:root{--fb-bg: #f2f2f7;--fb-card: #ffffff;--fb-text: #000000;--fb-hint: #8e8e93;--fb-accent: #2481cc;--fb-danger: #e5484d;--bg: var(--tg-theme-secondary-bg-color, var(--fb-bg));--card: var(--tg-theme-section-bg-color, var(--tg-theme-bg-color, var(--fb-card)));--text: var(--tg-theme-text-color, var(--fb-text));--hint: var(--tg-theme-hint-color, var(--fb-hint));--accent: var(--tg-theme-button-color, var(--fb-accent));--accent-text: var(--tg-theme-button-text-color, #ffffff);--link: var(--tg-theme-link-color, var(--accent));--danger: var(--tg-theme-destructive-text-color, var(--fb-danger));--ok: #2fb15d;--warn: #e8930c;--line: color-mix(in srgb, var(--hint) 24%, transparent);--soft: color-mix(in srgb, var(--hint) 13%, transparent);--safe-bottom: var(--tg-safe-area-inset-bottom, env(safe-area-inset-bottom, 0px));--sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace}@media(prefers-color-scheme:dark){:root{--fb-bg: #0f0f10;--fb-card: #1c1c1e;--fb-text: #ffffff;--fb-hint: #8d8d93;--fb-accent: #3e88f7}}*{box-sizing:border-box}html{height:100%;overscroll-behavior:none;background:var(--bg)}body{margin:0;position:fixed;inset:0;overflow:hidden;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;-webkit-font-smoothing:antialiased;overscroll-behavior:none;touch-action:manipulation;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}#root{height:100%}button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}.app{position:relative;height:100%;overflow:hidden}.screen{position:absolute;inset:0;display:flex;flex-direction:column;background:var(--bg)}.screen--hidden{visibility:hidden}.screen--enter{animation:push-in .34s cubic-bezier(.2,.8,.2,1) backwards;box-shadow:-12px 0 32px #0000002e}.screen--leave{animation:push-out .24s cubic-bezier(.4,0,1,1) 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0px));display:flex;flex-direction:column;gap:22px}.pad--center{align-items:center;justify-content:center}.pad>*{flex-shrink:0}.stack{display:flex;flex-direction:column}.stack--6{gap:6px}.stack--8{gap:8px}.stack--10{gap:10px}.stack--12{gap:12px}.stack--center{align-items:center;text-align:center}.title{margin:0;font-size:26px;line-height:1.15;font-weight:700;letter-spacing:-.02em}.sub{margin:0;font-size:15.5px;line-height:1.4;color:var(--hint)}.muted{margin:0;font-size:14px;line-height:1.45;color:var(--hint)}.muted--center{text-align:center}.ink{color:var(--text);font-weight:600}.link{color:var(--link);font-weight:500}.hero{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;padding-top:8px}.hero__logo{width:76px;height:76px;margin-bottom:4px;border-radius:50%;display:grid;place-items:center;font-size:32px;font-weight:700;color:var(--accent-text);background:linear-gradient(145deg,color-mix(in srgb,var(--accent) 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.plan__radio:after{content:"";width:12px;height:12px;border-radius:50%;background:var(--accent)}.plan+.plan:before{left:50px}.pill{flex:0 0 auto;min-width:96px;height:34px;padding:0 14px;border-radius:17px;display:flex;align-items:center;justify-content:center;font-size:14.5px;font-weight:600;color:var(--accent-text);background:var(--accent)}.pill:disabled{color:var(--hint);background:var(--soft)}.text-btn--small{height:38px;font-size:14.5px}.text-btn:disabled{opacity:.5}.seller{margin:0 4px;font-size:12.5px;line-height:1.45;color:var(--hint)}.receipt{display:flex;flex-direction:column;gap:9px;padding-bottom:8px}.receipt__head{margin:0 0 4px;font-size:15px;font-weight:600;text-transform:uppercase;letter-spacing:.03em;color:var(--hint)}.receipt__row{display:flex;justify-content:space-between;gap:16px;font-size:14.5px;line-height:1.35}.receipt__key{flex:0 0 auto;color:var(--hint)}.receipt__val{text-align:right;overflow-wrap:anywhere}button.row:disabled{opacity:1;cursor:default}.hint-line{margin:-12px 4px 0;font-size:13px;line-height:1.4;color:var(--hint)}.lesson{padding:4px 16px 18px;display:flex;flex-direction:column;gap:14px}.lesson--empty{padding-top:0}.video{position:relative;aspect-ratio:16 / 9;border-radius:14px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#2b2b30,#45454d)}.video__play{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;background:#ffffff2e}.video__time{position:absolute;right:10px;bottom:8px;padding:2px 7px;border-radius:6px;font-size:12.5px;background:#0000008c}.lesson__label{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.02em;color:var(--hint)}.lesson__steps{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:8px;font-size:15px;line-height:1.45}.lesson__tip{margin:0;padding:12px 14px;border-radius:12px;font-size:14.5px;line-height:1.45;background:color-mix(in srgb,var(--accent) 12%,transparent)}.row__chev--open{transform:rotate(90deg)}