@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');
:root{--bg:#10192b;--card:#19243a;--card2:#202d46;--line:#33415a;--text:#f3f4f2;--muted:#a9b2c6;--mint:#a5f3d1;--yellow:#ffdc8c;--pink:#f8b4c7}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:'DM Sans',sans-serif;min-height:100vh}.stars{position:fixed;inset:0;z-index:-1;background:radial-gradient(circle at 12% 15%,#ffffff18 1px,transparent 2px),radial-gradient(circle at 80% 25%,#ffffff12 1px,transparent 2px),radial-gradient(circle at 40% 72%,#ffffff10 1px,transparent 2px);background-size:190px 220px,270px 310px,340px 290px}.app{max-width:1200px;margin:auto;padding:0 32px}.top{height:88px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #ffffff1b}.brand{text-decoration:none;color:var(--mint);font:700 20px 'Space Grotesk';letter-spacing:.11em}.brand:first-letter{font-size:29px}.top-right{display:flex;gap:16px;align-items:center}.pill{color:#d5deeb;border:1px solid var(--line);border-radius:30px;padding:9px 16px;font-size:12px}.icon{border:1px solid var(--line);background:transparent;color:var(--mint);border-radius:50%;width:36px;height:36px;font-size:20px;cursor:pointer}.hero{padding:76px 0 78px;max-width:840px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.2em;color:var(--mint)}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:'Space Grotesk',sans-serif}h1{font-size:clamp(46px,6.8vw,82px);letter-spacing:-.065em;line-height:1.05;margin:20px 0 24px}h1 em{font-style:normal;color:var(--mint)}.hero p{font-size:17px;line-height:1.7;max-width:640px;color:var(--muted)}.hero-actions{display:flex;gap:22px;align-items:center;margin-top:30px}.hero-actions>span{font-size:12px;color:var(--muted)}button{font-family:inherit}.primary{background:var(--mint);color:#122639;border:0;padding:16px 22px;border-radius:12px;font-weight:700;font-size:15px;cursor:pointer;box-shadow:0 8px 30px #a5f3d11a}.primary span{margin-left:16px;font-size:20px}.primary:hover{transform:translateY(-2px)}.dashboard{background:#ffffff08;border:1px solid #ffffff16;border-radius:24px;padding:32px}.dashboard-head{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:25px}.dashboard h2,.how h2{font-size:34px;margin:7px 0 0;letter-spacing:-.04em}.toggle{display:flex;align-items:center;gap:12px;cursor:pointer;font-weight:700;font-size:13px}.toggle small{display:block;color:var(--muted);font-weight:400;margin-top:2px}.toggle input{position:absolute;opacity:0}.switch{width:43px;height:25px;border-radius:30px;background:#43506a;position:relative;transition:.2s;flex:none}.switch:after{content:'';position:absolute;width:17px;height:17px;background:white;border-radius:50%;top:4px;left:4px;transition:.2s}.toggle input:checked+.switch{background:var(--mint)}.toggle input:checked+.switch:after{transform:translateX(18px);background:#183044}.tracks{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.track{background:var(--card);border:1px solid var(--line);border-radius:18px;min-height:210px;padding:23px;text-align:left;color:var(--text);cursor:pointer;display:flex;flex-direction:column;align-items:flex-start;transition:.2s}.track:hover{border-color:var(--mint);transform:translateY(-3px);background:var(--card2)}.track .symbol{font-size:27px;background:#ffffff0d;border-radius:12px;width:52px;height:52px;display:grid;place-items:center;margin-bottom:20px}.track h3{font-size:20px;margin:0 0 5px}.track p{font-size:13px;color:var(--muted);line-height:1.5;margin:0 0 16px}.track .bottom{font-size:12px;color:var(--mint);margin-top:auto}.track.code{border-color:#f8b4c755}.track.code .bottom{color:var(--pink)}.arena{padding-top:40px}.arena-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;color:var(--muted);font-size:12px}.textbtn{border:0;background:transparent;color:var(--muted);cursor:pointer;font-size:13px}.textbtn:hover{color:var(--mint)}.arena-grid{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:18px}.game-panel,.score-panel{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:32px}.level-line{display:flex;align-items:center;gap:16px}.level-line>span{font-size:31px}.level-line h2{font-size:27px;margin:4px 0 0}.progress{height:7px;border-radius:8px;background:#35425a;margin:28px 0 42px;overflow:hidden}.progress span{height:100%;display:block;width:0;background:var(--mint);transition:width .3s}.prompt-caption{font-size:11px;font-weight:700;letter-spacing:.2em;color:var(--muted)}.prompt{font-family:'Space Grotesk',sans-serif;font-size:clamp(42px,7vw,82px);font-weight:700;letter-spacing:-.05em;line-height:1.2;margin:10px 0;min-height:100px;overflow-wrap:anywhere}.prompt .done{color:var(--mint)}.prompt .rest{color:#f3f4f2}.hint{color:var(--muted);font-size:14px;min-height:23px}.game-panel input{width:100%;background:#10192b;color:var(--text);font:500 22px 'Space Grotesk';padding:17px 20px;border:2px solid #4a5b75;border-radius:12px;outline:none}.game-panel input:focus{border-color:var(--mint)}.game-panel input.wrong{border-color:#ff889c;animation:shake .2s}.feedback{min-height:35px;font-size:13px;color:var(--muted);padding-top:13px}.feedback.good{color:var(--mint)}.feedback.bad{color:#ff9bae}.game-actions{display:flex;gap:12px;margin-top:14px}.secondary{background:#ffffff0a;color:var(--text);border:1px solid var(--line);border-radius:9px;padding:10px 14px;cursor:pointer;font-size:12px}.secondary:hover{border-color:var(--mint)}.score-panel{display:flex;flex-direction:column;gap:18px}.stat{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px}.stat span{font-size:11px;font-weight:700;letter-spacing:.13em;color:var(--muted)}.stat strong{font:700 26px 'Space Grotesk'}.stat i{font-size:15px;color:var(--yellow);font-style:normal}.tipbox{margin-top:auto;background:#a5f3d10d;border:1px solid #a5f3d12a;border-radius:16px;padding:18px}.tipbox>span{font-size:27px;color:var(--mint)}.tipbox h3{font-size:16px;margin:10px 0}.tipbox p{font-size:12px;color:var(--muted);line-height:1.55}.tipbox a{font-size:12px;color:var(--mint)}.how{display:grid;grid-template-columns:1fr 2fr;gap:36px;padding:85px 0 70px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.steps b{font:700 20px 'Space Grotesk';color:var(--mint)}.steps h3{font-size:17px;margin:20px 0 9px}.steps p{color:var(--muted);font-size:13px;line-height:1.6}footer{border-top:1px solid #ffffff1b;padding:25px 0 40px;display:flex;gap:20px;align-items:center;color:var(--muted);font-size:12px}footer button{background:none;border:0;color:var(--mint);cursor:pointer;font-size:12px}footer span{margin-left:auto}@keyframes shake{50%{transform:translateX(5px)}}@media(max-width:800px){.tracks{grid-template-columns:repeat(2,1fr)}.arena-grid{grid-template-columns:1fr}.score-panel{display:grid;grid-template-columns:repeat(3,1fr)}.tipbox{grid-column:1/-1}.how{grid-template-columns:1fr}.hero{padding:55px 0}.steps{gap:12px}}@media(max-width:570px){.app{padding:0 18px}.top{height:70px}.pill{display:none}.hero p{font-size:15px}.hero-actions{align-items:flex-start;flex-direction:column;gap:12px}.dashboard{padding:18px}.dashboard-head{align-items:flex-start;flex-direction:column}.tracks{grid-template-columns:1fr}.track{min-height:155px}.track .symbol{margin-bottom:12px}.game-panel,.score-panel{padding:20px}.score-panel{gap:10px}.stat{display:block}.stat strong{display:block;margin-top:7px}.steps{grid-template-columns:1fr}footer{flex-wrap:wrap}footer span{margin:0}}
/* Single-character practice and reference sheet */
.hero{padding:65px 0 55px}.hero p{max-width:610px}.dashboard{margin-bottom:60px}.practice-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.85fr);gap:18px}.practice-top{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px;margin-bottom:55px}.game-panel .prompt{font-size:clamp(85px,12vw,150px);min-height:150px;margin:0 0 20px;color:var(--mint)}.combo-caption{font-size:11px;font-weight:700;letter-spacing:.2em;color:var(--muted)}.combination{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:12px;min-height:54px}.combination kbd{font-size:19px;padding:10px 14px}.plus{color:var(--muted)}kbd{display:inline-block;background:#2b3b53;border:1px solid #53657c;border-bottom-width:3px;border-radius:7px;color:var(--text);padding:4px 7px;font:600 13px 'Space Grotesk',sans-serif;white-space:nowrap}.location{font-size:13px;color:var(--muted);margin:10px 0 28px}.sheet{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:25px;max-height:660px;overflow:auto}.sheet-head{display:flex;justify-content:space-between;align-items:center}.sheet-head h3{font-size:22px;margin:7px 0}.sheet-head>span{font-size:25px;color:var(--mint)}.sheet>p{font-size:12px;line-height:1.6;color:var(--muted);margin:8px 0 20px}.sheet h4{font-size:11px;letter-spacing:.16em;color:var(--mint);text-transform:uppercase;margin:24px 0 10px}.sheet-row{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid #ffffff14;padding:7px 9px;border-radius:7px}.sheet-row.active{background:#a5f3d11b}.sheet-row strong{font:700 22px 'Space Grotesk';min-width:35px}.sheet-row>span{display:flex;align-items:center;justify-content:flex-end;gap:4px;flex-wrap:wrap}.sheet-row kbd{font-size:11px;padding:3px 6px}.note{display:grid;grid-template-columns:1fr 2fr;gap:30px;padding:0 0 70px}.note h2{font-size:30px}.note>div{display:flex;gap:20px}.note p{color:var(--muted);font-size:14px;line-height:1.7;flex:1}.note strong{color:var(--mint);font-size:20px}footer a{color:var(--mint)}@media(max-width:800px){.practice-grid{grid-template-columns:1fr}.sheet{max-height:none}.note{grid-template-columns:1fr}.note>div{display:block}}@media(max-width:570px){.practice-top{margin-bottom:30px}.game-panel .prompt{min-height:120px}.dashboard{padding:16px}.sheet{padding:18px}}
.prompt.action{font-size:clamp(46px,6vw,78px)!important;letter-spacing:-.045em;display:flex;align-items:center;min-height:150px}.sheet-row:has(strong:first-child){align-items:center}.sheet-row strong{font-size:18px}.sheet-row span{max-width:75%}.sheet-row .plus{font-size:10px}.sheet-row kbd{font-size:10px}
/* App-first layout */
.app{max-width:1320px}.top{height:68px}.brand{font-size:17px;letter-spacing:-.025em;color:var(--text)}.brand:first-letter{font-size:17px}.dashboard{margin:22px 0 28px;padding:24px;background:transparent}.dashboard-head{margin-bottom:20px}.dashboard-head h1{font-size:28px;letter-spacing:-.045em;margin:0}.dashboard-head p{font-size:12px;color:var(--muted);margin:3px 0 0}.game-panel{min-height:560px}.practice-top{margin-bottom:34px}.game-panel .prompt{min-height:125px}.prompt.action{min-height:125px}.sheet{max-height:calc(100vh - 175px);min-height:560px}.sheet-head h3{font-size:19px}.sheet>p{margin:4px 0 14px}footer{padding-top:17px}@media(max-width:800px){.sheet{max-height:none;min-height:0}}@media(max-width:570px){.dashboard{padding:0}.game-panel{min-height:0}.top .pill{display:none}}
/* Physical keyboard map */
.keyboard-header{display:flex;justify-content:space-between;gap:12px;margin:32px 0 10px;font-size:10px;font-weight:700;letter-spacing:.14em;color:var(--muted)}.keyboard-header span:last-child{letter-spacing:0;font-weight:400}.keyboard-wrap{overflow-x:auto;padding-bottom:5px}.keyboard{min-width:520px;background:#10192b;border:1px solid #34445f;border-radius:14px;padding:10px}.keyboard-row{display:flex;gap:4px;margin-bottom:4px}.keyboard-row:last-child{margin-bottom:0}.map-key{flex:1;min-width:0;height:43px;background:#25334b;border:1px solid #42526b;border-bottom-width:3px;border-radius:6px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#e2e8ef;font:600 10px 'Space Grotesk',sans-serif;line-height:1.05;text-align:center}.map-key small{font-size:9px;color:var(--muted);margin-top:3px}.map-key.wide{flex:1.35}.map-key.space{flex:5}.map-key.selected{background:var(--mint);border-color:#d7ffe9;color:#112a31;box-shadow:0 0 0 2px #a5f3d155,0 0 18px #a5f3d144}.map-key.selected small{color:#345858}@media(max-width:570px){.keyboard{min-width:510px}.keyboard-header span:last-child{display:none}}
.toggles{display:flex;align-items:center;gap:22px;flex-wrap:wrap}.toggles .toggle{white-space:nowrap}@media(max-width:700px){.toggles{gap:14px}}