primary);margin-top:16px;margin-bottom:8px;font-weight:600}.markdown-body ul,.markdown-body ol{margin-bottom:8px;padding-left:20px}.markdown-body li{margin-bottom:4px}.ts-page{background:var(--bg-main,var(--bg-editor));min-height:100vh;display:flex}.ts-main{color:var(--text-primary);flex:1;padding:40px 0 60px;overflow-y:auto}.ts-header{margin-bottom:32px;padding:0 40px}.ts-header__inner{align-items:center;gap:16px;margin-bottom:6px;display:flex}.ts-header__icon{background:linear-gradient(135deg,#6366f1,#7c3aed);border-radius:14px;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;display:flex}.ts-header__title{color:var(--text-primary);margin:0;font-size:1.9rem;font-weight:800}.ts-header__subtitle{color:var(--text-muted);margin:0;font-size:.88rem}.ts-tabs{gap:4px;margin-bottom:36px;padding:0 40px;display:flex}.ts-tab{cursor:pointer;color:var(--text-muted);transition:var(--transition);white-space:nowrap;background:0 0;border:none;border-radius:12px;align-items:center;gap:10px;padding:10px 20px;font-family:inherit;font-size:.95rem;font-weight:600;display:flex}.ts-tab:hover:not(.ts-tab--active){color:var(--text-primary);background:var(--overlay-bg)}.ts-tab--active{color:var(--text-primary);background:var(--bg-card);box-shadow:var(--card-shadow);border:1px solid var(--border-subtle)}.ts-content{padding:0 40px}.ts-toast{border-radius:10px;align-items:center;gap:10px;margin-bottom:24px;padding:12px 20px;display:flex}.ts-toast--success{border:1px solid var(--success);color:var(--success);background:#34d3991a}.ts-toast--error{border:1px solid var(--danger);color:var(--danger);background:#ea433514}.ts-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px;font-size:.75rem;font-weight:700;display:block}.ts-input{background:var(--overlay-bg);border:1px solid var(--border-subtle);width:100%;color:var(--text-primary);box-sizing:border-box;transition:var(--transition);border-radius:9px;outline:none;padding:9px 13px;font-family:inherit;font-size:.88rem}.ts-input:focus{border-color:var(--border-accent);box-shadow:0 0 0 3px var(--brand-glow)}.ts-input--lg{border-radius:12px;padding:12px 16px;font-size:.95rem}.ts-textarea{background:var(--overlay-bg);border:1px solid var(--border-subtle);width:100%;color:var(--text-primary);box-sizing:border-box;transition:var(--transition);resize:vertical;border-radius:9px;outline:none;padding:9px 13px;font-family:inherit;font-size:.88rem;line-height:1.6}.ts-textarea:focus{border-color:var(--border-accent);box-shadow:0 0 0 3px var(--brand-glow)}.ts-select{background:var(--overlay-bg);border:1px solid var(--border-subtle);width:100%;color:var(--text-primary);box-sizing:border-box;cursor:pointer;border-radius:9px;outline:none;padding:9px 13px;font-family:inherit;font-size:.88rem}.ts-select:focus{border-color:var(--border-accent)}.ts-select option{background:var(--bg-card);color:var(--text-primary)}.ts-btn{background:var(--overlay-bg);border:1px solid var(--border-subtle);color:var(--text-primary);cursor:pointer;transition:var(--transition);border-radius:12px;align-items:center;gap:8px;padding:10px 20px;font-family:inherit;font-size:.9rem;font-weight:600;display:inline-flex}.ts-btn:hover{background:var(--overlay-bg-hover);border-color:var(--border-accent)}.ts-btn--primary{background:var(--brand-primary);color:#fff;box-shadow:0 2px 8px var(--brand-glow);border:none}.ts-btn--primary:hover{box-shadow:0 4px 15px var(--brand-glow);opacity:.92;color:#fff;transform:translateY(-1px)}.ts-btn--danger{color:var(--danger);background:#ea433514;border:1px solid #ea433533}.ts-btn--danger:hover{border-color:var(--danger);background:#ea433526}.ts-btn--ghost{background:0 0;border:none;padding:6px 8px}.ts-btn--ghost:hover{background:var(--overlay-bg);border:none}.ts-btn--sm{border-radius:8px;padding:5px 12px;font-size:.8rem}.ts-btn--xs{border-radius:6px;padding:3px 8px;font-size:.75rem}.ts-btn--icon{border-radius:8px;padding:6px}.ts-card{background:var(--bg-card);border:1px solid var(--border-subtle);box-shadow:var(--card-shadow);border-radius:16px}.ts-card--hoverable{cursor:pointer;transition:var(--transition)}.ts-card--hoverable:hover{border-color:var(--border-accent);box-shadow:var(--dropdown-shadow);transform:translateY(-2px)}.ts-skeleton{background:linear-gradient(90deg, var(--overlay-bg) 25%, var(--overlay-bg-hover) 50%, var(--overlay-bg) 75%);background-size:200% 100%;border-radius:8px;animation:1.5s infinite ts-shimmer}@keyframes ts-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@keyframes ts-pulse{0%,to{opacity:.4}50%{opacity:.8}}@keyframes ts-spin{to{transform:rotate(360deg)}}@keyframes ts-slide-up{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.ts-spinner{border:2px solid var(--border-subtle);border-top-color:var(--brand-primary);border-radius:50%;width:16px;height:16px;animation:.8s linear infinite ts-spin}.ts-spinner--white{border-color:#fff #ffffff4d #ffffff4d}.ts-empty{text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:80px 40px;display:flex}.ts-empty__icon{background:var(--overlay-bg);border:1px solid var(--border-subtle);border-radius:20px;justify-content:center;align-items:center;width:80px;height:80px;margin-bottom:24px;display:flex}.ts-empty__title{color:var(--text-primary);margin-bottom:10px;font-size:1.3rem;font-weight:800}.ts-empty__text{color:var(--text-muted);max-width:360px;margin-bottom:28px;font-size:.9rem;line-height:1.6}.ts-list-header{justify-content:space-between;align-items:center;margin-bottom:28px;display:flex}.ts-list-header__title{color:var(--text-primary);margin-bottom:4px;font-size:1.5rem;font-weight:900}.ts-list-header__subtitle{color:var(--text-muted);margin:0;font-size:.85rem}.ts-course-grid{grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:20px;display:grid}.ts-course-card{background:var(--bg-card);border:1px solid var(--border-subtle);box-shadow:var(--card-shadow);cursor:pointer;transition:var(--transition);border-radius:16px;overflow:hidden}.ts-course-card:hover{border-color:var(--border-accent);box-shadow:var(--dropdown-shadow);transform:translateY(-3px)}.ts-course-card__cover{align-items:center;gap:14px;height:80px;padding-left:20px;display:flex;position:relative}.ts-course-card__cover-icon{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffff2e;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:42px;height:42px;display:flex}.ts-course-card__cover-title{color:#fff;font-size:1.05rem;font-weight:800;line-height:1.2}.ts-course-card__cover-cat{color:#ffffffbf;text-transform:uppercase;letter-spacing:.5px;font-size:.7rem;font-weight:600}.ts-course-card__status-badge{color:#ffffffd9;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0000004d;border-radius:8px;padding:2px 8px;font-size:.68rem;font-weight:700;position:absolute;top:10px;right:10px}.ts-course-card__body{padding:16px 20px}.ts-course-card__desc{color:var(--text-muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:14px;font-size:.83rem;line-height:1.5;display:-webkit-box;overflow:hidden}.ts-course-card__meta{flex-wrap:wrap;gap:12px;margin-bottom:14px;display:flex}.ts-course-card__badge{background:var(--overlay-bg);border:1px solid var(--border-subtle);border-radius:8px;align-items:center;gap:5px;padding:3px 9px;font-size:.75rem;font-weight:600;display:flex}.ts-course-card__footer{border-top:1px solid var(--border-subtle);justify-content:space-between;align-items:center;padding-top:12px;display:flex}.ts-course-card__footer-link{color:var(--text-muted);align-items:center;gap:4px;font-size:.78rem;font-weight:500;display:flex}.ts-wizard{background:var(--bg-card);border:1px solid var(--border-subtle);width:100%;box-shadow:var(--card-shadow);border-radius:16px;padding:32px 32px 40px;animation:.3s ease-out ts-slide-up}.ts-wizard__top{justify-content:space-between;align-items:center;margin-bottom:36px;display:flex}.ts-wizard__title{color:var(--text-primary);margin-bottom:4px;font-size:1.6rem;font-weight:900}.ts-wizard__step-label{color:var(--text-muted);margin:0;font-size:.88rem}.ts-wizard__close{color:var(--text-muted);cursor:pointer;transition:var(--transition);background:0 0;border:none;border-radius:8px;padding:6px;display:flex}.ts-wizard__close:hover{background:var(--overlay-bg);color:var(--text-primary)}.ts-stepper{align-items:center;margin-bottom:40px;display:flex}.ts-stepper__item{flex-direction:column;align-items:center;gap:6px;display:flex}.ts-stepper__dot{cursor:default;border:1px solid var(--border-subtle);background:var(--overlay-bg);width:32px;height:32px;color:var(--text-muted);border-radius:50%;justify-content:center;align-items:center;font-size:.78rem;font-weight:800;transition:all .3s;display:flex}.ts-stepper__dot--active{background:var(--brand-primary);color:#fff;box-shadow:0 0 0 4px var(--brand-glow);border-color:#0000}.ts-stepper__dot--done{background:var(--brand-primary);color:#fff;cursor:pointer;border-color:#0000}.ts-stepper__dot--done:hover{opacity:.85;transform:scale(1.05)}.ts-stepper__label{white-space:nowrap;color:var(--text-muted);font-size:.68rem;font-weight:400}.ts-stepper__label--active{color:var(--text-primary);font-weight:700}.ts-stepper__line{background:var(--border-subtle);flex:1;height:2px;margin:0 8px 22px;transition:background .3s}.ts-stepper__line--done{background:var(--brand-primary)}.ts-wizard__content{min-height:280px;position:relative}.ts-wizard__step{flex-direction:column;gap:20px;display:flex}.ts-level-cards{grid-template-columns:1fr 1fr 1fr;gap:10px;display:grid}.ts-level-card{cursor:pointer;text-align:center;background:var(--overlay-bg);border:2px solid var(--border-subtle);transition:var(--transition);border-radius:12px;padding:16px 12px}.ts-level-card:hover{border-color:var(--border-accent);background:var(--brand-glow)}.ts-level-card--active{background:var(--brand-glow);border-color:var(--border-accent)}.ts-level-card__emoji{margin-bottom:6px;font-size:1.5rem}.ts-level-card__name{color:var(--text-primary);font-size:.85rem;font-weight:700}.ts-level-card--active .ts-level-card__name{color:var(--brand-primary)}.ts-level-card__desc{color:var(--text-muted);margin-top:2px;font-size:.72rem}.ts-category-chips{flex-wrap:wrap;gap:8px;display:flex}.ts-category-chip{cursor:pointer;background:var(--overlay-bg);color:var(--text-muted);border:1px solid var(--border-subtle);transition:var(--transition);border-radius:20px;padding:6px 16px;font-size:.83rem;font-weight:600}.ts-category-chip:hover{border-color:var(--border-accent);color:var(--text-primary);background:var(--brand-glow)}.ts-category-chip--active{background:var(--brand-primary);color:#fff;border-color:#0000}.ts-color-palette{flex-wrap:wrap;gap:10px;margin-bottom:16px;display:flex}.ts-color-swatch{cursor:pointer;border:none;border-radius:10px;width:40px;height:40px;transition:all .15s}.ts-color-swatch--active{transform:scale(1.15)}.ts-color-swatch--custom{background:var(--overlay-bg);border:1px dashed var(--border-subtle);color:var(--text-muted);justify-content:center;align-items:center;font-size:1.2rem;display:flex;position:relative;overflow:hidden}.ts-cover-preview{border-radius:16px;align-items:center;gap:16px;width:100%;height:100px;padding-left:24px;transition:background .3s;display:flex}.ts-wizard__nav{justify-content:space-between;margin-top:32px;display:flex}.ts-field-error{color:var(--danger);margin-top:4px;font-size:.75rem;font-weight:600}.ts-editor{flex-direction:column;height:calc(100vh - 180px);min-height:500px;display:flex}.ts-editor__topbar{border-bottom:1px solid var(--border-subtle);background:var(--bg-card);border-radius:16px 16px 0 0;flex-shrink:0;align-items:center;gap:12px;padding:12px 20px;display:flex}.ts-editor__topbar-divider{background:var(--border-subtle);width:1px;height:24px}.ts-editor__breadcrumb{flex:1;align-items:center;gap:6px;display:flex;overflow:hidden}.ts-editor__breadcrumb-item{color:var(--text-muted);cursor:pointer;white-space:nowrap;font-size:.82rem;font-weight:500;transition:color .15s}.ts-editor__breadcrumb-item:hover{color:var(--brand-primary)}.ts-editor__breadcrumb-sep{color:var(--border-subtle);font-size:.9rem}.ts-editor__breadcrumb-current{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:.9rem;font-weight:800;overflow:hidden}.ts-editor__status-dot{border-radius:50%;flex-shrink:0;width:10px;height:10px}.ts-editor__publish-badge{white-space:nowrap;border-radius:12px;padding:2px 10px;font-size:.78rem;font-weight:700}.ts-editor__topbar-actions{flex-shrink:0;align-items:center;gap:8px;display:flex}.ts-editor__panel-toggle{border:1px solid var(--border-subtle);cursor:pointer;transition:var(--transition);background:0 0;border-radius:8px;align-items:center;padding:6px;display:flex}.ts-editor__panel-toggle--active{background:var(--overlay-bg)}.ts-editor__layout{border:1px solid var(--border-subtle);border-top:none;border-radius:0 0 16px 16px;flex:1;grid-template-rows:1fr;grid-template-columns:260px 1fr 260px;transition:grid-template-columns .25s;display:grid;overflow:hidden}.ts-editor__layout--no-left{grid-template-columns:0 1fr 260px}.ts-editor__layout--no-right{grid-template-columns:260px 1fr 0}.ts-editor__layout--no-both{grid-template-columns:0 1fr 0}.ts-editor__left{border-right:1px solid var(--border-subtle);background:var(--surface-sunken);flex-direction:column;min-height:0;transition:opacity .2s;display:flex;overflow:hidden}.ts-editor__center{background:var(--bg-workspace);flex-direction:column;min-height:0;display:flex;overflow:hidden}.ts-editor__right{border-left:1px solid var(--border-subtle);background:var(--surface-sunken);flex-direction:column;min-height:0;transition:opacity .2s;display:flex;overflow:hidden}.ts-panel-tabs{border-bottom:1px solid var(--border-subtle);flex-shrink:0;display:flex}.ts-panel-tab{cursor:pointer;color:var(--text-muted);background:0 0;border:none;border-bottom:2px solid #0000;flex:1;justify-content:center;align-items:center;gap:5px;padding:10px 8px;font-family:inherit;font-size:.75rem;font-weight:700;transition:all .15s;display:flex}.ts-panel-tab:hover{color:var(--text-primary);background:var(--overlay-bg)}.ts-panel-tab--active{color:var(--brand-primary);border-bottom-color:var(--brand-primary)}.ts-structure{flex-direction:column;width:260px;height:100%;display:flex}.ts-structure__header{border-bottom:1px solid var(--border-subtle);flex-shrink:0;padding:14px 16px}.ts-structure__section-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px;font-size:.7rem;font-weight:700}.ts-structure__course-title{color:var(--text-primary);text-overflow:ellipsis;white-space:nowrap;align-items:center;gap:7px;font-size:.92rem;font-weight:800;display:flex;overflow:hidden}.ts-structure__count{color:var(--text-muted);margin-top:4px;font-size:.75rem}.ts-structure__scroll{flex:1;padding:8px 0;overflow-y:auto}.ts-lesson-row{cursor:pointer;background:0 0;border-left:3px solid #0000;align-items:center;gap:8px;width:100%;padding:9px 16px;transition:all .15s;display:flex;position:relative}.ts-lesson-row:hover{background:var(--overlay-bg)}.ts-lesson-row--active{background:var(--brand-glow);border-left-color:var(--brand-primary)}.ts-lesson-row--drag-over{background:var(--overlay-bg-hover);border-top:2px solid var(--brand-primary)}.ts-lesson-row__num{background:var(--overlay-bg);border:1px solid var(--border-subtle);width:22px;height:22px;color:var(--text-muted);border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;font-size:.65rem;font-weight:800;display:flex}.ts-lesson-row--active .ts-lesson-row__num{background:var(--brand-primary);color:#fff;border-color:#0000}.ts-lesson-row__info{flex:1;min-width:0}.ts-lesson-row__title{color:var(--text-primary);text-overflow:ellipsis;white-space:nowrap;font-size:.83rem;font-weight:500;overflow:hidden}.ts-lesson-row--active .ts-lesson-row__title{color:var(--brand-primary);font-weight:700}.ts-lesson-row__subtitle{color:var(--text-muted);font-size:.68rem}.ts-lesson-row__delete{color:var(--danger);cursor:pointer;opacity:0;background:0 0;border:none;align-items:center;padding:3px;transition:opacity .15s;display:flex}.ts-lesson-row:hover .ts-lesson-row__delete{opacity:1}.ts-lesson-row__grip{color:var(--text-muted);opacity:.4;cursor:grab;flex-shrink:0}.ts-add-lesson-btn{width:calc(100% - 24px);color:var(--brand-primary);border:1px dashed var(--border-accent);cursor:pointer;transition:var(--transition);background:0 0;border-radius:8px;justify-content:center;align-items:center;gap:6px;margin:6px 12px;padding:8px;font-family:inherit;font-size:.78rem;font-weight:600;display:flex}.ts-add-lesson-btn:hover{background:var(--brand-glow)}.ts-add-lesson-form{background:var(--brand-glow);border:1px solid var(--border-accent);border-radius:10px;margin:4px 8px;padding:12px;overflow:hidden}.ts-add-lesson-form__fields{flex-direction:column;gap:8px;margin-bottom:10px;display:flex}.ts-add-lesson-form__grid{grid-template-columns:1fr 1fr;gap:6px;display:grid}.ts-add-lesson-form__actions{gap:6px;display:flex}.ts-block-editor{flex-direction:column;flex:1;min-height:0;display:flex}.ts-block-editor__toolbar{border-bottom:1px solid var(--border-subtle);background:var(--bg-card);flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;padding:12px 20px;display:flex}.ts-block-editor__lesson-info{flex:1;min-width:0}.ts-block-editor__lesson-eyebrow{color:var(--text-muted);text-transform:uppercase;letter-spacing:.4px;margin-bottom:2px;font-size:.72rem;font-weight:600}.ts-block-editor__lesson-title{color:var(--text-primary);text-overflow:ellipsis;white-space:nowrap;font-size:1.02rem;font-weight:800;overflow:hidden}.ts-block-editor__toolbar-right{flex-shrink:0;align-items:center;gap:8px;display:flex}.ts-save-status{border-radius:8px;align-items:center;gap:6px;padding:4px 10px;font-size:.78rem;font-weight:600;display:flex}.ts-save-status--saved{color:var(--success);background:#34a8531a}.ts-save-status--saving{color:var(--warning);background:#fbbc041a}.ts-save-status--unsaved{color:var(--text-muted);background:var(--overlay-bg)}.ts-add-block-btn{cursor:pointer;border:1px solid var(--border-subtle);background:var(--overlay-bg);transition:var(--transition);border-radius:8px;align-items:center;gap:5px;padding:6px 12px;font-family:inherit;font-size:.8rem;font-weight:700;display:inline-flex}.ts-add-block-btn--theory{color:var(--brand-primary)}.ts-add-block-btn--theory:hover{border-color:var(--brand-primary);background:var(--brand-glow)}.ts-add-block-btn--quiz{color:#a855f7}.ts-add-block-btn--quiz:hover{background:#a855f714;border-color:#a855f7}.ts-add-block-btn--practice{color:var(--success)}.ts-add-block-btn--practice:hover{border-color:var(--success);background:#34a85314}.ts-block-editor__blocks{background:var(--bg-workspace);flex-direction:column;flex:1;gap:10px;min-height:0;padding:16px;display:flex;overflow-y:auto}.ts-block-editor__spacer{flex-shrink:0;height:40px}.ts-block-editor__empty{height:200px;color:var(--text-muted);border:1px dashed var(--border-subtle);background:var(--bg-card);text-align:center;border-radius:14px;flex-direction:column;justify-content:center;align-items:center;gap:14px;padding:24px;display:flex}.ts-block-card{background:var(--bg-card);border:1px solid var(--border-subtle);box-shadow:var(--card-shadow);border-radius:14px;transition:border-color .15s,box-shadow .15s;position:relative;overflow:hidden}.ts-block-card--drag-over{border-color:var(--brand-primary);box-shadow:0 0 0 2px var(--brand-glow)}.ts-block-card--dragging{opacity:.45}.ts-block-card__header{border-bottom:1px solid var(--border-subtle);cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:10px;padding:10px 14px;display:flex}.ts-block-card__header--collapsed{border-bottom:none}.ts-block-card__grip{cursor:grab;color:var(--text-muted);flex-shrink:0;align-items:center;display:flex}.ts-block-card__grip:active{cursor:grabbing}.ts-block-card__type-icon{flex:1;align-items:center;gap:7px;display:flex}.ts-block-card__type-label{font-size:.85rem;font-weight:700}.ts-block-card__content-title{color:var(--text-muted);font-size:.82rem;font-weight:400}.ts-block-card__header-actions{align-items:center;gap:4px;display:flex}.ts-block-card__action-btn{border:1px solid var(--border-subtle);cursor:pointer;transition:var(--transition);background:0 0;border-radius:6px;align-items:center;gap:4px;padding:4px 7px;font-family:inherit;font-size:.75rem;font-weight:600;display:flex}.ts-block-card__action-btn--danger{color:var(--danger)}.ts-block-card__action-btn--danger:hover{border-color:var(--danger);background:#ea43351a}.ts-block-card__action-btn--copy{color:var(--text-muted)}.ts-block-card__action-btn--copy:hover{background:var(--overlay-bg);color:var(--text-primary)}.ts-block-card__body{padding:18px;overflow:hidden}.ts-block-card--theory .ts-block-card__header{background:var(--brand-glow)}.ts-block-card--quiz .ts-block-card__header{background:#a855f714}.ts-block-card--practice .ts-block-card__header{background:#34a85314}.ts-theory-editor{flex-direction:column;gap:14px;display:flex}.ts-fmt-toolbar{background:var(--surface-sunken);border:1px solid var(--border-subtle);border-radius:8px;flex-wrap:wrap;gap:2px;padding:4px 6px;display:flex}.ts-fmt-btn{cursor:pointer;color:var(--text-muted);transition:var(--transition);background:0 0;border:none;border-radius:5px;align-items:center;gap:3px;padding:4px 8px;font-family:JetBrains Mono,monospace;font-size:.75rem;font-weight:700;display:flex}.ts-fmt-btn:hover{background:var(--overlay-bg-hover);color:var(--text-primary)}.ts-fmt-btn--sep{background:var(--border-subtle);pointer-events:none;width:1px;height:18px;margin:0 2px}.ts-theory-split{grid-template-columns:1fr 1fr;gap:10px;min-height:220px;display:grid}.ts-theory-split__pane{flex-direction:column;gap:4px;display:flex}.ts-theory-split__pane-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;font-size:.68rem;font-weight:700}.ts-theory-split__textarea{background:var(--surface-sunken);border:1px solid var(--border-subtle);min-height:180px;color:var(--text-primary);resize:vertical;border-radius:9px;outline:none;flex:1;padding:12px;font-family:JetBrains Mono,monospace;font-size:.82rem;line-height:1.7;transition:border-color .15s}.ts-theory-split__textarea:focus{border-color:var(--border-accent)}.ts-theory-split__preview{background:var(--surface-sunken);border:1px solid var(--border-subtle);min-height:180px;color:var(--text-primary);border-radius:9px;flex:1;padding:12px 14px;font-size:.88rem;line-height:1.7;overflow-y:auto}.ts-md-preview h1{color:var(--text-primary);margin:0 0 12px;font-size:1.3rem;font-weight:800}.ts-md-preview h2{color:var(--text-primary);margin:12px 0 8px;font-size:1.1rem;font-weight:700}.ts-md-preview h3{color:var(--text-primary);margin:10px 0 6px;font-size:.95rem;font-weight:700}.ts-md-preview p{margin:0 0 10px}.ts-md-preview p:last-child{margin:0}.ts-md-preview strong{color:var(--text-primary);font-weight:700}.ts-md-preview em{font-style:italic}.ts-md-preview code{background:var(--overlay-bg);color:var(--brand-primary);border:1px solid var(--border-subtle);border-radius:4px;padding:1px 5px;font-family:JetBrains Mono,monospace;font-size:.82em}.ts-md-preview pre{background:var(--surface-sunken);border:1px solid var(--border-subtle);border-radius:8px;margin:8px 0;padding:10px 12px;overflow-x:auto}.ts-md-preview pre code{color:var(--text-primary);background:0 0;border:none;padding:0}.ts-md-preview ul,.ts-md-preview ol{margin:0 0 10px 20px}.ts-md-preview li{margin-bottom:4px}.ts-md-preview blockquote{border-left:3px solid var(--brand-primary);color:var(--text-muted);margin:8px 0;padding-left:12px;font-style:italic}.ts-md-preview a{color:var(--brand-primary);text-decoration:underline}.ts-md-preview hr{border:none;border-top:1px solid var(--border-subtle);margin:12px 0}.ts-quiz-editor{flex-direction:column;gap:14px;display:flex}.ts-quiz-settings{grid-template-columns:1fr 1fr;gap:12px;display:grid}.ts-quiz-threshold-info{align-items:flex-end;display:flex}.ts-quiz-threshold-badge{background:var(--overlay-bg);border:1px solid var(--border-subtle);color:var(--text-muted);border-radius:9px;padding:9px 14px;font-size:.82rem;font-weight:600}.ts-quiz-question{background:var(--surface-sunken);border:1px solid var(--border-subtle);border-radius:12px;overflow:hidden}.ts-quiz-question__header{border-bottom:1px solid var(--border-subtle);background:var(--overlay-bg);justify-content:space-between;align-items:center;padding:10px 14px;display:flex}.ts-quiz-question__num{color:var(--text-muted);font-size:.82rem;font-weight:700}.ts-quiz-question__actions{gap:4px;display:flex}.ts-quiz-question__body{flex-direction:column;gap:10px;padding:14px;display:flex}.ts-quiz-options{flex-direction:column;gap:6px;display:flex}.ts-quiz-option{align-items:center;gap:8px;display:flex}.ts-quiz-option__radio{border:2px solid var(--border-subtle);width:26px;height:26px;color:var(--text-muted);cursor:pointer;background:0 0;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:.7rem;font-weight:800;transition:all .15s;display:flex}.ts-quiz-option__radio--correct{border-color:var(--success);color:var(--success);background:#34a8531f}.ts-quiz-option__input{background:var(--bg-card);border:1px solid var(--border-subtle);color:var(--text-primary);border-radius:8px;outline:none;flex:1;padding:7px 12px;font-family:inherit;font-size:.85rem;transition:border-color .15s}.ts-quiz-option__input:focus{border-color:var(--border-accent)}.ts-quiz-option__input--correct{border-color:var(--success)}.ts-quiz-add-option{color:var(--text-muted);border:1px dashed var(--border-subtle);cursor:pointer;transition:var(--transition);background:0 0;border-radius:8px;align-self:flex-start;align-items:center;gap:6px;padding:5px 12px;font-family:inherit;font-size:.78rem;font-weight:600;display:flex}.ts-quiz-add-option:hover{border-color:var(--brand-primary);color:var(--brand-primary)}.ts-quiz-explanation{color:var(--text-muted);background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:7px;padding:8px 10px;font-size:.78rem;font-style:italic}.ts-quiz-add-question-btn{color:#a855f7;cursor:pointer;transition:var(--transition);background:0 0;border:1px dashed #a855f766;border-radius:10px;justify-content:center;align-items:center;gap:6px;padding:10px;font-family:inherit;font-size:.85rem;font-weight:700;display:flex}.ts-quiz-add-question-btn:hover{background:#a855f714;border-color:#a855f7}.ts-practice-editor{flex-direction:column;gap:14px;display:flex}.ts-practice-editor__monaco{border:1px solid var(--border-subtle);border-radius:9px;overflow:hidden}.ts-test-cases-header{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.ts-test-cases{flex-direction:column;gap:6px;display:flex}.ts-test-case{background:var(--surface-sunken);border:1px solid var(--border-subtle);border-radius:8px;grid-template-columns:1fr 1fr auto;align-items:end;gap:8px;padding:10px;display:grid}.ts-test-case__label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.4px;margin-bottom:4px;font-size:.68rem;font-weight:700}.ts-test-cases-empty{text-align:center;background:var(--surface-sunken);border:1px dashed var(--border-subtle);color:var(--text-muted);border-radius:9px;padding:14px;font-size:.83rem}.ts-settings-panel{flex-direction:column;flex:1;gap:14px;padding:16px;display:flex;overflow-y:auto}.ts-settings-panel__title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;font-size:.72rem;font-weight:700}.ts-settings-panel__empty{color:var(--text-muted);text-align:center;flex-direction:column;align-items:center;gap:12px;padding:32px 16px;font-size:.85rem;display:flex}.ts-info-panel{flex:1;padding:16px;overflow-y:auto}.ts-info-panel__row{margin-bottom:16px}.ts-info-panel__key{color:var(--text-muted);text-transform:uppercase;letter-spacing:.4px;margin-bottom:4px;font-size:.72rem;font-weight:700}.ts-info-panel__value{color:var(--text-primary);font-size:.85rem;font-weight:500;line-height:1.5}.ts-info-panel__header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.ts-info-panel__section{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;font-size:.75rem;font-weight:700}.ts-analytics-header{margin-bottom:28px}.ts-analytics-title{margin-bottom:4px;font-size:1.5rem;font-weight:800}.ts-analytics-subtitle{color:var(--text-muted);font-size:.88rem}.ts-stats-grid{grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:32px;display:grid}.ts-stat-card{background:var(--bg-card);border:1px solid var(--border-subtle);box-shadow:var(--card-shadow);border-radius:16px;align-items:center;gap:16px;padding:20px 24px;display:flex}.ts-stat-card__icon{border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.ts-stat-card__value{font-size:1.8rem;font-weight:900}.ts-stat-card__label{color:var(--text-muted);font-size:.8rem;font-weight:600}.ts-challenges-header{justify-content:space-between;align-items:center;margin-bottom:28px;display:flex}.ts-challenges-title{margin-bottom:4px;font-size:1.5rem;font-weight:800}.ts-challenges-subtitle{color:var(--text-muted);font-size:.88rem}.ts-difficulty-badge{border-radius:8px;padding:3px 10px;font-size:.72rem;font-weight:700}.ts-difficulty-badge--easy{color:var(--success);background:#34d3991a}.ts-difficulty-badge--medium{color:var(--warning);background:#f59e0b1a}.ts-difficulty-badge--hard{color:var(--danger);background:#ea433514}.ts-publish-badge{border-radius:8px;padding:3px 10px;font-size:.76rem;font-weight:700}.ts-publish-badge--live{color:var(--success);background:#34d3991a;border:1px solid #34d39933}.ts-publish-badge--draft{background:var(--overlay-bg);color:var(--text-muted);border:1px solid var(--overlay-bg)}.xterm{cursor:text;-webkit-user-select:none;user-select:none;position:relative}.xterm.focus,.xterm:focus{outline:none}.xterm .xterm-helpers{z-index:5;position:absolute;top:0}.xterm .xterm-helper-textarea{opacity:0;z-index:-5;white-space:nowrap;resize:none;border:0;width:0;height:0;margin:0;padding:0;position:absolute;top:0;left:-9999em;overflow:hidden}.xterm .composition-view{color:#fff;white-space:nowrap;z-index:1;background:#000;display:none;position:absolute}.xterm .composition-view.active{display:block}.xterm .xterm-viewport{cursor:default;background-color:#000;position:absolute;inset:0;overflow-y:scroll}.xterm .xterm-screen{position:relative}.xterm .xterm-screen canvas{position:absolute;top:0;left:0}.xterm-char-measure-element{visibility:hidden;line-height:normal;display:inline-block;position:absolute;top:0;left:-9999em}.xterm.enable-mouse-events{cursor:default}.xterm.xterm-cursor-pointer,.xterm .xterm-cursor-pointer{cursor:pointer}.xterm.column-select.focus{cursor:crosshair}.xterm .xterm-accessibility:not(.debug),.xterm .xterm-message{z-index:10;color:#0000;pointer-events:none;position:absolute;inset:0}.xterm .xterm-accessibility-tree:not(.debug) ::selection{color:#0000}.xterm .xterm-accessibility-tree{-webkit-user-select:text;user-select:text;white-space:pre;font-family:monospace}.xterm .xterm-accessibility-tree>div{transform-origin:0;width:fit-content}.xterm .live-region{width:1px;height:1px;position:absolute;left:-9999px;overflow:hidden}.xterm-dim{opacity:1!important}.xterm-underline-1{text-decoration:underline}.xterm-underline-2{-webkit-text-decoration:underline double;text-decoration:underline double}.xterm-underline-3{-webkit-text-decoration:underline wavy;text-decoration:underline wavy}.xterm-underline-4{-webkit-text-decoration:underline dotted;text-decoration:underline dotted}.xterm-underline-5{-webkit-text-decoration:underline dashed;text-decoration:underline dashed}.xterm-overline{text-decoration:overline}.xterm-overline.xterm-underline-1{text-decoration:underline overline}.xterm-overline.xterm-underline-2{-webkit-text-decoration:overline double underline;text-decoration:overline double underline}.xterm-overline.xterm-underline-3{-webkit-text-decoration:overline wavy underline;text-decoration:overline wavy underline}.xterm-overline.xterm-underline-4{-webkit-text-decoration:overline dotted underline;text-decoration:overline dotted underline}.xterm-overline.xterm-underline-5{-webkit-text-decoration:overline dashed underline;text-decoration:overline dashed underline}.xterm-strikethrough{text-decoration:line-through}.xterm-screen .xterm-decoration-container .xterm-decoration{z-index:6;position:absolute}.xterm-screen .xterm-decoration-container .xterm-decoration.xterm-decoration-top-layer{z-index:7}.xterm-decoration-overview-ruler{z-index:8;pointer-events:none;position:absolute;top:0;right:0}.xterm-decoration-top{z-index:2;position:relative}.xterm .xterm-scrollable-element>.scrollbar{cursor:default}.xterm .xterm-scrollable-element>.scrollbar>.scra{cursor:pointer;font-size:11px!important}.xterm .xterm-scrollable-element>.visible{opacity:1;z-index:11;background:0 0;transition:opacity .1s linear}.xterm .xterm-scrollable-element>.invisible{opacity:0;pointer-events:none}.xterm .xterm-scrollable-element>.invisible.fade{transition:opacity .8s linear}.xterm .xterm-scrollable-element>.shadow{display:none;position:absolute}.xterm .xterm-scrollable-element>.shadow.top{width:100%;height:3px;box-shadow:var(--vscode-scrollbar-shadow,#000) 0 6px 6px -6px inset;display:block;top:0;left:3px}.xterm .xterm-scrollable-element>.shadow.left{width:3px;height:100%;box-shadow:var(--vscode-scrollbar-shadow,#000) 6px 0 6px -6px inset;display:block;top:3px;left:0}.xterm .xterm-scrollable-element>.shadow.top-left-corner{width:3px;height:3px;display:block;top:0;left:0}.xterm .xterm-scrollable-element>.shadow.top.left{box-shadow:var(--vscode-scrollbar-shadow,#000) 6px 0 6px -6px inset}