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infinite;pointer-events:none;-webkit-user-select:none;user-select:none}@keyframes learn-wordmark-shadow-sway{0%,to{transform:skew(-22deg) scaleY(1.8)}50%{transform:skew(-12deg) scaleY(1.9)}}@media (prefers-reduced-motion: reduce){.learn-topbar-wordmark-shadow{animation:none}}.learn-topbar-wordmark-main{position:relative;font-size:1.02rem;font-weight:800;letter-spacing:.08em;line-height:1;color:var(--brand-bright);-webkit-text-stroke:1.4px var(--brand-teal-dark);paint-order:stroke fill;text-shadow:0 0 20px var(--brand-glow),0 0 36px var(--brand-glow-2)}.learn-topbar-pair{margin:2px 0 0;font-size:.7rem;font-weight:600;line-height:1.2;color:color-mix(in srgb,var(--text) 88%,transparent);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.learn-topbar-pair--target{margin-top:0;font-size:.6875rem;font-weight:500;color:var(--muted)}.learn-shell--photo-bg .learn-topbar-pair{color:#f1f5f9;text-shadow:var(--glass-text-shadow)}.learn-shell--photo-bg .learn-topbar-pair--target{color:#cbd5e1}.learn-topbar-title{margin:0;font-size:.95rem;font-weight:700;letter-spacing:-.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.learn-topbar-brand{margin:0;font-size:.6875rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:color-mix(in srgb,var(--accent) 70%,var(--muted));line-height:1.15}.learn-shell--photo-bg .learn-topbar-brand{color:color-mix(in srgb,#ffffff 82%,var(--accent) 18%)}.learn-topbar-sub{margin:2px 0 0;font-size:.6875rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.learn-topbar-sub--tab{text-transform:capitalize;color:color-mix(in srgb,var(--accent) 80%,var(--text))}.learn-topbar-action{width:36px;height:36px;border:none;border-radius:50%;background:var(--surface-2);color:var(--text);font-size:1.25rem;line-height:1;cursor:pointer}.learn-level-rail{position:fixed;right:6px;top:var( --display-mid, calc( (100dvh + var(--tg-ui-inset-top, 0px) + 8px - var(--nav-float-gap) - var(--safe-bottom) - var(--tg-ui-inset-bottom, 0px)) / 2 ) );transform:translateY(-50%);z-index:28;display:flex;flex-direction:column;align-items:center;gap:6px;padding:6px 3px;pointer-events:auto}[dir=rtl] .learn-level-rail{right:auto;left:6px}.learn-level-rail-item{width:36px;height:36px;border:1px solid color-mix(in srgb,var(--accent) 38%,transparent);border-radius:11px;padding:0;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--accent);background:color-mix(in srgb,var(--nav-accent-saturated-solid) 48%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 2px 10px color-mix(in srgb,#000 22%,transparent);transition:transform .14s ease,border-color .15s ease,background .15s ease,box-shadow .15s ease,color .15s ease}.learn-level-rail-item--photo{background-size:cover;background-position:center;color:#fff;text-shadow:0 1px 3px rgb(0 0 0 / 72%)}.learn-level-rail-item--photo:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:inherit;background:var(--nav-accent-saturated);pointer-events:none;transition:background .15s ease}.learn-level-rail-item--photo{position:relative;overflow:hidden}.learn-level-rail-item:active{transform:translateY(2px) scale(.93)}.learn-level-rail-item.active{border-color:color-mix(in srgb,var(--accent) 50%,#ffffff 12%);background:var(--nav-accent-tint);color:color-mix(in srgb,var(--accent) 94%,#0a1020 6%);box-shadow:inset 0 1px 4px color-mix(in srgb,#fff 55%,transparent),0 0 14px color-mix(in srgb,var(--accent) 28%,transparent),0 4px 12px color-mix(in srgb,var(--accent) 14%,transparent);transform:translateY(1px) scale(.97)}.learn-level-rail-item.active .learn-level-rail-label{font-weight:900;letter-spacing:.02em;text-shadow:0 1px 0 color-mix(in srgb,#fff 72%,transparent);-webkit-font-smoothing:antialiased}.learn-level-rail-item--photo.active{color:color-mix(in srgb,var(--accent) 92%,#0a1020 8%);text-shadow:0 1px 0 color-mix(in srgb,#fff 75%,transparent),0 0 1px color-mix(in srgb,#0a1020 35%,transparent)}.learn-level-rail-item--photo.active:before{background:color-mix(in srgb,var(--accent) 12%,#ffffff 52%)}.learn-level-rail-label{font-size:.74rem;font-weight:800;letter-spacing:-.02em;line-height:1;position:relative;z-index:1}.learn-level-grid{display:flex;flex-wrap:wrap;gap:8px}.learn-level-grid-btn{border:1px solid color-mix(in srgb,var(--text) 14%,transparent);background:color-mix(in srgb,var(--surface) 70%,transparent);color:var(--text);border-radius:999px;padding:8px 14px;font-size:.78rem;font-weight:700;cursor:pointer}.learn-mini-player{position:fixed;left:50%;transform:translate(-50%);bottom:calc(var(--nav-h) + var(--nav-float-gap) * 2 + var(--safe-bottom) + var(--tg-ui-inset-bottom, 0px));width:calc(100% - 28px - var(--tg-ui-inset-left, 0px) - var(--tg-ui-inset-right, 0px));max-width:420px;z-index:39;display:flex;align-items:center;gap:8px;padding:7px 8px;border-radius:999px;background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur)) saturate(var(--glass-saturate));-webkit-backdrop-filter:blur(var(--glass-blur)) saturate(var(--glass-saturate));border:1px solid var(--glass-border);box-shadow:var(--glass-shadow),inset 0 1px 0 var(--glass-inset-highlight)}.learn-mini-player-toggle{flex-shrink:0;width:36px;height:36px;border:none;border-radius:999px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center}.learn-mini-player-toggle svg{width:16px;height:16px}.learn-mini-player-info{flex:1;min-width:0;display:flex;align-items:baseline;gap:6px;overflow:hidden}.learn-mini-player-level{flex-shrink:0;font-size:.72rem;font-weight:800;color:var(--accent)}.learn-mini-player-title{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.84rem;font-weight:700;color:var(--text)}.learn-mini-player-close{flex-shrink:0;width:30px;height:30px;border:none;border-radius:999px;background:transparent;color:var(--muted);display:flex;align-items:center;justify-content:center}.learn-mini-player-close svg{width:14px;height:14px}.learn-bottom-nav-wrap{position:fixed;left:50%;transform:translate(-50%);bottom:calc(var(--nav-float-gap) + var(--safe-bottom) + var(--tg-ui-inset-bottom, 0px));width:calc(100% - 2 * (var(--learn-inset-x) + var(--learn-bar-shrink)) - var(--tg-ui-inset-left, 0px) - var(--tg-ui-inset-right, 0px));max-width:var(--learn-bar-max);z-index:40;pointer-events:none;container-type:inline-size}.learn-bottom-nav{--nav-count: 6;--nav-gap: max(4px, calc((100cqw - var(--nav-count) * var(--nav-chip-size)) / (var(--nav-count) + 1)));pointer-events:auto;display:flex;align-items:center;justify-content:center;gap:var(--nav-gap);padding:var(--nav-gap);border-radius:var(--learn-card-radius);background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur)) saturate(var(--glass-saturate));-webkit-backdrop-filter:blur(var(--glass-blur)) saturate(var(--glass-saturate));border:1px solid var(--glass-border);box-shadow:var(--glass-shadow),inset 0 1px 0 var(--glass-inset-highlight)}.learn-nav-item{position:relative;flex:0 0 var(--nav-chip-size);display:flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--accent);padding:0;width:var(--nav-chip-size);height:var(--nav-chip-size);cursor:pointer;-webkit-tap-highlight-color:transparent;transition:color .15s ease,transform .12s ease}.learn-nav-item:before{content:"";position:absolute;left:50%;top:50%;z-index:0;width:var(--nav-chip-size);height:var(--nav-chip-size);border-radius:var(--nav-chip-radius);transform:translate(-50%,-50%) scale(1);opacity:1;background:var(--nav-accent-saturated-solid);box-shadow:inset 0 1px color-mix(in srgb,#fff 12%,transparent);transition:opacity .16s ease,transform .16s ease,background .16s ease,box-shadow .16s ease;pointer-events:none}.learn-nav-item:active{transform:scale(.94)}.learn-nav-item.active{color:color-mix(in srgb,var(--accent) 82%,#0f172a 18%)}.learn-nav-item.active:before{opacity:1;transform:translate(-50%,-50%) scale(1);background:var(--nav-accent-tint);box-shadow:inset 0 1px 4px color-mix(in srgb,#fff 50%,transparent),0 0 12px color-mix(in srgb,var(--accent) 22%,transparent)}.learn-nav-icon{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;width:var(--nav-icon-size);height:var(--nav-icon-size);transition:transform .12s ease}.learn-shell--photo-bg .learn-bottom-nav{background:color-mix(in srgb,#0e131c 58%,transparent);border-color:color-mix(in srgb,#ffffff 16%,transparent);backdrop-filter:blur(28px) saturate(140%);-webkit-backdrop-filter:blur(28px) saturate(140%);box-shadow:0 14px 40px color-mix(in srgb,#000 42%,transparent),inset 0 1px color-mix(in srgb,#fff 10%,transparent)}.learn-shell--photo-bg .learn-nav-item{color:#e2e8f0;text-shadow:0 1px 3px rgba(0,0,0,.55)}.learn-shell--photo-bg .learn-nav-item.active{color:#fff}.learn-shell--photo-bg .learn-nav-item:before{background:var(--nav-accent-saturated-solid)}.learn-shell--photo-bg .learn-nav-item.active:before{background:var(--nav-accent-tint);box-shadow:inset 0 1px 4px color-mix(in srgb,#fff 55%,transparent),0 0 12px color-mix(in srgb,var(--accent) 20%,transparent)}.learn-info-title{margin:0 0 10px;font-size:1.05rem;font-weight:700}.learn-info-howto-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.learn-info-howto-row{display:flex;align-items:center;gap:12px;font-size:.86rem;line-height:1.35}.learn-info-howto-chip{flex:0 0 36px;width:36px;height:36px;border-radius:calc(var(--nav-chip-radius) - 2px);display:flex;align-items:center;justify-content:center;color:var(--accent);background:var(--nav-accent-saturated-solid);font-size:1.1rem}.learn-info-howto-chip svg{width:22px;height:22px}.learn-info-about p{margin:0 0 10px;line-height:1.45}.learn-nav-label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.learn-wallet-chip{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;font-size:.78rem;line-height:1.35}.learn-wallet-chip--inline{background:transparent;border-radius:0;padding:0}.learn-wallet-panel.focus-active{box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--accent) 45%,transparent)}.learn-wallet-chip-text{flex:1;min-width:0;color:var(--text)}.learn-wallet-chip-meta{color:var(--muted);font-size:.72rem;white-space:nowrap}.learn-hero-panel{padding-top:18px;padding-bottom:18px}.learn-hero-card-kicker{margin:0 0 8px;font-size:.6875rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.learn-hero-card-title{margin:0 0 8px;font-size:1.35rem;font-weight:800;line-height:1.2;letter-spacing:-.03em}.learn-hero-card-meta{margin:0 0 16px;font-size:.85rem;color:var(--muted)}.learn-home-cta--hero{margin-bottom:0;border-radius:999px;font-weight:700;font-size:1rem;padding:14px}.learn-home-cta--compact{display:inline-flex;align-items:center;justify-content:center;width:auto;min-width:0;margin-top:12px;padding:10px 18px;border-radius:999px;font-size:.88rem;font-weight:700}.learn-home-guide-title{margin:0 0 8px;font-size:1.05rem;font-weight:800;line-height:1.25}.learn-home-guide-lead{margin:0 0 12px;font-size:.82rem;line-height:1.4}.learn-home-guide-audio{margin-bottom:4px}.learn-home-guide-audio-label{margin:0 0 6px;font-size:.78rem;font-weight:600;color:var(--muted)}.learn-home-guide-fallback{margin:0 0 8px;font-size:.8rem}.course-progress-chart-title{margin:0 0 6px;font-size:1rem;font-weight:800}.course-progress-chart-lead{margin:0 0 12px;font-size:.78rem;line-height:1.35}.course-progress-chart-summary{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:14px}.course-progress-chart-stat{background:color-mix(in srgb,var(--accent) 10%,var(--surface-2));border-radius:10px;padding:8px 10px;display:flex;flex-direction:column;gap:2px}.course-progress-chart-stat-n{font-size:1.15rem;font-weight:800;color:var(--accent);line-height:1.1}.course-progress-chart-stat-k{font-size:.6875rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}.course-progress-chart-stat-sub{font-size:.6875rem}.course-progress-chart-bars{display:flex;align-items:flex-end;gap:5px;height:128px;padding:4px 2px 0;margin-bottom:8px}.course-progress-chart-col{flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;height:100%}.course-progress-chart-bar-track{flex:1;width:100%;display:flex;align-items:flex-end;justify-content:center}.course-progress-chart-bar-scope{width:100%;max-width:26px;min-height:10px;background:color-mix(in srgb,var(--muted) 20%,transparent);border-radius:6px 6px 4px 4px;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden}.course-progress-chart-bar-fill{width:100%;background:linear-gradient(180deg,color-mix(in srgb,var(--accent) 88%,#fff),var(--accent));border-radius:4px 4px 2px 2px;min-height:0;transition:height .35s ease}.course-progress-chart-lv{margin-top:6px;font-size:.6875rem;font-weight:700;color:var(--muted)}.course-progress-chart-lv.active{color:var(--accent)}.course-progress-chart-foot{margin:0;font-size:.6875rem;line-height:1.3}.learn-shell--photo-bg .course-progress-chart-bar-scope{background:color-mix(in srgb,#0a0f17 58%,transparent);border:1px solid color-mix(in srgb,#ffffff 12%,transparent)}.learn-home-stories-wrap{margin-bottom:12px}.learn-section-label{margin:0 0 4px 4px;font-size:.72rem;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}.learn-home-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.learn-credits-hint{margin:10px 0 0;font-size:.85rem;line-height:1.4}.learn-home-stats--scroll::-webkit-scrollbar{display:none}.learn-stat-pill{flex:0 0 auto;min-width:100px;background:var(--surface-2);border-radius:12px;padding:10px 12px;display:flex;flex-direction:column;gap:4px}.learning-path--feed .path-list{display:flex;flex-direction:column;gap:var(--learn-card-gap);list-style:none;margin:0;padding:0}.path-list-item{list-style:none}.learning-path--feed .path-item{margin-bottom:0;border-radius:0;border-left:none;background:transparent;padding:0;border:none}.learning-path--feed .path-item.path-next{outline:none;box-shadow:inset 0 0 0 2px var(--accent);background:color-mix(in srgb,var(--accent) 6%,transparent)}.learning-path--feed .path-progress-card{border-radius:0;background:transparent;border:none;padding:0}.learning-path--feed .path-item button{width:100%;margin-top:8px;border:none;border-radius:999px;padding:10px;background:var(--accent);color:#fff;font-weight:600;font-size:.85rem}.learn-hero--compact h1{font-size:1.1rem}.learn-hero--compact p{font-size:.82rem}.learn-brand-sub{margin:.1rem 0 .4rem;font-size:.6875rem;font-weight:500;line-height:1.25;letter-spacing:.02em;color:var(--muted);opacity:.72}.learn-hero-meta{margin:0;font-size:.78rem;color:var(--muted);line-height:1.35}.learn-lesson-detail{background:transparent;border-radius:0;padding:0;margin-bottom:0}.learn-lesson-panel.learn-glass-panel{margin-bottom:8px}.learn-lesson-detail-title{margin:0 0 10px;font-size:1rem}.learn-lesson-audio.learn-audio-player{margin-bottom:8px}.learn-lesson-listened-btn{width:100%;border:none;border-radius:8px;padding:10px;background:var(--accent);color:#0b1220;font-weight:600;margin-bottom:10px}.learn-shell--tabs .learning-path{margin:0}.learn-display{flex:1;min-height:0;display:flex;flex-direction:column;container-type:inline-size;--lesson-gap: max(4px, calc((min(100cqw, var(--learn-bar-max)) - 6 * var(--nav-chip-size)) / 7))}.learn-display>.learn-glass-panel{flex:1;min-height:0;width:100%;max-width:var(--learn-bar-max);margin:0 auto;display:flex;flex-direction:column;overflow:hidden}.learn-display .learn-lesson-panel.learn-glass-panel,.learn-display .learn-lesson-list-panel.learn-glass-panel{margin-bottom:0;padding:var(--lesson-gap);background:color-mix(in srgb,#fff 7%,transparent);backdrop-filter:blur(10px) saturate(140%);-webkit-backdrop-filter:blur(10px) saturate(140%);box-shadow:inset 0 1px color-mix(in srgb,#fff 30%,transparent);color:#fff;text-shadow:0 1px 2px color-mix(in srgb,#000 35%,transparent)}.learn-display .learn-lesson-list-panel.learn-glass-panel{background:linear-gradient(180deg,color-mix(in srgb,var(--brand-1) 14%,rgb(8 10 18 / .72)),#080a12a8);backdrop-filter:blur(22px) saturate(110%);-webkit-backdrop-filter:blur(22px) saturate(110%)}.learning-path--list .learn-lesson-list-row{--row-tint: var(--brand-1);border-color:color-mix(in srgb,color-mix(in srgb,var(--row-tint) 60%,#fff) 30%,transparent);background:linear-gradient(100deg,color-mix(in srgb,var(--row-tint) 24%,rgb(9 12 20 / .5)),color-mix(in srgb,var(--row-tint) 8%,rgb(9 12 20 / .34)));box-shadow:inset 0 1px color-mix(in srgb,#fff 12%,transparent);color:#fff}.learning-path--list .learn-lesson-list-row--recap{--row-tint: var(--brand-2)}.learning-path--list .learn-lesson-list-row--level-recap{--row-tint: #d4a017;border-color:color-mix(in srgb,#f5c542 60%,transparent)}.learning-path--list .learn-lesson-list-row.is-next{border-color:color-mix(in srgb,color-mix(in srgb,var(--row-tint) 45%,#fff) 85%,transparent);background:linear-gradient(100deg,color-mix(in srgb,var(--row-tint) 62%,rgb(9 12 20 / .4)),color-mix(in srgb,var(--row-tint) 30%,rgb(9 12 20 / .3)));box-shadow:inset 0 1px color-mix(in srgb,#fff 26%,transparent),0 0 16px color-mix(in srgb,var(--row-tint) 45%,transparent)}.learning-path--list .learn-lesson-list-num{border-radius:10px;border:1px solid color-mix(in srgb,color-mix(in srgb,var(--row-tint) 55%,#fff) 45%,transparent);background:linear-gradient(160deg,color-mix(in srgb,var(--row-tint) 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