:root{color-scheme:dark;--bg:#101311;--panel:#191d1a;--line:#303731;--text:#f0f2ed;--muted:#9ba69c;--lime:#c5f277;--error:#ff9191;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button,a,textarea{-webkit-tap-highlight-color:transparent}button,textarea{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}button:focus-visible,a:focus-visible{outline:2px solid var(--lime);outline-offset:5px}a{color:inherit;text-decoration:none}button{color:inherit}button,textarea{border:1px solid var(--line)}[hidden]{display:none!important}.topbar{height:84px;max-width:1440px;margin:auto;padding:0 5%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.back{font:11px ui-monospace,monospace;letter-spacing:1.5px;color:var(--muted)}.back:hover{color:var(--lime)}.brand{display:flex;align-items:center;font-size:25px;font-weight:800;letter-spacing:-1px}.brand-icon{font-size:23px;display:inline-flex;align-items:center;justify-content:center;background:var(--lime);color:var(--bg);width:35px;height:35px;border-radius:10px;margin-right:10px}.brand-icon span{font-size:15px}.brand-dot{color:var(--lime)}main{max-width:1320px;padding:0 36px;margin:auto}.intro{display:flex;align-items:center;justify-content:space-between;gap:40px;padding:58px 0 40px}.eyebrow{font:10px ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:1.8px;color:var(--lime);line-height:1.6;margin:0 0 16px}.live-dot{display:inline-block;background:var(--lime);width:6px;height:6px;border-radius:50%;margin-right:8px;box-shadow:0 0 12px #c5f25555}h1{font-size:clamp(36px,4vw,54px);line-height:1.12;letter-spacing:-2.4px;margin:0 0 18px;font-weight:650}h1>span{color:var(--lime)}.subtitle{color:var(--muted);font-size:14px;line-height:1.8;margin:0}.profile{width:315px;flex-shrink:0;padding:24px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(120deg,#242c21,#191d1a)}.profile-top{display:flex;align-items:center;gap:12px}.rank-icon{display:grid;place-items:center;width:44px;height:44px;border:1px solid #5e7544;border-radius:50%;font-size:25px;color:var(--lime)}small{display:block;color:var(--muted);font:9px ui-monospace,monospace;letter-spacing:1.5px;margin-bottom:5px}.profile strong{font-size:16px}.profile #xp{margin-left:auto;font:11px ui-monospace,monospace;color:var(--lime)}.track{height:4px;background:#343d2f;border-radius:4px;overflow:hidden}.track i{display:block;height:100%;width:0;background:var(--lime);transition:width .2s}.profile .track{margin:23px 0 12px}.profile p{margin:0;font-size:11px;color:var(--muted)}.tabs{display:flex;gap:28px;border-bottom:1px solid var(--line);margin-bottom:28px;overflow-x:auto}.tabs button{white-space:nowrap;padding:17px 0;background:none;border:0;border-bottom:2px solid transparent;color:#a0ab9f;font:10px ui-monospace,monospace}.tabs button span{font:13px system-ui;margin-left:7px}.tabs button.active{color:var(--lime);border-bottom-color:var(--lime)}.workspace{display:grid;grid-template-columns:285px minmax(0,1fr);gap:24px;align-items:start}.panel{background:var(--panel);border:1px solid var(--line);border-radius:15px}.curriculum{padding:22px 16px}.section-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.section-top h2{font-size:13px;font-weight:600;margin:0}.section-top>span{font:10px ui-monospace,monospace;color:var(--muted)}.compact{font-size:11px!important;margin:9px 0 25px}.muted{color:var(--muted);font-size:13px;line-height:1.7}.module-label{font:9px ui-monospace,monospace;letter-spacing:1.3px;text-transform:uppercase;color:var(--muted);margin:24px 9px 10px}.level{width:100%;display:flex;align-items:center;gap:10px;text-align:left;padding:11px 10px;margin:4px 0;background:transparent;border:1px solid transparent;border-radius:8px}.level:hover:not(:disabled){background:#262e24}.level.selected{background:#c5f2110d;border-color:#658044}.level-index{width:24px;height:24px;display:grid;place-items:center;font:10px ui-monospace,monospace;background:#2b332c;border-radius:6px;color:#bdc6ba}.level.selected .level-index{background:var(--lime);color:var(--bg)}.level-name{font-size:11px;flex:1}.level-mark{font:10px ui-monospace,monospace;color:var(--lime)}.studio{min-width:0;display:grid;gap:18px}.exercise{padding:28px}.exercise-heading{display:flex;justify-content:space-between;gap:12px;align-items:center}.exercise-heading .eyebrow{font-size:9px;margin-bottom:7px}.exercise-heading h2{font-size:25px;letter-spacing:-.7px;margin:0}.pill{border:1px solid var(--line);padding:7px 9px;border-radius:5px;color:var(--muted);font:9px ui-monospace,monospace;white-space:nowrap}.targets{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 24px}.targets span{font:10px ui-monospace,monospace;color:#c1cbbd;background:#252c25;border-radius:5px;padding:6px 8px}.metrics{display:grid;grid-template-columns:repeat(4,1fr);padding:19px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.metrics>div{border-right:1px solid var(--line);padding-left:20px}.metrics>div:first-child{padding-left:0}.metrics>div:last-child{border:0}.metrics strong{display:block;font:30px ui-monospace,Consolas,monospace;letter-spacing:-1px}.metrics strong>span{font-size:17px;color:var(--muted)}.metrics>div>span{font:8px ui-monospace,monospace;letter-spacing:1.5px;color:var(--muted);display:block;margin-top:7px}.metrics>div:first-child strong{color:var(--lime)}.typing-shell{position:relative;margin:24px 0 18px;border-radius:10px;background:#121612;border:1px solid #2b322a;overflow:hidden}.text-display{font:23px/1.9 ui-monospace,Consolas,monospace;letter-spacing:.5px;color:#919c8f;height:164px;padding:20px 23px;overflow-y:auto;overflow-wrap:anywhere;white-space:pre-wrap;scrollbar-width:thin}.letter.correct{color:var(--lime)}.letter.current{background:#c5f22c22;box-shadow:inset 0 -2px var(--lime);color:var(--text)}.letter.wrong{background:#ff717142;color:var(--error);box-shadow:inset 0 -2px var(--error)}.idle-overlay{position:absolute;inset:0;background:#141914ed;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;padding:16px}.idle-overlay strong{font-size:14px;font-weight:500}.idle-overlay>span:last-child{color:var(--muted);font-size:11px}.enter-key{border:1px solid #526244;border-bottom:3px solid #526244;color:var(--lime);border-radius:7px;padding:3px 12px;font:24px monospace}.input-label{display:flex;justify-content:space-between;gap:10px;font-size:11px;margin-bottom:8px}.input-label span{color:var(--muted);font-size:10px}textarea{display:block;resize:none;width:100%;height:46px;border-radius:8px;background:#111611;padding:12px;color:var(--text);font-size:14px;outline:none}textarea:focus{border-color:var(--lime);box-shadow:0 0 0 3px #c5f2220a}textarea:disabled{opacity:.6}.input-status{font-size:10px;min-height:15px;margin:9px 0 18px;color:var(--muted)}.input-status.error{color:var(--error)}.exercise-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:19px}.exercise-footer>span{font:10px ui-monospace,monospace;color:var(--muted)}.exercise-footer>div{display:flex;gap:8px}.quiet,.primary{border-radius:7px;font-size:11px;padding:11px 14px;line-height:1.2}.quiet{background:transparent;border:1px solid var(--line);color:#bac4b7}.quiet:hover{border-color:#76866c;color:var(--text)}.primary{background:var(--lime);border:1px solid var(--lime);color:#1c2612;font-weight:650}.primary:hover{background:#d6ff93}.primary span{margin-left:16px}.keyboard-panel{padding:22px}.keyboard{max-width:620px;margin:23px auto 19px}.key-row{display:flex;justify-content:center;gap:5px;margin:5px 0}.key{display:flex;align-items:center;justify-content:center;border:1px solid #3b4538;border-bottom:3px solid #3b4538;background:#232b23;color:#9eab98;font:12px ui-monospace,monospace;width:37px;height:35px;border-radius:5px}.key.home{text-decoration:underline;text-underline-offset:5px}.key.wide{width:65px;font-size:9px}.key.space{width:230px;font-size:9px}.key.next{background:var(--lime);border-color:#95bd4e;color:#17250b}.keyboard-caption{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:9px}.keyboard-caption i{display:inline-block;width:6px;height:6px;background:var(--lime);border-radius:2px;margin-right:5px}.tip-card{display:flex;gap:14px;padding:3px 8px;color:var(--muted);font-size:11px;line-height:1.8}.tip-card>span{color:var(--lime);font-size:25px}.tip-card p{margin:0}.tip-card strong{color:#c6d0c0;font-weight:500}.page-footer{display:flex;justify-content:space-between;gap:20px;padding:34px 0;margin-top:25px;border-top:1px solid var(--line);color:var(--muted);font:8px/1.8 ui-monospace,monospace;letter-spacing:.6px}.mode-options{padding:24px}.mode-options h2{font-size:17px;margin-top:0}.option-row{display:flex;gap:9px;flex-wrap:wrap}.option-row .selected{background:var(--lime);color:var(--bg)}.workspace.single{grid-template-columns:minmax(0,1fr);max-width:920px;margin:auto}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stat-card{padding:24px}.stat-card strong{display:block;font:32px ui-monospace,monospace;color:var(--lime);margin:15px 0 0}.stat-card span{font-size:11px;color:var(--muted)}.stats-bottom{display:grid;grid-template-columns:1.5fr 1fr;gap:20px;margin-top:20px}.stats-bottom>.panel,.history-panel{padding:25px}.stats-bottom h2,.history-panel h2{font-size:16px;margin:0 0 18px}.chart{width:100%;height:170px}.chart-note{font-size:10px;color:var(--muted)}.badge{display:flex;gap:13px;padding:13px 0;border-bottom:1px solid var(--line);opacity:.5}.badge.earned{opacity:1}.badge-icon{color:var(--lime);font-size:22px}.badge strong{font-size:12px}.badge p{font-size:10px;color:var(--muted);margin:4px 0}.history-panel{margin-top:20px;overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:12px;text-align:left;white-space:nowrap}td,th{padding:13px 12px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-weight:400;font-size:10px}.weak-keys{display:flex;gap:7px;flex-wrap:wrap;margin:16px 0}.weak-keys span{padding:7px 10px;background:#343028;border-radius:5px;color:#eac699;font:12px monospace}.empty{color:var(--muted);padding:26px 0;font-size:13px;line-height:1.8}dialog{width:min(510px,calc(100% - 30px));border:1px solid #4e6041;border-radius:20px;background:#1b221b;color:var(--text);padding:36px;box-shadow:0 30px 120px #0009}dialog::backdrop{background:#080d08cc;backdrop-filter:blur(5px)}dialog h2{font-size:29px;letter-spacing:-1px;margin:10px 0}.dialog-close{position:absolute;top:14px;right:14px;padding:7px 10px}.result-stars{font-size:36px;letter-spacing:8px;color:var(--lime);margin:22px 0 12px}.result-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;border-block:1px solid var(--line);padding:21px 0;margin:24px 0}.result-metrics strong{display:block;color:var(--lime);font:28px monospace}.result-metrics span{display:block;font-size:10px;color:var(--muted);margin-top:8px}.result-details{font-size:12px;line-height:1.9;color:#b6c3ad}.result-actions{display:flex;justify-content:space-between;gap:12px;margin-top:26px}#storage-warning{color:#eac699;font-size:12px}
@media(min-width:1450px){.intro{padding-top:65px}}
@media(max-width:1000px){main{padding:0 22px}.workspace{grid-template-columns:245px minmax(0,1fr);gap:16px}.exercise{padding:20px}.profile{width:280px}.key{width:30px;height:32px}.key-row{gap:3px}.input-label{flex-direction:column}.exercise-footer{align-items:flex-start;flex-direction:column}.exercise-footer>div{align-self:flex-end}.keyboard-caption{flex-direction:column}.metrics>div{padding-left:10px}.metrics strong{font-size:25px}.text-display{font-size:20px}}
@media(max-width:760px){.topbar{height:70px;padding:0 20px}.back span{font-size:9px}.brand{font-size:21px}.brand-icon{width:29px;height:29px}.topbar .quiet{font-size:9px;padding:9px}.intro{padding:35px 0 28px;gap:25px;align-items:stretch;flex-direction:column}h1{font-size:43px}.profile{width:100%;padding:17px}.profile .track{margin-top:15px}.tabs{gap:23px}.tabs button span{font-size:12px}.workspace{grid-template-columns:1fr}.curriculum{padding:18px}.curriculum #level-list{display:flex;overflow-x:auto;gap:8px;padding:3px 2px 8px;margin-top:15px}.module-label{display:none}.level{min-width:170px;width:170px;background:#222a22}.curriculum .compact{margin-bottom:0}.keyboard-panel{padding:17px 10px}.keyboard-panel .section-top{padding:0 7px}.key{width:7%;max-width:36px;font-size:11px}.key.wide{width:12%}.key.space{width:48%}.keyboard-caption{padding:0 8px}.stat-grid{grid-template-columns:1fr 1fr}.stats-bottom{grid-template-columns:1fr}.page-footer{flex-direction:column;gap:8px}.exercise-heading h2{font-size:22px}.eyebrow{font-size:9px}.result-actions{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.curriculum{min-width:0}@media(max-width:760px){.workspace{grid-template-columns:minmax(0,1fr)}}
.lesson-track i{transition:none}@media(max-width:760px){.key.space,.key.wide{max-width:none}}
/* Compact game layout, shared OLAP menu button. */
.topbar{position:relative;max-width:none;height:76px;padding:0 24px 0 120px;gap:16px}
.topbar h1{font-size:23px;line-height:1.2;letter-spacing:-.6px;margin:0}
.topbar .game-buttons{background:#fff;color:#0000ff;font-size:16px;font-weight:bold;padding:10px 20px;border-radius:5px;position:absolute;top:18px;left:20px;z-index:10}
.topbar #sound{margin-left:auto}
main{padding-top:14px;padding-bottom:30px}
.tabs{margin-bottom:20px}.tabs button span{margin-left:0}
.exercise{padding:24px}.targets{margin:16px 0}.typing-shell{margin-top:20px}
.keyboard-panel,.help-panel{padding:16px 20px}
summary{cursor:pointer;font-size:12px;color:var(--muted)}
summary:focus-visible{outline:2px solid var(--lime);outline-offset:5px}
summary::marker{color:var(--lime)}summary #next-key{float:right;font-size:11px;line-height:1.2}
.progress-summary{font-size:14px;color:var(--lime);margin:4px 0 20px}
#level-list{max-height:580px;overflow-y:auto;scrollbar-width:thin}
@media(max-width:760px){.topbar{padding-left:101px;padding-right:16px;gap:8px}.topbar h1{font-size:18px}.topbar .game-buttons{left:16px;padding:10px 14px}.tabs{gap:0;justify-content:space-between}.tabs button span{font-size:11px}.exercise{padding:18px}.exercise-heading h2{font-size:20px}#level-list{max-height:none}.keyboard-panel,.help-panel{padding:16px}.keyboard{margin-bottom:2px}}
.exercise-heading{flex-wrap:wrap}