*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #FDF6F0;--card-bg: #FFFFFF;--card-border: #B8C4D0;--card-border-hover: #8FA3B4;--shapes: #FCE4EE;--colours: #FFF3D4;--numbers: #D8F2E8;--letters: #E4E0FF;--primary: #5C50A8;--muted: #9B90C8;--heading: #3D3578;--danger: #D94F5C;--radius: 16px;--radius-sm: 10px}html,body{font-family:Quicksand,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:#333;height:100dvh;overflow:hidden;position:fixed;width:100%;-webkit-tap-highlight-color:transparent;-webkit-font-smoothing:antialiased;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;overscroll-behavior:none}#root{height:100dvh;overflow:hidden}h1,h2,h3{color:var(--heading);font-weight:700}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border:2px solid 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0deg) at 50% 50%,rgba(92,80,168,0) 0%,rgba(92,80,168,.5) 10%,rgba(228,224,255,.8) 15%,rgba(252,228,238,.6) 25%,rgba(92,80,168,0) 35%,rgba(92,80,168,0) 50%,rgba(216,242,232,.6) 60%,rgba(228,224,255,.8) 65%,rgba(92,80,168,.5) 70%,rgba(92,80,168,0) 80%,rgba(255,243,212,.6) 90%,rgba(92,80,168,0) 100%) border-box;-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;padding:5px;animation:glowRotate 4s linear infinite,glowPulse 2s ease-in-out infinite}.lesson-page-glow:after{content:"";position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:51;background-image:radial-gradient(2px 2px at 10% 5%,rgba(255,255,255,.9) 50%,transparent 100%),radial-gradient(2px 2px at 25% 2%,rgba(228,224,255,.8) 50%,transparent 100%),radial-gradient(3px 3px at 50% 1%,rgba(255,255,255,.9) 50%,transparent 100%),radial-gradient(2px 2px at 75% 3%,rgba(252,228,238,.8) 50%,transparent 100%),radial-gradient(2px 2px at 90% 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360deg}}@keyframes glowPulse{0%,to{opacity:.7}50%{opacity:1}}@keyframes glowStars{0%,to{opacity:.4}50%{opacity:1}}@property --glow-angle{syntax: "<angle>"; initial-value: 0deg; inherits: false;}.lesson-controls{display:flex;justify-content:center;gap:24px;padding:12px;padding-bottom:max(12px,env(safe-area-inset-bottom));position:relative;z-index:60}.super-tick-area{position:absolute;left:12px;bottom:max(12px,env(safe-area-inset-bottom))}.control-super-tick{width:44px!important;height:44px!important;min-width:44px!important;min-height:44px!important;border-radius:10px!important;background:#e4e0ff!important;border-color:#9b90c8!important;opacity:.7}.control-super-tick:hover{opacity:1}.control-btn{width:80px;height:80px;border-radius:20px;display:flex;align-items:center;justify-content:center;border:2px solid 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