.landing{isolation:isolate;gap:clamp(48px,9vw,112px);padding-bottom:clamp(24px,4vw,48px);display:grid;position:relative;overflow-x:clip}.landing:before{content:"";z-index:-1;pointer-events:none;background:radial-gradient(40% 50% at 82% 18%, color-mix(in srgb, var(--os-go) 16%, transparent), transparent 70%), radial-gradient(36% 46% at 12% 8%, color-mix(in srgb, var(--os-tel) 12%, transparent), transparent 70%);height:900px;position:absolute;inset:-120px 0 auto}.section-head{gap:8px;display:grid}.section-head.row{align-items:flex-end;display:flex}.section-h{letter-spacing:-.02em;font-size:clamp(1.5rem,3.4vw,2.375rem);font-weight:700;line-height:1.22}html[lang=bn] .section-h{letter-spacing:0;font-weight:650}.section-head .muted{font-size:1.0625rem;line-height:1.65}.see-all{color:var(--os-tel-ink);white-space:nowrap;align-items:center;gap:6px;font-weight:650;text-decoration:none;display:inline-flex}.see-all:hover{text-decoration:underline}.hero{align-items:center;gap:20px;padding-top:clamp(20px,6vw,72px);display:grid}@media (min-width:960px){.hero{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px}}.hero-copy{animation:rise-in .64s var(--ease) both;align-content:center;gap:18px;display:grid}.hero-kicker{background:var(--os-go-soft);border-radius:999px;justify-self:start;align-items:center;gap:8px;padding:6px 14px;display:inline-flex}.hero-kicker:before{content:"";background:var(--os-go);width:7px;height:7px;box-shadow:0 0 0 3px color-mix(in srgb, var(--os-go) 25%, transparent);border-radius:50%}html[lang] h1.hero-title{font:700 clamp(2.25rem, 7vw, 4.25rem)/1.15 var(--os-font-display);letter-spacing:-.01em;text-wrap:balance}html[lang=en] h1.hero-title{font:750 clamp(2.5rem, 7vw, 4.5rem)/1.04 var(--os-font-display);letter-spacing:-.04em}.hero-title>span{display:inline}.hero-accent{background:linear-gradient(100deg, var(--os-go-ink) 10%, color-mix(in srgb, var(--os-go-ink) 55%, #d6246e) 90%);color:#0000;-webkit-background-clip:text;background-clip:text}.hero-lead{max-width:46ch;font-size:clamp(1.0625rem,1.6vw,1.25rem);line-height:1.65}.hero-ctas{flex-wrap:wrap;align-items:center;gap:10px 18px;display:flex}.hero-ctas .btn{min-height:54px;padding-inline:28px;font-size:1.0625rem}.hero-demo{min-height:44px;color:var(--os-ink-2);align-items:center;gap:6px;font-weight:650;text-decoration:none;display:inline-flex}.hero-demo:hover{color:var(--os-ink);text-decoration:underline}.hero-note{margin-top:-6px}.hero-art{min-height:230px;animation:rise-in .72s var(--ease) .12s both;grid-template-columns:1fr 1fr;place-items:end center;padding:58px 0 44px;display:grid;position:relative}.hero-glow{background:radial-gradient(closest-side, color-mix(in srgb, var(--os-go) 22%, transparent), color-mix(in srgb, var(--os-tel) 10%, transparent) 60%, transparent);filter:blur(6px);border-radius:50%;position:absolute;inset:8% 6% 40px}.hero-art .mascot{width:min(210px,46vw)!important;height:min(210px,46vw)!important}.hero-abir{z-index:1;justify-self:end;margin-right:-14px}.hero-tasin{justify-self:start;margin-left:-14px;animation-delay:-2.1s}.hero-art:after{content:"";background:linear-gradient(90deg, transparent, var(--os-line-2), transparent);border-radius:2px;height:2px;position:absolute;inset:auto 4% 42px}.hero-say{z-index:2;border-radius:18px 18px 6px;max-width:52%;padding:8px 14px;font-size:.9375rem;animation-delay:.7s;position:absolute;top:0;right:2%}.hero-stats{color:var(--os-ink-2);flex-wrap:wrap;justify-content:center;gap:4px 14px;margin:0;font-size:.875rem;font-weight:650;display:flex;position:absolute;inset:auto 0 6px}.hero-stats span{align-items:center;gap:6px;display:inline-flex}.hero-stats span:before{content:"";background:var(--os-tel);border-radius:50%;width:7px;height:7px}.hero-stats span:nth-child(2):before{background:var(--os-go)}.hero-stats span:nth-child(3):before{background:var(--os-ok)}@media (min-width:960px){.hero-art{min-height:380px}.hero-art .mascot{width:260px!important;height:260px!important}}.feats{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}@media (min-width:900px){.feats{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}}.feat{background:var(--os-panel-2);box-shadow:var(--os-elev-raised);border-radius:20px;align-content:start;gap:6px;padding:16px;display:grid}.feat h3{font-size:1.0625rem;font-weight:700}.feat p{color:var(--os-ink-2);font-size:.9375rem;line-height:1.55}.feat-icon{width:40px;height:40px;color:var(--os-go-ink);background:var(--os-go-soft);border-radius:12px;place-items:center;margin-bottom:4px;display:grid}.feat-icon[data-tone=tel]{color:var(--os-tel-ink);background:var(--os-tel-soft)}.feat-icon[data-tone=ok]{color:var(--os-ok);background:var(--os-ok-soft)}.feat-icon[data-tone=ink]{color:var(--os-panel-2);background:var(--os-ink)}@media (min-width:640px){.feat{padding:22px}}.demo-steps{flex-wrap:wrap;gap:8px;display:flex}.demo-steps li{background:var(--os-panel-2);box-shadow:var(--os-elev-raised);border-radius:999px;align-items:center;gap:8px;padding:6px 14px 6px 6px;font-size:.9375rem;font-weight:650;display:inline-flex}.demo-steps .num{background:var(--os-go-soft);width:26px;height:26px;color:var(--os-go-ink);border-radius:50%;place-items:center;font-size:.8125rem;font-weight:750;display:grid}.demo-steps li:first-child .num{background:var(--os-go);color:var(--os-on-go)}.demo-body{gap:12px;min-width:0;max-width:980px;display:grid}.tutor{align-items:flex-end;gap:10px;display:flex}.tutor .say{flex:1}.subject-rows{max-width:720px}.subject-glyph{background:color-mix(in srgb, var(--world) 14%, var(--os-panel-2));border-radius:12px;width:40px;height:40px;font-size:1.25rem}.ai-card{background:radial-gradient(90% 120% at 100% 100%, color-mix(in srgb, var(--os-go) 16%, transparent), transparent 60%), radial-gradient(70% 90% at 0% 0%, color-mix(in srgb, var(--os-tel) 12%, transparent), transparent 60%), var(--os-panel-2);box-shadow:var(--os-elev-raised);border-radius:28px;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:8px;padding:22px 0 0 22px;display:grid;position:relative;overflow:hidden}.ai-copy{align-content:start;gap:10px;padding-bottom:22px;display:grid}.ai-copy h2{font-size:clamp(1.375rem,3vw,2rem);font-weight:700;line-height:1.25}.ai-copy .btn{justify-self:start}.ai-tasin{align-self:end;margin-right:-8px}@media (max-width:480px){.ai-tasin{width:112px!important;height:112px!important}.ai-card{padding-left:18px}}.parents{background:var(--os-panel);max-width:760px;box-shadow:0 0 0 1px var(--os-line) inset;border-radius:22px;gap:10px;padding:20px 22px;display:grid}.parents h2{font-size:1.25rem;font-weight:700}.parents .muted{line-height:1.7}.faq-section{max-width:860px}.faq-section .faq details{transition:box-shadow .26s var(--ease)}.faq-section .faq details[open]{box-shadow:var(--os-elev-lifted)}.faq-section .faq summary{padding-block:2px;font-size:1rem}.closer{text-align:center;background:radial-gradient(70% 90% at 50% 0%, color-mix(in srgb, var(--os-go) 20%, transparent), transparent 70%), var(--os-panel-2);box-shadow:var(--os-elev-raised);border-radius:32px;justify-items:center;gap:14px;padding:8px clamp(20px,4vw,48px) clamp(28px,5vw,56px);display:grid;overflow:hidden}.closer-pair{align-items:end;margin-bottom:-6px;display:flex}.closer-pair .mascot+.mascot{margin-left:-18px}.closer h2{letter-spacing:-.02em;font-size:clamp(1.625rem,4.4vw,2.75rem);font-weight:700;line-height:1.2}.closer .lead{max-width:46ch}.closer .btn{min-height:54px;padding-inline:30px;font-size:1.0625rem}.landing>.section{animation:none}@supports (animation-timeline:view()){@media (prefers-reduced-motion:no-preference){.landing .reveal{animation:linear both reveal;animation-timeline:view();animation-range:entry entry 60%}}}@keyframes reveal{0%{opacity:0;transform:translateY(24px)scale(.98)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:reduce){.mascot-float{animation:none}}