:root{--bg: #0c0c12;--surface: #17171f;--surface-2: #21212d;--line: #2e2e3d;--text: #f3f3f8;--muted: #9797ad;--accent: #ff3d6e;--accent-dark: #c62950;--good: #3ecf7a;--good-dark: #2a9a58;--bad: #ff5252;--bad-dark: #c23a3a;--gold: #ffc53d;--radius: 16px;--tap: 52px;color-scheme:dark}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.4;overscroll-behavior-y:none}button{font:inherit;color:inherit;border:none;background:none;cursor:pointer}.app{max-width:480px;margin:0 auto;min-height:100%;display:flex;flex-direction:column;position:relative;background:radial-gradient(120% 60% at 50% 0%,#1a1424 0%,var(--bg) 60%)}.pad{padding:16px 16px calc(16px + env(safe-area-inset-bottom))}.btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;min-height:var(--tap);padding:12px 16px;border-radius:14px;font-weight:800;letter-spacing:.02em;text-transform:uppercase;font-size:15px;background:var(--surface-2);box-shadow:0 4px #14141c;transition:transform .06s ease,box-shadow .06s ease}.btn:active:not(:disabled){transform:translateY(3px);box-shadow:0 1px #14141c}.btn:disabled{opacity:.45;cursor:default}.btn-primary{background:var(--accent);box-shadow:0 4px 0 var(--accent-dark);color:#fff}.btn-good{background:var(--good);box-shadow:0 4px 0 var(--good-dark);color:#06210f}.btn-bad{background:var(--bad);box-shadow:0 4px 0 var(--bad-dark);color:#fff}.btn-ghost{background:transparent;box-shadow:none;color:var(--muted);text-transform:none;font-weight:700}.hero{padding:40px 20px 12px;text-align:center}.hero h1{margin:0;font-size:34px;font-weight:900;letter-spacing:-.02em}.hero h1 span{color:var(--accent)}.hero p{margin:8px 0 0;color:var(--muted)}.pair-card{display:flex;align-items:center;gap:14px;width:100%;text-align:left;padding:16px;margin-bottom:12px;border-radius:var(--radius);background:var(--surface);border:2px solid var(--line);box-shadow:0 4px #101017;transition:transform .06s ease,border-color .15s ease}.pair-card:active{transform:translateY(3px);box-shadow:0 1px #101017}.pair-card .flag{font-size:40px}.pair-card b{display:block;font-size:18px}.pair-card small{color:var(--muted)}.pair-card .arrow{margin-left:auto;color:var(--muted);font-size:22px}.disclaimer{margin:18px 4px 0;padding:12px 14px;border-radius:12px;background:#1c1522;border:1px solid #33203a;color:var(--muted);font-size:13px}.topbar{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:10px;padding:calc(10px + env(safe-area-inset-top)) 16px 10px;background:#0c0c12eb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.chip{display:inline-flex;align-items:center;gap:5px;padding:5px 10px;border-radius:999px;background:var(--surface-2);font-weight:800;font-size:14px}.chip.gold{color:var(--gold)}.chip.fire{color:#ff8a3d}.topbar .spacer{flex:1}.unit-head{margin:22px 0 10px;padding:14px 16px;border-radius:var(--radius);background:var(--surface);border-left:6px solid var(--lv)}.unit-head h2{margin:0;font-size:19px;font-weight:900}.unit-head p{margin:4px 0 0;color:var(--muted);font-size:13px}.unit-head .count{color:var(--lv);font-weight:800;font-size:13px}.nodes{display:flex;flex-wrap:wrap;gap:10px}.node{width:60px;height:60px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:900;font-size:15px;background:var(--surface-2);color:var(--muted);box-shadow:0 4px #101017;border:2px solid var(--line);transition:transform .06s ease}.node:active{transform:translateY(3px);box-shadow:0 1px #101017}.node.done{background:var(--lv);color:#10101a;border-color:transparent;box-shadow:0 4px #0006}.node.next{border-color:var(--lv);color:var(--text);animation:pulse 1.8s infinite}@keyframes pulse{0%,to{box-shadow:0 4px #101017}50%{box-shadow:0 4px #101017,0 0 0 6px color-mix(in srgb,var(--lv) 22%,transparent)}}.bar{flex:1;height:14px;border-radius:999px;background:var(--surface-2);overflow:hidden}.bar>i{display:block;height:100%;background:var(--accent);border-radius:999px;transition:width .3s ease}.lesson-body{flex:1;padding:20px 16px calc(var(--footer-h, 200px) + 24px)}.q-kicker{color:var(--muted);font-weight:800;text-transform:uppercase;font-size:12px;letter-spacing:.08em}.q-title{margin:6px 0 18px;font-size:24px;font-weight:900;line-height:1.2}.prompt-card{padding:18px;border-radius:var(--radius);background:var(--surface);border:2px solid var(--line);text-align:center;margin-bottom:18px}.prompt-card .big{font-size:26px;font-weight:900}.prompt-card .tr{color:var(--muted);margin-top:4px;font-size:15px}.opts{display:flex;flex-direction:column;gap:10px}.opt{display:flex;align-items:center;gap:12px;width:100%;text-align:left;min-height:var(--tap);padding:14px;border-radius:14px;background:var(--surface);border:2px solid var(--line);box-shadow:0 4px #101017;font-weight:700;transition:transform .06s ease,border-color .12s,background .12s}.opt:active:not(:disabled){transform:translateY(3px);box-shadow:0 1px #101017}.opt.sel{border-color:var(--accent);background:#241722}.opt.ok{border-color:var(--good);background:#12281b}.opt.no{border-color:var(--bad);background:#2a1414}.opt .idx{width:26px;height:26px;flex:none;border-radius:8px;background:var(--surface-2);display:grid;place-items:center;font-size:12px;color:var(--muted)}.slot{min-height:68px;padding:10px;border-radius:14px;border:2px dashed var(--line);display:flex;flex-wrap:wrap;gap:8px;align-content:flex-start;margin-bottom:18px}.bank{display:flex;flex-wrap:wrap;gap:8px}.tok{padding:10px 14px;border-radius:12px;background:var(--surface);border:2px solid var(--line);box-shadow:0 3px #101017;font-weight:800;transition:transform .06s ease,opacity .12s}.tok:active{transform:translateY(2px);box-shadow:0 1px #101017}.tok.spent{opacity:.25;pointer-events:none}.gap{display:inline-block;min-width:88px;border-bottom:3px solid var(--accent);text-align:center}.gap.filled{border-bottom-color:var(--good)}.match{display:grid;grid-template-columns:1fr 1fr;gap:10px}.match .opt{min-height:62px;font-size:15px}.levels{display:flex;flex-direction:column;gap:10px}.lvbtn{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:12px 14px;border-radius:14px;background:var(--surface);border:2px solid var(--line);box-shadow:0 4px #101017;font-weight:800}.lvbtn:active{transform:translateY(3px);box-shadow:0 1px #101017}.lvbtn small{display:block;font-weight:600;color:var(--muted);font-size:12px}.lvbtn .dot{width:12px;height:12px;border-radius:50%;flex:none}.speaker{width:100%;height:120px;border-radius:var(--radius);background:linear-gradient(160deg,#2a1830,#1b1424);border:2px solid var(--line);display:grid;place-items:center;font-size:46px;margin-bottom:12px}.speaker:active{transform:scale(.99)}.footer{position:fixed;left:0;right:0;bottom:0;z-index:10;max-width:480px;margin:0 auto;padding:14px 16px calc(14px + env(safe-area-inset-bottom));background:var(--surface);border-top:2px solid var(--line)}.footer.ok{background:#10271a;border-top-color:#1d6b3c}.footer.no{background:#291414;border-top-color:#7a2b2b}.hint{min-height:var(--tap);display:grid;place-items:center;color:var(--muted);font-weight:700}.footer .mascot{margin-bottom:10px}.entry-card{margin-bottom:12px;font-size:14px}.entry-card b{font-size:17px}.entry-card .row{color:var(--muted)}.entry-card .lit{font-style:italic}.badge{display:inline-flex;align-items:center;gap:5px;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:800;background:color-mix(in srgb,var(--lv) 20%,transparent);color:var(--lv);border:1px solid color-mix(in srgb,var(--lv) 45%,transparent)}.result{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:24px;text-align:center}.result h2{margin:4px 0 0;font-size:28px;font-weight:900}.stats{display:flex;gap:10px;width:100%;margin:18px 0 26px}.stat{flex:1;padding:12px;border-radius:14px;background:var(--surface);border:2px solid var(--line)}.stat b{display:block;font-size:22px}.stat small{color:var(--muted);font-size:12px}.hearts{letter-spacing:2px;font-size:17px}.hearts .lost{filter:grayscale(1) brightness(.5)}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.mascot{--bub: var(--surface-2);--bub-line: var(--line);display:flex;gap:10px}.mascot.row{align-items:center}.mascot.stack{flex-direction:column-reverse;align-items:center;gap:8px}.mascot.mood-win{--bub: #12281b;--bub-line: #2b7f4c}.mascot.mood-angry{--bub: #2c1414;--bub-line: #8d3232}.mascot.mood-sad{--bub: #241a2a;--bub-line: #4d3355}.mascot-img{width:auto;flex:none;transform-origin:50% 100%;animation:m-in .3s ease-out both}.mascot.mood-idle .mascot-img{animation:m-in .3s ease-out both,m-breathe 3.4s ease-in-out .3s infinite}.mascot.mood-win .mascot-img{animation:m-in .3s ease-out both,m-hop .85s ease-in-out .2s 2}.mascot.mood-angry .mascot-img{animation:m-in .3s ease-out both,m-shake .5s ease-in-out .2s 2}.mascot.mood-sad .mascot-img{animation:m-in .3s ease-out both,m-sway 4s ease-in-out .3s infinite}.bubble{position:relative;flex:1;min-width:0;padding:10px 13px;border-radius:14px;background:var(--bub);border:2px solid var(--bub-line);animation:b-pop .34s cubic-bezier(.2,1.5,.35,1) both}.bubble b{display:block;font-size:18px;font-weight:900;line-height:1.2}.bubble i{display:block;color:var(--muted);font-size:13px;margin-top:2px}.bubble span{display:block;opacity:.75;font-size:14px;margin-top:4px}.bubble:before,.bubble:after{content:"";position:absolute;border:9px solid transparent}.mascot.row .bubble{transform-origin:0 50%}.mascot.row .bubble:before{left:-9px;top:50%;margin-top:-9px;border-left:0;border-right-color:var(--bub-line)}.mascot.row .bubble:after{left:-6px;top:50%;margin-top:-9px;border-left:0;border-right-color:var(--bub)}.mascot.stack .bubble{flex:none;max-width:90%;text-align:center;transform-origin:50% 100%}.mascot.stack .bubble:before{bottom:-9px;left:50%;margin-left:-9px;border-bottom:0;border-top-color:var(--bub-line)}.mascot.stack .bubble:after{bottom:-6px;left:50%;margin-left:-9px;border-bottom:0;border-top-color:var(--bub)}@keyframes m-in{0%{opacity:0;transform:translateY(14px) scale(.85)}to{opacity:1;transform:none}}@keyframes b-pop{0%{opacity:0;transform:scale(.5)}65%{opacity:1;transform:scale(1.05)}to{opacity:1;transform:scale(1)}}@keyframes m-breathe{0%,to{transform:translateY(0) rotate(-1deg)}50%{transform:translateY(-6px) rotate(1.5deg)}}@keyframes m-hop{0%,to{transform:translateY(0) rotate(0)}25%{transform:translateY(-14px) rotate(-5deg)}55%{transform:translateY(0) rotate(3deg)}75%{transform:translateY(-5px) rotate(-2deg)}}@keyframes m-shake{0%,to{transform:translate(0) rotate(0)}20%{transform:translate(-6px) rotate(-5deg)}40%{transform:translate(6px) rotate(5deg)}60%{transform:translate(-4px) rotate(-3deg)}80%{transform:translate(4px) rotate(3deg)}}@keyframes m-sway{0%,to{transform:rotate(-2deg)}50%{transform:rotate(2deg) translateY(3px)}}@media(prefers-reduced-motion:reduce){.mascot-img,.bubble{animation:none}}