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.18s var(--ease);background:oklch(0% 0 0/.55);border-radius:999px;justify-content:center;align-items:center;gap:6px;display:inline-flex}.player-disc--wide{padding:0 10px 0 12px}.player-button:active .player-disc{transform:scale(.94)}.player-play-icon{margin-left:2px}.player-time{font-variant-numeric:tabular-nums;text-shadow:0 1px 2px oklch(0% 0 0/.6);padding-left:4px;font-size:.8125rem;font-weight:500}.player-time-total{opacity:.75}.player-speed{font-variant-numeric:tabular-nums;font-size:.8125rem;font-weight:600}.player.is-idle .player-bar{background:0 0;grid-template-columns:auto;padding:0 0 12px 8px}.player.is-idle .player-bar>:not(.player-play){display:none}.player.is-idle .player-disc{width:48px;height:48px}.player-icon{color:#fff;place-items:center;width:44px;height:44px;display:grid}.player-scrubber{grid-column:1/-1;margin:0 8px;position:relative}.player-scrub{appearance:none;touch-action:none;cursor:pointer;--track:oklch(100% 0 0/.25);--loaded:oklch(100% 0 0/.45);background:0 0;width:100%;height:44px;margin:0;padding:0;display:block}.player-scrub::-webkit-slider-runnable-track{background:linear-gradient(to right, #fff calc(var(--played) * 100%), var(--loaded) calc(var(--played) * 100%) calc(var(--buffered) * 100%), var(--track) calc(var(--buffered) * 100%));border-radius:999px;height:4px}.player-scrub::-moz-range-track{background:linear-gradient(to right, #fff calc(var(--played) * 100%), var(--loaded) calc(var(--played) * 100%) calc(var(--buffered) * 100%), var(--track) calc(var(--buffered) * 100%));border-radius:999px;height:4px}.player-scrub::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;transition:transform .18s var(--ease), box-shadow .18s var(--ease);background:#fff;border-radius:50%;margin-top:-8px;transform:scale(.65);box-shadow:0 0 oklch(100% 0 0/.25)}.player-scrub::-moz-range-thumb{width:20px;height:20px;transition:transform .18s var(--ease), box-shadow .18s var(--ease);background:#fff;border:0;border-radius:50%;transform:scale(.65);box-shadow:0 0 oklch(100% 0 0/.25)}.player-scrubber.is-scrubbing .player-scrub::-webkit-slider-thumb{transform:scale(1.2);box-shadow:0 0 0 8px oklch(100% 0 0/.25)}.player-scrubber.is-scrubbing .player-scrub::-moz-range-thumb{transform:scale(1.2);box-shadow:0 0 0 8px oklch(100% 0 0/.25)}.player-scrub:focus-visible{outline-offset:-6px}.player-scrub-tip{bottom:calc(100% - 4px);left:clamp(28px, calc(10px + var(--played) * (100% - 20px)), calc(100% - 28px));font-variant-numeric:tabular-nums;pointer-events:none;animation:fade-in .12s var(--ease) backwards;background:oklch(0% 0 0/.75);border-radius:6px;padding:4px 8px;font-size:.9375rem;font-weight:600;position:absolute;translate:-50%}.player-skip{color:#fff;font-variant-numeric:tabular-nums;pointer-events:none;animation:skip-pop .7s var(--ease) both;background:oklch(0% 0 0/.55);border-radius:999px;padding:10px 16px;font-size:1.0625rem;font-weight:600;position:absolute;top:50%;translate:0 -50%}.player-skip--back{left:10%}.player-skip--forward{right:10%}@keyframes skip-pop{0%{opacity:0;transform:scale(.85)}20%{opacity:1;transform:none}70%{opacity:1}to{opacity:0}}.player-loading{height:2px;position:absolute;inset:auto 0 0;overflow:hidden}.player-loading:after{content:"";width:40%;animation:loading-line 1.1s var(--ease) infinite;background:oklch(100% 0 0/.8);position:absolute;inset:0}@keyframes loading-line{0%{transform:translate(-100%)}to{transform:translate(250%)}}.player-error{background:var(--surface);text-align:center;place-content:center;justify-items:center;gap:12px;padding:16px 24px;display:grid;position:absolute;inset:0}.player-error p{max-width:30ch;color:var(--error);font-weight:500}.player.is-theater{z-index:var(--z-theater);place-items:center;display:grid;position:fixed;inset:0}.player.is-theater .player-frame{background:#000;width:100%;height:auto;max-height:100%}@media (orientation:portrait){.player.is-theater .player-frame{width:min(var(--tg-viewport-height,100dvh), calc(100vw * 16 / 9));max-height:none;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)rotate(90deg)}}.player-end{color:#fff;animation:fade-in .24s var(--ease) backwards;background:oklch(0% 0 0/.8);place-items:center;padding:12px 16px;display:grid;position:absolute;inset:0}.player-end-collapse{position:absolute;top:0;right:0}.end{justify-items:start;gap:10px;width:min(100%,26rem);display:grid}.end-done{color:var(--aqua);align-items:center;gap:6px;font-size:.9375rem;font-weight:600;display:inline-flex}.end-done.is-pending{color:oklch(100% 0 0/.8)}.end-next{text-align:left;width:calc(100% + 16px);transition:background-color .18s var(--ease);border-radius:14px;align-items:center;gap:12px;margin:0 -8px;padding:6px 8px;display:flex}.end-next:active{background:oklch(100% 0 0/.1)}.end-next:disabled{cursor:progress}.poster--end{background:oklch(100% 0 0/.1);border-radius:10px;flex:none;width:112px}.end-next-icon{background:oklch(0% 0 0/.35);place-items:center;display:grid;position:absolute;inset:0}.end-next-icon svg{background:oklch(0% 0 0/.55);border-radius:50%;width:32px;height:32px;padding:7px}.end-next-text{gap:2px;min-width:0;display:grid}.end-next-label{color:oklch(100% 0 0/.78);font-size:.9375rem;line-height:1.35}.end-next-title{-webkit-line-clamp:2;-webkit-box-orient:vertical;font-weight:600;line-height:1.3;display:-webkit-box;overflow:hidden}.end-note{color:oklch(100% 0 0/.86);text-wrap:pretty;max-width:34ch;font-size:.9375rem;line-height:1.45}.end-replay{min-height:44px;transition:background-color .18s var(--ease);border-radius:14px;align-items:center;gap:8px;margin-left:-12px;padding:0 12px;font-size:.9375rem;font-weight:500;display:inline-flex}.end-replay:active{background:oklch(100% 0 0/.1)}:is(.player:fullscreen .end,.player.is-theater .end){gap:16px}:is(.player:fullscreen .poster--end,.player.is-theater .poster--end){width:176px}.player:fullscreen{place-items:center;display:grid}.player:fullscreen .player-frame{background:#000;width:100%;max-height:100%}.tool{background:var(--surface-2);height:44px;color:var(--text);white-space:nowrap;transition:background-color .18s var(--ease);border-radius:14px;justify-content:center;align-items:center;padding:0 14px;font-size:.9375rem;font-weight:500;display:inline-flex}.tool:active{background:var(--line)}.sheet-layer{z-index:1;position:fixed;inset:0}.sheet-backdrop{width:100%;height:100%;animation:fade-in .18s var(--ease) backwards;background:oklch(0% 0 0/.5);position:absolute;inset:0}.sheet{max-width:32rem;padding:4px 16px calc(16px + var(--tg-safe-area-inset-bottom,0px));background:var(--surface);color:var(--text);animation:sheet-in .24s var(--ease) backwards;border-radius:20px 20px 0 0;margin:0 auto;position:absolute;inset:auto 0 0}:is(.player:fullscreen .sheet,.player.is-theater .sheet){--surface:var(--night-raised);--surface-2:var(--night-elevated);--text:var(--starlight);--text-dim:var(--starlight-dim);--accent-text:var(--indigo-glow)}@keyframes sheet-in{0%{transform:translateY(100%)}}.sheet-title{color:var(--text-dim);margin:16px 0 8px;font-size:.9375rem;font-weight:500}.sheet-options{gap:8px;display:flex}.sheet-option{background:var(--surface-2);min-width:0;height:48px;color:var(--text);font-variant-numeric:tabular-nums;transition:border-color .18s var(--ease), transform .18s var(--ease);border:1.5px solid #0000;border-radius:14px;flex:1 1 0;font-size:.9375rem;font-weight:500}.sheet-option:active{transform:scale(.96)}.sheet-option[aria-checked=true]{border-color:var(--accent-text);font-weight:600}.player-resume{max-width:40rem;color:var(--text-dim);flex-wrap:wrap;align-items:center;column-gap:4px;margin:0 auto;padding:8px 16px 0;font-size:.9375rem;display:flex}.ghost{min-height:44px;color:var(--accent-text);align-items:center;padding:0 12px;font-size:.9375rem;font-weight:500;display:inline-flex}.poster--cover{border-radius:0}.poster--cover:after{content:"";background:linear-gradient(#0000 55%,oklch(0% 0 0/.45));position:absolute;inset:0}.cover-lock{z-index:1;color:oklch(100% 0 0);background:oklch(0% 0 0/.55);border-radius:50%;place-items:center;width:48px;height:48px;display:grid;position:absolute;bottom:16px;left:16px}.gate{background:var(--surface);border:1px solid var(--edge);border-radius:20px;gap:8px;margin-top:20px;padding:16px;display:grid}.gate-price{font-variant-numeric:tabular-nums;font-size:1.4375rem;font-weight:600;line-height:1.2}.gate-text{color:var(--text-dim);text-wrap:pretty}.gate-row{text-align:left;width:calc(100% + 16px);transition:background-color .18s var(--ease);border-radius:14px;align-items:center;gap:14px;margin:-8px -8px 0;padding:8px;display:flex}.gate-row:active{background:var(--surface-2)}.gate-label{color:var(--text-dim);font-size:.9375rem;line-height:1.35}.prose--cut>:last-child{-webkit-mask-image:linear-gradient(#000 30%,#0000);mask-image:linear-gradient(#000 30%,#0000)}.prose-more{color:var(--text-dim);margin-top:4px;font-size:.9375rem}.lesson-body{max-width:40rem;margin:0 auto;padding:20px 16px 0}.kicker{color:var(--text-dim);margin-bottom:6px;font-size:.9375rem;line-height:1.35}.lesson-facts{color:var(--text-dim);font-variant-numeric:tabular-nums;align-items:center;gap:12px;margin-top:8px;font-size:.9375rem;display:flex}.done-badge{color:var(--progress-text);animation:fade-in .18s var(--ease) backwards;align-items:center;gap:4px;font-weight:500;display:inline-flex}@keyframes fade-in{0%{opacity:0}}.prose{max-width:65ch;font-size:1.0625rem;line-height:var(--lh-prose)}.prose p,.prose ul,.prose ol{text-wrap:pretty;margin:0 0 .9em}.prose ul,.prose ol{padding-left:1.25em}.prose h3{margin:1.4em 0 .4em;font-size:1.0625rem;font-weight:600}.prose>:last-child{margin-bottom:0}.reactions{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:12px;display:grid}.reaction{background:var(--surface);min-height:68px;transition:background-color .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease);border:1.5px solid #0000;border-radius:14px;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:8px 2px;display:flex}.reaction:active{transform:scale(.95)}.reaction[aria-pressed=true]{border-color:var(--accent-text);background:var(--surface-2)}.reaction-top{align-items:center;gap:6px;display:inline-flex}.reaction-emoji{font-size:1.5rem;line-height:1}.reaction-name{color:var(--text-dim);font-size:.8125rem;line-height:1.2}.reaction[aria-pressed=true] .reaction-name{color:var(--text)}.reaction-count{color:var(--text-dim);font-variant-numeric:tabular-nums;font-size:.8125rem;font-weight:500}.moment{z-index:1;overscroll-behavior:contain;padding:calc(24px + var(--tg-safe-area-inset-top,0px) + var(--tg-content-safe-area-inset-top,0px)) 16px calc(24px + var(--tg-safe-area-inset-bottom,0px));background:var(--bg);color:var(--text);animation:fade-in .24s var(--ease) backwards;display:flex;position:fixed;inset:0;overflow-y:auto;container:moment/size}.moment-inner{align-content:center;gap:24px;width:100%;max-width:30rem;margin:auto;display:grid}.moment-map{background:var(--surface);border:1px solid var(--edge);border-radius:20px;gap:12px;padding:16px 16px 20px;display:grid}.moment-text{gap:8px;display:grid}.moment-text h2:focus{outline:none}.moment-close{justify-self:center}@container moment (orientation:landscape) and (height<=560px){.moment-inner{grid-template-columns:1fr 1fr;grid-template-areas:"map next""text next""text close";gap:16px 32px;max-width:56rem;margin:auto}.moment-map{grid-area:map}.moment-text{grid-area:text;align-self:start}.moment-next{grid-area:next;place-self:end center;width:min(100%,85.3333cqh)}.moment-text .display{font-size:1.4375rem}.moment-close{grid-area:close}}.starmap--draw .starmap-lines{animation:starmap-draw .7s var(--ease) .2s backwards}.starmap--draw .star-dot{animation:star-light .24s var(--ease) calc(.2s + var(--at) * .7s) backwards}.moment-text,.moment-next,.moment-close{animation:rise-in .24s var(--ease) .9s backwards}@keyframes starmap-draw{0%{clip-path:inset(0 100% 0 0)}to{clip-path:inset(0)}}@keyframes star-light{0%{border-color:var(--line);background:var(--surface);color:#0000;transform:scale(.8)}}@keyframes rise-in{0%{opacity:0;transform:translateY(8px)}}@media (orientation:portrait){.player.is-theater .moment{width:var(--tg-viewport-height,100dvh);height:100vw;inset:50% auto auto 50%;transform:translate(-50%,-50%)rotate(90deg)}}.message{min-height:var(--tg-viewport-stable-height,100dvh);align-content:center;justify-items:start;gap:12px;display:grid}.message-logo{width:128px;height:auto;margin-bottom:24px}.message-text{max-width:36ch;color:var(--text-dim)}.button-secondary{background:var(--surface);height:52px;transition:background-color .18s var(--ease);border-radius:14px;justify-content:center;align-items:center;margin-top:12px;padding:0 20px;font-size:.9375rem;font-weight:500;display:inline-flex}.button-secondary:active{background:var(--surface-2)}.skeleton{background:var(--surface);border-radius:10px;animation:1.6s ease-in-out infinite skeleton;display:block}@keyframes skeleton{50%{opacity:.55}}.sk-headline{width:75%;height:28px;margin:8px 0}.sk-title{width:40%;height:24px;margin-bottom:12px}.sk-line{width:60%;height:18px}.sk-line--short{width:35%}.sk-text{width:100%;height:18px;margin-bottom:10px}.module .skeleton{background:var(--surface-2)}.module .sk-title,.module .sk-headline{margin:0}.module .sk-map{background:radial-gradient(circle at 8% 62%, var(--surface-2) 10px, transparent 11px), radial-gradient(circle at 50% 30%, var(--surface-2) 10px, transparent 11px), radial-gradient(circle at 92% 62%, var(--surface-2) 10px, transparent 11px);border-radius:0;height:72px}.sk-poster{aspect-ratio:16/9;border-radius:14px}.sk-row{height:48px;margin:12px 0 24px}.sk-video{aspect-ratio:16/9;border-radius:0}.sk-channel{border-radius:20px;height:78px}.sk-field{border-radius:14px;height:128px;margin-top:12px}.dev-back{z-index:var(--z-dev);background:var(--surface-2);border-radius:10px;height:36px;padding:0 12px;font-size:.8125rem;position:fixed;top:8px;left:8px}.dev-main{z-index:var(--z-dev);background:var(--accent);color:#fff;border-radius:14px;height:52px;font-weight:500;position:fixed;bottom:16px;left:16px;right:16px}body.has-dev-main{padding-bottom:84px}body.has-dev-back .page:not(.page--lesson){padding-top:56px}@media (prefers-reduced-motion:reduce){.view,.done-badge,.live-sent,.player-end,.moment,.moment-text,.moment-next,.moment-close,.starmap--draw .starmap-lines,.starmap--draw .star-dot{animation:none}.star[data-state=current] .star-dot:after{display:none}.skeleton{animation:none}.player-frame:has(.player-poster:not(.is-ready)):before{animation:none}.player-loading:after{opacity:.5;width:100%;animation:none}.gate-row,.ask{transition:none}.sheet{animation:fade-in .18s var(--ease) backwards}.player-skip{animation:none}.player-disc,.sheet-option{transition:none}.player-scrub::-webkit-slider-thumb{transition:none}.player-scrub::-moz-range-thumb{transition:none}}