:root{--bg:#8fd3ff;--bg2:#e7f7ff;--card:#fff;--ink:#2d2060;--mute:#6a6786;--dot:#2d206022;--sh:#2d2060;--pink:#ff6b9a;--cyan:#3ec6e0;--yel:#ffd23f;--lime:#7bd88f;--red:#e63946;color-scheme:light;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg2:#15122e;--bg:#2a2466;--card:#2b2950;--ink:#f6f0dc;--mute:#b3afd0;--dot:#ffffff14;--sh:#000;color-scheme:dark}}
:root[data-theme="dark"]{--bg2:#15122e;--bg:#2a2466;--card:#2b2950;--ink:#f6f0dc;--mute:#b3afd0;--dot:#ffffff14;--sh:#000;color-scheme:dark}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;min-height:100vh;color:var(--ink);font-family:"Trebuchet MS","Avenir Next","PingFang SC","Segoe UI",sans-serif;background:radial-gradient(circle at 18% 10%,#fff 0 38px,transparent 39px),radial-gradient(circle at 88% 20%,#ffffffaa 0 52px,transparent 53px),linear-gradient(var(--bg),var(--bg2)) fixed}
#app{max-width:520px;margin:0 auto;padding:16px 16px 40px}
.card{background:var(--card);border:3px solid var(--ink);border-radius:26px;box-shadow:4px 4px 0 var(--sh);padding:14px 16px;margin-bottom:16px}
.btn{font:inherit;border:3px solid var(--ink);border-radius:24px;background:linear-gradient(#ffe066,#ffb703);color:#1d1b3a;font-weight:800;font-size:17px;padding:12px 18px;box-shadow:3px 3px 0 var(--sh);cursor:pointer}
.btn:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--sh)}.btn:disabled{opacity:.45;cursor:default}
.btn.full{width:100%}.btn.sm{font-size:13px;padding:6px 12px;background:var(--card);color:var(--ink)}
.top{display:flex;align-items:center;gap:10px;margin-bottom:14px}.top .grow{flex:1}
h1{margin:0;font-size:28px}.sub{color:var(--mute);font-size:14px;line-height:1.6;margin:4px 0 0}
.login{text-align:center;padding-top:30px}.login .big svg{width:130px;height:130px;animation:bob 1.6s ease-in-out infinite}@keyframes bob{50%{transform:translateY(-7px)}}
input{font:inherit;font-size:18px;width:100%;box-sizing:border-box;border:3px solid var(--ink);border-radius:14px;padding:12px;margin:14px 0 12px;background:var(--card);color:var(--ink);text-align:center}
.warn{background:var(--pink);color:#1d1b3a;border:3px solid var(--ink);border-radius:12px;padding:8px 12px;margin-bottom:12px;font-weight:700;font-size:14px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;text-align:center}
.stats div{border:3px solid var(--ink);border-radius:14px;padding:8px 4px;color:#1d1b3a;font-size:12px;font-weight:700}
.stats b{display:block;font-size:24px}
.lvl{display:flex;align-items:center;gap:14px;cursor:pointer;background:var(--card)}
.lvl.lock{opacity:.5;cursor:default}
.badge{min-width:58px;height:58px;border:3px solid var(--ink);border-radius:50%;background:var(--c);color:#1d1b3a;display:grid;place-items:center;font-weight:900;font-size:19px;box-shadow:2px 2px 0 var(--sh)}
.lvl .in{flex:1;line-height:1.6}.lvl b{font-size:16px}.lvl small{display:block;color:var(--mute);font-size:12px}.star{color:#f5a300;letter-spacing:2px}
.bones{flex:1;text-align:center;font-size:22px;letter-spacing:4px}.bones .off{opacity:.2;filter:grayscale(1)}
.hearts{color:var(--pink);font-size:20px;letter-spacing:2px;-webkit-text-stroke:1px var(--ink)}
.scene{display:inline-block;background:var(--cyan);color:#1d1b3a;border:3px solid var(--ink);border-radius:20px;padding:3px 12px;font-size:12px;font-weight:800;margin-bottom:14px}
.dogrow{display:flex;gap:14px;align-items:flex-start;margin-bottom:12px}
.dog{width:88px;height:88px;flex:none;animation:bob 1.6s ease-in-out infinite}.dog svg,.res svg{width:100%;height:100%}.res .em{width:120px;height:120px;margin:0 auto}
.bubble{position:relative;flex:1;background:var(--card);border:3px solid var(--ink);border-radius:16px;padding:10px 14px;font-size:14px;line-height:1.6}
.bubble::before{content:"";position:absolute;left:-10px;top:20px;width:14px;height:14px;background:var(--card);border-left:3px solid var(--ink);border-bottom:3px solid var(--ink);transform:rotate(45deg)}
.sent{display:flex;flex-wrap:wrap;margin:6px -5px 18px}
.ch{font:inherit;font-size:19px;font-weight:600;border:3px solid var(--ink);border-radius:22px;background:var(--card);color:var(--ink);padding:7px 12px;margin:5px;box-shadow:2px 2px 0 var(--sh);cursor:pointer;transition:transform .12s}
.ch.sel{background:var(--cyan);color:#1d1b3a;transform:rotate(-2deg) translateY(-3px)}
.ch.good{background:var(--lime);color:#1d1b3a}.ch.wrong{background:var(--pink);color:#1d1b3a}.ch.miss{border-style:dashed;border-color:#ff8a3d}
.res{text-align:center}.res .em{font-size:76px}.res h2{font-size:26px;margin:6px 0}
.cf{position:fixed;top:-30px;font-size:22px;pointer-events:none;animation:fall 2.4s linear forwards}
@keyframes fall{to{transform:translateY(110vh) rotate(540deg)}}
html{-webkit-text-size-adjust:100%}button,.lvl,tr.u{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
.tw{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:13px}th,td{padding:7px 9px;border-bottom:2px solid #8884;text-align:left;white-space:nowrap}td.s{white-space:normal;min-width:260px}tr.u{cursor:pointer}tr.u:hover{background:#ffd23f55}.rate{display:inline-block;height:8px;border-radius:4px;background:var(--pink);vertical-align:middle;margin-left:6px}.card h2{font-size:16px;margin:0 0 10px}
@media(min-width:700px){#app{max-width:760px;padding-top:28px}.levels{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}.ch{font-size:22px;padding:9px 16px}.bubble{font-size:15px}.dog{width:104px;height:104px}h1{font-size:32px}}
@media(max-width:420px){#app{padding:12px 12px 32px}.ch{font-size:17px;padding:6px 10px;margin:4px}.stats b{font-size:20px}.badge{min-width:50px;height:50px;font-size:16px}h1{font-size:24px}.dog{width:72px;height:72px}}
*{box-sizing:border-box}body{min-height:100svh}#app{width:100%;max-width:820px}button,a,input,select,summary{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #007aff;outline-offset:4px}button:disabled{cursor:default}input{min-height:48px;text-align:left;margin:6px 0 18px}button{overflow-wrap:anywhere}.field-label{display:block;text-align:left;font-size:14px;font-weight:700;margin-top:10px}.auth-tabs{display:flex;gap:10px;justify-content:center;margin:20px 0}.auth-tabs .selected{background:var(--cyan);color:#1d1b3a}.login{max-width:440px;margin:auto}.local-note{background:var(--yel);color:#1d1b3a;border:2px solid var(--ink);border-radius:12px;padding:10px;font-size:13px;margin-bottom:18px}.resume-card{display:flex;align-items:center;gap:16px;justify-content:space-between}.level-button{font:inherit;text-align:left;width:100%;color:var(--ink);margin-top:0}.section-intro{margin-bottom:14px}.small-note{font-size:12px;margin-top:14px}.link-button{appearance:none;border:0;background:none;color:var(--ink);font:inherit;text-decoration:underline;text-underline-offset:3px;padding:8px;cursor:pointer;min-height:44px}footer{display:flex;gap:12px;justify-content:center;align-items:center;margin-top:22px;font-size:13px}footer a{color:var(--mute);padding:10px}.lesson-top{flex-wrap:wrap}.bones{font-size:20px;letter-spacing:2px;white-space:nowrap}.ch{min-height:46px;max-width:calc(100% - 10px);overflow-wrap:anywhere;line-height:1.35}.ch:disabled{opacity:1}.sent{align-items:flex-start}.lesson-count{text-align:center;margin-top:14px}.feedback-card{text-align:left;margin-top:14px}.feedback-card p{line-height:1.65;margin:8px 0;overflow-wrap:anywhere}.result-stars{font-size:36px}.adminapp{max-width:1240px!important}.admin-top{flex-wrap:wrap}.admin-filters{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}.admin-filters label{flex:1;min-width:130px;font-size:13px;font-weight:700}.admin-filters select{display:block;width:100%;font:inherit;font-size:16px;min-height:44px;border:2px solid var(--ink);border-radius:10px;background:var(--card);color:var(--ink);padding:7px;margin-top:6px}.admin-columns{display:grid;grid-template-columns:1fr 1fr;gap:16px}.adminapp h2{font-size:18px}table td.s{min-width:240px;max-width:640px}.attempt summary{cursor:pointer;line-height:1.7}.attempt summary>small{display:block;color:var(--mute);margin-top:5px}.attempt p{line-height:1.7;overflow-wrap:anywhere}.result-label{font-weight:800}.result-label.ok{color:#167546}.result-label.bad{color:#b82348}.attempt-tokens{margin-top:18px;line-height:2.7}.answer-token{display:inline-block;padding:0 5px;border-radius:7px;border:2px solid transparent;line-height:1.7}.answer-token.core{background:var(--lime);color:#1d1b3a}.answer-token.extra{background:var(--pink);color:#1d1b3a}.answer-token.missing{border:2px dashed #e77522}.answer-token small{font-size:11px;margin-left:3px}.pagination{display:flex;justify-content:center;gap:20px;margin:20px}.rule-example{background:var(--bg2);border-radius:12px;padding:18px;line-height:1.9}#app>section p,#app>section li{line-height:1.8}#app>section li{margin-bottom:9px}@media(min-width:1000px){#app{padding-top:36px}.levels{grid-template-columns:1fr 1fr}.ch{font-size:23px}.login{padding-top:20px}}@media(max-width:650px){.admin-columns{grid-template-columns:1fr}.resume-card{flex-direction:column;align-items:stretch}.admin-top .grow{flex-basis:100%}.top .grow{min-width:0}.top h1{overflow-wrap:anywhere}.bones{flex-basis:auto;font-size:17px;letter-spacing:0}.hearts{font-size:18px}.lesson-top{gap:7px}.lesson-top .btn{font-size:12px;padding:7px 9px}.admin-filters label{min-width:calc(50% - 12px)}.admin-filters .btn{width:100%}}@media(max-width:360px){#app{padding:10px}.dog{width:60px;height:60px}.dogrow{gap:10px}.bubble{font-size:13px;padding:9px 11px}.ch{font-size:17px;padding:7px 9px;margin:4px}.lesson-top .bones{order:3;flex-basis:100%;text-align:center}.lesson-top .hearts{margin-left:auto}.badge{min-width:45px;height:45px}.lvl{gap:10px;padding:12px}.lvl b{font-size:14px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.start-note{margin:24px 0;line-height:1.7}.start-note>p:first-child{font-weight:800;font-size:20px}.level-stats-tabs{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;margin:18px 0}.level-stats-tabs .btn{display:grid;align-content:center;gap:5px;min-height:66px}.level-stats-tabs .btn span{font-size:12px;font-weight:400}.level-stats-tabs .selected{background:var(--cyan);color:#1d1b3a}.error-table td{vertical-align:middle}.error-table td.s{min-width:260px;max-width:730px;line-height:1.65}.error-table .has-errors{background:color-mix(in srgb,var(--pink) 17%,var(--card))}.error-table .ranked-error{background:color-mix(in srgb,var(--pink) 29%,var(--card))}.error-rank{display:inline-grid;place-items:center;width:36px;height:36px;border:2px solid var(--ink);border-radius:50%;font-size:20px;font-weight:900;color:#1d1b3a}.rank-1{background:var(--yel)}.rank-2{background:var(--cyan)}.rank-3{background:var(--lime)}.wrong-count{font-weight:800}.question-id{display:block;color:var(--mute);font-size:11px;margin-top:4px}.sentence-stats h2{font-size:20px}@media(max-width:700px){.level-stats-tabs{grid-template-columns:repeat(3,minmax(0,1fr))}.level-stats-tabs .btn{font-size:13px;padding:8px 5px}.level-stats-tabs .btn span{font-size:11px}}@media(max-width:370px){.level-stats-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}}

.sync-status{max-width:1000px;margin:8px auto 0;padding:0 16px;min-height:20px;font-size:12px;line-height:1.6;color:#454264;text-align:center}body:has(.adminapp) .sync-status{display:none}