:root{--sky-top:#aee7ff;--sky-bottom:#fff6d6;--bg:#fff9e8;--surface:#fff;--surface-2:#fff3cf;--paper:#fffdf4;--ink:#23305a;--ink-line:#23305a;--muted:#6a739c;--sun:#ffd948;--sun-deep:#f5a623;--good:#2fbf71;--warn:#ff9f1c;--bad:#ef476f;--hard-shadow:6px 6px 0 #23305a2e;--btn-shadow:0 5px 0;--radius:22px;--outline:3px solid var(--ink-line);--font-display:var(--font-fredoka), "Trebuchet MS", ui-rounded, system-ui, sans-serif;--font-body:var(--font-nunito), "Segoe UI", system-ui, sans-serif;--font-read:Verdana, "Segoe UI", system-ui, sans-serif}@media (prefers-color-scheme:dark){:root{--sky-top:#0c1636;--sky-bottom:#1a2247;--bg:#131c3d;--surface:#1e2a52;--surface-2:#26335f;--paper:#223058;--ink:#f2f0ff;--ink-line:#0a1129;--muted:#9aa4cf;--sun:#ffd948;--sun-deep:#ffb703;--hard-shadow:6px 6px 0 #00000073}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:linear-gradient(var(--sky-top), var(--sky-bottom) 260px, var(--bg) 420px);color:var(--ink);font-family:var(--font-body);-webkit-font-smoothing:antialiased;min-height:100vh;font-weight:600;line-height:1.5}.sky{pointer-events:none;z-index:0;height:260px;position:absolute;inset:0 0 auto;overflow:hidden}.sun-disc{background:radial-gradient(circle, var(--sun) 55%, transparent 62%);filter:drop-shadow(0 0 40px #ffd9488c);border-radius:50%;width:200px;height:200px;animation:40s linear infinite sunspin;position:absolute;top:-60px;right:-60px}.sun-disc:after{content:"";background:repeating-conic-gradient(var(--sun) 0deg 9deg, transparent 9deg 24deg);border-radius:50%;position:absolute;inset:-34px;-webkit-mask:radial-gradient(circle,#0000 54%,#000 56% 72%,#0000 74%);mask:radial-gradient(circle,#0000 54%,#000 56% 72%,#0000 74%)}.cloud{opacity:.85;font-size:3rem;animation:60s linear infinite drift;position:absolute}.cloud.c1{top:34px;left:-80px}.cloud.c2{font-size:2.1rem;animation-duration:90s;top:110px;left:-220px}@keyframes drift{to{transform:translate(120vw)}}@keyframes sunspin{to{transform:rotate(360deg)}}@media (prefers-color-scheme:dark){.sun-disc{filter:drop-shadow(0 0 30px #f4f1de59);background:radial-gradient(circle,#f4f1de 55%,#0000 62%)}.cloud{opacity:.25}}.app{z-index:1;max-width:780px;margin:0 auto;padding:0 18px 90px;position:relative}.bar{z-index:20;flex-wrap:wrap;align-items:center;gap:10px;padding:14px 4px 10px;display:flex;position:sticky;top:0}.brand{font-family:var(--font-display);color:var(--ink);background:var(--surface);border:var(--outline);box-shadow:var(--hard-shadow);border-radius:999px;align-items:center;gap:8px;padding:8px 16px;font-size:1.2rem;font-weight:700;text-decoration:none;display:inline-flex}.bar-spacer{flex:1}.chip{font-family:var(--font-display);border:var(--outline);background:var(--surface);color:var(--ink);font-variant-numeric:tabular-nums;white-space:nowrap;cursor:pointer;border-radius:999px;align-items:center;gap:6px;padding:8px 14px;font-size:.92rem;font-weight:600;text-decoration:none;display:inline-flex;box-shadow:3px 3px #23305a26}.chip.coins{background:var(--sun)}.chip.pending{background:var(--surface-2)}.chip.streak{background:#ffe0e9}@media (prefers-color-scheme:dark){.chip.streak{background:#4a2b48}}.hero{text-align:center;padding:26px 6px 30px}.hero h1,.fun-title{font-family:var(--font-display);letter-spacing:.01em;text-shadow:3px 3px #23305a1f;margin:.1em 0 .15em;font-size:clamp(2.1rem,7vw,3.2rem);font-weight:700;line-height:1.04}.fun-title{font-size:clamp(1.5rem,5vw,2.1rem)}.hero h1 .go{color:var(--sun-deep);display:inline-block;transform:rotate(-2deg)}.hero p{color:var(--muted);max-width:40ch;margin:0 auto;font-size:1.08rem;font-weight:700}.eyebrow{font-family:var(--font-display);letter-spacing:.18em;text-transform:uppercase;color:var(--muted);text-align:center;margin:24px 4px 14px;font-size:.8rem;font-weight:600}.readers{grid-template-columns:repeat(3,1fr);gap:18px;display:grid}@media (max-width:600px){.readers{grid-template-columns:1fr}}.reader-card{--c:var(--sun-deep);text-align:center;cursor:pointer;background:var(--surface);border:var(--outline);border-radius:var(--radius);width:100%;box-shadow:var(--hard-shadow);color:var(--ink);font-family:var(--font-body);padding:22px 16px 18px;font-size:1rem;transition:transform .15s,box-shadow .15s}.reader-card:first-child{transform:rotate(-1.2deg)}.reader-card:nth-child(2){transform:rotate(.8deg)}.reader-card:nth-child(3){transform:rotate(-.6deg)}.reader-card:hover,.reader-card:focus-visible{transform:rotate(0)translateY(-6px)scale(1.03);box-shadow:8px 10px #23305a33}.reader-card .face{background:color-mix(in srgb, var(--c) 22%, var(--surface));border:var(--outline);border-radius:50%;place-items:center;width:84px;height:84px;margin-bottom:10px;font-size:3.2rem;line-height:1;display:inline-grid}.reader-card h3{font-family:var(--font-display);color:var(--c);margin:0;font-size:1.5rem;font-weight:700}.reader-card .grade{color:var(--muted);font-size:.85rem;font-weight:800}.games{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;display:grid}.game-card{--c:var(--sun-deep);text-align:center;color:var(--ink);background:var(--surface);border:var(--outline);border-radius:var(--radius);box-shadow:var(--hard-shadow);padding:22px 16px 18px;text-decoration:none;transition:transform .15s,box-shadow .15s;display:block}.game-card:first-child{transform:rotate(-1deg)}.game-card:nth-child(2){transform:rotate(.8deg)}.game-card:nth-child(3){transform:rotate(-.5deg)}.game-card:hover,.game-card:focus-visible{transform:rotate(0)translateY(-6px)scale(1.03);box-shadow:8px 10px #23305a33}.game-card .face{background:color-mix(in srgb, var(--c) 22%, var(--surface));border:var(--outline);border-radius:50%;place-items:center;width:84px;height:84px;margin-bottom:10px;font-size:3rem;line-height:1;display:inline-grid}.game-card h3{font-family:var(--font-display);color:var(--c);margin:0;font-size:1.4rem;font-weight:700}.game-card p{color:var(--muted);margin:6px 0 0;font-size:.95rem;font-weight:700}@media (prefers-reduced-motion:reduce){.game-card,.game-card:nth-child(n){transition:none;transform:none}}.card{background:var(--surface);border:var(--outline);border-radius:var(--radius);box-shadow:var(--hard-shadow);margin-bottom:16px;padding:18px}.card.accent{border-left-width:10px;border-left-color:var(--kc,var(--sun-deep))}.center-card{text-align:center;padding:36px 20px}.btn{appearance:none;cursor:pointer;font-family:var(--font-display);background:var(--kc,var(--sun-deep));color:#fff;border:var(--outline);min-height:52px;box-shadow:var(--btn-shadow) color-mix(in srgb, var(--kc,var(--sun-deep)) 55%, var(--ink-line));border-radius:16px;padding:13px 22px;font-size:1.08rem;font-weight:600;transition:transform 80ms,box-shadow 80ms}.btn:hover{transform:translateY(-1px)}.btn:active{box-shadow:0 1px 0 color-mix(in srgb, var(--kc,var(--sun-deep)) 55%, var(--ink-line));transform:translateY(4px)}.btn:disabled{opacity:.45;cursor:default;transform:none}.btn.ghost{background:var(--surface);color:var(--ink);box-shadow:var(--btn-shadow) #23305a40}.btn.sun{background:var(--sun);color:#4a3200;box-shadow:var(--btn-shadow) var(--sun-deep)}.btn.wide{text-align:center;width:100%;padding:16px;font-size:1.18rem}.btn.danger{background:var(--bad);box-shadow:var(--btn-shadow) #a92747}.mic-btn{align-items:center;gap:10px;margin:8px auto;padding:18px 30px;font-size:1.25rem;display:flex}.recorder{flex-direction:column;align-items:center;display:flex}.mic-btn.recording{background:var(--bad);box-shadow:var(--btn-shadow) #a92747;animation:1.2s ease-in-out infinite pulse}.rec-dot{background:#fff;border-radius:50%;width:12px;height:12px;animation:1s steps(2,start) infinite blink;display:inline-block}@keyframes pulse{50%{transform:scale(1.04)}}@keyframes blink{50%{opacity:.15}}.hear-btn{border:var(--outline);background:var(--surface-2);cursor:pointer;vertical-align:middle;border-radius:50%;width:40px;height:40px;font-size:1.05rem;box-shadow:2px 2px #23305a33}.hear-btn:active{box-shadow:none;transform:translateY(2px)}.topics{flex-wrap:wrap;justify-content:center;gap:14px;display:flex}.topic{border:var(--outline);background:var(--surface);color:var(--ink);font-family:var(--font-display);cursor:pointer;border-radius:999px;align-items:center;gap:9px;min-height:54px;padding:14px 22px;font-size:1.1rem;font-weight:600;transition:transform .12s;display:inline-flex;box-shadow:4px 4px #23305a2e}.topic:nth-child(odd){transform:rotate(-1.5deg)}.topic:nth-child(2n){transform:rotate(1.2deg)}.topic:hover,.topic:focus-visible{background:var(--kc,var(--sun));color:#fff;transform:rotate(0)scale(1.06)}.topic-emoji{font-size:1.5rem}.passage{font-family:var(--font-read);background:var(--paper);border:var(--outline);border-radius:var(--radius);box-shadow:var(--hard-shadow);margin:12px 0 16px;padding:26px 24px;position:relative}.passage:before{content:"📖";background:var(--surface);border:var(--outline);border-radius:50%;place-items:center;width:44px;height:44px;font-size:1.7rem;display:grid;position:absolute;top:-18px;left:22px}.passage h2{font-family:var(--font-display);color:var(--kc,var(--ink));margin:4px 0 14px;font-weight:700}.passage.lvl-adv{font-size:1.1rem;line-height:1.8}.passage.lvl-mid{font-size:1.55rem;line-height:2.05}.passage.lvl-early{font-size:1.95rem;line-height:1.85}.passage p{margin:0 0 1em}.passage p:last-child{margin-bottom:0}.step-label{font-family:var(--font-display);letter-spacing:.14em;text-transform:uppercase;color:var(--kc,var(--sun-deep));margin:22px 0 10px;font-size:.82rem;font-weight:600}.work{margin:14px 0 8px;font-size:1.08rem;font-weight:800}.hint{color:var(--muted);margin:6px 0 8px;font-size:.92rem;font-weight:700}textarea,input.text,input.pin{width:100%;font-family:var(--font-body);color:var(--ink);background:var(--paper);border:var(--outline);border-radius:14px;margin-bottom:12px;padding:13px 14px;font-size:1.05rem;font-weight:600}textarea{resize:vertical;min-height:84px}input.pin{letter-spacing:.5em;text-align:center;font-variant-numeric:tabular-nums;max-width:230px;font-size:1.7rem}textarea:focus,input:focus,.btn:focus-visible,.topic:focus-visible,.reader-card:focus-visible,.option:focus-visible,.hear-btn:focus-visible{outline:4px solid color-mix(in srgb, var(--kc,var(--sun-deep)) 60%, transparent);outline-offset:2px}.option-row{flex-direction:column;gap:12px;margin:10px 0 4px;display:flex}.option{text-align:left;border:var(--outline);background:var(--paper);color:var(--ink);font-family:var(--font-body);cursor:pointer;border-radius:14px;min-height:52px;padding:14px 16px;font-size:1.05rem;font-weight:700;transition:transform .1s;box-shadow:3px 3px #23305a24}.option.big{min-height:62px;padding:18px;font-size:1.2rem}.option:hover{transform:translate(3px)}.option.picked{background:var(--kc,var(--sun-deep));color:#fff;box-shadow:3px 3px 0 var(--ink-line);transform:translate(3px)}.reward{text-align:center;padding:26px 6px 6px;position:relative}.big-stamp{border:5px solid var(--good);color:var(--good);font-family:var(--font-display);letter-spacing:.06em;text-transform:uppercase;background:var(--surface);box-shadow:var(--hard-shadow);border-radius:18px;padding:10px 26px;font-size:1.7rem;font-weight:700;animation:.45s cubic-bezier(.2,2.4,.4,1) stamp-in;display:inline-block;transform:rotate(-8deg)}.big-stamp.pending{border-color:var(--sun-deep);color:var(--sun-deep)}@keyframes stamp-in{0%{opacity:0;transform:scale(2.6)rotate(-8deg)}60%{opacity:1;transform:scale(.92)rotate(-8deg)}to{transform:scale(1)rotate(-8deg)}}.earn{font-size:2.6rem;font-family:var(--font-display);color:var(--sun-deep);text-shadow:3px 3px #23305a26;margin:16px 0 4px;font-weight:700}.note{color:var(--muted);font-weight:700}.confetti{pointer-events:none;height:120px;position:absolute;inset:0 0 auto}.confetti-bit{width:10px;height:14px;animation:.9s ease-out forwards pop-out;animation-delay:calc(var(--i) * 20ms);transform-origin:50%;border-radius:3px;position:absolute;top:40px;left:50%}.confetti-bit.c0{background:#ef476f}.confetti-bit.c1{background:#ffd948}.confetti-bit.c2{background:#2fbf71}.confetti-bit.c3{background:#2aa6df}.confetti-bit.c4{background:#f5a623}.confetti-bit.c5{background:#b07de8}.confetti-bit.c6{background:#ff8fa3}@keyframes pop-out{0%{opacity:1;transform:translate(0)rotate(0)}to{transform:translate(calc((var(--i) - 7) * 26px), calc(-40px - (var(--i) * 4px))) rotate(calc(var(--i) * 80deg));opacity:0}}.score-banner{text-align:center;font-family:var(--font-display);color:#14532d;border:var(--outline);background:#d3f5e3;border-radius:14px;margin:10px 0;padding:13px;font-size:1.05rem;font-weight:600;box-shadow:3px 3px #23305a26}.score-banner.low{color:#7a3d00;background:#ffe8c2}@media (prefers-color-scheme:dark){.score-banner{color:#baf3d3;background:#1d4a34}.score-banner.low{color:#ffd9a1;background:#57370b}}.flag{border:2px solid var(--warn);background:#fff1d6;border-radius:12px;align-items:flex-start;gap:8px;margin-top:8px;padding:10px 12px;font-size:.9rem;font-weight:700;display:flex}@media (prefers-color-scheme:dark){.flag{background:#4a3510}}.stats-row{flex-wrap:wrap;gap:8px;margin:10px 0;display:flex}.stat{background:var(--surface-2);border:2px solid var(--ink-line);font-variant-numeric:tabular-nums;border-radius:10px;align-items:center;gap:6px;padding:8px 12px;font-size:.88rem;font-weight:800;display:flex}.qa-detail{color:var(--muted);margin:6px 0;font-size:.92rem;font-weight:600}.qa-detail b{color:var(--ink)}details.evidence summary{cursor:pointer;font-weight:800;font-family:var(--font-display);padding:6px 0}.footer{text-align:center;color:var(--muted);margin-top:34px;font-size:.88rem;font-weight:700}.wiggle-in{animation:.35s ease-out wiggle-in}@keyframes wiggle-in{0%{opacity:0;transform:translateY(14px)rotate(.6deg)}to{opacity:1;transform:translateY(0)rotate(0)}}.book-flip{font-size:3rem;animation:1.1s ease-in-out infinite flip;display:inline-block}@keyframes flip{50%{transform:rotateY(180deg)scale(1.1)}}.spin{border:3px solid var(--surface-2);border-top-color:var(--sun-deep);vertical-align:middle;border-radius:50%;width:22px;height:22px;animation:.8s linear infinite rot;display:inline-block}@keyframes rot{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}