:root{--bg:#0e141b;--card:#151d27;--card2:#1b2532;--ink:#eef2f6;--muted:#9aa8b6;--acc:#4fd6b8;--acc-ink:#06201a;--acc-l:#4fd6b824;--bad:#f2907f;--bad-l:#f2907f24;--line:#263242;--lock:#3a4656;--gold:#e3be62;--bronze:#c98e62}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{background:var(--bg);color:var(--ink);-webkit-text-size-adjust:100%;-webkit-font-smoothing:antialiased;margin:0;font:16px/1.45 system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}button{font:inherit;color:inherit;cursor:pointer;touch-action:manipulation;background:0 0;border:0}button:disabled{cursor:default}h1{letter-spacing:-.01em;text-align:center;margin:8px 0 14px;font-size:24px;font-weight:650;line-height:1.25}h2{margin:2px 0 12px;font-size:17px;font-weight:600}.ic{vertical-align:-.18em;flex-shrink:0;display:inline-block}.acc{color:var(--acc)}.screen{max-width:520px;padding:10px 16px calc(120px + env(safe-area-inset-bottom));min-height:100vh;margin:0 auto;animation:.22s ease-out fade}@keyframes fade{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}.top{justify-content:space-between;align-items:center;min-height:48px;margin-bottom:6px;display:flex}.top.center{justify-content:center}.logo{letter-spacing:.01em;color:var(--ink);align-items:center;font-weight:650;display:flex}.logo-mark{background:var(--acc);width:28px;height:28px;color:var(--acc-ink);border-radius:8px;justify-content:center;align-items:center;margin-right:8px;display:inline-flex}.muted{color:var(--muted)}.small{font-size:13px}.center{text-align:center}.big{text-align:center;margin:6px 0;font-size:19px}.big .ic{margin-right:6px}.link{color:var(--acc);padding:10px 6px;font-size:15px;font-weight:500}.link.back{align-items:center;display:inline-flex}.link.back .ic{margin-right:2px}.top>.link .ic{vertical-align:middle}.center-block{margin:18px auto 0;display:block}.btn{border-radius:12px;min-height:50px;padding:13px 18px;font-size:16px;font-weight:600;transition:background-color .15s,border-color .15s,opacity .15s;display:inline-block}.btn .ic{margin-right:8px}.btn.primary{background:var(--acc);color:var(--acc-ink)}.btn.primary:disabled{background:var(--lock);color:var(--muted)}.btn.ghost{background:var(--card);border:1px solid var(--line)}.btn.ghost .ic{color:var(--acc)}.btn.ghost:disabled,.btn.ghost:disabled .ic{color:var(--muted)}.btn.danger{background:var(--bad-l);border:1px solid var(--bad);color:var(--bad)}.btn.wide{width:100%;margin:10px 0;display:block}.btn:active,.opt:active,.tile:active,.node:active{opacity:.8}.lc{letter-spacing:.06em;text-align:center;opacity:.9;border:1px solid;border-radius:5px;min-width:26px;margin-right:8px;padding:1px 5px;font-size:11px;font-weight:700;line-height:16px;display:inline-block}.avatar{text-align:center;color:#0e141b;border-radius:50%;font-weight:700;display:inline-block}.profile-grid{grid-gap:10px;grid-template-columns:1fr 1fr;margin-bottom:14px;display:grid}.profile-tile{background:var(--card);border:1px solid var(--line);border-radius:14px;flex-direction:column;align-items:center;padding:16px 8px;display:flex}.pt-avatar{line-height:0}.pt-name{margin-top:8px;font-weight:650}.pt-sub{color:var(--muted);margin-top:2px;font-size:13px}.field{margin:0 0 16px;display:block}.field>span{color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px;font-size:13px;font-weight:600;display:block}.avatar-row{grid-gap:6px;grid-template-columns:repeat(8,1fr);display:grid}.av{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:6px 0;line-height:0}.av-dot{color:#0e141b;border-radius:50%;width:26px;height:26px;font-size:12px;font-weight:700;line-height:26px;display:inline-block}.av.on{border-color:var(--acc);box-shadow:0 0 0 1px var(--acc)}.seg{grid-gap:6px;grid-auto-columns:1fr;grid-auto-flow:column;display:grid}.seg button{background:var(--card);border:1px solid var(--line);border-radius:10px;min-height:46px;padding:11px 6px;font-size:14px;font-weight:600;transition:border-color .15s,background-color .15s}.seg button.on{border-color:var(--acc);background:var(--acc-l);color:var(--acc)}.type-in{border:1px solid var(--line);background:var(--card2);width:100%;color:var(--ink);-webkit-appearance:none;border-radius:10px;padding:13px 14px;font-size:17px}.type-in::placeholder{color:#6f7d8c}.type-in:focus{border-color:var(--acc);outline:none}.who{align-items:center;padding:6px 0;font-weight:650;display:flex}.who>*{margin-right:8px}.who-av{line-height:0}.flag-btn{background:var(--card);border:1px solid var(--line);color:var(--ink);border-radius:10px;align-items:center;padding:7px 8px 7px 10px;display:flex}.flag-btn .lc{margin-right:4px}.flag-btn .ic{color:var(--muted)}.lang-row{flex-wrap:wrap;justify-content:flex-end;margin:-2px -4px 8px;display:flex}.chip{background:var(--card);border:1px solid var(--line);border-radius:10px;margin:4px;padding:7px 12px;font-size:14px;font-weight:600}.chip.on{border-color:var(--acc);color:var(--acc)}.stats{grid-gap:8px;grid-template-columns:1fr 1fr 1.6fr;margin-bottom:10px;display:grid}.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;flex-direction:column;justify-content:center;padding:9px 11px;display:flex}.stat b{font-size:17px;font-weight:650}.stat b .ic{margin-right:5px}.stat span{color:var(--muted);font-size:12px}.stat b span{font-size:inherit;color:var(--ink)}.stat.goal b{font-size:13px}.bar,.progress{background:var(--line);border-radius:99px;height:6px;margin-top:7px;overflow:hidden}.bar i,.progress i{background:var(--acc);border-radius:99px;height:100%;transition:width .35s;display:block}.progress{flex:1;margin:0 12px}.continue{font-size:15px}.path{margin-top:8px}.unit{margin:20px 0 6px}.unit-head{background:var(--card);border:1px solid var(--line);border-radius:12px;align-items:center;margin-bottom:8px;padding:10px 12px;display:flex}.unit-head>div{flex:1}.unit-icon{background:var(--card2);width:40px;height:40px;color:var(--acc);border-radius:10px;justify-content:center;align-items:center;margin-right:12px;display:inline-flex}.unit-sub{color:var(--muted);letter-spacing:.02em;font-size:12px}.unit-title{font-size:17px;font-weight:650}.lvl-Starter .unit-sub,.lvl-A1 .unit-sub,.lvl-A2 .unit-sub{color:var(--muted)}.crown{text-align:right;min-width:28px;line-height:0}.crown.gold{color:var(--gold)}.crown.bronze{color:var(--bronze)}.node-wrap{flex-direction:column;align-items:center;width:120px;margin:6px 0;display:flex}.off0{margin-left:calc(50% - 60px)}.off1{margin-left:calc(50% - 130px)}.off2{margin-left:calc(50% + 10px)}.off3{margin-left:calc(50% - 60px)}.node{background:var(--card2);width:58px;height:58px;color:var(--acc);border:1.5px solid var(--acc);border-radius:50%;justify-content:center;align-items:center;transition:transform .15s,background-color .15s;display:flex}.node.done{background:var(--acc);color:var(--acc-ink);border-color:var(--acc)}.node.cur{background:var(--acc);width:70px;height:70px;color:var(--acc-ink);box-shadow:0 0 0 6px var(--acc-l)}.node.locked{background:var(--card);color:#5b6878;border:1px solid var(--line)}.node.test:not(.locked):not(.done):not(.cur){color:var(--gold);border-color:var(--gold)}.node-label{color:var(--muted);text-align:center;margin-top:7px;font-size:12px}.home-actions{margin-top:22px}.home-actions .btn.wide{text-align:left}.board{background:var(--card);border:1px solid var(--line);border-radius:12px;margin-top:12px;padding:10px 14px}.board h3{color:var(--muted);margin:4px 0 8px;font-size:14px;font-weight:600}.board-row{border-top:1px solid var(--line);justify-content:space-between;align-items:center;padding:7px 0;display:flex}.board-who{align-items:center;display:flex}.board-who .avatar{margin-right:8px}.board-row b .ic{margin-right:4px}.session-title{text-align:center;letter-spacing:.02em;margin-bottom:8px}.exercise{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px;animation:.2s ease-out fade}.instr{text-align:center;color:var(--muted);font-size:15px;font-weight:500}.instr.ask{color:var(--ink);margin:18px 0 20px;font-size:21px;font-weight:600;line-height:1.35}.ask-word{color:var(--acc);white-space:nowrap}.prompt{text-align:center;letter-spacing:-.01em;margin:6px 0 12px;font-size:24px;font-weight:650}.prompt.small{font-size:18px;font-weight:600}.prompt-sub{text-align:center;color:var(--muted);margin:-6px 0 12px}.screen.session{flex-direction:column;display:flex}.ex-wrap{flex-direction:column;flex:1 0 auto;justify-content:center;display:flex}.pic-main{border:1px solid var(--line);background:#1b2430;border-radius:18px;width:200px;height:200px;margin:6px auto 16px;overflow:hidden}.pic-main img,.pic-box img{-webkit-user-select:none;user-select:none;pointer-events:none;width:100%;height:100%;display:block}.opts.pic-grid{grid-template-columns:1fr 1fr}.opt.pic-opt{padding:8px;line-height:0}.pic-box{background:#1b2430;border-radius:10px;width:100%;max-width:136px;margin:0 auto;display:block;position:relative;overflow:hidden}.pic-box:before{content:"";padding-top:100%;display:block}.pic-box img{position:absolute;top:0;left:0}.opt.pic-opt.sel,.opt.pic-opt.right,.opt.pic-opt.wrong{background:var(--card2)}.opt.pic-opt.sel,.opt.pic-opt.right{box-shadow:0 0 0 1px var(--acc)}.opt.pic-opt.wrong{box-shadow:0 0 0 1px var(--bad)}.audio-row{justify-content:center;margin:4px 0 14px;display:flex}.btn-audio{background:var(--acc-l);color:var(--acc);border-radius:10px;align-items:center;min-height:44px;margin:0 5px;padding:9px 14px;font-weight:600;display:inline-flex}.btn-audio .ic{margin-right:7px}.btn-audio.slow{border:1px solid var(--line);color:var(--ink);background:0 0}.btn-audio.slow .ic{color:var(--muted)}.audio-row.big .btn-audio:first-child{padding:14px 22px;font-size:18px}.opts{grid-gap:8px;grid-template-columns:1fr;display:grid}.opts.two{grid-template-columns:1fr 1fr}.opt{background:var(--card2);border:1px solid var(--line);border-radius:12px;min-height:52px;padding:13px 12px;font-size:17px;font-weight:550;transition:border-color .15s,background-color .15s}.opt.sel{border-color:var(--acc);background:var(--acc-l)}.opt.right{border-color:var(--acc);background:var(--acc-l);color:var(--acc)}.opt.wrong{border-color:var(--bad);background:var(--bad-l);color:var(--bad)}.gap-sentence{text-align:center;margin:8px 0 16px;font-size:21px;line-height:1.6}.gap{border-bottom:2px solid var(--acc);min-width:70px;color:var(--acc);padding:0 4px;font-weight:650;display:inline-block}.order-line{border-bottom:1px dashed var(--lock);flex-wrap:wrap;align-items:center;min-height:60px;margin-bottom:14px;padding:4px 0 8px;display:flex}.order-ph{color:var(--lock);padding:0 6px}.tiles{flex-wrap:wrap;justify-content:center;margin:0 -4px 14px;display:flex}.tile{background:var(--card2);border:1px solid var(--line);border-radius:10px;margin:4px;padding:9px 13px;font-size:17px;font-weight:550;transition:opacity .15s}.tile.in{background:var(--acc-l);border-color:var(--acc)}.tile.used{opacity:.25}.exercise .btn.primary{width:100%;margin-top:12px;display:block}.exercise .type-in{margin-top:4px}.exercise .link{margin:10px auto 0;display:block}.btn.mic{background:var(--acc-l);width:100%;color:var(--acc);display:block}.heard{text-align:center;color:var(--muted);margin-top:10px}.note{text-align:center;color:var(--bad);margin-top:8px;font-size:14px}.feedback{padding:0 16px calc(14px + env(safe-area-inset-bottom));background:var(--card);display:none;position:fixed;bottom:0;left:0;right:0}.feedback.show{border-top:1px solid var(--line);padding-top:12px;animation:.2s ease-out up;display:block}@keyframes up{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}.feedback.ok,.feedback.almost{background:#12302a;border-color:#1f4d43}.feedback.wrong{background:#33201e;border-color:#55332e}.feedback .fb-text,.feedback .btn{max-width:488px;margin-left:auto;margin-right:auto}.feedback .fb-text{margin-bottom:10px;font-size:16px}.feedback .fb-text b .ic{vertical-align:-.22em;margin-right:6px}.feedback.ok b,.feedback.almost b{color:var(--acc)}.feedback.wrong b{color:var(--bad)}.feedback .btn{width:100%;display:block}.inline-ask{background:var(--card);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:10px 14px}.inline-ask p{margin:4px 0 10px}.two-btn{grid-gap:10px;grid-template-columns:1fr 1fr;display:grid}.result,.lt-intro{text-align:center;padding-top:48px}.result-emoji{background:var(--acc-l);width:84px;height:84px;color:var(--acc);border:1px solid #4fd6b859;border-radius:50%;justify-content:center;align-items:center;margin:0 auto 14px;display:flex}.level-badge{background:var(--acc);color:var(--acc-ink);border-radius:8px;padding:0 10px;display:inline-block}@media (max-width:380px){html,body{font-size:15px}.prompt{font-size:21px}.pic-main{width:160px;height:160px;margin-bottom:12px}.pic-box{max-width:112px}.node{width:54px;height:54px}.node.cur{width:64px;height:64px}.stats{grid-template-columns:1fr 1fr 1.4fr}.opt{padding:12px 10px;font-size:16px}}@media (prefers-reduced-motion:reduce){.bar i,.progress i,.screen,.exercise,.feedback.show{transition:none;animation:none}}