:root{color-scheme:dark;--bg:#121418;--panel:#1c2027;--ink:#f7f5eb;--muted:#aeb6bd;--acid:#dbff74;--line:#363c44}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 system-ui,'Yu Gothic',sans-serif}a{color:inherit}button,input,select{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer;color:inherit;background:transparent;border:1px solid var(--line);border-radius:12px;padding:12px 18px}button:disabled{opacity:.45;cursor:default}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid var(--acid);outline-offset:4px}header{max-width:1120px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:25px 24px;gap:16px}header>a:last-child{font-size:13px;color:var(--muted)}.brand{text-decoration:none;font-size:29px;font-weight:950;letter-spacing:-.06em}.brand span{display:block;font-size:9px;letter-spacing:.28em;color:var(--acid)}main{max-width:1120px;margin:auto;padding:0 24px 70px}.hero{display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:70px;padding:65px 0 75px}.kicker{font-size:12px;font-weight:700;letter-spacing:.17em;color:var(--acid)}h1{font-size:clamp(40px,6.5vw,76px);line-height:1.19;letter-spacing:-.045em;margin:20px 0}em{color:var(--acid);font-style:normal}.lead{color:#d1d5d8;font-size:18px;margin-bottom:30px}.primary{display:inline-flex;align-items:center;justify-content:center;background:var(--acid);color:#151b0a;border:0;font-weight:750;text-decoration:none;border-radius:12px;padding:15px 24px}.sub{color:var(--muted);font-size:13px}.hero-demo{border:1px solid #59663f;border-radius:32px;padding:32px;background:linear-gradient(140deg,#313d26,#1b2028);text-align:center;box-shadow:16px 18px 0 #20252a;transform:rotate(3deg)}.hero-demo>span{display:block;text-align:left;font-size:12px;color:var(--acid)}.hero-demo strong{display:block;font-size:52px;margin-top:35px;letter-spacing:-.04em}.hero-demo p{color:var(--muted)}.hero-demo b{display:grid;place-items:center;font-size:50px;border-radius:50%;width:85px;height:85px;background:var(--acid);color:#121418;margin:30px auto}.hero-demo small{font-size:11px}.demo-line{height:3px;background:var(--acid);width:60%;margin:30px auto}.benefits{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.benefits b{font-size:12px;color:var(--acid)}h2{font-size:25px;line-height:1.45}.benefits p{font-size:14px;color:var(--muted)}.notice{margin:35px 0;font-size:12px;color:var(--muted);border-left:2px solid var(--line);padding-left:14px}.panel{padding:30px;border:1px solid var(--line);border-radius:22px;background:var(--panel);margin:24px 0}.modes{display:grid;grid-template-columns:1fr 1fr;gap:15px}.modes button{text-align:left;padding:20px}.modes b{display:block;font-size:22px}.modes span{font-size:13px;color:var(--muted)}.modes [aria-pressed=true]{border-color:var(--acid);background:#2c3622}.selection{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:20px 0}label{font-size:13px;color:var(--muted)}select{display:block;width:100%;margin-top:6px;padding:12px;border-radius:8px;background:var(--bg);color:var(--ink);border:1px solid var(--line);min-width:0}.checkbox{display:flex;gap:12px;align-items:center}input{accent-color:var(--acid)}details{padding:15px 0}summary{cursor:pointer;color:var(--muted);font-size:14px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.stage-map{display:grid;grid-template-columns:repeat(auto-fill,minmax(125px,1fr));gap:10px;margin-top:24px}.stage-map button{text-align:left;font-size:12px;padding:12px}.stage-map b{display:block;color:var(--acid);font-size:17px}.stage-map [aria-pressed=true]{border-color:var(--acid)}.session-top{display:flex;justify-content:space-between;gap:15px;font-size:13px;color:var(--muted)}#session{max-width:740px;margin:15px auto}.track,.clock{height:4px;background:#343b42;overflow:hidden}.track div{height:100%;background:var(--acid);width:0}.card{position:relative;text-align:center;margin:20px 0;border:1px solid var(--line);border-radius:24px;background:var(--panel);height:clamp(220px,43dvh,390px);display:flex;flex-direction:column;justify-content:center;padding:22px;overflow:hidden}.card>span{color:var(--muted);font-size:13px}.card h1{font-size:clamp(30px,7vw,66px);overflow-wrap:anywhere;margin:20px 0 10px;line-height:1.15}.card p{min-height:50px;max-height:100px;overflow:auto;color:var(--acid);margin:10px 0}.clock{position:absolute;bottom:0;left:0;width:100%}.clock span{display:block;height:100%;background:var(--acid);transform-origin:left}.enter{animation:entry .1s ease-out}.session-controls{display:flex;align-items:center;justify-content:center;gap:18px}.ok{display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--acid);color:#171b10;min-width:145px;height:100px;font-size:50px;border:0}.ok span{font-size:10px}.session-controls>button:not(.ok){font-size:13px;padding:12px}#sessionStatus{color:var(--muted);font-size:13px;text-align:center}.scores{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:30px 0}.scores div{font-size:12px;color:var(--muted)}.scores b{display:block;font-size:42px;color:var(--acid)}#result h1{font-size:38px}#resultWords{padding-left:22px;font-size:14px}footer{max-width:1120px;margin:auto;padding:20px 24px;font-size:12px;color:var(--muted)}[hidden]{display:none!important}body.playing header,body.playing footer{display:none}body.playing main{padding-top:15px;padding-bottom:15px}@keyframes entry{from{opacity:.65;transform:translateY(4px)}to{opacity:1;transform:none}}@media(max-width:650px){header,main{padding-left:18px;padding-right:18px}.hero{grid-template-columns:1fr;gap:40px;padding-top:30px}.hero h1{font-size:52px}.hero-demo{max-width:330px;width:100%;margin:auto}.benefits{grid-template-columns:1fr;gap:12px}.benefits h2 br{display:none}.benefits h2{font-size:22px;margin:10px 0}.selection{grid-template-columns:1fr;gap:10px}.modes{gap:8px}.modes button{padding:12px 10px}.modes b{font-size:19px}.modes span{font-size:11px}.panel{padding:20px}.session-controls{gap:8px}.session-controls>button:not(.ok){padding:12px 8px;font-size:12px}.ok{min-width:120px}.scores b{font-size:34px}}@media(prefers-reduced-motion:reduce){.enter{animation:none}}

.ok[aria-pressed=true]{background:#fff;box-shadow:0 0 0 3px var(--acid)}.options{border-top:1px solid var(--line);margin-top:20px;padding-top:12px}.options h3{font-size:15px;margin:0}

.progress-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:24px 0}.progress-stats b{display:block;font-size:clamp(22px,3vw,34px);color:var(--acid);line-height:1.5}.progress-stats>div{font-size:12px;color:var(--muted);overflow-wrap:anywhere}.route-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:18px 0}.route-card{text-align:left;min-width:0;padding:20px;background:#171b21}.route-card>b{font-size:17px;color:var(--acid)}.route-card p{font-size:13px;color:var(--muted)}.word-progress{display:flex;height:8px;border-radius:5px;background:#343b42;overflow:hidden;margin:14px 0}.word-progress span{display:block;height:100%;flex-shrink:0}.word-progress .early{background:var(--acid)}.word-progress .late{background:#e4c276}.word-progress .unmarked{background:#87919e}.course-overview{border-top:1px solid var(--line);margin-top:28px;padding-top:20px}.stage-progress{display:block;margin-top:10px;font-size:10px;color:var(--muted)}.stage-detail{margin-top:22px}.stage-word-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:15px 0}.stage-word-list>div{border-bottom:1px solid var(--line);padding:10px;overflow-wrap:anywhere}.stage-word-list b,.stage-word-list span{display:block}.stage-word-list span{font-size:12px;color:var(--muted)}#resultProgress>div{display:inline-block;margin:0 22px 16px 0}#resultProgress b{color:var(--acid);font-size:26px;display:block}@media(max-width:700px){.route-grid{grid-template-columns:1fr}.progress-stats{gap:10px}.stage-word-list{grid-template-columns:1fr}}

@media(max-width:400px){.progress-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.progress-stats>div:first-child{grid-column:1/-1}.progress-stats>div:first-child b{font-size:28px}}

dialog{color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:22px;width:min(800px,calc(100% - 24px));max-height:90dvh;overflow:auto;padding:26px}dialog::backdrop{background:#080b10c9}.example-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.example-heading button{white-space:nowrap}.example-heading h2{margin-top:0}.example-card{padding:22px 0;border-top:1px solid var(--line)}.example-english{font-size:23px;line-height:1.7}.example-card mark{background:#dfff7430;color:var(--acid);padding:0 3px;border-radius:4px}.example-card button{font-size:13px;margin-bottom:12px}.example-entry{margin:12px 0}.plus-badge{display:block;margin-top:10px;font-size:10px;color:var(--acid)}.plus-note button{font-size:12px;padding:6px 10px}.plan-price{font-size:27px;color:var(--acid)}.plan-price span{display:block;font-size:12px;color:var(--muted)}@media(max-width:400px){dialog{padding:18px}.example-english{font-size:20px}}

.level-guide{border-top:1px solid var(--line);padding-top:25px;margin-top:25px}.level-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.level-card{min-width:0;border:1px solid var(--line);padding:20px;border-radius:16px;background:#171b21}.level-card p{font-size:13px}.level-card h3{margin:12px 0}.level-samples{color:var(--acid);overflow-wrap:anywhere}.level-card button{font-size:13px}#ngslLevelNote{margin-bottom:0}@media(max-width:700px){.level-grid{grid-template-columns:1fr}}

.speak-button{width:44px;height:44px;display:grid;place-items:center;padding:7px!important;flex-shrink:0}.speak-button[aria-pressed=true]{color:var(--acid);border-color:var(--acid)}.speech-note{text-align:center;font-size:11px;min-height:0}#result h1{font-size:28px;margin-bottom:12px}#result .scores{margin-top:18px}#resultWords li{margin:9px 0;line-height:1.8}#resultActionNote{margin-top:14px}@media(max-width:400px){.session-controls{display:grid;grid-template-columns:minmax(0,1fr) 110px minmax(0,1fr) 40px;gap:6px}.session-controls .ok{min-width:0;width:110px}.session-controls>button:not(.ok){padding:10px 4px;font-size:11px}.session-controls .speak-button{width:40px;height:40px}}

.word-progress .relearning{background:#82c9e8}.result-memory{margin:12px 0}.result-next-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.result-next-actions button{padding:14px 10px}.result-back{margin-top:12px;font-size:12px}.result-memory p{margin-bottom:12px}@media(max-width:500px){.result-next-actions{grid-template-columns:1fr;gap:10px}}

/* Learning controls are separate from optional playback settings. */
.session-top{align-items:center}.session-back{font-size:25px;line-height:1;padding:10px 14px;flex-shrink:0}.session-top #sessionTitle{flex:1;min-width:0}.session-top #progress{white-space:nowrap}.session-controls{display:flex!important;gap:16px}.session-controls #pause{width:48px;height:48px;display:grid;place-items:center}.session-controls .ok{width:145px;min-width:100px}.session-options{display:flex;justify-content:flex-end;align-items:center;gap:10px;margin-top:24px;padding-top:16px;border-top:1px solid var(--line)}.session-options button{font-size:12px}.session-options [aria-pressed=true]{border-color:var(--acid);color:var(--acid)}#sessionExamples{display:block;margin:16px auto;font-size:13px}.home-nav{display:flex;flex-wrap:wrap;gap:18px;font-size:13px}.home-actions,.home-tabs{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0}.home-tabs [aria-pressed=true]{border-color:var(--acid);color:var(--acid)}#learningHome>h1{font-size:36px}#learningHome .level-guide{margin-top:16px;padding-top:16px}#learningHome .level-guide>h2{font-size:24px}.level-fraction{font-size:19px!important;font-weight:700;color:var(--acid)}.level-card progress{width:100%;height:10px;accent-color:var(--acid)}body[data-view=learn] #courseOverview{display:none}body[data-view=learn] footer{font-size:11px}#homeSaveError:empty{display:none}@media(max-width:650px){header{flex-wrap:wrap}.home-nav{width:100%;justify-content:space-between}.session-controls{gap:10px}.session-controls .ok{width:120px}.session-controls #manualNext{padding:12px 10px;min-width:78px}.session-top{gap:10px;font-size:11px}.level-fraction{font-size:17px!important}}

body[data-view=learn] #ngslLevelGuide{display:flex;flex-direction:column;border-top:0;padding-top:0}body[data-view=learn] #ngslLevelGuide>h2,body[data-view=learn] #ngslLevelGuide>p:not(#placementState){display:none}body[data-view=learn] #ngslLevelCards{order:0}body[data-view=learn] #startLevelTest{order:1;margin-top:20px;align-self:flex-start;background:transparent;border:1px solid var(--line);color:var(--muted);font-size:13px;padding:10px 14px}body[data-view=learn] #placementState{order:2;font-size:11px}body[data-view=learn] #undoPlacementClear{order:3;font-size:12px}body[data-view=learn] .level-card{padding:18px}body[data-view=learn] .level-card h3{font-size:19px;margin:8px 0}body[data-view=learn] .level-card h3+p{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;font-size:12px;color:var(--muted)}body[data-view=learn] .level-card .level-samples,body[data-view=learn] .level-card .sub{display:none}body[data-view=learn] .level-card.has-skip .skip-note{display:block;font-size:11px}body[data-view=learn] .level-fraction{margin:12px 0 4px}body[data-view=learn] .level-card button{margin-top:10px}

.level-retention{font-size:11px!important;color:var(--muted);margin:6px 0}

.hero-film{position:relative;min-width:0;align-self:center}.hero-film-screen{position:relative;height:550px;overflow:hidden;border:1px solid #414936;border-radius:26px;background:#121418;box-shadow:0 30px 90px #0007}.hero-film video{width:100%;height:100%;display:block;object-fit:contain;object-position:center}.hero-film-shade{position:absolute;inset:0;pointer-events:none;background:linear-gradient(100deg,#12141877,#00000026 35%,#0000004d);box-shadow:inset 0 -65px 60px -40px #121418}.hero-film-caption{position:absolute;bottom:62px;left:18px;right:18px;display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:11px;color:#e1e4dd}.hero-film-caption>span{background:#101318d9;padding:6px 10px;border-radius:8px}.hero-film-caption button{background:#101318e6;padding:7px 10px;font-size:11px;white-space:nowrap}.hero-film-note{font-size:12px;text-align:center;color:var(--muted);margin:16px 0 0}@media(max-width:650px){.hero-film{width:100%;max-width:380px;margin:auto}.hero-film-screen{height:420px}.hero-film-caption{bottom:59px;left:10px;right:10px}.hero-film-caption>span{font-size:10px;padding:5px 7px}}@media(prefers-reduced-motion:reduce){.hero-film-screen{box-shadow:none}}