:root{color-scheme:light;--app-blue:#247cce;--app-ink:#203e5c;--app-muted:#647c91}
*{-webkit-tap-highlight-color:transparent}body{background:#f3f7fb;color:var(--app-ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Trebuchet MS",sans-serif}header{max-width:900px;padding:14px 22px 4px;gap:14px}main{max-width:820px;margin:12px auto 36px;padding-inline:20px}a{text-decoration:none}button,a{touch-action:manipulation}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid #266eaf;outline-offset:4px}h1{font-size:clamp(29px,5.5vw,40px);letter-spacing:-1.2px;line-height:1.2;margin:20px 0 10px}.eyebrow{font-size:12px;letter-spacing:1.6px;color:var(--app-muted)}.sub{font-size:16px;color:#5b748a;line-height:1.6}.panel{background:#fff;border:1px solid #e5edf4;border-radius:28px;box-shadow:0 8px 30px #234e7505;padding:26px}.sound{background:#fff;border:1px solid #dce7f0;border-radius:16px;color:#315e82;font-size:14px;padding:11px 15px}.logo-window{width:clamp(150px,33vw,210px)}.primary{background:var(--app-blue);border-radius:17px;box-shadow:none;min-height:50px;padding:14px 24px;font-size:16px}.listen{border-radius:15px;background:#edf5fc;color:#296993;min-height:46px;padding:11px 17px}.quiet{text-decoration:none;background:#f1f5f9;border-radius:14px;color:#416b8d;margin:6px 0;padding:11px 15px;min-height:44px}.primary:disabled{background:#edf2f7;color:#7d91a3}.footer{color:#778b9d;font-size:13px}.feedback,.trace-status{color:#326781}.star-count{font-size:17px;color:#8b6817}.app-navigation{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:9px;width:100%;max-width:640px;margin:8px auto 28px;padding:9px;border-radius:25px;background:#eaf0f6}.app-nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;min-width:0;min-height:88px;padding:10px 5px;color:#627b90;border-radius:19px;text-decoration:none;transition:background .15s,transform .15s}.app-nav-item:hover{background:#f8fbfe}.app-nav-item:active{transform:scale(.96)}.app-nav-item[aria-current=page]{background:#fff;color:#176ab0;box-shadow:0 3px 12px #2555740b}.app-nav-icon{display:grid;place-items:center;width:43px;height:43px;font-size:25px;line-height:1;background:#daeaf8;border-radius:14px}.app-nav-item:nth-child(2) .app-nav-icon{background:#e7e5fb}.app-nav-item:nth-child(3) .app-nav-icon{background:#dceff8}.app-nav-item:nth-child(4) .app-nav-icon{background:#e2f0e9}.app-nav-item:nth-child(5) .app-nav-icon{background:#fff0d9}.app-nav-item:nth-child(6) .app-nav-icon{background:#f7e4ec}.app-nav-icon.urdu-nav-icon{font-family:Tahoma,serif;color:#367753;font-size:29px}.app-nav-label{font-size:12px;font-weight:600;line-height:1.25;text-align:center;overflow-wrap:anywhere}.activity,.set{box-shadow:none;border-radius:20px}.trace-tabs button,.mode-buttons button{border-radius:15px}.trace-tabs button[aria-pressed=true]{background:var(--app-blue)}.letter-index{color:var(--app-muted)}.trace-help,.hint{color:#607b91}.math-toolbar{gap:10px}.trace-actions{gap:9px}.app-nav-item[aria-current=page] .app-nav-label{color:#176ab0}
@media(max-width:500px){header{padding-inline:17px}main{padding-inline:15px;margin-top:10px}.app-navigation{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;padding:7px;max-width:380px;margin-bottom:23px;border-radius:23px}.app-nav-item{min-height:79px;padding:8px 4px;gap:6px}.app-nav-icon{width:39px;height:39px;font-size:23px;border-radius:13px}.app-nav-label{font-size:12px}.panel{padding:22px 16px;border-radius:24px}.sound{padding:10px 12px}.eyebrow{font-size:12px}.trace-actions .primary,.trace-actions .listen,.trace-actions .quiet{padding:11px 12px;font-size:14px}}
@media(prefers-reduced-motion:reduce){.app-nav-item{transition:none}}

/* Quiet, playful controls with lightweight rendering. */
body{background:#e5eff8}.logo-window{height:auto;overflow:visible}.logo-window img{display:block;position:static;left:auto;top:auto;width:100%;max-width:100%;height:auto;object-fit:contain}.panel{border:2px solid #d7e6f2;background:#fff;border-radius:28px;box-shadow:none}.app-navigation{background:#dbe8f3}.app-nav-item{min-height:94px}.app-nav-icon{width:48px;height:48px;border-radius:16px;font-size:28px}.app-nav-label{font-size:13px;font-weight:700}.app-nav-item[aria-current=page]{box-shadow:inset 0 -3px 0 #a6d6f6}.primary{background:#2384ce;min-height:54px;border-bottom:3px solid #1c6aa5}.listen,.quiet,.sound{min-height:48px}.primary:active,.listen:active,.quiet:active{transform:translateY(1px)}.panel h2{line-height:1.3}.activity,.set{border-width:2px;min-height:72px}.board{border:2px solid #b9d9ee}.progressbar{height:12px}.progressbar div{transition:none;background:#42abc9}.star-count{background:#fff5d9;border-radius:14px;padding:8px 12px;display:inline-block}.confetti i{width:8px;height:12px}.trace-tabs button{font-weight:700}.sound{flex-shrink:0}
@media(max-width:500px){.app-nav-item{min-height:85px}.app-nav-icon{width:43px;height:43px;font-size:25px}.logo-window{width:clamp(145px,42vw,190px)}.panel{padding:22px 16px}.app-navigation{margin-bottom:20px}.choices{gap:14px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}