:root{
  --bg:#edf5ff;--bg2:#dfeaf9;--ink:#102033;--muted:#687a91;--blue:#0a84ff;--green:#2abb61;--red:#e94b42;--amber:#f6a51b;
  --glass:rgba(255,255,255,.44);--glass-strong:rgba(255,255,255,.68);--edge:rgba(255,255,255,.82);--stroke:rgba(65,92,126,.11);
  --shadow:0 22px 58px rgba(50,78,116,.15),0 3px 13px rgba(50,78,116,.08),inset 0 1px rgba(255,255,255,.8);
  --max:1180px;--key:38px;--gap:4px;
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Pretendard","Noto Sans KR","Segoe UI",sans-serif
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:
 radial-gradient(70vw 50vw at 0 0,rgba(50,177,255,.24),transparent 65%),
 radial-gradient(50vw 48vw at 100% 8%,rgba(139,98,255,.17),transparent 68%),
 linear-gradient(145deg,var(--bg),var(--bg2));min-height:100vh;padding-top:88px;-webkit-font-smoothing:antialiased}
body:before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;background:radial-gradient(circle at 66% 80%,rgba(73,223,185,.10),transparent 25%)}
a{text-decoration:none;color:inherit}button,input,textarea,select{font:inherit}.wrap{width:min(var(--max),calc(100% - 28px));margin:auto}
.glass{background:linear-gradient(135deg,rgba(255,255,255,.28),rgba(255,255,255,.06)),var(--glass);border:1px solid var(--edge);box-shadow:var(--shadow);backdrop-filter:blur(26px) saturate(175%);-webkit-backdrop-filter:blur(26px) saturate(175%)}
.site-header{position:fixed;z-index:100;top:12px;left:50%;transform:translateX(-50%);width:min(var(--max),calc(100% - 28px));height:64px;border-radius:22px;padding:0 12px 0 14px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px}.brand-mark{width:40px;height:40px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(145deg,#5edaff,#0a84ff 50%,#765fff);color:white;font-size:21px;font-weight:950;box-shadow:0 10px 24px rgba(10,132,255,.25),inset 0 1px rgba(255,255,255,.7)}
.brand-text{display:flex;flex-direction:column;line-height:1}.brand-text b{font-size:14px;letter-spacing:-.035em}.brand-text small{font-size:8px;color:var(--muted);letter-spacing:.18em;margin-top:4px;font-weight:850}
.site-nav{display:flex;align-items:center;gap:3px}.site-nav a{font-size:12px;color:var(--muted);font-weight:800;padding:10px 12px;border-radius:12px}.site-nav a:hover{color:var(--ink);background:rgba(255,255,255,.3)}
.btn{display:inline-flex;align-items:center;justify-content:center;line-height:1;min-height:48px;padding:0 18px;border-radius:16px;border:0;font-weight:850;font-size:13px;cursor:pointer;vertical-align:middle}
.btn-primary{color:#fff;background:linear-gradient(135deg,#168fff,#066fe8 60%,#6d5dff);box-shadow:0 13px 30px rgba(10,132,255,.25)}
.btn-secondary{background:rgba(255,255,255,.48);border:1px solid var(--edge);color:var(--ink)}
.ad-slot{border:1px dashed rgba(91,111,139,.32);border-radius:18px;background:rgba(255,255,255,.20);color:#8491a3;display:flex;align-items:center;justify-content:center;gap:8px;text-align:center}
.ad-slot b{font-size:8px;letter-spacing:.15em}.ad-slot small{font-size:9px}

/* home */
.home{padding:54px 0 22px}.hero{display:grid;grid-template-columns:1.02fr .98fr;gap:42px;align-items:center;min-height:520px}.hero h1{font-size:clamp(54px,6.2vw,82px);line-height:.99;letter-spacing:-.07em;margin:16px 0 20px}.gradient{background:linear-gradient(100deg,#087cff,#32b8ff 42%,#815fff 82%);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{font-size:17px;line-height:1.75;color:var(--muted);max-width:650px}.badge{display:inline-flex;align-items:center;min-height:34px;padding:0 12px;border-radius:999px;font-size:10px;color:var(--muted);font-weight:800}.home-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.preview{border-radius:32px;padding:22px;min-height:360px;position:relative;overflow:hidden;display:flex;align-items:center}.preview:before{content:"";position:absolute;width:260px;height:240px;border-radius:48% 52% 58% 42%;right:-65px;top:-60px;background:radial-gradient(circle at 30% 20%,rgba(255,255,255,.95),transparent 18%),linear-gradient(145deg,rgba(40,169,255,.7),rgba(133,92,255,.48));box-shadow:inset 18px 18px 45px rgba(255,255,255,.32)}.preview-card{position:relative;width:100%;padding:20px;border-radius:24px;background:rgba(255,255,255,.46);border:1px solid var(--edge);box-shadow:0 20px 50px rgba(48,78,117,.14)}.preview-line{font-size:25px;font-weight:850;line-height:1.5;margin:22px 0}.ok{color:var(--green)}.bad{color:var(--red)}.preview-input{height:44px;border-radius:14px;background:rgba(255,255,255,.58);border:1px solid var(--edge)}.preview-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:8px}.preview-stat{border-radius:14px;padding:10px;background:rgba(255,255,255,.38);border:1px solid var(--edge)}.preview-stat b{display:block;font-size:20px}.preview-stat small{font-size:8px;color:var(--muted)}
.home-ad{height:88px;margin:12px auto 60px;width:min(970px,calc(100% - 28px))}
.section{padding:28px 0 68px}.section-head{text-align:center;max-width:760px;margin:0 auto 28px}.section-head h2{font-size:42px;letter-spacing:-.055em;margin:0 0 10px}.section-head p{color:var(--muted);line-height:1.7}.feature-grid,.game-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.feature-card,.game-card{border-radius:24px;padding:21px;min-height:178px}.feature-card b,.game-card b{display:block;font-size:18px;margin:40px 0 8px}.feature-card p,.game-card p{font-size:12px;line-height:1.65;color:var(--muted)}.game-card{cursor:pointer;transition:.2s}.game-card:hover{transform:translateY(-3px)}
.footer{padding:24px 0 38px}.footer-inner{width:min(var(--max),calc(100% - 28px));margin:auto;border-radius:22px;padding:20px;display:flex;justify-content:space-between;align-items:center;gap:18px}.footer p{font-size:9px;color:var(--muted);margin:5px 0 0}.footer-links{display:flex;gap:13px;flex-wrap:wrap}.footer-links a{font-size:10px;color:var(--muted)}

/* practice */
.practice-page{height:100vh;overflow:hidden}.practice-page body{overflow:hidden}.practice{height:calc(100vh - 88px);padding:6px 0 9px}.practice-grid{height:100%;display:grid;grid-template-rows:auto auto minmax(0,1fr) auto;gap:7px}.practice-title{display:flex;justify-content:space-between;align-items:end;gap:14px;padding:0 2px}.practice-title h1{font-size:28px;letter-spacing:-.05em;margin:0}.practice-title p{font-size:9px;color:var(--muted);max-width:540px;margin:0}.controls{min-height:44px;border-radius:18px;padding:6px;display:flex;align-items:center;gap:6px}.tabs{display:flex;gap:3px;padding:3px;border-radius:13px;background:rgba(78,102,132,.08)}.tab{border:0;background:transparent;border-radius:10px;min-height:31px;padding:0 12px;font-size:10px;color:var(--muted);font-weight:850;cursor:pointer}.tab.active{background:rgba(255,255,255,.80);color:var(--ink);box-shadow:0 3px 10px rgba(47,73,108,.10)}.spacer{flex:1}.select,.mini-btn{height:33px;border-radius:11px;font-size:10px}.select{border:1px solid var(--edge);background:rgba(255,255,255,.62);padding:0 9px;color:var(--ink)}.mini-btn{border:0;padding:0 11px;background:#117ef1;color:#fff;font-weight:850;cursor:pointer}.workarea{min-height:0;display:grid;grid-template-columns:minmax(0,1fr) 248px;gap:7px}.trainer{min-height:0;border-radius:24px;padding:12px 15px;display:grid;grid-template-rows:auto minmax(0,1fr) auto auto;gap:5px}.trainer-head{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;font-size:9px;color:var(--muted)}.trainer-head b{color:var(--blue);font-size:9px;letter-spacing:.09em}.progress{height:5px;border-radius:99px;background:rgba(85,105,132,.12);overflow:hidden}.progress i{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--blue),#53c8ff,#805fff);border-radius:99px;transition:width .2s}.target-zone{min-height:0;display:flex;align-items:center;justify-content:center}.position-stage{width:100%;display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:8px;align-items:center}.position-box{height:90px;border-radius:18px;border:1px solid var(--edge);background:rgba(255,255,255,.31);display:flex;flex-direction:column;align-items:center;justify-content:center;transition:.12s}.position-box.center{height:118px;background:linear-gradient(145deg,rgba(255,255,255,.72),rgba(94,181,255,.13));box-shadow:0 12px 32px rgba(8,124,255,.11)}.position-box span{font-size:8px;color:var(--muted);font-weight:850}.position-box strong{font-size:31px;margin-top:6px}.position-box.center strong{font-size:54px}.position-box.center.result-correct{background:rgba(42,187,97,.20);border-color:rgba(42,187,97,.48);box-shadow:0 0 0 4px rgba(42,187,97,.08)}.position-box.center.result-wrong{background:rgba(233,75,66,.18);border-color:rgba(233,75,66,.45);box-shadow:0 0 0 4px rgba(233,75,66,.07)}.typed-result{font-size:31px!important}.typed-result.correct{color:var(--green)}.typed-result.wrong{color:var(--red)}
.normal-target{font-size:34px;line-height:1.42;font-weight:850;letter-spacing:-.035em;text-align:center;max-height:155px;overflow:auto;padding:3px 5px}.normal-target.long{font-size:15px;line-height:1.55;text-align:left}.char.good{color:var(--green)}.char.wrong{color:var(--red);background:rgba(233,75,66,.08);border-radius:5px}.char.now{background:rgba(10,132,255,.12);border-radius:5px}
.input-row{display:grid;grid-template-columns:1fr auto;gap:6px}.typing{height:40px;resize:none;border:1px solid var(--edge);border-radius:13px;background:rgba(255,255,255,.48);outline:none;padding:8px 11px;color:var(--ink);font-size:13px;line-height:22px}.typing:focus{border-color:rgba(10,132,255,.36);box-shadow:0 0 0 4px rgba(10,132,255,.08)}.submit-btn{height:40px;border:0;border-radius:13px;background:rgba(16,32,51,.90);color:#fff;font-size:10px;font-weight:850;padding:0 13px;cursor:pointer}.feedback{min-height:12px;font-size:8px;color:var(--muted)}.feedback.error{color:var(--red)}.feedback.success{color:#1f984b}
.stats{min-height:0;display:grid;grid-template-columns:1fr 1fr;grid-auto-rows:min-content;gap:6px}.score{grid-column:1/-1;border-radius:18px;padding:11px 13px}.score small,.stat small{font-size:7px;color:var(--muted);font-weight:850}.score strong{display:block;font-size:32px;line-height:1;margin:4px 0 7px}.scorebar{height:5px;background:rgba(84,104,130,.12);border-radius:99px;overflow:hidden}.scorebar i{display:block;height:100%;background:linear-gradient(90deg,var(--red),var(--amber) 45%,var(--green));transform-origin:left;transition:transform .2s}.stat{border-radius:16px;padding:9px}.stat strong{display:block;font-size:18px;margin-top:3px}.hint{grid-column:1/-1;border-radius:16px;padding:9px;font-size:7.5px;line-height:1.42;color:var(--muted)}.practice-ad{grid-column:1/-1;min-height:38px;border-radius:14px}
.keyboard-panel{border-radius:21px;padding:7px 10px 6px;overflow:hidden}.keyboard-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:5px}.keyboard-head b{font-size:10px}.keyboard-head span{font-size:7px;color:var(--muted)}.keyboard{display:flex;flex-direction:column;gap:var(--gap);align-items:center}.keyrow{display:flex;gap:var(--gap);justify-content:center;align-items:center}.key{width:var(--key);height:var(--key);flex:0 0 var(--key);border-radius:7px;border:1px solid var(--edge);background:rgba(255,255,255,.42);position:relative;display:flex;align-items:center;justify-content:center;font-size:9px;font-weight:850;box-shadow:0 2px 6px rgba(40,70,105,.06),inset 0 1px rgba(255,255,255,.84)}.key.w15{width:calc(var(--key)*1.5);flex-basis:calc(var(--key)*1.5)}.key.w18{width:calc(var(--key)*1.8);flex-basis:calc(var(--key)*1.8)}.key.w2{width:calc(var(--key)*2);flex-basis:calc(var(--key)*2)}.key.w23{width:calc(var(--key)*2.3);flex-basis:calc(var(--key)*2.3)}.key.space{width:calc(var(--key)*6);flex-basis:calc(var(--key)*6)}.key .en{position:absolute;right:3px;top:2px;font-size:5px;color:#7a889a}.key .shiftko{position:absolute;left:3px;top:2px;font-size:5px;color:#7a889a}.key .finger{position:absolute;left:3px;bottom:2px;font-size:4.4px;color:#8a96a6}.key.next{background:rgba(10,132,255,.22);border-color:rgba(10,132,255,.45);box-shadow:0 0 0 2px rgba(10,132,255,.08)}.key.pressed{background:rgba(42,187,97,.28);border-color:rgba(42,187,97,.46);transform:translateY(1px)}.legend{display:flex;justify-content:center;gap:5px;flex-wrap:wrap;margin-top:5px;padding-top:4px;border-top:1px solid var(--stroke)}.legend span{font-size:5.5px;color:var(--muted)}
.mobile-help{display:none}

/* games */
.games-page{padding:28px 0 60px}.games-title{text-align:center;margin:18px 0 26px}.games-title h1{font-size:48px;letter-spacing:-.06em;margin:0 0 8px}.games-title p{color:var(--muted)}.games-nav{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}.game-select{border:0;text-align:left;cursor:pointer}.game-select.active{outline:2px solid rgba(10,132,255,.32);background:rgba(255,255,255,.62)}.game-stage{border-radius:28px;padding:24px;min-height:360px;display:grid;grid-template-rows:auto 1fr auto;gap:16px}.game-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px}.game-toolbar h2{margin:0;font-size:22px}.game-body{display:grid;place-items:center;text-align:center;position:relative;overflow:hidden;border-radius:22px;background:rgba(255,255,255,.20);border:1px solid rgba(255,255,255,.48);min-height:230px}.game-target{font-size:54px;font-weight:900;letter-spacing:-.055em}.game-sub{font-size:11px;color:var(--muted);margin-top:9px}.game-input{width:min(560px,90%);height:46px;border-radius:14px;border:1px solid var(--edge);background:rgba(255,255,255,.65);padding:0 14px;text-align:center;font-size:18px;outline:none;margin-top:15px}.game-stats{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}.game-stat{min-width:95px;border-radius:14px;padding:9px 12px;background:rgba(255,255,255,.32);border:1px solid var(--edge)}.game-stat b{display:block;font-size:19px}.game-stat small{font-size:7px;color:var(--muted)}.fall-word{position:absolute;top:0;font-size:34px;font-weight:900;animation:fall linear forwards}@keyframes fall{to{transform:translateY(210px)}}.game-message{font-size:10px;color:var(--muted)}
.games-ad{height:80px;margin-top:14px}

/* docs */
.doc{padding:36px 0 60px}.doc article{max-width:900px;margin:auto;border-radius:28px;padding:36px}.doc h1{font-size:44px;letter-spacing:-.05em}.doc h2{margin-top:28px;font-size:21px}.doc p,.doc li{font-size:13px;line-height:1.8;color:var(--muted)}.doc a{color:var(--blue);text-decoration:underline}

@media(max-width:900px){
 body{padding-top:76px}.site-header{top:7px;height:58px}.site-nav a:nth-child(n+3){display:none}
 .hero{grid-template-columns:1fr}.feature-grid,.game-grid{grid-template-columns:1fr 1fr}
 .practice-page{height:auto;overflow:auto}.practice{height:auto;padding-bottom:26px}.practice-grid{display:block}.practice-title{margin:12px 0 8px}.practice-title{display:block}.practice-title p{margin-top:5px}.controls{flex-wrap:wrap;margin-bottom:7px}.tabs{width:100%}.tab{flex:1}.spacer{display:none}.workarea{grid-template-columns:1fr}.stats{grid-template-columns:repeat(4,1fr);margin-top:7px}.score{grid-column:span 2}.hint,.practice-ad{grid-column:span 2}.keyboard-panel{margin-top:7px}.mobile-help{display:block;font-size:8px;color:var(--muted);text-align:center;margin-top:5px}
 .games-nav{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
 :root{--key:22px;--gap:2px}.wrap{width:calc(100% - 14px)}.brand-text small{display:none}.site-nav a{font-size:10px;padding:8px}.site-nav a:nth-child(n+2){display:none}
 .home{padding-top:26px}.hero h1{font-size:48px}.hero p{font-size:14px}.home-actions .btn{width:100%}.feature-grid,.game-grid{grid-template-columns:1fr}.preview{min-height:300px;padding:14px}.section-head h2{font-size:34px}
 .position-stage{gap:5px}.position-box{height:76px}.position-box.center{height:98px}.position-box strong{font-size:24px}.position-box.center strong{font-size:42px}.normal-target{font-size:28px}.normal-target.long{font-size:14px}.stats{grid-template-columns:1fr 1fr}.score,.hint,.practice-ad{grid-column:1/-1}.typing{height:46px}.submit-btn{height:46px}
 .keyboard-panel{padding-inline:4px}.key{border-radius:5px;font-size:6px}.key .en,.key .shiftko,.key .finger{display:none}.legend{gap:3px}.legend span{font-size:5px}
 .games-title h1{font-size:38px}.games-nav{grid-template-columns:1fr}.game-stage{padding:14px}.game-target{font-size:42px}.doc article{padding:23px}.doc h1{font-size:36px}
}
@media(min-width:901px) and (max-height:780px){
 body{padding-top:72px}.site-header{top:6px;height:56px}.practice{height:calc(100vh - 72px);padding-top:3px}.practice-title h1{font-size:23px}.practice-title p{display:none}.controls{min-height:39px;padding:4px}.tab{min-height:28px}.trainer{padding:9px 12px}.position-box{height:68px}.position-box.center{height:88px}.position-box strong{font-size:24px}.position-box.center strong{font-size:40px}.normal-target{font-size:27px;max-height:110px}.normal-target.long{font-size:13px;line-height:1.45}.typing,.submit-btn{height:35px}.score{padding:8px 10px}.score strong{font-size:27px}.stat{padding:7px}.stat strong{font-size:16px}.hint{padding:6px;font-size:6.8px}.practice-ad{min-height:28px}.keyboard-panel{padding-top:5px}:root{--key:31px;--gap:3px}.legend{margin-top:3px;padding-top:2px}.legend span{font-size:4.8px}
}

/* ===== v6 larger practice workspace ===== */
@media(min-width:901px){
 .practice{padding:10px 0 12px}
 .practice-grid{gap:10px}
 .practice-title{min-height:43px}.practice-title h1{font-size:34px}.practice-title p{font-size:11px}
 .controls{min-height:50px;padding:7px 8px}.tab{min-height:35px;font-size:11px;padding:0 15px}.select,.mini-btn{height:37px;font-size:11px}
 .workarea{grid-template-columns:minmax(0,1fr) 285px;gap:10px}
 .trainer{border-radius:27px;padding:16px 19px;gap:8px}.trainer-head{font-size:10px}.trainer-head b{font-size:10px}
 .position-box{height:112px}.position-box.center{height:148px}.position-box strong{font-size:38px}.position-box.center strong{font-size:66px}
 .normal-target{font-size:40px;max-height:190px;line-height:1.48}.normal-target.long{font-size:17px;line-height:1.6;max-height:190px}
 .typing{height:49px;padding:11px 14px;font-size:16px}.submit-btn{height:49px;font-size:11px;padding:0 16px}.feedback{font-size:9px;min-height:14px}
 .score{padding:14px 16px}.score small,.stat small{font-size:8px}.score strong{font-size:40px}.stat{padding:11px}.stat strong{font-size:21px}.hint{font-size:8.5px;padding:10px}
 .practice-ad{min-height:46px}
 .keyboard-panel{padding:10px 12px 8px}.keyboard-head{margin-bottom:7px}.keyboard-head b{font-size:12px}.keyboard-head span{font-size:8px}
 :root{--key:37px;--gap:4px}
 .key{border-radius:8px;font-size:9px}.key .en,.key .shiftko{font-size:5.5px}.key .finger{font-size:4.8px}
 .legend{margin-top:7px;padding-top:5px;gap:7px}.legend span{font-size:6.2px}
}
@media(min-width:901px) and (max-height:790px){
 body{padding-top:70px}.site-header{top:6px;height:55px}
 .practice{height:calc(100vh - 70px);padding:5px 0 7px}.practice-grid{gap:7px}
 .practice-title{min-height:31px}.practice-title h1{font-size:28px}.practice-title p{font-size:9px}
 .controls{min-height:43px;padding:5px 7px}.tab{min-height:31px}.select,.mini-btn{height:33px}
 .trainer{padding:11px 15px}.position-box{height:82px}.position-box.center{height:108px}.position-box strong{font-size:30px}.position-box.center strong{font-size:52px}
 .normal-target{font-size:33px;max-height:135px}.normal-target.long{font-size:14px;max-height:135px}
 .typing,.submit-btn{height:42px}.score{padding:9px 12px}.score strong{font-size:31px}.stat{padding:8px}.stat strong{font-size:18px}.hint{padding:7px;font-size:7.3px}.practice-ad{min-height:31px}
 .keyboard-panel{padding:7px 10px 5px}:root{--key:34px;--gap:3px}.legend{margin-top:4px;padding-top:3px}.legend span{font-size:5.2px}
}

/* ===== v6 arcade games ===== */
.arcade-shell{padding:24px 0 58px}.arcade-hero{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:10px 0 18px}.arcade-hero h1{font-size:48px;letter-spacing:-.06em;margin:0}.arcade-hero p{margin:7px 0 0;color:var(--muted)}
.arcade-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:12px}
.arcade-tab{border:1px solid var(--edge);border-radius:20px;padding:13px;cursor:pointer;text-align:left;display:grid;grid-template-columns:58px 1fr;gap:10px;align-items:center;color:var(--ink)}
.arcade-tab img{width:58px;height:58px;object-fit:contain}.arcade-tab b{display:block;font-size:14px}.arcade-tab small{display:block;font-size:8px;color:var(--muted);margin-top:4px}.arcade-tab.active{outline:3px solid rgba(10,132,255,.18);border-color:rgba(10,132,255,.34);transform:translateY(-2px)}
.arcade{border-radius:30px;padding:14px;position:relative;overflow:hidden}.scene{height:430px;border-radius:24px;position:relative;overflow:hidden;background:linear-gradient(#73d9ff,#dff7ff 55%,#92d574 55%,#4caf68);border:1px solid rgba(255,255,255,.7)}
.scene.space{background:radial-gradient(circle at 70% 20%,rgba(131,99,255,.45),transparent 23%),radial-gradient(circle at 22% 30%,rgba(30,181,255,.25),transparent 25%),linear-gradient(#091329,#162850 55%,#0a1732)}
.scene.defense{background:linear-gradient(#8ae0ff,#e5fbff 55%,#80cb73 55%,#4d9b5e)}
.scene.island{background:url("assets/island.svg") center/cover no-repeat}
.scene-overlay{position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,rgba(255,255,255,.08),transparent 35%,rgba(2,24,54,.08))}
.hud{position:absolute;z-index:20;top:12px;left:12px;right:12px;display:flex;justify-content:space-between;gap:8px;pointer-events:none}.hud-group{display:flex;gap:6px}.hud-pill{min-width:78px;padding:8px 11px;border-radius:14px;background:rgba(255,255,255,.70);border:1px solid rgba(255,255,255,.85);box-shadow:0 7px 20px rgba(20,55,90,.12);backdrop-filter:blur(12px);font-size:8px;color:#496078}.hud-pill b{display:block;font-size:17px;color:#14263c;margin-top:1px}
.game-word-card{position:absolute;z-index:22;left:50%;top:76px;transform:translateX(-50%);min-width:270px;padding:12px 18px;border-radius:18px;background:rgba(255,255,255,.84);border:1px solid #fff;box-shadow:0 15px 38px rgba(25,60,100,.15);text-align:center}.game-word-card small{font-size:8px;color:#6f7e90}.game-word-card strong{display:block;font-size:30px;letter-spacing:-.045em;margin:3px 0}.combo-label{font-size:9px;font-weight:900;color:#6e57e8}
.arcade-input-wrap{position:absolute;z-index:24;bottom:15px;left:50%;transform:translateX(-50%);width:min(620px,calc(100% - 30px));display:flex;gap:7px}.arcade-input{flex:1;height:48px;border:1px solid rgba(255,255,255,.9);background:rgba(255,255,255,.90);border-radius:16px;padding:0 15px;font-size:16px;outline:none;box-shadow:0 12px 30px rgba(23,56,94,.14)}.arcade-go{height:48px;border:0;border-radius:16px;padding:0 18px;color:#fff;background:#127df0;font-weight:900;cursor:pointer}
.mascot{position:absolute;z-index:12;width:105px;height:118px;object-fit:contain;filter:drop-shadow(0 14px 12px rgba(25,55,82,.15));transition:left .35s cubic-bezier(.2,.8,.2,1),bottom .3s}
.runner-track{position:absolute;left:0;right:0;bottom:68px;height:70px;background:linear-gradient(transparent 0 35%,rgba(39,89,105,.18) 36% 38%,transparent 39%),repeating-linear-gradient(90deg,transparent 0 70px,rgba(255,255,255,.28) 70px 74px)}
.star{position:absolute;font-size:28px;filter:drop-shadow(0 5px 5px rgba(255,198,34,.25));animation:floatStar 2.4s ease-in-out infinite alternate}@keyframes floatStar{to{transform:translateY(-10px) rotate(12deg)}}
.speed-lines{position:absolute;inset:0;background:repeating-linear-gradient(100deg,transparent 0 85px,rgba(255,255,255,.15) 86px 89px);transform:translateX(20%);opacity:0;transition:.2s}.scene.boost .speed-lines{opacity:1;animation:speed .45s linear infinite}@keyframes speed{to{transform:translateX(-10%)}}
.castle{position:absolute;left:18px;bottom:58px;width:165px}.monster{position:absolute;z-index:10;width:86px;height:76px;object-fit:contain;transition:left .35s linear}.monster-label{position:absolute;z-index:14;padding:5px 9px;border-radius:10px;background:#fff;border:1px solid rgba(255,255,255,.9);font-size:11px;font-weight:900;transform:translate(-50%,-100%);white-space:nowrap;box-shadow:0 5px 15px rgba(30,60,90,.12)}
.laser{position:absolute;z-index:16;height:5px;border-radius:99px;background:linear-gradient(90deg,#fff,#58e9ff,#1488ff);transform-origin:left center;animation:laser .25s ease-out forwards}@keyframes laser{from{transform:scaleX(.05);opacity:.2}to{transform:scaleX(1);opacity:0}}
.rocket{position:absolute;z-index:10;width:95px;left:50%;transform:translateX(-50%);bottom:58px;transition:bottom .45s cubic-bezier(.2,.8,.2,1);filter:drop-shadow(0 16px 14px rgba(0,0,0,.25))}.planet{position:absolute;border-radius:50%;box-shadow:inset -18px -20px 30px rgba(0,0,0,.14)}.planet.p1{width:85px;height:85px;background:linear-gradient(145deg,#ffd66f,#ff7a79);left:9%;top:26%}.planet.p2{width:56px;height:56px;background:linear-gradient(145deg,#6ee6d5,#2e91ff);right:13%;top:45%}.meteor{position:absolute;width:42px;height:26px;border-radius:58% 42% 50% 50%;background:linear-gradient(145deg,#a89088,#574c5f);transform:rotate(-25deg);opacity:.75}
.treasure{position:absolute;width:92px;right:9%;bottom:74px}.island-mascot{bottom:65px;left:8%}.route-dot{position:absolute;width:14px;height:14px;border-radius:50%;background:#fff;border:4px solid #0a84ff;box-shadow:0 4px 10px rgba(0,0,0,.12)}
.particle{position:absolute;z-index:40;width:8px;height:8px;border-radius:50%;pointer-events:none;animation:particle .65s ease-out forwards}@keyframes particle{to{transform:translate(var(--dx),var(--dy)) scale(.1);opacity:0}}
.flash{animation:flash .22s ease}@keyframes flash{50%{filter:brightness(1.35)}}
.shake{animation:arcadeShake .22s ease}@keyframes arcadeShake{25%{transform:translateX(-5px)}50%{transform:translateX(5px)}75%{transform:translateX(-2px)}}
.arcade-bottom{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:9px 4px 0}.arcade-help{font-size:9px;color:var(--muted)}.arcade-buttons{display:flex;gap:6px}.arcade-btn{height:36px;border:0;border-radius:12px;padding:0 12px;font-size:10px;font-weight:850;cursor:pointer;background:rgba(255,255,255,.58);color:var(--ink)}.arcade-btn.primary{background:#117ef1;color:#fff}
.arcade-ad{height:80px;margin-top:13px}
@media(max-width:760px){.arcade-tabs{grid-template-columns:1fr 1fr}.scene{height:500px}.arcade-hero{display:block}.arcade-hero h1{font-size:39px}.game-word-card{top:72px;min-width:220px}.game-word-card strong{font-size:26px}.mascot{width:88px}.castle{width:130px}.arcade-input-wrap{bottom:12px}.arcade-tab{grid-template-columns:46px 1fr}.arcade-tab img{width:46px;height:46px}}

.score-number-row{display:flex;align-items:center;gap:9px;min-height:43px}
.score-number-row>strong{margin:0!important}
.score-delta{font-size:14px;font-weight:950;opacity:0;transform:translateY(4px) scale(.85);transition:.18s}
.score-delta.show{opacity:1;transform:none}
.score-delta.plus{color:var(--green);animation:scoreUp .45s ease}
.score-delta.minus{color:var(--red);animation:scoreDown .35s ease}
@keyframes scoreUp{40%{transform:translateY(-6px) scale(1.14)}}
@keyframes scoreDown{40%{transform:translateY(5px) scale(1.08)}}

/* ===== v7 scoring + larger keyboard ===== */
@media(min-width:901px){
 .keyboard-panel{padding:10px 14px 8px}
 :root{--key:46px;--gap:4px}
 .key{font-size:11px;border-radius:9px}.key .en,.key .shiftko{font-size:6.5px}.key .finger{font-size:5.5px;bottom:3px}
 .keyboard-head b{font-size:13px}.keyboard-head span{font-size:8.5px}
 .legend span{font-size:7px}
}
@media(min-width:901px) and (max-height:790px){
 body{padding-top:66px}.site-header{top:5px;height:52px}
 .practice{height:calc(100vh - 66px);padding:3px 0 5px}.practice-grid{gap:5px}
 .practice-title{min-height:27px}.practice-title h1{font-size:27px}.practice-title p{font-size:8.5px}
 .controls{min-height:39px;padding:4px 6px}.tab{min-height:29px}.select,.mini-btn{height:31px}
 .trainer{padding:9px 13px;gap:5px}.position-box{height:76px}.position-box.center{height:100px}.position-box strong{font-size:29px}.position-box.center strong{font-size:48px}
 .normal-target{font-size:31px;max-height:116px}.normal-target.long{font-size:13.5px;max-height:116px;line-height:1.44}
 .typing,.submit-btn{height:39px}.feedback{min-height:11px}.score{padding:7px 10px}.score-number-row{min-height:31px}.score strong{font-size:29px}.stat{padding:6px 8px}.stat strong{font-size:17px}.hint{padding:5px 7px;font-size:6.8px;line-height:1.32}.practice-ad{min-height:25px}
 .keyboard-panel{padding:6px 10px 5px}:root{--key:44px;--gap:3px}.key{font-size:11px}.key .en,.key .shiftko{font-size:6.5px}.key .finger{font-size:6px}.keyboard-head{margin-bottom:4px}.keyboard-head b{font-size:11px}.keyboard-head span{font-size:7px}.legend{margin-top:3px;padding-top:2px;gap:5px}.legend span{font-size:5.8px}
}

/* ===== v8 practice refinements ===== */
.score{position:relative;text-align:center}
.score>small{display:block;text-align:center;margin-bottom:2px}
.score-number-row{position:relative;justify-content:center;width:100%}
.score-number-row>strong{width:100%;text-align:center}
.score-delta{position:absolute;left:calc(50% + 38px);top:50%;transform:translateY(-50%) scale(.85)}
.score-delta.show{transform:translateY(-50%) scale(1)}
.normal-target.long{font-size:20px!important;line-height:1.58!important;max-height:190px!important;overflow:auto!important;padding:7px 9px!important}
.result-modal{position:fixed;z-index:500;inset:0;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(10,25,47,.24);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);opacity:0;visibility:hidden;transition:.22s}
.result-modal.open{opacity:1;visibility:visible}
.result-card{width:min(470px,100%);border-radius:30px;padding:26px;text-align:center;transform:translateY(16px) scale(.97);transition:.25s cubic-bezier(.2,.8,.2,1)}
.result-modal.open .result-card{transform:none}
.result-icon{width:62px;height:62px;border-radius:21px;margin:0 auto 12px;display:grid;place-items:center;font-size:30px;font-weight:950;color:white;background:linear-gradient(145deg,#44d779,#1faf55);box-shadow:0 14px 30px rgba(31,175,85,.25),inset 0 1px rgba(255,255,255,.65)}
.result-card h2{font-size:38px;letter-spacing:-.055em;margin:4px 0}.result-card>p{font-size:11px;color:var(--muted);margin:0 0 18px}
.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.result-grid>div{border-radius:18px;padding:14px 10px;background:rgba(255,255,255,.38);border:1px solid var(--edge)}
.result-grid small{display:block;font-size:8px;color:var(--muted);font-weight:850}.result-grid strong{display:block;font-size:28px;margin-top:5px}.result-grid em{font-size:8px;font-style:normal;margin-left:3px;color:var(--muted)}
.result-actions{display:grid;grid-template-columns:1fr 1.3fr;gap:8px;margin-top:16px}.result-btn{height:46px;border:0;border-radius:15px;font-size:12px;font-weight:900;cursor:pointer}.result-btn.secondary{background:rgba(255,255,255,.48);border:1px solid var(--edge);color:var(--ink)}.result-btn.primary{background:linear-gradient(135deg,#168fff,#066fe8 62%,#725fff);color:white;box-shadow:0 12px 24px rgba(10,132,255,.22)}
@media(min-width:901px) and (max-height:790px){.normal-target.long{font-size:17.5px!important;line-height:1.48!important;max-height:142px!important}.result-card{padding:22px}.result-icon{width:54px;height:54px}.result-card h2{font-size:33px}.result-grid>div{padding:11px 8px}.result-grid strong{font-size:24px}}
@media(max-width:560px){.normal-target.long{font-size:16.5px!important;line-height:1.55!important;max-height:260px!important}.result-card{padding:20px;border-radius:24px}.result-card h2{font-size:32px}.result-grid strong{font-size:24px}}
/* v8 final long-text readability */
.normal-target.long{font-size:22px!important;line-height:1.55!important}
@media(min-width:901px) and (max-height:790px){.normal-target.long{font-size:20px!important;line-height:1.48!important;max-height:142px!important}}
@media(max-width:560px){.normal-target.long{font-size:17.5px!important;line-height:1.55!important;max-height:260px!important}}

/* v9 brand logo */
.brand-mark.brand-logo{padding:0;background:transparent;box-shadow:none;overflow:hidden}.brand-mark.brand-logo img{width:100%;height:100%;display:block}
/* v9 position layout and neon current key */
.position-box.center{position:relative;border-color:rgba(45,238,123,.58)!important;box-shadow:0 0 0 3px rgba(45,238,123,.10),0 0 24px rgba(45,238,123,.35),0 0 52px rgba(45,238,123,.16),inset 0 1px rgba(255,255,255,.92)!important;animation:currentGreenGlow 1.8s ease-in-out infinite alternate}
.position-box.center:before{content:"";position:absolute;inset:9px;border-radius:15px;background:radial-gradient(circle,rgba(67,255,145,.18),transparent 70%);pointer-events:none}
@keyframes currentGreenGlow{to{box-shadow:0 0 0 4px rgba(45,238,123,.12),0 0 32px rgba(45,238,123,.48),0 0 70px rgba(45,238,123,.22),inset 0 1px rgba(255,255,255,.95)}}
.position-box.center.result-wrong{animation:none;border-color:rgba(233,75,66,.55)!important;box-shadow:0 0 0 4px rgba(233,75,66,.09),0 0 28px rgba(233,75,66,.30)!important}
.position-box.center.result-correct{animation:none;border-color:rgba(42,187,97,.72)!important;box-shadow:0 0 0 4px rgba(42,187,97,.10),0 0 36px rgba(42,187,97,.52)!important}
/* score card: label top, number true center */
.score{position:relative;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;min-height:118px;padding:12px 15px!important}.score-label{position:absolute;top:10px;left:0;right:0;font-size:8px;color:var(--muted);font-weight:850}.score-center{display:flex;align-items:baseline;justify-content:center;position:relative;width:100%;margin-top:5px}.score-center>strong{font-size:42px!important;line-height:1!important;margin:0!important;letter-spacing:-.05em}.score-unit{font-size:10px;color:var(--muted);font-weight:800;margin-left:3px}.score-center .score-delta{position:absolute;left:calc(50% + 39px);top:50%;transform:translateY(-50%) scale(.85);white-space:nowrap}.score-center .score-delta.show{transform:translateY(-50%) scale(1)}.scorebar{width:100%;margin-top:10px}
/* new arcade scenes */
.scene.kart-scene{background:linear-gradient(#75dfff 0 50%,#77cd72 50% 63%,#454d61 63% 100%)}.kart-sky{position:absolute;inset:0;background:radial-gradient(circle at 80% 14%,#fff5a7 0 34px,transparent 35px),linear-gradient(160deg,transparent 0 65%,rgba(255,255,255,.12) 65% 67%,transparent 67%)}.kart-track{position:absolute;left:-8%;right:-8%;bottom:-25px;height:180px;background:#414a5d;transform:perspective(300px) rotateX(22deg);border-top:10px solid #eef5ff;box-shadow:inset 0 14px #ff5e67}.lane-mark{position:absolute;left:0;right:0;height:5px;background:repeating-linear-gradient(90deg,#fff 0 34px,transparent 34px 66px);opacity:.65}.lane-mark.l1{top:55px}.lane-mark.l2{top:112px}.finish-line{position:absolute;right:8%;bottom:44px;width:18px;height:145px;background:repeating-linear-gradient(0deg,#fff 0 10px,#1d2738 10px 20px)}.kart{position:absolute;z-index:10;width:106px;left:10%;transition:left .35s cubic-bezier(.15,.8,.2,1)}.player-kart{bottom:34px}.kart.rival{width:88px;filter:hue-rotate(110deg) saturate(1.2);opacity:.9}.kart.r1{bottom:112px}.kart.r2{bottom:176px;filter:hue-rotate(220deg) saturate(1.2)}.lap-badge{position:absolute;left:18px;bottom:18px;z-index:20;padding:8px 12px;border-radius:12px;background:rgba(255,255,255,.82);font-size:10px;font-weight:900}.nitro{position:absolute;left:50%;top:160px;z-index:30;transform:translateX(-50%) scale(.7);opacity:0;color:#fff;font-size:34px;font-weight:950;text-shadow:0 5px 18px #168fff;transition:.2s}.nitro.show{opacity:1;transform:translateX(-50%) scale(1.05)}
.heart-bar{position:absolute;left:20px;top:72px;z-index:25;font-size:20px}
.scene.rhythm-scene{background:radial-gradient(circle at 50% 10%,rgba(255,101,214,.38),transparent 30%),linear-gradient(180deg,#23164b,#132c68 62%,#27134d)}.stage-lights{position:absolute;inset:0;background:linear-gradient(72deg,transparent 42%,rgba(77,232,255,.16) 43% 48%,transparent 49%),linear-gradient(108deg,transparent 42%,rgba(255,102,208,.16) 43% 48%,transparent 49%);animation:lights 1s ease-in-out infinite alternate}@keyframes lights{to{filter:hue-rotate(40deg);opacity:.65}}.beat-lane{position:absolute;left:50%;top:68px;bottom:68px;width:min(460px,72%);transform:translateX(-50%);border-left:1px solid rgba(255,255,255,.15);border-right:1px solid rgba(255,255,255,.15);background:linear-gradient(90deg,transparent,rgba(255,255,255,.05),transparent)}.judge-line{position:absolute;left:0;right:0;bottom:20px;height:5px;background:linear-gradient(90deg,#54eaff,#fff,#ff72cf);box-shadow:0 0 18px #5cecff}.judge-line span{position:absolute;right:8px;bottom:8px;color:#fff;font-size:8px;font-weight:900}.word-note{position:absolute;left:50%;top:0;min-width:150px;padding:9px 14px;border-radius:14px;background:rgba(255,255,255,.9);border:1px solid #fff;text-align:center;font-size:17px;font-weight:900;color:#34275c;box-shadow:0 8px 26px rgba(0,0,0,.22)}.rhythm-mascot{position:absolute;width:100px;left:26px;bottom:54px;filter:drop-shadow(0 12px 18px rgba(0,0,0,.24));animation:dance .55s ease-in-out infinite alternate}@keyframes dance{to{transform:translateY(-8px) rotate(4deg)}}.speaker{position:absolute;bottom:76px;width:72px;height:72px;border-radius:22px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);display:grid;place-items:center;color:#fff;font-size:36px}.speaker.sp1{right:110px}.speaker.sp2{right:26px}
.scene.rescue-scene{background:radial-gradient(circle at 20% 15%,rgba(57,168,255,.22),transparent 22%),radial-gradient(circle at 78% 22%,rgba(146,88,255,.25),transparent 24%),linear-gradient(#07142d,#13295b 62%,#09152f)}.space-stars{position:absolute;inset:0;background-image:radial-gradient(#fff 1px,transparent 1px),radial-gradient(#7bdfff 1px,transparent 1px);background-size:36px 36px,52px 52px;background-position:0 0,13px 17px;opacity:.55}.ufo{position:absolute;z-index:16;width:116px;left:8%;bottom:70px;transition:left .38s cubic-bezier(.2,.8,.2,1);filter:drop-shadow(0 14px 16px rgba(0,0,0,.32))}.floating-alien{position:absolute;z-index:10;width:72px;transition:.35s}.floating-alien.rescued{transform:scale(.2) translateY(100px);opacity:0}.alien-label{position:absolute;z-index:17;transform:translate(-50%,0);padding:5px 9px;border-radius:10px;background:#fff;font-size:10px;font-weight:900;white-space:nowrap;box-shadow:0 6px 18px rgba(0,0,0,.18)}.rescue-count{position:absolute;left:18px;bottom:20px;z-index:20;padding:8px 12px;border-radius:12px;background:rgba(255,255,255,.82);font-size:10px;font-weight:900}

/* ===== v10 practice-only AdSense rail ===== */
.practice-left-ad{
 position:fixed;z-index:35;left:12px;top:88px;bottom:12px;width:142px;border-radius:24px;
 display:flex;align-items:center;justify-content:center;padding:10px;text-align:center;
}
.practice-left-ad-inner{
 width:100%;height:100%;min-height:300px;border-radius:18px;border:1px dashed rgba(82,106,138,.34);
 background:linear-gradient(180deg,rgba(255,255,255,.20),rgba(255,255,255,.06));
 display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;color:var(--muted)
}
.practice-left-ad-inner span{font-size:7px;letter-spacing:.16em;font-weight:900}
.practice-left-ad-inner strong{font-size:11px;color:var(--ink)}
.practice-left-ad-inner small{font-size:7.5px}
@media(min-width:1101px){
 .practice.wrap{width:min(var(--max),calc(100% - 182px));margin-left:168px;margin-right:14px}
}
@media(max-width:1100px){
 .practice-left-ad{display:none}
}
.guide-score-box{
 margin:10px 0 4px;padding:16px 18px;border-radius:20px;border:1px solid var(--edge);
 background:linear-gradient(145deg,rgba(255,255,255,.48),rgba(87,173,255,.08));
 box-shadow:inset 0 1px rgba(255,255,255,.8)
}
.guide-score-box p{margin:0}
.guide-score-box p+p{margin-top:9px}