:root{--red:#e11d2e;--red-d:#b5121f;--red-l:#fff1f2;--red-m:#fecdd3;--ink:#1f2937;--mut:#6b7280;--line:#eceef2;--bg:#fff;--soft:#f8f9fb;--r:16px;--sh:0 6px 24px rgba(17,24,39,.08);
--f-lp:#fda4af;--f-lr:#fdba74;--f-lm:#fde047;--f-li:#86efac;--f-th:#e5e7eb;--f-ri:#7dd3fc;--f-rm:#c4b5fd;--f-rr:#f9a8d4;--f-rp:#fca5a5}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font:17px/1.6 "Nunito","Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--red-d)}a:hover{color:var(--red)}img,svg{max-width:100%}
h1,h2,h3{line-height:1.2;font-weight:800;letter-spacing:-.01em}h1{font-size:clamp(2rem,5vw,3.1rem);margin:.2em 0 .3em}h2{font-size:clamp(1.45rem,3vw,2rem)}h3{font-size:1.2rem}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}.narrow{max-width:820px}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;background:#fff;padding:8px;z-index:99}
/* header */
.site-h{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.hbar{display:flex;align-items:center;gap:14px;height:66px}.logo{display:flex;align-items:center}.logo img{height:38px;width:auto}
.nav{display:flex;gap:4px;margin-left:auto}.nav a{padding:8px 11px;border-radius:10px;text-decoration:none;color:var(--ink);font-weight:700;font-size:.95rem}.nav a:hover,.nav a.on{background:var(--red-l);color:var(--red-d)}
.h-tools{display:flex;gap:8px;align-items:center}.icon-btn{border:1px solid var(--line);background:#fff;border-radius:12px;height:40px;min-width:40px;font-size:18px;cursor:pointer}
#kid-pill{display:flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:4px 12px 4px 6px;font-weight:700;cursor:pointer;font-size:.9rem;font-family:inherit}#kid-pill .av{font-size:20px}#kid-pill .st{color:#b45309}
.nav-toggle{display:none}
@media(max-width:940px){.nav{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;flex-direction:column;padding:10px 16px;border-bottom:1px solid var(--line);box-shadow:var(--sh)}.nav-open .nav{display:flex}.nav-toggle{display:block}#kid-pill .nm{display:none}.h-tools{margin-left:auto}}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 22px;border-radius:14px;font-weight:800;text-decoration:none;border:2px solid transparent;cursor:pointer;font-size:1rem;font-family:inherit;transition:transform .12s,box-shadow .12s}
.btn:active{transform:translateY(2px)}.btn-red{background:var(--red);color:#fff;box-shadow:0 4px 0 var(--red-d)}.btn-red:hover{background:#ef2b3c;color:#fff}
.btn-ghost{background:#fff;color:var(--red-d);border-color:var(--red-m)}.btn-ghost:hover{background:var(--red-l)}.btn-lg{padding:15px 28px;font-size:1.1rem}.btn.small{padding:7px 14px;font-size:.9rem}.danger{color:#991b1b}
.btn-white{background:#fff;color:var(--red-d);box-shadow:0 4px 0 #fecdd3}
/* sections */
.hero{background:linear-gradient(180deg,var(--red-l),#fff);padding:46px 0 30px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:center}@media(max-width:860px){.hero-grid{grid-template-columns:1fr}}
.hero p.lead{font-size:1.2rem;color:#374151}.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0}
.trust{display:flex;gap:16px;flex-wrap:wrap;color:var(--mut);font-weight:700;font-size:.92rem;padding:0;list-style:none}
.demo-card{background:#fff;border-radius:22px;box-shadow:var(--sh);padding:18px;border:1px solid var(--line)}
section.block{padding:52px 0}section.alt{background:var(--soft)}.center{text-align:center}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media(max-width:860px){.grid3,.grid4{grid-template-columns:1fr 1fr}}@media(max-width:560px){.grid3,.grid2,.grid4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:0 2px 10px rgba(17,24,39,.04);margin-bottom:16px}
.feature .fi{font-size:30px;width:54px;height:54px;border-radius:14px;background:var(--red-l);display:flex;align-items:center;justify-content:center;margin-bottom:8px}
.feature h3{margin:.2em 0}.feature p{margin:.3em 0;color:#4b5563}
a.card{text-decoration:none;color:inherit;display:block;transition:transform .15s,box-shadow .15s}a.card:hover{transform:translateY(-3px);box-shadow:var(--sh)}
.crumbs{font-size:.88rem;color:var(--mut);padding:14px 0 0}.crumbs a{color:var(--mut)}
.page-h{padding:18px 0 8px}.page-h p.lead{font-size:1.15rem;color:#4b5563;max-width:760px}
.prose{max-width:780px}.prose h2{margin-top:1.6em}.prose li{margin:.3em 0}
.faq details{border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:10px 0;background:#fff}.faq summary{font-weight:800;cursor:pointer}
.pill{display:inline-block;background:var(--red-l);color:var(--red-d);font-weight:800;border-radius:999px;padding:3px 12px;font-size:.85rem}
.muted{color:var(--mut)}.small{font-size:.88rem}
.cta-band{background:var(--red);color:#fff;border-radius:24px;padding:34px;text-align:center;margin:30px 0}.cta-band h2{margin-top:0}.cta-band p{opacity:.95}
.link-list{columns:2;padding-left:18px}@media(max-width:560px){.link-list{columns:1}}
/* footer */
.site-f{background:#1f0b0e;color:#fde2e4;padding:44px 0 26px;margin-top:40px}.site-f a{color:#fff;text-decoration:none;opacity:.88}.site-f a:hover{opacity:1;text-decoration:underline}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;gap:22px}.f-grid h4{margin:0 0 8px;color:#fff}.f-grid ul{list-style:none;padding:0;margin:0}.f-grid li{margin:5px 0;font-size:.93rem}
@media(max-width:860px){.f-grid{grid-template-columns:1fr 1fr}}.f-bot{border-top:1px solid rgba(255,255,255,.15);margin-top:26px;padding-top:16px;font-size:.85rem;opacity:.8}
/* typer */
.typer{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:var(--sh)}
.t-stats{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}.t-stats>div:not(.t-prog){background:var(--soft);border-radius:12px;padding:6px 14px;text-align:center;min-width:86px}
.t-stats b{display:block;font-size:1.5rem;line-height:1.1;color:var(--red-d)}.t-stats span{font-size:.75rem;color:var(--mut);font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.t-prog{flex:1;min-width:120px;height:12px;background:var(--soft);border-radius:999px;overflow:hidden}.t-prog .bar{display:block;height:100%;width:0;background:linear-gradient(90deg,#fb7185,var(--red));transition:width .2s}
.t-text{font:600 clamp(1.3rem,3.2vw,2rem)/1.75 ui-monospace,"SF Mono",Menlo,Consolas,monospace;letter-spacing:.04em;padding:14px 16px;border-radius:14px;background:#fffafa;border:2px dashed var(--red-m);word-break:break-word;max-height:9.5em;overflow:hidden;outline:none}
.ch{color:#9ca3af;border-radius:4px;transition:color .08s}.ch.ok{color:#16a34a}.ch.fixed{color:#ca8a04}.ch.cur{color:var(--ink);background:#ffe4e6;box-shadow:inset 0 -4px 0 var(--red)}.ch.sp.cur{background:#fecdd3}
.ch.bad{background:#fecaca;animation:bad .25s}@keyframes bad{50%{transform:translateY(-3px)}}
.shake{animation:shake .22s}@keyframes shake{25%{transform:translateX(-3px)}75%{transform:translateX(3px)}}
.t-start{text-align:center;color:var(--mut);font-weight:700;margin:10px 0 4px}.started .t-start{visibility:hidden}
.finger-hint{text-align:center;font-weight:700;min-height:1.6em;margin:4px 0 8px;color:#374151}.hint-key{display:inline-block;min-width:1.6em;background:var(--red);color:#fff;border-radius:6px;padding:0 6px;font-family:ui-monospace,monospace}
.kb{display:flex;flex-direction:column;gap:5px;margin:0 auto;max-width:760px;user-select:none}.kb-row{display:flex;gap:5px;justify-content:center}
.key{flex:1 1 0;min-width:0;height:clamp(28px,5vw,46px);border-radius:8px;display:flex;align-items:center;justify-content:center;font:700 clamp(.6rem,1.6vw,.95rem) ui-monospace,monospace;color:#374151;border-bottom:3px solid rgba(0,0,0,.12);opacity:.92;transition:transform .08s}
.key.wide15{flex-grow:1.5}.key.wide18{flex-grow:1.8}.key.wide2{flex-grow:2}.key.wide25{flex-grow:2.5}.key.space{flex:0 0 46%}.key.bump{text-decoration:underline;text-underline-offset:4px}
.f-lp{background:var(--f-lp)}.f-lr{background:var(--f-lr)}.f-lm{background:var(--f-lm)}.f-li{background:var(--f-li)}.f-th{background:var(--f-th)}.f-ri{background:var(--f-ri)}.f-rm{background:var(--f-rm)}.f-rr{background:var(--f-rr)}.f-rp{background:var(--f-rp)}
.key.next{background:var(--red)!important;color:#fff;transform:translateY(-3px) scale(1.06);box-shadow:0 0 0 3px #fecdd3,0 6px 14px rgba(225,29,46,.35);opacity:1}.key.next-shift{background:#fb7185!important;color:#fff;opacity:1}
.hands{display:block;margin:10px auto 0;width:260px;height:auto}.palm{fill:#ffe4e6}.fg{opacity:.9;transition:all .12s}.fg-lp,.fg-rp{fill:var(--f-lp)}.fg-rp{fill:var(--f-rp)}.fg-lr{fill:var(--f-lr)}.fg-lm{fill:var(--f-lm)}.fg-li{fill:var(--f-li)}.fg-th{fill:#d1d5db}.fg-ri{fill:var(--f-ri)}.fg-rm{fill:var(--f-rm)}.fg-rr{fill:var(--f-rr)}
.fg.on{fill:var(--red);stroke:#fff;stroke-width:2;filter:drop-shadow(0 0 4px rgba(225,29,46,.6))}
.legend{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;font-size:.8rem;margin-top:10px}.legend span{padding:2px 8px;border-radius:6px}
.touch-note{background:#fff7ed;border:1px solid #fed7aa;border-radius:14px;padding:12px 14px;margin-bottom:12px}
.lesson-top{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;margin-bottom:10px}.tip{margin:0;background:var(--red-l);padding:8px 14px;border-radius:12px;font-weight:600}
.stars .star{color:#e5e7eb;font-size:1.1rem}.stars .star.on{color:#f59e0b}.star.big{font-size:3rem;display:inline-block;animation:pop .5s backwards}@keyframes pop{0%{transform:scale(0) rotate(-40deg)}70%{transform:scale(1.3)}100%{transform:scale(1)}}
/* modal */
.modal-back{position:fixed;inset:0;background:rgba(17,24,39,.45);display:flex;align-items:center;justify-content:center;z-index:100;padding:16px;animation:fade .2s}@keyframes fade{from{opacity:0}}
.modal{background:#fff;border-radius:24px;max-width:500px;width:100%;padding:26px;box-shadow:0 20px 60px rgba(0,0,0,.25);max-height:92vh;overflow:auto;animation:rise .25s}@keyframes rise{from{transform:translateY(20px);opacity:0}}
.modal h2{margin-top:0;text-align:center}.result{text-align:center}.res-stats{display:flex;justify-content:center;gap:12px;margin:14px 0}.res-stats div{background:var(--soft);border-radius:14px;padding:10px 16px;min-width:90px}.res-stats b{display:block;font-size:1.7rem;color:var(--red-d)}.res-stats span{font-size:.78rem;font-weight:700;color:var(--mut)}
.res-btns{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:14px 0}
.kid-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}.kid-pick{display:flex;flex-direction:column;align-items:center;border:2px solid var(--line);border-radius:16px;padding:12px;background:#fff;cursor:pointer;font:700 1rem inherit;font-family:inherit}.kid-pick:hover{border-color:var(--red)}.kid-pick .av{font-size:34px}
.or{text-align:center;color:var(--mut);font-weight:700}.new-kid label{display:block;font-weight:800}.new-kid input{display:block;width:100%;margin-top:6px;padding:12px 14px;border:2px solid var(--line);border-radius:12px;font-size:1.1rem;font-family:inherit}.new-kid input:focus{border-color:var(--red);outline:none}
.avs{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.av-btn{font-size:26px;width:48px;height:48px;border-radius:12px;border:2px solid var(--line);background:#fff;cursor:pointer}.av-btn.on{border-color:var(--red);background:var(--red-l)}.new-kid .btn{width:100%}
.big-emoji{font-size:54px;text-align:center}
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,40px);opacity:0;background:#111827;color:#fff;padding:12px 18px;border-radius:14px;z-index:120;display:flex;gap:12px;align-items:center;transition:all .35s;box-shadow:0 10px 30px rgba(0,0,0,.25);max-width:92vw}.toast.show{transform:translate(-50%,0);opacity:1}.toast-badge{font-size:34px}
.confetti{position:fixed;inset:0;pointer-events:none;z-index:110}
/* map */
.pilot{display:flex;gap:18px;align-items:center;flex-wrap:wrap}.av.big{font-size:56px;width:84px;height:84px;background:var(--red-l);border-radius:24px;display:flex;align-items:center;justify-content:center}
.pilot-info{flex:1;min-width:220px}.pilot-info h2{margin:0}.pilot-stats{display:flex;gap:14px;flex-wrap:wrap;font-size:.95rem;margin:6px 0}.map-prog{height:12px;background:var(--soft);border-radius:999px;overflow:hidden}.map-prog i{display:block;height:100%;background:var(--red)}
.pilot-act{display:flex;flex-direction:column;gap:8px}
.unit h3{display:flex;gap:8px;align-items:center;border-left:6px solid var(--uc,var(--red));padding-left:10px;margin:26px 0 12px}
.lesson-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.lesson-tile{display:flex;flex-direction:column;gap:4px;padding:14px;border-radius:16px;border:2px solid var(--line);background:#fff;text-decoration:none;color:var(--ink);transition:transform .15s,box-shadow .15s;min-height:118px}
.lesson-tile:hover{transform:translateY(-3px);box-shadow:var(--sh);color:var(--ink)}.lesson-tile .ln{width:34px;height:34px;border-radius:50%;background:var(--uc);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center}
.lesson-tile .lt{font-weight:800;line-height:1.25;flex:1}.lesson-tile.locked{opacity:.55;background:var(--soft)}.lesson-tile.locked .ln{background:#d1d5db}.lesson-tile.done{border-color:#fecdd3}.lesson-tile.current{border-color:var(--red);box-shadow:0 0 0 4px var(--red-l)}
.badge-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}.badge{text-align:center;padding:14px;border-radius:16px;border:2px dashed var(--line);filter:grayscale(1);opacity:.6}.badge.got{filter:none;opacity:1;border:2px solid #fde68a;background:#fffbeb}.badge .be{font-size:36px;display:block}.badge small{display:block;color:var(--mut);line-height:1.3}
/* dashboard */
.kid-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.kid-tab{border:2px solid var(--line);background:#fff;border-radius:999px;padding:6px 14px;font:700 .95rem inherit;font-family:inherit;cursor:pointer;display:flex;gap:6px;align-items:center}.kid-tab.on{border-color:var(--red);background:var(--red-l);color:var(--red-d)}.kid-tab.add{border-style:dashed;color:var(--mut)}
.dash-head{display:flex;gap:16px;align-items:center}.dash-head h2{margin:0}
.kpis{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-bottom:16px}@media(max-width:900px){.kpis{grid-template-columns:repeat(3,1fr)}}@media(max-width:520px){.kpis{grid-template-columns:repeat(2,1fr)}}
.kpi{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px}.kpi b{display:block;font-size:1.7rem;color:var(--red-d)}.kpi b small{font-size:1rem;color:var(--mut)}.kpi span{font-size:.82rem;color:var(--mut);font-weight:700}
.dash-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:16px}@media(max-width:860px){.dash-grid{grid-template-columns:1fr}}
.chart{width:100%;height:auto}.chart .ax{stroke:#e5e7eb}.ln-wpm{fill:none;stroke:var(--red);stroke-width:3;stroke-linejoin:round}.ln-acc{fill:none;stroke:#0ea5e9;stroke-width:2;stroke-dasharray:5 4}.dot{fill:var(--red)}.lg{font-size:11px;fill:#6b7280}.lg.r{fill:var(--red)}.lg.b{fill:#0284c7}
.weak{list-style:none;padding:0}.weak li{display:flex;align-items:center;gap:10px;margin:8px 0;font-size:.9rem}.kcap{width:34px;height:34px;border-radius:8px;background:var(--red-l);display:flex;align-items:center;justify-content:center;font-weight:800;text-decoration:none;font-family:ui-monospace,monospace}.wbar{flex:1;height:10px;background:var(--soft);border-radius:999px;overflow:hidden}.wbar i{display:block;height:100%;background:#fb7185}
.badge-row{display:flex;flex-wrap:wrap;gap:8px}.mini-badge{font-size:28px;filter:grayscale(1);opacity:.35}.mini-badge.got{filter:none;opacity:1}
.tbl-wrap{overflow-x:auto}.tbl{width:100%;border-collapse:collapse;font-size:.92rem}.tbl th,.tbl td{text-align:left;padding:8px;border-bottom:1px solid var(--line)}.tbl th{color:var(--mut);font-size:.8rem;text-transform:uppercase}
.settings summary{font-weight:800;cursor:pointer}.tog{display:block;margin:10px 0}.set-btns{display:flex;gap:8px;flex-wrap:wrap}
/* chips & games */
.chip-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:14px}.chip{border:2px solid var(--line);background:#fff;border-radius:999px;padding:7px 14px;font:700 .95rem inherit;font-family:inherit;cursor:pointer}.chip.on{background:var(--red);border-color:var(--red);color:#fff}.lbl{font-weight:800;color:var(--mut);font-size:.9rem}
.game-hud{display:flex;gap:18px;flex-wrap:wrap;font-weight:700;margin-bottom:10px;align-items:center}.game-hud b{color:var(--red-d);font-size:1.2rem}
.fall-area{position:relative;height:440px;border-radius:22px;background:linear-gradient(180deg,#1e1b4b,#3b0a14);overflow:hidden;outline:none}.fall-area.hit{box-shadow:inset 0 -30px 40px rgba(225,29,46,.6)}
.fall-area::after{content:"";position:absolute;left:0;right:0;bottom:0;height:20px;background:repeating-linear-gradient(90deg,#e11d2e 0 20px,#fff 20px 40px);opacity:.85}
.fw{position:absolute;top:0;background:#fff;color:#111;padding:4px 12px;border-radius:999px;font:800 1.25rem ui-monospace,monospace;box-shadow:0 4px 12px rgba(0,0,0,.3)}.fw u{color:var(--red);text-decoration:none;background:#ffe4e6;border-radius:4px}.fw.popped{animation:popw .25s forwards}@keyframes popw{to{transform:scale(1.8);opacity:0}}
.g-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;text-align:center;z-index:2;background:rgba(0,0,0,.25)}.g-overlay h3{font-size:2rem;margin:0}
.clock-area{display:flex;flex-direction:column;align-items:center;gap:14px;padding:22px;border-radius:22px;background:var(--red-l)}
.c-ring{position:relative;width:min(320px,80vw);aspect-ratio:1;transition:transform .15s}.c-ring.bump{transform:scale(1.04)}.c-ring svg{width:100%;height:100%;transform:rotate(-90deg)}.ring-bg{fill:#fff;stroke:#fecdd3;stroke-width:8}.ring-fg{fill:none;stroke:var(--red);stroke-width:8;stroke-linecap:round;stroke-dasharray:327;transition:stroke-dashoffset .1s linear}
.c-word{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font:800 clamp(1.6rem,6vw,2.6rem) ui-monospace,monospace;color:#9ca3af}.c-word .done{color:#16a34a}.c-word .cur{color:var(--ink);text-decoration:underline;text-decoration-color:var(--red);text-underline-offset:6px}.c-word.bad{animation:shake .2s}
.c-next{font-weight:700;color:var(--mut)}
/* certificate */
.cert{margin:24px auto;max-width:760px;background:#fff;border:10px solid var(--red);border-radius:18px;padding:10px}.cert-in{border:3px dashed var(--red-m);border-radius:10px;padding:30px;text-align:center;position:relative}.cert-k{font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--red-d)}.cert h2{font-size:2.4rem;margin:.2em 0;border-bottom:2px solid #e5e7eb;display:inline-block;padding:0 30px}.cert-big{font-size:3.4rem;font-weight:900;color:var(--red)}.cert-big small{font-size:1.1rem;color:var(--ink)}.cert-seal{position:absolute;right:24px;bottom:18px;font-size:44px;background:var(--red-l);border-radius:50%;width:76px;height:76px;display:flex;align-items:center;justify-content:center}.cert-d{color:var(--mut)}
@media print{body *{visibility:hidden}#certificate,#certificate *{visibility:visible}#certificate{position:absolute;left:0;top:0;width:100%;margin:0}.no-print{display:none}}
/* pricing */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}@media(max-width:860px){.price-grid{grid-template-columns:1fr}}.plan{border:2px solid var(--line);border-radius:22px;padding:24px;background:#fff;position:relative}.plan.hot{border-color:var(--red);box-shadow:0 0 0 5px var(--red-l)}.plan .tag{position:absolute;top:-13px;left:20px;background:var(--red);color:#fff;font-weight:800;font-size:.8rem;border-radius:999px;padding:3px 12px}.plan h3{margin:.2em 0}.plan .price{font-size:2rem;font-weight:900}.plan ul{padding-left:20px}
.waitlist{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.waitlist input,.waitlist select{flex:1;min-width:180px;padding:12px 14px;border:2px solid var(--line);border-radius:12px;font:1rem inherit;font-family:inherit}.wl-ok{background:#ecfdf5;border:1px solid #a7f3d0;border-radius:12px;padding:14px;width:100%}
.locked.card{text-align:center;padding:34px}
.kfacts{display:flex;gap:12px;flex-wrap:wrap}.kfacts div{background:var(--soft);border-radius:12px;padding:10px 14px}.kfacts b{display:block;color:var(--red-d)}
.bigkey{font:900 4rem ui-monospace,monospace;width:110px;height:110px;border-radius:22px;background:var(--red);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 0 var(--red-d);float:right;margin:0 0 10px 20px}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
/* Pro: accounts, pricing, teacher, join */
.acct-link{font-weight:800;color:var(--red);text-decoration:none;font-size:.95rem;padding:8px 10px;border-radius:10px;white-space:nowrap}.acct-link:hover{background:var(--red-l)}
.test-banner{background:#fffbeb;border:2px dashed #f59e0b;border-radius:14px;padding:10px 14px;margin:14px 0;font-size:.95rem}
.plan-btns{display:flex;gap:8px;flex-wrap:wrap}.plan .price small{font-size:1rem;font-weight:700;color:var(--mut)}
.narrow-card{max-width:560px;margin:0 auto}
.acct-form,.join-form,.new-class{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}
.acct-form input,.join-form input,.new-class input{flex:1;min-width:180px;padding:12px 14px;border:2px solid var(--line);border-radius:12px;font:inherit}
.acct-form input:focus,.join-form input:focus,.new-class input:focus{outline:none;border-color:var(--red)}
.code-input{text-transform:uppercase;letter-spacing:.3em;font-weight:900;font-size:1.4rem!important;text-align:center;max-width:260px}
.err{color:var(--red-d);font-weight:700}.ok-card{border:2px solid #86efac;background:#f0fdf4}
.upsell{border:2px solid var(--red-m);background:var(--red-l)}.upsell-mini{background:var(--red-l);border-radius:14px;padding:12px 14px;margin:10px 0}
.sync-bar{min-height:1.2em;color:var(--mut);font-size:.92rem;margin:0 0 10px}.sync-bar:empty{display:none}
.go-list{list-style:none;padding:0;display:flex;gap:8px;flex-wrap:wrap}
.link-btn{background:none;border:0;color:var(--red);font:inherit;font-weight:700;cursor:pointer;padding:4px 6px;text-decoration:underline}
.teacher-top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.class-card{border:2px solid var(--line);border-radius:var(--r);padding:18px;margin:16px 0;background:#fff;overflow-x:auto}
.class-h{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:flex-start}
.code-box{background:var(--red-l);border-radius:14px;padding:10px 16px;text-align:center}
.class-code{font-size:2rem;font-weight:900;letter-spacing:.2em;color:var(--red-d);font-family:ui-monospace,monospace}
.class-card table{width:100%;border-collapse:collapse;font-size:.92rem;margin-top:10px}.class-card th,.class-card td{text-align:left;padding:7px 8px;border-bottom:1px solid var(--line);white-space:nowrap}
.cert-print{display:none}
@media print{.cert-print{display:block}.cert-print .cert{page-break-after:always;break-after:page}}

/* Rocky the mascot */
.rocky{display:flex;align-items:flex-end;justify-content:center;gap:10px;margin:14px auto;max-width:560px}
.rocky img{flex:none;height:auto;filter:drop-shadow(0 6px 8px rgba(0,0,0,.12))}
.rocky-lg img{width:160px}.rocky-md img{width:120px}.rocky-sm img{width:88px}.rocky-xs img{width:56px}
.bubble{position:relative;margin:0 0 22px;background:#fff;border:2px solid var(--red);border-radius:18px;padding:10px 14px;font-weight:700;line-height:1.35;text-align:left;box-shadow:0 4px 12px rgba(225,29,46,.10);max-width:340px}
.bubble::after{content:"";position:absolute;left:-9px;bottom:14px;width:14px;height:14px;background:inherit;border-left:2px solid var(--red);border-bottom:2px solid var(--red);transform:rotate(45deg)}
.rocky-lg .bubble{font-size:1.05rem}
.hero-side .rocky{justify-content:flex-start;margin:0 0 6px}
.rocky-tip{margin:0;justify-content:flex-start;align-items:center;flex:1 1 320px;max-width:none}.rocky-tip .bubble{margin:0;max-width:none;flex:1;background:var(--red-l);border-color:transparent;box-shadow:none}.rocky-tip .bubble::after{border-color:transparent;bottom:auto;top:calc(50% - 7px)}
.rocky img{animation:rocky-bob 3.2s ease-in-out infinite}
@keyframes rocky-bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@media (prefers-reduced-motion:reduce){.rocky img{animation:none}}
@media(max-width:560px){.rocky-lg img{width:104px}.rocky-md img{width:92px}.rocky-sm img{width:72px}.bubble{font-size:.95rem}}
@media print{.rocky{display:none}}
/* Full keyboard diagrams (key guides + facts) */
.fkb-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:8px 0;padding-bottom:4px}
.fkb{display:flex;gap:10px;min-width:620px;background:#2b3240;border-radius:14px;padding:10px;box-shadow:0 6px 0 #1c222c}
.fkb-main{flex:1;display:flex;flex-direction:column;gap:4px}
.fkb-pad{width:22%;display:flex;flex-direction:column;gap:4px}
.fk-row{display:flex;gap:4px}
.fk{flex:1;min-width:0;height:36px;display:flex;align-items:center;justify-content:center;text-align:center;background:#f8f9fb;color:#1f2937;border-radius:6px;font-size:.66rem;font-weight:800;line-height:1.05;padding:0 2px;box-shadow:0 2px 0 #c9ced8;white-space:nowrap;overflow:hidden;user-select:none}
.fk.fk-gap{visibility:hidden}
.fk.hl{background:var(--red);color:#fff;box-shadow:0 2px 0 var(--red-d),0 0 0 3px #fecdd3;animation:fkpulse 1.6s ease-in-out infinite}
@keyframes fkpulse{50%{box-shadow:0 2px 0 var(--red-d),0 0 0 6px rgba(254,205,211,.6)}}
.zones .fk.z-alpha,.zdot.z-alpha{background:#f1f5f9}.zones .fk.z-num,.zdot.z-num{background:#fef3c7}.zones .fk.z-edit,.zdot.z-edit{background:#fce7f3}.zones .fk.z-mod,.zdot.z-mod{background:#dbeafe}.zones .fk.z-fn,.zdot.z-fn{background:#ede9fe}.zones .fk.z-nav,.zdot.z-nav{background:#ccfbf1}.zones .fk.z-arrow,.zdot.z-arrow{background:#ffedd5}.zones .fk.z-pad,.zdot.z-pad{background:#dcfce7}
.zdot{display:inline-block;width:14px;height:14px;border-radius:4px;vertical-align:-2px;margin-right:6px;border:1px solid #cbd5e1}
.zone-legend{display:flex;flex-wrap:wrap;gap:6px 16px;justify-content:center;margin:8px 0 0}
.keyfind .fk{cursor:pointer;transition:transform .08s}.keyfind.kf-on .fk:hover{background:#fff7ed}
.keyfind .fk.kf-ok{background:#22c55e!important;color:#fff;transform:scale(1.08)}.keyfind .fk.kf-bad{background:#f59e0b!important;color:#fff;animation:fkshake .3s}
@keyframes fkshake{25%{transform:translateX(-3px)}75%{transform:translateX(3px)}}
.kf-bar{display:flex;flex-wrap:wrap;align-items:center;gap:6px 16px;margin:6px 0}.kf-q{font-size:1.15rem;font-weight:800;margin:0;flex:1 1 260px;min-height:1.6em}.kf-score{margin:0}
.timeline{list-style:none;padding:0;border-left:4px solid var(--red-m);margin:16px 0 16px 8px}.timeline li{position:relative;padding:0 0 14px 20px}.timeline li::before{content:"";position:absolute;left:-10px;top:6px;width:16px;height:16px;border-radius:50%;background:var(--red);border:3px solid #fff;box-shadow:0 0 0 2px var(--red-m)}
.facts-list li{margin-bottom:8px}
@media (prefers-reduced-motion:reduce){.fk.hl{animation:none}}
@media print{.keyfind{display:none}}

/* Footer social icons */
.f-social{list-style:none;display:flex;gap:10px;padding:0;margin:14px 0 0}
.site-f .f-social a{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:var(--red);color:#fff;opacity:1;box-shadow:0 3px 0 var(--red-d);transition:transform .12s,background .12s,color .12s}
.site-f .f-social a:hover,.site-f .f-social a:focus-visible{background:#fff;color:var(--red);text-decoration:none;transform:translateY(-2px)}
.site-f .f-social a:focus-visible{outline:3px solid #fecdd3;outline-offset:2px}

/* Skip ahead */
.skip-tag{display:inline-block;background:#fff7ed;color:#9a3412;border:1.5px dashed #fdba74;border-radius:999px;padding:1px 9px;font-size:.78rem;font-weight:800;white-space:nowrap}
.lesson-tile.skipped{border-style:dashed;border-color:#fdba74;background:#fffbf5}
.skip-card{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px}.skip-card .rocky{flex:0 1 auto}.skip-card>p{flex-basis:100%;margin:0}
.skip-form{display:flex;flex-wrap:wrap;gap:8px;align-items:center;flex:1 1 300px}.skip-form select{flex:1 1 220px;min-width:0;max-width:100%;padding:9px 10px;border:2px solid var(--line);border-radius:12px;font:inherit;font-weight:700;background:#fff}
.chip.chip-skip{border-style:dashed;border-color:#fdba74}.chip.chip-skip:hover{background:#fff7ed}
.test-rocky{margin:-4px 0 10px}
.skip-form{min-width:0;flex:1 1 240px}.skip-form select{width:100%;flex:1 1 200px}
@media (max-width:560px){.skip-card{display:block}.skip-form{margin-top:8px}.skip-form .btn{width:100%}}
/* Hands overlay on the on-screen keyboard */
.kb-tools{display:flex;justify-content:flex-end;margin:-4px 0 4px}.hands-tog{font-size:.85rem;font-weight:700;color:#4b5563;cursor:pointer;display:inline-flex;gap:6px;align-items:center}
.kb-stage{position:relative}.kb-stage.ov-on{padding-bottom:clamp(36px,7vw,78px)}
.hand-ov{position:absolute;left:0;top:0;width:100%;height:100%;pointer-events:none;overflow:visible;display:none}.kb-stage.ov-on .hand-ov{display:block}
.kb-stage.ov-on+.hands{display:none}
.hpalm{fill:none;stroke-width:2;stroke-linecap:round}
.hf{transform-box:view-box;transform-origin:0 0;transition:transform .32s cubic-bezier(.3,.7,.3,1)}
.hf path{fill:none;stroke:#8b93a1;stroke-opacity:.85;stroke-width:2.2;stroke-linejoin:round;stroke-linecap:round}
.hf.on path{stroke-width:3.5;stroke-opacity:1;fill-opacity:.32;filter:drop-shadow(0 0 3px rgba(225,29,46,.55))}
.hf-lp.on path{stroke:#e11d48;fill:var(--f-lp)}.hf-lr.on path{stroke:#ea580c;fill:var(--f-lr)}.hf-lm.on path{stroke:#ca8a04;fill:var(--f-lm)}.hf-li.on path{stroke:#16a34a;fill:var(--f-li)}.hf-th.on path{stroke:#e11d2e;fill:#fecdd3}.hf-ri.on path{stroke:#0284c7;fill:var(--f-ri)}.hf-rm.on path{stroke:#7c3aed;fill:var(--f-rm)}.hf-rr.on path{stroke:#db2777;fill:var(--f-rr)}.hf-rp.on path{stroke:#dc2626;fill:var(--f-rp)}
@media (max-width:520px){.kb-stage.ov-on{padding-bottom:0}.kb-stage.ov-on .hand-ov{display:none}.kb-stage.ov-on+.hands{display:block}.kb-tools{display:none}}
@media (prefers-reduced-motion:reduce){.hf{transition:none}}
/* Lesson full-screen mode (full-viewport layout) */
body.lesson-full{overflow:hidden}
body.lesson-full #tr-app{position:fixed;inset:0;z-index:60;background:#fff;overflow:auto;padding:16px max(16px,calc((100vw - 1040px)/2)) 24px}
.fs-btn{white-space:nowrap}

/* curriculum level 2 */
.preflight{margin:0 0 18px}.preflight summary{font-weight:800;cursor:pointer}.preflight ul{margin:10px 0 4px 18px}
.np-mini{margin:18px auto 0;max-width:340px;text-align:center}.np-grid{display:grid;grid-template-columns:repeat(4,56px);grid-auto-rows:48px;gap:6px;justify-content:center}
.np-k{display:flex;align-items:center;justify-content:center;border:2px solid #cbd5e1;border-radius:10px;font:800 1.15rem ui-monospace,monospace;background:#fff;box-shadow:0 3px 0 #cbd5e1}
.np-k.f-ri{background:var(--f-ri)}.np-k.f-rm{background:var(--f-rm)}.np-k.f-rr{background:var(--f-rr)}.np-k.f-rp{background:var(--f-rp)}.np-k.f-th{background:var(--f-th)}
.np-grid .np-k:nth-child(1){font-size:.75rem}.np-zero{grid-column:span 2}.np-bump{text-decoration:underline;text-decoration-thickness:3px}
.np-tall{grid-row:span 2}.np-k.np-tall:last-of-type{font-size:.8rem}
.np-scroll{overflow-x:auto;max-width:100%}
.grid2>*{min-width:0}
.ad-slot{margin:28px auto;padding:10px 0;border-top:1px solid var(--line);min-height:120px}.ad-slot .ad-label{display:block;font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:#94a3b8;margin-bottom:6px}

/* ---------- Story books ---------- */
.bk-shelf{margin:18px 0}.bk-card{display:flex;flex-direction:column;gap:10px;padding:12px;text-decoration:none;color:inherit;transition:transform .2s}.bk-card:hover{transform:translateY(-3px)}
.bk-card-b{display:flex;flex-direction:column;gap:4px}.bk-prog-pill{align-self:flex-start;background:#fef3c7;color:#92400e;border-radius:999px;padding:2px 10px;font-size:.8rem;font-weight:800}
.bk-cov{position:relative;display:block;border-radius:6px 14px 14px 6px;overflow:hidden;background:var(--bc);box-shadow:inset 10px 0 0 rgba(0,0,0,.18),0 8px 22px rgba(15,23,42,.18);aspect-ratio:16/10.5}
.bk-cov img{display:block;width:100%;height:100%;object-fit:cover;object-position:70% 50%}
.bk-cov::before{content:"";position:absolute;inset:0 auto 0 0;width:12px;background:linear-gradient(90deg,rgba(0,0,0,.28),rgba(255,255,255,.15) 60%,transparent);z-index:2}
.bk-cov-t{position:absolute;left:0;right:0;bottom:0;padding:10px 14px 12px 22px;background:linear-gradient(transparent,var(--bc) 40%);color:#fff;display:flex;flex-direction:column;text-shadow:0 1px 2px rgba(0,0,0,.35)}
.bk-cov-t small{font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;opacity:.9}.bk-cov-t b{font-family:var(--fh,inherit);font-size:clamp(1.05rem,2.4vw,1.6rem);line-height:1.1}.bk-cov-t em{font-style:normal;font-size:.8rem;opacity:.9}
.bk-cover-wrap{perspective:1800px;display:flex;justify-content:center;padding:18px 0 8px}
.bk-book{position:relative;width:min(640px,100%);transform-style:preserve-3d}
.bk-inside{position:absolute;inset:0;border-radius:6px 14px 14px 6px;background:repeating-linear-gradient(#fffdf7 0 26px,#f1ead8 27px);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 22px rgba(15,23,42,.18)}
.bk-front{position:relative;display:block;width:100%;padding:0;border:0;background:none;cursor:pointer;transform-origin:left center;transition:transform .95s cubic-bezier(.6,.05,.3,1);transform-style:preserve-3d;backface-visibility:hidden;z-index:2;font:inherit}
.bk-front .bk-cov-t b{font-size:clamp(1.4rem,4vw,2.4rem)}.bk-open-cta{position:absolute;top:14px;right:14px;background:#fff;color:#0f172a;border-radius:999px;padding:8px 16px;font-weight:800;box-shadow:0 4px 12px rgba(0,0,0,.2);z-index:3}
.bk-front:hover .bk-open-cta,.bk-front:focus-visible .bk-open-cta{background:var(--red,#e11d2e);color:#fff}
.bk-book.opening .bk-front{transform:rotateY(-165deg)}
.bk-wrap{margin:8px 0 18px}
.bk-head{display:flex;align-items:center;flex-wrap:wrap;gap:10px 14px;margin-bottom:14px}.bk-head h2{margin:0;font-size:1.3rem;flex:1 1 200px}
.bk-troph{font-weight:800;background:#fef3c7;border-radius:999px;padding:4px 12px}.bk-pct{display:flex;align-items:center;gap:8px}.bk-bar{display:inline-block;width:120px;height:10px;border-radius:9px;background:#e5e7eb;overflow:hidden}.bk-bar i{display:block;height:100%;background:linear-gradient(90deg,#f59e0b,#e11d2e)}
.bk-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px}
.bk-ch{position:relative;display:flex;flex-direction:column;text-align:left;padding:0 0 12px;border:2px solid var(--line,#e5e7eb);border-radius:16px;background:#fff;cursor:pointer;overflow:visible;font:inherit;color:inherit;transition:transform .15s,box-shadow .15s}
.bk-ch:hover{transform:translateY(-3px);box-shadow:0 8px 18px rgba(15,23,42,.12)}.bk-ch.done{border-color:#22c55e}.bk-ch.skipped{border:2px dashed #f59e0b}
.bk-thumb{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px 14px 0 0;display:block;height:auto}
.bk-ch.locked .bk-thumb{filter:grayscale(.85) brightness(.9)}.bk-num{position:absolute;top:8px;left:8px;background:var(--bc);color:#fff;font-weight:900;border-radius:10px;padding:2px 9px;font-size:1.05rem}
.bk-ch-t{font-weight:800;padding:8px 12px 2px}.bk-ch-s{padding:0 12px;font-size:.85rem;color:#64748b}
.bk-tip{position:absolute;top:-14px;right:-6px;background:#0f172a;color:#fff;font-weight:800;font-size:.85rem;padding:6px 12px;border-radius:12px;animation:bkBob 1.6s ease-in-out infinite;z-index:3}.bk-tip::after{content:"";position:absolute;bottom:-6px;left:22px;border:6px solid transparent;border-top-color:#0f172a;border-bottom:0}
@keyframes bkBob{50%{transform:translateY(-5px)}}
.bk-stage{position:relative;aspect-ratio:16/9;perspective:2000px;border-radius:18px;overflow:hidden;box-shadow:0 10px 30px rgba(15,23,42,.2);background:#0f172a}
.bk-scene{position:absolute;inset:0;transform-origin:left center;backface-visibility:hidden;background-size:cover}
.bk-scene.turning{animation:bkTurn .82s cubic-bezier(.55,.05,.35,1) forwards;z-index:2;box-shadow:12px 0 30px rgba(0,0,0,.35)}
@keyframes bkTurn{0%{transform:rotateY(0)}100%{transform:rotateY(-105deg);opacity:.4}}
.bk-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.bk-cloud{position:absolute;left:3%;top:50%;transform:translateY(-50%);width:40%;padding:clamp(18px,3.4vw,44px) clamp(18px,3vw,40px)}
.bk-cloud-bg{position:absolute;inset:0;width:100%;height:100%;fill:#fff;filter:drop-shadow(0 6px 14px rgba(15,23,42,.18))}
.bk-cloud .typer-host{position:relative}.bk-cloud .typer{background:none;box-shadow:none;border:0;padding:0;margin:0}.bk-cloud .t-stats{display:none}
.bk-cloud .t-text{font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;font-size:clamp(.95rem,1.75vw,1.32rem);line-height:1.6;background:none;border:0;padding:0;min-height:0;max-height:none;letter-spacing:0;color:#334155;word-break:normal}
.bk-cloud .t-start{font-size:.8rem;margin:6px 0 0}.bk-cloud .t-start:empty,.typer-host.started .t-start{display:none}
.bk-cloud .ch.ok{color:#16a34a}.bk-cloud .ch.fixed{color:#ea580c}.bk-cloud .ch.cur{background:none;box-shadow:inset 0 -3px 0 #2563eb;animation:bkBlink 1s steps(1) infinite}
@keyframes bkBlink{50%{box-shadow:inset 0 -3px 0 transparent}}
.bk-bar2{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:10px}.bk-where{flex:1 1 220px;font-weight:700;color:#475569}
.bk-end{position:relative;border-radius:18px;overflow:hidden;min-height:420px;display:flex;align-items:center;justify-content:center;padding:24px;box-shadow:0 10px 30px rgba(15,23,42,.2)}
.bk-end .bk-art{filter:brightness(.55) saturate(1.1)}.bk-end-card{position:relative;background:#fff;border-radius:22px;padding:22px 28px;text-align:center;max-width:520px;box-shadow:0 14px 40px rgba(0,0,0,.35)}
.bk-theend{font-size:clamp(2.2rem,6vw,3.4rem);margin:0 0 6px;font-family:Georgia,serif;font-style:italic;color:var(--bc)}.bk-end-stars{font-weight:800;font-size:1.15rem}
.bk-badge{display:inline-flex;flex-direction:column;align-items:center;gap:2px;padding:12px 20px;border-radius:16px;background:#f1f5f9;filter:grayscale(1);opacity:.6;margin:6px 0 12px}.bk-badge.got{filter:none;opacity:1;background:#fef3c7;animation:bkPop .6s ease-out}.bk-badge span{font-size:2.4rem}
@keyframes bkPop{0%{transform:scale(.4)}70%{transform:scale(1.15)}100%{transform:scale(1)}}
.bk-dash{display:grid;grid-template-columns:1fr auto;gap:2px 10px;align-items:center;margin:8px 0}.bk-dash small{grid-column:1/-1;color:#64748b}
.bk-toc li{margin:6px 0}
@media (max-width:700px){.bk-stage{aspect-ratio:auto;overflow:visible;box-shadow:none;background:none;min-height:0}.bk-scene{position:relative}.bk-scene .bk-art{position:relative;display:block;height:auto;aspect-ratio:16/9;border-radius:14px}.bk-cloud{position:relative;left:auto;top:auto;transform:none;width:auto;margin-top:-18px;padding:24px 22px}.bk-cloud .t-text{font-size:1.02rem}.bk-scene.turning{position:absolute;inset:0 0 auto 0}.bk-end{min-height:0}.bk-bar{width:80px}.bk-open-cta{top:8px;right:8px;padding:6px 12px;font-size:.9rem}}
@media (prefers-reduced-motion:reduce){.bk-front,.bk-card,.bk-ch{transition:none}.bk-tip,.bk-badge.got,.bk-cloud .ch.cur{animation:none}.bk-scene.turning{animation:none}}
@media print{.bk-end,.bk-head{display:none}}