#tca-lesson-root,#tca-arcade-root,#tca-charts-root{--mango:#ffb347;--sky:#5bc0eb;--leaf:#9bc53d;--sun:#ffd93d;--coral:#f78ba8;--ivory:#fdf9f4;--ink:#1c1310;--ink2:#3d2b1f;--radius:24px;--gap:16px;font-family:"Baloo 2",system-ui,-apple-system,Segoe UI,sans-serif;color:var(--ink);text-align:left;background:radial-gradient(circle at 10% 14%,rgb(91 192 235 / .12),transparent 36%),radial-gradient(circle at 90% 10%,rgb(155 197 61 / .12),transparent 38%),radial-gradient(circle at 78% 92%,rgb(255 179 71 / .12),transparent 42%),radial-gradient(circle at 18% 88%,rgb(177 144 245 / .1),transparent 40%),var(--ivory);display:block;width:100vw;position:relative;left:50%;margin-left:-50vw;padding:12px clamp(16px,4vw,56px)}.tca-player{max-width:1400px;margin:0 auto}body.tca-app .entry-header,body.tca-app .entry-title,body.tca-app .entry-meta,body.tca-app .post-meta,body.tca-app .page-header,body.tca-app .ast-single-post-order{display:none!important}body.tca-app .site-content .ast-container,body.tca-app .site-content #primary,body.tca-app .site-content .entry-content{max-width:100%;width:100%}body.tca-app #primary,body.tca-app .site-main,body.tca-app .ast-container,body.tca-app .ast-article-single,body.tca-app .entry-content{padding-top:0!important;margin-top:0!important}.tca-topbar{display:flex;align-items:center;gap:12px;margin-bottom:12px}.tca-topbar__title{font-weight:800;color:var(--ink2);font-size:1.05rem}.tca-lessonbadge{display:inline-flex;align-items:center;justify-content:center;font-weight:800;color:#fff;border-radius:999px;padding:6px 16px;font-size:1rem;letter-spacing:.02em;white-space:nowrap;box-shadow:0 3px #0000001f}.tca-lessonbadge--onhue{background:#ffffff38}#tca-lesson-root :lang(ta),#tca-lesson-root [lang=ta]{font-family:Noto Sans Tamil,sans-serif;line-height:1.5}#tca-lesson-root *,#tca-lesson-root *:before,#tca-lesson-root *:after{box-sizing:border-box}.tca-player{display:flex;flex-direction:column;gap:var(--gap);min-height:60vh}.tca-portal{max-width:1100px;margin:0 auto;display:flex;flex-direction:column;gap:24px;padding-bottom:32px}.tca-portal__head{display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;padding:16px 0 4px}.tca-portal__head--course{position:relative;color:#fff;border-radius:28px;padding:22px 16px 18px;box-shadow:0 6px #0000001a}.tca-portal__title{font-size:2rem;font-weight:800;margin:4px 0 0}.tca-portal__sub{margin:0;font-weight:700;color:var(--ink2)}.tca-portal__back{position:absolute;left:16px;top:16px;width:44px;height:44px;border-radius:50%;background:#ffffff40;color:#fff;display:grid;place-items:center;font-size:1.5rem;font-weight:800;text-decoration:none}.tca-coursegrid{display:grid;grid-template-columns:1fr;gap:18px}@media (min-width:640px){.tca-coursegrid{grid-template-columns:repeat(3,1fr)}}.tca-coursecard{position:relative;display:flex;flex-direction:column;gap:4px;min-height:168px;padding:22px;border-radius:26px;color:#fff;text-decoration:none;box-shadow:0 7px #0000001f;transition:transform .12s,box-shadow .12s}.tca-coursecard:hover{transform:translateY(-4px);box-shadow:0 11px #0000001f}.tca-coursecard__level{font-size:.95rem;font-weight:800;opacity:.85;letter-spacing:.04em}.tca-coursecard__title{font-size:1.5rem;font-weight:800;line-height:1.2}.tca-coursecard__meta{font-weight:700;opacity:.92}.tca-coursecard__ring{position:absolute;right:18px;bottom:16px}.tca-coursecard__tag{position:absolute;right:16px;top:14px;padding:3px 11px;border-radius:999px;font-size:.8rem;font-weight:800;backdrop-filter:blur(2px)}.tca-coursecard__tag--owned{background:#ffffffeb;color:#1b7a44}.tca-coursecard__tag--locked{background:#00000047;color:#fff}.tca-lessongrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}.tca-lessoncard{display:flex;align-items:center;gap:12px;padding:14px;border-radius:20px;background:#fff;border:3px solid #f0e3cf;text-decoration:none;color:var(--ink);box-shadow:0 5px #0000000f;transition:transform .12s,border-color .12s;overflow:hidden}.tca-lessoncard:hover{transform:translateY(-3px);border-color:var(--mango)}.tca-lessoncard__badge{flex:0 0 auto;width:46px;height:46px;border-radius:14px;color:#fff;display:grid;place-items:center;font-weight:800;font-size:1.3rem;box-shadow:0 3px #0000001f}.tca-lessoncard__title{flex:1;min-width:0;font-weight:700;font-size:1rem;line-height:1.2;word-break:normal;overflow-wrap:normal}.tca-lessoncard__free{flex:0 0 auto;padding:2px 10px;border-radius:999px;background:var(--leaf);color:#fff;font-weight:800;font-size:.72rem;letter-spacing:.02em;text-transform:uppercase}.tca-lessoncard--locked{opacity:.72;filter:grayscale(.5);box-shadow:0 3px #0000000d}.tca-lessoncard--locked:hover{transform:none;border-color:#ece2d0}.tca-lessoncard__lock{flex:0 0 auto;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;font-size:1.15rem;background:#ece4d8;color:#8a7d72}.tca-ring__bg{stroke:#ffffff73}.tca-lessoncard .tca-ring__bg{stroke:#efe7da}.tca-ring__fg{stroke:#fff;stroke-linecap:round;transition:stroke-dashoffset .6s ease}.tca-lessoncard .tca-ring__fg{stroke:var(--leaf)}.tca-ring__txt{font-size:.7rem;font-weight:800;fill:currentColor}.tca-lessoncard .tca-ring__txt{fill:var(--ink2)}.tca-coursecard .tca-ring__txt{fill:#fff}@media (prefers-reduced-motion:reduce){.tca-coursecard:hover,.tca-lessoncard:hover{transform:none}.tca-ring__fg{transition:none}}.tca-topnav{display:flex;align-items:center;gap:16px;flex-wrap:wrap;max-width:1400px;margin:0 auto 18px;padding:10px 16px;background:linear-gradient(135deg,#ffe7c2,#ffd79e);border:3px solid #f3c98a;border-radius:999px;box-shadow:0 4px #00000014}.tca-topnav__links{display:flex;gap:6px;flex:1;flex-wrap:wrap}.tca-topnav__link{font-weight:800;text-decoration:none;color:var(--ink);padding:8px 18px;border-radius:999px;border:2px solid #fff0;white-space:nowrap}.tca-topnav__link:hover{background:#ffffff80}.tca-topnav__link.is-active{background:var(--c,#d97706);color:#fff;box-shadow:0 2px #0000001f}.tca-topnav__child{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink2);font-weight:800;background:#fff;border:2px solid #f3c98a;border-radius:999px;padding:6px 14px 6px 6px}.tca-topnav__avatar{width:30px;height:30px;border-radius:50%;background:var(--mango);color:#fff;display:grid;place-items:center}.tca-topnav__childname{max-width:12ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tca-dash{background:linear-gradient(135deg,#fff,#fff6e6);border:3px solid #f0e3cf;border-radius:22px;padding:18px 20px;display:flex;flex-direction:column;gap:14px;box-shadow:0 5px #0000000d}.tca-dash__stats{display:flex;gap:14px;flex-wrap:wrap}.tca-dash__stat{flex:1 1 120px;min-width:110px;text-align:center;background:#fffdf8;border-radius:16px;padding:14px 10px;border:2px solid #f0e3cf}.tca-dash__num{display:block;font-size:2rem;font-weight:800;color:var(--mango);line-height:1}.tca-dash__label{font-weight:700;color:var(--ink2);font-size:.9rem}.tca-dash__continue{align-self:flex-start}.tca-dash__certs{display:flex;flex-wrap:wrap;gap:8px}.tca-certchip{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:999px;background:#fff7e0;border:2px solid var(--sun);color:var(--ink2);font-weight:800;text-decoration:none}.tca-certchip:hover{background:#fff0c4}.tca-childbar{display:flex;flex-wrap:wrap;align-items:center;gap:12px;background:#fff;border:3px solid #f0e3cf;border-radius:20px;padding:12px 16px;box-shadow:0 4px #0000000d}.tca-childbar__who{font-weight:700;color:var(--ink2)}.tca-childbar__chips{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.tca-childbar__add{display:flex;gap:6px;align-items:center}.tca-childbar__input{font:inherit;padding:8px 12px;border:2px solid #e6ddce;border-radius:999px;min-width:130px}.tca-chip{font:inherit;font-weight:800;cursor:pointer;padding:8px 16px;border-radius:999px;border:2px solid #e6ddce;background:#fff;color:var(--ink2);min-height:40px}.tca-chip.is-on{background:var(--mango);border-color:var(--mango);color:#fff}.tca-chip--add{border-style:dashed;color:var(--sky);border-color:var(--sky)}.tca-coursecard__lock{position:absolute;right:18px;top:16px;font-size:1.4rem;filter:drop-shadow(0 1px 1px rgb(0 0 0 / .3))}.tca-gate{display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;color:#fff;border-radius:var(--radius);padding:36px 24px;box-shadow:0 8px #0000001f;max-width:560px;margin:0 auto}.tca-gate__lock{font-size:2rem}.tca-gate__title{font-size:1.7rem;font-weight:800;margin:0}.tca-gate__msg{margin:0;font-weight:600;opacity:.95;max-width:36ch}.tca-gate__note{font-weight:800}.tca-gate__back{color:#fff;opacity:.9;font-weight:700;text-decoration:underline;margin-top:4px}.tca-gate__signin{color:#fff;opacity:.92;font-weight:700;text-decoration:underline;margin-top:2px}.tca-btn--light{background:#fff;color:var(--ink)}.tca-guestnote{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;justify-content:center;margin:0 0 14px;padding:12px 16px;border-radius:14px;background:#eef7ff;border:2px solid #bfe0ff;font-weight:700;line-height:1.4}.tca-guestnote__btn{flex:0 0 auto;padding:8px 18px;border-radius:999px;background:var(--mango,#f59e0b);color:#fff;font-weight:800;text-decoration:none;box-shadow:0 3px #0000001f}.tca-guestnote__btn:hover{filter:brightness(.96)}.tca-start,.tca-finish{display:flex;flex-direction:column;align-items:center;gap:18px;text-align:center;padding:40px 24px;border-radius:var(--radius);color:#fff;box-shadow:0 8px #0000001f}.tca-start__title,.tca-finish__title{font-size:1.8rem;font-weight:800;margin:0}.tca-finish__pct{font-size:1.2rem;font-weight:700;margin:0}.tca-finish__cert{display:flex;flex-direction:column;align-items:center;gap:8px;margin:6px 0 2px}.tca-finish__certmsg{font-size:1.05rem;font-weight:800;margin:0}.tca-stephero{display:flex;align-items:center;gap:18px;color:#fff;border-radius:28px;padding:18px 26px;box-shadow:0 6px #0000001a}.tca-stephero svg{flex:0 0 auto;filter:drop-shadow(0 4px 6px rgb(0 0 0 / .18))}.tca-stephero__label{font-size:1.6rem;font-weight:800}.tca-stephero__instr{font-size:1rem;opacity:.95}.tca-dots{display:flex;gap:8px 12px;justify-content:center;flex-wrap:wrap;width:fit-content;max-width:100%;margin:0 auto;background:#fff;border:3px solid #f0e3cf;border-radius:28px;padding:12px 18px;box-shadow:0 4px #0000000d}.tca-dot{flex:0 0 78px;width:78px;display:flex;flex-direction:column;align-items:center;gap:6px;background:none;border:none;padding:0;cursor:pointer;font-family:inherit}.tca-dot__icon{flex:0 0 auto;width:50px;height:50px;border-radius:50%;background:#f1ebde;color:var(--dot,#b7a085);display:grid;place-items:center;opacity:.65;transition:transform .12s,opacity .12s,background .12s,color .12s}.tca-dot__label{font-size:.78rem;font-weight:800;color:var(--ink2);opacity:.7;max-width:78px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tca-dot:hover .tca-dot__icon{opacity:1;transform:scale(1.08)}.tca-dot:focus-visible{outline:none}.tca-dot:focus-visible .tca-dot__icon{outline:3px solid var(--sky);outline-offset:2px}.tca-dot:active .tca-dot__icon{transform:scale(.96)}.tca-dot.is-done .tca-dot__icon{background:#dff0cc;color:#4f9a35;opacity:1}.tca-dot.is-done .tca-dot__label{opacity:1}.tca-dot.is-current .tca-dot__icon{background:var(--dot);color:#fff;opacity:1;transform:scale(1.12);box-shadow:0 4px #00000024}.tca-dot.is-current .tca-dot__label{opacity:1;color:var(--ink)}@media (prefers-reduced-motion:reduce){.tca-dot__icon{transition:none}.tca-dot:hover .tca-dot__icon,.tca-dot:active .tca-dot__icon{transform:none}}.tca-stage{display:flex;flex-direction:column;gap:var(--gap)}.tca-stage--more{align-items:center}.tca-stage--more>*{width:100%;max-width:760px;text-align:left}.tca-stage--more .tca-teaching__en,.tca-stage--more .tca-teaching__ta,.tca-stage--more .tca-video__title,.tca-stage--more .tca-worksheet__title{text-align:left}.tca-letter{display:flex;flex-direction:column;align-items:center;gap:10px;padding:16px}.tca-letter__glyph{font-family:Noto Sans Tamil,sans-serif;font-size:150px;line-height:1.2;background:radial-gradient(circle at 50% 38%,#fff,#fff2dc);border:5px solid var(--mango);border-radius:32px;width:260px;height:260px;cursor:pointer;color:var(--ink);box-shadow:0 7px #0000001a}.tca-letter__glyph:active{transform:translateY(2px)}.tca-letter__roman{font-size:1.4rem;font-weight:700;color:var(--ink2)}.tca-speaker{width:56px;height:56px;border-radius:50%;border:none;cursor:pointer;background:var(--sky);color:#fff;display:grid;place-items:center;box-shadow:0 4px #0000001f}.tca-speaker:active{transform:translateY(2px)}.tca-vocab__intro{text-align:center;font-weight:600}.tca-vocab__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}@media (min-width:560px){.tca-vocab__grid{grid-template-columns:repeat(4,1fr)}}.tca-tile{display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px 12px 14px;background:linear-gradient(180deg,#fff,#fff7ea);border:3px solid #f0e3cf;border-radius:22px;cursor:pointer;box-shadow:0 5px #00000012;color:var(--ink)}.tca-tile__ta,.tca-tile__en{color:var(--ink)}.tca-tile.is-tapped{border-color:var(--leaf);background:linear-gradient(180deg,#fff,#f1f8e6)}.tca-tile__img{width:100%;aspect-ratio:1;max-width:168px;background-size:contain;background-repeat:no-repeat;background-position:center;border-radius:16px;background-color:#fbf2e2;box-shadow:inset 0 2px 6px #0000000d}.tca-tile__ta{font-size:1.7rem;font-weight:700}.tca-tile__en{font-size:.95rem;font-weight:700;color:var(--ink2)}.tca-akshara{background:linear-gradient(180deg,transparent 52%,#ffe08a 52%,#ffd34d 100%);border-radius:4px;padding:0 1px;color:inherit}.tca-trace{display:flex;flex-direction:column;align-items:center;gap:10px}.tca-trace__canvas{width:min(340px,86vw);height:min(340px,86vw);background:radial-gradient(circle at 50% 40%,#fff,#fff6e6);border:4px solid var(--mango);border-radius:24px;touch-action:none}.tca-trace__ghost{font-family:Noto Sans Tamil,sans-serif;font-size:240px;fill:#efe7da}.tca-trace__ink{fill:none;stroke:var(--coral);stroke-width:14;stroke-linecap:round;stroke-linejoin:round}.tca-game,.tca-game__host{min-height:320px}.tca-play{display:flex;flex-direction:column;gap:12px;min-height:0}.tca-play__lead{margin:2px 0 4px;font-weight:700;color:var(--ink2);text-align:center}.tca-play__lead [lang=ta]{font-weight:800}.tca-play__back{align-self:flex-start;border:0;background:#fff;color:var(--ink2);font-weight:800;border-radius:999px;padding:8px 16px;cursor:pointer;border:3px solid #f0e3cf;margin-bottom:8px}.tca-play__primary,.tca-play__card{display:flex;align-items:center;gap:14px;text-align:left;cursor:pointer;border:3px solid rgb(0 0 0 / .06);border-radius:22px;background:#fff;box-shadow:0 5px #0000001a;transition:transform .12s,box-shadow .12s}.tca-play__primary:hover,.tca-play__card:hover{transform:translateY(-3px);box-shadow:0 8px #0000001a}.tca-play__primary:active,.tca-play__card:active{transform:translateY(0);box-shadow:0 3px #0000001a}.tca-play__primary{padding:20px 18px}.tca-play__card{padding:14px}.tca-play__emoji{font-size:2rem;line-height:1;flex:0 0 auto}.tca-play__primary .tca-play__emoji{font-size:2.6rem}.tca-play__titles{display:flex;flex-direction:column;gap:2px;flex:1 1 auto;min-width:0}.tca-play__en{font-weight:800;color:var(--ink)}.tca-play__primary .tca-play__en{font-size:1.25rem}.tca-play__ta{font-weight:700;color:var(--ink2);font-size:.9rem}.tca-play__cta{flex:0 0 auto;font-weight:800;color:#fff;background:var(--ink2);border-radius:999px;padding:9px 20px;white-space:nowrap}.tca-play__morelabel{margin:8px 0 0;font-weight:700;color:var(--ink2)}.tca-play__opt{color:#9a8b7a;font-weight:700}.tca-play__more{display:grid;grid-template-columns:1fr 1fr;gap:10px}.tca-play__tick{flex:0 0 auto;font-weight:800;color:var(--leaf);font-size:1.2rem}.tca-play__primary.is-done,.tca-play__card.is-done{border-color:var(--leaf)}.tca-pg--sun{background:#fff7d6}.tca-pg--ocean{background:#e2f4fb}.tca-pg--lavender{background:#efe9fb}.tca-pg--coral{background:#fdeaf0}.tca-pg--leaf{background:#eef7da}@media (max-width:380px){.tca-play__more{grid-template-columns:1fr}}.tca-play__bar{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px}.tca-play__all{align-self:center;display:inline-block;margin-top:6px;text-decoration:none;font-weight:800;color:var(--ink2);background:#fff;border:3px solid #f0e3cf;border-radius:999px;padding:8px 18px}.tca-play__all:hover{background:var(--ivory)}.tca-arcade{display:flex;flex-direction:column;gap:var(--gap)}.tca-arcade__head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.tca-arcade__title{display:flex;align-items:center;gap:10px}.tca-arcade__title h1{margin:0;font-size:1.4rem;font-weight:800;color:var(--ink)}.tca-arcade__emoji{font-size:1.8rem}.tca-arcade__pick{display:flex;align-items:center;gap:8px;font-weight:800;color:var(--ink2)}.tca-arcade__pick select{font:inherit;font-weight:700;color:var(--ink);background:#fff;border:3px solid #f0e3cf;border-radius:14px;padding:8px 12px;max-width:60vw}.tca-arcade-cta{align-self:center;display:inline-block;text-decoration:none;font-weight:800;color:#fff;background:var(--purple,#9b7ede);border-radius:999px;padding:12px 26px;box-shadow:0 5px #0000001f;transition:transform .12s,box-shadow .12s}.tca-arcade-cta:hover{transform:translateY(-3px);box-shadow:0 8px #0000001f}.tca-finish__links{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:10px}.tca-finish__arcade{text-decoration:none;font-weight:800;color:#fff}.tca-topnav__link--games,.tca-topnav__link--charts{white-space:nowrap}.tca-explore{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.tca-arcade-cta--charts{background:var(--sky,#5bc0eb)}.tca-unlock{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;max-width:760px;margin:0 auto 4px;padding:14px 18px;border-radius:16px;background:linear-gradient(135deg,#fff3e0,#ffe2bd);border:2px solid #f3c98a;text-decoration:none;color:var(--ink2,#3d2b1f)}.tca-unlock:hover{box-shadow:0 4px #00000014}.tca-unlock__txt{font-weight:700;line-height:1.4;flex:1 1 280px}.tca-unlock__btn{flex:none;background:#e8850c;color:#fff;font-weight:800;padding:11px 20px;border-radius:12px;white-space:nowrap}.tca-unlock:hover 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